| File: | desktop/treeview.c |
| Warning: | line 3921, column 2 Value stored to 'redraw' is never read |
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| 1 | /* |
| 2 | * Copyright 2012 - 2013 Michael Drake <tlsa@netsurf-browser.org> |
| 3 | * |
| 4 | * This file is part of NetSurf, http://www.netsurf-browser.org/ |
| 5 | * |
| 6 | * NetSurf is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * NetSurf is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 17 | */ |
| 18 | |
| 19 | /** |
| 20 | * \file |
| 21 | * |
| 22 | * Treeview handling implementation. |
| 23 | */ |
| 24 | |
| 25 | #include "utils/config.h" |
| 26 | |
| 27 | #include <string.h> |
| 28 | |
| 29 | #include "utils/utils.h" |
| 30 | #include "utils/log.h" |
| 31 | #include "utils/nsurl.h" |
| 32 | #include "utils/nscolour.h" |
| 33 | #include "utils/nsoption.h" |
| 34 | #include "netsurf/bitmap.h" |
| 35 | #include "netsurf/content.h" |
| 36 | #include "netsurf/plotters.h" |
| 37 | #include "netsurf/clipboard.h" |
| 38 | #include "netsurf/layout.h" |
| 39 | #include "netsurf/keypress.h" |
| 40 | #include "netsurf/core_window.h" |
| 41 | #include "content/hlcache.h" |
| 42 | #include "css/utils.h" |
| 43 | |
| 44 | #include "desktop/bitmap.h" |
| 45 | #include "desktop/knockout.h" |
| 46 | #include "desktop/textarea.h" |
| 47 | #include "desktop/treeview.h" |
| 48 | #include "desktop/cw_helper.h" |
| 49 | #include "desktop/gui_internal.h" |
| 50 | #include "desktop/system_colour.h" |
| 51 | |
| 52 | /** |
| 53 | * The maximum horizontal size a treeview can possibly be. |
| 54 | * |
| 55 | * \todo get rid of REDRAW_MAX -- need to be able to know window size |
| 56 | */ |
| 57 | #define REDRAW_MAX8000 8000 |
| 58 | |
| 59 | |
| 60 | /** |
| 61 | * Treeview handling global context |
| 62 | */ |
| 63 | struct treeview_globals { |
| 64 | unsigned initialised; |
| 65 | int line_height; |
| 66 | int furniture_width; |
| 67 | int step_width; |
| 68 | int window_padding; |
| 69 | int icon_size; |
| 70 | int icon_step; |
| 71 | int move_offset; |
| 72 | } tree_g; |
| 73 | |
| 74 | |
| 75 | /** |
| 76 | * Section type of a treeview at a point |
| 77 | */ |
| 78 | enum treeview_node_part { |
| 79 | TV_NODE_PART_TOGGLE, /**< Expansion toggle */ |
| 80 | TV_NODE_PART_ON_NODE, /**< Node content (text, icon) */ |
| 81 | TV_NODE_PART_NONE /**< Empty area */ |
| 82 | }; |
| 83 | |
| 84 | |
| 85 | /** |
| 86 | * Text within a treeview field or node |
| 87 | */ |
| 88 | struct treeview_text { |
| 89 | const char *data; /**< Text string */ |
| 90 | uint32_t len; /**< Length of string in bytes */ |
| 91 | int width; /**< Width of text in px */ |
| 92 | }; |
| 93 | |
| 94 | |
| 95 | /** |
| 96 | * a treeview field |
| 97 | */ |
| 98 | struct treeview_field { |
| 99 | /** flags controlling how field is interpreted */ |
| 100 | enum treeview_field_flags flags; |
| 101 | |
| 102 | lwc_string *field; /**< field contents */ |
| 103 | struct treeview_text value; /**< field text */ |
| 104 | }; |
| 105 | |
| 106 | |
| 107 | /** |
| 108 | * flags indicating render state of node. |
| 109 | */ |
| 110 | enum treeview_node_flags { |
| 111 | TV_NFLAGS_NONE = 0, /**< No node flags set */ |
| 112 | TV_NFLAGS_EXPANDED = (1 << 0), /**< Whether node is expanded */ |
| 113 | TV_NFLAGS_SELECTED = (1 << 1), /**< Whether node is selected */ |
| 114 | TV_NFLAGS_SPECIAL = (1 << 2), /**< Render as special node */ |
| 115 | TV_NFLAGS_MATCHED = (1 << 3), /**< Whether node matches search */ |
| 116 | }; |
| 117 | |
| 118 | |
| 119 | /** |
| 120 | * Treeview target position |
| 121 | */ |
| 122 | enum treeview_target_pos { |
| 123 | TV_TARGET_ABOVE, |
| 124 | TV_TARGET_INSIDE, |
| 125 | TV_TARGET_BELOW, |
| 126 | TV_TARGET_NONE |
| 127 | }; |
| 128 | |
| 129 | |
| 130 | /** |
| 131 | * Treeview node |
| 132 | */ |
| 133 | struct treeview_node { |
| 134 | enum treeview_node_flags flags; /**< Node flags */ |
| 135 | enum treeview_node_type type; /**< Node type */ |
| 136 | |
| 137 | int height; /**< Includes height of any descendants (pixels) */ |
| 138 | int inset; /**< Node's inset depending on tree depth (pixels) */ |
| 139 | |
| 140 | treeview_node *parent; /**< parent node */ |
| 141 | treeview_node *prev_sib; /**< previous sibling node */ |
| 142 | treeview_node *next_sib; /**< next sibling node */ |
| 143 | treeview_node *children; /**< first child node */ |
| 144 | |
| 145 | void *client_data; /**< Passed to client on node event msg callback */ |
| 146 | |
| 147 | struct treeview_text text; /** Text to show for node (default field) */ |
| 148 | }; |
| 149 | |
| 150 | |
| 151 | /** |
| 152 | * Node entry |
| 153 | * |
| 154 | * node entry contains a base node at the beginning allowing for |
| 155 | * trivial containerof by cast and some number of fields. |
| 156 | */ |
| 157 | struct treeview_node_entry { |
| 158 | treeview_node base; /**< Entry class inherits node base class */ |
| 159 | struct treeview_field fields[FLEX_ARRAY_LEN_DECL]; |
| 160 | }; |
| 161 | |
| 162 | |
| 163 | /** |
| 164 | * A mouse position wrt treeview |
| 165 | */ |
| 166 | struct treeview_pos { |
| 167 | int x; /**< Mouse X coordinate */ |
| 168 | int y; /**< Mouse Y coordinate */ |
| 169 | int node_y; /**< Top of node at y */ |
| 170 | int node_h; /**< Height of node at y */ |
| 171 | }; |
| 172 | |
| 173 | |
| 174 | /** |
| 175 | * Treeview drag state |
| 176 | */ |
| 177 | struct treeview_drag { |
| 178 | enum { |
| 179 | TV_DRAG_NONE, |
| 180 | TV_DRAG_SELECTION, |
| 181 | TV_DRAG_MOVE, |
| 182 | TV_DRAG_TEXTAREA, |
| 183 | TV_DRAG_SEARCH, |
| 184 | } type; /**< Drag type */ |
| 185 | treeview_node *start_node; /**< Start node */ |
| 186 | bool_Bool selected; /**< Start node is selected */ |
| 187 | enum treeview_node_part part; /**< Node part at start */ |
| 188 | struct treeview_pos start; /**< Start pos */ |
| 189 | struct treeview_pos prev; /**< Previous pos */ |
| 190 | }; |
| 191 | |
| 192 | |
| 193 | /** |
| 194 | * Treeview node move details |
| 195 | */ |
| 196 | struct treeview_move { |
| 197 | treeview_node *root; /**< Head of yanked node list */ |
| 198 | treeview_node *target; /**< Move target */ |
| 199 | struct rect target_area; /**< Pos/size of target indicator */ |
| 200 | enum treeview_target_pos target_pos; /**< Pos wrt render node */ |
| 201 | }; |
| 202 | |
| 203 | |
| 204 | /** |
| 205 | * Treeview node edit details |
| 206 | */ |
| 207 | struct treeview_edit { |
| 208 | treeview_node *node; /**< Node being edited, or NULL */ |
| 209 | struct textarea *textarea; /**< Textarea for edit, or NULL */ |
| 210 | lwc_string *field; /**< The field being edited, or NULL */ |
| 211 | int x; /**< Textarea x position */ |
| 212 | int y; /**< Textarea y position */ |
| 213 | int w; /**< Textarea width */ |
| 214 | int h; /**< Textarea height */ |
| 215 | }; |
| 216 | |
| 217 | |
| 218 | /** |
| 219 | * Treeview search box details |
| 220 | */ |
| 221 | struct treeview_search { |
| 222 | struct textarea *textarea; /**< Search box. */ |
| 223 | bool_Bool active; /**< Whether the search box has focus. */ |
| 224 | bool_Bool search; /**< Whether we have a search term. */ |
| 225 | int height; /**< Current search display height. */ |
| 226 | }; |
| 227 | |
| 228 | |
| 229 | /** |
| 230 | * The treeview context |
| 231 | */ |
| 232 | struct treeview { |
| 233 | uint32_t view_width; /**< Viewport horizontal size */ |
| 234 | |
| 235 | treeview_flags flags; /**< Treeview behaviour settings */ |
| 236 | |
| 237 | treeview_node *root; /**< Root node */ |
| 238 | |
| 239 | struct treeview_field *fields; /**< Array of fields */ |
| 240 | int n_fields; /**< fields[n_fields] is folder, lower are entry fields */ |
| 241 | int field_width; /**< Max width of shown field names */ |
| 242 | |
| 243 | struct treeview_drag drag; /**< Drag state */ |
| 244 | struct treeview_move move; /**< Move drag details */ |
| 245 | struct treeview_edit edit; /**< Edit details */ |
| 246 | |
| 247 | struct treeview_search search; /**< Treeview search box */ |
| 248 | |
| 249 | const struct treeview_callback_table *callbacks; /**< For node events */ |
| 250 | |
| 251 | struct core_window *cw_h; /**< Core window handle */ |
| 252 | }; |
| 253 | |
| 254 | |
| 255 | /** |
| 256 | * Treeview furniture states. |
| 257 | */ |
| 258 | enum treeview_furniture_id { |
| 259 | TREE_FURN_EXPAND = 0, |
| 260 | TREE_FURN_CONTRACT, |
| 261 | TREE_FURN_LAST |
| 262 | }; |
| 263 | |
| 264 | |
| 265 | /** |
| 266 | * style for a node |
| 267 | */ |
| 268 | struct treeview_node_style { |
| 269 | plot_style_t bg; /**< Background */ |
| 270 | plot_font_style_t text; /**< Text */ |
| 271 | plot_font_style_t itext; /**< Entry field text */ |
| 272 | |
| 273 | plot_style_t sbg; /**< Selected background */ |
| 274 | plot_font_style_t stext; /**< Selected text */ |
| 275 | plot_font_style_t sitext; /**< Selected entry field text */ |
| 276 | |
| 277 | struct { |
| 278 | int size; |
| 279 | struct bitmap *bmp; |
| 280 | struct bitmap *sel; |
| 281 | } furn[TREE_FURN_LAST]; |
| 282 | }; |
| 283 | |
| 284 | |
| 285 | /** |
| 286 | * Plot style for odd rows |
| 287 | */ |
| 288 | struct treeview_node_style plot_style_odd; |
| 289 | |
| 290 | |
| 291 | /** |
| 292 | * Plot style for even rows |
| 293 | */ |
| 294 | struct treeview_node_style plot_style_even; |
| 295 | |
| 296 | |
| 297 | /** |
| 298 | * Treeview content resource data |
| 299 | */ |
| 300 | struct treeview_resource { |
| 301 | const char *url; |
| 302 | struct hlcache_handle *c; |
| 303 | int height; |
| 304 | bool_Bool ready; |
| 305 | }; |
| 306 | |
| 307 | |
| 308 | /** |
| 309 | * treeview resource indexes |
| 310 | */ |
| 311 | enum treeview_resource_id { |
| 312 | TREE_RES_ARROW = 0, |
| 313 | TREE_RES_CONTENT, |
| 314 | TREE_RES_FOLDER, |
| 315 | TREE_RES_FOLDER_SPECIAL, |
| 316 | TREE_RES_SEARCH, |
| 317 | TREE_RES_LAST |
| 318 | }; |
| 319 | |
| 320 | |
| 321 | /** |
| 322 | * Treeview content resources |
| 323 | */ |
| 324 | static struct treeview_resource treeview_res[TREE_RES_LAST] = { |
| 325 | { "resource:icons/arrow-l.png", NULL((void*)0), 0, false0 }, |
| 326 | { "resource:icons/content.png", NULL((void*)0), 0, false0 }, |
| 327 | { "resource:icons/directory.png", NULL((void*)0), 0, false0 }, |
| 328 | { "resource:icons/directory2.png", NULL((void*)0), 0, false0 }, |
| 329 | { "resource:icons/search.png", NULL((void*)0), 0, false0 } |
| 330 | }; |
| 331 | |
| 332 | |
| 333 | /** |
| 334 | * Get the display height of the treeview data component of the display. |
| 335 | * |
| 336 | * \param[in] tree Treeview to get the height of. |
| 337 | * \return the display height in pixels. |
| 338 | */ |
| 339 | static inline int treeview__get_display_height(const treeview *tree) |
| 340 | { |
| 341 | return (tree->search.search == false0) ? |
| 342 | tree->root->height : |
| 343 | tree->search.height; |
| 344 | } |
| 345 | |
| 346 | |
| 347 | /** |
| 348 | * Corewindow callback wrapper: Request a redraw of the window |
| 349 | * |
| 350 | * \param[in] tree The treeview to request redraw on. |
| 351 | * \param[in] r rectangle to redraw |
| 352 | */ |
| 353 | static inline void treeview__cw_invalidate_area( |
| 354 | const struct treeview *tree, |
| 355 | const struct rect *r) |
| 356 | { |
| 357 | if (tree->cw_h != NULL((void*)0)) { |
| 358 | guit->corewindow->invalidate(tree->cw_h, r); |
| 359 | } |
| 360 | } |
| 361 | |
| 362 | |
| 363 | /** |
| 364 | * Corewindow callback wrapper: Request a full redraw of the window |
| 365 | * |
| 366 | * \param[in] tree The treeview to request redraw on. |
| 367 | */ |
| 368 | static inline void treeview__cw_full_redraw( |
| 369 | const struct treeview *tree) |
| 370 | { |
| 371 | if (tree->cw_h != NULL((void*)0)) { |
| 372 | static const struct rect r = { |
| 373 | .x0 = 0, |
| 374 | .y0 = 0, |
| 375 | .x1 = REDRAW_MAX8000, |
| 376 | .y1 = REDRAW_MAX8000, |
| 377 | }; |
| 378 | guit->corewindow->invalidate(tree->cw_h, &r); |
| 379 | } |
| 380 | } |
| 381 | |
| 382 | |
| 383 | /** |
| 384 | * Get height used by treeview's search bar (or 0 if not present). |
| 385 | * |
| 386 | * \param tree Treeview object to check. |
| 387 | * \return height used by search bar in pixels. |
| 388 | */ |
| 389 | static inline unsigned treeview__get_search_height( |
| 390 | const treeview *tree) |
| 391 | { |
| 392 | return (tree->flags & TREEVIEW_SEARCHABLE) ? |
| 393 | tree_g.line_height : 0; |
| 394 | } |
| 395 | |
| 396 | |
| 397 | /** |
| 398 | * Corewindow callback wrapper: Update the limits of the window |
| 399 | * |
| 400 | * \param[in] tree The treeview to update size for. |
| 401 | * \param[in] width the width in px, or negative if don't care |
| 402 | * \param[in] height the height in px, or negative if don't care |
| 403 | */ |
| 404 | static inline void treeview__cw_update_size( |
| 405 | const struct treeview *tree, |
| 406 | int width, int height) |
| 407 | { |
| 408 | if (tree->cw_h != NULL((void*)0)) { |
| 409 | guit->corewindow->set_extent(tree->cw_h, |
| 410 | width, |
| 411 | height + treeview__get_search_height(tree)); |
| 412 | } |
| 413 | } |
| 414 | |
| 415 | |
| 416 | /** |
| 417 | * Corewindow callback_wrapper: Scroll to top of window. |
| 418 | * |
| 419 | * \param[in] tree The treeview to scroll. |
| 420 | */ |
| 421 | static inline void treeview__cw_scroll_top( |
| 422 | const struct treeview *tree) |
| 423 | { |
| 424 | struct rect r = { |
| 425 | .x0 = 0, |
| 426 | .y0 = 0, |
| 427 | .x1 = tree_g.window_padding, |
| 428 | .y1 = tree_g.line_height, |
| 429 | }; |
| 430 | |
| 431 | cw_helper_scroll_visible(tree->cw_h, &r); |
| 432 | } |
| 433 | |
| 434 | /** |
| 435 | * Corewindow callback wrapper: Get window viewport dimensions |
| 436 | * |
| 437 | * \param[in] tree The treeview to get dimensions for. |
| 438 | * \param[out] width to be set to viewport width in px |
| 439 | * \param[out] height to be set to viewport height in px |
| 440 | */ |
| 441 | static inline void treeview__cw_get_window_dimensions( |
| 442 | const struct treeview *tree, |
| 443 | int *width, int *height) |
| 444 | { |
| 445 | if (tree->cw_h != NULL((void*)0)) { |
| 446 | guit->corewindow->get_dimensions(tree->cw_h, width, height); |
| 447 | } |
| 448 | } |
| 449 | |
| 450 | |
| 451 | /** |
| 452 | * Corewindow callback wrapper: Inform corewindow owner of drag status |
| 453 | * |
| 454 | * \param[in] tree The treeview to report status on. |
| 455 | * \param[in] ds the current drag status |
| 456 | */ |
| 457 | static inline void treeview__cw_drag_status( |
| 458 | const struct treeview *tree, |
| 459 | core_window_drag_status ds) |
| 460 | { |
| 461 | if (tree->cw_h != NULL((void*)0)) { |
| 462 | guit->corewindow->drag_status(tree->cw_h, ds); |
| 463 | } |
| 464 | } |
| 465 | |
| 466 | |
| 467 | /** |
| 468 | * Helper function to access the given field of a node |
| 469 | * |
| 470 | * \param tree Treeview that node belongs to |
| 471 | * \param n Node to get field from |
| 472 | * \param i Index of field of interest |
| 473 | * \return text entry for field or NULL. |
| 474 | */ |
| 475 | static inline struct treeview_text * |
| 476 | treeview_get_text_for_field(treeview *tree, treeview_node *n, int i) |
| 477 | { |
| 478 | if (i == 0) { |
| 479 | return &n->text; |
| 480 | |
| 481 | } else if (i < tree->n_fields && n->type == TREE_NODE_ENTRY) { |
| 482 | struct treeview_node_entry *e = (struct treeview_node_entry *)n; |
| 483 | return &e->fields[i - 1].value; |
| 484 | } |
| 485 | |
| 486 | assert(0 && "Bad field index for node")((0 && "Bad field index for node") ? (void) (0) : __assert_fail ("0 && \"Bad field index for node\"", "desktop/treeview.c" , 486, __extension__ __PRETTY_FUNCTION__)); |
| 487 | return NULL((void*)0); |
| 488 | } |
| 489 | |
| 490 | |
| 491 | /** |
| 492 | * Find the next node in depth first tree order |
| 493 | * |
| 494 | * \param node Start node |
| 495 | * \param full Iff true, visit children of collapsed nodes |
| 496 | * \return next node, or NULL if \a node is last node |
| 497 | */ |
| 498 | static inline treeview_node * treeview_node_next(treeview_node *node, bool_Bool full) |
| 499 | { |
| 500 | assert(node != NULL)((node != ((void*)0)) ? (void) (0) : __assert_fail ("node != NULL" , "desktop/treeview.c", 500, __extension__ __PRETTY_FUNCTION__ )); |
| 501 | |
| 502 | if ((full || (node->flags & TV_NFLAGS_EXPANDED)) && |
| 503 | node->children != NULL((void*)0)) { |
| 504 | /* Next node is child */ |
| 505 | node = node->children; |
| 506 | } else { |
| 507 | /* No children. As long as we're not at the root, |
| 508 | * go to next sibling if present, or nearest ancestor |
| 509 | * with a next sibling. */ |
| 510 | |
| 511 | while (node->parent != NULL((void*)0) && node->next_sib == NULL((void*)0)) { |
| 512 | node = node->parent; |
| 513 | } |
| 514 | |
| 515 | if (node->type == TREE_NODE_ROOT) { |
| 516 | node = NULL((void*)0); |
| 517 | |
| 518 | } else { |
| 519 | node = node->next_sib; |
| 520 | } |
| 521 | } |
| 522 | |
| 523 | return node; |
| 524 | } |
| 525 | |
| 526 | |
| 527 | /** |
| 528 | * Find node at given y-position |
| 529 | * |
| 530 | * \param tree Treeview object to delete node from |
| 531 | * \param target_y Target y-position |
| 532 | * \return node at y_target |
| 533 | */ |
| 534 | static treeview_node * treeview_y_node(treeview *tree, int target_y) |
| 535 | { |
| 536 | int y = treeview__get_search_height(tree); |
| 537 | treeview_node *n; |
| 538 | |
| 539 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 539, __extension__ __PRETTY_FUNCTION__ )); |
| 540 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 540, __extension__ __PRETTY_FUNCTION__)); |
| 541 | |
| 542 | n = treeview_node_next(tree->root, false0); |
| 543 | |
| 544 | while (n != NULL((void*)0)) { |
| 545 | int h = (n->type == TREE_NODE_ENTRY) ? |
| 546 | n->height : tree_g.line_height; |
| 547 | if (target_y >= y && target_y < y + h) |
| 548 | return n; |
| 549 | y += h; |
| 550 | |
| 551 | n = treeview_node_next(n, false0); |
| 552 | } |
| 553 | |
| 554 | return NULL((void*)0); |
| 555 | } |
| 556 | |
| 557 | |
| 558 | /** |
| 559 | * Find y position of the top of a node |
| 560 | * |
| 561 | * \param tree Treeview object to delete node from |
| 562 | * \param node Node to get position of |
| 563 | * \return node's y position |
| 564 | */ |
| 565 | static int treeview_node_y( |
| 566 | const treeview *tree, |
| 567 | const treeview_node *node) |
| 568 | { |
| 569 | treeview_node *n; |
| 570 | int y = treeview__get_search_height(tree); |
| 571 | |
| 572 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 572, __extension__ __PRETTY_FUNCTION__ )); |
| 573 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 573, __extension__ __PRETTY_FUNCTION__)); |
| 574 | |
| 575 | n = treeview_node_next(tree->root, false0); |
| 576 | |
| 577 | while (n != NULL((void*)0) && n != node) { |
| 578 | y += (n->type == TREE_NODE_ENTRY) ? |
| 579 | n->height : tree_g.line_height; |
| 580 | |
| 581 | n = treeview_node_next(n, false0); |
| 582 | } |
| 583 | |
| 584 | return y; |
| 585 | } |
| 586 | |
| 587 | |
| 588 | /** |
| 589 | * Corewindow callback_wrapper: Scroll to make node visible |
| 590 | * |
| 591 | * \param[in] tree The treeview to scroll. |
| 592 | * \param[in] node The treeview node to scroll to visibility. |
| 593 | */ |
| 594 | static inline void treeview__cw_scroll_to_node( |
| 595 | const struct treeview *tree, |
| 596 | const struct treeview_node *node) |
| 597 | { |
| 598 | struct rect r = { |
| 599 | .x0 = 0, |
| 600 | .y0 = treeview_node_y(tree, node), |
| 601 | .x1 = 1, |
| 602 | .y1 = (((node != NULL((void*)0)) && (node->type == TREE_NODE_ENTRY)) ? |
| 603 | node->height : tree_g.line_height), |
| 604 | }; |
| 605 | |
| 606 | r.y1 += r.y0; /* Apply the Y offset to the second Y coordinate */ |
| 607 | |
| 608 | cw_helper_scroll_visible(tree->cw_h, &r); |
| 609 | } |
| 610 | |
| 611 | |
| 612 | /** |
| 613 | * Redraw tree from given node to the bottom. |
| 614 | * |
| 615 | * \param[in] tree Tree to redraw from node in. |
| 616 | * \param[in] node Node to redraw from. |
| 617 | */ |
| 618 | static void treeview__redraw_from_node( |
| 619 | const treeview *tree, |
| 620 | const treeview_node *node) |
| 621 | { |
| 622 | struct rect r = { |
| 623 | .x0 = 0, |
| 624 | .y0 = treeview_node_y(tree, node), |
| 625 | .x1 = REDRAW_MAX8000, |
| 626 | .y1 = treeview__get_display_height(tree) + |
| 627 | treeview__get_search_height(tree), |
| 628 | }; |
| 629 | |
| 630 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 630, __extension__ __PRETTY_FUNCTION__ )); |
| 631 | |
| 632 | treeview__cw_invalidate_area(tree, &r); |
| 633 | } |
| 634 | |
| 635 | |
| 636 | /** |
| 637 | * The treeview walk mode. Controls which nodes are visited in a walk. |
| 638 | */ |
| 639 | enum treeview_walk_mode { |
| 640 | /** |
| 641 | * Walk to all nodes in the (sub)tree. |
| 642 | */ |
| 643 | TREEVIEW_WALK_MODE_LOGICAL_COMPLETE, |
| 644 | |
| 645 | /** |
| 646 | * Walk to expanded nodes in the (sub)tree only. Children of |
| 647 | * collapsed nodes are not visited. |
| 648 | */ |
| 649 | TREEVIEW_WALK_MODE_LOGICAL_EXPANDED, |
| 650 | |
| 651 | /** |
| 652 | * Walk displayed nodes. This differs from the |
| 653 | * `TREEVIEW_WALK_MODE_LOGICAL_EXPANDED` mode when there is |
| 654 | * an active search filter display. |
| 655 | */ |
| 656 | TREEVIEW_WALK_MODE_DISPLAY, |
| 657 | }; |
| 658 | |
| 659 | |
| 660 | /** |
| 661 | * Walk a treeview subtree, calling a callback at each node (depth first) |
| 662 | * |
| 663 | * \param tree Treeview being walked. |
| 664 | * \param root Root to walk tree from (doesn't get a callback call) |
| 665 | * \param mode The treeview walk mode to use. |
| 666 | * \param callback_bwd Function to call on each node in backwards order |
| 667 | * \param callback_fwd Function to call on each node in forwards order |
| 668 | * \param ctx Context to pass to callback |
| 669 | * \return NSERROR_OK on success, or appropriate error otherwise |
| 670 | * |
| 671 | * \note Any node deletion must happen in callback_bwd. |
| 672 | */ |
| 673 | static nserror treeview_walk_internal( |
| 674 | treeview *tree, |
| 675 | treeview_node *root, |
| 676 | enum treeview_walk_mode mode, |
| 677 | nserror (*callback_bwd)( |
| 678 | treeview_node *n, |
| 679 | void *ctx, |
| 680 | bool_Bool *end), |
| 681 | nserror (*callback_fwd)( |
| 682 | treeview_node *n, |
| 683 | void *ctx, |
| 684 | bool_Bool *skip_children, |
| 685 | bool_Bool *end), |
| 686 | void *ctx) |
| 687 | { |
| 688 | treeview_node *node, *child, *parent, *next_sibling; |
| 689 | bool_Bool walking_search = (mode == TREEVIEW_WALK_MODE_DISPLAY && |
| 690 | tree->search.search == true1); |
| 691 | bool_Bool skip_children = false0; |
| 692 | bool_Bool abort = false0; |
| 693 | bool_Bool full = false0; |
| 694 | nserror err; |
| 695 | bool_Bool entry; |
| 696 | |
| 697 | assert(root != NULL)((root != ((void*)0)) ? (void) (0) : __assert_fail ("root != NULL" , "desktop/treeview.c", 697, __extension__ __PRETTY_FUNCTION__ )); |
| 698 | |
| 699 | if (mode == TREEVIEW_WALK_MODE_LOGICAL_COMPLETE || walking_search) { |
| 700 | /* We need to visit children of collapsed folders. */ |
| 701 | full = true1; |
| 702 | } |
| 703 | |
| 704 | node = root; |
| 705 | parent = node->parent; |
| 706 | next_sibling = node->next_sib; |
| 707 | child = (full || (node->flags & TV_NFLAGS_EXPANDED)) ? |
| 708 | node->children : NULL((void*)0); |
| 709 | |
| 710 | while (node != NULL((void*)0)) { |
| 711 | |
| 712 | if (child != NULL((void*)0) && !skip_children) { |
| 713 | /* Down to children */ |
| 714 | node = child; |
| 715 | } else { |
| 716 | /* No children. As long as we're not at the root, |
| 717 | * go to next sibling if present, or nearest ancestor |
| 718 | * with a next sibling. */ |
| 719 | |
| 720 | while (node != root && next_sibling == NULL((void*)0)) { |
| 721 | entry = (node->type == TREE_NODE_ENTRY); |
| 722 | if (callback_bwd != NULL((void*)0) && |
| 723 | (entry || !walking_search)) { |
| 724 | /* Backwards callback */ |
| 725 | err = callback_bwd(node, ctx, &abort); |
| 726 | |
| 727 | if (err != NSERROR_OK) { |
| 728 | return err; |
| 729 | |
| 730 | } else if (abort) { |
| 731 | /* callback requested early |
| 732 | * termination */ |
| 733 | return NSERROR_OK; |
| 734 | } |
| 735 | } |
| 736 | node = parent; |
| 737 | parent = node->parent; |
| 738 | next_sibling = node->next_sib; |
| 739 | } |
| 740 | |
| 741 | if (node == root) |
| 742 | break; |
| 743 | |
| 744 | if (callback_bwd != NULL((void*)0)) { |
| 745 | /* Backwards callback */ |
| 746 | err = callback_bwd(node, ctx, &abort); |
| 747 | |
| 748 | if (err != NSERROR_OK) { |
| 749 | return err; |
| 750 | |
| 751 | } else if (abort) { |
| 752 | /* callback requested early |
| 753 | * termination */ |
| 754 | return NSERROR_OK; |
| 755 | } |
| 756 | } |
| 757 | node = next_sibling; |
| 758 | } |
| 759 | |
| 760 | assert(node != NULL)((node != ((void*)0)) ? (void) (0) : __assert_fail ("node != NULL" , "desktop/treeview.c", 760, __extension__ __PRETTY_FUNCTION__ )); |
| 761 | assert(node != root)((node != root) ? (void) (0) : __assert_fail ("node != root", "desktop/treeview.c", 761, __extension__ __PRETTY_FUNCTION__ )); |
| 762 | |
| 763 | entry = (node->type == TREE_NODE_ENTRY); |
| 764 | |
| 765 | parent = node->parent; |
| 766 | next_sibling = node->next_sib; |
| 767 | child = (full || (node->flags & TV_NFLAGS_EXPANDED)) ? |
| 768 | node->children : NULL((void*)0); |
| 769 | |
| 770 | if (walking_search && (!entry || |
| 771 | !(node->flags & TV_NFLAGS_MATCHED))) { |
| 772 | continue; |
| 773 | } |
| 774 | |
| 775 | if (callback_fwd != NULL((void*)0)) { |
| 776 | /* Forwards callback */ |
| 777 | err = callback_fwd(node, ctx, &skip_children, &abort); |
| 778 | |
| 779 | if (err != NSERROR_OK) { |
| 780 | return err; |
| 781 | |
