mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-29 15:29:42 +03:00
200 lines
6.2 KiB
C
200 lines
6.2 KiB
C
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#define FB_FRAME_COLOUR 0xFFDDDDDD
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#define FB_COLOUR_BLACK 0xFF000000
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#define FB_COLOUR_WHITE 0xFFFFFFFF
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typedef struct fbtk_widget_s fbtk_widget_t;
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/* user widget callback */
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typedef int (*fbtk_user_t)(fbtk_widget_t *widget, void *pw);
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/* input callback */
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typedef int (*fbtk_input_t)(fbtk_widget_t *widget, int value, void *pw);
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/* mouse click callback */
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typedef int (*fbtk_mouseclick_t)(fbtk_widget_t *widget, browser_mouse_state st, int x, int y, void *pw);
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/* mouse move callback */
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typedef int (*fbtk_move_t)(fbtk_widget_t *widget, int x, int y, void *pw);
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/* redraw function */
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typedef int (*fbtk_redraw_t)(fbtk_widget_t *widget, void *pw);
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/* enter pressed on writable icon */
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typedef int (*fbtk_enter_t)(void *pw, char *text);
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/* Widget creation */
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/** Initialise widget toolkit.
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*
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* Initialises widget toolkit and creates root window against a framebuffer.
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*
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* @param fb The underlying framebuffer.
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* @return The root widget handle.
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*/
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fbtk_widget_t *fbtk_init(framebuffer_t *fb);
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/** Create a window widget.
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*
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* @param parent The parent window or the root widget for a top level window.
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* @param x The x location relative to the parent window.
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* @param y the y location relative to the parent window.
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* @param width The width of the window. 0 indicates parents width should be
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* used. Negative value indicates parents width less the value
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* should be used. The width is limited to lie within the parent
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* window.
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* @param height The height of the window limited in a similar way to the
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* /a width.
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* @param c The background colour.
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* @return new window widget handle or NULL on error.
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*/
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fbtk_widget_t *fbtk_create_window(fbtk_widget_t *parent, int x, int y, int width, int height);
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/** Create a text widget.
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*
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* @param window The window to add the text widget to.
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* @return new widget handle or NULL on error.
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*/
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fbtk_widget_t *fbtk_create_text(fbtk_widget_t *window, int x, int y, int width, int height, colour bg, colour fg, bool outline);
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/** Create a bitmap widget.
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*
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* Create a widget which shows a bitmap.
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*
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* @param window The window to add the bitmap widget to.
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* @return new widget handle or NULL on error.
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*/
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fbtk_widget_t *fbtk_create_bitmap(fbtk_widget_t *window, int x, int y, colour c,struct bitmap *image);
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/** Create a filled rectangle
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*
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* Create a widget which is a filled rectangle, usually used for backgrounds.
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*
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* @param window The window to add the filled area widget to.
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* @return new widget handle or NULL on error.
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*/
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fbtk_widget_t *
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fbtk_create_fill(fbtk_widget_t *window, int x, int y, int width, int height, colour c);
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/** Create a horizontal scroll widget
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*
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* Create a horizontal scroll widget.
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*
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* @param window The window to add the filled area widget to.
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* @return new widget handle or NULL on error.
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*/
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fbtk_widget_t *
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fbtk_create_hscroll(fbtk_widget_t *window, int x, int y, int width, int height, colour fg, colour bg);
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/** Create a user widget.
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*
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* Create a widget which is to be handled entirely by the calling application.
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*
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* @param window The window to add the user widget to.
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* @param pw The private pointer which can be read using ::fbtk_get_pw
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* @return new widget handle or NULL on error.
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*/
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fbtk_widget_t *fbtk_create_user(fbtk_widget_t *window, int x, int y, int width, int height, void *pw);
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/** Create a button widget.
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*
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* Helper function which creates a bitmap widget and associate a handler for
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* when it is clicked.
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*
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* @param window The window to add the button widget to.
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* @return new widget handle or NULL on error.
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*/
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fbtk_widget_t *fbtk_create_button(fbtk_widget_t *window, int x, int y, colour c, struct bitmap *image, fbtk_mouseclick_t click, void *pw);
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/** Create a writable text widget.
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*
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* Helper function which creates a text widget and configures an input handler
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* to create a writable text field. This call is equivalent to calling
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* ::fbtk_create_text followed by ::fbtk_writable_text
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*
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* @param window The window to add the text widget to.
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* @return new widget handle or NULL on error.
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*/
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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);
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/* Widget Destruction */
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/** Destroy and free a widget and all its children.
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*
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* @param widget The widget to destroy.
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* @return 0 on success or -1 on error.
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*/
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int fbtk_destroy_widget(fbtk_widget_t *widget);
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/* Widget information */
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int fbtk_get_y(fbtk_widget_t *widget);
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int fbtk_get_x(fbtk_widget_t *widget);
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int fbtk_get_width(fbtk_widget_t *widget);
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int fbtk_get_height(fbtk_widget_t *widget);
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void *fbtk_get_userpw(fbtk_widget_t *widget);
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/* Set widget properties */
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void fbtk_set_text(fbtk_widget_t *widget, const char *text);
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void fbtk_set_bitmap(fbtk_widget_t *widget, struct bitmap *image);
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void fbtk_set_scroll(fbtk_widget_t *widget, int pct);
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void fbtk_set_scroll_pos(fbtk_widget_t *widget, int pos);
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void fbtk_set_pos_and_size(fbtk_widget_t *widget, int x, int y, int width, int height);
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void fbtk_set_handler_redraw(fbtk_widget_t *widget, fbtk_redraw_t input, void *pw);
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void fbtk_set_handler_input(fbtk_widget_t *widget, fbtk_input_t input, void *pw);
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void fbtk_set_handler_click(fbtk_widget_t *widget, fbtk_mouseclick_t click, void *pw);
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void fbtk_set_handler_move(fbtk_widget_t *widget, fbtk_move_t move, void *pw);
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/** Alter a text widget to be writable.
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*/
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void fbtk_writable_text(fbtk_widget_t *widget, fbtk_enter_t enter, void *pw);
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/* General routines */
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/** Pointer movement.
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*
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* Pointer has been moved.
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*
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* @param widget any tookit widget.
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* @parm x movement in horizontal plane.
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* @parm y movement in vertical plane.
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* @parm relative Wether the /a x and /a y should be considered relative to
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* current pointer position.
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*/
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void fbtk_move_pointer(fbtk_widget_t *widget, int x, int y, bool relative);
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/** Mouse has been clicked
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*/
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void fbtk_click(fbtk_widget_t *widget, browser_mouse_state st);
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/** Input has been recived
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*/
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void fbtk_input(fbtk_widget_t *widget, uint32_t ucs4);
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/** Indicate a widget has to be redrawn
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*/
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void fbtk_request_redraw(fbtk_widget_t *widget);
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/** Cause a redraw to happen.
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*/
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int fbtk_redraw(fbtk_widget_t *widget);
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int fbtk_count_children(fbtk_widget_t *widget);
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