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rt-thread-official/examples/gui/demo_view_dc_buffer.c

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merge new RTGUI in to trunk The full log is at https://github.com/RTGUI/RTGUI/commits/merge_1 and it's difficult to merge the new tree commit by commit. I also converted all the file into unix eol so there are many fake diff. Big changes are noted in rtgui/doc/road_map.txt and rtgui/doc/attention.txt. Keep an eye on them if you want to migrate your old code. Note that the work is still in progress and the bsp is not prepared in trunk so far. git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2092 bbd45198-f89e-11dd-88c7-29a3b14d5316
2012-04-18 23:06:12 +08:00
/*
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>嵥<EFBFBD><EFBFBD>DC Buffer<EFBFBD><EFBFBD>ʾ
*
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӻ<EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>view<EFBFBD>Ͻ<EFBFBD><EFBFBD><EFBFBD>DC Buffer<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ
*/
#include "demo_view.h"
#include <rtgui/rtgui_system.h>
#include <rtgui/widgets/label.h>
#include <rtgui/widgets/slider.h>
#include <rtgui/image.h>
static rtgui_image_t *background;
static struct rtgui_dc *dc_buffer;
/*
* view<EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
static rt_bool_t dc_buffer_event_handler(struct rtgui_object* object, rtgui_event_t *event)
{
struct rtgui_widget *widget = RTGUI_WIDGET(object);
/* <20><><EFBFBD><EFBFBD>PAINT<4E>¼<EFBFBD><C2BC><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD> */
if (event->type == RTGUI_EVENT_PAINT)
{
struct rtgui_dc* dc;
rtgui_rect_t rect;
/*
* <EFBFBD><EFBFBD>Ϊ<EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD>demo view<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>汾<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ֿؼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڻ<EFBFBD>ͼʱ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>demo view
* <EFBFBD>Ȼ<EFBFBD>ͼ
*/
rtgui_container_event_handler(object, event);
/* <20><><EFBFBD>ÿؼ<C3BF><D8BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DC */
dc = rtgui_dc_begin_drawing(widget);
/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DC<44><43><EFBFBD><EFBFBD><EFBFBD>أ<EFBFBD><D8A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؼ<EFBFBD><D8BC>򸸿ؼ<F2B8B8BF><D8BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4><CCAC>DC<44>ǻ<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD>ɹ<EFBFBD><C9B9>ģ<EFBFBD> */
if (dc == RT_NULL)
return RT_FALSE;
/* <20><><EFBFBD><EFBFBD>demo view<65><77><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
demo_view_get_logic_rect(RTGUI_CONTAINER(widget), &rect);
rect.x1 += 10;
rect.y1 += 10;
rtgui_dc_blit(dc_buffer, NULL, dc, &rect);
/* <20><>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD> */
rtgui_dc_end_drawing(dc);
}
else
{
/* <20><><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD>ϵ<EFBFBD><CFB5>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
return rtgui_container_event_handler(object, event);
}
return RT_FALSE;
}
/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DC Buffer<65><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD>ͼ */
rtgui_container_t *demo_view_dc_buffer()
{
rtgui_container_t *view;
if (dc_buffer == RT_NULL)
{
rtgui_rect_t rect = {0, 0, 50, 50};
/* <20><><EFBFBD><EFBFBD> DC Buffer<65><72><EFBFBD><EFBFBD> 50<35><30><EFBFBD><EFBFBD> 50 */
dc_buffer = rtgui_dc_buffer_create(50, 50);
RTGUI_DC_FC(dc_buffer) = blue;
rtgui_dc_fill_rect(dc_buffer, &rect);
RTGUI_DC_FC(dc_buffer) = red;
rtgui_dc_draw_circle(dc_buffer, 25, 25, 10);
}
view = demo_view("<EFBFBD><EFBFBD><EFBFBD><EFBFBD>DC<EFBFBD><EFBFBD>ʾ");
if (view != RT_NULL)
/* <20><><EFBFBD>ó<EFBFBD><C3B3>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
rtgui_object_set_event_handler(RTGUI_OBJECT(view), dc_buffer_event_handler);
return view;
}