Button bars (implementation). More...

#include <assert.h>
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <oslib/dragasprite.h>
#include <oslib/os.h>
#include <oslib/osspriteop.h>
#include <oslib/wimp.h>
#include <oslib/wimpspriteop.h>
#include "utils/log.h"
#include "riscos/gui/button_bar.h"
#include "riscos/gui.h"
#include "riscos/mouse.h"
#include "riscos/theme.h"
#include "riscos/wimp.h"

Include dependency graph for button_bar.c:

Data Structures
struct	button_bar_button

struct	button_bar

Macros
#define	BUTTONBAR_SPRITE_NAME_LENGTH 12

#define	BUTTONBAR_VALIDATION_LENGTH 40

Functions
static bool	ro_gui_button_bar_place_buttons (struct button_bar *button_bar)
	Place the buttons on a button bar, taking into account the button arrangement and the current theme, and update the bar extent details. More...

static bool	ro_gui_button_bar_icon_update (struct button_bar *button_bar)
	Update the icons on a button bar, creating or deleting them from the window as necessary. More...

static bool	ro_gui_button_bar_icon_resize (struct button_bar *button_bar)
	Position the icons in the button bar to take account of the currently configured extent. More...

static void	ro_gui_button_bar_drag_end (wimp_dragged drag, void data)
	Terminate a drag event that was initiated by a button bar. More...

static void	ro_gui_button_bar_sync_editors (struct button_bar target, struct button_bar source)
	Synchronise the shading of a button bar editor source bar with the currently defined buttons in its target bar. More...

static struct button_bar_button *	ro_gui_button_bar_find_icon (struct button_bar *button_bar, wimp_i icon)
	Find a button bar icon definition from an icon handle. More...

static struct button_bar_button *	ro_gui_button_bar_find_opt_key (struct button_bar *button_bar, char opt_key)
	Find a button bar icon definition from an options key code. More...

static struct button_bar_button *	ro_gui_button_bar_find_action (struct button_bar *button_bar, button_bar_action action)
	Find a button bar icon definition from an action code. More...

static struct button_bar_button *	ro_gui_button_bar_find_coords (struct button_bar button_bar, os_coord pos, bool separator, bool *right)
	Find a button bar icon definition from coordinates. More...

struct button_bar *	ro_gui_button_bar_create (struct theme_descriptor *theme, const struct button_bar_buttons buttons[])
	Create a new button bar widget. More...

bool	ro_gui_button_bar_link_editor (struct button_bar target, struct button_bar source, void(refresh)(void ), void *client_data)
	Link two button bars together. More...

bool	ro_gui_button_bar_rebuild (struct button_bar button_bar, struct theme_descriptor theme, theme_style style, wimp_w window, bool edit)
	Place a button bar into a toolbar window and initialise any theme-specific settings. More...

bool	ro_gui_button_bar_arrange_buttons (struct button_bar *button_bar, char order[])
	Arrange buttons on a button bar, using an order string to specify the required button and separator layout. More...

void	ro_gui_button_bar_destroy (struct button_bar *button_bar)
	Destroy a button bar widget. More...

bool	ro_gui_button_bar_get_dims (struct button_bar button_bar, int width, int *height)
	Return the MINIMUM dimensions required by the button bar, in RO units, allowing for the current theme. More...

bool	ro_gui_button_bar_set_extent (struct button_bar *button_bar, int x0, int y0, int x1, int y1)
	Set or update the dimensions to be used by the button bar, in RO units. More...

bool	ro_gui_button_bar_hide (struct button_bar *button_bar, bool hide)
	Show or hide a button bar. More...

bool	ro_gui_button_bar_shade_button (struct button_bar *button_bar, button_bar_action action, bool shaded)
	Shade or unshade a button in a bar corresponding to the given action. More...

void	ro_gui_button_bar_redraw (struct button_bar button_bar, wimp_draw redraw)
	Handle redraw event rectangles in a button bar. More...

bool	ro_gui_button_bar_click (struct button_bar button_bar, wimp_pointer pointer, wimp_window_state state, button_bar_action action)
	Handle mouse clicks in a button bar. More...

bool	ro_gui_button_bar_help_suffix (struct button_bar button_bar, wimp_i i, os_coord mouse, wimp_window_state state, wimp_mouse_state buttons, const char *suffix)
	Translate mouse data into an interactive help message for a button bar. More...

char *	ro_gui_button_bar_get_config (struct button_bar *button_bar)
	Return a config string reflecting the configured order of buttons and spacers. More...

