#include "netsurf/types.h"

Include dependency graph for fbtk.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	fbtk_callback_info
	widget callback information More...

struct	fbtk_bitmap
	framebuffer toolkit bitmaps More...

Macros
#define	FB_SCROLL_COLOUR 0xFFAAAAAA

#define	FB_FRAME_COLOUR 0xFFDDDDDD

#define	FB_COLOUR_BLACK 0xFF000000

#define	FB_COLOUR_WHITE 0xFFFFFFFF

#define	FBTK_WIDGET_PADDING 30
	percentage of widget size used for padding More...

#define	FBTK_DPI 90
	screen DPI More...

Typedefs
typedef struct fbtk_widget_s	fbtk_widget_t

typedef enum fbtk_callback_type	fbtk_callback_type
	Widget Callback type. More...

typedef struct fbtk_callback_info	fbtk_callback_info
	widget callback information More...

typedef enum fbtk_modifier_type	fbtk_modifier_type
	Key modifier status. More...

typedef int(*	fbtk_callback) (fbtk_widget_t widget, fbtk_callback_info cbi)

typedef int(*	fbtk_enter_t) (void pw, char text)

Enumerations
enum	fbtk_callback_type { FBTK_CBT_START = 0 , FBTK_CBT_SCROLLX , FBTK_CBT_SCROLLY , FBTK_CBT_CLICK , FBTK_CBT_INPUT , FBTK_CBT_POINTERMOVE , FBTK_CBT_POINTERLEAVE , FBTK_CBT_POINTERENTER , FBTK_CBT_REDRAW , FBTK_CBT_DESTROY , FBTK_CBT_USER , FBTK_CBT_STRIP_FOCUS , FBTK_CBT_END }
	Widget Callback type. More...

enum	fbtk_modifier_type { FBTK_MOD_CLEAR = 0 , FBTK_MOD_LSHIFT = (1 << 0) , FBTK_MOD_RSHIFT = (1 << 1) , FBTK_MOD_LCTRL = (1 << 2) , FBTK_MOD_RCTRL = (1 << 3) }
	Key modifier status. More...

Functions
fbtk_widget_t *	fbtk_init (nsfb_t *fb)
	Initialise widget toolkit. More...

nsfb_t *	fbtk_get_nsfb (fbtk_widget_t *widget)
	Retrieve the framebuffer library handle from toolkit widget. More...

int	fbtk_redraw (fbtk_widget_t *widget)
	Perform any pending widget redraws. More...

bool	fbtk_get_redraw_pending (fbtk_widget_t *widget)
	Determine if there are any redraws pending for a widget. More...

bool	fbtk_clip_to_widget (fbtk_widget_t widget, bbox_t restrict box)
	clip a bounding box to a widgets area. More...

bool	fbtk_clip_rect (const bbox_t restrict clip, bbox_t restrict box)
	clip one bounding box to another. More...

int	fbtk_post_callback (fbtk_widget_t *widget, fbtk_callback_type cbt,...)
	Helper function to allow simple calling of callbacks with parameters. More...

fbtk_callback	fbtk_set_handler (fbtk_widget_t widget, fbtk_callback_type cbt, fbtk_callback cb, void pw)
	Set a callback handler. More...

fbtk_callback	fbtk_get_handler (fbtk_widget_t *widget, fbtk_callback_type cbt)
	Get a callback handler. More...

bool	fbtk_event (fbtk_widget_t root, nsfb_event_t event, int timeout)
	Retrive events from the framebuffer input. More...

void	fbtk_click (fbtk_widget_t widget, nsfb_event_t event)
	Insert mouse button press into toolkit. More...

void	fbtk_input (fbtk_widget_t widget, nsfb_event_t event)
	Insert input into toolkit. More...

void	fbtk_warp_pointer (fbtk_widget_t *widget, int x, int y, bool relative)
	Move pointer. More...

bool	fbtk_tgrab_pointer (fbtk_widget_t *widget)
	Toggle pointer grab. More...

int	fbtk_keycode_to_ucs4 (int code, fbtk_modifier_type mods)
	Convert a framebuffer keycode to ucs4. More...

fbtk_widget_t *	fbtk_get_widget_at (fbtk_widget_t *widget, int x, int y)
	Obtain the widget at a point on screen. More...

int	fbtk_get_absx (fbtk_widget_t *widget)
	Get a widget's absolute horizontal screen co-ordinate. More...

int	fbtk_get_absy (fbtk_widget_t *widget)
	Get a widget's absolute vertical screen co-ordinate. More...

int	fbtk_get_width (fbtk_widget_t *widget)
	Get a widget's width. More...

int	fbtk_get_height (fbtk_widget_t *widget)
	Get a widget's height. More...

bool	fbtk_get_bbox (fbtk_widget_t widget, struct nsfb_bbox_s bbox)
	Get a widget's bounding box in absolute screen co-ordinates. More...

bool	fbtk_get_caret (fbtk_widget_t widget, int x, int y, int height)
	Get a widget caret pos, if it owns caret. More...

bool	fbtk_set_pos_and_size (fbtk_widget_t *widget, int x, int y, int width, int height)
	Change the widget's position and size. More...

void	fbtk_set_caret (fbtk_widget_t widget, bool set, int x, int y, int height, void(remove_caret)(fbtk_widget_t *widget))
	Set caret owner and position. More...

int	fbtk_set_mapping (fbtk_widget_t *widget, bool mapped)
	Map a widget and request it is redrawn. More...

int	fbtk_set_zorder (fbtk_widget_t *widget, int z)
	Set the z order of a widget. More...

void	fbtk_request_redraw (fbtk_widget_t *widget)
	Indicate a widget should be redrawn. More...

int	fbtk_destroy_widget (fbtk_widget_t *widget)
	Destroy a widget and all its descendants. More...

fbtk_widget_t *	fbtk_create_window (fbtk_widget_t *parent, int x, int y, int width, int height, colour bg)
	Create a window widget. More...

fbtk_widget_t *	fbtk_create_fill (fbtk_widget_t *window, int x, int y, int width, int height, colour c)
	Create a filled rectangle. More...

fbtk_widget_t *	fbtk_create_hscroll (fbtk_widget_t window, int x, int y, int width, int height, colour fg, colour bg, fbtk_callback callback, void context)
	Create a horizontal scroll widget. More...

