rtgui_demo.c

/*
 * File      : application.c
 * This file is part of RT-Thread RTOS
 * COPYRIGHT (C) 2006, RT-Thread Development Team
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://www.rt-thread.org/license/LICENSE
 *
 * Change Logs:
 * Date           Author       Notes
 */

#include <rtthread.h>
#include <finsh.h>
#include "rtgui_demo.h"

#define DEBUG

#ifdef DEBUG
#define DEBUG_PRINTF(...)   rt_kprintf(__VA_ARGS__)
#else
#define DEBUG_PRINTF(...)   
#endif

#ifdef RT_USING_GUIENGINE

#include <rtgui/rtgui.h>
#include <rtgui/rtgui_system.h>
#include <rtgui/rtgui_app.h>

#include <rtgui/widgets/window.h>
#include <rtgui/dc.h>
#include <rtgui/dc_hw.h>

struct rtgui_win *main_win;
rt_bool_t dc_event_handler(struct rtgui_object *object, rtgui_event_t *event);

static void rt_gui_demo_entry(void *parameter)
{    
    struct rtgui_app *app;
	//struct rtgui_dc *dc;
    
    DEBUG_PRINTF("gui demo entry\n");
	
	/* create gui app */
    app = rtgui_app_create("gui_demo");
    if (app == RT_NULL)
    {
        DEBUG_PRINTF("rtgui_app_create faild\n");
        return;	
    }
    
	/* create main window */
	main_win = rtgui_mainwin_create(RT_NULL, 
									"UiWindow", RTGUI_WIN_STYLE_NO_TITLE | RTGUI_WIN_STYLE_NO_BORDER);
    if (main_win == RT_NULL)
    {
        DEBUG_PRINTF("main_win is null\n");
        rtgui_app_destroy(app);
        return;
    }
	
	rtgui_object_set_event_handler(RTGUI_OBJECT(main_win), dc_event_handler);
	
    DEBUG_PRINTF("rtgui_win_show\n");
	rtgui_win_show(main_win, RT_FALSE);
    
    DEBUG_PRINTF("rtgui_app_run\n");
	rtgui_app_run(app);
    
    DEBUG_PRINTF("rtgui_win_destroy\n");
	rtgui_win_destroy(main_win);
    
    DEBUG_PRINTF("rtgui_app_destroy\n");
	rtgui_app_destroy(app);	
}

rt_bool_t dc_event_handler(struct rtgui_object *object, rtgui_event_t *event)
{
    struct rtgui_widget *widget = RTGUI_WIDGET(object);

    if (event->type == RTGUI_EVENT_PAINT)
    {
        struct rtgui_dc *dc;
        rtgui_rect_t rect;
		
		rt_kprintf("\r\n RTGUI_EVENT_PAINT \r\n");
		rtgui_win_event_handler(RTGUI_OBJECT(widget), event);
        
        rtgui_widget_get_rect(widget, &rect);
        DEBUG_PRINTF("widget react x1: %d, y1: %d, x2: %d, y2: %d\r\n",
                                rect.x1, rect.y1, rect.x2, rect.y2);

		dc = rtgui_dc_begin_drawing(widget);
		if(dc == RT_NULL)
		{
			DEBUG_PRINTF("\r\n dc is null \r\n");
			return RT_FALSE;
		}

		rtgui_dc_draw_line(dc, rect.x1, rect.y1, rect.x2, rect.y2);
		rtgui_dc_draw_line(dc, rect.x1, rect.y2, rect.x2, rect.y1);
        
        rect.x1 += (rect.x2 - rect.x1) / 2;
        rect.y1 += (rect.y2 - rect.y1) / 2;
        rtgui_dc_draw_text_stroke(dc, __DATE__"--"__TIME__, &rect, HIGH_LIGHT, BLUE);
        
        
		rtgui_dc_end_drawing(dc);
    }
	return RT_FALSE;
}

int rt_gui_demo_init(void)
{
    rt_thread_t tid;
    tid = rt_thread_create("mygui",
        rt_gui_demo_entry, RT_NULL,
        2048, 25, 10);

    if (tid != RT_NULL)
        rt_thread_startup(tid);
    
    return 0;
}
#endif /* RT_USING_GUIENGINE */