Variables
static char	null_text_string [] = ""

static char	separator_name [] = "separator"

static struct button_bar *	drag_start = NULL

static char	drag_opt = '\0'

static bool	drag_separator = false

Detailed Description

Button bars (implementation).

Definition in file button_bar.c.

Macro Definition Documentation

◆ BUTTONBAR_SPRITE_NAME_LENGTH

#define BUTTONBAR_SPRITE_NAME_LENGTH 12

Definition at line 43 of file button_bar.c.

◆ BUTTONBAR_VALIDATION_LENGTH

#define BUTTONBAR_VALIDATION_LENGTH 40

Definition at line 44 of file button_bar.c.

Function Documentation

◆ ro_gui_button_bar_arrange_buttons()

bool ro_gui_button_bar_arrange_buttons	(	struct button_bar *	button_bar,
		char	order[]
	)

Arrange buttons on a button bar, using an order string to specify the required button and separator layout.

Parameters

*button_bar	The button bar to update.
order[]	The button order configuration string.

Returns: true if successful; else false.

Definition at line 303 of file button_bar.c.

References button_bar::bar, button_bar_button::bar_next, button_bar::buttons, button_bar_button::next, ro_gui_button_bar_find_opt_key(), ro_gui_button_bar_place_buttons(), and button_bar_button::separator.

Referenced by ro_toolbar_add_buttons(), and ro_toolbar_set_button_order().

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◆ ro_gui_button_bar_click()

bool ro_gui_button_bar_click	(	struct button_bar *	button_bar,
		wimp_pointer *	pointer,
		wimp_window_state *	state,
		button_bar_action *	action
	)

Handle mouse clicks in a button bar.

Parameters

*button_bar	The button bar to use.
*pointer	The Wimp mouse click event data.
*state	The toolbar window state.
*action	Returns the selected action, or TOOLBAR_BUTTON_NONE.

Returns: true if the event was handled exclusively; else false.

Definition at line 723 of file button_bar.c.

References button_bar_button::adjust_action, drag_opt, drag_separator, drag_start, button_bar::edit, button_bar::edit_source, button_bar::extent, button_bar::hidden, NSLOG, button_bar_button::opt_key, ro_gui_button_bar_drag_end(), ro_gui_button_bar_find_coords(), ro_gui_button_bar_find_icon(), ro_mouse_drag_start(), button_bar_button::select_action, separator_name, button_bar::separator_width, button_bar_button::shaded, button_bar_button::sprite, button_bar::sprites, box::x, button_bar_button::x_size, box::y, and button_bar_button::y_size.

Referenced by ro_toolbar_click().

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◆ ro_gui_button_bar_create()

struct button_bar * ro_gui_button_bar_create	(	struct theme_descriptor *	theme,
		const struct button_bar_buttons	buttons[]
	)

Create a new button bar widget.

Parameters

*theme	The theme to apply (or NULL for the default).
buttons[]	An array of button definitions for the bar.

Returns: A button bar handle, or NULL on failure.

Definition at line 130 of file button_bar.c.

References button_bar_buttons::adjust, button_bar::background, button_bar::bar, BUTTONBAR_SPRITE_NAME_LENGTH, BUTTONBAR_VALIDATION_LENGTH, button_bar::buttons, button_bar::edit, button_bar::edit_client_data, button_bar::edit_refresh, button_bar::edit_source, button_bar::edit_target, button_bar_buttons::help, button_bar::hidden, button_bar_button::icon, button_bar_buttons::icon, NSLOG, button_bar_buttons::opt_key, ro_gui_theme_get_sprites(), button_bar_buttons::select, button_bar::separator_width, button_bar::separators, button_bar::sprites, button_bar::theme, button_bar::vertical_offset, button_bar::window, button_bar::x_min, and button_bar::y_min.

