From 36343a56186ba213ef7bcc3e36992b8c0abd853f Mon Sep 17 00:00:00 2001 From: "bernard.xiong" Date: Sat, 6 Feb 2010 15:45:42 +0000 Subject: [PATCH] add animation demo. git-svn-id: https://rt-thread.googlecode.com/svn/trunk@378 bbd45198-f89e-11dd-88c7-29a3b14d5316 --- examples/gui/demo_view_animation.c | 113 +++++++++++++++++++++++++++++ examples/gui/demo_workbench.c | 7 +- 2 files changed, 119 insertions(+), 1 deletion(-) create mode 100644 examples/gui/demo_view_animation.c diff --git a/examples/gui/demo_view_animation.c b/examples/gui/demo_view_animation.c new file mode 100644 index 0000000000..f0a99ecb21 --- /dev/null +++ b/examples/gui/demo_view_animation.c @@ -0,0 +1,113 @@ +#include +#include +#include +#include + +/* + * 直接在DC上绘图以实现动画效果 + * + * 动画是依赖于定时器驱动的，会上下翻滚显示文字 + * "飞线乱飞" + */ +static rt_int8_t dx = 1, dy = 1; +static rtgui_rect_t text_rect; +static rtgui_timer_t *timer; + +void timeout(struct rtgui_timer* timer, void* parameter) +{ + struct rtgui_dc* dc; + rtgui_rect_t rect; + rtgui_widget_t *widget; + + /**/ + widget = (rtgui_widget_t*)parameter; + + /* 获得控件所属的DC */ + dc = rtgui_dc_begin_drawing(widget); + if (dc == RT_NULL) /* 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） */ + return ; + + /* 获得demo view允许绘图的区域，主要用于判断边界 */ + demo_view_get_rect(RTGUI_VIEW(widget), &rect); + rect.y2 -= 5; + + /* 判断是否是第一次绘图 */ + if ((text_rect.x1 == 0) && (text_rect.y1 == 0)) + { + rtgui_rect_moveto(&text_rect, rect.x1, rect.y1); + } + else + { + /* 擦除老的文字 */ + rtgui_dc_fill_rect(dc, &text_rect); + } + + /* 设置dx和dy */ + if (text_rect.x2 >= rect.x2) dx = -1; + if (text_rect.x1 < rect.x1) dx = 1; + if (text_rect.y2 >= rect.y2) dy = -1; + if (text_rect.y1 < rect.y1) dy = 1; + + /* 移动文本框的位置 */ + text_rect.x1 += dx; text_rect.x2 += dx; + text_rect.y1 += dy; text_rect.y2 += dy; + + /* 绘图 */ + rtgui_dc_draw_text(dc, "飞线乱飞", &text_rect); + + /* 绘图完成 */ + rtgui_dc_end_drawing(dc); +} + +rt_bool_t animation_event_handler(rtgui_widget_t* widget, rtgui_event_t *event) +{ + if (event->type == RTGUI_EVENT_PAINT) + { + struct rtgui_dc* dc; + rtgui_rect_t rect; + + /* 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); + + /* 获得控件所属的DC */ + dc = rtgui_dc_begin_drawing(widget); + if (dc == RT_NULL) /* 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） */ + return RT_FALSE; + + /* 获得demo view允许绘图的区域 */ + demo_view_get_rect(RTGUI_VIEW(widget), &rect); + + /* 擦除所有 */ + rtgui_dc_fill_rect(dc, &rect); + + /* 绘图 */ + rtgui_dc_draw_text(dc, "飞线乱飞", &text_rect); + + /* 绘图完成 */ + rtgui_dc_end_drawing(dc); + } + else + { + /* 调用默认的事件处理函数 */ + return rtgui_view_event_handler(widget, event); + } + + return RT_FALSE; +} + +rtgui_view_t *demo_view_animation(rtgui_workbench_t* workbench) +{ + rtgui_view_t *view; + + view = demo_view(workbench, "DC 动画"); + if (view != RT_NULL) + rtgui_widget_set_event_handler(RTGUI_WIDGET(view), animation_event_handler); + + rtgui_font_get_metrics(RTGUI_WIDGET_FONT(RTGUI_WIDGET(view)), "飞线乱飞", &text_rect); + + /* 启动定时器以触发动画 */ + timer = rtgui_timer_create(2, RT_TIMER_FLAG_PERIODIC, timeout, (void*)view); + rtgui_timer_start(timer); + + return view; +} diff --git a/examples/gui/demo_workbench.c b/examples/gui/demo_workbench.c index 1afba3d7fb..a8b9bfc0a9 100644 --- a/examples/gui/demo_workbench.c +++ b/examples/gui/demo_workbench.c @@ -37,7 +37,11 @@ static void workbench_entry(void* parameter) struct rtgui_workbench* workbench; /* 鍒涘缓GUI搴旂敤闇瑕佺殑娑堟伅闃熷垪 */ - mq = rt_mq_create("workbench", 256, 4, RT_IPC_FLAG_FIFO); +#ifdef RTGUI_USING_SMALL_SIZE + mq = rt_mq_create("workbench", 64, 8, RT_IPC_FLAG_FIFO); +#else + mq = rt_mq_create("workbench", 256, 8, RT_IPC_FLAG_FIFO); +#endif /* 娉ㄥ唽褰撳墠绾跨▼涓篏UI绾跨▼ */ rtgui_thread_register(rt_thread_self(), mq); @@ -49,6 +53,7 @@ static void workbench_entry(void* parameter) /* 鍒濆鍖栧悇涓緥瀛愮殑瑙嗗浘 */ demo_view_dc(workbench); + demo_view_animation(workbench); demo_view_window(workbench); demo_view_label(workbench); demo_view_button(workbench); -- GitLab