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rt-thread
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add ttf and xml example. 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@757 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
bernard.xiong 2010-06-01 07:54:34 +00:00
parent 3a13964efa
commit d4150036b8
3 changed files with 127 additions and 0 deletions
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98
examples/gui/demo_view_ttf.c Normal file
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@ -0,0 +1,98 @@
/*
* 程序清单：TTF字体显示演示
*
* 这个例子会在创建出的view上进行TTF字体显示的演示
*/
#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;
/*
* view的事件处理函数
*/
rt_bool_t ttf_event_handler(rtgui_widget_t* widget, rtgui_event_t *event)
{
/* 仅对PAINT事件进行处理 */
if (event->type == RTGUI_EVENT_PAINT)
{
struct rtgui_dc* dc;
rtgui_rect_t rect;
rtgui_font_t* saved;
/*
* 因为用的是demo view，上面本身有一部分控件，所以在绘图时先要让demo view
* 先绘图
*/
rtgui_view_event_handler(widget, event);
/************************************************************************/
/* 下面的是DC的操作 */
/************************************************************************/
/* 获得控件所属的DC */
dc = rtgui_dc_begin_drawing(widget);
/* 如果不能正常获得DC，返回（如果控件或父控件是隐藏状态，DC是获取不成功的） */
if (dc == RT_NULL)
return RT_FALSE;
/* 获得demo view允许绘图的区域 */
demo_view_get_rect(RTGUI_VIEW(widget), &rect);
saved = RTGUI_WIDGET_FONT(widget);
RTGUI_WIDGET_FONT(widget) = font_16;
rtgui_dc_draw_text(dc, "ABCD", &rect);
rect.y1 += 18;
RTGUI_WIDGET_FONT(widget) = font_24;
rtgui_dc_draw_text(dc, "ABCD", &rect);
rect.y1 += 26;
RTGUI_WIDGET_FONT(widget) = font_36;
rtgui_dc_draw_text(dc, "ABCD", &rect);
rect.y1 += 38;
RTGUI_WIDGET_FONT(widget) = font_48;
rtgui_dc_draw_text(dc, "ABCD", &rect);
RTGUI_WIDGET_FONT(widget) = saved;
/* 绘图完成 */
rtgui_dc_end_drawing(dc);
}
else
{
/* 其他事件，调用默认的事件处理函数 */
return rtgui_view_event_handler(widget, event);
}
return RT_FALSE;
}
extern rtgui_font_t* rtgui_freetype_font_create(const char* filename, int bold, int italic, rt_size_t size);
/* 创建用于TTF字体显示演示用的视图 */
rtgui_view_t *demo_view_ttf(rtgui_workbench_t* workbench)
{
rtgui_view_t *view;
font_16 = rtgui_freetype_font_create("d:/arial.ttf", 0, 0, 16);
font_24 = rtgui_freetype_font_create("d:/arial.ttf", 0, 0, 24);
font_36 = rtgui_freetype_font_create("d:/arial.ttf", 0, 0, 36);
font_48 = rtgui_freetype_font_create("d:/HARNGTON.TTF", 0, 0, 72);
view = demo_view(workbench, "TTF 演示");
if (view != RT_NULL)
{
// RTGUI_WIDGET_BACKGROUND(RTGUI_WIDGET(view)) = white;
/* 设置成自己的事件处理函数 */
rtgui_widget_set_event_handler(RTGUI_WIDGET(view), ttf_event_handler);
}
return view;
}
#endif

3
examples/gui/demo_workbench.c
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@ -52,6 +52,9 @@ static void workbench_entry(void* parameter)
/* 初始化各个例子的视图 */
demo_view_dc(workbench);
#ifdef RTGUI_USING_TTF
demo_view_ttf(workbench);
#endif
demo_view_dc_buffer(workbench);
demo_view_animation(workbench);
demo_view_buffer_animation(workbench);

26
examples/gui/demo_xml.c Normal file
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@ -0,0 +1,26 @@
#include <rtthread.h>
#include <rtgui/rtgui_xml.h>
static int xml_event_handler(rt_uint8_t event, const char* text, rt_size_t len, void* user)
{
rt_kprintf("%s: %s\n", rtgui_xml_event_str(event), text);
return 1;
}
const char xml_str[] = "<?xml version=\"1.0\"?><note><to>Tove</to><from>Jani</from><heading>Reminder</heading><body>Don't forget me this weekend!</body></note>";
void demo_xml()
{
rtgui_xml_t *xml;
xml = rtgui_xml_create(512, xml_event_handler, RT_NULL);
if (xml != RT_NULL)
{
rtgui_xml_parse(xml, xml_str, sizeof(xml_str));
rtgui_xml_destroy(xml);
}
}
#ifdef RT_USING_FINSH
#include <finsh.h>
FINSH_FUNCTION_EXPORT(demo_xml, show the demo of xml parser);
#endif