Referenced by ro_toolbar_add_buttons().

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◆ ro_gui_button_bar_destroy()

void ro_gui_button_bar_destroy ( struct button_bar * button_bar )

Destroy a button bar widget.

Parameters

*button_bar The button bar to destroy.

Definition at line 395 of file button_bar.c.

References button_bar::buttons, and button_bar_button::next.

Referenced by ro_toolbar_destroy(), and ro_toolbar_rebuild().

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◆ ro_gui_button_bar_drag_end()

void ro_gui_button_bar_drag_end	(	wimp_dragged *	drag,
		void *	data
	)

static

Terminate a drag event that was initiated by a button bar.

Parameters

*drag	The drag event data.
*data	NULL data to satisfy callback syntax.

Definition at line 866 of file button_bar.c.

References button_bar_button::bar_next, drag_opt, drag_separator, drag_start, button_bar::edit_client_data, button_bar::edit_refresh, button_bar::edit_source, button_bar::edit_target, NSLOG, ro_gui_button_bar_find_coords(), ro_gui_button_bar_find_opt_key(), ro_gui_button_bar_icon_update(), ro_gui_button_bar_place_buttons(), ro_gui_button_bar_sync_editors(), ro_warn_user(), button_bar_button::separator, and button_bar::window.

Referenced by ro_gui_button_bar_click().

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◆ ro_gui_button_bar_find_action()

struct button_bar_button * ro_gui_button_bar_find_action	(	struct button_bar *	button_bar,
		button_bar_action	action
	)

static

Find a button bar icon definition from an action code.

Parameters

*button_bar	The button bar to use.
action	The button action to find.

Returns: Pointer to the button bar icon, or NULL.

Definition at line 1162 of file button_bar.c.

References button_bar_button::adjust_action, button_bar::buttons, button_bar_button::next, and button_bar_button::select_action.

Referenced by ro_gui_button_bar_shade_button().

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◆ ro_gui_button_bar_find_coords()

struct button_bar_button * ro_gui_button_bar_find_coords	(	struct button_bar *	button_bar,
		os_coord	pos,
		bool *	separator,
		bool *	right
	)

static

Find a button bar icon definition from coordinates.

Parameters

*button_bar	The button bar to use.
pos	The coordinates to find, work area relative.
*separator	Returns true if the associated separator was matched; else false.
*right	Returns true if the coordinates were in the right hand side of the target; else false.

Returns: Pointer to the button bar icon, or NULL.

Definition at line 1193 of file button_bar.c.

References button_bar::bar, button_bar_button::bar_next, button_bar::extent, button_bar_button::separator, button_bar::separator_width, button_bar_button::x_pos, button_bar_button::x_size, button_bar_button::y_pos, and button_bar_button::y_size.

Referenced by ro_gui_button_bar_click(), and ro_gui_button_bar_drag_end().

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◆ ro_gui_button_bar_find_icon()

struct button_bar_button * ro_gui_button_bar_find_icon	(	struct button_bar *	button_bar,
		wimp_i	icon
	)

static

Find a button bar icon definition from an icon handle.

Parameters

*button_bar	The button bar to use.
icon	The icon handle.

Returns: Pointer to the button bar icon, or NULL.

Definition at line 1112 of file button_bar.c.

References button_bar::buttons, button_bar_button::icon, and button_bar_button::next.

Referenced by ro_gui_button_bar_click(), and ro_gui_button_bar_help_suffix().

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◆ ro_gui_button_bar_find_opt_key()

struct button_bar_button * ro_gui_button_bar_find_opt_key	(	struct button_bar *	button_bar,
		char	opt_key
	)

static

Find a button bar icon definition from an options key code.

Parameters

*button_bar	The button bar to use.
opt_key	The option key character code.

Returns: Pointer to the button bar icon, or NULL.

Definition at line 1137 of file button_bar.c.

References button_bar::buttons, button_bar_button::next, and button_bar_button::opt_key.

Referenced by ro_gui_button_bar_arrange_buttons(), ro_gui_button_bar_drag_end(), and ro_gui_button_bar_sync_editors().

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◆ ro_gui_button_bar_get_config()

char * ro_gui_button_bar_get_config ( struct button_bar * button_bar )

Return a config string reflecting the configured order of buttons and spacers.