| 782 | } else if (abort) { |
| 783 | /* callback requested early termination */ |
| 784 | return NSERROR_OK; |
| 785 | } |
| 786 | } |
| 787 | } |
| 788 | return NSERROR_OK; |
| 789 | } |
| 790 | |
| 791 | |
| 792 | /** |
| 793 | * Data used when doing a treeview walk for search. |
| 794 | */ |
| 795 | struct treeview_search_walk_data { |
| 796 | treeview *tree; /**< The treeview to search. */ |
| 797 | const char *text; /**< The string being searched for. */ |
| 798 | const unsigned int len; /**< Length of string being searched for. */ |
| 799 | int window_height; /**< Accumulate height for matching entries. */ |
| 800 | }; |
| 801 | |
| 802 | |
| 803 | /** |
| 804 | * Treewalk node callback for handling search. |
| 805 | * |
| 806 | * \param[in] n Current node. |
| 807 | * \param[in] ctx Treeview search context. |
| 808 | * \param[in,out] skip_children Flag to allow children to be skipped. |
| 809 | * \param[in,out] end Flag to allow iteration to be finished early. |
| 810 | * \return NSERROR_OK on success else error code. |
| 811 | */ |
| 812 | static nserror treeview__search_walk_cb( |
| 813 | treeview_node *n, |
| 814 | void *ctx, |
| 815 | bool_Bool *skip_children, |
| 816 | bool_Bool *end) |
| 817 | { |
| 818 | struct treeview_search_walk_data *sw = ctx; |
| 819 | |
| 820 | if (n->type != TREE_NODE_ENTRY) { |
| 821 | return NSERROR_OK; |
| 822 | } |
| 823 | |
| 824 | if (sw->len == 0) { |
| 825 | n->flags &= ~TV_NFLAGS_MATCHED; |
| 826 | } else { |
| 827 | struct treeview_node_entry *entry = |
| 828 | (struct treeview_node_entry *)n; |
| 829 | bool_Bool matched = false0; |
| 830 | |
| 831 | for (int i = 0; i < sw->tree->n_fields; i++) { |
| 832 | struct treeview_field *ef = &(sw->tree->fields[i + 1]); |
| 833 | if (ef->flags & TREE_FLAG_SEARCHABLE) { |
| 834 | if (strcasestr(entry->fields[i].value.data, |
| 835 | sw->text) != NULL((void*)0)) { |
| 836 | matched = true1; |
| 837 | break; |
| 838 | } |
| 839 | } |
| 840 | } |
| 841 | |
| 842 | if (!matched && strcasestr(n->text.data, sw->text) != NULL((void*)0)) { |
| 843 | matched = true1; |
| 844 | } |
| 845 | |
| 846 | if (matched) { |
| 847 | n->flags |= TV_NFLAGS_MATCHED; |
| 848 | sw->window_height += n->height; |
| 849 | } else { |
| 850 | n->flags &= ~TV_NFLAGS_MATCHED; |
| 851 | } |
| 852 | } |
| 853 | |
| 854 | return NSERROR_OK; |
| 855 | } |
| 856 | |
| 857 | |
| 858 | /** |
| 859 | * Search treeview for text. |
| 860 | * |
| 861 | * \param[in] tree Treeview to search. |
| 862 | * \param[in] text UTF-8 string to search for. (NULL-terminated.) |
| 863 | * \param[in] len Byte length of UTF-8 string. |
| 864 | * \return NSERROR_OK on success, appropriate error otherwise. |
| 865 | */ |
| 866 | static nserror treeview__search( |
| 867 | treeview *tree, |
| 868 | const char *text, |
| 869 | unsigned int len) |
| 870 | { |
| 871 | nserror err; |
| 872 | uint32_t height; |
| 873 | uint32_t prev_height = treeview__get_display_height(tree); |
| 874 | int search_height = treeview__get_search_height(tree); |
| 875 | struct treeview_search_walk_data sw = { |
| 876 | .len = len, |
| 877 | .text = text, |
| 878 | .tree = tree, |
| 879 | .window_height = 0, |
| 880 | }; |
| 881 | struct rect r = { |
| 882 | .x0 = 0, |
| 883 | .y0 = search_height, |
| 884 | .x1 = REDRAW_MAX8000, |
| 885 | }; |
| 886 | |
| 887 | assert(text[len] == '\0')((text[len] == '\0') ? (void) (0) : __assert_fail ("text[len] == '\\0'" , "desktop/treeview.c", 887, __extension__ __PRETTY_FUNCTION__ )); |
| 888 | |
| 889 | if (tree->root == NULL((void*)0)) { |
| 890 | return NSERROR_OK; |
| 891 | } |
| 892 | |
| 893 | err = treeview_walk_internal(tree, tree->root, |
| 894 | TREEVIEW_WALK_MODE_LOGICAL_COMPLETE, NULL((void*)0), |
| 895 | treeview__search_walk_cb, &sw); |
| 896 | if (err != NSERROR_OK) { |
| 897 | return err; |
| 898 | } |
| 899 | |
| 900 | if (len > 0) { |
| 901 | tree->search.height = sw.window_height; |
| 902 | tree->search.search = true1; |
| 903 | height = sw.window_height; |
| 904 | } else { |
| 905 | tree->search.search = false0; |
| 906 | height = tree->root->height; |
| 907 | } |
| 908 | |
| 909 | r.y1 = ((height > prev_height) ? height : prev_height) + search_height; |
| 910 | treeview__cw_invalidate_area(tree, &r); |
| 911 | treeview__cw_update_size(tree, -1, height); |
| 912 | treeview__cw_scroll_top(tree); |
| 913 | |
| 914 | return NSERROR_OK; |
| 915 | } |
| 916 | |
| 917 | |
| 918 | /** |
| 919 | * Cancel a treeview search, optionally droping focus from search widget. |
| 920 | * |
| 921 | * \param[in] tree Treeview to cancel search in. |
| 922 | * \param[in] drop_focus Iff true, drop input focus from search widget. |
| 923 | */ |
| 924 | static void treeview__search_cancel(treeview *tree, bool_Bool drop_focus) |
| 925 | { |
| 926 | struct rect r = { |
| 927 | .x0 = tree_g.window_padding + tree_g.icon_size, |
| 928 | .x1 = 600, |
| 929 | .y0 = 0, |
| 930 | .y1 = tree_g.line_height, |
| 931 | }; |
| 932 | |
| 933 | tree->search.search = false0; |
| 934 | if (tree->search.active == false0) { |
| 935 | return; |
| 936 | } |
| 937 | |
| 938 | if (textarea_get_text(tree->search.textarea, NULL((void*)0), 0) == 1) { |
| 939 | // If there's no text in the search box, we drop focus on a |
| 940 | // cancel. Note '1' because it includes the trailing \0 |
| 941 | drop_focus = true1; |
| 942 | } |
| 943 | |
| 944 | if (drop_focus) { |
| 945 | tree->search.active = false0; |
| 946 | textarea_set_caret(tree->search.textarea, -1); |
| 947 | } else { |
| 948 | textarea_set_caret(tree->search.textarea, 0); |
| 949 | } |
| 950 | |
| 951 | textarea_set_text(tree->search.textarea, ""); |
| 952 | treeview__cw_invalidate_area(tree, &r); |
| 953 | } |
| 954 | |
| 955 | /** |
| 956 | * Convert from treeview drag to core window drag type. |
| 957 | * |
| 958 | * \param[in] tree A treeview. |
| 959 | * \return Core window drag type. |
| 960 | */ |
| 961 | static core_window_drag_status treeview__get_cw_drag_type( |
| 962 | const treeview *tree) |
| 963 | { |
| 964 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 964, __extension__ __PRETTY_FUNCTION__ )); |
| 965 | |
| 966 | switch (tree->drag.type) { |
| 967 | case TV_DRAG_NONE: |
| 968 | return CORE_WINDOW_DRAG_NONE; |
| 969 | |
| 970 | case TV_DRAG_SELECTION: |
| 971 | return CORE_WINDOW_DRAG_SELECTION; |
| 972 | |
| 973 | case TV_DRAG_TEXTAREA: /* Fall through.*/ |
| 974 | case TV_DRAG_SEARCH: |
| 975 | return CORE_WINDOW_DRAG_TEXT_SELECTION; |
| 976 | |
| 977 | case TV_DRAG_MOVE: |
| 978 | return CORE_WINDOW_DRAG_MOVE; |
| 979 | } |
| 980 | |
| 981 | return CORE_WINDOW_DRAG_NONE; |
| 982 | } |
| 983 | |
| 984 | /** |
| 985 | * Callback for textarea_create, in desktop/treeview.h |
| 986 | * |
| 987 | * \param data treeview context |
| 988 | * \param msg textarea message |
| 989 | */ |
| 990 | static void treeview_textarea_search_callback(void *data, |
| 991 | struct textarea_msg *msg) |
| 992 | { |
| 993 | treeview *tree = data; |
| 994 | struct rect *r; |
| 995 | |
| 996 | if (tree->search.active == false0 || tree->root == NULL((void*)0)) { |
| 997 | return; |
| 998 | } |
| 999 | |
| 1000 | switch (msg->type) { |
| 1001 | case TEXTAREA_MSG_DRAG_REPORT: |
| 1002 | if (msg->data.drag == TEXTAREA_DRAG_NONE) { |
| 1003 | /* Textarea drag finished */ |
| 1004 | tree->drag.type = TV_DRAG_NONE; |
| 1005 | } else { |
| 1006 | /* Textarea drag started */ |
| 1007 | tree->drag.type = TV_DRAG_SEARCH; |
| 1008 | } |
| 1009 | treeview__cw_drag_status(tree, |
| 1010 | treeview__get_cw_drag_type(tree)); |
| 1011 | break; |
| 1012 | |
| 1013 | case TEXTAREA_MSG_REDRAW_REQUEST: |
| 1014 | r = &msg->data.redraw; |
| 1015 | r->x0 += tree_g.window_padding + tree_g.icon_size; |
| 1016 | r->y0 += 0; |
| 1017 | r->x1 += 600; |
| 1018 | r->y1 += tree_g.line_height; |
| 1019 | |
| 1020 | /* Redraw the textarea */ |
| 1021 | treeview__cw_invalidate_area(tree, r); |
| 1022 | break; |
| 1023 | |
| 1024 | case TEXTAREA_MSG_TEXT_MODIFIED: |
| 1025 | /* Textarea length includes trailing NULL, so subtract it. */ |
| 1026 | treeview__search(tree, |
| 1027 | msg->data.modified.text, |
| 1028 | msg->data.modified.len - 1); |
| 1029 | break; |
| 1030 | |
| 1031 | default: |
| 1032 | break; |
| 1033 | } |
| 1034 | } |
| 1035 | |
| 1036 | |
| 1037 | /** |
| 1038 | * Update the layout for any active search. |
| 1039 | * |
| 1040 | * \param[in] tree The tree to update. |
| 1041 | */ |
| 1042 | static void treeview__search_update_display( |
| 1043 | treeview *tree) |
| 1044 | { |
| 1045 | const char *string; |
| 1046 | unsigned int len; |
| 1047 | |
| 1048 | if (tree->search.search == false0) { |
| 1049 | /* No active search to update view for. */ |
| 1050 | return; |
| 1051 | } |
| 1052 | |
| 1053 | string = textarea_data(tree->search.textarea, &len); |
| 1054 | if (string == NULL((void*)0) || len == 0) { |
| 1055 | return; |
| 1056 | } |
| 1057 | |
| 1058 | treeview__search(tree, string, len - 1); |
| 1059 | } |
| 1060 | |
| 1061 | |
| 1062 | /** |
| 1063 | * Create treeview's root node |
| 1064 | * |
| 1065 | * \param[out] root Returns root node |
| 1066 | * \return NSERROR_OK on success, appropriate error otherwise |
| 1067 | */ |
| 1068 | static nserror treeview_create_node_root(treeview_node **root) |
| 1069 | { |
| 1070 | treeview_node *n; |
| 1071 | |
| 1072 | n = malloc(sizeof(struct treeview_node)); |
| 1073 | if (n == NULL((void*)0)) { |
| 1074 | return NSERROR_NOMEM; |
| 1075 | } |
| 1076 | |
| 1077 | n->flags = TV_NFLAGS_EXPANDED; |
| 1078 | n->type = TREE_NODE_ROOT; |
| 1079 | |
| 1080 | n->height = 0; |
| 1081 | n->inset = tree_g.window_padding - tree_g.step_width; |
| 1082 | |
| 1083 | n->text.data = NULL((void*)0); |
| 1084 | n->text.len = 0; |
| 1085 | n->text.width = 0; |
| 1086 | |
| 1087 | n->parent = NULL((void*)0); |
| 1088 | n->next_sib = NULL((void*)0); |
| 1089 | n->prev_sib = NULL((void*)0); |
| 1090 | n->children = NULL((void*)0); |
| 1091 | |
| 1092 | n->client_data = NULL((void*)0); |
| 1093 | |
| 1094 | *root = n; |
| 1095 | |
| 1096 | return NSERROR_OK; |
| 1097 | } |
| 1098 | |
| 1099 | |
| 1100 | /** |
| 1101 | * Set a node's inset from its parent |
| 1102 | * |
| 1103 | * This may be used as treeview walk callback |
| 1104 | * |
| 1105 | * \param[in] n node to set inset on |
| 1106 | * \param[in] ctx context unused |
| 1107 | * \param[out] skip_children set to false so child nodes are not skipped. |
| 1108 | * \param[out] end unused flag so treewalk in not terminated early. |
| 1109 | */ |
| 1110 | static nserror |
| 1111 | treeview_set_inset_from_parent(treeview_node *n, |
| 1112 | void *ctx, |
| 1113 | bool_Bool *skip_children, |
| 1114 | bool_Bool *end) |
| 1115 | { |
| 1116 | if (n->parent != NULL((void*)0)) |
| 1117 | n->inset = n->parent->inset + tree_g.step_width; |
| 1118 | |
| 1119 | *skip_children = false0; |
| 1120 | return NSERROR_OK; |
| 1121 | } |
| 1122 | |
| 1123 | |
| 1124 | /** |
| 1125 | * Insert a treeview node into a treeview |
| 1126 | * |
| 1127 | * \param tree the treeview to insert node into. |
| 1128 | * \param a parentless node to insert |
| 1129 | * \param b tree node to insert a as a relation of |
| 1130 | * \param rel The relationship between \a a and \a b |
| 1131 | */ |
| 1132 | static inline void |
| 1133 | treeview_insert_node( |
| 1134 | treeview *tree, |
| 1135 | treeview_node *a, |
| 1136 | treeview_node *b, |
| 1137 | enum treeview_relationship rel) |
| 1138 | { |
| 1139 | assert(a != NULL)((a != ((void*)0)) ? (void) (0) : __assert_fail ("a != NULL", "desktop/treeview.c", 1139, __extension__ __PRETTY_FUNCTION__ )); |
| 1140 | assert(a->parent == NULL)((a->parent == ((void*)0)) ? (void) (0) : __assert_fail ("a->parent == NULL" , "desktop/treeview.c", 1140, __extension__ __PRETTY_FUNCTION__ )); |
| 1141 | assert(b != NULL)((b != ((void*)0)) ? (void) (0) : __assert_fail ("b != NULL", "desktop/treeview.c", 1141, __extension__ __PRETTY_FUNCTION__ )); |
| 1142 | |
| 1143 | switch (rel) { |
| 1144 | case TREE_REL_FIRST_CHILD: |
| 1145 | assert(b->type != TREE_NODE_ENTRY)((b->type != TREE_NODE_ENTRY) ? (void) (0) : __assert_fail ("b->type != TREE_NODE_ENTRY", "desktop/treeview.c", 1145 , __extension__ __PRETTY_FUNCTION__)); |
| 1146 | a->parent = b; |
| 1147 | a->next_sib = b->children; |
| 1148 | if (a->next_sib) |
| 1149 | a->next_sib->prev_sib = a; |
| 1150 | b->children = a; |
| 1151 | break; |
| 1152 | |
| 1153 | case TREE_REL_NEXT_SIBLING: |
| 1154 | assert(b->type != TREE_NODE_ROOT)((b->type != TREE_NODE_ROOT) ? (void) (0) : __assert_fail ( "b->type != TREE_NODE_ROOT", "desktop/treeview.c", 1154, __extension__ __PRETTY_FUNCTION__)); |
| 1155 | a->prev_sib = b; |
| 1156 | a->next_sib = b->next_sib; |
| 1157 | a->parent = b->parent; |
| 1158 | b->next_sib = a; |
| 1159 | if (a->next_sib) |
| 1160 | a->next_sib->prev_sib = a; |
| 1161 | break; |
| 1162 | |
| 1163 | default: |
| 1164 | assert(0)((0) ? (void) (0) : __assert_fail ("0", "desktop/treeview.c", 1164, __extension__ __PRETTY_FUNCTION__)); |
| 1165 | break; |
| 1166 | } |
| 1167 | |
| 1168 | assert(a->parent != NULL)((a->parent != ((void*)0)) ? (void) (0) : __assert_fail ("a->parent != NULL" , "desktop/treeview.c", 1168, __extension__ __PRETTY_FUNCTION__ )); |
| 1169 | |
| 1170 | a->inset = a->parent->inset + tree_g.step_width; |
| 1171 | if (a->children != NULL((void*)0)) { |
| 1172 | treeview_walk_internal(tree, a, |
| 1173 | TREEVIEW_WALK_MODE_LOGICAL_COMPLETE, NULL((void*)0), |
| 1174 | treeview_set_inset_from_parent, NULL((void*)0)); |
| 1175 | } |
| 1176 | |
| 1177 | if (a->parent->flags & TV_NFLAGS_EXPANDED) { |
| 1178 | int height = a->height; |
| 1179 | /* Parent is expanded, so inserted node will be visible and |
| 1180 | * affect layout */ |
| 1181 | if (a->text.width == 0) { |
| 1182 | guit->layout->width(&plot_style_odd.text, |
| 1183 | a->text.data, |
| 1184 | a->text.len, |
| 1185 | &(a->text.width)); |
| 1186 | } |
| 1187 | |
| 1188 | do { |
| 1189 | a->parent->height += height; |
| 1190 | a = a->parent; |
| 1191 | } while (a->parent != NULL((void*)0)); |
| 1192 | } |
| 1193 | } |
| 1194 | |
| 1195 | |
| 1196 | /* Exported interface, documented in treeview.h */ |
| 1197 | nserror |
| 1198 | treeview_create_node_folder(treeview *tree, |
| 1199 | treeview_node **folder, |
| 1200 | treeview_node *relation, |
| 1201 | enum treeview_relationship rel, |
| 1202 | const struct treeview_field_data *field, |
| 1203 | void *data, |
| 1204 | treeview_node_options_flags flags) |
| 1205 | { |
| 1206 | treeview_node *n; |
| 1207 | |
| 1208 | assert(data != NULL)((data != ((void*)0)) ? (void) (0) : __assert_fail ("data != NULL" , "desktop/treeview.c", 1208, __extension__ __PRETTY_FUNCTION__ )); |
| 1209 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 1209, __extension__ __PRETTY_FUNCTION__ )); |
| 1210 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 1210, __extension__ __PRETTY_FUNCTION__)); |
| 1211 | |
| 1212 | if (relation == NULL((void*)0)) { |
| 1213 | relation = tree->root; |
| 1214 | rel = TREE_REL_FIRST_CHILD; |
| 1215 | } |
| 1216 | |
| 1217 | n = malloc(sizeof(struct treeview_node)); |
| 1218 | if (n == NULL((void*)0)) { |
| 1219 | return NSERROR_NOMEM; |
| 1220 | } |
| 1221 | |
| 1222 | n->flags = (flags & TREE_OPTION_SPECIAL_DIR) ? |
| 1223 | TV_NFLAGS_SPECIAL : TV_NFLAGS_NONE; |
| 1224 | n->type = TREE_NODE_FOLDER; |
| 1225 | |
| 1226 | n->height = tree_g.line_height; |
| 1227 | |
| 1228 | n->text.data = field->value; |
| 1229 | n->text.len = field->value_len; |
| 1230 | n->text.width = 0; |
| 1231 | |
| 1232 | n->parent = NULL((void*)0); |
| 1233 | n->next_sib = NULL((void*)0); |
| 1234 | n->prev_sib = NULL((void*)0); |
| 1235 | n->children = NULL((void*)0); |
| 1236 | |
| 1237 | n->client_data = data; |
| 1238 | |
| 1239 | treeview_insert_node(tree, n, relation, rel); |
| 1240 | |
| 1241 | if (n->parent->flags & TV_NFLAGS_EXPANDED) { |
| 1242 | /* Inform front end of change in dimensions */ |
| 1243 | if (!(flags & TREE_OPTION_SUPPRESS_RESIZE)) |
| 1244 | treeview__cw_update_size(tree, -1, |
| 1245 | tree->root->height); |
| 1246 | |
| 1247 | /* Redraw */ |
| 1248 | if (!(flags & TREE_OPTION_SUPPRESS_REDRAW)) { |
| 1249 | struct rect r; |
| 1250 | r.x0 = 0; |
| 1251 | r.y0 = treeview_node_y(tree, n); |
| 1252 | r.x1 = REDRAW_MAX8000; |
| 1253 | r.y1 = tree->root->height; |
| 1254 | treeview__cw_invalidate_area(tree, &r); |
| 1255 | } |
| 1256 | } |
| 1257 | |
| 1258 | *folder = n; |
| 1259 | |
| 1260 | return NSERROR_OK; |
| 1261 | } |
| 1262 | |
| 1263 | |
| 1264 | /* Exported interface, documented in treeview.h */ |
| 1265 | nserror |
| 1266 | treeview_update_node_folder(treeview *tree, |
| 1267 | treeview_node *folder, |
| 1268 | const struct treeview_field_data *field, |
| 1269 | void *data) |
| 1270 | { |
| 1271 | bool_Bool match; |
| 1272 | |
| 1273 | assert(data != NULL)((data != ((void*)0)) ? (void) (0) : __assert_fail ("data != NULL" , "desktop/treeview.c", 1273, __extension__ __PRETTY_FUNCTION__ )); |
| 1274 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 1274, __extension__ __PRETTY_FUNCTION__ )); |
| 1275 | assert(folder != NULL)((folder != ((void*)0)) ? (void) (0) : __assert_fail ("folder != NULL" , "desktop/treeview.c", 1275, __extension__ __PRETTY_FUNCTION__ )); |
| 1276 | assert(data == folder->client_data)((data == folder->client_data) ? (void) (0) : __assert_fail ("data == folder->client_data", "desktop/treeview.c", 1276 , __extension__ __PRETTY_FUNCTION__)); |
| 1277 | assert(folder->parent != NULL)((folder->parent != ((void*)0)) ? (void) (0) : __assert_fail ("folder->parent != NULL", "desktop/treeview.c", 1277, __extension__ __PRETTY_FUNCTION__)); |
| 1278 | |
| 1279 | assert(field != NULL)((field != ((void*)0)) ? (void) (0) : __assert_fail ("field != NULL" , "desktop/treeview.c", 1279, __extension__ __PRETTY_FUNCTION__ )); |
| 1280 | assert(lwc_string_isequal(tree->fields[tree->n_fields].field,((((*(&match) = ((tree->fields[tree->n_fields].field ) == (field->field))), lwc_error_ok) == lwc_error_ok && match == 1) ? (void) (0) : __assert_fail ("lwc_string_isequal(tree->fields[tree->n_fields].field, field->field, &match) == lwc_error_ok && match == true" , "desktop/treeview.c", 1282, __extension__ __PRETTY_FUNCTION__ )) |
| 1281 | field->field, &match) == lwc_error_ok &&((((*(&match) = ((tree->fields[tree->n_fields].field ) == (field->field))), lwc_error_ok) == lwc_error_ok && match == 1) ? (void) (0) : __assert_fail ("lwc_string_isequal(tree->fields[tree->n_fields].field, field->field, &match) == lwc_error_ok && match == true" , "desktop/treeview.c", 1282, __extension__ __PRETTY_FUNCTION__ )) |
| 1282 | match == true)((((*(&match) = ((tree->fields[tree->n_fields].field ) == (field->field))), lwc_error_ok) == lwc_error_ok && match == 1) ? (void) (0) : __assert_fail ("lwc_string_isequal(tree->fields[tree->n_fields].field, field->field, &match) == lwc_error_ok && match == true" , "desktop/treeview.c", 1282, __extension__ __PRETTY_FUNCTION__ )); |
| 1283 | folder->text.data = field->value; |
| 1284 | folder->text.len = field->value_len; |
| 1285 | folder->text.width = 0; |
| 1286 | |
| 1287 | if (folder->parent->flags & TV_NFLAGS_EXPANDED) { |
| 1288 | /* Text will be seen, get its width */ |
| 1289 | guit->layout->width(&plot_style_odd.text, |
| 1290 | folder->text.data, |
| 1291 | folder->text.len, |
| 1292 | &(folder->text.width)); |
| 1293 | } else { |
| 1294 | /* Just invalidate the width, since it's not needed now */ |
| 1295 | folder->text.width = 0; |
| 1296 | } |
| 1297 | |
| 1298 | /* Redraw */ |
| 1299 | if (folder->parent->flags & TV_NFLAGS_EXPANDED) { |
| 1300 | struct rect r; |
| 1301 | r.x0 = 0; |
| 1302 | r.y0 = treeview_node_y(tree, folder); |
| 1303 | r.x1 = REDRAW_MAX8000; |
| 1304 | r.y1 = r.y0 + tree_g.line_height; |
| 1305 | treeview__cw_invalidate_area(tree, &r); |
| 1306 | } |
| 1307 | |
| 1308 | return NSERROR_OK; |
| 1309 | } |
| 1310 | |
| 1311 | |
| 1312 | /* Exported interface, documented in treeview.h */ |
| 1313 | nserror |
| 1314 | treeview_update_node_entry(treeview *tree, |
| 1315 | treeview_node *entry, |
| 1316 | const struct treeview_field_data fields[], |
| 1317 | void *data) |
| 1318 | { |
| 1319 | bool_Bool match; |
| 1320 | struct treeview_node_entry *e = (struct treeview_node_entry *)entry; |
| 1321 | int i; |
| 1322 | |
| 1323 | assert(data != NULL)((data != ((void*)0)) ? (void) (0) : __assert_fail ("data != NULL" , "desktop/treeview.c", 1323, __extension__ __PRETTY_FUNCTION__ )); |
| 1324 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 1324, __extension__ __PRETTY_FUNCTION__ )); |
| 1325 | assert(entry != NULL)((entry != ((void*)0)) ? (void) (0) : __assert_fail ("entry != NULL" , "desktop/treeview.c", 1325, __extension__ __PRETTY_FUNCTION__ )); |
| 1326 | assert(data == entry->client_data)((data == entry->client_data) ? (void) (0) : __assert_fail ("data == entry->client_data", "desktop/treeview.c", 1326 , __extension__ __PRETTY_FUNCTION__)); |
| 1327 | assert(entry->parent != NULL)((entry->parent != ((void*)0)) ? (void) (0) : __assert_fail ("entry->parent != NULL", "desktop/treeview.c", 1327, __extension__ __PRETTY_FUNCTION__)); |
| 1328 | |
| 1329 | assert(fields != NULL)((fields != ((void*)0)) ? (void) (0) : __assert_fail ("fields != NULL" , "desktop/treeview.c", 1329, __extension__ __PRETTY_FUNCTION__ )); |
| 1330 | assert(fields[0].field != NULL)((fields[0].field != ((void*)0)) ? (void) (0) : __assert_fail ("fields[0].field != NULL", "desktop/treeview.c", 1330, __extension__ __PRETTY_FUNCTION__)); |
| 1331 | assert(lwc_string_isequal(tree->fields[0].field,((((*(&match) = ((tree->fields[0].field) == (fields[0] .field))), lwc_error_ok) == lwc_error_ok && match == 1 ) ? (void) (0) : __assert_fail ("lwc_string_isequal(tree->fields[0].field, fields[0].field, &match) == lwc_error_ok && match == true" , "desktop/treeview.c", 1333, __extension__ __PRETTY_FUNCTION__ )) |
| 1332 | fields[0].field, &match) == lwc_error_ok &&((((*(&match) = ((tree->fields[0].field) == (fields[0] .field))), lwc_error_ok) == lwc_error_ok && match == 1 ) ? (void) (0) : __assert_fail ("lwc_string_isequal(tree->fields[0].field, fields[0].field, &match) == lwc_error_ok && match == true" , "desktop/treeview.c", 1333, __extension__ __PRETTY_FUNCTION__ )) |
| 1333 | match == true)((((*(&match) = ((tree->fields[0].field) == (fields[0] .field))), lwc_error_ok) == lwc_error_ok && match == 1 ) ? (void) (0) : __assert_fail ("lwc_string_isequal(tree->fields[0].field, fields[0].field, &match) == lwc_error_ok && match == true" , "desktop/treeview.c", 1333, __extension__ __PRETTY_FUNCTION__ )); |
| 1334 | entry->text.data = fields[0].value; |
| 1335 | entry->text.len = fields[0].value_len; |
| 1336 | entry->text.width = 0; |
| 1337 | |
| 1338 | if (entry->parent->flags & TV_NFLAGS_EXPANDED) { |
| 1339 | /* Text will be seen, get its width */ |
| 1340 | guit->layout->width(&plot_style_odd.text, |
| 1341 | entry->text.data, |
| 1342 | entry->text.len, |
| 1343 | &(entry->text.width)); |
| 1344 | } else { |
| 1345 | /* Just invalidate the width, since it's not needed now */ |
| 1346 | entry->text.width = 0; |
| 1347 | } |
| 1348 | |
| 1349 | for (i = 1; i < tree->n_fields; i++) { |
| 1350 | assert(fields[i].field != NULL)((fields[i].field != ((void*)0)) ? (void) (0) : __assert_fail ("fields[i].field != NULL", "desktop/treeview.c", 1350, __extension__ __PRETTY_FUNCTION__)); |
| 1351 | assert(lwc_string_isequal(tree->fields[i].field,((((*(&match) = ((tree->fields[i].field) == (fields[i] .field))), lwc_error_ok) == lwc_error_ok && match == 1 ) ? (void) (0) : __assert_fail ("lwc_string_isequal(tree->fields[i].field, fields[i].field, &match) == lwc_error_ok && match == true" , "desktop/treeview.c", 1353, __extension__ __PRETTY_FUNCTION__ )) |
| 1352 | fields[i].field, &match) == lwc_error_ok &&((((*(&match) = ((tree->fields[i].field) == (fields[i] .field))), lwc_error_ok) == lwc_error_ok && match == 1 ) ? (void) (0) : __assert_fail ("lwc_string_isequal(tree->fields[i].field, fields[i].field, &match) == lwc_error_ok && match == true" , "desktop/treeview.c", 1353, __extension__ __PRETTY_FUNCTION__ )) |
| 1353 | match == true)((((*(&match) = ((tree->fields[i].field) == (fields[i] .field))), lwc_error_ok) == lwc_error_ok && match == 1 ) ? (void) (0) : __assert_fail ("lwc_string_isequal(tree->fields[i].field, fields[i].field, &match) == lwc_error_ok && match == true" , "desktop/treeview.c", 1353, __extension__ __PRETTY_FUNCTION__ )); |
| 1354 | |
| 1355 | e->fields[i - 1].value.data = fields[i].value; |
| 1356 | e->fields[i - 1].value.len = fields[i].value_len; |
| 1357 | |
| 1358 | if (entry->flags & TV_NFLAGS_EXPANDED) { |
| 1359 | /* Text will be seen, get its width */ |
| 1360 | guit->layout->width(&plot_style_odd.text, |
| 1361 | e->fields[i - 1].value.data, |
| 1362 | e->fields[i - 1].value.len, |
| 1363 | &(e->fields[i - 1].value.width)); |
| 1364 | } else { |
| 1365 | /* Invalidate the width, since it's not needed yet */ |
| 1366 | e->fields[i - 1].value.width = 0; |
| 1367 | } |
| 1368 | } |
| 1369 | |
| 1370 | treeview__search_update_display(tree); |
| 1371 | |
| 1372 | /* Redraw */ |
| 1373 | if (entry->parent->flags & TV_NFLAGS_EXPANDED) { |
| 1374 | struct rect r; |
| 1375 | r.x0 = 0; |
| 1376 | r.y0 = treeview_node_y(tree, entry); |
| 1377 | r.x1 = REDRAW_MAX8000; |
| 1378 | r.y1 = r.y0 + entry->height; |
| 1379 | treeview__cw_invalidate_area(tree, &r); |
| 1380 | } |
| 1381 | |
| 1382 | return NSERROR_OK; |
| 1383 | } |
| 1384 | |
| 1385 | |
| 1386 | /* Exported interface, documented in treeview.h */ |
| 1387 | nserror |
| 1388 | treeview_create_node_entry(treeview *tree, |
| 1389 | treeview_node **entry, |
| 1390 | treeview_node *relation, |
| 1391 | enum treeview_relationship rel, |
| 1392 | const struct treeview_field_data fields[], |
| 1393 | void *data, |
