WebSVN – Kolibri OS – Blame – /contrib/C_Layer/INCLUDE/kolibri_gui.h

Rev	Author	Line No.	Line
6391	ashmew2	1	#ifndef KOLIBRI_GUI_H
		2	#define KOLIBRI_GUI_H
		3
		4	#include "stdlib.h" /* for malloc() */
		5	#include
		6
		7	#include "kolibri_debug.h" /* work with debug board */
		8
		9	/* boxlib loader */
		10	#include "kolibri_boxlib.h"
		11
		12	/* All supported GUI elements included */
		13	#include "kolibri_gui_elements.h"
		14
		15	enum KOLIBRI_GUI_EVENTS {
		16	KOLIBRI_EVENT_REDRAW = 1, /* Window and window elements should be redrawn */
		17	KOLIBRI_EVENT_KEY = 2, /* A key on the keyboard was pressed */
		18	KOLIBRI_EVENT_BUTTON = 3, /* A button was clicked with the mouse */
		19	KOLIBRI_EVENT_MOUSE = 6 /* Mouse activity (movement, button press) was detected */
		20	};
		21
		22	void kolibri_handle_event_redraw(struct kolibri_window* some_window)
		23	{
		24	/* Draw windows with system color table. */
		25
		26	BeginDraw();
		27
		28	DrawWindow(some_window->topleftx, some_window->toplefty,
		29	some_window->sizex, some_window->sizey,
		30	some_window->window_title,
		31	kolibri_color_table.color_work_area, some_window->XY);
		32
		33	/* Enumerate and draw all window elements here */
		34	if(some_window->elements) /* Draw all elements added to window */
		35	{
		36	struct kolibri_window_element* current_element = some_window -> elements;
		37
		38	do
		39	{
		40	/* The redraw_fn serves as draw_fn on initial draw */
		41	if(kolibri_gui_op_table[current_element -> type].redraw_fn)
		42	kolibri_gui_op_table[current_element -> type].redraw_fn(current_element -> element);
		43
		44	switch(current_element -> type)
		45	{
		46	case KOLIBRI_EDIT_BOX:
		47	case KOLIBRI_CHECK_BOX:
		48	__asm__ volatile("push $0x13371337"::); /* Random value pushed to balance stack */
		49	/* otherwise edit_box_draw leaves stack unbalanced */
		50	/* and GCC jumps like a crazy motha' fucka' */
		51	break;
		52	}
		53
		54	current_element = current_element -> next;
		55
		56	} while(current_element != some_window->elements); /* Have we covered all elements? */
		57	}
		58	}
		59
		60	void kolibri_handle_event_key(struct kolibri_window* some_window)
		61	{
		62	/* Enumerate and trigger key handling functions of window elements here */
		63	if(some_window->elements)
		64	{
		65	struct kolibri_window_element *current_element = some_window -> elements;
		66
		67	do
		68	{
		69	/* Only execute if the function pointer isn't NULL */
		70	if(kolibri_gui_op_table[current_element -> type].key_fn)
		71	kolibri_gui_op_table[current_element -> type].key_fn(current_element -> element);
		72
		73	current_element = current_element -> next;
		74	} while(current_element != some_window->elements); /* Have we covered all elements? */
		75	}
		76	}
		77
		78	void kolibri_handle_event_mouse(struct kolibri_window* some_window)
		79	{
		80	/* Enumerate and trigger mouse handling functions of window elements here */
		81	if(some_window->elements)
		82	{
		83	struct kolibri_window_element *current_element = some_window -> elements;
		84
		85	do
		86	{
		87
		88	if(kolibri_gui_op_table[current_element -> type].mouse_fn)
		89	kolibri_gui_op_table[current_element -> type].mouse_fn(current_element -> element);
		90
		91	current_element = current_element -> next;
		92	} while(current_element != some_window->elements); /* Have we covered all elements? */
		93	}
		94	}
		95
		96	void kolibri_exit(void)
		97	{
		98	__asm__ volatile ("int $0x40"::"a"(-1));
		99	}
		100
		101	int kolibri_gui_init(void)
		102	{
		103	int boxlib_init_status = kolibri_boxlib_init();
		104
		105	if(boxlib_init_status == 0)
		106	debug_board_write_str("ashmew2 is happy: Kolibri GUI Successfully Initialized.\n");
		107	else
		108	{
		109	debug_board_write_str("ashmew2 is sad: Kolibri GUI Failed to initialize.\n");
		110	kolibri_exit();
		111	}
		112
		113	/* Initialize the global operation table which handles event functions of */
		114	/* each individual element type */
		115	kolibri_init_gui_op_table();
		116
		117	/* Get the current color table for Kolibri and store in global table*/
		118	kolibri_get_system_colors(&kolibri_color_table);
		119
		120	/* Set up system events for buttons, mouse and keyboard and redraw */
		121	/* Also set filters so that window receives mouse events only when active
		122	and mouse inside window */
		123	__asm__ volatile("int $0x40"::"a"(40), "b"(0xC0000027));
		124	}
		125
		126	/* Note: The current implementation tries to automatically colors
		127	GUI elements with system theme */
		128
		129	#endif /* KOLIBRI_GUI_H */

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(root)/contrib/C_Layer/INCLUDE/kolibri_gui.h @ 6479 – Rev 6391