fbtk_widget_t *	fbtk_create_vscroll (fbtk_widget_t window, int x, int y, int width, int height, colour fg, colour bg, fbtk_callback callback, void context)
	Create a vertical scroll widget. More...

bool	fbtk_set_scroll_parameters (fbtk_widget_t *widget, int min, int max, int thumb, int page)
	Set scoll widget parameters. More...

bool	fbtk_set_scroll_position (fbtk_widget_t *widget, int pos)
	set scroll widget position. More...

void	fbtk_reposition_hscroll (fbtk_widget_t *scrollh, int x, int y, int width, int height)
	Move and/or resize a horizontal scroll widget. More...

void	fbtk_reposition_vscroll (fbtk_widget_t *scrollv, int x, int y, int width, int height)
	Move and/or resize a vertical scroll widget. More...

fbtk_widget_t *	fbtk_create_user (fbtk_widget_t window, int x, int y, int width, int height, void pw)
	Create a user widget. More...

void *	fbtk_get_userpw (fbtk_widget_t *widget)
	Get the user context from a widget. More...

fbtk_widget_t *	fbtk_create_bitmap (fbtk_widget_t window, int x, int y, int width, int height, colour c, struct fbtk_bitmap image)
	Create a bitmap widget. More...

void	fbtk_set_bitmap (fbtk_widget_t widget, struct fbtk_bitmap image)
	Change the bitmap in a widget. More...

fbtk_widget_t *	fbtk_create_button (fbtk_widget_t window, int x, int y, int width, int height, colour c, struct fbtk_bitmap image, fbtk_callback click, void *pw)
	Create a button widget with an image. More...

fbtk_widget_t *	fbtk_create_text (fbtk_widget_t *window, int x, int y, int width, int height, colour bg, colour fg, bool outline)
	Create a text widget. More...

fbtk_widget_t *	fbtk_create_text_button (fbtk_widget_t window, int x, int y, int width, int height, colour bg, colour fg, fbtk_callback click, void pw)
	Create a button with text. More...

fbtk_widget_t *	fbtk_create_writable_text (fbtk_widget_t window, int x, int y, int width, int height, colour bg, colour fg, bool outline, fbtk_enter_t enter, void pw)
	Create a writable text widget. More...

void	fbtk_writable_text (fbtk_widget_t widget, fbtk_enter_t enter, void pw)
	Alter a text widget to be writable. More...

void	fbtk_set_text (fbtk_widget_t widget, const char text)
	Change the text of a text widget. More...

void	fbtk_set_focus (fbtk_widget_t *widget)
	Give widget input focus. More...

void	fbtk_enable_oskb (fbtk_widget_t *widget)
	enable the on screen keyboard for input More...

void	map_osk (void)
	show the osk. More...

Macro Definition Documentation

◆ FB_COLOUR_BLACK

#define FB_COLOUR_BLACK 0xFF000000

Definition at line 26 of file fbtk.h.

◆ FB_COLOUR_WHITE

#define FB_COLOUR_WHITE 0xFFFFFFFF

Definition at line 27 of file fbtk.h.

◆ FB_FRAME_COLOUR

#define FB_FRAME_COLOUR 0xFFDDDDDD

Definition at line 25 of file fbtk.h.

◆ FB_SCROLL_COLOUR

#define FB_SCROLL_COLOUR 0xFFAAAAAA

Definition at line 24 of file fbtk.h.

◆ FBTK_DPI

#define FBTK_DPI 90

screen DPI

Definition at line 30 of file fbtk.h.

◆ FBTK_WIDGET_PADDING

#define FBTK_WIDGET_PADDING 30

percentage of widget size used for padding

Definition at line 29 of file fbtk.h.

Typedef Documentation

◆ fbtk_callback

typedef int(* fbtk_callback) (fbtk_widget_t *widget, fbtk_callback_info *cbi)

Definition at line 83 of file fbtk.h.

◆ fbtk_callback_info

typedef struct fbtk_callback_info fbtk_callback_info

widget callback information

◆ fbtk_callback_type

typedef enum fbtk_callback_type fbtk_callback_type

Widget Callback type.

◆ fbtk_enter_t

typedef int(* fbtk_enter_t) (void *pw, char *text)

Definition at line 86 of file fbtk.h.

◆ fbtk_modifier_type

typedef enum fbtk_modifier_type fbtk_modifier_type

Key modifier status.

◆ fbtk_widget_t

typedef struct fbtk_widget_s fbtk_widget_t

Definition at line 32 of file fbtk.h.

Enumeration Type Documentation

◆ fbtk_callback_type

enum fbtk_callback_type

Widget Callback type.

Enumerator
FBTK_CBT_START
FBTK_CBT_SCROLLX
FBTK_CBT_SCROLLY
FBTK_CBT_CLICK
FBTK_CBT_INPUT
FBTK_CBT_POINTERMOVE
FBTK_CBT_POINTERLEAVE
FBTK_CBT_POINTERENTER
FBTK_CBT_REDRAW
FBTK_CBT_DESTROY
FBTK_CBT_USER
FBTK_CBT_STRIP_FOCUS
FBTK_CBT_END

Definition at line 35 of file fbtk.h.

◆ fbtk_modifier_type

enum fbtk_modifier_type

Key modifier status.

Enumerator
FBTK_MOD_CLEAR
FBTK_MOD_LSHIFT
FBTK_MOD_RSHIFT
FBTK_MOD_LCTRL
FBTK_MOD_RCTRL

Definition at line 75 of file fbtk.h.

Function Documentation

◆ fbtk_click()

void fbtk_click	(	fbtk_widget_t *	widget,
		nsfb_event_t *	event
	)

Insert mouse button press into toolkit.

Definition at line 63 of file event.c.

References FBTK_CBT_CLICK, FBTK_CBT_INPUT, fbtk_get_absx(), fbtk_get_absy(), fbtk_get_handler(), fbtk_get_root_widget(), fbtk_get_widget_at(), fbtk_post_callback(), fbtk_set_focus(), NSLOG, and root.

Referenced by fbtk_event().

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◆ fbtk_clip_rect()

bool fbtk_clip_rect	(	const bbox_t *restrict	clip,
		bbox_t *restrict	box
	)

clip one bounding box to another.

Definition at line 336 of file fbtk.c.

References clip(), REGION, and SWAP.