| 1394 | treeview_node_options_flags flags) |
| 1395 | { |
| 1396 | bool_Bool match; |
| 1397 | struct treeview_node_entry *e; |
| 1398 | treeview_node *n; |
| 1399 | int i; |
| 1400 | |
| 1401 | assert(data != NULL)((data != ((void*)0)) ? (void) (0) : __assert_fail ("data != NULL" , "desktop/treeview.c", 1401, __extension__ __PRETTY_FUNCTION__ )); |
| 1402 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 1402, __extension__ __PRETTY_FUNCTION__ )); |
| 1403 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 1403, __extension__ __PRETTY_FUNCTION__)); |
| 1404 | |
| 1405 | if (relation == NULL((void*)0)) { |
| 1406 | relation = tree->root; |
| 1407 | rel = TREE_REL_FIRST_CHILD; |
| 1408 | } |
| 1409 | |
| 1410 | e = malloc(sizeof(struct treeview_node_entry) + |
| 1411 | (tree->n_fields - 1) * sizeof(struct treeview_field)); |
| 1412 | if (e == NULL((void*)0)) { |
| 1413 | return NSERROR_NOMEM; |
| 1414 | } |
| 1415 | |
| 1416 | |
| 1417 | n = (treeview_node *) e; |
| 1418 | |
| 1419 | n->flags = TV_NFLAGS_NONE; |
| 1420 | n->type = TREE_NODE_ENTRY; |
| 1421 | |
| 1422 | n->height = tree_g.line_height; |
| 1423 | |
| 1424 | assert(fields != NULL)((fields != ((void*)0)) ? (void) (0) : __assert_fail ("fields != NULL" , "desktop/treeview.c", 1424, __extension__ __PRETTY_FUNCTION__ )); |
| 1425 | assert(fields[0].field != NULL)((fields[0].field != ((void*)0)) ? (void) (0) : __assert_fail ("fields[0].field != NULL", "desktop/treeview.c", 1425, __extension__ __PRETTY_FUNCTION__)); |
| 1426 | assert(lwc_string_isequal(tree->fields[0].field,((((*(&match) = ((tree->fields[0].field) == (fields[0] .field))), lwc_error_ok) == lwc_error_ok && match == 1 ) ? (void) (0) : __assert_fail ("lwc_string_isequal(tree->fields[0].field, fields[0].field, &match) == lwc_error_ok && match == true" , "desktop/treeview.c", 1428, __extension__ __PRETTY_FUNCTION__ )) |
| 1427 | fields[0].field, &match) == lwc_error_ok &&((((*(&match) = ((tree->fields[0].field) == (fields[0] .field))), lwc_error_ok) == lwc_error_ok && match == 1 ) ? (void) (0) : __assert_fail ("lwc_string_isequal(tree->fields[0].field, fields[0].field, &match) == lwc_error_ok && match == true" , "desktop/treeview.c", 1428, __extension__ __PRETTY_FUNCTION__ )) |
| 1428 | match == true)((((*(&match) = ((tree->fields[0].field) == (fields[0] .field))), lwc_error_ok) == lwc_error_ok && match == 1 ) ? (void) (0) : __assert_fail ("lwc_string_isequal(tree->fields[0].field, fields[0].field, &match) == lwc_error_ok && match == true" , "desktop/treeview.c", 1428, __extension__ __PRETTY_FUNCTION__ )); |
| 1429 | n->text.data = fields[0].value; |
| 1430 | n->text.len = fields[0].value_len; |
| 1431 | n->text.width = 0; |
| 1432 | |
| 1433 | n->parent = NULL((void*)0); |
| 1434 | n->next_sib = NULL((void*)0); |
| 1435 | n->prev_sib = NULL((void*)0); |
| 1436 | n->children = NULL((void*)0); |
| 1437 | |
| 1438 | n->client_data = data; |
| 1439 | |
| 1440 | for (i = 1; i < tree->n_fields; i++) { |
| 1441 | assert(fields[i].field != NULL)((fields[i].field != ((void*)0)) ? (void) (0) : __assert_fail ("fields[i].field != NULL", "desktop/treeview.c", 1441, __extension__ __PRETTY_FUNCTION__)); |
| 1442 | assert(lwc_string_isequal(tree->fields[i].field,((((*(&match) = ((tree->fields[i].field) == (fields[i] .field))), lwc_error_ok) == lwc_error_ok && match == 1 ) ? (void) (0) : __assert_fail ("lwc_string_isequal(tree->fields[i].field, fields[i].field, &match) == lwc_error_ok && match == true" , "desktop/treeview.c", 1444, __extension__ __PRETTY_FUNCTION__ )) |
| 1443 | fields[i].field, &match) == lwc_error_ok &&((((*(&match) = ((tree->fields[i].field) == (fields[i] .field))), lwc_error_ok) == lwc_error_ok && match == 1 ) ? (void) (0) : __assert_fail ("lwc_string_isequal(tree->fields[i].field, fields[i].field, &match) == lwc_error_ok && match == true" , "desktop/treeview.c", 1444, __extension__ __PRETTY_FUNCTION__ )) |
| 1444 | match == true)((((*(&match) = ((tree->fields[i].field) == (fields[i] .field))), lwc_error_ok) == lwc_error_ok && match == 1 ) ? (void) (0) : __assert_fail ("lwc_string_isequal(tree->fields[i].field, fields[i].field, &match) == lwc_error_ok && match == true" , "desktop/treeview.c", 1444, __extension__ __PRETTY_FUNCTION__ )); |
| 1445 | |
| 1446 | e->fields[i - 1].value.data = fields[i].value; |
| 1447 | e->fields[i - 1].value.len = fields[i].value_len; |
| 1448 | e->fields[i - 1].value.width = 0; |
| 1449 | } |
| 1450 | |
| 1451 | treeview_insert_node(tree, n, relation, rel); |
| 1452 | |
| 1453 | if (n->parent->flags & TV_NFLAGS_EXPANDED) { |
| 1454 | /* Inform front end of change in dimensions */ |
| 1455 | if (!(flags & TREE_OPTION_SUPPRESS_RESIZE)) |
| 1456 | treeview__cw_update_size(tree, -1, |
| 1457 | tree->root->height); |
| 1458 | |
| 1459 | /* Redraw */ |
| 1460 | if (!(flags & TREE_OPTION_SUPPRESS_REDRAW)) { |
| 1461 | struct rect r; |
| 1462 | r.x0 = 0; |
| 1463 | r.y0 = treeview_node_y(tree, n); |
| 1464 | r.x1 = REDRAW_MAX8000; |
| 1465 | r.y1 = tree->root->height; |
| 1466 | treeview__cw_invalidate_area(tree, &r); |
| 1467 | } |
| 1468 | } |
| 1469 | |
| 1470 | treeview__search_update_display(tree); |
| 1471 | |
| 1472 | *entry = n; |
| 1473 | |
| 1474 | return NSERROR_OK; |
| 1475 | } |
| 1476 | |
| 1477 | |
| 1478 | /** |
| 1479 | * Treewalk iterator context |
| 1480 | */ |
| 1481 | struct treeview_walk_ctx { |
| 1482 | treeview_walk_cb enter_cb; |
| 1483 | treeview_walk_cb leave_cb; |
| 1484 | void *ctx; |
| 1485 | enum treeview_node_type type; |
| 1486 | }; |
| 1487 | |
| 1488 | |
| 1489 | /** |
| 1490 | * Treewalk node enter callback. |
| 1491 | * |
| 1492 | * \param n current node |
| 1493 | * \param ctx treewalk context |
| 1494 | * \param skip_children set if child nodes should be skipped |
| 1495 | * \param end set if iteration should end early |
| 1496 | */ |
| 1497 | static nserror |
| 1498 | treeview_walk_fwd_cb(treeview_node *n, |
| 1499 | void *ctx, |
| 1500 | bool_Bool *skip_children, |
| 1501 | bool_Bool *end) |
| 1502 | { |
| 1503 | struct treeview_walk_ctx *tw = ctx; |
| 1504 | |
| 1505 | if (n->type & tw->type) { |
| 1506 | return tw->enter_cb(tw->ctx, n->client_data, n->type, end); |
| 1507 | } |
| 1508 | |
| 1509 | return NSERROR_OK; |
| 1510 | } |
| 1511 | |
| 1512 | |
| 1513 | /** |
| 1514 | * Treewalk node leave callback. |
| 1515 | * |
| 1516 | * \param n current node |
| 1517 | * \param ctx treewalk context |
| 1518 | * \param end set if iteration should end early |
| 1519 | */ |
| 1520 | static nserror treeview_walk_bwd_cb(treeview_node *n, void *ctx, bool_Bool *end) |
| 1521 | { |
| 1522 | struct treeview_walk_ctx *tw = ctx; |
| 1523 | |
| 1524 | if (n->type & tw->type) { |
| 1525 | return tw->leave_cb(tw->ctx, n->client_data, n->type, end); |
| 1526 | } |
| 1527 | |
| 1528 | return NSERROR_OK; |
| 1529 | } |
| 1530 | |
| 1531 | |
| 1532 | /* Exported interface, documented in treeview.h */ |
| 1533 | nserror |
| 1534 | treeview_walk(treeview *tree, |
| 1535 | treeview_node *root, |
| 1536 | treeview_walk_cb enter_cb, |
| 1537 | treeview_walk_cb leave_cb, |
| 1538 | void *ctx, |
| 1539 | enum treeview_node_type type) |
| 1540 | { |
| 1541 | struct treeview_walk_ctx tw = { |
| 1542 | .enter_cb = enter_cb, |
| 1543 | .leave_cb = leave_cb, |
| 1544 | .ctx = ctx, |
| 1545 | .type = type |
| 1546 | }; |
| 1547 | |
| 1548 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 1548, __extension__ __PRETTY_FUNCTION__ )); |
| 1549 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 1549, __extension__ __PRETTY_FUNCTION__)); |
| 1550 | |
| 1551 | if (root == NULL((void*)0)) |
| 1552 | root = tree->root; |
| 1553 | |
| 1554 | return treeview_walk_internal(tree, root, |
| 1555 | TREEVIEW_WALK_MODE_LOGICAL_COMPLETE, |
| 1556 | (leave_cb != NULL((void*)0)) ? treeview_walk_bwd_cb : NULL((void*)0), |
| 1557 | (enter_cb != NULL((void*)0)) ? treeview_walk_fwd_cb : NULL((void*)0), |
| 1558 | &tw); |
| 1559 | } |
| 1560 | |
| 1561 | |
| 1562 | /** |
| 1563 | * Unlink a treeview node |
| 1564 | * |
| 1565 | * \param n Node to unlink |
| 1566 | * \return true iff ancestor heights need to be reduced |
| 1567 | */ |
| 1568 | static inline bool_Bool treeview_unlink_node(treeview_node *n) |
| 1569 | { |
| 1570 | /* Unlink node from tree */ |
| 1571 | if (n->parent != NULL((void*)0) && n->parent->children == n) { |
| 1572 | /* Node is a first child */ |
| 1573 | n->parent->children = n->next_sib; |
| 1574 | |
| 1575 | } else if (n->prev_sib != NULL((void*)0)) { |
| 1576 | /* Node is not first child */ |
| 1577 | n->prev_sib->next_sib = n->next_sib; |
| 1578 | } |
| 1579 | |
| 1580 | if (n->next_sib != NULL((void*)0)) { |
| 1581 | /* Always need to do this */ |
| 1582 | n->next_sib->prev_sib = n->prev_sib; |
| 1583 | } |
| 1584 | |
| 1585 | /* Reduce ancestor heights */ |
| 1586 | if ((n->parent != NULL((void*)0)) && |
| 1587 | (n->parent->flags & TV_NFLAGS_EXPANDED)) { |
| 1588 | return true1; |
| 1589 | } |
| 1590 | |
| 1591 | return false0; |
| 1592 | } |
| 1593 | |
| 1594 | |
| 1595 | /** |
| 1596 | * Cancel the editing of a treeview node |
| 1597 | * |
| 1598 | * \param tree Treeview object to cancel node editing in |
| 1599 | * \param redraw Set true iff redraw of removed textarea area required |
| 1600 | */ |
| 1601 | static void treeview_edit_cancel(treeview *tree, bool_Bool redraw) |
| 1602 | { |
| 1603 | struct rect r; |
| 1604 | |
| 1605 | if (tree->edit.textarea == NULL((void*)0)) |
| 1606 | return; |
| 1607 | |
| 1608 | textarea_destroy(tree->edit.textarea); |
| 1609 | |
| 1610 | tree->edit.textarea = NULL((void*)0); |
| 1611 | tree->edit.node = NULL((void*)0); |
| 1612 | |
| 1613 | if (tree->drag.type == TV_DRAG_TEXTAREA) |
| 1614 | tree->drag.type = TV_DRAG_NONE; |
| 1615 | |
| 1616 | if (redraw) { |
| 1617 | r.x0 = tree->edit.x; |
| 1618 | r.y0 = tree->edit.y; |
| 1619 | r.x1 = tree->edit.x + tree->edit.w; |
| 1620 | r.y1 = tree->edit.y + tree->edit.h; |
| 1621 | treeview__cw_invalidate_area(tree, &r); |
| 1622 | } |
| 1623 | } |
| 1624 | |
| 1625 | |
| 1626 | /** |
| 1627 | * Complete a treeview edit |
| 1628 | * |
| 1629 | * Complete edit by informing the client with a change request msg |
| 1630 | * |
| 1631 | * \param tree Treeview object to complete edit in |
| 1632 | */ |
| 1633 | static void treeview_edit_done(treeview *tree) |
| 1634 | { |
| 1635 | int len, error; |
| 1636 | char* new_text; |
| 1637 | treeview_node *n = tree->edit.node; |
| 1638 | struct treeview_node_msg msg; |
| 1639 | msg.msg = TREE_MSG_NODE_EDIT; |
| 1640 | |
| 1641 | if (tree->edit.textarea == NULL((void*)0)) { |
| 1642 | return; |
| 1643 | } |
| 1644 | |
| 1645 | assert(n != NULL)((n != ((void*)0)) ? (void) (0) : __assert_fail ("n != NULL", "desktop/treeview.c", 1645, __extension__ __PRETTY_FUNCTION__ )); |
| 1646 | |
| 1647 | /* Get new text length */ |
| 1648 | len = textarea_get_text(tree->edit.textarea, NULL((void*)0), 0); |
| 1649 | |
| 1650 | new_text = malloc(len); |
| 1651 | if (new_text == NULL((void*)0)) { |
| 1652 | /* TODO: don't just silently ignore */ |
| 1653 | return; |
| 1654 | } |
| 1655 | |
| 1656 | /* Get the new text from textarea */ |
| 1657 | error = textarea_get_text(tree->edit.textarea, new_text, len); |
| 1658 | if (error == -1) { |
| 1659 | /* TODO: don't just silently ignore */ |
| 1660 | free(new_text); |
| 1661 | return; |
| 1662 | } |
| 1663 | |
| 1664 | /* Inform the treeview client with change request message */ |
| 1665 | msg.data.node_edit.field = tree->edit.field; |
| 1666 | msg.data.node_edit.text = new_text; |
| 1667 | |
| 1668 | switch (n->type) { |
| 1669 | case TREE_NODE_ENTRY: |
| 1670 | tree->callbacks->entry(msg, n->client_data); |
| 1671 | break; |
| 1672 | case TREE_NODE_FOLDER: |
| 1673 | tree->callbacks->folder(msg, n->client_data); |
| 1674 | break; |
| 1675 | case TREE_NODE_ROOT: |
| 1676 | break; |
| 1677 | default: |
| 1678 | break; |
| 1679 | } |
| 1680 | |
| 1681 | /* Finished with the new text */ |
| 1682 | free(new_text); |
| 1683 | |
| 1684 | /* Finally, destroy the treeview, and redraw */ |
| 1685 | treeview_edit_cancel(tree, true1); |
| 1686 | } |
| 1687 | |
| 1688 | |
| 1689 | /** |
| 1690 | * context for treeview node deletion iterator |
| 1691 | */ |
| 1692 | struct treeview_node_delete { |
| 1693 | treeview *tree; |
| 1694 | int h_reduction; |
| 1695 | bool_Bool user_interaction; |
| 1696 | }; |
| 1697 | |
| 1698 | |
| 1699 | /** |
| 1700 | * Treewalk node callback deleting nodes. |
| 1701 | */ |
| 1702 | static nserror |
| 1703 | treeview_delete_node_walk_cb(treeview_node *n, void *ctx, bool_Bool *end) |
| 1704 | { |
| 1705 | struct treeview_node_delete *nd = (struct treeview_node_delete *)ctx; |
| 1706 | struct treeview_node_msg msg; |
| 1707 | |
| 1708 | msg.msg = TREE_MSG_NODE_DELETE; |
| 1709 | msg.data.delete.user = nd->user_interaction; |
| 1710 | |
| 1711 | assert(n->children == NULL)((n->children == ((void*)0)) ? (void) (0) : __assert_fail ( "n->children == NULL", "desktop/treeview.c", 1711, __extension__ __PRETTY_FUNCTION__)); |
| 1712 | |
| 1713 | if (treeview_unlink_node(n)) |
| 1714 | nd->h_reduction += (n->type == TREE_NODE_ENTRY) ? |
| 1715 | n->height : tree_g.line_height; |
| 1716 | |
| 1717 | /* Handle any special treatment */ |
| 1718 | switch (n->type) { |
| 1719 | case TREE_NODE_ENTRY: |
| 1720 | nd->tree->callbacks->entry(msg, n->client_data); |
| 1721 | break; |
| 1722 | |
| 1723 | case TREE_NODE_FOLDER: |
| 1724 | nd->tree->callbacks->folder(msg, n->client_data); |
| 1725 | break; |
| 1726 | |
| 1727 | case TREE_NODE_ROOT: |
| 1728 | break; |
| 1729 | |
| 1730 | default: |
| 1731 | return NSERROR_BAD_PARAMETER; |
| 1732 | } |
| 1733 | |
| 1734 | /* Cancel any edit of this node */ |
| 1735 | if (nd->tree->edit.textarea != NULL((void*)0) && |
| 1736 | nd->tree->edit.node == n) { |
| 1737 | treeview_edit_cancel(nd->tree, false0); |
| 1738 | } |
| 1739 | |
| 1740 | /* Free the node */ |
| 1741 | free(n); |
| 1742 | |
| 1743 | return NSERROR_OK; |
| 1744 | } |
| 1745 | |
| 1746 | |
| 1747 | /** |
| 1748 | * Delete a treeview node |
| 1749 | * |
| 1750 | * Will emit folder or entry deletion msg callback. |
| 1751 | * |
| 1752 | * \note this can be called from inside a treeview_walk fwd callback. |
| 1753 | * For example walking the tree and calling this for any node that's selected. |
| 1754 | * |
| 1755 | * This function does not delete empty nodes, so if TREEVIEW_DEL_EMPTY_DIRS is |
| 1756 | * set, caller must also call treeview_delete_empty. |
| 1757 | * |
| 1758 | * \param tree Treeview object to delete node from |
| 1759 | * \param n Node to delete |
| 1760 | * \param interaction Delete is result of user interaction with treeview |
| 1761 | * \param flags Treeview node options flags |
| 1762 | * \return NSERROR_OK on success, appropriate error otherwise |
| 1763 | */ |
| 1764 | static nserror |
| 1765 | treeview_delete_node_internal(treeview *tree, |
| 1766 | treeview_node *n, |
| 1767 | bool_Bool interaction, |
| 1768 | treeview_node_options_flags flags) |
| 1769 | { |
| 1770 | nserror err; |
| 1771 | treeview_node *p = n->parent; |
| 1772 | struct treeview_node_delete nd = { |
| 1773 | .tree = tree, |
| 1774 | .h_reduction = 0, |
| 1775 | .user_interaction = interaction |
| 1776 | }; |
| 1777 | |
| 1778 | if (interaction && (tree->flags & TREEVIEW_NO_DELETES)) { |
| 1779 | return NSERROR_OK; |
| 1780 | } |
| 1781 | |
| 1782 | /* Delete any children first */ |
| 1783 | err = treeview_walk_internal(tree, n, |
| 1784 | TREEVIEW_WALK_MODE_LOGICAL_COMPLETE, |
| 1785 | treeview_delete_node_walk_cb, NULL((void*)0), &nd); |
| 1786 | if (err != NSERROR_OK) { |
| 1787 | return err; |
| 1788 | } |
| 1789 | |
| 1790 | /* Now delete node */ |
| 1791 | if (n == tree->root) |
| 1792 | tree->root = NULL((void*)0); |
| 1793 | err = treeview_delete_node_walk_cb(n, &nd, false0); |
| 1794 | if (err != NSERROR_OK) { |
| 1795 | return err; |
| 1796 | } |
| 1797 | |
| 1798 | n = p; |
| 1799 | /* Reduce ancestor heights */ |
| 1800 | while (n != NULL((void*)0) && n->flags & TV_NFLAGS_EXPANDED) { |
| 1801 | n->height -= nd.h_reduction; |
| 1802 | n = n->parent; |
| 1803 | } |
| 1804 | |
| 1805 | /* Inform front end of change in dimensions */ |
| 1806 | if (tree->root != NULL((void*)0) && p != NULL((void*)0) && p->flags & TV_NFLAGS_EXPANDED && |
| 1807 | nd.h_reduction > 0 && |
| 1808 | !(flags & TREE_OPTION_SUPPRESS_RESIZE)) { |
| 1809 | treeview__cw_update_size(tree, -1, |
| 1810 | tree->root->height); |
| 1811 | } |
| 1812 | |
| 1813 | treeview__search_update_display(tree); |
| 1814 | |
| 1815 | return NSERROR_OK; |
| 1816 | } |
| 1817 | |
| 1818 | |
| 1819 | /** |
| 1820 | * Delete any empty treeview folder nodes |
| 1821 | * |
| 1822 | * \param tree Treeview object to delete empty nodes from |
| 1823 | * \param interaction Delete is result of user interaction with treeview |
| 1824 | * \return NSERROR_OK on success, appropriate error otherwise |
| 1825 | * |
| 1826 | * Note this must not be called within a treeview_walk. It may delete the |
| 1827 | * walker's 'current' node, making it impossible to move on without invalid |
| 1828 | * reads. |
| 1829 | */ |
| 1830 | static nserror treeview_delete_empty_nodes(treeview *tree, bool_Bool interaction) |
| 1831 | { |
| 1832 | treeview_node *node, *child, *parent, *next_sibling, *p; |
| 1833 | bool_Bool abort = false0; |
| 1834 | nserror err; |
| 1835 | struct treeview_node_delete nd = { |
| 1836 | .tree = tree, |
| 1837 | .h_reduction = 0, |
| 1838 | .user_interaction = interaction |
| 1839 | }; |
| 1840 | |
| 1841 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 1841, __extension__ __PRETTY_FUNCTION__ )); |
| 1842 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 1842, __extension__ __PRETTY_FUNCTION__)); |
| 1843 | |
| 1844 | node = tree->root; |
| 1845 | parent = node->parent; |
| 1846 | next_sibling = node->next_sib; |
| 1847 | child = (node->flags & TV_NFLAGS_EXPANDED) ? node->children : NULL((void*)0); |
| 1848 | |
| 1849 | while (node != NULL((void*)0)) { |
| 1850 | |
| 1851 | if (child != NULL((void*)0)) { |
| 1852 | /* Down to children */ |
| 1853 | node = child; |
| 1854 | } else { |
| 1855 | /* No children. As long as we're not at the root, |
| 1856 | * go to next sibling if present, or nearest ancestor |
| 1857 | * with a next sibling. */ |
| 1858 | |
| 1859 | while (node->parent != NULL((void*)0) && |
| 1860 | next_sibling == NULL((void*)0)) { |
| 1861 | if (node->type == TREE_NODE_FOLDER && |
| 1862 | node->children == NULL((void*)0)) { |
| 1863 | /* Delete node */ |
| 1864 | p = node->parent; |
| 1865 | err = treeview_delete_node_walk_cb( |
| 1866 | node, &nd, &abort); |
| 1867 | if (err != NSERROR_OK) { |
| 1868 | return err; |
| 1869 | } |
| 1870 | |
| 1871 | /* Reduce ancestor heights */ |
| 1872 | while (p != NULL((void*)0) && |
| 1873 | p->flags & |
| 1874 | TV_NFLAGS_EXPANDED) { |
| 1875 | p->height -= nd.h_reduction; |
| 1876 | p = p->parent; |
| 1877 | } |
| 1878 | nd.h_reduction = 0; |
| 1879 | } |
| 1880 | node = parent; |
| 1881 | parent = node->parent; |
| 1882 | next_sibling = node->next_sib; |
| 1883 | } |
| 1884 | |
| 1885 | if (node->parent == NULL((void*)0)) |
| 1886 | break; |
| 1887 | |
| 1888 | if (node->type == TREE_NODE_FOLDER && |
| 1889 | node->children == NULL((void*)0)) { |
| 1890 | /* Delete node */ |
| 1891 | p = node->parent; |
| 1892 | err = treeview_delete_node_walk_cb( |
| 1893 | node, &nd, &abort); |
| 1894 | if (err != NSERROR_OK) { |
| 1895 | return err; |
| 1896 | } |
| 1897 | |
| 1898 | /* Reduce ancestor heights */ |
| 1899 | while (p != NULL((void*)0) && |
| 1900 | p->flags & TV_NFLAGS_EXPANDED) { |
| 1901 | p->height -= nd.h_reduction; |
| 1902 | p = p->parent; |
| 1903 | } |
| 1904 | nd.h_reduction = 0; |
| 1905 | } |
| 1906 | node = next_sibling; |
| 1907 | } |
| 1908 | |
| 1909 | assert(node != NULL)((node != ((void*)0)) ? (void) (0) : __assert_fail ("node != NULL" , "desktop/treeview.c", 1909, __extension__ __PRETTY_FUNCTION__ )); |
| 1910 | assert(node->parent != NULL)((node->parent != ((void*)0)) ? (void) (0) : __assert_fail ("node->parent != NULL", "desktop/treeview.c", 1910, __extension__ __PRETTY_FUNCTION__)); |
| 1911 | |
| 1912 | parent = node->parent; |
| 1913 | next_sibling = node->next_sib; |
| 1914 | child = (node->flags & TV_NFLAGS_EXPANDED) ? |
| 1915 | node->children : NULL((void*)0); |
| 1916 | } |
| 1917 | |
| 1918 | return NSERROR_OK; |
| 1919 | } |
| 1920 | |
| 1921 | |
| 1922 | /* Exported interface, documented in treeview.h */ |
| 1923 | nserror |
| 1924 | treeview_delete_node(treeview *tree, |
| 1925 | treeview_node *n, |
| 1926 | treeview_node_options_flags flags) |
| 1927 | { |
| 1928 | nserror err; |
| 1929 | struct rect r; |
| 1930 | bool_Bool visible; |
| 1931 | |
| 1932 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 1932, __extension__ __PRETTY_FUNCTION__ )); |
| 1933 | assert(n != NULL)((n != ((void*)0)) ? (void) (0) : __assert_fail ("n != NULL", "desktop/treeview.c", 1933, __extension__ __PRETTY_FUNCTION__ )); |
| 1934 | assert(n->parent != NULL)((n->parent != ((void*)0)) ? (void) (0) : __assert_fail ("n->parent != NULL" , "desktop/treeview.c", 1934, __extension__ __PRETTY_FUNCTION__ )); |
| 1935 | |
| 1936 | visible = n->parent->flags & TV_NFLAGS_EXPANDED; |
| 1937 | |
| 1938 | r.y0 = treeview_node_y(tree, n); |
| 1939 | r.y1 = tree->root->height; |
| 1940 | |
| 1941 | err = treeview_delete_node_internal(tree, n, false0, flags); |
| 1942 | if (err != NSERROR_OK) |
| 1943 | return err; |
| 1944 | |
| 1945 | if (tree->flags & TREEVIEW_DEL_EMPTY_DIRS) { |
| 1946 | int h = tree->root->height; |
| 1947 | /* Delete any empty nodes */ |
| 1948 | err = treeview_delete_empty_nodes(tree, false0); |
| 1949 | if (err != NSERROR_OK) |
| 1950 | return err; |
| 1951 | |
| 1952 | /* Inform front end of change in dimensions */ |
| 1953 | if (tree->root->height != h) { |
| 1954 | r.y0 = 0; |
| 1955 | if (!(flags & TREE_OPTION_SUPPRESS_RESIZE)) { |
| 1956 | treeview__cw_update_size(tree, -1, |
| 1957 | tree->root->height); |
| 1958 | } |
| 1959 | } |
| 1960 | } |
| 1961 | |
| 1962 | /* Redraw */ |
| 1963 | if (visible && !(flags & TREE_OPTION_SUPPRESS_REDRAW)) { |
| 1964 | r.x0 = 0; |
| 1965 | r.x1 = REDRAW_MAX8000; |
| 1966 | treeview__cw_invalidate_area(tree, &r); |
| 1967 | } |
| 1968 | |
| 1969 | return NSERROR_OK; |
| 1970 | } |
| 1971 | |
| 1972 | |
| 1973 | /** |
| 1974 | * Helper to create a textarea. |
| 1975 | * |
| 1976 | * \param[in] tree The treeview we're creating the textarea for. |
| 1977 | * \param[in] width The width of the textarea. |
| 1978 | * \param[in] height The height of the textarea. |
| 1979 | * \param[in] border The border colour to use. |
| 1980 | * \param[in] background The background colour to use. |
| 1981 | * \param[in] foreground The foreground colour to use. |
| 1982 | * \param[in] text The text style to use for the text area. |
| 1983 | * \param[in] ta_callback The textarea callback function to give the textarea. |
| 1984 | * \return the textarea pointer on success, or NULL on failure. |
| 1985 | */ |
| 1986 | static struct textarea *treeview__create_textarea( |
| 1987 | treeview *tree, |
| 1988 | int width, |
| 1989 | int height, |
| 1990 | colour border, |
| 1991 | colour background, |
| 1992 | colour foreground, |
| 1993 | plot_font_style_t text, |
| 1994 | textarea_client_callback ta_callback) |
| 1995 | { |
| 1996 | /* Configure the textarea */ |
| 1997 | textarea_flags ta_flags = TEXTAREA_INTERNAL_CARET; |
| 1998 | textarea_setup ta_setup = { |
| 1999 | .text = text, |
| 2000 | .width = width, |
| 2001 | .height = height, |
| 2002 | .pad_top = 0, |
| 2003 | .pad_left = 2, |
| 2004 | .pad_right = 2, |
| 2005 | .pad_bottom = 0, |
| 2006 | .border_width = 1, |
| 2007 | .border_col = border, |
| 2008 | .selected_bg = foreground, |
| 2009 | .selected_text = background, |
| 2010 | }; |
| 2011 | |
| 2012 | ta_setup.text.foreground = foreground; |
| 2013 | ta_setup.text.background = background; |
| 2014 | |
| 2015 | /* Create text area */ |
| 2016 | return textarea_create(ta_flags, &ta_setup, ta_callback, tree); |
| 2017 | } |
| 2018 | |
| 2019 | |
| 2020 | /* Exported interface, documented in treeview.h */ |
| 2021 | nserror |
| 2022 | treeview_create(treeview **treeout, |
| 2023 | const struct treeview_callback_table *callbacks, |
| 2024 | int n_fields, |
| 2025 | struct treeview_field_desc fields[], |
| 2026 | struct core_window *cw, |
| 2027 | treeview_flags flags) |
| 2028 | { |
| 2029 | treeview *tree; |
| 2030 | nserror error; |
| 2031 | int fldidx; |
| 2032 | |
| 2033 | assert(callbacks != NULL)((callbacks != ((void*)0)) ? (void) (0) : __assert_fail ("callbacks != NULL" , "desktop/treeview.c", 2033, __extension__ __PRETTY_FUNCTION__ )); |
| 2034 | |
| 2035 | assert(fields != NULL)((fields != ((void*)0)) ? (void) (0) : __assert_fail ("fields != NULL" , "desktop/treeview.c", 2035, __extension__ __PRETTY_FUNCTION__ )); |
| 2036 | assert(fields[0].flags & TREE_FLAG_DEFAULT)((fields[0].flags & TREE_FLAG_DEFAULT) ? (void) (0) : __assert_fail ("fields[0].flags & TREE_FLAG_DEFAULT", "desktop/treeview.c" , 2036, __extension__ __PRETTY_FUNCTION__)); |
| 2037 | assert(fields[n_fields - 1].flags & TREE_FLAG_DEFAULT)((fields[n_fields - 1].flags & TREE_FLAG_DEFAULT) ? (void ) (0) : __assert_fail ("fields[n_fields - 1].flags & TREE_FLAG_DEFAULT" , "desktop/treeview.c", 2037, __extension__ __PRETTY_FUNCTION__ )); |
| 2038 | assert(n_fields >= 2)((n_fields >= 2) ? (void) (0) : __assert_fail ("n_fields >= 2" , "desktop/treeview.c", 2038, __extension__ __PRETTY_FUNCTION__ )); |
| 2039 | |
| 2040 | tree = malloc(sizeof(struct treeview)); |
| 2041 | if (tree == NULL((void*)0)) { |
| 2042 | return NSERROR_NOMEM; |
| 2043 | } |
| 2044 | |
| 2045 | tree->fields = malloc(sizeof(struct treeview_field) * n_fields); |
| 2046 | if (tree->fields == NULL((void*)0)) { |
