rt-thread/examples/gui/demo_view_ttf.c

/*
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>嵥<EFBFBD><EFBFBD>TTF<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD>ʾ
 *
 * <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӻ<EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>container<EFBFBD>Ͻ<EFBFBD><EFBFBD><EFBFBD>TTF<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ
 */

#include "demo_view.h"
#include <rtgui/dc.h>
#include <rtgui/font.h>
#include <rtgui/rtgui_system.h>

#ifdef RTGUI_USING_TTF
static rtgui_font_t *font_16, *font_24, *font_36, *font_48;

/*
 * container<EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
rt_bool_t ttf_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;
		rtgui_font_t* saved;

		/*
		 * <EFBFBD><EFBFBD>Ϊ<EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD>demo container<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 container
		 * <EFBFBD>Ȼ<EFBFBD>ͼ
		 */
		rtgui_container_event_handler(widget, event);

		/************************************************************************/
		/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DC<44>IJ<EFBFBD><C4B2><EFBFBD>                                                     */
		/************************************************************************/

		/* <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 container<65><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
		demo_view_get_rect(RTGUI_CONTAINER(widget), &rect);

		saved = RTGUI_WIDGET_FONT(widget);

		RTGUI_WIDGET_FONT(widget) = font_16;
		rtgui_dc_draw_text(dc, "ABCD<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &rect);
		rect.y1 += 18; 

		RTGUI_WIDGET_FONT(widget) = font_24;
		rtgui_dc_draw_text(dc, "ABCD<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &rect);
		rect.y1 += 26; 

		RTGUI_WIDGET_FONT(widget) = font_36;
		rtgui_dc_draw_text(dc, "ABCD<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &rect);
		rect.y1 += 38; 

		RTGUI_WIDGET_FONT(widget) = font_48;
		rtgui_dc_draw_text(dc, "ABCD<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", &rect);

		RTGUI_WIDGET_FONT(widget) = saved;
		/* <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(widget, event);
	}

	return RT_FALSE;
}

/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>TTF<54><46><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>ʾ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD>ͼ */
rtgui_container_t *demo_view_ttf()
{
	rtgui_container_t *container;

	font_16 = rtgui_freetype_font_create("d:/simsun.ttf", 0, 0, 16);
	font_24 = rtgui_freetype_font_create("d:/simsun.ttf", 0, 0, 24);
	font_36 = rtgui_freetype_font_create("d:/simsun.ttf", 0, 0, 36);
	font_48 = rtgui_freetype_font_create("d:/simsun.TTF", 0, 0, 72);

	container = demo_view("TTF <20><>ʾ");
	if (container != RT_NULL)
	{
		RTGUI_WIDGET_BACKGROUND(RTGUI_WIDGET(container)) = white;
		/* <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(container), ttf_event_handler);
	}

	return container;
}
#endif