Referenced by fbtk_clip_to_widget().

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◆ fbtk_clip_to_widget()

bool fbtk_clip_to_widget	(	fbtk_widget_t *	widget,
		bbox_t *restrict	box
	)

clip a bounding box to a widgets area.

Definition at line 379 of file fbtk.c.

References fbtk_clip_rect(), fbtk_widget_s::height, and fbtk_widget_s::width.

Referenced by fb_queue_redraw().

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◆ fbtk_create_bitmap()

fbtk_widget_t * fbtk_create_bitmap	(	fbtk_widget_t *	window,
		int	x,
		int	y,
		int	width,
		int	height,
		colour	c,
		struct fbtk_bitmap *	image
	)

Create a bitmap widget.

Create a widget which shows a bitmap.

Parameters

window	The window to add the bitmap widget to.
x	X coordinate of widget.
y	Y coordinate of widget.
width	Width of the widget
height	Height of the widget
c	background colour
image	The bitmap to put in the widget

Returns: new widget handle or NULL on error.

Definition at line 84 of file bitmap.c.

References fbtk_widget_s::bg, fbtk_widget_s::bitmap, fb_redraw_bitmap(), FB_WIDGET_TYPE_BITMAP, FBTK_CBT_REDRAW, fbtk_set_handler(), fbtk_widget_new(), height, fbtk_widget_s::mapped, parent, fbtk_widget_s::u, and width.

Referenced by create_toolbar().

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◆ fbtk_create_button()

fbtk_widget_t * fbtk_create_button	(	fbtk_widget_t *	window,
		int	x,
		int	y,
		int	width,
		int	height,
		colour	c,
		struct fbtk_bitmap *	image,
		fbtk_callback	click,
		void *	pw
	)

Create a button widget with an image.

Helper function which creates a bitmap widget and associate a handler for when it is clicked.

Parameters

window	The window to add the button widget to.
x	X coordinate of widget.
y	Y coordinate of widget.
width	Width of the widget
height	Height of the widget
c	background colour
image	The bitmap to put in the widget
click	The callback upon a click
pw	The context tp pass to the callback

Returns: new widget handle or NULL on error.

Definition at line 107 of file bitmap.c.

References fbtk_widget_s::bg, fbtk_widget_s::bitmap, fb_redraw_bitmap(), FB_WIDGET_TYPE_BITMAP, FBTK_CBT_CLICK, FBTK_CBT_POINTERENTER, FBTK_CBT_REDRAW, fbtk_set_handler(), fbtk_set_ptr(), fbtk_widget_new(), hand_image, height, fbtk_widget_s::mapped, parent, fbtk_widget_s::u, and width.

Referenced by create_normal_browser_window(), create_toolbar(), fbtk_create_hscroll(), fbtk_create_vscroll(), and fbtk_enable_oskb().

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◆ fbtk_create_fill()

fbtk_widget_t * fbtk_create_fill	(	fbtk_widget_t *	window,
		int	x,
		int	y,
		int	width,
		int	height,
		colour	c
	)

Create a filled rectangle.

Create a widget which is a filled rectangle, usually used for backgrounds.

Parameters

window	The window to add the filled area widget to.
x	X coordinate of widget.
y	Y coordinate of widget.
width	Width of the widget
height	Height of the widget
c	widget colour

Returns: new widget handle or NULL on error.

Definition at line 59 of file fill.c.

References fbtk_widget_s::bg, fb_redraw_fill(), FB_WIDGET_TYPE_FILL, FBTK_CBT_REDRAW, fbtk_set_handler(), fbtk_widget_new(), height, fbtk_widget_s::mapped, parent, and width.

Referenced by create_normal_browser_window(), and fb_corewindow_init().

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◆ fbtk_create_hscroll()

fbtk_widget_t * fbtk_create_hscroll	(	fbtk_widget_t *	window,
		int	x,
		int	y,
		int	width,
		int	height,
		colour	fg,
		colour	bg,
		fbtk_callback	callback,
		void *	context
	)

Create a horizontal scroll widget.

Parameters

window	The window to add the filled area widget to.
x	X coordinate of widget.
y	Y coordinate of widget.
width	Width of the widget
height	Height of the widget
bg	background colour
fg	foreground colour
callback	Called on scroll
context	context passed to callback.

Returns: new widget handle or NULL on error.

Definition at line 463 of file scroll.c.

References fbtk_widget_s::bg, fbtk_widget_s::btndr, fbtk_widget_s::btnul, FB_WIDGET_TYPE_HSCROLL, FBTK_CBT_CLICK, FBTK_CBT_REDRAW, FBTK_CBT_SCROLLX, fbtk_create_button(), fbtk_set_handler(), fbtk_widget_new(), fbtk_widget_s::fg, height, hscroll_redraw(), hscrollarea_click(), hscrolll_click(), hscrollr_click(), fbtk_widget_s::mapped, parent, fbtk_widget_s::scroll, scrolll, scrollr, fbtk_widget_s::u, fbtk_bitmap::width, and width.

Referenced by create_normal_browser_window(), and fb_corewindow_init().

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◆ fbtk_create_text()

fbtk_widget_t * fbtk_create_text	(	fbtk_widget_t *	window,
		int	x,
		int	y,
		int	width,
		int	height,
		colour	bg,
		colour	fg,
		bool	outline
	)

Create a text widget.

Parameters

window	The window to add the text widget to.
x	X coordinate of widget.
y	Y coordinate of widget.
width	Width of the widget
height	Height of the widget
bg	background colour
fg	foreground colour
outline	widget will have a border.

Returns: new widget handle or NULL on error.

Definition at line 581 of file text.c.

References fbtk_widget_s::bg, fb_destroy_text(), fb_redraw_text(), FB_WIDGET_TYPE_TEXT, FBTK_CBT_DESTROY, FBTK_CBT_REDRAW, fbtk_set_handler(), fbtk_widget_new(), fbtk_widget_s::fg, height, fbtk_widget_s::mapped, parent, fbtk_widget_s::text, fbtk_widget_s::u, and width.

Referenced by create_normal_browser_window().

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◆ fbtk_create_text_button()

fbtk_widget_t * fbtk_create_text_button	(	fbtk_widget_t *	window,
		int	x,
		int	y,
		int	width,
		int	height,
		colour	bg,
		colour	fg,
		fbtk_callback	click,
		void *	pw
	)

Create a button with text.