| 2047 | free(tree); |
| 2048 | return NSERROR_NOMEM; |
| 2049 | } |
| 2050 | |
| 2051 | error = treeview_create_node_root(&(tree->root)); |
| 2052 | if (error != NSERROR_OK) { |
| 2053 | free(tree->fields); |
| 2054 | free(tree); |
| 2055 | return error; |
| 2056 | } |
| 2057 | |
| 2058 | tree->field_width = 0; |
| 2059 | for (fldidx = 0; fldidx < n_fields; fldidx++) { |
| 2060 | struct treeview_field *f = &(tree->fields[fldidx]); |
| 2061 | |
| 2062 | f->flags = fields[fldidx].flags; |
| 2063 | f->field = lwc_string_ref(fields[fldidx].field)({lwc_string *__lwc_s = (fields[fldidx].field); ((__lwc_s != ( (void*)0)) ? (void) (0) : __assert_fail ("__lwc_s != NULL", "desktop/treeview.c" , 2063, __extension__ __PRETTY_FUNCTION__)); __lwc_s->refcnt ++; __lwc_s;}); |
| 2064 | f->value.data = lwc_string_data(fields[fldidx].field)({((fields[fldidx].field != ((void*)0)) ? (void) (0) : __assert_fail ("fields[fldidx].field != NULL", "desktop/treeview.c", 2064, __extension__ __PRETTY_FUNCTION__)); (const char *)((fields[ fldidx].field)+1);}); |
| 2065 | f->value.len = lwc_string_length(fields[fldidx].field)({((fields[fldidx].field != ((void*)0)) ? (void) (0) : __assert_fail ("fields[fldidx].field != NULL", "desktop/treeview.c", 2065, __extension__ __PRETTY_FUNCTION__)); (fields[fldidx].field)-> len;}); |
| 2066 | |
| 2067 | guit->layout->width(&plot_style_odd.text, |
| 2068 | f->value.data, |
| 2069 | f->value.len, |
| 2070 | &(f->value.width)); |
| 2071 | |
| 2072 | if (f->flags & TREE_FLAG_SHOW_NAME) { |
| 2073 | if (tree->field_width < f->value.width) { |
| 2074 | tree->field_width = f->value.width; |
| 2075 | } |
| 2076 | } |
| 2077 | } |
| 2078 | |
| 2079 | tree->field_width += tree_g.step_width; |
| 2080 | |
| 2081 | tree->callbacks = callbacks; |
| 2082 | tree->n_fields = n_fields - 1; |
| 2083 | |
| 2084 | tree->drag.type = TV_DRAG_NONE; |
| 2085 | tree->drag.start_node = NULL((void*)0); |
| 2086 | tree->drag.start.x = 0; |
| 2087 | tree->drag.start.y = 0; |
| 2088 | tree->drag.start.node_y = 0; |
| 2089 | tree->drag.start.node_h = 0; |
| 2090 | tree->drag.prev.x = 0; |
| 2091 | tree->drag.prev.y = 0; |
| 2092 | tree->drag.prev.node_y = 0; |
| 2093 | tree->drag.prev.node_h = 0; |
| 2094 | |
| 2095 | tree->move.root = NULL((void*)0); |
| 2096 | tree->move.target = NULL((void*)0); |
| 2097 | tree->move.target_pos = TV_TARGET_NONE; |
| 2098 | |
| 2099 | tree->edit.textarea = NULL((void*)0); |
| 2100 | tree->edit.node = NULL((void*)0); |
| 2101 | |
| 2102 | if (flags & TREEVIEW_SEARCHABLE) { |
| 2103 | tree->search.textarea = treeview__create_textarea( |
| 2104 | tree, 600, tree_g.line_height, |
| 2105 | nscolours[NSCOLOUR_TEXT_INPUT_BG], |
| 2106 | nscolours[NSCOLOUR_TEXT_INPUT_BG], |
| 2107 | nscolours[NSCOLOUR_TEXT_INPUT_FG], |
| 2108 | plot_style_odd.text, |
| 2109 | treeview_textarea_search_callback); |
| 2110 | if (tree->search.textarea == NULL((void*)0)) { |
| 2111 | treeview_destroy(tree); |
| 2112 | return NSERROR_NOMEM; |
| 2113 | } |
| 2114 | } else { |
| 2115 | tree->search.textarea = NULL((void*)0); |
| 2116 | } |
| 2117 | tree->search.active = false0; |
| 2118 | tree->search.search = false0; |
| 2119 | |
| 2120 | tree->flags = flags; |
| 2121 | |
| 2122 | tree->cw_h = cw; |
| 2123 | |
| 2124 | *treeout = tree; |
| 2125 | |
| 2126 | return NSERROR_OK; |
| 2127 | } |
| 2128 | |
| 2129 | |
| 2130 | /* Exported interface, documented in treeview.h */ |
| 2131 | nserror |
| 2132 | treeview_cw_attach(treeview *tree, struct core_window *cw) |
| 2133 | { |
| 2134 | assert(cw != NULL)((cw != ((void*)0)) ? (void) (0) : __assert_fail ("cw != NULL" , "desktop/treeview.c", 2134, __extension__ __PRETTY_FUNCTION__ )); |
| 2135 | |
| 2136 | if (tree->cw_h != NULL((void*)0)) { |
| 2137 | NSLOG(netsurf, INFO, "Treeview already attached.")do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_INFO, "desktop/treeview.c", sizeof("desktop/treeview.c" ) - 1, __PRETTY_FUNCTION__, sizeof(__PRETTY_FUNCTION__) - 1, 2137 , }; nslog__log(&_nslog_ctx, "Treeview already attached." ); } } while(0); |
| 2138 | return NSERROR_UNKNOWN; |
| 2139 | } |
| 2140 | tree->cw_h = cw; |
| 2141 | |
| 2142 | return NSERROR_OK; |
| 2143 | } |
| 2144 | |
| 2145 | |
| 2146 | /* Exported interface, documented in treeview.h */ |
| 2147 | nserror treeview_cw_detach(treeview *tree) |
| 2148 | { |
| 2149 | tree->cw_h = NULL((void*)0); |
| 2150 | |
| 2151 | treeview__search_cancel(tree, true1); |
| 2152 | |
| 2153 | return NSERROR_OK; |
| 2154 | } |
| 2155 | |
| 2156 | |
| 2157 | /* Exported interface, documented in treeview.h */ |
| 2158 | nserror treeview_destroy(treeview *tree) |
| 2159 | { |
| 2160 | int f; |
| 2161 | |
| 2162 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 2162, __extension__ __PRETTY_FUNCTION__ )); |
| 2163 | |
| 2164 | if (tree->search.textarea != NULL((void*)0)) { |
| 2165 | tree->search.active = false0; |
| 2166 | tree->search.search = false0; |
| 2167 | textarea_destroy(tree->search.textarea); |
| 2168 | } |
| 2169 | |
| 2170 | /* Destroy nodes */ |
| 2171 | treeview_delete_node_internal(tree, tree->root, false0, |
| 2172 | TREE_OPTION_SUPPRESS_RESIZE | |
| 2173 | TREE_OPTION_SUPPRESS_REDRAW); |
| 2174 | |
| 2175 | /* Destroy feilds */ |
| 2176 | for (f = 0; f <= tree->n_fields; f++) { |
| 2177 | lwc_string_unref(tree->fields[f].field){ lwc_string *__lwc_s = (tree->fields[f].field); ((__lwc_s != ((void*)0)) ? (void) (0) : __assert_fail ("__lwc_s != NULL" , "desktop/treeview.c", 2177, __extension__ __PRETTY_FUNCTION__ )); __lwc_s->refcnt--; if ((__lwc_s->refcnt == 0) || (( __lwc_s->refcnt == 1) && (__lwc_s->insensitive == __lwc_s))) lwc_string_destroy(__lwc_s); }; |
| 2178 | } |
| 2179 | free(tree->fields); |
| 2180 | |
| 2181 | /* Free treeview */ |
| 2182 | free(tree); |
| 2183 | |
| 2184 | return NSERROR_OK; |
| 2185 | } |
| 2186 | |
| 2187 | |
| 2188 | /** |
| 2189 | * Expand a treeview's nodes |
| 2190 | * |
| 2191 | * \param tree Treeview object to expand nodes in |
| 2192 | * \param node The node to expand. |
| 2193 | * \return NSERROR_OK on success, appropriate error otherwise. |
| 2194 | */ |
| 2195 | static nserror |
| 2196 | treeview_node_expand_internal(treeview *tree, treeview_node *node) |
| 2197 | { |
| 2198 | treeview_node *child; |
| 2199 | struct treeview_node_entry *e; |
| 2200 | int additional_height_folders = 0; |
| 2201 | int additional_height_entries = 0; |
| 2202 | int i; |
| 2203 | |
| 2204 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 2204, __extension__ __PRETTY_FUNCTION__ )); |
| 2205 | assert(node != NULL)((node != ((void*)0)) ? (void) (0) : __assert_fail ("node != NULL" , "desktop/treeview.c", 2205, __extension__ __PRETTY_FUNCTION__ )); |
| 2206 | |
| 2207 | if (node->flags & TV_NFLAGS_EXPANDED) { |
| 2208 | /* What madness is this? */ |
| 2209 | NSLOG(netsurf, INFO, "Tried to expand an expanded node.")do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_INFO, "desktop/treeview.c", sizeof("desktop/treeview.c" ) - 1, __PRETTY_FUNCTION__, sizeof(__PRETTY_FUNCTION__) - 1, 2209 , }; nslog__log(&_nslog_ctx, "Tried to expand an expanded node." ); } } while(0); |
| 2210 | return NSERROR_OK; |
| 2211 | } |
| 2212 | |
| 2213 | switch (node->type) { |
| 2214 | case TREE_NODE_FOLDER: |
| 2215 | child = node->children; |
| 2216 | if (child == NULL((void*)0)) { |
| 2217 | /* Allow expansion of empty folders */ |
| 2218 | break; |
| 2219 | } |
| 2220 | |
| 2221 | do { |
| 2222 | if (child->text.width == 0) { |
| 2223 | guit->layout->width(&plot_style_odd.text, |
| 2224 | child->text.data, |
| 2225 | child->text.len, |
| 2226 | &(child->text.width)); |
| 2227 | } |
| 2228 | |
| 2229 | additional_height_folders += child->height; |
| 2230 | |
| 2231 | child = child->next_sib; |
| 2232 | } while (child != NULL((void*)0)); |
| 2233 | |
| 2234 | break; |
| 2235 | |
| 2236 | case TREE_NODE_ENTRY: |
| 2237 | assert(node->children == NULL)((node->children == ((void*)0)) ? (void) (0) : __assert_fail ("node->children == NULL", "desktop/treeview.c", 2237, __extension__ __PRETTY_FUNCTION__)); |
| 2238 | |
| 2239 | e = (struct treeview_node_entry *)node; |
| 2240 | |
| 2241 | for (i = 0; i < tree->n_fields - 1; i++) { |
| 2242 | |
| 2243 | if (e->fields[i].value.width == 0) { |
| 2244 | guit->layout->width(&plot_style_odd.text, |
| 2245 | e->fields[i].value.data, |
| 2246 | e->fields[i].value.len, |
| 2247 | &(e->fields[i].value.width)); |
| 2248 | } |
| 2249 | |
| 2250 | /* Add height for field */ |
| 2251 | additional_height_entries += tree_g.line_height; |
| 2252 | } |
| 2253 | |
| 2254 | break; |
| 2255 | |
| 2256 | case TREE_NODE_ROOT: |
| 2257 | case TREE_NODE_NONE: |
| 2258 | assert(node->type != TREE_NODE_ROOT)((node->type != TREE_NODE_ROOT) ? (void) (0) : __assert_fail ("node->type != TREE_NODE_ROOT", "desktop/treeview.c", 2258 , __extension__ __PRETTY_FUNCTION__)); |
| 2259 | assert(node->type != TREE_NODE_NONE)((node->type != TREE_NODE_NONE) ? (void) (0) : __assert_fail ("node->type != TREE_NODE_NONE", "desktop/treeview.c", 2259 , __extension__ __PRETTY_FUNCTION__)); |
| 2260 | break; |
| 2261 | } |
| 2262 | |
| 2263 | /* Update the node */ |
| 2264 | node->flags |= TV_NFLAGS_EXPANDED; |
| 2265 | |
| 2266 | /* And node heights */ |
| 2267 | for (struct treeview_node *n = node; |
| 2268 | (n != NULL((void*)0)) && (n->flags & TV_NFLAGS_EXPANDED); |
| 2269 | n = n->parent) { |
| 2270 | n->height += additional_height_entries + |
| 2271 | additional_height_folders; |
| 2272 | } |
| 2273 | |
| 2274 | if (tree->search.search && |
| 2275 | node->type == TREE_NODE_ENTRY && |
| 2276 | node->flags & TV_NFLAGS_MATCHED) { |
| 2277 | tree->search.height += additional_height_entries; |
| 2278 | } |
| 2279 | |
| 2280 | /* Inform front end of change in dimensions */ |
| 2281 | if (additional_height_entries + additional_height_folders != 0) { |
| 2282 | treeview__cw_update_size(tree, -1, |
| 2283 | treeview__get_display_height(tree)); |
| 2284 | } |
| 2285 | |
| 2286 | return NSERROR_OK; |
| 2287 | } |
| 2288 | |
| 2289 | |
| 2290 | /* Exported interface, documented in treeview.h */ |
| 2291 | nserror treeview_node_expand(treeview *tree, treeview_node *node) |
| 2292 | { |
| 2293 | nserror res; |
| 2294 | |
| 2295 | res = treeview_node_expand_internal(tree, node); |
| 2296 | NSLOG(netsurf, INFO, "Expanding!")do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_INFO, "desktop/treeview.c", sizeof("desktop/treeview.c" ) - 1, __PRETTY_FUNCTION__, sizeof(__PRETTY_FUNCTION__) - 1, 2296 , }; nslog__log(&_nslog_ctx, "Expanding!"); } } while(0); |
| 2297 | if (res == NSERROR_OK) { |
| 2298 | /* expansion was successful, attempt redraw */ |
| 2299 | treeview__redraw_from_node(tree, node); |
| 2300 | NSLOG(netsurf, INFO, "Expanded!")do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_INFO, "desktop/treeview.c", sizeof("desktop/treeview.c" ) - 1, __PRETTY_FUNCTION__, sizeof(__PRETTY_FUNCTION__) - 1, 2300 , }; nslog__log(&_nslog_ctx, "Expanded!"); } } while(0); |
| 2301 | } |
| 2302 | |
| 2303 | return res; |
| 2304 | } |
| 2305 | |
| 2306 | |
| 2307 | /** |
| 2308 | * context for treeview contraction callback |
| 2309 | */ |
| 2310 | struct treeview_contract_data { |
| 2311 | treeview *tree; |
| 2312 | bool_Bool only_entries; |
| 2313 | }; |
| 2314 | |
| 2315 | |
| 2316 | /** |
| 2317 | * Treewalk node callback for handling node contraction. |
| 2318 | * |
| 2319 | * \param n node |
| 2320 | * \param ctx contract iterator context |
| 2321 | * \param end flag to end iteration now |
| 2322 | * \return NSERROR_OK on success else appropriate error code |
| 2323 | */ |
| 2324 | static nserror treeview_node_contract_cb(treeview_node *n, void *ctx, bool_Bool *end) |
| 2325 | { |
| 2326 | struct treeview_contract_data *data = ctx; |
| 2327 | int h_reduction_folder = 0; |
| 2328 | int h_reduction_entry = 0; |
| 2329 | |
| 2330 | assert(n != NULL)((n != ((void*)0)) ? (void) (0) : __assert_fail ("n != NULL", "desktop/treeview.c", 2330, __extension__ __PRETTY_FUNCTION__ )); |
| 2331 | assert(n->type != TREE_NODE_ROOT)((n->type != TREE_NODE_ROOT) ? (void) (0) : __assert_fail ( "n->type != TREE_NODE_ROOT", "desktop/treeview.c", 2331, __extension__ __PRETTY_FUNCTION__)); |
| 2332 | |
| 2333 | n->flags &= ~TV_NFLAGS_SELECTED; |
| 2334 | |
| 2335 | if ((n->flags & TV_NFLAGS_EXPANDED) == false0 || |
| 2336 | (n->type == TREE_NODE_FOLDER && data->only_entries)) { |
| 2337 | /* Nothing to do. */ |
| 2338 | return NSERROR_OK; |
| 2339 | } |
| 2340 | |
| 2341 | |
| 2342 | switch (n->type) { |
| 2343 | case TREE_NODE_FOLDER: |
| 2344 | h_reduction_folder = n->height - tree_g.line_height; |
| 2345 | break; |
| 2346 | |
| 2347 | case TREE_NODE_ENTRY: |
| 2348 | h_reduction_entry = n->height - tree_g.line_height; |
| 2349 | break; |
| 2350 | |
| 2351 | default: |
| 2352 | break; |
| 2353 | } |
| 2354 | |
| 2355 | |
| 2356 | assert(h_reduction_folder + h_reduction_entry >= 0)((h_reduction_folder + h_reduction_entry >= 0) ? (void) (0 ) : __assert_fail ("h_reduction_folder + h_reduction_entry >= 0" , "desktop/treeview.c", 2356, __extension__ __PRETTY_FUNCTION__ )); |
| 2357 | for (struct treeview_node *node = n; |
| 2358 | (node != NULL((void*)0)) && (node->flags & TV_NFLAGS_EXPANDED); |
| 2359 | node = node->parent) { |
| 2360 | node->height -= h_reduction_folder + h_reduction_entry; |
| 2361 | } |
| 2362 | |
| 2363 | if (data->tree->search.search) { |
| 2364 | data->tree->search.height -= h_reduction_entry; |
| 2365 | } |
| 2366 | |
| 2367 | n->flags ^= TV_NFLAGS_EXPANDED; |
| 2368 | |
| 2369 | return NSERROR_OK; |
| 2370 | } |
| 2371 | |
| 2372 | |
| 2373 | /** |
| 2374 | * Contract a treeview node |
| 2375 | * |
| 2376 | * \param tree Treeview object to contract node in |
| 2377 | * \param node Node to contract |
| 2378 | * \return NSERROR_OK on success, appropriate error otherwise |
| 2379 | */ |
| 2380 | static nserror |
| 2381 | treeview_node_contract_internal(treeview *tree, treeview_node *node) |
| 2382 | { |
| 2383 | struct treeview_contract_data data; |
| 2384 | bool_Bool selected; |
| 2385 | assert(node != NULL)((node != ((void*)0)) ? (void) (0) : __assert_fail ("node != NULL" , "desktop/treeview.c", 2385, __extension__ __PRETTY_FUNCTION__ )); |
| 2386 | |
| 2387 | if ((node->flags & TV_NFLAGS_EXPANDED) == false0) { |
| 2388 | /* What madness is this? */ |
| 2389 | NSLOG(netsurf, INFO, "Tried to contract a contracted node.")do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_INFO, "desktop/treeview.c", sizeof("desktop/treeview.c" ) - 1, __PRETTY_FUNCTION__, sizeof(__PRETTY_FUNCTION__) - 1, 2389 , }; nslog__log(&_nslog_ctx, "Tried to contract a contracted node." ); } } while(0); |
| 2390 | return NSERROR_OK; |
| 2391 | } |
| 2392 | |
| 2393 | data.tree = tree; |
| 2394 | data.only_entries = false0; |
| 2395 | selected = node->flags & TV_NFLAGS_SELECTED; |
| 2396 | |
| 2397 | /* Contract children. */ |
| 2398 | treeview_walk_internal(tree, node, TREEVIEW_WALK_MODE_LOGICAL_EXPANDED, |
| 2399 | treeview_node_contract_cb, NULL((void*)0), &data); |
| 2400 | |
| 2401 | /* Contract node */ |
| 2402 | treeview_node_contract_cb(node, &data, false0); |
| 2403 | |
| 2404 | if (selected) |
| 2405 | node->flags |= TV_NFLAGS_SELECTED; |
| 2406 | |
| 2407 | /* Inform front end of change in dimensions */ |
| 2408 | treeview__cw_update_size(tree, -1, treeview__get_display_height(tree)); |
| 2409 | |
| 2410 | return NSERROR_OK; |
| 2411 | } |
| 2412 | |
| 2413 | |
| 2414 | /* Exported interface, documented in treeview.h */ |
| 2415 | nserror treeview_node_contract(treeview *tree, treeview_node *node) |
| 2416 | { |
| 2417 | nserror res; |
| 2418 | |
| 2419 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 2419, __extension__ __PRETTY_FUNCTION__ )); |
| 2420 | |
| 2421 | res = treeview_node_contract_internal(tree, node); |
| 2422 | NSLOG(netsurf, INFO, "Contracting!")do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_INFO, "desktop/treeview.c", sizeof("desktop/treeview.c" ) - 1, __PRETTY_FUNCTION__, sizeof(__PRETTY_FUNCTION__) - 1, 2422 , }; nslog__log(&_nslog_ctx, "Contracting!"); } } while(0 ); |
| 2423 | if (res == NSERROR_OK) { |
| 2424 | /* successful contraction, request redraw */ |
| 2425 | treeview__redraw_from_node(tree, node); |
| 2426 | NSLOG(netsurf, INFO, "Contracted!")do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_INFO, "desktop/treeview.c", sizeof("desktop/treeview.c" ) - 1, __PRETTY_FUNCTION__, sizeof(__PRETTY_FUNCTION__) - 1, 2426 , }; nslog__log(&_nslog_ctx, "Contracted!"); } } while(0); |
| 2427 | } |
| 2428 | |
| 2429 | return res; |
| 2430 | } |
| 2431 | |
| 2432 | |
| 2433 | /* Exported interface, documented in treeview.h */ |
| 2434 | nserror treeview_contract(treeview *tree, bool_Bool all) |
| 2435 | { |
| 2436 | int search_height = treeview__get_search_height(tree); |
| 2437 | struct treeview_contract_data data; |
| 2438 | bool_Bool selected; |
| 2439 | treeview_node *n; |
| 2440 | struct rect r; |
| 2441 | |
| 2442 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 2442, __extension__ __PRETTY_FUNCTION__ )); |
| 2443 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 2443, __extension__ __PRETTY_FUNCTION__)); |
| 2444 | |
| 2445 | r.x0 = 0; |
| 2446 | r.y0 = 0; |
| 2447 | r.x1 = REDRAW_MAX8000; |
| 2448 | r.y1 = tree->root->height + search_height; |
| 2449 | |
| 2450 | data.tree = tree; |
| 2451 | data.only_entries = !all; |
| 2452 | |
| 2453 | for (n = tree->root->children; n != NULL((void*)0); n = n->next_sib) { |
| 2454 | if ((n->flags & TV_NFLAGS_EXPANDED) == false0) { |
| 2455 | continue; |
| 2456 | } |
| 2457 | |
| 2458 | selected = n->flags & TV_NFLAGS_SELECTED; |
| 2459 | |
| 2460 | /* Contract children. */ |
| 2461 | treeview_walk_internal(tree, n, |
| 2462 | TREEVIEW_WALK_MODE_LOGICAL_EXPANDED, |
| 2463 | treeview_node_contract_cb, NULL((void*)0), &data); |
| 2464 | |
| 2465 | /* Contract node */ |
| 2466 | treeview_node_contract_cb(n, &data, false0); |
| 2467 | |
| 2468 | if (selected) |
| 2469 | n->flags |= TV_NFLAGS_SELECTED; |
| 2470 | } |
| 2471 | |
| 2472 | /* Inform front end of change in dimensions */ |
| 2473 | treeview__cw_update_size(tree, -1, tree->root->height); |
| 2474 | |
| 2475 | /* Redraw */ |
| 2476 | treeview__cw_invalidate_area(tree, &r); |
| 2477 | |
| 2478 | return NSERROR_OK; |
| 2479 | } |
| 2480 | |
| 2481 | |
| 2482 | /** |
| 2483 | * context data for treeview expansion |
| 2484 | */ |
| 2485 | struct treeview_expand_data { |
| 2486 | treeview *tree; |
| 2487 | bool_Bool only_folders; |
| 2488 | }; |
| 2489 | |
| 2490 | |
| 2491 | /** |
| 2492 | * Treewalk node callback for handling recursive node expansion. |
| 2493 | * |
| 2494 | * \param n current node |
| 2495 | * \param ctx node expansion context |
| 2496 | * \param skip_children flag to allow children to be skipped |
| 2497 | * \param end flag to allow iteration to be finished early. |
| 2498 | * \return NSERROR_OK on success else error code. |
| 2499 | */ |
| 2500 | static nserror |
| 2501 | treeview_expand_cb(treeview_node *n, |
| 2502 | void *ctx, |
| 2503 | bool_Bool *skip_children, |
| 2504 | bool_Bool *end) |
| 2505 | { |
| 2506 | struct treeview_expand_data *data = ctx; |
| 2507 | nserror err; |
| 2508 | |
| 2509 | assert(n != NULL)((n != ((void*)0)) ? (void) (0) : __assert_fail ("n != NULL", "desktop/treeview.c", 2509, __extension__ __PRETTY_FUNCTION__ )); |
| 2510 | assert(n->type != TREE_NODE_ROOT)((n->type != TREE_NODE_ROOT) ? (void) (0) : __assert_fail ( "n->type != TREE_NODE_ROOT", "desktop/treeview.c", 2510, __extension__ __PRETTY_FUNCTION__)); |
| 2511 | |
| 2512 | if (n->flags & TV_NFLAGS_EXPANDED || |
| 2513 | (data->only_folders && n->type != TREE_NODE_FOLDER)) { |
| 2514 | /* Nothing to do. */ |
| 2515 | return NSERROR_OK; |
| 2516 | } |
| 2517 | |
| 2518 | err = treeview_node_expand_internal(data->tree, n); |
| 2519 | |
| 2520 | return err; |
| 2521 | } |
| 2522 | |
| 2523 | |
| 2524 | /* Exported interface, documented in treeview.h */ |
| 2525 | nserror treeview_expand(treeview *tree, bool_Bool only_folders) |
| 2526 | { |
| 2527 | struct treeview_expand_data data; |
| 2528 | nserror res; |
| 2529 | struct rect r; |
| 2530 | |
| 2531 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 2531, __extension__ __PRETTY_FUNCTION__ )); |
| 2532 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 2532, __extension__ __PRETTY_FUNCTION__)); |
| 2533 | |
| 2534 | data.tree = tree; |
| 2535 | data.only_folders = only_folders; |
| 2536 | |
| 2537 | res = treeview_walk_internal(tree, tree->root, |
| 2538 | TREEVIEW_WALK_MODE_LOGICAL_COMPLETE, |
| 2539 | NULL((void*)0), treeview_expand_cb, &data); |
| 2540 | if (res == NSERROR_OK) { |
| 2541 | /* expansion succeeded, schedule redraw */ |
| 2542 | |
| 2543 | r.x0 = 0; |
| 2544 | r.y0 = 0; |
| 2545 | r.x1 = REDRAW_MAX8000; |
| 2546 | r.y1 = tree->root->height; |
| 2547 | |
| 2548 | treeview__cw_invalidate_area(tree, &r); |
| 2549 | } |
| 2550 | return res; |
| 2551 | } |
| 2552 | |
| 2553 | |
| 2554 | /** |
| 2555 | * Draw a treeview normally, in tree mode. |
| 2556 | * |
| 2557 | * \param[in] tree The treeview we're rendering. |
| 2558 | * \param[in] x X coordinate we're rendering the treeview at. |
| 2559 | * \param[in] y Y coordinate we're rendering the treeview at. |
| 2560 | * \param[in,out] render_y Current vertical position in tree, updated on exit. |
| 2561 | * \param[in] r Clip rectangle. |
| 2562 | * \param[in] data Redraw data for rendering contents. |
| 2563 | * \param[in] ctx Current render context. |
| 2564 | */ |
| 2565 | static void treeview_redraw_tree( |
| 2566 | treeview *tree, |
| 2567 | const int x, |
| 2568 | const int y, |
| 2569 | int *render_y_in_out, |
| 2570 | const struct rect *r, |
| 2571 | struct content_redraw_data *data, |
| 2572 | const struct redraw_context *ctx) |
| 2573 | { |
| 2574 | struct treeview_node_style *style = &plot_style_odd; |
| 2575 | enum treeview_resource_id res = TREE_RES_CONTENT; |
| 2576 | int baseline = (tree_g.line_height * 3 + 2) / 4; |
| 2577 | plot_font_style_t *infotext_style; |
| 2578 | treeview_node *root = tree->root; |
| 2579 | treeview_node *node = tree->root; |
| 2580 | int render_y = *render_y_in_out; |
| 2581 | plot_font_style_t *text_style; |
| 2582 | plot_style_t *bg_style; |
| 2583 | int sel_min, sel_max; |
| 2584 | uint32_t count = 0; |
| 2585 | struct rect rect; |
| 2586 | int inset; |
| 2587 | int x0; |
| 2588 | |
| 2589 | if (tree->drag.start.y > tree->drag.prev.y) { |
| 2590 | sel_min = tree->drag.prev.y; |
| 2591 | sel_max = tree->drag.start.y; |
| 2592 | } else { |
| 2593 | sel_min = tree->drag.start.y; |
| 2594 | sel_max = tree->drag.prev.y; |
| 2595 | } |
| 2596 | |
| 2597 | while (node != NULL((void*)0)) { |
| 2598 | struct treeview_node_entry *entry; |
| 2599 | struct bitmap *furniture; |
| 2600 | bool_Bool invert_selection; |
| 2601 | treeview_node *next; |
| 2602 | int height; |
| 2603 | int i; |
| 2604 | |
| 2605 | next = (node->flags & TV_NFLAGS_EXPANDED) ? |
| 2606 | node->children : NULL((void*)0); |
| 2607 | |
| 2608 | if (next != NULL((void*)0)) { |
| 2609 | /* down to children */ |
| 2610 | node = next; |
| 2611 | } else { |
| 2612 | /* No children. As long as we're not at the root, |
| 2613 | * go to next sibling if present, or nearest ancestor |
| 2614 | * with a next sibling. */ |
| 2615 | |
| 2616 | while (node != root && |
| 2617 | node->next_sib == NULL((void*)0)) { |
| 2618 | node = node->parent; |
| 2619 | } |
| 2620 | |
| 2621 | if (node == root) |
| 2622 | break; |
| 2623 | |
| 2624 | node = node->next_sib; |
| 2625 | } |
| 2626 | |
| 2627 | assert(node != NULL)((node != ((void*)0)) ? (void) (0) : __assert_fail ("node != NULL" , "desktop/treeview.c", 2627, __extension__ __PRETTY_FUNCTION__ )); |
| 2628 | assert(node != root)((node != root) ? (void) (0) : __assert_fail ("node != root", "desktop/treeview.c", 2628, __extension__ __PRETTY_FUNCTION__ )); |
| 2629 | assert(node->type == TREE_NODE_FOLDER ||((node->type == TREE_NODE_FOLDER || node->type == TREE_NODE_ENTRY ) ? (void) (0) : __assert_fail ("node->type == TREE_NODE_FOLDER || node->type == TREE_NODE_ENTRY" , "desktop/treeview.c", 2630, __extension__ __PRETTY_FUNCTION__ )) |
| 2630 | node->type == TREE_NODE_ENTRY)((node->type == TREE_NODE_FOLDER || node->type == TREE_NODE_ENTRY ) ? (void) (0) : __assert_fail ("node->type == TREE_NODE_FOLDER || node->type == TREE_NODE_ENTRY" , "desktop/treeview.c", 2630, __extension__ __PRETTY_FUNCTION__ )); |
| 2631 | |
| 2632 | count++; |
| 2633 | inset = x + node->inset; |
| 2634 | height = (node->type == TREE_NODE_ENTRY) ? node->height : |
| 2635 | tree_g.line_height; |
| 2636 | |
| 2637 | if ((render_y + height) < r->y0) { |
| 2638 | /* This node's line is above clip region */ |
| 2639 | render_y += height; |
| 2640 | continue; |
| 2641 | } |
| 2642 | |
| 2643 | style = (count & 0x1) ? &plot_style_odd : &plot_style_even; |
| 2644 | if (tree->drag.type == TV_DRAG_SELECTION && |
| 2645 | (render_y + height >= sel_min && |
| 2646 | render_y < sel_max)) { |
| 2647 | invert_selection = true1; |
| 2648 | } else { |
| 2649 | invert_selection = false0; |
| 2650 | } |
| 2651 | if ((node->flags & TV_NFLAGS_SELECTED && !invert_selection) || |
| 2652 | (!(node->flags & TV_NFLAGS_SELECTED) && |
| 2653 | invert_selection)) { |
| 2654 | bg_style = &style->sbg; |
| 2655 | text_style = &style->stext; |
| 2656 | infotext_style = &style->sitext; |
| 2657 | furniture = (node->flags & TV_NFLAGS_EXPANDED) ? |
| 2658 | style->furn[TREE_FURN_CONTRACT].sel : |
| 2659 | style->furn[TREE_FURN_EXPAND].sel; |
| 2660 | } else { |
| 2661 | bg_style = &style->bg; |
| 2662 | text_style = &style->text; |
| 2663 | infotext_style = &style->itext; |
| 2664 | furniture = (node->flags & TV_NFLAGS_EXPANDED) ? |
| 2665 | style->furn[TREE_FURN_CONTRACT].bmp : |