The string is allocated with malloc(), and should be free()d after use.

Parameters

*button_bar The button bar of interest.

Returns: Pointer to a config string, or NULL on failure.

Definition at line 1067 of file button_bar.c.

References button_bar::bar, button_bar_button::bar_next, NSLOG, button_bar_button::opt_key, ro_warn_user(), and button_bar_button::separator.

Referenced by ro_toolbar_toggle_edit().

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◆ ro_gui_button_bar_get_dims()

bool ro_gui_button_bar_get_dims	(	struct button_bar *	button_bar,
		int *	width,
		int *	height
	)

Return the MINIMUM dimensions required by the button bar, in RO units, allowing for the current theme.

Parameters

*button_bar	The button bar of interest.
*width	Return the required width.
*height	Return the required height.

Returns: true if values are returned; else false.

Definition at line 416 of file button_bar.c.

References height, width, button_bar::x_min, and button_bar::y_min.

Referenced by ro_toolbar_refresh_widget_dimensions().

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◆ ro_gui_button_bar_help_suffix()

bool ro_gui_button_bar_help_suffix	(	struct button_bar *	button_bar,
		wimp_i	i,
		os_coord *	mouse,
		wimp_window_state *	state,
		wimp_mouse_state	buttons,
		const char **	suffix
	)

Translate mouse data into an interactive help message for a button bar.

Parameters

*button_bar	The button bar to process.
i	The wimp icon under the pointer.
*mouse	The mouse position.
*state	The toolbar window state.
buttons	The mouse button state.
**suffix	Return a help token suffix, or "" for none.

Returns: true if handled exclusively; else false.

Definition at line 826 of file button_bar.c.

References button_bar::extent, button_bar_button::help_suffix, button_bar::hidden, and ro_gui_button_bar_find_icon().

Referenced by ro_toolbar_get_help_suffix().

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◆ ro_gui_button_bar_hide()

bool ro_gui_button_bar_hide	(	struct button_bar *	button_bar,
		bool	hide
	)

Show or hide a button bar.

Parameters

*button_bar	The button bar to hide.
hide	true to hide the bar; false to show it.

Returns: true if successful; else false.

Definition at line 627 of file button_bar.c.

References button_bar::hidden, and ro_gui_button_bar_icon_update().

Referenced by ro_toolbar_add_buttons(), ro_toolbar_set_display_buttons(), and ro_toolbar_toggle_edit().

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◆ ro_gui_button_bar_icon_resize()

bool ro_gui_button_bar_icon_resize ( struct button_bar * button_bar )

static

Position the icons in the button bar to take account of the currently configured extent.

Parameters

*button_bar The button bar to update.

Returns: true if successful; else false.

Definition at line 581 of file button_bar.c.

References button_bar::bar, button_bar_button::bar_next, button_bar::extent, button_bar::hidden, button_bar_button::icon, NSLOG, ro_warn_user(), button_bar::vertical_offset, button_bar::window, button_bar_button::x_pos, button_bar_button::x_size, button_bar_button::y_pos, and button_bar_button::y_size.

Referenced by ro_gui_button_bar_icon_update(), and ro_gui_button_bar_set_extent().

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◆ ro_gui_button_bar_icon_update()

bool ro_gui_button_bar_icon_update ( struct button_bar * button_bar )

static

Update the icons on a button bar, creating or deleting them from the window as necessary.

Definition at line 483 of file button_bar.c.

References button_bar::background, button_bar::bar, button_bar_button::bar_next, button_bar::buttons, button_bar::edit, button_bar::edit_target, button_bar::hidden, button_bar_button::icon, button_bar_button::next, NSLOG, null_text_string, ro_gui_button_bar_icon_resize(), ro_warn_user(), button_bar_button::shaded, button_bar_button::validation, and button_bar::window.

Referenced by ro_gui_button_bar_drag_end(), ro_gui_button_bar_hide(), and ro_gui_button_bar_rebuild().

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◆ ro_gui_button_bar_link_editor()

bool ro_gui_button_bar_link_editor	(	struct button_bar *	target,
		struct button_bar *	source,
		void()(void )	refresh,
		void *	client_data
	)

Link two button bars together.