Parameters

window	The window to add the text widget to.
x	X coordinate of widget.
y	Y coordinate of widget.
width	Width of the widget
height	Height of the widget
bg	background colour
fg	foreground colour
click	The callback upon a click
pw	The context tp pass to the callback

Returns: new widget handle or NULL on error.

Definition at line 639 of file text.c.

References fbtk_widget_s::bg, fb_destroy_text(), fb_redraw_text_button(), FB_WIDGET_TYPE_TEXT, FBTK_CBT_CLICK, FBTK_CBT_DESTROY, FBTK_CBT_POINTERENTER, FBTK_CBT_REDRAW, fbtk_set_handler(), fbtk_set_ptr(), fbtk_widget_new(), fbtk_widget_s::fg, hand_image, height, fbtk_widget_s::mapped, parent, fbtk_widget_s::text, fbtk_widget_s::u, and width.

Referenced by create_normal_browser_window(), and fbtk_enable_oskb().

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◆ fbtk_create_user()

fbtk_widget_t * fbtk_create_user	(	fbtk_widget_t *	window,
		int	x,
		int	y,
		int	width,
		int	height,
		void *	pw
	)

Create a user widget.

Create a widget which is to be handled entirely by the calling application.

Parameters

window	The window to add the user widget to.
x	X coordinate of widget.
y	Y coordinate of widget.
width	Width of the widget
height	Height of the widget
pw	The private pointer which can be read using fbtk_get_userpw

Returns: new widget handle or NULL on error.

Definition at line 43 of file user.c.

References FB_WIDGET_TYPE_USER, fbtk_widget_new(), height, fbtk_widget_s::mapped, parent, fbtk_widget_s::pw, fbtk_widget_s::u, fbtk_widget_s::user, and width.

Referenced by create_browser_widget(), and fb_corewindow_init().

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◆ fbtk_create_vscroll()

fbtk_widget_t * fbtk_create_vscroll	(	fbtk_widget_t *	window,
		int	x,
		int	y,
		int	width,
		int	height,
		colour	fg,
		colour	bg,
		fbtk_callback	callback,
		void *	context
	)

Create a vertical scroll widget.

Parameters

window	The window to add the filled area widget to.
x	X coordinate of widget.
y	Y coordinate of widget.
width	Width of the widget
height	Height of the widget
bg	background colour
fg	foreground colour
callback	Called on scroll
context	context passed to callback.

Returns: new widget handle or NULL on error.

Definition at line 224 of file scroll.c.

References fbtk_widget_s::bg, fbtk_widget_s::btndr, fbtk_widget_s::btnul, FB_WIDGET_TYPE_VSCROLL, FBTK_CBT_CLICK, FBTK_CBT_REDRAW, FBTK_CBT_SCROLLY, fbtk_create_button(), fbtk_set_handler(), fbtk_widget_new(), fbtk_widget_s::fg, fbtk_bitmap::height, height, fbtk_widget_s::mapped, parent, fbtk_widget_s::scroll, scrolld, scrollu, fbtk_widget_s::u, vscroll_redraw(), vscrollarea_click(), vscrolld_click(), vscrollu_click(), and width.

Referenced by create_normal_browser_window(), and fb_corewindow_init().

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◆ fbtk_create_window()

fbtk_widget_t * fbtk_create_window	(	fbtk_widget_t *	parent,
		int	x,
		int	y,
		int	width,
		int	height,
		colour	bg
	)

Create a window widget.

Parameters

parent	The parent window or the root widget for a top level window.
x	The x location relative to the parent window.
y	the y location relative to the parent window.
width	The width of the window. 0 indicates parents width should be used. Negative value indicates parents width less the value should be used. The width is limited to lie within the parent window.
height	The height of the window limited in a similar way to the /a width.
bg	The background colour.

Returns: new window widget handle or NULL on error.

Definition at line 66 of file window.c.

References fbtk_widget_s::bg, fb_redraw_window(), FB_WIDGET_TYPE_WINDOW, FBTK_CBT_REDRAW, fbtk_set_handler(), fbtk_widget_new(), height, parent, and width.

Referenced by create_normal_browser_window(), create_toolbar(), fb_corewindow_init(), and fbtk_enable_oskb().

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◆ fbtk_create_writable_text()

fbtk_widget_t * fbtk_create_writable_text	(	fbtk_widget_t *	window,
		int	x,
		int	y,
		int	width,
		int	height,
		colour	bg,
		colour	fg,
		bool	outline,
		fbtk_enter_t	enter,
		void *	pw
	)

Create a writable text widget.

Helper function which creates a text widget and configures an input handler to create a writable text field. This call is equivalent to calling fbtk_create_text followed by fbtk_writable_text

Parameters

window	The window to add the text widget to.
x	X coordinate of widget.
y	Y coordinate of widget.
width	Width of the widget
height	Height of the widget
bg	background colour
fg	foreground colour
outline	widget will have a border.
enter	Callback when enter is pressed in widget.
pw	Context pointer passed to entry callback.

Returns: new widget handle or NULL on error.

Definition at line 606 of file text.c.

References fbtk_widget_s::bg, fb_destroy_text(), fb_redraw_text(), FB_WIDGET_TYPE_TEXT, FBTK_CBT_CLICK, FBTK_CBT_DESTROY, FBTK_CBT_INPUT, FBTK_CBT_REDRAW, FBTK_CBT_STRIP_FOCUS, fbtk_set_handler(), fbtk_widget_new(), fbtk_widget_s::fg, height, fbtk_widget_s::mapped, parent, fbtk_widget_s::text, text_input(), text_input_click(), text_input_strip_focus(), fbtk_widget_s::u, and width.

Referenced by create_toolbar().

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◆ fbtk_destroy_widget()

int fbtk_destroy_widget ( fbtk_widget_t * widget )

Destroy a widget and all its descendants.

Removes a widget from the hierachy and frees it and all its children.

Parameters

widget The widget to destroy.

Returns: 0 on success or -1 on error.

Definition at line 282 of file fbtk.c.

References FBTK_CBT_DESTROY, fbtk_destroy_widget(), fbtk_post_callback(), fbtk_widget_s::first_child, fbtk_widget_s::next, fbtk_widget_s::parent, parent, and fbtk_widget_s::prev.