| 2666 | style->furn[TREE_FURN_EXPAND].bmp; |
| 2667 | } |
| 2668 | |
| 2669 | /* Render background */ |
| 2670 | rect.x0 = r->x0; |
| 2671 | rect.y0 = render_y; |
| 2672 | rect.x1 = r->x1; |
| 2673 | rect.y1 = render_y + height; |
| 2674 | ctx->plot->rectangle(ctx, bg_style, &rect); |
| 2675 | |
| 2676 | /* Render toggle */ |
| 2677 | ctx->plot->bitmap(ctx, |
| 2678 | furniture, |
| 2679 | inset, |
| 2680 | render_y + tree_g.line_height / 4, |
| 2681 | style->furn[TREE_FURN_EXPAND].size, |
| 2682 | style->furn[TREE_FURN_EXPAND].size, |
| 2683 | bg_style->fill_colour, |
| 2684 | BITMAPF_NONE0); |
| 2685 | |
| 2686 | /* Render icon */ |
| 2687 | if (node->type == TREE_NODE_ENTRY) { |
| 2688 | res = TREE_RES_CONTENT; |
| 2689 | } else if (node->flags & TV_NFLAGS_SPECIAL) { |
| 2690 | res = TREE_RES_FOLDER_SPECIAL; |
| 2691 | } else { |
| 2692 | res = TREE_RES_FOLDER; |
| 2693 | } |
| 2694 | |
| 2695 | if (treeview_res[res].ready) { |
| 2696 | /* Icon resource is available */ |
| 2697 | data->x = inset + tree_g.step_width; |
| 2698 | data->y = render_y + ((tree_g.line_height - |
| 2699 | treeview_res[res].height + 1) / 2); |
| 2700 | data->background_colour = bg_style->fill_colour; |
| 2701 | |
| 2702 | content_redraw(treeview_res[res].c, data, r, ctx); |
| 2703 | } |
| 2704 | |
| 2705 | /* Render text */ |
| 2706 | x0 = inset + tree_g.step_width + tree_g.icon_step; |
| 2707 | ctx->plot->text(ctx, |
| 2708 | text_style, |
| 2709 | x0, render_y + baseline, |
| 2710 | node->text.data, |
| 2711 | node->text.len); |
| 2712 | |
| 2713 | /* Rendered the node */ |
| 2714 | render_y += tree_g.line_height; |
| 2715 | if (render_y > r->y1) { |
| 2716 | /* Passed the bottom of what's in the clip region. |
| 2717 | * Done. */ |
| 2718 | break; |
| 2719 | } |
| 2720 | |
| 2721 | |
| 2722 | if (node->type != TREE_NODE_ENTRY || |
| 2723 | !(node->flags & TV_NFLAGS_EXPANDED)) |
| 2724 | /* Done everything for this node */ |
| 2725 | continue; |
| 2726 | |
| 2727 | /* Render expanded entry fields */ |
| 2728 | entry = (struct treeview_node_entry *)node; |
| 2729 | for (i = 0; i < tree->n_fields - 1; i++) { |
| 2730 | struct treeview_field *ef = &(tree->fields[i + 1]); |
| 2731 | |
| 2732 | if (ef->flags & TREE_FLAG_SHOW_NAME) { |
| 2733 | int max_width = tree->field_width; |
| 2734 | |
| 2735 | ctx->plot->text(ctx, |
| 2736 | infotext_style, |
| 2737 | x0 + max_width - ef->value.width - tree_g.step_width, |
| 2738 | render_y + baseline, |
| 2739 | ef->value.data, |
| 2740 | ef->value.len); |
| 2741 | |
| 2742 | ctx->plot->text(ctx, |
| 2743 | infotext_style, |
| 2744 | x0 + max_width, |
| 2745 | render_y + baseline, |
| 2746 | entry->fields[i].value.data, |
| 2747 | entry->fields[i].value.len); |
| 2748 | } else { |
| 2749 | ctx->plot->text(ctx, |
| 2750 | infotext_style, |
| 2751 | x0, render_y + baseline, |
| 2752 | entry->fields[i].value.data, |
| 2753 | entry->fields[i].value.len); |
| 2754 | } |
| 2755 | |
| 2756 | /* Rendered the expanded entry field */ |
| 2757 | render_y += tree_g.line_height; |
| 2758 | } |
| 2759 | |
| 2760 | /* Finished rendering expanded entry */ |
| 2761 | |
| 2762 | if (render_y > r->y1) { |
| 2763 | /* Passed the bottom of what's in the clip region. |
| 2764 | * Done. */ |
| 2765 | break; |
| 2766 | } |
| 2767 | } |
| 2768 | |
| 2769 | *render_y_in_out = render_y; |
| 2770 | } |
| 2771 | |
| 2772 | |
| 2773 | /** |
| 2774 | * Draw a treeview normally, in tree mode. |
| 2775 | * |
| 2776 | * \param[in] tree The treeview we're rendering. |
| 2777 | * \param[in] x X coordinate we're rendering the treeview at. |
| 2778 | * \param[in] y Y coordinate we're rendering the treeview at. |
| 2779 | * \param[in,out] render_y Current vertical position in tree, updated on exit. |
| 2780 | * \param[in] r Clip rectangle. |
| 2781 | * \param[in] data Redraw data for rendering contents. |
| 2782 | * \param[in] ctx Current render context. |
| 2783 | */ |
| 2784 | static void treeview_redraw_search( |
| 2785 | treeview *tree, |
| 2786 | const int x, |
| 2787 | const int y, |
| 2788 | int *render_y_in_out, |
| 2789 | const struct rect *r, |
| 2790 | struct content_redraw_data *data, |
| 2791 | const struct redraw_context *ctx) |
| 2792 | { |
| 2793 | struct treeview_node_style *style = &plot_style_odd; |
| 2794 | enum treeview_resource_id res = TREE_RES_CONTENT; |
| 2795 | int baseline = (tree_g.line_height * 3 + 2) / 4; |
| 2796 | plot_font_style_t *infotext_style; |
| 2797 | treeview_node *root = tree->root; |
| 2798 | treeview_node *node = tree->root; |
| 2799 | int render_y = *render_y_in_out; |
| 2800 | plot_font_style_t *text_style; |
| 2801 | plot_style_t *bg_style; |
| 2802 | int sel_min, sel_max; |
| 2803 | uint32_t count = 0; |
| 2804 | struct rect rect; |
| 2805 | int inset; |
| 2806 | int x0; |
| 2807 | |
| 2808 | if (tree->drag.start.y > tree->drag.prev.y) { |
| 2809 | sel_min = tree->drag.prev.y; |
| 2810 | sel_max = tree->drag.start.y; |
| 2811 | } else { |
| 2812 | sel_min = tree->drag.start.y; |
| 2813 | sel_max = tree->drag.prev.y; |
| 2814 | } |
| 2815 | |
| 2816 | while (node != NULL((void*)0)) { |
| 2817 | struct treeview_node_entry *entry; |
| 2818 | struct bitmap *furniture; |
| 2819 | bool_Bool invert_selection; |
| 2820 | treeview_node *next; |
| 2821 | int height; |
| 2822 | int i; |
| 2823 | |
| 2824 | next = node->children; |
| 2825 | |
| 2826 | if (next != NULL((void*)0)) { |
| 2827 | /* down to children */ |
| 2828 | node = next; |
| 2829 | } else { |
| 2830 | /* No children. As long as we're not at the root, |
| 2831 | * go to next sibling if present, or nearest ancestor |
| 2832 | * with a next sibling. */ |
| 2833 | |
| 2834 | while (node != root && |
| 2835 | node->next_sib == NULL((void*)0)) { |
| 2836 | node = node->parent; |
| 2837 | } |
| 2838 | |
| 2839 | if (node == root) |
| 2840 | break; |
| 2841 | |
| 2842 | node = node->next_sib; |
| 2843 | } |
| 2844 | |
| 2845 | assert(node != NULL)((node != ((void*)0)) ? (void) (0) : __assert_fail ("node != NULL" , "desktop/treeview.c", 2845, __extension__ __PRETTY_FUNCTION__ )); |
| 2846 | assert(node != root)((node != root) ? (void) (0) : __assert_fail ("node != root", "desktop/treeview.c", 2846, __extension__ __PRETTY_FUNCTION__ )); |
| 2847 | assert(node->type == TREE_NODE_FOLDER ||((node->type == TREE_NODE_FOLDER || node->type == TREE_NODE_ENTRY ) ? (void) (0) : __assert_fail ("node->type == TREE_NODE_FOLDER || node->type == TREE_NODE_ENTRY" , "desktop/treeview.c", 2848, __extension__ __PRETTY_FUNCTION__ )) |
| 2848 | node->type == TREE_NODE_ENTRY)((node->type == TREE_NODE_FOLDER || node->type == TREE_NODE_ENTRY ) ? (void) (0) : __assert_fail ("node->type == TREE_NODE_FOLDER || node->type == TREE_NODE_ENTRY" , "desktop/treeview.c", 2848, __extension__ __PRETTY_FUNCTION__ )); |
| 2849 | |
| 2850 | if (node->type == TREE_NODE_FOLDER || |
| 2851 | !(node->flags & TV_NFLAGS_MATCHED)) { |
| 2852 | continue; |
| 2853 | } |
| 2854 | |
| 2855 | count++; |
| 2856 | inset = x + tree_g.window_padding; |
| 2857 | height = node->height; |
| 2858 | |
| 2859 | if ((render_y + height) < r->y0) { |
| 2860 | /* This node's line is above clip region */ |
| 2861 | render_y += height; |
| 2862 | continue; |
| 2863 | } |
| 2864 | |
| 2865 | style = (count & 0x1) ? &plot_style_odd : &plot_style_even; |
| 2866 | if (tree->drag.type == TV_DRAG_SELECTION && |
| 2867 | (render_y + height >= sel_min && |
| 2868 | render_y < sel_max)) { |
| 2869 | invert_selection = true1; |
| 2870 | } else { |
| 2871 | invert_selection = false0; |
| 2872 | } |
| 2873 | if ((node->flags & TV_NFLAGS_SELECTED && !invert_selection) || |
| 2874 | (!(node->flags & TV_NFLAGS_SELECTED) && |
| 2875 | invert_selection)) { |
| 2876 | bg_style = &style->sbg; |
| 2877 | text_style = &style->stext; |
| 2878 | infotext_style = &style->sitext; |
| 2879 | furniture = (node->flags & TV_NFLAGS_EXPANDED) ? |
| 2880 | style->furn[TREE_FURN_CONTRACT].sel : |
| 2881 | style->furn[TREE_FURN_EXPAND].sel; |
| 2882 | } else { |
| 2883 | bg_style = &style->bg; |
| 2884 | text_style = &style->text; |
| 2885 | infotext_style = &style->itext; |
| 2886 | furniture = (node->flags & TV_NFLAGS_EXPANDED) ? |
| 2887 | style->furn[TREE_FURN_CONTRACT].bmp : |
| 2888 | style->furn[TREE_FURN_EXPAND].bmp; |
| 2889 | } |
| 2890 | |
| 2891 | /* Render background */ |
| 2892 | rect.x0 = r->x0; |
| 2893 | rect.y0 = render_y; |
| 2894 | rect.x1 = r->x1; |
| 2895 | rect.y1 = render_y + height; |
| 2896 | ctx->plot->rectangle(ctx, bg_style, &rect); |
| 2897 | |
| 2898 | /* Render toggle */ |
| 2899 | ctx->plot->bitmap(ctx, |
| 2900 | furniture, |
| 2901 | inset, |
| 2902 | render_y + tree_g.line_height / 4, |
| 2903 | style->furn[TREE_FURN_EXPAND].size, |
| 2904 | style->furn[TREE_FURN_EXPAND].size, |
| 2905 | bg_style->fill_colour, |
| 2906 | BITMAPF_NONE0); |
| 2907 | |
| 2908 | /* Render icon */ |
| 2909 | if (node->type == TREE_NODE_ENTRY) { |
| 2910 | res = TREE_RES_CONTENT; |
| 2911 | } else if (node->flags & TV_NFLAGS_SPECIAL) { |
| 2912 | res = TREE_RES_FOLDER_SPECIAL; |
| 2913 | } else { |
| 2914 | res = TREE_RES_FOLDER; |
| 2915 | } |
| 2916 | |
| 2917 | if (treeview_res[res].ready) { |
| 2918 | /* Icon resource is available */ |
| 2919 | data->x = inset + tree_g.step_width; |
| 2920 | data->y = render_y + ((tree_g.line_height - |
| 2921 | treeview_res[res].height + 1) / 2); |
| 2922 | data->background_colour = bg_style->fill_colour; |
| 2923 | |
| 2924 | content_redraw(treeview_res[res].c, data, r, ctx); |
| 2925 | } |
| 2926 | |
| 2927 | /* Render text */ |
| 2928 | x0 = inset + tree_g.step_width + tree_g.icon_step; |
| 2929 | ctx->plot->text(ctx, |
| 2930 | text_style, |
| 2931 | x0, render_y + baseline, |
| 2932 | node->text.data, |
| 2933 | node->text.len); |
| 2934 | |
| 2935 | /* Rendered the node */ |
| 2936 | render_y += tree_g.line_height; |
| 2937 | if (render_y > r->y1) { |
| 2938 | /* Passed the bottom of what's in the clip region. |
| 2939 | * Done. */ |
| 2940 | break; |
| 2941 | } |
| 2942 | |
| 2943 | |
| 2944 | if (node->type != TREE_NODE_ENTRY || |
| 2945 | !(node->flags & TV_NFLAGS_EXPANDED)) |
| 2946 | /* Done everything for this node */ |
| 2947 | continue; |
| 2948 | |
| 2949 | /* Render expanded entry fields */ |
| 2950 | entry = (struct treeview_node_entry *)node; |
| 2951 | for (i = 0; i < tree->n_fields - 1; i++) { |
| 2952 | struct treeview_field *ef = &(tree->fields[i + 1]); |
| 2953 | |
| 2954 | if (ef->flags & TREE_FLAG_SHOW_NAME) { |
| 2955 | int max_width = tree->field_width; |
| 2956 | |
| 2957 | ctx->plot->text(ctx, |
| 2958 | infotext_style, |
| 2959 | x0 + max_width - ef->value.width - tree_g.step_width, |
| 2960 | render_y + baseline, |
| 2961 | ef->value.data, |
| 2962 | ef->value.len); |
| 2963 | |
| 2964 | ctx->plot->text(ctx, |
| 2965 | infotext_style, |
| 2966 | x0 + max_width, |
| 2967 | render_y + baseline, |
| 2968 | entry->fields[i].value.data, |
| 2969 | entry->fields[i].value.len); |
| 2970 | } else { |
| 2971 | ctx->plot->text(ctx, |
| 2972 | infotext_style, |
| 2973 | x0, render_y + baseline, |
| 2974 | entry->fields[i].value.data, |
| 2975 | entry->fields[i].value.len); |
| 2976 | } |
| 2977 | |
| 2978 | /* Rendered the expanded entry field */ |
| 2979 | render_y += tree_g.line_height; |
| 2980 | } |
| 2981 | |
| 2982 | /* Finished rendering expanded entry */ |
| 2983 | |
| 2984 | if (render_y > r->y1) { |
| 2985 | /* Passed the bottom of what's in the clip region. |
| 2986 | * Done. */ |
| 2987 | break; |
| 2988 | } |
| 2989 | } |
| 2990 | |
| 2991 | *render_y_in_out = render_y; |
| 2992 | } |
| 2993 | |
| 2994 | |
| 2995 | /* Exported interface, documented in treeview.h */ |
| 2996 | void |
| 2997 | treeview_redraw(treeview *tree, |
| 2998 | const int x, |
| 2999 | const int y, |
| 3000 | struct rect *clip, |
| 3001 | const struct redraw_context *ctx) |
| 3002 | { |
| 3003 | struct redraw_context new_ctx = *ctx; |
| 3004 | struct content_redraw_data data; |
| 3005 | struct rect r; |
| 3006 | struct rect rect; |
| 3007 | int render_y = y; |
| 3008 | |
| 3009 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 3009, __extension__ __PRETTY_FUNCTION__ )); |
| 3010 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 3010, __extension__ __PRETTY_FUNCTION__)); |
| 3011 | assert(tree->root->flags & TV_NFLAGS_EXPANDED)((tree->root->flags & TV_NFLAGS_EXPANDED) ? (void) ( 0) : __assert_fail ("tree->root->flags & TV_NFLAGS_EXPANDED" , "desktop/treeview.c", 3011, __extension__ __PRETTY_FUNCTION__ )); |
| 3012 | |
| 3013 | /* Start knockout rendering if it's available for this plotter */ |
| 3014 | if (ctx->plot->option_knockout) { |
| 3015 | knockout_plot_start(ctx, &new_ctx); |
| 3016 | } |
| 3017 | |
| 3018 | /* Set up clip rectangle */ |
| 3019 | r.x0 = clip->x0 + x; |
| 3020 | r.y0 = clip->y0 + y; |
| 3021 | r.x1 = clip->x1 + x; |
| 3022 | r.y1 = clip->y1 + y; |
| 3023 | new_ctx.plot->clip(&new_ctx, &r); |
| 3024 | |
| 3025 | /* Setup common content redraw data */ |
| 3026 | data.width = tree_g.icon_size; |
| 3027 | data.height = tree_g.icon_size; |
| 3028 | data.scale = 1; |
| 3029 | data.repeat_x = false0; |
| 3030 | data.repeat_y = false0; |
| 3031 | |
| 3032 | if (tree->flags & TREEVIEW_SEARCHABLE) { |
| 3033 | if (render_y < r.y1) { |
| 3034 | enum treeview_resource_id icon = TREE_RES_SEARCH; |
| 3035 | |
| 3036 | /* Fill the blank area at the bottom */ |
| 3037 | rect.x0 = r.x0; |
| 3038 | rect.y0 = render_y; |
| 3039 | rect.x1 = r.x1; |
| 3040 | rect.y1 = render_y + tree_g.line_height; |
| 3041 | new_ctx.plot->rectangle(&new_ctx, &plot_style_even.bg, |
| 3042 | &rect); |
| 3043 | |
| 3044 | if (treeview_res[icon].ready) { |
| 3045 | /* Icon resource is available */ |
| 3046 | data.x = tree_g.window_padding; |
| 3047 | data.y = render_y + ((tree_g.line_height - |
| 3048 | treeview_res[icon].height + 1) / |
| 3049 | 2); |
| 3050 | data.background_colour = plot_style_even.bg. |
| 3051 | fill_colour; |
| 3052 | |
| 3053 | content_redraw(treeview_res[icon].c, |
| 3054 | &data, &r, &new_ctx); |
| 3055 | } |
| 3056 | |
| 3057 | textarea_redraw(tree->search.textarea, |
| 3058 | x + tree_g.window_padding + |
| 3059 | tree_g.icon_step, y, |
| 3060 | plot_style_even.bg.fill_colour, 1.0, |
| 3061 | &r, &new_ctx); |
| 3062 | } |
| 3063 | render_y += tree_g.line_height; |
| 3064 | } |
| 3065 | |
| 3066 | /* Render the treeview data */ |
| 3067 | if (tree->search.search == true1) { |
| 3068 | treeview_redraw_search(tree, x, y, |
| 3069 | &render_y, &r, &data, &new_ctx); |
| 3070 | } else { |
| 3071 | treeview_redraw_tree(tree, x, y, |
| 3072 | &render_y, &r, &data, &new_ctx); |
| 3073 | } |
| 3074 | |
| 3075 | if (render_y < r.y1) { |
| 3076 | /* Fill the blank area at the bottom */ |
| 3077 | rect.x0 = r.x0; |
| 3078 | rect.y0 = render_y; |
| 3079 | rect.x1 = r.x1; |
| 3080 | rect.y1 = r.y1; |
| 3081 | new_ctx.plot->rectangle(&new_ctx, &plot_style_even.bg, &rect); |
| 3082 | } |
| 3083 | |
| 3084 | /* All normal treeview rendering is done; render any overlays */ |
| 3085 | if ((tree->move.target_pos != TV_TARGET_NONE) && |
| 3086 | (treeview_res[TREE_RES_ARROW].ready)) { |
| 3087 | /* Got a MOVE drag; render move indicator arrow */ |
| 3088 | data.x = tree->move.target_area.x0 + x; |
| 3089 | data.y = tree->move.target_area.y0 + y; |
| 3090 | data.background_colour = plot_style_even.bg.fill_colour; |
| 3091 | |
| 3092 | content_redraw(treeview_res[TREE_RES_ARROW].c, &data, &r, &new_ctx); |
| 3093 | |
| 3094 | } else if (tree->edit.textarea != NULL((void*)0)) { |
| 3095 | /* Edit in progress; render textarea */ |
| 3096 | textarea_redraw(tree->edit.textarea, |
| 3097 | tree->edit.x + x, tree->edit.y + y, |
| 3098 | plot_style_even.bg.fill_colour, 1.0, |
| 3099 | &r, &new_ctx); |
| 3100 | } |
| 3101 | |
| 3102 | /* Rendering complete */ |
| 3103 | if (ctx->plot->option_knockout) { |
| 3104 | knockout_plot_end(ctx); |
| 3105 | } |
| 3106 | } |
| 3107 | |
| 3108 | |
| 3109 | /** |
| 3110 | * context for treeview selection |
| 3111 | */ |
| 3112 | struct treeview_selection_walk_data { |
| 3113 | enum { |
| 3114 | TREEVIEW_WALK_HAS_SELECTION, |
| 3115 | TREEVIEW_WALK_GET_FIRST_SELECTED, |
| 3116 | TREEVIEW_WALK_CLEAR_SELECTION, |
| 3117 | TREEVIEW_WALK_SELECT_ALL, |
| 3118 | TREEVIEW_WALK_COMMIT_SELECT_DRAG, |
| 3119 | TREEVIEW_WALK_DELETE_SELECTION, |
| 3120 | TREEVIEW_WALK_PROPAGATE_SELECTION, |
| 3121 | TREEVIEW_WALK_YANK_SELECTION, |
| 3122 | TREEVIEW_WALK_COPY_SELECTION |
| 3123 | } purpose; |
| 3124 | union { |
| 3125 | bool_Bool has_selection; |
| 3126 | struct { |
| 3127 | bool_Bool required; |
| 3128 | struct rect *rect; |
| 3129 | } redraw; |
| 3130 | struct { |
| 3131 | int sel_min; |
| 3132 | int sel_max; |
| 3133 | } drag; |
| 3134 | struct { |
| 3135 | treeview_node *prev; |
| 3136 | treeview_node *fixed; |
| 3137 | } yank; |
| 3138 | struct { |
| 3139 | treeview_node *n; |
| 3140 | } first; |
| 3141 | struct { |
| 3142 | char *text; |
| 3143 | uint32_t len; |
| 3144 | } copy; |
| 3145 | } data; |
| 3146 | int current_y; |
| 3147 | treeview *tree; |
| 3148 | }; |
| 3149 | |
| 3150 | |
| 3151 | /** |
| 3152 | * Treewalk node callback for handling selection related actions. |
| 3153 | * |
| 3154 | * \param n current node |
| 3155 | * \param ctx node selection context |
| 3156 | * \param skip_children flag to allow children to be skipped |
| 3157 | * \param end flag to allow iteration to be finished early. |
| 3158 | * \return NSERROR_OK on success else error code. |
| 3159 | */ |
| 3160 | static nserror |
| 3161 | treeview_node_selection_walk_cb(treeview_node *n, |
| 3162 | void *ctx, |
| 3163 | bool_Bool *skip_children, |
| 3164 | bool_Bool *end) |
| 3165 | { |
| 3166 | struct treeview_selection_walk_data *sw = ctx; |
| 3167 | int height; |
| 3168 | bool_Bool changed = false0; |
| 3169 | nserror err; |
| 3170 | |
| 3171 | height = (n->type == TREE_NODE_ENTRY) ? n->height : tree_g.line_height; |
| 3172 | sw->current_y += height; |
| 3173 | |
| 3174 | switch (sw->purpose) { |
| 3175 | case TREEVIEW_WALK_HAS_SELECTION: |
| 3176 | if (n->flags & TV_NFLAGS_SELECTED) { |
| 3177 | sw->data.has_selection = true1; |
| 3178 | *end = true1; /* Can abort tree walk */ |
| 3179 | return NSERROR_OK; |
| 3180 | } |
| 3181 | break; |
| 3182 | |
| 3183 | case TREEVIEW_WALK_GET_FIRST_SELECTED: |
| 3184 | if (n->flags & TV_NFLAGS_SELECTED) { |
| 3185 | sw->data.first.n = n; |
| 3186 | *end = true1; /* Can abort tree walk */ |
| 3187 | return NSERROR_OK; |
| 3188 | } |
| 3189 | break; |
| 3190 | |
| 3191 | case TREEVIEW_WALK_DELETE_SELECTION: |
| 3192 | if (n->flags & TV_NFLAGS_SELECTED) { |
| 3193 | err = treeview_delete_node_internal(sw->tree, n, true1, |
| 3194 | TREE_OPTION_NONE); |
| 3195 | if (err != NSERROR_OK) { |
| 3196 | return err; |
| 3197 | } |
| 3198 | *skip_children = true1; |
| 3199 | changed = true1; |
| 3200 | } |
| 3201 | break; |
| 3202 | |
| 3203 | case TREEVIEW_WALK_PROPAGATE_SELECTION: |
| 3204 | if (n->parent != NULL((void*)0) && |
| 3205 | n->parent->flags & TV_NFLAGS_SELECTED && |
| 3206 | !(n->flags & TV_NFLAGS_SELECTED)) { |
| 3207 | n->flags ^= TV_NFLAGS_SELECTED; |
| 3208 | changed = true1; |
| 3209 | } |
| 3210 | break; |
| 3211 | |
| 3212 | case TREEVIEW_WALK_CLEAR_SELECTION: |
| 3213 | if (n->flags & TV_NFLAGS_SELECTED) { |
| 3214 | n->flags ^= TV_NFLAGS_SELECTED; |
| 3215 | changed = true1; |
| 3216 | } |
| 3217 | break; |
| 3218 | |
| 3219 | case TREEVIEW_WALK_SELECT_ALL: |
| 3220 | if (!(n->flags & TV_NFLAGS_SELECTED)) { |
| 3221 | n->flags ^= TV_NFLAGS_SELECTED; |
| 3222 | changed = true1; |
| 3223 | } |
| 3224 | break; |
| 3225 | |
| 3226 | case TREEVIEW_WALK_COMMIT_SELECT_DRAG: |
| 3227 | if (sw->current_y >= sw->data.drag.sel_min && |
| 3228 | sw->current_y - height < |
| 3229 | sw->data.drag.sel_max) { |
| 3230 | n->flags ^= TV_NFLAGS_SELECTED; |
| 3231 | } |
| 3232 | return NSERROR_OK; |
| 3233 | |
| 3234 | case TREEVIEW_WALK_YANK_SELECTION: |
| 3235 | if (n->flags & TV_NFLAGS_SELECTED) { |
| 3236 | treeview_node *p = n->parent; |
| 3237 | int h = 0; |
| 3238 | |
| 3239 | if (n == sw->data.yank.fixed) { |
| 3240 | break; |
| 3241 | } |
| 3242 | |
| 3243 | if (treeview_unlink_node(n)) |
| 3244 | h = n->height; |
| 3245 | |
| 3246 | /* Reduce ancestor heights */ |
| 3247 | while (p != NULL((void*)0) && p->flags & TV_NFLAGS_EXPANDED) { |
| 3248 | p->height -= h; |
| 3249 | p = p->parent; |
| 3250 | } |
| 3251 | if (sw->data.yank.prev == NULL((void*)0)) { |
| 3252 | sw->tree->move.root = n; |
| 3253 | n->parent = NULL((void*)0); |
| 3254 | n->prev_sib = NULL((void*)0); |
| 3255 | n->next_sib = NULL((void*)0); |
| 3256 | } else { |
| 3257 | n->parent = NULL((void*)0); |
| 3258 | n->prev_sib = sw->data.yank.prev; |
| 3259 | n->next_sib = NULL((void*)0); |
| 3260 | sw->data.yank.prev->next_sib = n; |
| 3261 | } |
| 3262 | sw->data.yank.prev = n; |
| 3263 | |
| 3264 | *skip_children = true1; |
| 3265 | } |
| 3266 | break; |
| 3267 | |
| 3268 | case TREEVIEW_WALK_COPY_SELECTION: |
| 3269 | if (n->flags & TV_NFLAGS_SELECTED && |
| 3270 | n->type == TREE_NODE_ENTRY) { |
| 3271 | int i; |
| 3272 | char *temp; |
| 3273 | uint32_t len; |
| 3274 | const char *text; |
| 3275 | struct treeview_field *ef; |
| 3276 | struct treeview_text *val; |
| 3277 | |
| 3278 | for (i = 0; i < sw->tree->n_fields; i++) { |
| 3279 | ef = &(sw->tree->fields[i]); |
| 3280 | |
| 3281 | if (!(ef->flags & TREE_FLAG_COPY_TEXT)) { |
| 3282 | continue; |
| 3283 | } |
| 3284 | val = treeview_get_text_for_field(sw->tree, |
| 3285 | n, i); |
| 3286 | text = val->data; |
| 3287 | len = val->len; |
| 3288 | |
| 3289 | temp = realloc(sw->data.copy.text, |
| 3290 | sw->data.copy.len + len + 1); |
| 3291 | if (temp == NULL((void*)0)) { |
| 3292 | free(sw->data.copy.text); |
| 3293 | sw->data.copy.text = NULL((void*)0); |
| 3294 | sw->data.copy.len = 0; |
| 3295 | return NSERROR_NOMEM; |
| 3296 | } |
| 3297 | |
| 3298 | if (sw->data.copy.len != 0) { |
| 3299 | temp[sw->data.copy.len - 1] = '\n'; |
| 3300 | } |
| 3301 | memcpy(temp + sw->data.copy.len, text, len); |
| 3302 | temp[sw->data.copy.len + len] = '\0'; |
| 3303 | sw->data.copy.len += len + 1; |
| 3304 | sw->data.copy.text = temp; |
| 3305 | } |
| 3306 | } |
| 3307 | break; |
| 3308 | } |
| 3309 | |
| 3310 | if (changed) { |
| 3311 | if (sw->data.redraw.required == false0) { |
| 3312 | sw->data.redraw.required = true1; |
| 3313 | sw->data.redraw.rect->y0 = sw->current_y - height; |
| 3314 | } |
| 3315 | |
| 3316 | if (sw->current_y > sw->data.redraw.rect->y1) { |
| 3317 | sw->data.redraw.rect->y1 = sw->current_y; |
| 3318 | } |
| 3319 | } |
| 3320 | |
| 3321 | return NSERROR_OK; |
| 3322 | } |
| 3323 | |
| 3324 | |
| 3325 | /* Exported interface, documented in treeview.h */ |
| 3326 | bool_Bool treeview_has_selection(treeview *tree) |
| 3327 | { |
| 3328 | struct treeview_selection_walk_data sw; |
| 3329 | |
| 3330 | sw.purpose = TREEVIEW_WALK_HAS_SELECTION; |
| 3331 | sw.data.has_selection = false0; |
| 3332 | |
| 3333 | treeview_walk_internal(tree, tree->root, |
| 3334 | TREEVIEW_WALK_MODE_DISPLAY, NULL((void*)0), |
| 3335 | treeview_node_selection_walk_cb, &sw); |
| 3336 | |
| 3337 | return sw.data.has_selection; |
| 3338 | } |
| 3339 | |
| 3340 | |
| 3341 | /** |
| 3342 | * Get first selected node (in any) |
| 3343 | * |
| 3344 | * \param tree Treeview object in which to create folder |
| 3345 | * \return the first selected treeview node, or NULL |
| 3346 | */ |
| 3347 | static treeview_node * treeview_get_first_selected(treeview *tree) |
| 3348 | { |
| 3349 | struct treeview_selection_walk_data sw; |
| 3350 | |
| 3351 | sw.purpose = TREEVIEW_WALK_GET_FIRST_SELECTED; |
| 3352 | sw.data.first.n = NULL((void*)0); |
| 3353 | |
| 3354 | treeview_walk_internal(tree, tree->root, |
| 3355 | TREEVIEW_WALK_MODE_DISPLAY, NULL((void*)0), |
| 3356 | treeview_node_selection_walk_cb, &sw); |
| 3357 | |
| 3358 | return sw.data.first.n; |
| 3359 | } |
| 3360 | |
| 3361 | |
| 3362 | /* Exported interface, documented in treeview.h */ |
| 3363 | enum treeview_node_type treeview_get_selection(treeview *tree, |
| 3364 | void **node_data) |
| 3365 | { |
| 3366 | treeview_node *n; |
| 3367 | |
| 3368 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 3368, __extension__ __PRETTY_FUNCTION__ )); |
| 3369 | |
| 3370 | n = treeview_get_first_selected(tree); |
| 3371 | |
| 3372 | if (n != NULL((void*)0) && n->type & (TREE_NODE_ENTRY | TREE_NODE_FOLDER)) { |
| 3373 | *node_data = n->client_data; |
| 3374 | return n->type; |
| 3375 | } |
| 3376 | |
| 3377 | *node_data = NULL((void*)0); |
| 3378 | return TREE_NODE_NONE; |
| 3379 | } |
| 3380 | |
| 3381 | |
| 3382 | /** |
| 3383 | * Clear any selection in a treeview |
| 3384 | * |
| 3385 | * \param tree Treeview object to clear selection in |
| 3386 | * \param rect Redraw rectangle (if redraw required) |
| 3387 | * \return true iff redraw required |
| 3388 | */ |
| 3389 | static bool_Bool treeview_clear_selection(treeview *tree, struct rect *rect) |
| 3390 | { |
| 3391 | struct treeview_selection_walk_data sw; |
| 3392 | |
| 3393 | rect->x0 = 0; |
| 3394 | rect->y0 = 0; |
| 3395 | rect->x1 = REDRAW_MAX8000; |
| 3396 | rect->y1 = 0; |
| 3397 | |
| 3398 | sw.purpose = TREEVIEW_WALK_CLEAR_SELECTION; |
| 3399 | sw.data.redraw.required = false0; |
| 3400 | sw.data.redraw.rect = rect; |
| 3401 | sw.current_y = treeview__get_search_height(tree); |
| 3402 | |
| 3403 | treeview_walk_internal(tree, tree->root, |
| 3404 | TREEVIEW_WALK_MODE_DISPLAY, NULL((void*)0), |
| 3405 | treeview_node_selection_walk_cb, &sw); |
| 3406 | |
| 3407 | return sw.data.redraw.required; |
| 3408 | } |
| 3409 | |
| 3410 | |
| 3411 | /** |
| 3412 | * Select all in a treeview |
| 3413 | * |
| 3414 | * \param tree Treeview object to select all in |
| 3415 | * \param rect Redraw rectangle (if redraw required) |
| 3416 | * \return true iff redraw required |
