125 lines
2.9 KiB
C
125 lines
2.9 KiB
C
#include <rtthread.h>
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#if defined(RT_USING_GUIENGINE) && defined(RTGUI_USING_DEMO)
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#include <rtgui/rtgui.h>
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#include <rtgui/rtgui_system.h>
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#include <rtgui/rtgui_app.h>
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#include <rtgui/image.h>
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#include <rtgui/widgets/window.h>
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#include <rtgui/dc.h>
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extern const static unsigned char _picture_png[];
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static rt_bool_t show_demo(struct rtgui_win *win)
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{
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struct rtgui_dc *dc;
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rtgui_rect_t rect;
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dc = rtgui_dc_begin_drawing(RTGUI_WIDGET(win));
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if (dc == RT_NULL)
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{
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rt_kprintf("dc is null \n");
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return RT_FALSE;
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}
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rtgui_dc_get_rect(dc, &rect);
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/* draw circular */
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{
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rt_int16_t x, y, r;
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x = rect.x2 / 2 / 2;
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y = rect.y2 / 2 / 2;
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r = x > y ? y : x;
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r -= y / 10;
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rtgui_dc_draw_circle(dc, x, y, r);
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}
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/* draw image */
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{
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rtgui_rect_t draw_rect;
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struct rtgui_image *img;
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img = rtgui_image_create_from_mem("png", _picture_png, sizeof(_picture_png), RT_TRUE);
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if (img != RT_NULL)
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{
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draw_rect.x1 = rect.x2 / 2 + (rect.x2 / 2 - img->w) / 2;
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draw_rect.y1 = (rect.y2 / 2 - img->h) / 2;
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draw_rect.x2 = draw_rect.x1 + img->w;
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draw_rect.y2 = draw_rect.y1 + img->h;
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rtgui_image_blit(img, dc, &draw_rect);
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}
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}
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/* draw text */
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{
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rtgui_color_t fc;
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rtgui_rect_t draw_rect;
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char *text_buf = "Hello RT-thread!";
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fc = RTGUI_DC_FC(dc);
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RTGUI_DC_FC(dc) = RED;
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draw_rect.x1 = rect.x2 * 2 / 5;
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draw_rect.y1 = rect.y2 * 3 / 4;
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draw_rect.x2 = rect.x2;
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draw_rect.y2 = rect.y2;
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rtgui_dc_draw_text(dc, text_buf, &draw_rect);
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RTGUI_DC_FC(dc) = fc;
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}
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rtgui_dc_end_drawing(dc, RT_TRUE);
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return RT_TRUE;
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}
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rt_bool_t dc_event_handler(struct rtgui_object *object, rtgui_event_t *event)
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{
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rt_bool_t err;
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struct rtgui_win *win = RTGUI_WIN(object);
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err = rtgui_win_event_handler(RTGUI_OBJECT(win), event);
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if (event->type == RTGUI_EVENT_PAINT)
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show_demo(win);
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return err;
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}
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static void rt_gui_demo_entry(void *parameter)
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{
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struct rtgui_win *main_win;
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struct rtgui_app *app;
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/* create gui app */
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app = rtgui_app_create("gui_demo");
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if (app == RT_NULL)
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return;
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main_win = rtgui_mainwin_create(RT_NULL, "UiWindow", RTGUI_WIN_STYLE_NO_TITLE);
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if (main_win == RT_NULL)
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{
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rtgui_app_destroy(app);
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return;
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}
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rtgui_object_set_event_handler(RTGUI_OBJECT(main_win), dc_event_handler);
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rtgui_win_show(main_win, RT_FALSE);
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rtgui_app_run(app);
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rtgui_win_destroy(main_win);
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rtgui_app_destroy(app);
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}
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int rt_gui_demo_init(void)
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{
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rt_thread_t tid;
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tid = rt_thread_create("mygui",
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rt_gui_demo_entry, RT_NULL,
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2048, 25, 10);
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if (tid != RT_NULL)
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rt_thread_startup(tid);
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return 0;
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}
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INIT_APP_EXPORT(rt_gui_demo_init);
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#endif /* RT_USING_RTGUI */ |