Referenced by fbtk_destroy_widget(), and gui_window_destroy().

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◆ fbtk_enable_oskb()

void fbtk_enable_oskb ( fbtk_widget_t * widget )

enable the on screen keyboard for input

Parameters

widget Widget to be given input focus.

Definition at line 138 of file osk.c.

References FB_COLOUR_BLACK, FB_FRAME_COLOUR, fbtk, fbtk_create_button(), fbtk_create_text_button(), fbtk_create_window(), fbtk_get_height(), fbtk_get_root_widget(), fbtk_get_width(), fbtk_set_text(), kbd_button_s::h, kbdbase, KEYCOUNT, osk, osk_click(), osk_close(), osk_image, root, kbd_button_s::t, kbd_button_s::w, kbd_button_s::x, and kbd_button_s::y.

Referenced by main().

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◆ fbtk_event()

bool fbtk_event	(	fbtk_widget_t *	root,
		nsfb_event_t *	event,
		int	timeout
	)

Retrive events from the framebuffer input.

Obtain events from the framebuffer input system with a timeout. Some events may be used by the toolkit instead of being returned to the caller.

Parameters

root	An fbtk widget.
event	an event structure to update.
timeout	The number of miliseconds to wait for an event. 0 means do not wait and -1 means wait foreevr.

Returns: wether event has been updated.

Definition at line 188 of file event.c.

References fbtk_click(), fbtk_get_root_widget(), fbtk_input(), fbtk_warp_pointer(), gui_resize(), and root.

Referenced by framebuffer_run().

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◆ fbtk_get_absx()

int fbtk_get_absx ( fbtk_widget_t * widget )

Get a widget's absolute horizontal screen co-ordinate.

Parameters

widget The widget to inspect.

Returns: The absolute screen co-ordinate.

Definition at line 430 of file fbtk.c.

References fbtk_widget_s::parent, and fbtk_widget_s::x.

Referenced by create_normal_browser_window(), do_redraw(), fb_cw_draw_event(), fb_pan(), fb_redraw(), fbtk_click(), and fbtk_warp_pointer().

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◆ fbtk_get_absy()

int fbtk_get_absy ( fbtk_widget_t * widget )

Get a widget's absolute vertical screen co-ordinate.

Parameters

widget The widget to inspect.

Returns: The absolute screen co-ordinate.

Definition at line 445 of file fbtk.c.

References fbtk_widget_s::parent, and fbtk_widget_s::y.

Referenced by create_normal_browser_window(), do_redraw(), fb_cw_draw_event(), fb_pan(), fb_redraw(), fbtk_click(), and fbtk_warp_pointer().

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◆ fbtk_get_bbox()

bool fbtk_get_bbox	(	fbtk_widget_t *	widget,
		struct nsfb_bbox_s *	bbox
	)

Get a widget's bounding box in absolute screen co-ordinates.

Parameters

widget	The widget to inspect.
bbox	The bounding box structure to update.

Returns: If the bbox parameter has been updated.

Referenced by fb_redraw_bitmap(), fb_redraw_fill(), fb_redraw_text(), fb_redraw_text_button(), fb_redraw_window(), hscroll_redraw(), and vscroll_redraw().

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◆ fbtk_get_caret()

bool fbtk_get_caret	(	fbtk_widget_t *	widget,
		int *	x,
		int *	y,
		int *	height
	)

Get a widget caret pos, if it owns caret.

Parameters

widget	The widget to inspect.
x	If widget has caret, returns x-coord of caret within widget
y	If widget has caret, returns y-coord of caret within widget
height	If widget has caret, returns caret height

Returns: true iff widget has caret

Definition at line 494 of file fbtk.c.

References fbtk_get_root_widget(), height, and root.

Referenced by fb_redraw(), fb_redraw_text(), fb_text_input_remove_caret_cb(), fbtk_set_text(), gui_window_remove_caret(), and gui_window_remove_caret_cb().

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◆ fbtk_get_handler()

fbtk_callback fbtk_get_handler	(	fbtk_widget_t *	widget,
		fbtk_callback_type	cbt
	)

Get a callback handler.

Definition at line 681 of file fbtk.c.

References fbtk_widget_s::callback, FBTK_CBT_END, and FBTK_CBT_START.

Referenced by fbtk_click().

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◆ fbtk_get_height()

int fbtk_get_height ( fbtk_widget_t * widget )

Get a widget's height.

Parameters

widget The widget to inspect.

Returns: The widget height.

Definition at line 460 of file fbtk.c.

References fbtk_widget_s::height.

Referenced by create_normal_browser_window(), fb_browser_window_input(), fb_browser_window_redraw(), fb_corewindow_init(), fb_cw_draw_event(), fb_cw_get_window_dimensions(), fb_local_history_present(), fb_pan(), fb_window_invalidate_area(), fbtk_enable_oskb(), gui_window_get_dimensions(), gui_window_update_extent(), resize_normal_browser_window(), and widget_scroll_y().

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◆ fbtk_get_nsfb()

nsfb_t * fbtk_get_nsfb ( fbtk_widget_t * widget )

Retrieve the framebuffer library handle from toolkit widget.

Parameters

widget A fbtk widget.

Returns: The underlying framebuffer.

Definition at line 802 of file fbtk.c.

References fbtk_get_root_widget(), and root.

Referenced by fb_cw_draw_event(), fb_pan(), fb_redraw(), fb_redraw_bitmap(), fb_redraw_fill(), fb_redraw_text(), fb_redraw_window(), and gui_resize().

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◆ fbtk_get_redraw_pending()

bool fbtk_get_redraw_pending ( fbtk_widget_t * widget )

Determine if there are any redraws pending for a widget.

Mainly used by clients on the root widget to determine if they need to call fbtk_redraw

Parameters

widget to check.

Definition at line 611 of file fbtk.c.

References fbtk_get_root_widget(), and root.

Referenced by framebuffer_run().

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◆ fbtk_get_userpw()

void * fbtk_get_userpw ( fbtk_widget_t * widget )

Get the user context from a widget.

Parameters

widget The widget to get the context from.

Returns: The context or NULL.

Definition at line 32 of file user.c.

References FB_WIDGET_TYPE_USER, fbtk_widget_s::pw, fbtk_widget_s::type, fbtk_widget_s::u, and fbtk_widget_s::user.

