dc画图图出现硬件错误是什么原因导致的？

发布于 2013-03-17 22:01:20 浏览：1998 订阅该版

4 个回答

grissiom 2013-03-17

这家伙很懒，什么也没写！

王周旺 2013-03-17

这家伙很懒，什么也没写！

win的不是
现在已经可以画线了但是有时候一个填充矩形只画一半 有点像画矩形的时候被中断了然后数据就乱了那种情况
代码如下

```

#include <rtthread.h>
#include "app.h"

/*rtgui_dc绘制基本图形函数*/	
static void dc_draw(struct rtgui_widget *widget);
/*主窗口事件函数*/
static rt_bool_t event_handler(struct rtgui_object *object, rtgui_event_t *event);

/** 
  * @函数名称：event_handler()
  * @描述    ：  主窗口事件服务函数
  * @参数    ：  *object: 事件对象指针,*event:事件类型指针
  * @返回值  ： rt_bool_t.
  */
static rt_bool_t event_handler(struct rtgui_object *object, rtgui_event_t *event)
{    
	/*将object转换成widget*/
    struct rtgui_widget *widget = RTGUI_WIDGET(object);
	/*输出调试信息*/
    rt_kprintf("event_handler
");
	
    if(event->type == RTGUI_EVENT_PAINT)         //事件类型为RTGUI_EVENT_PAINT
    {   
		/*输出调试信息*/
        rt_kprintf("RTGUI_EVENT_PAINT
");
		/*执行窗体事件*/
        rtgui_win_event_handler((struct rtgui_object*)object, event);
		/*调用绘制函数绘制图形*/
		dc_draw(widget);
    }
    else if (event->type == RTGUI_EVENT_SHOW)    //事件类型为RTGUI_EVENT_SHOW
	{  
		/*输出调试信息*/
        rt_kprintf("RTGUI_EVENT_SHOW
");
        rtgui_win_event_handler((struct rtgui_object*)object, event);
		
    }
    else if (event->type == RTGUI_EVENT_HIDE)  //事件类型为RTGUI_EVENT_HIDE
    {    
		/*输出调试信息*/
        rt_kprintf("RTGUI_EVENT_HIDE
");
        rtgui_win_event_handler((struct rtgui_object*)object, event);
    }
    else if (event->type == RTGUI_EVENT_WIN_DEACTIVATE) //事件类型为RTGUI_EVENT_WIN_DEACTIVATE
    {   
		/*输出调试信息*/
        rt_kprintf("RTGUI_EVENT_WIN_DEACTIVATE
");
        rtgui_win_event_handler((struct rtgui_object*)object, event);
    }
    else if (event->type == RTGUI_EVENT_KBD)   //事件类型为RTGUI_EVENT_KBD
    {
        rtgui_win_event_handler((struct rtgui_object*)object, event);
    }
   else                                       //不在范围内的事件
    {
        rt_kprintf("event->type:%d
", event->type);
        return rtgui_win_event_handler((struct rtgui_object*)object, event);
    }
    return RT_FALSE;
}

/** 
  * @函数名称：  dc_draw()
  * @描述    ：  dc绘图函数，本例子的核心
  * @参数    ：  *widget RTGUi部件指针
  * @返回值  ：  None.
  */
static void dc_draw(struct rtgui_widget *widget)
{       
	    /*局部变量*/
	     struct rtgui_dc *dc;
		 rtgui_color_t tcolor ;
	     rtgui_rect_t rect={100,100,150,200};
		 
	    /*获得窗体的dc*/
        dc=rtgui_dc_begin_drawing(widget);
		/*存放当前DC的前景色*/
		tcolor=RTGUI_DC_FC(dc);
		/*设置前景色*/
	    RTGUI_DC_FC(dc)=RTGUI_RGB(0,0,200);
		/*绘制圆角矩形*/
		rtgui_dc_draw_round_rect(dc,&rect,5);
		/*绘制一条直线*/
		rtgui_dc_draw_line(dc,0,0,300,240);
		/*设置前景色*/
		RTGUI_DC_FC(dc) = RTGUI_RGB(200,0,0);
		/*绘制椭圆*/