Join two button bars the target being the active bar, and the source being the editing bar used to supply valid buttons. The bars are checked to ensure that they are not already part of an edit pair, but are not checked for button-compatibility.

Parameters

target	The target button bar.
source	The source button bar.
refresh	The refresh callback.
client_data	context passed to the refresh callback

Returns: true if successful; else false.

Definition at line 220 of file button_bar.c.

References button_bar::edit_client_data, button_bar::edit_refresh, button_bar::edit_source, and button_bar::edit_target.

Referenced by ro_toolbar_add_buttons().

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◆ ro_gui_button_bar_place_buttons()

bool ro_gui_button_bar_place_buttons ( struct button_bar * button_bar )

static

Place the buttons on a button bar, taking into account the button arrangement and the current theme, and update the bar extent details.

Parameters

*button_bar The button bar to update.

Returns: true if successful; else false.

Definition at line 359 of file button_bar.c.

References button_bar::bar, button_bar_button::bar_next, height, button_bar_button::separator, button_bar::separator_width, button_bar::x_min, button_bar_button::x_pos, button_bar_button::x_size, button_bar::y_min, button_bar_button::y_pos, and button_bar_button::y_size.

Referenced by ro_gui_button_bar_arrange_buttons(), ro_gui_button_bar_drag_end(), and ro_gui_button_bar_rebuild().

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◆ ro_gui_button_bar_rebuild()

bool ro_gui_button_bar_rebuild	(	struct button_bar *	button_bar,
		struct theme_descriptor *	theme,
		theme_style	style,
		wimp_w	window,
		bool	edit
	)

Place a button bar into a toolbar window and initialise any theme-specific settings.

Any previous incarnation of the bar will be forgotten: this is for use when a new toolbar is being created, or when a toolbar has been deleted and rebuilt following a theme change.

Parameters

*button_bar	The button bar to rebuild.
*theme	The theme to apply (or NULL for current).
style	The theme style to apply.
window	The window that the bar is in.
edit	The edit mode of the button bar.

Returns: true on success; else false.

Definition at line 245 of file button_bar.c.

References button_bar::background, button_bar::buttons, button_bar::edit, button_bar::edit_target, height, button_bar_button::icon, button_bar_button::next, ro_gui_button_bar_icon_update(), ro_gui_button_bar_place_buttons(), ro_gui_button_bar_sync_editors(), ro_gui_theme_get_sprites(), ro_gui_theme_get_style_element(), ro_gui_wimp_get_sprite_dimensions(), separator_name, button_bar::separator_width, button_bar::separators, button_bar_button::sprite, button_bar::sprites, button_bar::theme, THEME_ELEMENT_BACKGROUND, button_bar::window, button_bar_button::x_size, and button_bar_button::y_size.

Referenced by ro_toolbar_rebuild().

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◆ ro_gui_button_bar_redraw()

void ro_gui_button_bar_redraw	(	struct button_bar *	button_bar,
		wimp_draw *	redraw
	)

Handle redraw event rectangles in a button bar.

Parameters

*button_bar	The button bar to use.
*redraw	The Wimp redraw rectangle to process.

Definition at line 672 of file button_bar.c.

References button_bar::bar, button_bar_button::bar_next, button_bar::edit, button_bar::extent, button_bar::hidden, button_bar_button::icon, button_bar_button::separator, separator_name, button_bar::separator_width, button_bar::separators, button_bar::sprites, button_bar::vertical_offset, button_bar_button::x_pos, button_bar_button::x_size, and button_bar::y_min.

Referenced by ro_toolbar_redraw().

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◆ ro_gui_button_bar_set_extent()

bool ro_gui_button_bar_set_extent	(	struct button_bar *	button_bar,
		int	x0,
		int	y0,
		int	x1,
		int	y1
	)

Set or update the dimensions to be used by the button bar, in RO units.

If these are greater than the minimum required, the button bar will fill the extended space; if less, the call will fail.

Parameters

*button_bar	The button bar to update.
x0	The minimum X window position.
y0	The minimum Y window position.
x1	The maximum X window position.
y1	The maximum Y window position.