Referenced by fb_browser_window_click(), fb_browser_window_destroy(), fb_browser_window_move(), fb_browser_window_redraw(), fb_queue_redraw(), fb_window_invalidate_area(), gui_window_get_scroll(), gui_window_place_caret(), gui_window_remove_caret_cb(), gui_window_set_scroll(), widget_scroll_x(), and widget_scroll_y().

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◆ fbtk_get_widget_at()

fbtk_widget_t * fbtk_get_widget_at	(	fbtk_widget_t *	widget,
		int	x,
		int	y
	)

Obtain the widget at a point on screen.

Parameters

widget	any tookit widget.
x	location in horizontal plane.
y	location in vertical plane.

Returns: widget or NULL.

Definition at line 516 of file fbtk.c.

References fbtk_get_root_widget(), fbtk_widget_s::first_child, fbtk_widget_s::height, fbtk_widget_s::mapped, fbtk_widget_s::next, fbtk_widget_s::width, fbtk_widget_s::x, and fbtk_widget_s::y.

Referenced by fbtk_click(), and fbtk_warp_pointer().

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◆ fbtk_get_width()

int fbtk_get_width ( fbtk_widget_t * widget )

Get a widget's width.

Parameters

widget The widget to inspect.

Returns: The widget width.

Definition at line 467 of file fbtk.c.

References fbtk_widget_s::width.

Referenced by create_normal_browser_window(), create_toolbar(), fb_browser_window_input(), fb_browser_window_redraw(), fb_corewindow_init(), fb_cw_draw_event(), fb_cw_get_window_dimensions(), fb_local_history_present(), fb_pan(), fb_window_invalidate_area(), fbtk_enable_oskb(), gui_window_get_dimensions(), gui_window_update_extent(), resize_normal_browser_window(), resize_toolbar(), and widget_scroll_x().

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◆ fbtk_init()

fbtk_widget_t * fbtk_init ( nsfb_t * fb )

Initialise widget toolkit.

Initialises widget toolkit against a framebuffer.

Parameters

fb	The underlying framebuffer.

Returns: The root widget handle.

Definition at line 814 of file fbtk.c.

References FB_WIDGET_TYPE_ROOT, and root.

Referenced by main().

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◆ fbtk_input()

void fbtk_input	(	fbtk_widget_t *	widget,
		nsfb_event_t *	event
	)

Insert input into toolkit.

Definition at line 45 of file event.c.

References FBTK_CBT_INPUT, fbtk_get_root_widget(), fbtk_post_callback(), NSLOG, and root.

Referenced by fbtk_event(), and osk_click().

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◆ fbtk_keycode_to_ucs4()

int fbtk_keycode_to_ucs4	(	int	code,
		fbtk_modifier_type	mods
	)

Convert a framebuffer keycode to ucs4.

Character mapping between keycode with modifier state and ucs-4.

Definition at line 301 of file event.c.

References FBTK_MOD_CLEAR, FBTK_MOD_LCTRL, FBTK_MOD_LSHIFT, FBTK_MOD_RCTRL, FBTK_MOD_RSHIFT, keymap, NOF_ELEMENTS, NS_KEY_CLEAR_SELECTION, NS_KEY_COPY_SELECTION, NS_KEY_CUT_SELECTION, NS_KEY_DELETE_LINE, NS_KEY_PASTE, NS_KEY_SELECT_ALL, and sh_keymap.

Referenced by fb_browser_window_input(), and text_input().

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◆ fbtk_post_callback()

int fbtk_post_callback	(	fbtk_widget_t *	widget,
		fbtk_callback_type	cbt,
			...
	)

Helper function to allow simple calling of callbacks with parameters.

Parameters

widget	The fbtk widget to post the callback to.
cbt	The type of callback to post
...	Parameters appropriate for the callback type.

Definition at line 715 of file fbtk.c.

References fbtk_widget_s::callback, fbtk_widget_s::callback_context, fbtk_callback_info::context, fbtk_callback_info::event, FBTK_CBT_CLICK, FBTK_CBT_INPUT, FBTK_CBT_POINTERMOVE, FBTK_CBT_REDRAW, FBTK_CBT_SCROLLX, FBTK_CBT_SCROLLY, FBTK_CBT_STRIP_FOCUS, FBTK_CBT_USER, fbtk_widget_s::mapped, fbtk_callback_info::type, fbtk_callback_info::x, and fbtk_callback_info::y.

Referenced by do_redraw(), fbtk_click(), fbtk_destroy_widget(), fbtk_input(), fbtk_set_focus(), fbtk_warp_pointer(), hscroll_drag(), hscrollarea_click(), hscrolll_click(), hscrollr_click(), vscroll_drag(), vscrollarea_click(), vscrolld_click(), and vscrollu_click().

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◆ fbtk_redraw()

int fbtk_redraw ( fbtk_widget_t * widget )

Perform any pending widget redraws.

Parameters

widget A fbtk widget.

Definition at line 669 of file fbtk.c.

References do_redraw(), fbtk_get_root_widget(), and root.

Referenced by framebuffer_run().

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◆ fbtk_reposition_hscroll()

void fbtk_reposition_hscroll	(	fbtk_widget_t *	scrollh,
		int	x,
		int	y,
		int	width,
		int	height
	)

Move and/or resize a horizontal scroll widget.

Parameters

scrollh	the horizontal scroll widget
x	new x pos
y	new y pos
width	new width
height	new height

Definition at line 515 of file scroll.c.

References fbtk_widget_s::btndr, fbtk_widget_s::btnul, FB_WIDGET_TYPE_HSCROLL, fbtk_set_pos_and_size(), height, fbtk_widget_s::scroll, scrolll, scrollr, fbtk_widget_s::type, fbtk_widget_s::u, fbtk_bitmap::width, and width.

Referenced by resize_normal_browser_window().

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◆ fbtk_reposition_vscroll()

void fbtk_reposition_vscroll	(	fbtk_widget_t *	scrollv,
		int	x,
		int	y,
		int	width,
		int	height
	)

Move and/or resize a vertical scroll widget.

Parameters

scrollv	the vertical scroll widget
x	new x pos
y	new y pos
width	new width
height	new height

Definition at line 280 of file scroll.c.