| 3417 | */ |
| 3418 | static bool_Bool treeview_select_all(treeview *tree, struct rect *rect) |
| 3419 | { |
| 3420 | struct treeview_selection_walk_data sw; |
| 3421 | |
| 3422 | rect->x0 = 0; |
| 3423 | rect->y0 = 0; |
| 3424 | rect->x1 = REDRAW_MAX8000; |
| 3425 | rect->y1 = 0; |
| 3426 | |
| 3427 | sw.purpose = TREEVIEW_WALK_SELECT_ALL; |
| 3428 | sw.data.redraw.required = false0; |
| 3429 | sw.data.redraw.rect = rect; |
| 3430 | sw.current_y = treeview__get_search_height(tree); |
| 3431 | |
| 3432 | treeview_walk_internal(tree, tree->root, |
| 3433 | TREEVIEW_WALK_MODE_DISPLAY, NULL((void*)0), |
| 3434 | treeview_node_selection_walk_cb, &sw); |
| 3435 | |
| 3436 | return sw.data.redraw.required; |
| 3437 | } |
| 3438 | |
| 3439 | |
| 3440 | /** |
| 3441 | * Commit a current selection drag, modifying the node's selection state. |
| 3442 | * |
| 3443 | * \param tree Treeview object to commit drag selection in |
| 3444 | */ |
| 3445 | static void treeview_commit_selection_drag(treeview *tree) |
| 3446 | { |
| 3447 | struct treeview_selection_walk_data sw; |
| 3448 | |
| 3449 | sw.purpose = TREEVIEW_WALK_COMMIT_SELECT_DRAG; |
| 3450 | sw.current_y = treeview__get_search_height(tree); |
| 3451 | |
| 3452 | if (tree->drag.start.y > tree->drag.prev.y) { |
| 3453 | sw.data.drag.sel_min = tree->drag.prev.y; |
| 3454 | sw.data.drag.sel_max = tree->drag.start.y; |
| 3455 | } else { |
| 3456 | sw.data.drag.sel_min = tree->drag.start.y; |
| 3457 | sw.data.drag.sel_max = tree->drag.prev.y; |
| 3458 | } |
| 3459 | |
| 3460 | treeview_walk_internal(tree, tree->root, |
| 3461 | TREEVIEW_WALK_MODE_DISPLAY, NULL((void*)0), |
| 3462 | treeview_node_selection_walk_cb, &sw); |
| 3463 | } |
| 3464 | |
| 3465 | |
| 3466 | /** |
| 3467 | * Yank a selection to the node move list. |
| 3468 | * |
| 3469 | * \param tree Treeview object to yank selection from |
| 3470 | * \param fixed Treeview node that should not be yanked |
| 3471 | */ |
| 3472 | static void treeview_move_yank_selection(treeview *tree, treeview_node *fixed) |
| 3473 | { |
| 3474 | struct treeview_selection_walk_data sw; |
| 3475 | |
| 3476 | sw.purpose = TREEVIEW_WALK_YANK_SELECTION; |
| 3477 | sw.data.yank.fixed = fixed; |
| 3478 | sw.data.yank.prev = NULL((void*)0); |
| 3479 | sw.tree = tree; |
| 3480 | |
| 3481 | treeview_walk_internal(tree, tree->root, |
| 3482 | TREEVIEW_WALK_MODE_DISPLAY, NULL((void*)0), |
| 3483 | treeview_node_selection_walk_cb, &sw); |
| 3484 | } |
| 3485 | |
| 3486 | |
| 3487 | /** |
| 3488 | * Copy a selection to the clipboard. |
| 3489 | * |
| 3490 | * \param tree Treeview object to yank selection from |
| 3491 | */ |
| 3492 | static void treeview_copy_selection(treeview *tree) |
| 3493 | { |
| 3494 | struct treeview_selection_walk_data sw; |
| 3495 | nserror err; |
| 3496 | |
| 3497 | sw.purpose = TREEVIEW_WALK_COPY_SELECTION; |
| 3498 | sw.data.copy.text = NULL((void*)0); |
| 3499 | sw.data.copy.len = 0; |
| 3500 | sw.tree = tree; |
| 3501 | |
| 3502 | err = treeview_walk_internal(tree, tree->root, |
| 3503 | TREEVIEW_WALK_MODE_DISPLAY, NULL((void*)0), |
| 3504 | treeview_node_selection_walk_cb, &sw); |
| 3505 | if (err != NSERROR_OK) { |
| 3506 | return; |
| 3507 | } |
| 3508 | |
| 3509 | if (sw.data.copy.text != NULL((void*)0)) { |
| 3510 | guit->clipboard->set(sw.data.copy.text, |
| 3511 | sw.data.copy.len - 1, NULL((void*)0), 0); |
| 3512 | free(sw.data.copy.text); |
| 3513 | } |
| 3514 | } |
| 3515 | |
| 3516 | |
| 3517 | /** |
| 3518 | * Delete a selection. |
| 3519 | * |
| 3520 | * \param tree Treeview object to delete selected nodes from |
| 3521 | * \param rect Updated to redraw rectangle |
| 3522 | * \return true iff redraw required. |
| 3523 | */ |
| 3524 | static bool_Bool treeview_delete_selection(treeview *tree, struct rect *rect) |
| 3525 | { |
| 3526 | struct treeview_selection_walk_data sw; |
| 3527 | |
| 3528 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 3528, __extension__ __PRETTY_FUNCTION__ )); |
| 3529 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 3529, __extension__ __PRETTY_FUNCTION__)); |
| 3530 | |
| 3531 | rect->x0 = 0; |
| 3532 | rect->y0 = 0; |
| 3533 | rect->x1 = REDRAW_MAX8000; |
| 3534 | rect->y1 = treeview__get_display_height(tree); |
| 3535 | |
| 3536 | sw.purpose = TREEVIEW_WALK_DELETE_SELECTION; |
| 3537 | sw.data.redraw.required = false0; |
| 3538 | sw.data.redraw.rect = rect; |
| 3539 | sw.current_y = treeview__get_search_height(tree); |
| 3540 | sw.tree = tree; |
| 3541 | |
| 3542 | treeview_walk_internal(tree, tree->root, |
| 3543 | TREEVIEW_WALK_MODE_DISPLAY, NULL((void*)0), |
| 3544 | treeview_node_selection_walk_cb, &sw); |
| 3545 | |
| 3546 | return sw.data.redraw.required; |
| 3547 | } |
| 3548 | |
| 3549 | |
| 3550 | /** |
| 3551 | * Propagate selection to visible descendants of selected nodes. |
| 3552 | * |
| 3553 | * \param tree Treeview object to propagate selection in |
| 3554 | * \param rect Redraw rectangle (if redraw required) |
| 3555 | * \return true iff redraw required |
| 3556 | */ |
| 3557 | static bool_Bool treeview_propagate_selection(treeview *tree, struct rect *rect) |
| 3558 | { |
| 3559 | struct treeview_selection_walk_data sw; |
| 3560 | |
| 3561 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 3561, __extension__ __PRETTY_FUNCTION__ )); |
| 3562 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 3562, __extension__ __PRETTY_FUNCTION__)); |
| 3563 | |
| 3564 | rect->x0 = 0; |
| 3565 | rect->y0 = 0; |
| 3566 | rect->x1 = REDRAW_MAX8000; |
| 3567 | rect->y1 = 0; |
| 3568 | |
| 3569 | sw.purpose = TREEVIEW_WALK_PROPAGATE_SELECTION; |
| 3570 | sw.data.redraw.required = false0; |
| 3571 | sw.data.redraw.rect = rect; |
| 3572 | sw.current_y = treeview__get_search_height(tree); |
| 3573 | sw.tree = tree; |
| 3574 | |
| 3575 | treeview_walk_internal(tree, tree->root, |
| 3576 | TREEVIEW_WALK_MODE_DISPLAY, NULL((void*)0), |
| 3577 | treeview_node_selection_walk_cb, &sw); |
| 3578 | |
| 3579 | return sw.data.redraw.required; |
| 3580 | } |
| 3581 | |
| 3582 | |
| 3583 | /** |
| 3584 | * Move a selection according to the current move drag. |
| 3585 | * |
| 3586 | * \param tree Treeview object to move selected nodes in |
| 3587 | * \param rect Redraw rectangle |
| 3588 | * \return NSERROR_OK on success else appropriate error code |
| 3589 | */ |
| 3590 | static nserror treeview_move_selection(treeview *tree, struct rect *rect) |
| 3591 | { |
| 3592 | treeview_node *node, *next, *parent; |
| 3593 | treeview_node *relation; |
| 3594 | enum treeview_relationship relationship; |
| 3595 | int height; |
| 3596 | |
| 3597 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 3597, __extension__ __PRETTY_FUNCTION__ )); |
| 3598 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 3598, __extension__ __PRETTY_FUNCTION__)); |
| 3599 | assert(tree->root->children != NULL)((tree->root->children != ((void*)0)) ? (void) (0) : __assert_fail ("tree->root->children != NULL", "desktop/treeview.c", 3599, __extension__ __PRETTY_FUNCTION__)); |
| 3600 | assert(tree->move.target_pos != TV_TARGET_NONE)((tree->move.target_pos != TV_TARGET_NONE) ? (void) (0) : __assert_fail ("tree->move.target_pos != TV_TARGET_NONE", "desktop/treeview.c" , 3600, __extension__ __PRETTY_FUNCTION__)); |
| 3601 | |
| 3602 | height = tree->root->height; |
| 3603 | |
| 3604 | /* Identify target location */ |
| 3605 | switch (tree->move.target_pos) { |
| 3606 | case TV_TARGET_ABOVE: |
| 3607 | if (tree->move.target == NULL((void*)0)) { |
| 3608 | /* Target: After last child of root */ |
| 3609 | relation = tree->root->children; |
| 3610 | while (relation->next_sib != NULL((void*)0)) { |
| 3611 | relation = relation->next_sib; |
| 3612 | } |
| 3613 | relationship = TREE_REL_NEXT_SIBLING; |
| 3614 | |
| 3615 | } else if (tree->move.target->prev_sib != NULL((void*)0)) { |
| 3616 | /* Target: After previous sibling */ |
| 3617 | relation = tree->move.target->prev_sib; |
| 3618 | relationship = TREE_REL_NEXT_SIBLING; |
| 3619 | |
| 3620 | } else { |
| 3621 | /* Target: Target: First child of parent */ |
| 3622 | assert(tree->move.target->parent != NULL)((tree->move.target->parent != ((void*)0)) ? (void) (0) : __assert_fail ("tree->move.target->parent != NULL", "desktop/treeview.c" , 3622, __extension__ __PRETTY_FUNCTION__)); |
| 3623 | relation = tree->move.target->parent; |
| 3624 | relationship = TREE_REL_FIRST_CHILD; |
| 3625 | } |
| 3626 | break; |
| 3627 | |
| 3628 | case TV_TARGET_INSIDE: |
| 3629 | assert(tree->move.target != NULL)((tree->move.target != ((void*)0)) ? (void) (0) : __assert_fail ("tree->move.target != NULL", "desktop/treeview.c", 3629, __extension__ __PRETTY_FUNCTION__)); |
| 3630 | relation = tree->move.target; |
| 3631 | relationship = TREE_REL_FIRST_CHILD; |
| 3632 | break; |
| 3633 | |
| 3634 | case TV_TARGET_BELOW: |
| 3635 | assert(tree->move.target != NULL)((tree->move.target != ((void*)0)) ? (void) (0) : __assert_fail ("tree->move.target != NULL", "desktop/treeview.c", 3635, __extension__ __PRETTY_FUNCTION__)); |
| 3636 | relation = tree->move.target; |
| 3637 | relationship = TREE_REL_NEXT_SIBLING; |
| 3638 | break; |
| 3639 | |
| 3640 | default: |
| 3641 | NSLOG(netsurf, INFO, "Bad drop target for move.")do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_INFO, "desktop/treeview.c", sizeof("desktop/treeview.c" ) - 1, __PRETTY_FUNCTION__, sizeof(__PRETTY_FUNCTION__) - 1, 3641 , }; nslog__log(&_nslog_ctx, "Bad drop target for move.") ; } } while(0); |
| 3642 | return NSERROR_BAD_PARAMETER; |
| 3643 | } |
| 3644 | |
| 3645 | if (relationship == TREE_REL_FIRST_CHILD) { |
| 3646 | parent = relation; |
| 3647 | } else { |
| 3648 | parent = relation->parent; |
| 3649 | } |
| 3650 | |
| 3651 | /* Move all selected nodes from treeview to tree->move.root */ |
| 3652 | treeview_move_yank_selection(tree, relation); |
| 3653 | |
| 3654 | /* Move all nodes on tree->move.root to target location */ |
| 3655 | for (node = tree->move.root; node != NULL((void*)0); node = next) { |
| 3656 | next = node->next_sib; |
| 3657 | |
| 3658 | if (node == relation) { |
| 3659 | continue; |
| 3660 | } |
| 3661 | |
| 3662 | if (!(parent->flags & TV_NFLAGS_EXPANDED)) { |
| 3663 | if (node->flags & TV_NFLAGS_EXPANDED) |
| 3664 | treeview_node_contract_internal(tree, node); |
| 3665 | node->flags &= ~TV_NFLAGS_SELECTED; |
| 3666 | } |
| 3667 | |
| 3668 | treeview_insert_node(tree, node, relation, relationship); |
| 3669 | |
| 3670 | relation = node; |
| 3671 | relationship = TREE_REL_NEXT_SIBLING; |
| 3672 | } |
| 3673 | tree->move.root = NULL((void*)0); |
| 3674 | |
| 3675 | /* Tell window, if height has changed */ |
| 3676 | if (height != tree->root->height) |
| 3677 | treeview__cw_update_size(tree, -1, tree->root->height); |
| 3678 | |
| 3679 | /* TODO: Deal with redraw area properly */ |
| 3680 | rect->x0 = 0; |
| 3681 | rect->y0 = 0; |
| 3682 | rect->x1 = REDRAW_MAX8000; |
| 3683 | rect->y1 = REDRAW_MAX8000; |
| 3684 | |
| 3685 | return NSERROR_OK; |
| 3686 | } |
| 3687 | |
| 3688 | |
| 3689 | /** |
| 3690 | * context for treeview launch action |
| 3691 | */ |
| 3692 | struct treeview_launch_walk_data { |
| 3693 | int selected_depth; |
| 3694 | treeview *tree; |
| 3695 | }; |
| 3696 | |
| 3697 | |
| 3698 | /** |
| 3699 | * Treewalk node walk backward callback for tracking folder selection. |
| 3700 | */ |
| 3701 | static nserror |
| 3702 | treeview_node_launch_walk_bwd_cb(treeview_node *n, void *ctx, bool_Bool *end) |
| 3703 | { |
| 3704 | struct treeview_launch_walk_data *lw = ctx; |
| 3705 | |
| 3706 | if (n->type == TREE_NODE_FOLDER && n->flags == TV_NFLAGS_SELECTED) { |
| 3707 | lw->selected_depth--; |
| 3708 | } |
| 3709 | |
| 3710 | return NSERROR_OK; |
| 3711 | } |
| 3712 | |
| 3713 | |
| 3714 | /** |
| 3715 | * Treewalk node walk forward callback for launching nodes. |
| 3716 | * |
| 3717 | * \param n current node |
| 3718 | * \param ctx node launch context |
| 3719 | * \param skip_children flag to allow children to be skipped |
| 3720 | * \param end flag to allow iteration to be finished early. |
| 3721 | * \return NSERROR_OK on success else error code. |
| 3722 | */ |
| 3723 | static nserror |
| 3724 | treeview_node_launch_walk_fwd_cb(treeview_node *n, |
| 3725 | void *ctx, |
| 3726 | bool_Bool *skip_children, |
| 3727 | bool_Bool *end) |
| 3728 | { |
| 3729 | struct treeview_launch_walk_data *lw = ctx; |
| 3730 | nserror ret = NSERROR_OK; |
| 3731 | |
| 3732 | if (n->type == TREE_NODE_FOLDER && n->flags & TV_NFLAGS_SELECTED) { |
| 3733 | lw->selected_depth++; |
| 3734 | |
| 3735 | } else if (n->type == TREE_NODE_ENTRY && |
| 3736 | (n->flags & TV_NFLAGS_SELECTED || |
| 3737 | lw->selected_depth > 0)) { |
| 3738 | struct treeview_node_msg msg; |
| 3739 | msg.msg = TREE_MSG_NODE_LAUNCH; |
| 3740 | msg.data.node_launch.mouse = BROWSER_MOUSE_HOVER; |
| 3741 | ret = lw->tree->callbacks->entry(msg, n->client_data); |
| 3742 | } |
| 3743 | |
| 3744 | return ret; |
| 3745 | } |
| 3746 | |
| 3747 | |
| 3748 | /** |
| 3749 | * Launch a selection. |
| 3750 | * |
| 3751 | * \note Selected entries are launched. Entries that are descendants |
| 3752 | * of selected folders are also launched. |
| 3753 | * |
| 3754 | * \param tree Treeview object to launch selected nodes in |
| 3755 | * \return NSERROR_OK on success, appropriate error otherwise |
| 3756 | */ |
| 3757 | static nserror treeview_launch_selection(treeview *tree) |
| 3758 | { |
| 3759 | struct treeview_launch_walk_data lw; |
| 3760 | |
| 3761 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 3761, __extension__ __PRETTY_FUNCTION__ )); |
| 3762 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 3762, __extension__ __PRETTY_FUNCTION__)); |
| 3763 | |
| 3764 | lw.selected_depth = 0; |
| 3765 | lw.tree = tree; |
| 3766 | |
| 3767 | return treeview_walk_internal(tree, tree->root, |
| 3768 | TREEVIEW_WALK_MODE_LOGICAL_COMPLETE, |
| 3769 | treeview_node_launch_walk_bwd_cb, |
| 3770 | treeview_node_launch_walk_fwd_cb, &lw); |
| 3771 | } |
| 3772 | |
| 3773 | |
| 3774 | /* Exported interface, documented in treeview.h */ |
| 3775 | nserror |
| 3776 | treeview_get_relation(treeview *tree, |
| 3777 | treeview_node **relation, |
| 3778 | enum treeview_relationship *rel, |
| 3779 | bool_Bool at_y, |
| 3780 | int y) |
| 3781 | { |
| 3782 | treeview_node *n; |
| 3783 | |
| 3784 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 3784, __extension__ __PRETTY_FUNCTION__ )); |
| 3785 | |
| 3786 | if (at_y) { |
| 3787 | n = treeview_y_node(tree, y); |
| 3788 | |
| 3789 | } else { |
| 3790 | n = treeview_get_first_selected(tree); |
| 3791 | } |
| 3792 | |
| 3793 | if (n != NULL((void*)0) && n->parent != NULL((void*)0)) { |
| 3794 | if (n == n->parent->children) { |
| 3795 | /* First child */ |
| 3796 | *relation = n->parent; |
| 3797 | *rel = TREE_REL_FIRST_CHILD; |
| 3798 | } else { |
| 3799 | /* Not first child */ |
| 3800 | *relation = n->prev_sib; |
| 3801 | *rel = TREE_REL_NEXT_SIBLING; |
| 3802 | } |
| 3803 | } else { |
| 3804 | if (tree->root->children == NULL((void*)0)) { |
| 3805 | /* First child of root */ |
| 3806 | *relation = tree->root; |
| 3807 | *rel = TREE_REL_FIRST_CHILD; |
| 3808 | } else { |
| 3809 | /* Last child of root */ |
| 3810 | n = tree->root->children; |
| 3811 | while (n->next_sib != NULL((void*)0)) |
| 3812 | n = n->next_sib; |
| 3813 | *relation = n; |
| 3814 | *rel = TREE_REL_NEXT_SIBLING; |
| 3815 | } |
| 3816 | } |
| 3817 | |
| 3818 | return NSERROR_OK; |
| 3819 | } |
| 3820 | |
| 3821 | |
| 3822 | /** |
| 3823 | * context for treeview keyboard action |
| 3824 | */ |
| 3825 | struct treeview_nav_state { |
| 3826 | treeview *tree; |
| 3827 | treeview_node *prev; |
| 3828 | treeview_node *curr; |
| 3829 | treeview_node *next; |
| 3830 | treeview_node *last; |
| 3831 | int n_selected; |
| 3832 | int prev_n_selected; |
| 3833 | }; |
| 3834 | |
| 3835 | |
| 3836 | /** |
| 3837 | * Treewalk node callback for handling mouse action. |
| 3838 | * |
| 3839 | * \param node current node |
| 3840 | * \param ctx node context |
| 3841 | * \param skip_children flag to allow children to be skipped |
| 3842 | * \param end flag to allow iteration to be finished early. |
| 3843 | * \return NSERROR_OK on success else error code. |
| 3844 | */ |
| 3845 | static nserror |
| 3846 | treeview_node_nav_cb(treeview_node *node, |
| 3847 | void *ctx, |
| 3848 | bool_Bool *skip_children, |
| 3849 | bool_Bool *end) |
| 3850 | { |
| 3851 | struct treeview_nav_state *ns = ctx; |
| 3852 | |
| 3853 | if (node == ns->tree->root) |
| 3854 | return NSERROR_OK; |
| 3855 | |
| 3856 | if (node->flags & TV_NFLAGS_SELECTED) { |
| 3857 | ns->n_selected++; |
| 3858 | if (ns->curr == NULL((void*)0)) { |
| 3859 | ns->curr = node; |
| 3860 | } |
| 3861 | |
| 3862 | } else { |
| 3863 | if (ns->n_selected == 0) { |
| 3864 | ns->prev = node; |
| 3865 | |
| 3866 | } else if (ns->prev_n_selected < ns->n_selected) { |
| 3867 | ns->next = node; |
| 3868 | ns->prev_n_selected = ns->n_selected; |
| 3869 | } |
| 3870 | } |
| 3871 | ns->last = node; |
| 3872 | |
| 3873 | return NSERROR_OK; |
| 3874 | } |
| 3875 | |
| 3876 | |
| 3877 | /** |
| 3878 | * Handle keyboard navigation. |
| 3879 | * |
| 3880 | * \note Selected entries are launched. |
| 3881 | * Entries that are descendants of selected folders are also launched. |
| 3882 | * |
| 3883 | * \param tree Treeview object to launch selected nodes in |
| 3884 | * \param key The ucs4 character codepoint |
| 3885 | * \param rect Updated to redraw rectangle |
| 3886 | * \return true if treeview needs redraw, false otherwise |
| 3887 | */ |
| 3888 | static bool_Bool |
| 3889 | treeview_keyboard_navigation(treeview *tree, uint32_t key, struct rect *rect) |
| 3890 | { |
| 3891 | struct treeview_nav_state ns = { |
| 3892 | .tree = tree, |
| 3893 | .prev = NULL((void*)0), |
| 3894 | .curr = NULL((void*)0), |
| 3895 | .next = NULL((void*)0), |
| 3896 | .last = NULL((void*)0), |
| 3897 | .n_selected = 0, |
| 3898 | .prev_n_selected = 0 |
| 3899 | }; |
| 3900 | int search_height = treeview__get_search_height(tree); |
| 3901 | int h = treeview__get_display_height(tree) + search_height; |
| 3902 | bool_Bool redraw = false0; |
| 3903 | struct treeview_node *scroll_to_node = NULL((void*)0); |
| 3904 | |
| 3905 | /* Fill out the nav. state struct, by examining the current selection |
| 3906 | * state */ |
| 3907 | treeview_walk_internal(tree, tree->root, |
| 3908 | TREEVIEW_WALK_MODE_DISPLAY, NULL((void*)0), |
| 3909 | treeview_node_nav_cb, &ns); |
| 3910 | |
| 3911 | scroll_to_node = ns.curr; |
| 3912 | |
| 3913 | if (tree->search.search == false0) { |
| 3914 | if (ns.next == NULL((void*)0)) |
| 3915 | ns.next = tree->root->children; |
| 3916 | if (ns.prev == NULL((void*)0)) |
| 3917 | ns.prev = ns.last; |
| 3918 | } |
| 3919 | |
| 3920 | /* Clear any existing selection */ |
| 3921 | redraw = treeview_clear_selection(tree, rect); |
Value stored to 'redraw' is never read | |
| 3922 | |
| 3923 | switch (key) { |
| 3924 | case NS_KEY_LEFT: |
| 3925 | if (tree->search.search == true1) { |
| 3926 | break; |
| 3927 | } |
| 3928 | if (ns.curr != NULL((void*)0) && |
| 3929 | ns.curr->parent != NULL((void*)0) && |
| 3930 | ns.curr->parent->type != TREE_NODE_ROOT) { |
| 3931 | /* Step to parent */ |
| 3932 | ns.curr->parent->flags |= TV_NFLAGS_SELECTED; |
| 3933 | scroll_to_node = ns.curr->parent; |
| 3934 | |
| 3935 | } else if (ns.curr != NULL((void*)0) && tree->root->children != NULL((void*)0)) { |
| 3936 | /* Select first node in tree */ |
| 3937 | tree->root->children->flags |= TV_NFLAGS_SELECTED; |
| 3938 | scroll_to_node = tree->root->children; |
| 3939 | } |
| 3940 | break; |
| 3941 | |
| 3942 | case NS_KEY_RIGHT: |
| 3943 | if (ns.curr != NULL((void*)0)) { |
| 3944 | if (!(ns.curr->flags & TV_NFLAGS_EXPANDED)) { |
| 3945 | /* Toggle node to expanded */ |
| 3946 | treeview_node_expand_internal(tree, ns.curr); |
| 3947 | if (ns.curr->children != NULL((void*)0)) { |
| 3948 | /* Step to first child */ |
| 3949 | ns.curr->children->flags |= |
| 3950 | TV_NFLAGS_SELECTED; |
| 3951 | scroll_to_node = ns.curr->children; |
| 3952 | } else { |
| 3953 | /* Retain current node selection */ |
| 3954 | ns.curr->flags |= TV_NFLAGS_SELECTED; |
| 3955 | } |
| 3956 | } else { |
| 3957 | /* Toggle node to contracted */ |
| 3958 | treeview_node_contract_internal(tree, ns.curr); |
| 3959 | /* Retain current node selection */ |
| 3960 | ns.curr->flags |= TV_NFLAGS_SELECTED; |
| 3961 | } |
| 3962 | |
| 3963 | } else if (ns.curr != NULL((void*)0)) { |
| 3964 | /* Retain current node selection */ |
| 3965 | ns.curr->flags |= TV_NFLAGS_SELECTED; |
| 3966 | } |
| 3967 | break; |
| 3968 | |
| 3969 | case NS_KEY_UP: |
| 3970 | if (ns.prev != NULL((void*)0)) { |
| 3971 | /* Step to previous node */ |
| 3972 | ns.prev->flags |= TV_NFLAGS_SELECTED; |
| 3973 | scroll_to_node = ns.prev; |
| 3974 | } |
| 3975 | break; |
| 3976 | |
| 3977 | case NS_KEY_DOWN: |
| 3978 | if (ns.next != NULL((void*)0)) { |
| 3979 | /* Step to next node */ |
| 3980 | ns.next->flags |= TV_NFLAGS_SELECTED; |
| 3981 | scroll_to_node = ns.next; |
| 3982 | } |
| 3983 | break; |
| 3984 | |
| 3985 | default: |
| 3986 | break; |
| 3987 | } |
| 3988 | |
| 3989 | treeview__cw_scroll_to_node(tree, scroll_to_node); |
| 3990 | |
| 3991 | /* TODO: Deal with redraw area properly */ |
| 3992 | rect->x0 = 0; |
| 3993 | rect->y0 = 0; |
| 3994 | rect->x1 = REDRAW_MAX8000; |
| 3995 | if (treeview__get_display_height(tree) + search_height > h) |
| 3996 | rect->y1 = treeview__get_display_height(tree) + search_height; |
| 3997 | else |
| 3998 | rect->y1 = h; |
| 3999 | redraw = true1; |
| 4000 | |
| 4001 | return redraw; |
| 4002 | } |
| 4003 | |
| 4004 | |
| 4005 | /* Exported interface, documented in treeview.h */ |
| 4006 | bool_Bool treeview_keypress(treeview *tree, uint32_t key) |
| 4007 | { |
| 4008 | struct rect r; /**< Redraw rectangle */ |
| 4009 | bool_Bool redraw = false0; |
| 4010 | |
| 4011 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 4011, __extension__ __PRETTY_FUNCTION__ )); |
| 4012 | |
| 4013 | /* Pass to any textarea, if editing in progress */ |
| 4014 | if (tree->edit.textarea != NULL((void*)0)) { |
| 4015 | switch (key) { |
| 4016 | case NS_KEY_ESCAPE: |
| 4017 | treeview_edit_cancel(tree, true1); |
| 4018 | return true1; |
| 4019 | case NS_KEY_NL: |
| 4020 | case NS_KEY_CR: |
| 4021 | treeview_edit_done(tree); |
| 4022 | return true1; |
| 4023 | default: |
| 4024 | return textarea_keypress(tree->edit.textarea, key); |
| 4025 | } |
| 4026 | } else if (tree->search.active == true1) { |
| 4027 | switch (key) { |
| 4028 | case NS_KEY_ESCAPE: |
| 4029 | treeview__search_cancel(tree, false0); |
| 4030 | return true1; |
| 4031 | case NS_KEY_NL: |
| 4032 | case NS_KEY_CR: |
| 4033 | return true1; |
| 4034 | default: |
| 4035 | return textarea_keypress(tree->search.textarea, key); |
| 4036 | } |
| 4037 | } |
| 4038 | |
| 4039 | /* Keypress to be handled by treeview */ |
| 4040 | switch (key) { |
| 4041 | case NS_KEY_SELECT_ALL: |
| 4042 | redraw = treeview_select_all(tree, &r); |
| 4043 | break; |
| 4044 | case NS_KEY_COPY_SELECTION: |
| 4045 | treeview_copy_selection(tree); |
| 4046 | break; |
| 4047 | case NS_KEY_DELETE_LEFT: |
| 4048 | case NS_KEY_DELETE_RIGHT: |
| 4049 | redraw = treeview_delete_selection(tree, &r); |
| 4050 | |
| 4051 | if (tree->flags & TREEVIEW_DEL_EMPTY_DIRS) { |
| 4052 | int h = tree->root->height; |
| 4053 | /* Delete any empty nodes */ |
| 4054 | treeview_delete_empty_nodes(tree, false0); |
| 4055 | |
| 4056 | /* Inform front end of change in dimensions */ |
| 4057 | if (tree->root->height != h) { |
| 4058 | r.y0 = 0; |
| 4059 | treeview__cw_update_size(tree, -1, |
| 4060 | tree->root->height); |
| 4061 | } |
| 4062 | } |
| 4063 | break; |
| 4064 | case NS_KEY_CR: |
| 4065 | case NS_KEY_NL: |
| 4066 | treeview_launch_selection(tree); |
| 4067 | break; |
| 4068 | case NS_KEY_ESCAPE: |
| 4069 | case NS_KEY_CLEAR_SELECTION: |
| 4070 | redraw = treeview_clear_selection(tree, &r); |
| 4071 | break; |
| 4072 | case NS_KEY_LEFT: |
| 4073 | case NS_KEY_RIGHT: |
| 4074 | case NS_KEY_UP: |
| 4075 | case NS_KEY_DOWN: |
| 4076 | redraw = treeview_keyboard_navigation(tree, key, &r); |
| 4077 | break; |
| 4078 | default: |
| 4079 | return false0; |
| 4080 | } |
| 4081 | |
| 4082 | if (redraw) { |
| 4083 | treeview__cw_invalidate_area(tree, &r); |
| 4084 | } |
| 4085 | |
| 4086 | return true1; |
| 4087 | } |
| 4088 | |
| 4089 | |
| 4090 | /** |
| 4091 | * Set the drag&drop drop indicator |
| 4092 | * |
| 4093 | * \param tree Treeview object to set node indicator in |
| 4094 | * \param need_redraw True iff we already have a redraw region |
| 4095 | * \param target The treeview node with mouse pointer over it |
| 4096 | * \param node_height The height of node |
| 4097 | * \param node_y The Y coord of the top of target node |
| 4098 | * \param mouse_y Y coord of mouse position |
| 4099 | * \param rect Redraw rectangle (if redraw required) |
| 4100 | * \return true iff redraw required |
| 4101 | */ |
| 4102 | static bool_Bool |
| 4103 | treeview_set_move_indicator(treeview *tree, |
| 4104 | bool_Bool need_redraw, |
| 4105 | treeview_node *target, |
| 4106 | int node_height, |
| 4107 | int node_y, |
| 4108 | int mouse_y, |
| 4109 | struct rect *rect) |
| 4110 | { |
| 4111 | treeview_node *orig = target; |
| 4112 | enum treeview_target_pos target_pos; |
| 4113 | int mouse_pos = mouse_y - node_y; |
| 4114 | int x; |
| 4115 | |
| 4116 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 4116, __extension__ __PRETTY_FUNCTION__ )); |
| 4117 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 4117, __extension__ __PRETTY_FUNCTION__)); |
| 4118 | assert(tree->root->children != NULL)((tree->root->children != ((void*)0)) ? (void) (0) : __assert_fail ("tree->root->children != NULL", "desktop/treeview.c", 4118, __extension__ __PRETTY_FUNCTION__)); |