		//rtgui_dc_draw_ellipse(dc,100,100,50,80);
		/*设置前景色*/
		RTGUI_DC_FC(dc) = RTGUI_RGB(200,0xff,0);
		/*绘制填充圆*/
		rtgui_dc_fill_circle(dc,100,100,50);
		/*设置前景色*/
		RTGUI_DC_FC(dc) = RTGUI_RGB(200,0x00,0xff);
		/*设置矩形*/
		rect.x1=10;
		rect.y1=100;
		rect.x2=rect.x1+100;
		rect.y2=rect.y1+50;
		/*绘制填充矩形*/
		rtgui_dc_fill_rect(dc,&rect);
		/*设置矩形*/
		rect.x1=10;
		rect.y1=10;
		rect.x2=rect.x1+200;
		rect.y2=rect.y1+20;
		/*设置前景色*/
		RTGUI_DC_FC(dc) = RTGUI_RGB(200,0x00,0x00);
		/*绘制文本*/
		rtgui_dc_draw_text(dc,"12345,hello",&rect);
		/*将原来的前景色设置回去*/
		RTGUI_DC_FC(dc) =tcolor;
		/*结束dc绘图*/
		rtgui_dc_end_drawing(dc);
		rt_kprintf("end
");
		
}

void button1_deal(struct rtgui_object* object, struct rtgui_event* event)
{
	struct rtgui_win *win1;
	struct rtgui_label *label1;
	
	rtgui_rect_t rect = {0,20,300,240};

win1 = rtgui_win_create(RT_NULL,"button1",&rect,RTGUI_WIN_STYLE_DESTROY_ON_CLOSE|RTGUI_WIN_STYLE_CLOSEBOX);
	label1 = rtgui_label_create("");
	rect.x1 = 50,rect.y1 = 100;
	rect.x2 = 300,rect.y2 = 150;
	RTGUI_WIDGET_BACKGROUND(label1) = red;
	RTGUI_WIDGET_FOREGROUND(label1) = green;
	rtgui_label_set_text(label1,"asdfghjkl
dfsaf王周旺");
	RTGUI_WIDGET_FONT(label1) = rtgui_font_refer("hz",32);
	rtgui_widget_set_rect(RTGUI_WIDGET(label1),&rect);
	rtgui_container_add_child(RTGUI_CONTAINER(win1),RTGUI_WIDGET(label1));

rtgui_win_show(win1,RT_FALSE);
}
void button2_deal(struct rtgui_object* object, struct rtgui_event* event)
{
	struct rtgui_win *win1;
	struct rtgui_dc *dc;
	rtgui_color_t color;
	rtgui_rect_t rect = {0,20,320,240};

win1 = rtgui_win_create(RT_NULL,"l",&rect,RTGUI_WIN_STYLE_DESTROY_ON_CLOSE|RTGUI_WIN_STYLE_CLOSEBOX);

rtgui_object_set_event_handler(RTGUI_OBJECT(win1), event_handler);
	
	rtgui_win_show(win1,RT_FALSE);
}
void button3_deal(struct rtgui_object* object, struct rtgui_event* event)
{

}
void button4_deal(struct rtgui_object* object, struct rtgui_event* event)
{

}
void button5_deal(struct rtgui_object* object, struct rtgui_event* event)
{

}
void button6_deal(struct rtgui_object* object, struct rtgui_event* event)
{
		
}
static void app_lcd(void *parameter)
{
	struct rtgui_app *app1;
	struct rtgui_win *win1;
	struct rtgui_button *button1,*button2,*button3,*button4,*button5,*button6;
    rtgui_image_t *imge1,*imge2,*imge3,*imge4,*imge5,*imge6;
	rtgui_rect_t rect = {0,0,320,240};

app1 = rtgui_app_create("ICO_app");
	win1 = rtgui_win_create(RT_NULL,"ICO_WINDOS",&rect,RTGUI_WIN_STYLE_NO_BORDER|RTGUI_WIN_STYLE_NO_TITLE);
	RTGUI_WIDGET_BACKGROUND(win1) = black;

imge1 = rtgui_image_create_from_file("bmp","/aa/light.bmp",RT_FALSE);
	imge2 = rtgui_image_create_from_file("bmp","/aa/alarm.bmp",RT_FALSE);