References fbtk_widget_s::btndr, fbtk_widget_s::btnul, FB_WIDGET_TYPE_VSCROLL, fbtk_set_pos_and_size(), fbtk_bitmap::height, height, fbtk_widget_s::scroll, scrolld, scrollu, fbtk_widget_s::type, fbtk_widget_s::u, and width.

Referenced by resize_normal_browser_window().

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◆ fbtk_request_redraw()

void fbtk_request_redraw ( fbtk_widget_t * widget )

Indicate a widget should be redrawn.

Definition at line 82 of file fbtk.c.

References fbtk_widget_s::child, fbtk, fbtk_request_redraw(), fbtk_widget_s::height, fbtk_widget_s::last_child, fbtk_widget_s::mapped, fbtk_widget_s::needed, NSLOG, fbtk_widget_s::parent, fbtk_widget_s::prev, fbtk_widget_s::redraw, fbtk_widget_s::width, fbtk_widget_s::x, and fbtk_widget_s::y.

Referenced by fb_queue_redraw(), fb_text_input_remove_caret_cb(), fbtk_request_redraw(), fbtk_set_bitmap(), fbtk_set_mapping(), fbtk_set_scroll_parameters(), fbtk_set_scroll_position(), fbtk_set_text(), gui_resize(), text_input(), text_input_click(), widget_scroll_x(), and widget_scroll_y().

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◆ fbtk_set_bitmap()

void fbtk_set_bitmap	(	fbtk_widget_t *	widget,
		struct fbtk_bitmap *	image
	)

Change the bitmap in a widget.

Parameters

widget	The widget to get the context from.
image	The bitmap to put in the widget

Definition at line 72 of file bitmap.c.

References fbtk_widget_s::bitmap, FB_WIDGET_TYPE_BITMAP, fbtk_request_redraw(), fbtk_widget_s::type, and fbtk_widget_s::u.

Referenced by fb_update_back_forward(), gui_window_stop_throbber(), and throbber_advance().

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◆ fbtk_set_caret()

void fbtk_set_caret	(	fbtk_widget_t *	widget,
		bool	set,
		int	x,
		int	y,
		int	height,
		void()(fbtk_widget_t widget)	remove_caret
	)

Set caret owner and position.

Parameters

widget	widget to give caret to, or ensure caret is released from
set	true: caret to be set for widget, false: caret to be released
x	x-coordinate of caret top
y	y-coordinate of caret top
height	height of caret
remove_caret	callback when caret is removed.

Definition at line 252 of file fbtk.c.

References fbtk_get_root_widget(), height, and root.

Referenced by fb_browser_window_strip_focus(), fbtk_set_text(), gui_window_place_caret(), gui_window_remove_caret(), text_input(), text_input_click(), and text_input_strip_focus().

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◆ fbtk_set_focus()

void fbtk_set_focus ( fbtk_widget_t * widget )

Give widget input focus.

Parameters

widget Widget to be given input focus.

Definition at line 781 of file fbtk.c.

References FBTK_CBT_STRIP_FOCUS, fbtk_get_root_widget(), fbtk_post_callback(), and root.

Referenced by create_normal_browser_window(), and fbtk_click().

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◆ fbtk_set_handler()

fbtk_callback fbtk_set_handler	(	fbtk_widget_t *	widget,
		fbtk_callback_type	cbt,
		fbtk_callback	cb,
		void *	pw
	)

Set a callback handler.

Set a callback handler and the pointer to pass for a widget.

Parameters

widget	The widget to set the handler for.
cbt	The type of callback to set.
cb	The callback.
pw	The private pointer to pass when calling the callback.

Returns: The previous callback handler for the type or NULL.

Definition at line 693 of file fbtk.c.

References fbtk_widget_s::callback, fbtk_widget_s::callback_context, FBTK_CBT_END, and FBTK_CBT_START.

Referenced by create_browser_widget(), create_normal_browser_window(), create_toolbar(), fb_corewindow_init(), fbtk_create_bitmap(), fbtk_create_button(), fbtk_create_fill(), fbtk_create_hscroll(), fbtk_create_text(), fbtk_create_text_button(), fbtk_create_vscroll(), fbtk_create_window(), fbtk_create_writable_text(), fbtk_writable_text(), hscrollarea_click(), and vscrollarea_click().

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◆ fbtk_set_mapping()

int fbtk_set_mapping	(	fbtk_widget_t *	widget,
		bool	mapped
	)

Map a widget and request it is redrawn.

Definition at line 127 of file fbtk.c.

References fbtk_request_redraw(), fbtk_widget_s::mapped, NSLOG, and fbtk_widget_s::parent.

Referenced by create_toolbar(), fb_local_history_hide(), fb_local_history_mouse(), fb_local_history_present(), gui_window_create(), map_osk(), and osk_close().

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◆ fbtk_set_pos_and_size()

bool fbtk_set_pos_and_size	(	fbtk_widget_t *	widget,
		int	x,
		int	y,
		int	width,
		int	height
	)

Change the widget's position and size.

(Doesn't redraw)

Definition at line 209 of file fbtk.c.

References fbtk_widget_s::height, height, fbtk_widget_s::parent, parent, fbtk_widget_s::width, width, fbtk_widget_s::x, and fbtk_widget_s::y.

Referenced by fbtk_reposition_hscroll(), fbtk_reposition_vscroll(), gui_resize(), resize_browser_widget(), resize_normal_browser_window(), and resize_toolbar().

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◆ fbtk_set_scroll_parameters()

bool fbtk_set_scroll_parameters	(	fbtk_widget_t *	widget,
		int	min,
		int	max,
		int	thumb,
		int	page
	)

Set scoll widget parameters.

Parameters

widget	The widget to set the parameters for.
min	The minimum range value.
max	The maximum range value.
thumb	The size of the slider.
page	The amout to scroll for a page.

Returns: true if the scroll parameter was set else false.

Definition at line 535 of file scroll.c.

References FB_WIDGET_TYPE_HSCROLL, FB_WIDGET_TYPE_VSCROLL, fbtk_request_redraw(), max, fbtk_widget_s::maximum, min, fbtk_widget_s::minimum, fbtk_widget_s::page, fbtk_widget_s::position, fbtk_widget_s::scroll, fbtk_widget_s::thumb, fbtk_widget_s::type, and fbtk_widget_s::u.

Referenced by gui_window_update_extent().