| 4119 | assert(target != NULL)((target != ((void*)0)) ? (void) (0) : __assert_fail ("target != NULL" , "desktop/treeview.c", 4119, __extension__ __PRETTY_FUNCTION__ )); |
| 4120 | |
| 4121 | if (target->flags & TV_NFLAGS_SELECTED) { |
| 4122 | /* Find top selected ancestor */ |
| 4123 | while (target->parent && |
| 4124 | target->parent->flags & TV_NFLAGS_SELECTED) { |
| 4125 | target = target->parent; |
| 4126 | } |
| 4127 | |
| 4128 | /* Find top adjacent selected sibling */ |
| 4129 | while (target->prev_sib && |
| 4130 | target->prev_sib->flags & TV_NFLAGS_SELECTED) { |
| 4131 | target = target->prev_sib; |
| 4132 | } |
| 4133 | target_pos = TV_TARGET_ABOVE; |
| 4134 | |
| 4135 | } else switch (target->type) { |
| 4136 | case TREE_NODE_FOLDER: |
| 4137 | if (mouse_pos <= node_height / 4) { |
| 4138 | target_pos = TV_TARGET_ABOVE; |
| 4139 | } else if (mouse_pos <= (3 * node_height) / 4 || |
| 4140 | target->flags & TV_NFLAGS_EXPANDED) { |
| 4141 | target_pos = TV_TARGET_INSIDE; |
| 4142 | } else { |
| 4143 | target_pos = TV_TARGET_BELOW; |
| 4144 | } |
| 4145 | break; |
| 4146 | |
| 4147 | case TREE_NODE_ENTRY: |
| 4148 | if (mouse_pos <= node_height / 2) { |
| 4149 | target_pos = TV_TARGET_ABOVE; |
| 4150 | } else { |
| 4151 | target_pos = TV_TARGET_BELOW; |
| 4152 | } |
| 4153 | break; |
| 4154 | |
| 4155 | default: |
| 4156 | assert(target->type != TREE_NODE_ROOT)((target->type != TREE_NODE_ROOT) ? (void) (0) : __assert_fail ("target->type != TREE_NODE_ROOT", "desktop/treeview.c", 4156 , __extension__ __PRETTY_FUNCTION__)); |
| 4157 | return false0; |
| 4158 | } |
| 4159 | |
| 4160 | if (target_pos == tree->move.target_pos && |
| 4161 | target == tree->move.target) { |
| 4162 | /* No change */ |
| 4163 | return need_redraw; |
| 4164 | } |
| 4165 | |
| 4166 | if (tree->move.target_pos != TV_TARGET_NONE) { |
| 4167 | /* Need to clear old indicator position */ |
| 4168 | if (need_redraw) { |
| 4169 | if (rect->x0 > tree->move.target_area.x0) |
| 4170 | rect->x0 = tree->move.target_area.x0; |
| 4171 | if (tree->move.target_area.x1 > rect->x1) |
| 4172 | rect->x1 = tree->move.target_area.x1; |
| 4173 | if (rect->y0 > tree->move.target_area.y0) |
| 4174 | rect->y0 = tree->move.target_area.y0; |
| 4175 | if (tree->move.target_area.y1 > rect->y1) |
| 4176 | rect->y1 = tree->move.target_area.y1; |
| 4177 | } else { |
| 4178 | *rect = tree->move.target_area; |
| 4179 | need_redraw = true1; |
| 4180 | } |
| 4181 | } |
| 4182 | |
| 4183 | /* Offset for ABOVE / BELOW */ |
| 4184 | if (target_pos == TV_TARGET_ABOVE) { |
| 4185 | if (target != orig) { |
| 4186 | node_y = treeview_node_y(tree, target); |
| 4187 | } |
| 4188 | node_y -= (tree_g.line_height + 1) / 2; |
| 4189 | } else if (target_pos == TV_TARGET_BELOW) { |
| 4190 | node_y += node_height - (tree_g.line_height + 1) / 2; |
| 4191 | } |
| 4192 | |
| 4193 | /* Oftsets are all relative to centred (INSIDE) */ |
| 4194 | node_y += (tree_g.line_height - |
| 4195 | treeview_res[TREE_RES_ARROW].height + 1) / 2; |
| 4196 | |
| 4197 | x = target->inset + tree_g.move_offset; |
| 4198 | |
| 4199 | /* Update target details */ |
| 4200 | tree->move.target = target; |
| 4201 | tree->move.target_pos = target_pos; |
| 4202 | tree->move.target_area.x0 = x; |
| 4203 | tree->move.target_area.y0 = node_y; |
| 4204 | tree->move.target_area.x1 = tree_g.icon_size + x; |
| 4205 | tree->move.target_area.y1 = tree_g.icon_size + node_y; |
| 4206 | |
| 4207 | if (target_pos != TV_TARGET_NONE) { |
| 4208 | /* Need to draw new indicator position */ |
| 4209 | if (need_redraw) { |
| 4210 | if (rect->x0 > tree->move.target_area.x0) |
| 4211 | rect->x0 = tree->move.target_area.x0; |
| 4212 | if (tree->move.target_area.x1 > rect->x1) |
| 4213 | rect->x1 = tree->move.target_area.x1; |
| 4214 | if (rect->y0 > tree->move.target_area.y0) |
| 4215 | rect->y0 = tree->move.target_area.y0; |
| 4216 | if (tree->move.target_area.y1 > rect->y1) |
| 4217 | rect->y1 = tree->move.target_area.y1; |
| 4218 | } else { |
| 4219 | *rect = tree->move.target_area; |
| 4220 | need_redraw = true1; |
| 4221 | } |
| 4222 | } |
| 4223 | |
| 4224 | return need_redraw; |
| 4225 | } |
| 4226 | |
| 4227 | |
| 4228 | /** |
| 4229 | * Callback for textarea_create, in desktop/treeview.h |
| 4230 | * |
| 4231 | * \param data treeview context |
| 4232 | * \param msg textarea message |
| 4233 | */ |
| 4234 | static void treeview_textarea_callback(void *data, struct textarea_msg *msg) |
| 4235 | { |
| 4236 | treeview *tree = data; |
| 4237 | struct rect *r; |
| 4238 | |
| 4239 | switch (msg->type) { |
| 4240 | case TEXTAREA_MSG_DRAG_REPORT: |
| 4241 | if (msg->data.drag == TEXTAREA_DRAG_NONE) { |
| 4242 | /* Textarea drag finished */ |
| 4243 | tree->drag.type = TV_DRAG_NONE; |
| 4244 | } else { |
| 4245 | /* Textarea drag started */ |
| 4246 | tree->drag.type = TV_DRAG_TEXTAREA; |
| 4247 | } |
| 4248 | treeview__cw_drag_status(tree, |
| 4249 | treeview__get_cw_drag_type(tree)); |
| 4250 | break; |
| 4251 | |
| 4252 | case TEXTAREA_MSG_REDRAW_REQUEST: |
| 4253 | r = &msg->data.redraw; |
| 4254 | r->x0 += tree->edit.x; |
| 4255 | r->y0 += tree->edit.y; |
| 4256 | r->x1 += tree->edit.x; |
| 4257 | r->y1 += tree->edit.y; |
| 4258 | |
| 4259 | /* Redraw the textarea */ |
| 4260 | treeview__cw_invalidate_area(tree, r); |
| 4261 | break; |
| 4262 | |
| 4263 | default: |
| 4264 | break; |
| 4265 | } |
| 4266 | } |
| 4267 | |
| 4268 | |
| 4269 | /** |
| 4270 | * Start edit of node field, at given y-coord, if editable |
| 4271 | * |
| 4272 | * \param tree Treeview object to consider editing in |
| 4273 | * \param n The treeview node to try editing |
| 4274 | * \param node_y The Y coord of the top of n |
| 4275 | * \param mouse_x X coord of mouse position |
| 4276 | * \param mouse_y Y coord of mouse position |
| 4277 | * \param rect Redraw rectangle (if redraw required) |
| 4278 | * \return true iff redraw required |
| 4279 | */ |
| 4280 | static bool_Bool |
| 4281 | treeview_edit_node_at_point(treeview *tree, |
| 4282 | treeview_node *n, |
| 4283 | int node_y, |
| 4284 | int mouse_x, |
| 4285 | int mouse_y, |
| 4286 | struct rect *rect) |
| 4287 | { |
| 4288 | struct treeview_text *field_data = NULL((void*)0); |
| 4289 | struct treeview_field *ef, *field_desc = NULL((void*)0); |
| 4290 | int pos = node_y + tree_g.line_height; |
| 4291 | int field_y = node_y; |
| 4292 | int field_x; |
| 4293 | int width, height; |
| 4294 | bool_Bool success; |
| 4295 | |
| 4296 | /* If the main field is editable, make field_data point to it */ |
| 4297 | if (n->type == TREE_NODE_ENTRY) |
| 4298 | ef = &(tree->fields[0]); |
| 4299 | else |
| 4300 | ef = &(tree->fields[tree->n_fields]); |
| 4301 | if (ef->flags & TREE_FLAG_ALLOW_EDIT) { |
| 4302 | field_data = &n->text; |
| 4303 | field_desc = ef; |
| 4304 | field_y = node_y; |
| 4305 | } |
| 4306 | |
| 4307 | /* Check for editable entry fields */ |
| 4308 | if (n->type == TREE_NODE_ENTRY && n->height != tree_g.line_height) { |
| 4309 | struct treeview_node_entry *e = (struct treeview_node_entry *)n; |
| 4310 | int i; |
| 4311 | |
| 4312 | for (i = 0; i < tree->n_fields - 1; i++) { |
| 4313 | if (mouse_y <= pos) |
| 4314 | continue; |
| 4315 | |
| 4316 | ef = &(tree->fields[i + 1]); |
| 4317 | pos += tree_g.line_height; |
| 4318 | if (mouse_y <= pos && (ef->flags & |
| 4319 | TREE_FLAG_ALLOW_EDIT)) { |
| 4320 | field_data = &e->fields[i].value; |
| 4321 | field_desc = ef; |
| 4322 | field_y = pos - tree_g.line_height; |
| 4323 | } |
| 4324 | } |
| 4325 | } |
| 4326 | |
| 4327 | if (field_data == NULL((void*)0) || field_desc == NULL((void*)0)) { |
| 4328 | /* No editable field */ |
| 4329 | return false0; |
| 4330 | } |
| 4331 | |
| 4332 | /* Get window width/height */ |
| 4333 | treeview__cw_get_window_dimensions(tree, &width, &height); |
| 4334 | |
| 4335 | /* Calculate textarea width/height */ |
| 4336 | field_x = n->inset + tree_g.step_width + tree_g.icon_step - 3; |
| 4337 | width -= field_x; |
| 4338 | height = tree_g.line_height; |
| 4339 | |
| 4340 | /* Create text area */ |
| 4341 | tree->edit.textarea = treeview__create_textarea(tree, width, height, |
| 4342 | 0x000000, 0xffffff, 0x000000, plot_style_odd.text, |
| 4343 | treeview_textarea_callback); |
| 4344 | if (tree->edit.textarea == NULL((void*)0)) { |
| 4345 | return false0; |
| 4346 | } |
| 4347 | |
| 4348 | success = textarea_set_text(tree->edit.textarea, field_data->data); |
| 4349 | if (!success) { |
| 4350 | textarea_destroy(tree->edit.textarea); |
| 4351 | return false0; |
| 4352 | } |
| 4353 | |
| 4354 | tree->edit.node = n; |
| 4355 | tree->edit.field = field_desc->field; |
| 4356 | |
| 4357 | /* Position the caret */ |
| 4358 | mouse_x -= field_x; |
| 4359 | if (mouse_x < 0) |
| 4360 | mouse_x = 0; |
| 4361 | else if (mouse_x >= width) |
| 4362 | mouse_x = width - 1; |
| 4363 | |
| 4364 | textarea_mouse_action(tree->edit.textarea, |
| 4365 | BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_CLICK_1, |
| 4366 | mouse_x, tree_g.line_height / 2); |
| 4367 | |
| 4368 | /* Position the textarea */ |
| 4369 | tree->edit.x = field_x; |
| 4370 | tree->edit.y = field_y; |
| 4371 | tree->edit.w = width; |
| 4372 | tree->edit.h = height; |
| 4373 | |
| 4374 | /* Setup redraw rectangle */ |
| 4375 | if (rect->x0 > field_x) |
| 4376 | rect->x0 = field_x; |
| 4377 | if (rect->y0 > field_y) |
| 4378 | rect->y0 = field_y; |
| 4379 | if (rect->x1 < field_x + width) |
| 4380 | rect->x1 = field_x + width; |
| 4381 | if (rect->y1 < field_y + height) |
| 4382 | rect->y1 = field_y + height; |
| 4383 | |
| 4384 | return true1; |
| 4385 | } |
| 4386 | |
| 4387 | |
| 4388 | /* Exported interface, documented in treeview.h */ |
| 4389 | void treeview_edit_selection(treeview *tree) |
| 4390 | { |
| 4391 | struct rect rect; |
| 4392 | treeview_node *n; |
| 4393 | bool_Bool redraw; |
| 4394 | int y; |
| 4395 | |
| 4396 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 4396, __extension__ __PRETTY_FUNCTION__ )); |
| 4397 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 4397, __extension__ __PRETTY_FUNCTION__)); |
| 4398 | |
| 4399 | /* Get first selected node */ |
| 4400 | n = treeview_get_first_selected(tree); |
| 4401 | |
| 4402 | if (n == NULL((void*)0)) |
| 4403 | return; |
| 4404 | |
| 4405 | /* Get node's y-position */ |
| 4406 | y = treeview_node_y(tree, n); |
| 4407 | |
| 4408 | /* Edit node at y */ |
| 4409 | redraw = treeview_edit_node_at_point(tree, n, y, |
| 4410 | 0, y + tree_g.line_height / 2, &rect); |
| 4411 | |
| 4412 | if (redraw == false0) |
| 4413 | return; |
| 4414 | |
| 4415 | /* Redraw */ |
| 4416 | rect.x0 = 0; |
| 4417 | rect.y0 = y; |
| 4418 | rect.x1 = REDRAW_MAX8000; |
| 4419 | rect.y1 = y + tree_g.line_height; |
| 4420 | treeview__cw_invalidate_area(tree, &rect); |
| 4421 | } |
| 4422 | |
| 4423 | |
| 4424 | /** |
| 4425 | * context for treeview mouse handling |
| 4426 | */ |
| 4427 | struct treeview_mouse_action { |
| 4428 | treeview *tree; |
| 4429 | browser_mouse_state mouse; |
| 4430 | int x; |
| 4431 | int y; |
| 4432 | int current_y; /* Y coordinate value of top of current node */ |
| 4433 | int search_height; |
| 4434 | }; |
| 4435 | |
| 4436 | |
| 4437 | /** |
| 4438 | * Treewalk node callback for handling mouse action. |
| 4439 | * |
| 4440 | * \param node current node |
| 4441 | * \param ctx node context |
| 4442 | * \param skip_children flag to allow children to be skipped |
| 4443 | * \param end flag to allow iteration to be finished early. |
| 4444 | * \return NSERROR_OK on success else error code. |
| 4445 | */ |
| 4446 | static nserror |
| 4447 | treeview_node_mouse_action_cb(treeview_node *node, |
| 4448 | void *ctx, |
| 4449 | bool_Bool *skip_children, |
| 4450 | bool_Bool *end) |
| 4451 | { |
| 4452 | struct treeview_mouse_action *ma = ctx; |
| 4453 | struct rect r; |
| 4454 | bool_Bool redraw = false0; |
| 4455 | bool_Bool click; |
| 4456 | int height; |
| 4457 | enum { |
| 4458 | TV_NODE_ACTION_NONE = 0, |
| 4459 | TV_NODE_ACTION_SELECTION = (1 << 0) |
| 4460 | } action = TV_NODE_ACTION_NONE; |
| 4461 | enum treeview_node_part part = TV_NODE_PART_NONE; |
| 4462 | nserror err; |
| 4463 | |
| 4464 | r.x0 = 0; |
| 4465 | r.x1 = REDRAW_MAX8000; |
| 4466 | |
| 4467 | height = (node->type == TREE_NODE_ENTRY) ? node->height : |
| 4468 | tree_g.line_height; |
| 4469 | |
| 4470 | /* Skip line if we've not reached mouse y */ |
| 4471 | if (ma->y > ma->current_y + height) { |
| 4472 | ma->current_y += height; |
| 4473 | return NSERROR_OK; /* Don't want to abort tree walk */ |
| 4474 | } |
| 4475 | |
| 4476 | /* Find where the mouse is */ |
| 4477 | if (ma->y <= ma->current_y + tree_g.line_height) { |
| 4478 | int inset = node->inset; |
| 4479 | if (ma->tree->search.search == true1) { |
| 4480 | inset = tree_g.window_padding; |
| 4481 | } |
| 4482 | if (ma->x >= inset - 1 && |
| 4483 | ma->x < inset + tree_g.step_width) { |
| 4484 | /* Over expansion toggle */ |
| 4485 | part = TV_NODE_PART_TOGGLE; |
| 4486 | |
| 4487 | } else if (ma->x >= inset + tree_g.step_width && |
| 4488 | ma->x < inset + tree_g.step_width + |
| 4489 | tree_g.icon_step + node->text.width) { |
| 4490 | /* On node */ |
| 4491 | part = TV_NODE_PART_ON_NODE; |
| 4492 | } |
| 4493 | } else if (node->type == TREE_NODE_ENTRY && |
| 4494 | height > tree_g.line_height) { |
| 4495 | /* Expanded entries */ |
| 4496 | int x = node->inset + tree_g.step_width + tree_g.icon_step; |
| 4497 | int y = ma->current_y + tree_g.line_height; |
| 4498 | int i; |
| 4499 | struct treeview_node_entry *entry = |
| 4500 | (struct treeview_node_entry *)node; |
| 4501 | for (i = 0; i < ma->tree->n_fields - 1; i++) { |
| 4502 | struct treeview_field *ef = &(ma->tree->fields[i + 1]); |
| 4503 | |
| 4504 | if (ma->y > y + tree_g.line_height) { |
| 4505 | y += tree_g.line_height; |
| 4506 | continue; |
| 4507 | } |
| 4508 | |
| 4509 | if (ef->flags & TREE_FLAG_SHOW_NAME) { |
| 4510 | int max_width = ma->tree->field_width; |
| 4511 | |
| 4512 | if (ma->x >= x + max_width - ef->value.width - |
| 4513 | tree_g.step_width && |
| 4514 | ma->x < x + max_width - |
| 4515 | tree_g.step_width) { |
| 4516 | /* On a field name */ |
| 4517 | part = TV_NODE_PART_ON_NODE; |
| 4518 | |
| 4519 | } else if (ma->x >= x + max_width && |
| 4520 | ma->x < x + max_width + |
| 4521 | entry->fields[i].value.width) { |
| 4522 | /* On a field value */ |
| 4523 | part = TV_NODE_PART_ON_NODE; |
| 4524 | } |
| 4525 | } else { |
| 4526 | if (ma->x >= x && ma->x < x + |
| 4527 | entry->fields[i].value.width) { |
| 4528 | /* On a field value */ |
| 4529 | part = TV_NODE_PART_ON_NODE; |
| 4530 | } |
| 4531 | } |
| 4532 | |
| 4533 | break; |
| 4534 | } |
| 4535 | } |
| 4536 | |
| 4537 | /* Record what position / part a drag started on */ |
| 4538 | if (ma->mouse & (BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_PRESS_2) && |
| 4539 | ma->tree->drag.type == TV_DRAG_NONE) { |
| 4540 | ma->tree->drag.selected = node->flags & TV_NFLAGS_SELECTED; |
| 4541 | ma->tree->drag.start_node = node; |
| 4542 | ma->tree->drag.part = part; |
| 4543 | ma->tree->drag.start.x = ma->x; |
| 4544 | ma->tree->drag.start.y = ma->y; |
| 4545 | ma->tree->drag.start.node_y = ma->current_y; |
| 4546 | ma->tree->drag.start.node_h = height; |
| 4547 | |
| 4548 | ma->tree->drag.prev.x = ma->x; |
| 4549 | ma->tree->drag.prev.y = ma->y; |
| 4550 | ma->tree->drag.prev.node_y = ma->current_y; |
| 4551 | ma->tree->drag.prev.node_h = height; |
| 4552 | } |
| 4553 | |
| 4554 | /* Handle drag start */ |
| 4555 | if (ma->tree->drag.type == TV_DRAG_NONE) { |
| 4556 | if (ma->mouse & BROWSER_MOUSE_DRAG_1 && |
| 4557 | ma->tree->drag.selected == false0 && |
| 4558 | ma->tree->drag.part == TV_NODE_PART_NONE) { |
| 4559 | ma->tree->drag.type = TV_DRAG_SELECTION; |
| 4560 | treeview__cw_drag_status(ma->tree, |
| 4561 | CORE_WINDOW_DRAG_SELECTION); |
| 4562 | |
| 4563 | } else if (ma->tree->search.search == false0 && |
| 4564 | !(ma->tree->flags & TREEVIEW_NO_MOVES) && |
| 4565 | ma->mouse & BROWSER_MOUSE_DRAG_1 && |
| 4566 | (ma->tree->drag.selected == true1 || |
| 4567 | ma->tree->drag.part == TV_NODE_PART_ON_NODE)) { |
| 4568 | ma->tree->drag.type = TV_DRAG_MOVE; |
| 4569 | treeview__cw_drag_status(ma->tree, |
| 4570 | CORE_WINDOW_DRAG_MOVE); |
| 4571 | redraw |= treeview_propagate_selection(ma->tree, &r); |
| 4572 | |
| 4573 | } else if (ma->mouse & BROWSER_MOUSE_DRAG_2) { |
| 4574 | ma->tree->drag.type = TV_DRAG_SELECTION; |
| 4575 | treeview__cw_drag_status(ma->tree, |
| 4576 | CORE_WINDOW_DRAG_SELECTION); |
| 4577 | } |
| 4578 | |
| 4579 | if (ma->tree->drag.start_node != NULL((void*)0) && |
| 4580 | ma->tree->drag.type == TV_DRAG_SELECTION) { |
| 4581 | ma->tree->drag.start_node->flags ^= TV_NFLAGS_SELECTED; |
| 4582 | } |
| 4583 | } |
| 4584 | |
| 4585 | /* Handle active drags */ |
| 4586 | switch (ma->tree->drag.type) { |
| 4587 | case TV_DRAG_SELECTION: |
| 4588 | { |
| 4589 | int curr_y1 = ma->current_y + height; |
| 4590 | int prev_y1 = ma->tree->drag.prev.node_y + |
| 4591 | ma->tree->drag.prev.node_h; |
| 4592 | |
| 4593 | r.y0 = (ma->current_y < ma->tree->drag.prev.node_y) ? |
| 4594 | ma->current_y : ma->tree->drag.prev.node_y; |
| 4595 | r.y1 = (curr_y1 > prev_y1) ? curr_y1 : prev_y1; |
| 4596 | |
| 4597 | redraw = true1; |
| 4598 | |
| 4599 | ma->tree->drag.prev.x = ma->x; |
| 4600 | ma->tree->drag.prev.y = ma->y; |
| 4601 | ma->tree->drag.prev.node_y = ma->current_y; |
| 4602 | ma->tree->drag.prev.node_h = height; |
| 4603 | } |
| 4604 | break; |
| 4605 | |
| 4606 | case TV_DRAG_MOVE: |
| 4607 | redraw |= treeview_set_move_indicator(ma->tree, redraw, |
| 4608 | node, height, |
| 4609 | ma->current_y, ma->y, &r); |
| 4610 | break; |
| 4611 | |
| 4612 | default: |
| 4613 | break; |
| 4614 | } |
| 4615 | |
| 4616 | click = ma->mouse & (BROWSER_MOUSE_CLICK_1 | BROWSER_MOUSE_CLICK_2); |
| 4617 | |
| 4618 | if (((node->type == TREE_NODE_FOLDER) && |
| 4619 | (ma->mouse & BROWSER_MOUSE_DOUBLE_CLICK) && click) || |
| 4620 | (part == TV_NODE_PART_TOGGLE && click)) { |
| 4621 | int h = treeview__get_display_height(ma->tree) + |
| 4622 | ma->search_height; |
| 4623 | |
| 4624 | /* Clear any existing selection */ |
| 4625 | redraw |= treeview_clear_selection(ma->tree, &r); |
| 4626 | |
| 4627 | /* Toggle node expansion */ |
| 4628 | if (node->flags & TV_NFLAGS_EXPANDED) { |
| 4629 | err = treeview_node_contract_internal(ma->tree, node); |
| 4630 | } else { |
| 4631 | err = treeview_node_expand_internal(ma->tree, node); |
| 4632 | } |
| 4633 | if (err != NSERROR_OK) { |
| 4634 | return err; |
| 4635 | } |
| 4636 | |
| 4637 | /* Set up redraw */ |
| 4638 | if (!redraw || r.y0 > ma->current_y) |
| 4639 | r.y0 = ma->current_y; |
| 4640 | if (h > treeview__get_display_height(ma->tree) + |
| 4641 | ma->search_height) { |
| 4642 | r.y1 = h; |
| 4643 | } else { |
| 4644 | r.y1 = treeview__get_display_height(ma->tree) + |
| 4645 | ma->search_height; |
| 4646 | } |
| 4647 | redraw = true1; |
| 4648 | |
| 4649 | } else if ((node->type == TREE_NODE_ENTRY) && |
| 4650 | (ma->mouse & BROWSER_MOUSE_DOUBLE_CLICK) && click) { |
| 4651 | struct treeview_node_msg msg; |
| 4652 | msg.msg = TREE_MSG_NODE_LAUNCH; |
| 4653 | msg.data.node_launch.mouse = ma->mouse; |
| 4654 | |
| 4655 | /* Clear any existing selection */ |
| 4656 | redraw |= treeview_clear_selection(ma->tree, &r); |
| 4657 | |
| 4658 | /* Tell client an entry was launched */ |
| 4659 | ma->tree->callbacks->entry(msg, node->client_data); |
| 4660 | |
| 4661 | } else if (ma->mouse & BROWSER_MOUSE_PRESS_2 || |
| 4662 | (ma->mouse & BROWSER_MOUSE_PRESS_1 && |
| 4663 | ma->mouse & BROWSER_MOUSE_MOD_2)) { |
| 4664 | /* Toggle selection of node */ |
| 4665 | action |= TV_NODE_ACTION_SELECTION; |
| 4666 | |
| 4667 | } else if (ma->mouse & BROWSER_MOUSE_CLICK_1 && |
| 4668 | ma->mouse & |
| 4669 | (BROWSER_MOUSE_MOD_1 | BROWSER_MOUSE_MOD_3) && |
| 4670 | part != TV_NODE_PART_TOGGLE) { |
| 4671 | |
| 4672 | /* Clear any existing selection */ |
| 4673 | redraw |= treeview_clear_selection(ma->tree, &r); |
| 4674 | |
| 4675 | /* Edit node */ |
| 4676 | redraw |= treeview_edit_node_at_point(ma->tree, node, |
| 4677 | ma->current_y, ma->x, |
| 4678 | ma->y, &r); |
| 4679 | |
| 4680 | } else if (ma->mouse & BROWSER_MOUSE_PRESS_1 && |
| 4681 | !(ma->mouse & |
| 4682 | (BROWSER_MOUSE_MOD_1 | BROWSER_MOUSE_MOD_3)) && |
| 4683 | !(node->flags & TV_NFLAGS_SELECTED) && |
| 4684 | part != TV_NODE_PART_TOGGLE) { |
| 4685 | /* Clear any existing selection */ |
| 4686 | redraw |= treeview_clear_selection(ma->tree, &r); |
| 4687 | |
| 4688 | /* Select node */ |
| 4689 | action |= TV_NODE_ACTION_SELECTION; |
| 4690 | |
| 4691 | } |
| 4692 | |
| 4693 | if (action & TV_NODE_ACTION_SELECTION) { |
| 4694 | /* Handle change in selection */ |
| 4695 | node->flags ^= TV_NFLAGS_SELECTED; |
| 4696 | |
| 4697 | /* Redraw */ |
| 4698 | if (!redraw) { |
| 4699 | r.y0 = ma->current_y; |
| 4700 | r.y1 = ma->current_y + height; |
| 4701 | redraw = true1; |
| 4702 | } else { |
| 4703 | if (r.y0 > ma->current_y) { |
| 4704 | r.y0 = ma->current_y; |
| 4705 | } |
| 4706 | if (r.y1 < ma->current_y + height) { |
| 4707 | r.y1 = ma->current_y + height; |
| 4708 | } |
| 4709 | } |
| 4710 | } |
| 4711 | |
| 4712 | if (redraw) { |
| 4713 | treeview__cw_invalidate_area(ma->tree, &r); |
| 4714 | } |
| 4715 | |
| 4716 | *end = true1; /* Reached line with click; stop walking tree */ |
| 4717 | return NSERROR_OK; |
| 4718 | } |
| 4719 | |
| 4720 | |
| 4721 | /* Exported interface, documented in treeview.h */ |
| 4722 | void |
| 4723 | treeview_mouse_action(treeview *tree, browser_mouse_state mouse, int x, int y) |
| 4724 | { |
| 4725 | struct rect r; |
| 4726 | bool_Bool redraw = false0; |
| 4727 | int search_height = treeview__get_search_height(tree); |
| 4728 | |
| 4729 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 4729, __extension__ __PRETTY_FUNCTION__ )); |
| 4730 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 4730, __extension__ __PRETTY_FUNCTION__)); |
| 4731 | |
| 4732 | /* Not interested in whether mouse leaves window. */ |
| 4733 | if (mouse == BROWSER_MOUSE_LEAVE) { |
| 4734 | return; |
| 4735 | } |
| 4736 | |
| 4737 | /* Handle mouse drag captured by textarea */ |
| 4738 | if (tree->drag.type == TV_DRAG_TEXTAREA) { |
| 4739 | textarea_mouse_action(tree->edit.textarea, mouse, |
| 4740 | x - tree->edit.x, y - tree->edit.y); |
| 4741 | return; |
| 4742 | } else if (tree->drag.type == TV_DRAG_SEARCH) { |
| 4743 | if (tree->search.active == false0) { |
| 4744 | tree->search.active = true1; |
| 4745 | if (treeview_clear_selection(tree, &r)) { |
| 4746 | treeview__cw_invalidate_area(tree, &r); |
| 4747 | } |
| 4748 | } |
| 4749 | textarea_mouse_action(tree->search.textarea, mouse, |
| 4750 | x - tree_g.window_padding - tree_g.icon_size, |
| 4751 | y); |
| 4752 | return; |
| 4753 | } else if (mouse & (BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_PRESS_2) && |
| 4754 | y < search_height && tree->search.active == false0) { |
| 4755 | tree->search.active = true1; |
| 4756 | if (treeview_clear_selection(tree, &r)) { |
| 4757 | treeview__cw_invalidate_area(tree, &r); |
| 4758 | } |
| 4759 | textarea_mouse_action(tree->search.textarea, mouse, |
| 4760 | x - tree_g.window_padding - tree_g.icon_size, |
| 4761 | y); |
| 4762 | return; |
| 4763 | } else if (mouse & (BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_PRESS_2) && |
| 4764 | tree->search.active == true1) { |
| 4765 | |
| 4766 | tree->search.active = false0; |
| 4767 | textarea_set_caret(tree->search.textarea, -1); |
| 4768 | r.x0 = 0; |
| 4769 | r.y0 = 0; |
| 4770 | r.x1 = REDRAW_MAX8000; |
| 4771 | r.y1 = tree_g.line_height; |
| 4772 | treeview__cw_invalidate_area(tree, &r); |
| 4773 | } |
| 4774 | |
| 4775 | /* Handle textarea related mouse action */ |
| 4776 | if (tree->edit.textarea != NULL((void*)0)) { |
| 4777 | int ta_x = x - tree->edit.x; |
| 4778 | int ta_y = y - tree->edit.y; |
| 4779 | |
| 4780 | if (ta_x > 0 && ta_x < tree->edit.w && |
| 4781 | ta_y > 0 && ta_y < tree->edit.h) { |
| 4782 | /* Inside textarea */ |
| 4783 | textarea_mouse_action(tree->edit.textarea, mouse, |
| 4784 | ta_x, ta_y); |
| 4785 | return; |
| 4786 | |
| 4787 | } else if (mouse != BROWSER_MOUSE_HOVER) { |
| 4788 | /* Action outside textarea */ |
| 4789 | treeview_edit_cancel(tree, true1); |
| 4790 | } |
| 4791 | } |
| 4792 | |
| 4793 | /* Handle drag ends */ |
| 4794 | if (mouse == BROWSER_MOUSE_HOVER) { |
| 4795 | switch (tree->drag.type) { |
| 4796 | case TV_DRAG_SELECTION: |
| 4797 | treeview_commit_selection_drag(tree); |
| 4798 | tree->drag.type = TV_DRAG_NONE; |
| 4799 | tree->drag.start_node = NULL((void*)0); |
| 4800 | |
| 4801 | treeview__cw_drag_status(tree, CORE_WINDOW_DRAG_NONE); |
| 4802 | return; |
| 4803 | case TV_DRAG_MOVE: |
| 4804 | treeview_move_selection(tree, &r); |
| 4805 | tree->drag.type = TV_DRAG_NONE; |
| 4806 | tree->drag.start_node = NULL((void*)0); |
| 4807 | |
| 4808 | tree->move.target = NULL((void*)0); |
| 4809 | tree->move.target_pos = TV_TARGET_NONE; |
| 4810 | |
| 4811 | treeview__cw_drag_status(tree, CORE_WINDOW_DRAG_NONE); |
| 4812 | treeview__cw_invalidate_area(tree, &r); |
| 4813 | return; |
| 4814 | default: |
| 4815 | /* No drag to end */ |
| 4816 | break; |
| 4817 | } |
| 4818 | } |
| 4819 | |
| 4820 | if (y > treeview__get_display_height(tree) + search_height) { |
| 4821 | /* Below tree */ |
| 4822 | |
| 4823 | r.x0 = 0; |
| 4824 | r.x1 = REDRAW_MAX8000; |
| 4825 | |
| 4826 | /* Record what position / part a drag started on */ |
| 4827 | if (mouse & (BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_PRESS_2) && |
| 4828 | tree->drag.type == TV_DRAG_NONE) { |
| 4829 | tree->drag.selected = false0; |
| 4830 | tree->drag.start_node = NULL((void*)0); |