Returns: true if size updated; else false.

Definition at line 437 of file button_bar.c.

References button_bar::extent, ro_gui_button_bar_icon_resize(), button_bar::vertical_offset, button_bar::window, button_bar::x_min, and button_bar::y_min.

Referenced by ro_toolbar_reformat_widgets().

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◆ ro_gui_button_bar_shade_button()

bool ro_gui_button_bar_shade_button	(	struct button_bar *	button_bar,
		button_bar_action	action,
		bool	shaded
	)

Shade or unshade a button in a bar corresponding to the given action.

Parameters

*button_bar	The button bar to update.
action	The action to update.
shaded	true to shade the button; false to unshade.

Returns: true if successful; else false.

Definition at line 640 of file button_bar.c.

References button_bar::edit, button_bar::edit_target, button_bar_button::icon, ro_gui_button_bar_find_action(), ro_gui_set_icon_shaded_state(), button_bar_button::shaded, and button_bar::window.

Referenced by ro_toolbar_set_button_shaded_state().

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◆ ro_gui_button_bar_sync_editors()

void ro_gui_button_bar_sync_editors	(	struct button_bar *	target,
		struct button_bar *	source
	)

static

Synchronise the shading of a button bar editor source bar with the currently defined buttons in its target bar.

Parameters

*target	The editor target bar.
*source	The editor source bar.

Definition at line 1032 of file button_bar.c.

References button_bar::bar, button_bar_button::bar_next, button_bar_button::icon, button_bar_button::opt_key, ro_gui_button_bar_find_opt_key(), ro_gui_set_icon_shaded_state(), button_bar_button::shaded, and button_bar::window.

Referenced by ro_gui_button_bar_drag_end(), and ro_gui_button_bar_rebuild().

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Variable Documentation

◆ drag_opt

char drag_opt = '\0'

static

Definition at line 105 of file button_bar.c.

Referenced by ro_gui_button_bar_click(), and ro_gui_button_bar_drag_end().

◆ drag_separator

bool drag_separator = false

static

Definition at line 106 of file button_bar.c.

Referenced by ro_gui_button_bar_click(), and ro_gui_button_bar_drag_end().

◆ drag_start

struct button_bar* drag_start = NULL

static

Definition at line 104 of file button_bar.c.

Referenced by ro_gui_button_bar_click(), and ro_gui_button_bar_drag_end().

◆ null_text_string

char null_text_string[] = ""

static

Definition at line 101 of file button_bar.c.

Referenced by ro_gui_button_bar_icon_update().

◆ separator_name

char separator_name[] = "separator"

static

Definition at line 102 of file button_bar.c.

Referenced by ro_gui_button_bar_click(), ro_gui_button_bar_rebuild(), and ro_gui_button_bar_redraw().

Data Structures

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ BUTTONBAR_SPRITE_NAME_LENGTH

◆ BUTTONBAR_VALIDATION_LENGTH

Function Documentation

◆ ro_gui_button_bar_arrange_buttons()

◆ ro_gui_button_bar_click()

◆ ro_gui_button_bar_create()

◆ ro_gui_button_bar_destroy()

◆ ro_gui_button_bar_drag_end()

◆ ro_gui_button_bar_find_action()

◆ ro_gui_button_bar_find_coords()

◆ ro_gui_button_bar_find_icon()

◆ ro_gui_button_bar_find_opt_key()

◆ ro_gui_button_bar_get_config()

◆ ro_gui_button_bar_get_dims()

◆ ro_gui_button_bar_help_suffix()

◆ ro_gui_button_bar_hide()

◆ ro_gui_button_bar_icon_resize()

◆ ro_gui_button_bar_icon_update()

◆ ro_gui_button_bar_link_editor()

◆ ro_gui_button_bar_place_buttons()

◆ ro_gui_button_bar_rebuild()

◆ ro_gui_button_bar_redraw()

◆ ro_gui_button_bar_set_extent()

◆ ro_gui_button_bar_shade_button()

◆ ro_gui_button_bar_sync_editors()

Variable Documentation

◆ drag_opt

◆ drag_separator

◆ drag_start

◆ null_text_string

◆ separator_name