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◆ fbtk_set_scroll_position()

bool fbtk_set_scroll_position	(	fbtk_widget_t *	widget,
		int	pos
	)

set scroll widget position.

Parameters

widget	The widget to set the position on.
pos	The position to set

Returns: true if the scroll parameter was set else false.

Definition at line 565 of file scroll.c.

References FB_WIDGET_TYPE_HSCROLL, FB_WIDGET_TYPE_VSCROLL, fbtk_request_redraw(), fbtk_widget_s::maximum, fbtk_widget_s::position, fbtk_widget_s::scroll, fbtk_widget_s::type, and fbtk_widget_s::u.

Referenced by widget_scroll_x(), and widget_scroll_y().

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◆ fbtk_set_text()

void fbtk_set_text	(	fbtk_widget_t *	widget,
		const char *	text
	)

Change the text of a text widget.

Parameters

widget	Text widget.
text	The new UTF-8 text to put in the widget.

Definition at line 542 of file text.c.

References fb_font_width(), fb_text_font_style(), fb_text_input_remove_caret_cb(), FB_WIDGET_TYPE_TEXT, fbtk_get_caret(), fbtk_request_redraw(), fbtk_set_caret(), fbtk_widget_s::height, fbtk_widget_s::text, text(), fbtk_widget_s::type, and fbtk_widget_s::u.

Referenced by fbtk_enable_oskb(), gui_window_set_status(), and gui_window_set_url().

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◆ fbtk_set_zorder()

int fbtk_set_zorder	(	fbtk_widget_t *	widget,
		int	z
	)

Set the z order of a widget.

Definition at line 181 of file fbtk.c.

References fbtk_widget_s::next, fbtk_widget_s::prev, and swap_siblings().

Referenced by fb_local_history_present(), and map_osk().

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◆ fbtk_tgrab_pointer()

bool fbtk_tgrab_pointer ( fbtk_widget_t * widget )

Toggle pointer grab.

Toggles the movement grab for a widget.

Parameters

widget The widget trying to grab the movement.

Returns: true if the grab was ok, false if the grab failed (already grabbed).

Definition at line 95 of file event.c.

References fbtk_get_root_widget(), and root.

Referenced by fb_browser_window_click(), fb_browser_window_move(), hscrollarea_click(), and vscrollarea_click().

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◆ fbtk_warp_pointer()

void fbtk_warp_pointer	(	fbtk_widget_t *	widget,
		int	x,
		int	y,
		bool	relative
	)

Move pointer.

Move the pointer cursor to a given location.

Parameters

widget	any tookit widget.
x	movement in horizontal plane.
y	movement in vertical plane.
relative	Wheter the /a x and /a y should be considered relative to current pointer position.

Definition at line 117 of file event.c.

References FBTK_CBT_POINTERENTER, FBTK_CBT_POINTERLEAVE, FBTK_CBT_POINTERMOVE, fbtk_get_absx(), fbtk_get_absy(), fbtk_get_root_widget(), fbtk_get_widget_at(), fbtk_post_callback(), fbtk_widget_s::height, root, and fbtk_widget_s::width.

Referenced by fbtk_event().

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◆ fbtk_writable_text()

void fbtk_writable_text	(	fbtk_widget_t *	widget,
		fbtk_enter_t	enter,
		void *	pw
	)

Alter a text widget to be writable.

Parameters

widget	Text widget.
enter	The routine to call when enter is pressed.
pw	The context to pass to the enter callback routine.

Definition at line 532 of file text.c.

References FBTK_CBT_INPUT, fbtk_set_handler(), fbtk_widget_s::text, text_input(), and fbtk_widget_s::u.

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◆ map_osk()

void map_osk ( void )

show the osk.

Definition at line 189 of file osk.c.

References fbtk_set_mapping(), fbtk_set_zorder(), and osk.

Referenced by fb_osk_click().

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Data Structures

Macros

Typedefs

Enumerations

Functions

Macro Definition Documentation

◆ FB_COLOUR_BLACK

◆ FB_COLOUR_WHITE

◆ FB_FRAME_COLOUR

◆ FB_SCROLL_COLOUR

◆ FBTK_DPI

◆ FBTK_WIDGET_PADDING

Typedef Documentation

◆ fbtk_callback

◆ fbtk_callback_info

◆ fbtk_callback_type

◆ fbtk_enter_t

◆ fbtk_modifier_type

◆ fbtk_widget_t

Enumeration Type Documentation

◆ fbtk_callback_type

◆ fbtk_modifier_type

Function Documentation

◆ fbtk_click()

◆ fbtk_clip_rect()

◆ fbtk_clip_to_widget()

◆ fbtk_create_bitmap()

◆ fbtk_create_button()

◆ fbtk_create_fill()

◆ fbtk_create_hscroll()

◆ fbtk_create_text()

◆ fbtk_create_text_button()

◆ fbtk_create_user()

◆ fbtk_create_vscroll()

◆ fbtk_create_window()

◆ fbtk_create_writable_text()

◆ fbtk_destroy_widget()

◆ fbtk_enable_oskb()

◆ fbtk_event()

◆ fbtk_get_absx()

◆ fbtk_get_absy()

◆ fbtk_get_bbox()

◆ fbtk_get_caret()

◆ fbtk_get_handler()

◆ fbtk_get_height()

◆ fbtk_get_nsfb()

◆ fbtk_get_redraw_pending()

◆ fbtk_get_userpw()

◆ fbtk_get_widget_at()

◆ fbtk_get_width()

◆ fbtk_init()

◆ fbtk_input()

◆ fbtk_keycode_to_ucs4()

◆ fbtk_post_callback()

◆ fbtk_redraw()

◆ fbtk_reposition_hscroll()

◆ fbtk_reposition_vscroll()

◆ fbtk_request_redraw()

◆ fbtk_set_bitmap()

◆ fbtk_set_caret()

◆ fbtk_set_focus()

◆ fbtk_set_handler()

◆ fbtk_set_mapping()

◆ fbtk_set_pos_and_size()

◆ fbtk_set_scroll_parameters()

◆ fbtk_set_scroll_position()

◆ fbtk_set_text()

◆ fbtk_set_zorder()

◆ fbtk_tgrab_pointer()

◆ fbtk_warp_pointer()

◆ fbtk_writable_text()

◆ map_osk()