| 4831 | tree->drag.part = TV_NODE_PART_NONE; |
| 4832 | tree->drag.start.x = x; |
| 4833 | tree->drag.start.y = y; |
| 4834 | tree->drag.start.node_y = tree->root->height; |
| 4835 | tree->drag.start.node_h = 0; |
| 4836 | |
| 4837 | tree->drag.prev.x = x; |
| 4838 | tree->drag.prev.y = y; |
| 4839 | tree->drag.prev.node_y = tree->root->height; |
| 4840 | tree->drag.prev.node_h = 0; |
| 4841 | } |
| 4842 | |
| 4843 | /* Handle drag start */ |
| 4844 | if (tree->drag.type == TV_DRAG_NONE) { |
| 4845 | if (mouse & BROWSER_MOUSE_DRAG_1 && |
| 4846 | tree->drag.selected == false0 && |
| 4847 | tree->drag.part == TV_NODE_PART_NONE) { |
| 4848 | tree->drag.type = TV_DRAG_SELECTION; |
| 4849 | treeview__cw_drag_status(tree, |
| 4850 | CORE_WINDOW_DRAG_SELECTION); |
| 4851 | } else if (mouse & BROWSER_MOUSE_DRAG_2) { |
| 4852 | tree->drag.type = TV_DRAG_SELECTION; |
| 4853 | treeview__cw_drag_status(tree, |
| 4854 | CORE_WINDOW_DRAG_SELECTION); |
| 4855 | } |
| 4856 | |
| 4857 | if (tree->drag.start_node != NULL((void*)0) && |
| 4858 | tree->drag.type == TV_DRAG_SELECTION) { |
| 4859 | tree->drag.start_node->flags ^= |
| 4860 | TV_NFLAGS_SELECTED; |
| 4861 | } |
| 4862 | } |
| 4863 | |
| 4864 | /* Handle selection drags */ |
| 4865 | if (tree->drag.type == TV_DRAG_SELECTION) { |
| 4866 | int curr_y1 = tree->root->height; |
| 4867 | int prev_y1 = tree->drag.prev.node_y + |
| 4868 | tree->drag.prev.node_h; |
| 4869 | |
| 4870 | r.y0 = tree->drag.prev.node_y; |
| 4871 | r.y1 = (curr_y1 > prev_y1) ? curr_y1 : prev_y1; |
| 4872 | |
| 4873 | redraw = true1; |
| 4874 | |
| 4875 | tree->drag.prev.x = x; |
| 4876 | tree->drag.prev.y = y; |
| 4877 | tree->drag.prev.node_y = curr_y1; |
| 4878 | tree->drag.prev.node_h = 0; |
| 4879 | } |
| 4880 | |
| 4881 | if (mouse & BROWSER_MOUSE_PRESS_1) { |
| 4882 | /* Clear any existing selection */ |
| 4883 | redraw |= treeview_clear_selection(tree, &r); |
| 4884 | } |
| 4885 | |
| 4886 | if (redraw) { |
| 4887 | treeview__cw_invalidate_area(tree, &r); |
| 4888 | } |
| 4889 | |
| 4890 | } else { |
| 4891 | /* On tree */ |
| 4892 | struct treeview_mouse_action ma = { |
| 4893 | .tree = tree, |
| 4894 | .mouse = mouse, |
| 4895 | .x = x, |
| 4896 | .y = y, |
| 4897 | .current_y = search_height, |
| 4898 | .search_height = search_height, |
| 4899 | }; |
| 4900 | |
| 4901 | treeview_walk_internal(tree, tree->root, |
| 4902 | TREEVIEW_WALK_MODE_DISPLAY, NULL((void*)0), |
| 4903 | treeview_node_mouse_action_cb, &ma); |
| 4904 | } |
| 4905 | } |
| 4906 | |
| 4907 | /* Exported interface, documented in treeview.h */ |
| 4908 | int treeview_get_height(treeview *tree) |
| 4909 | { |
| 4910 | int search_height = treeview__get_search_height(tree); |
| 4911 | int height = treeview__get_display_height(tree); |
| 4912 | |
| 4913 | assert(tree != NULL)((tree != ((void*)0)) ? (void) (0) : __assert_fail ("tree != NULL" , "desktop/treeview.c", 4913, __extension__ __PRETTY_FUNCTION__ )); |
| 4914 | assert(tree->root != NULL)((tree->root != ((void*)0)) ? (void) (0) : __assert_fail ( "tree->root != NULL", "desktop/treeview.c", 4914, __extension__ __PRETTY_FUNCTION__)); |
| 4915 | |
| 4916 | treeview__cw_update_size(tree, -1, height); |
| 4917 | |
| 4918 | return height + search_height; |
| 4919 | } |
| 4920 | |
| 4921 | /* Exported interface, documented in treeview.h */ |
| 4922 | nserror treeview_set_search_string( |
| 4923 | treeview *tree, |
| 4924 | const char *string) |
| 4925 | { |
| 4926 | if (!(tree->flags & TREEVIEW_SEARCHABLE)) { |
| 4927 | return NSERROR_BAD_PARAMETER; |
| 4928 | } |
| 4929 | |
| 4930 | if (string == NULL((void*)0) || strlen(string) == 0) { |
| 4931 | tree->search.active = false0; |
| 4932 | tree->search.search = false0; |
| 4933 | return treeview__search(tree, "", 0); |
| 4934 | } |
| 4935 | |
| 4936 | tree->search.active = true1; |
| 4937 | tree->search.search = true1; |
| 4938 | if (!textarea_set_text(tree->search.textarea, string)) { |
| 4939 | return NSERROR_UNKNOWN; |
| 4940 | } |
| 4941 | |
| 4942 | treeview__cw_full_redraw(tree); |
| 4943 | |
| 4944 | return NSERROR_OK; |
| 4945 | } |
| 4946 | |
| 4947 | /** |
| 4948 | * Initialise the plot styles from CSS system colour values. |
| 4949 | * |
| 4950 | * \param font_pt_size font size to use |
| 4951 | * \return NSERROR_OK on success else appropriate error code |
| 4952 | */ |
| 4953 | static nserror treeview_init_plot_styles(int font_pt_size) |
| 4954 | { |
| 4955 | /* Background colour */ |
| 4956 | plot_style_even.bg.stroke_type = PLOT_OP_TYPE_NONE; |
| 4957 | plot_style_even.bg.stroke_width = 0; |
| 4958 | plot_style_even.bg.stroke_colour = 0; |
| 4959 | plot_style_even.bg.fill_type = PLOT_OP_TYPE_SOLID; |
| 4960 | plot_style_even.bg.fill_colour = nscolours[NSCOLOUR_WIN_EVEN_BG]; |
| 4961 | |
| 4962 | /* Text colour */ |
| 4963 | plot_style_even.text.family = PLOT_FONT_FAMILY_SANS_SERIF; |
| 4964 | plot_style_even.text.size = font_pt_size; |
| 4965 | plot_style_even.text.weight = 400; |
| 4966 | plot_style_even.text.flags = FONTF_NONE; |
| 4967 | plot_style_even.text.foreground = nscolours[NSCOLOUR_WIN_EVEN_FG]; |
| 4968 | plot_style_even.text.background = nscolours[NSCOLOUR_WIN_EVEN_BG]; |
| 4969 | |
| 4970 | /* Entry field text colour */ |
| 4971 | plot_style_even.itext = plot_style_even.text; |
| 4972 | plot_style_even.itext.foreground = nscolours[NSCOLOUR_WIN_EVEN_FG_FADED]; |
| 4973 | |
| 4974 | /* Selected background colour */ |
| 4975 | plot_style_even.sbg = plot_style_even.bg; |
| 4976 | plot_style_even.sbg.fill_colour = nscolours[NSCOLOUR_SEL_BG]; |
| 4977 | |
| 4978 | /* Selected text colour */ |
| 4979 | plot_style_even.stext = plot_style_even.text; |
| 4980 | plot_style_even.stext.foreground = nscolours[NSCOLOUR_SEL_FG]; |
| 4981 | plot_style_even.stext.background = nscolours[NSCOLOUR_SEL_BG]; |
| 4982 | |
| 4983 | /* Selected entry field text colour */ |
| 4984 | plot_style_even.sitext = plot_style_even.stext; |
| 4985 | plot_style_even.sitext.foreground = nscolours[NSCOLOUR_SEL_FG_SUBTLE]; |
| 4986 | |
| 4987 | /* Odd numbered node styles */ |
| 4988 | plot_style_odd.bg = plot_style_even.bg; |
| 4989 | plot_style_odd.bg.fill_colour = nscolours[NSCOLOUR_WIN_ODD_BG]; |
| 4990 | plot_style_odd.text = plot_style_even.text; |
| 4991 | plot_style_odd.text.background = plot_style_odd.bg.fill_colour; |
| 4992 | plot_style_odd.itext = plot_style_odd.text; |
| 4993 | plot_style_odd.itext.foreground = nscolours[NSCOLOUR_WIN_EVEN_FG_FADED]; |
| 4994 | |
| 4995 | plot_style_odd.sbg = plot_style_even.sbg; |
| 4996 | plot_style_odd.stext = plot_style_even.stext; |
| 4997 | plot_style_odd.sitext = plot_style_even.sitext; |
| 4998 | |
| 4999 | return NSERROR_OK; |
| 5000 | } |
| 5001 | |
| 5002 | |
| 5003 | /** |
| 5004 | * Callback for hlcache retrieving resources. |
| 5005 | * |
| 5006 | * \param handle content hlcache handle |
| 5007 | * \param event The event that occurred on the content |
| 5008 | * \param pw treeview resource context |
| 5009 | */ |
| 5010 | static nserror |
| 5011 | treeview_res_cb(struct hlcache_handle *handle, |
| 5012 | const hlcache_event *event, |
| 5013 | void *pw) |
| 5014 | { |
| 5015 | struct treeview_resource *r = pw; |
| 5016 | |
| 5017 | switch (event->type) { |
| 5018 | case CONTENT_MSG_READY: |
| 5019 | case CONTENT_MSG_DONE: |
| 5020 | r->ready = true1; |
| 5021 | r->height = content_get_height(handle); |
| 5022 | break; |
| 5023 | |
| 5024 | default: |
| 5025 | break; |
| 5026 | } |
| 5027 | |
| 5028 | return NSERROR_OK; |
| 5029 | } |
| 5030 | |
| 5031 | |
| 5032 | /** |
| 5033 | * Fetch content resources used by treeview. |
| 5034 | */ |
| 5035 | static void treeview_init_resources(void) |
| 5036 | { |
| 5037 | int i; |
| 5038 | |
| 5039 | for (i = 0; i < TREE_RES_LAST; i++) { |
| 5040 | nsurl *url; |
| 5041 | treeview_res[i].ready = false0; |
| 5042 | treeview_res[i].height = 0; |
| 5043 | if (nsurl_create(treeview_res[i].url, &url) == NSERROR_OK) { |
| 5044 | hlcache_handle_retrieve(url, 0, NULL((void*)0), NULL((void*)0), |
| 5045 | treeview_res_cb, |
| 5046 | &(treeview_res[i]), NULL((void*)0), |
| 5047 | CONTENT_IMAGE, |
| 5048 | &(treeview_res[i].c)); |
| 5049 | nsurl_unref(url); |
| 5050 | } |
| 5051 | } |
| 5052 | } |
| 5053 | |
| 5054 | |
| 5055 | /** |
| 5056 | * Create a right-pointing anti-aliased triangle bitmap |
| 5057 | * |
| 5058 | * \param bg background colour |
| 5059 | * \param fg foreground colour |
| 5060 | * \param size required bitmap size |
| 5061 | */ |
| 5062 | static struct bitmap * |
| 5063 | treeview_generate_triangle_bitmap(colour bg, colour fg, int size) |
| 5064 | { |
| 5065 | struct bitmap *b = NULL((void*)0); |
| 5066 | int x, y; |
| 5067 | unsigned char *rpos; |
| 5068 | unsigned char *pos; |
| 5069 | size_t stride; |
| 5070 | |
| 5071 | /* Set up required colour graduations. Ignores screen gamma. */ |
| 5072 | colour colour0 = bg; |
| 5073 | colour colour1 = mix_colour(bg, fg, 255 * 3 / 4)((((((fg & 0xff00ff) * (255 - 255 * 3 / 4)) + ((bg & 0xff00ff ) * ( 255 * 3 / 4)) ) >> 8) & 0xff00ff) | (((((fg & 0x00ff00) * (255 - 255 * 3 / 4)) + ((bg & 0x00ff00) * ( 255 * 3 / 4)) ) >> 8) & 0x00ff00)); |
| 5074 | colour colour2 = blend_colour(bg, fg)(((((bg & 0xff00ff) + (fg & 0xff00ff)) >> 1) & 0xff00ff) | ((((bg & 0x00ff00) + (fg & 0x00ff00)) >> 1) & 0x00ff00)); |
| 5075 | colour colour3 = mix_colour(bg, fg, 255 * 1 / 4)((((((fg & 0xff00ff) * (255 - 255 * 1 / 4)) + ((bg & 0xff00ff ) * ( 255 * 1 / 4)) ) >> 8) & 0xff00ff) | (((((fg & 0x00ff00) * (255 - 255 * 1 / 4)) + ((bg & 0x00ff00) * ( 255 * 1 / 4)) ) >> 8) & 0x00ff00)); |
| 5076 | colour colour4 = fg; |
| 5077 | |
| 5078 | /* Create the bitmap */ |
| 5079 | b = guit->bitmap->create(size, size, BITMAP_OPAQUE); |
| 5080 | if (b == NULL((void*)0)) |
| 5081 | return NULL((void*)0); |
| 5082 | |
| 5083 | rpos = guit->bitmap->get_buffer(b); |
| 5084 | stride = guit->bitmap->get_rowstride(b); |
| 5085 | |
| 5086 | /* Draw the triangle */ |
| 5087 | for (y = 0; y < size; y++) { |
| 5088 | pos = rpos; |
| 5089 | |
| 5090 | if (y < size / 2) { |
| 5091 | /* Top half */ |
| 5092 | for (x = 0; x < y * 2; x++) { |
| 5093 | pos[bitmap_layout.r] = red_from_colour(colour4)((colour4 ) & 0xff); |
| 5094 | pos[bitmap_layout.g] = green_from_colour(colour4)((colour4 >> 8) & 0xff); |
| 5095 | pos[bitmap_layout.b] = blue_from_colour(colour4)((colour4 >> 16) & 0xff); |
| 5096 | pos[bitmap_layout.a] = 0xff; |
| 5097 | pos += 4; |
| 5098 | } |
| 5099 | pos[bitmap_layout.r] = red_from_colour(colour3)((colour3 ) & 0xff); |
| 5100 | pos[bitmap_layout.g] = green_from_colour(colour3)((colour3 >> 8) & 0xff); |
| 5101 | pos[bitmap_layout.b] = blue_from_colour(colour3)((colour3 >> 16) & 0xff); |
| 5102 | pos[bitmap_layout.a] = 0xff; |
| 5103 | pos += 4; |
| 5104 | pos[bitmap_layout.r] = red_from_colour(colour1)((colour1 ) & 0xff); |
| 5105 | pos[bitmap_layout.g] = green_from_colour(colour1)((colour1 >> 8) & 0xff); |
| 5106 | pos[bitmap_layout.b] = blue_from_colour(colour1)((colour1 >> 16) & 0xff); |
| 5107 | pos[bitmap_layout.a] = 0xff; |
| 5108 | pos += 4; |
| 5109 | for (x = y * 2 + 2; x < size ; x++) { |
| 5110 | pos[bitmap_layout.r] = red_from_colour(colour0)((colour0 ) & 0xff); |
| 5111 | pos[bitmap_layout.g] = green_from_colour(colour0)((colour0 >> 8) & 0xff); |
| 5112 | pos[bitmap_layout.b] = blue_from_colour(colour0)((colour0 >> 16) & 0xff); |
| 5113 | pos[bitmap_layout.a] = 0xff; |
| 5114 | pos += 4; |
| 5115 | } |
| 5116 | } else if ((y == size / 2) && (size & 0x1)) { |
| 5117 | /* Middle row */ |
| 5118 | for (x = 0; x < size - 1; x++) { |
| 5119 | pos[bitmap_layout.r] = red_from_colour(colour4)((colour4 ) & 0xff); |
| 5120 | pos[bitmap_layout.g] = green_from_colour(colour4)((colour4 >> 8) & 0xff); |
| 5121 | pos[bitmap_layout.b] = blue_from_colour(colour4)((colour4 >> 16) & 0xff); |
| 5122 | pos[bitmap_layout.a] = 0xff; |
| 5123 | pos += 4; |
| 5124 | } |
| 5125 | pos[bitmap_layout.r] = red_from_colour(colour2)((colour2 ) & 0xff); |
| 5126 | pos[bitmap_layout.g] = green_from_colour(colour2)((colour2 >> 8) & 0xff); |
| 5127 | pos[bitmap_layout.b] = blue_from_colour(colour2)((colour2 >> 16) & 0xff); |
| 5128 | pos[bitmap_layout.a] = 0xff; |
| 5129 | pos += 4; |
| 5130 | } else { |
| 5131 | /* Bottom half */ |
| 5132 | for (x = 0; x < (size - y - 1) * 2; x++) { |
| 5133 | pos[bitmap_layout.r] = red_from_colour(colour4)((colour4 ) & 0xff); |
| 5134 | pos[bitmap_layout.g] = green_from_colour(colour4)((colour4 >> 8) & 0xff); |
| 5135 | pos[bitmap_layout.b] = blue_from_colour(colour4)((colour4 >> 16) & 0xff); |
| 5136 | pos[bitmap_layout.a] = 0xff; |
| 5137 | pos += 4; |
| 5138 | } |
| 5139 | pos[bitmap_layout.r] = red_from_colour(colour3)((colour3 ) & 0xff); |
| 5140 | pos[bitmap_layout.g] = green_from_colour(colour3)((colour3 >> 8) & 0xff); |
| 5141 | pos[bitmap_layout.b] = blue_from_colour(colour3)((colour3 >> 16) & 0xff); |
| 5142 | pos[bitmap_layout.a] = 0xff; |
| 5143 | pos += 4; |
| 5144 | pos[bitmap_layout.r] = red_from_colour(colour1)((colour1 ) & 0xff); |
| 5145 | pos[bitmap_layout.g] = green_from_colour(colour1)((colour1 >> 8) & 0xff); |
| 5146 | pos[bitmap_layout.b] = blue_from_colour(colour1)((colour1 >> 16) & 0xff); |
| 5147 | pos[bitmap_layout.a] = 0xff; |
| 5148 | pos += 4; |
| 5149 | for (x = (size - y) * 2; x < size ; x++) { |
| 5150 | pos[bitmap_layout.r] = red_from_colour(colour0)((colour0 ) & 0xff); |
| 5151 | pos[bitmap_layout.g] = green_from_colour(colour0)((colour0 >> 8) & 0xff); |
| 5152 | pos[bitmap_layout.b] = blue_from_colour(colour0)((colour0 >> 16) & 0xff); |
| 5153 | pos[bitmap_layout.a] = 0xff; |
| 5154 | pos += 4; |
| 5155 | } |
| 5156 | } |
| 5157 | |
| 5158 | rpos += stride; |
| 5159 | } |
| 5160 | |
| 5161 | guit->bitmap->modified(b); |
| 5162 | |
| 5163 | return b; |
| 5164 | } |
| 5165 | |
| 5166 | |
| 5167 | /** |
| 5168 | * Create bitmap copy of another bitmap |
| 5169 | * |
| 5170 | * \param orig bitmap to copy |
| 5171 | * \param size required bitmap size |
| 5172 | */ |
| 5173 | static struct bitmap * |
| 5174 | treeview_generate_copy_bitmap(struct bitmap *orig, int size) |
| 5175 | { |
| 5176 | struct bitmap *b = NULL((void*)0); |
| 5177 | unsigned char *data; |
| 5178 | unsigned char *orig_data; |
| 5179 | size_t stride; |
| 5180 | |
| 5181 | if (orig == NULL((void*)0)) |
| 5182 | return NULL((void*)0); |
| 5183 | |
| 5184 | assert(size == guit->bitmap->get_width(orig))((size == guit->bitmap->get_width(orig)) ? (void) (0) : __assert_fail ("size == guit->bitmap->get_width(orig)" , "desktop/treeview.c", 5184, __extension__ __PRETTY_FUNCTION__ )); |
| 5185 | assert(size == guit->bitmap->get_height(orig))((size == guit->bitmap->get_height(orig)) ? (void) (0) : __assert_fail ("size == guit->bitmap->get_height(orig)" , "desktop/treeview.c", 5185, __extension__ __PRETTY_FUNCTION__ )); |
| 5186 | |
| 5187 | /* Create the bitmap */ |
| 5188 | b = guit->bitmap->create(size, size, BITMAP_OPAQUE); |
| 5189 | if (b == NULL((void*)0)) |
| 5190 | return NULL((void*)0); |
| 5191 | |
| 5192 | stride = guit->bitmap->get_rowstride(b); |
| 5193 | assert(stride == guit->bitmap->get_rowstride(orig))((stride == guit->bitmap->get_rowstride(orig)) ? (void) (0) : __assert_fail ("stride == guit->bitmap->get_rowstride(orig)" , "desktop/treeview.c", 5193, __extension__ __PRETTY_FUNCTION__ )); |
| 5194 | |
| 5195 | data = guit->bitmap->get_buffer(b); |
| 5196 | orig_data = guit->bitmap->get_buffer(orig); |
| 5197 | |
| 5198 | /* Copy the bitmap */ |
| 5199 | memcpy(data, orig_data, stride * size); |
| 5200 | |
| 5201 | guit->bitmap->modified(b); |
| 5202 | |
| 5203 | /* We've not modified the original image, but we called |
| 5204 | * bitmap_get_buffer(), so we need to pair that with a |
| 5205 | * bitmap_modified() call to appease certain front ends. */ |
| 5206 | guit->bitmap->modified(orig); |
| 5207 | |
| 5208 | return b; |
| 5209 | } |
| 5210 | |
| 5211 | |
| 5212 | /** |
| 5213 | * Create bitmap from rotation of another bitmap |
| 5214 | * |
| 5215 | * \param orig bitmap to create rotation of |
| 5216 | * \param size required bitmap size |
| 5217 | */ |
| 5218 | static struct bitmap * |
| 5219 | treeview_generate_rotate_bitmap(struct bitmap *orig, int size) |
| 5220 | { |
| 5221 | struct bitmap *b = NULL((void*)0); |
| 5222 | int x, y; |
| 5223 | unsigned char *rpos; |
| 5224 | unsigned char *pos; |
| 5225 | unsigned char *orig_data; |
| 5226 | unsigned char *orig_pos; |
| 5227 | size_t stride; |
| 5228 | |
| 5229 | if (orig == NULL((void*)0)) |
| 5230 | return NULL((void*)0); |
| 5231 | |
| 5232 | assert(size == guit->bitmap->get_width(orig))((size == guit->bitmap->get_width(orig)) ? (void) (0) : __assert_fail ("size == guit->bitmap->get_width(orig)" , "desktop/treeview.c", 5232, __extension__ __PRETTY_FUNCTION__ )); |
| 5233 | assert(size == guit->bitmap->get_height(orig))((size == guit->bitmap->get_height(orig)) ? (void) (0) : __assert_fail ("size == guit->bitmap->get_height(orig)" , "desktop/treeview.c", 5233, __extension__ __PRETTY_FUNCTION__ )); |
| 5234 | |
| 5235 | /* Create the bitmap */ |
| 5236 | b = guit->bitmap->create(size, size, BITMAP_OPAQUE); |
| 5237 | if (b == NULL((void*)0)) |
| 5238 | return NULL((void*)0); |
| 5239 | |
| 5240 | stride = guit->bitmap->get_rowstride(b); |
| 5241 | assert(stride == guit->bitmap->get_rowstride(orig))((stride == guit->bitmap->get_rowstride(orig)) ? (void) (0) : __assert_fail ("stride == guit->bitmap->get_rowstride(orig)" , "desktop/treeview.c", 5241, __extension__ __PRETTY_FUNCTION__ )); |
| 5242 | |
| 5243 | rpos = guit->bitmap->get_buffer(b); |
| 5244 | orig_data = guit->bitmap->get_buffer(orig); |
| 5245 | |
| 5246 | /* Copy the rotated bitmap */ |
| 5247 | for (y = 0; y < size; y++) { |
| 5248 | pos = rpos; |
| 5249 | |
| 5250 | for (x = 0; x < size; x++) { |
| 5251 | orig_pos = orig_data + x * stride + y * 4; |
| 5252 | *(pos++) = *(orig_pos++); |
| 5253 | *(pos++) = *(orig_pos++); |
| 5254 | *(pos++) = *(orig_pos); |
| 5255 | *(pos++) = 0xff; |
| 5256 | |
| 5257 | } |
| 5258 | |
| 5259 | rpos += stride; |
| 5260 | } |
| 5261 | |
| 5262 | guit->bitmap->modified(b); |
| 5263 | |
| 5264 | /* We've not modified the original image, but we called |
| 5265 | * bitmap_get_buffer(), so we need to pair that with a |
| 5266 | * bitmap_modified() call to appease certain front ends. |
| 5267 | */ |
| 5268 | guit->bitmap->modified(orig); |
| 5269 | |
| 5270 | return b; |
| 5271 | } |
| 5272 | |
| 5273 | |
| 5274 | /** |
| 5275 | * Measures width of characters used to represent treeview furniture. |
| 5276 | * |
| 5277 | * \return NSERROR_OK on success else error code |
| 5278 | */ |
| 5279 | static nserror treeview_init_furniture(void) |
| 5280 | { |
| 5281 | int size = tree_g.line_height / 2; |
| 5282 | |
| 5283 | plot_style_odd.furn[TREE_FURN_EXPAND].size = size; |
| 5284 | plot_style_odd.furn[TREE_FURN_EXPAND].bmp = |
| 5285 | treeview_generate_triangle_bitmap( |
| 5286 | plot_style_odd.bg.fill_colour, |
| 5287 | plot_style_odd.itext.foreground, size); |
| 5288 | plot_style_odd.furn[TREE_FURN_EXPAND].sel = |
| 5289 | treeview_generate_triangle_bitmap( |
| 5290 | plot_style_odd.sbg.fill_colour, |
| 5291 | plot_style_odd.sitext.foreground, size); |
| 5292 | |
| 5293 | plot_style_even.furn[TREE_FURN_EXPAND].size = size; |
| 5294 | plot_style_even.furn[TREE_FURN_EXPAND].bmp = |
| 5295 | treeview_generate_triangle_bitmap( |
| 5296 | plot_style_even.bg.fill_colour, |
| 5297 | plot_style_even.itext.foreground, size); |
| 5298 | plot_style_even.furn[TREE_FURN_EXPAND].sel = |
| 5299 | treeview_generate_copy_bitmap( |
| 5300 | plot_style_odd.furn[TREE_FURN_EXPAND].sel, size); |
| 5301 | |
| 5302 | plot_style_odd.furn[TREE_FURN_CONTRACT].size = size; |
| 5303 | plot_style_odd.furn[TREE_FURN_CONTRACT].bmp = |
| 5304 | treeview_generate_rotate_bitmap( |
| 5305 | plot_style_odd.furn[TREE_FURN_EXPAND].bmp, size); |
| 5306 | plot_style_odd.furn[TREE_FURN_CONTRACT].sel = |
| 5307 | treeview_generate_rotate_bitmap( |
| 5308 | plot_style_odd.furn[TREE_FURN_EXPAND].sel, size); |
| 5309 | |
| 5310 | plot_style_even.furn[TREE_FURN_CONTRACT].size = size; |
| 5311 | plot_style_even.furn[TREE_FURN_CONTRACT].bmp = |
| 5312 | treeview_generate_rotate_bitmap( |
| 5313 | plot_style_even.furn[TREE_FURN_EXPAND].bmp, size); |
| 5314 | plot_style_even.furn[TREE_FURN_CONTRACT].sel = |
| 5315 | treeview_generate_rotate_bitmap( |
| 5316 | plot_style_even.furn[TREE_FURN_EXPAND].sel, size); |
| 5317 | |
| 5318 | if (plot_style_odd.furn[TREE_FURN_EXPAND].bmp == NULL((void*)0) || |
| 5319 | plot_style_odd.furn[TREE_FURN_EXPAND].sel == NULL((void*)0) || |
| 5320 | plot_style_even.furn[TREE_FURN_EXPAND].bmp == NULL((void*)0) || |
| 5321 | plot_style_even.furn[TREE_FURN_EXPAND].sel == NULL((void*)0) || |
| 5322 | plot_style_odd.furn[TREE_FURN_CONTRACT].bmp == NULL((void*)0) || |
| 5323 | plot_style_odd.furn[TREE_FURN_CONTRACT].sel == NULL((void*)0) || |
| 5324 | plot_style_even.furn[TREE_FURN_CONTRACT].bmp == NULL((void*)0) || |
| 5325 | plot_style_even.furn[TREE_FURN_CONTRACT].sel == NULL((void*)0)) |
| 5326 | return NSERROR_NOMEM; |
| 5327 | |
| 5328 | tree_g.furniture_width = size + tree_g.line_height / 4; |
| 5329 | |
| 5330 | return NSERROR_OK; |
| 5331 | } |
| 5332 | |
| 5333 | |
| 5334 | /* Exported interface, documented in treeview.h */ |
| 5335 | nserror treeview_init(void) |
| 5336 | { |
| 5337 | long long font_px_size; |
| 5338 | long long font_pt_size; |
| 5339 | nserror res; |
| 5340 | |
| 5341 | if (tree_g.initialised > 0) { |
| 5342 | tree_g.initialised++; |
| 5343 | return NSERROR_OK; |
| 5344 | } |
| 5345 | |
| 5346 | NSLOG(netsurf, INFO, "Initialising treeview module")do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_INFO, "desktop/treeview.c", sizeof("desktop/treeview.c" ) - 1, __PRETTY_FUNCTION__, sizeof(__PRETTY_FUNCTION__) - 1, 5346 , }; nslog__log(&_nslog_ctx, "Initialising treeview module" ); } } while(0); |
| 5347 | |
| 5348 | font_pt_size = nsoption_int(treeview_font_size)(nsoptions[NSOPTION_treeview_font_size].value.i); |
| 5349 | if (font_pt_size <= 0) { |
| 5350 | font_pt_size = 11 * 10; |
| 5351 | } |
| 5352 | |
| 5353 | font_px_size = (font_pt_size * FIXTOINT(nscss_screen_dpi)((nscss_screen_dpi) >> 10) / |
| 5354 | 10 + 36) / 72; |
| 5355 | tree_g.line_height = (font_px_size * 8 + 3) / 6; |
| 5356 | |
| 5357 | res = treeview_init_plot_styles(font_pt_size * PLOT_STYLE_SCALE(1 << (10)) / 10); |
| 5358 | if (res != NSERROR_OK) { |
| 5359 | return res; |
| 5360 | } |
| 5361 | |
| 5362 | treeview_init_resources(); |
| 5363 | |
| 5364 | res = treeview_init_furniture(); |
| 5365 | if (res != NSERROR_OK) { |
| 5366 | return res; |
| 5367 | } |
| 5368 | |
| 5369 | tree_g.step_width = tree_g.furniture_width; |
| 5370 | tree_g.window_padding = 6; |
| 5371 | tree_g.icon_size = 17; |
| 5372 | tree_g.icon_step = 23; |
| 5373 | tree_g.move_offset = 18; |
| 5374 | |
| 5375 | tree_g.initialised++; |
| 5376 | |
| 5377 | NSLOG(netsurf, INFO, "Initialised treeview module")do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_INFO, "desktop/treeview.c", sizeof("desktop/treeview.c" ) - 1, __PRETTY_FUNCTION__, sizeof(__PRETTY_FUNCTION__) - 1, 5377 , }; nslog__log(&_nslog_ctx, "Initialised treeview module" ); } } while(0); |
| 5378 | |
| 5379 | return NSERROR_OK; |
| 5380 | } |
| 5381 | |
| 5382 | |
| 5383 | /* Exported interface, documented in treeview.h */ |
| 5384 | nserror treeview_fini(void) |
| 5385 | { |
| 5386 | int i; |
| 5387 | |
| 5388 | if (tree_g.initialised > 1) { |
| 5389 | tree_g.initialised--; |
| 5390 | return NSERROR_OK; |
| 5391 | |
| 5392 | } else if (tree_g.initialised == 0) { |
| 5393 | NSLOG(netsurf, INFO,do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_INFO, "desktop/treeview.c", sizeof("desktop/treeview.c" ) - 1, __PRETTY_FUNCTION__, sizeof(__PRETTY_FUNCTION__) - 1, 5394 , }; nslog__log(&_nslog_ctx, "Warning: tried to finalise uninitialised treeview module" ); } } while(0) |
| 5394 | "Warning: tried to finalise uninitialised treeview module")do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_INFO, "desktop/treeview.c", sizeof("desktop/treeview.c" ) - 1, __PRETTY_FUNCTION__, sizeof(__PRETTY_FUNCTION__) - 1, 5394 , }; nslog__log(&_nslog_ctx, "Warning: tried to finalise uninitialised treeview module" ); } } while(0); |
| 5395 | return NSERROR_OK; |
| 5396 | } |
| 5397 | |
| 5398 | NSLOG(netsurf, INFO, "Finalising treeview module")do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_INFO, "desktop/treeview.c", sizeof("desktop/treeview.c" ) - 1, __PRETTY_FUNCTION__, sizeof(__PRETTY_FUNCTION__) - 1, 5398 , }; nslog__log(&_nslog_ctx, "Finalising treeview module" ); } } while(0); |
| 5399 | |
| 5400 | for (i = 0; i < TREE_RES_LAST; i++) { |
| 5401 | hlcache_handle_release(treeview_res[i].c); |
| 5402 | } |
| 5403 | |
| 5404 | guit->bitmap->destroy(plot_style_odd.furn[TREE_FURN_EXPAND].bmp); |
| 5405 | guit->bitmap->destroy(plot_style_odd.furn[TREE_FURN_EXPAND].sel); |
| 5406 | guit->bitmap->destroy(plot_style_even.furn[TREE_FURN_EXPAND].bmp); |
| 5407 | guit->bitmap->destroy(plot_style_even.furn[TREE_FURN_EXPAND].sel); |
| 5408 | guit->bitmap->destroy(plot_style_odd.furn[TREE_FURN_CONTRACT].bmp); |
| 5409 | guit->bitmap->destroy(plot_style_odd.furn[TREE_FURN_CONTRACT].sel); |
| 5410 | guit->bitmap->destroy(plot_style_even.furn[TREE_FURN_CONTRACT].bmp); |
| 5411 | guit->bitmap->destroy(plot_style_even.furn[TREE_FURN_CONTRACT].sel); |
| 5412 | |
| 5413 | tree_g.initialised--; |
| 5414 | |
| 5415 | NSLOG(netsurf, INFO, "Finalised treeview module")do { if (NSLOG_LEVEL_INFO >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_INFO, "desktop/treeview.c", sizeof("desktop/treeview.c" ) - 1, __PRETTY_FUNCTION__, sizeof(__PRETTY_FUNCTION__) - 1, 5415 , }; nslog__log(&_nslog_ctx, "Finalised treeview module") ; } } while(0); |
| 5416 | |
| 5417 | return NSERROR_OK; |
| 5418 | } |