	imge3 = rtgui_image_create_from_file("bmp","/aa/picture.bmp",RT_FALSE);
	imge4 = rtgui_image_create_from_file("bmp","/aa/txt.bmp",RT_FALSE);
	imge5 = rtgui_image_create_from_file("bmp","/aa/setting.bmp",RT_FALSE);
	imge6 = rtgui_image_create_from_file("bmp","/aa/time.bmp",RT_FALSE);
	
	button1 = rtgui_button_create("");
	button2 = rtgui_button_create("");
	button3 = rtgui_button_create("");
	button4 = rtgui_button_create("");
	button5 = rtgui_button_create("");
	button6 = rtgui_button_create("");
	
	rect.x1 = 40; rect.y1 = 40;
	rect.x2 = 100;rect.y2 = 100;
	rtgui_widget_set_rect(RTGUI_WIDGET(button1),&rect);
	rect.x1 += 90; rect.y1 = 40;
	rect.x2 += 90;rect.y2 = 100;
	rtgui_widget_set_rect(RTGUI_WIDGET(button2),&rect);
	rect.x1 += 90; rect.y1 = 40;
	rect.x2 += 90;rect.y2 = 100;
	rtgui_widget_set_rect(RTGUI_WIDGET(button3),&rect);
	rect.x1 = 40; rect.y1 = 150;
	rect.x2 = 100;rect.y2 = 210;
	rtgui_widget_set_rect(RTGUI_WIDGET(button4),&rect);
	rect.x1 += 90; rect.y1 = 150;
	rect.x2 += 90;rect.y2 = 210;
	rtgui_widget_set_rect(RTGUI_WIDGET(button5),&rect);
	rect.x1 += 90; rect.y1 = 150;
	rect.x2 += 90;rect.y2 = 210;
	rtgui_widget_set_rect(RTGUI_WIDGET(button6),&rect);
	
	
	rtgui_button_set_unpressed_image(button1,imge1);
	rtgui_button_set_unpressed_image(button2,imge2);
	rtgui_button_set_unpressed_image(button3,imge3);
	rtgui_button_set_unpressed_image(button4,imge4);
	rtgui_button_set_unpressed_image(button5,imge5);
	rtgui_button_set_unpressed_image(button6,imge6);

rtgui_button_set_onbutton(button1,button1_deal);
	rtgui_button_set_onbutton(button2,button2_deal);
	rtgui_button_set_onbutton(button3,button3_deal);
	rtgui_button_set_onbutton(button4,button4_deal);
	rtgui_button_set_onbutton(button5,button5_deal);
	rtgui_button_set_onbutton(button6,button6_deal);
	
	rtgui_container_add_child(RTGUI_CONTAINER(win1),RTGUI_WIDGET(button1));
	rtgui_container_add_child(RTGUI_CONTAINER(win1),RTGUI_WIDGET(button2));
	rtgui_container_add_child(RTGUI_CONTAINER(win1),RTGUI_WIDGET(button3));
	rtgui_container_add_child(RTGUI_CONTAINER(win1),RTGUI_WIDGET(button4));
	rtgui_container_add_child(RTGUI_CONTAINER(win1),RTGUI_WIDGET(button5));
	rtgui_container_add_child(RTGUI_CONTAINER(win1),RTGUI_WIDGET(button6));
	
	
	rtgui_win_show(win1,RT_FALSE);
	rtgui_app_run(app1);
	
	rtgui_app_destroy(app1);
	
}

void rt_app_init(void)
{
	rt_thread_t init_thread;

#if (RT_THREAD_PRIORITY_MAX == 32)
	init_thread = rt_thread_create("init",
								app_lcd, RT_NULL,
								2048, 20, 20);
#else
	init_thread = rt_thread_create("init",
								app_lcd, RT_NULL,
								2048, 80, 20);
#endif

if (init_thread != RT_NULL)
		rt_thread_startup(init_thread);
}

```