update GUI examples.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@344 bbd45198-f89e-11dd-88c7-29a3b14d5316

examples/gui/SConscript

+Import('env')
+
+src_local = Split("""
+demo_fnview.c
+demo_listview.c
+demo_panel_single.c
+demo_view.c
+demo_view_box.c
+demo_view_button.c
+demo_view_checkbox.c
+demo_view_dc.c
+demo_view_image.c
+demo_view_label.c
+demo_view_mywidget.c
+demo_view_progressbar.c
+demo_view_radiobox.c
+demo_view_slider.c
+demo_view_textbox.c
+demo_view_window.c
+demo_workbench.c
+gui_init.c
+mywidget.c
+""")
+
+# The set of source files associated with this SConscript file.
+obj = env.Object(src_local)
+
+Return('obj')

examples/gui/demo_view.c

@@ -8,10 +8,8 @@ static rtgui_view_t* demo_view_list[32];
 static rt_uint32_t demo_view_current = 0;
 static rt_uint32_t demo_view_number = 0;
 
-static void demo_view_next(struct rtgui_widget* widget, rtgui_event_t *event)
+void demo_view_next(struct rtgui_widget* widget, rtgui_event_t *event)
 {
-	RT_ASSERT(widget != RT_NULL);
-
 	if (demo_view_current + 1< demo_view_number)
 	{
 		demo_view_current ++;
@@ -19,10 +17,8 @@ static void demo_view_next(struct rtgui_widget* widget, rtgui_event_t *event)
 	}
 }
 
-static void demo_view_prev(struct rtgui_widget* widget, rtgui_event_t *event)
+void demo_view_prev(struct rtgui_widget* widget, rtgui_event_t *event)
 {
-	RT_ASSERT(widget != RT_NULL);
-
 	if (demo_view_current != 0)
 	{
 		demo_view_current --;

examples/gui/demo_view_dc.c

@@ -12,11 +12,11 @@ rt_bool_t dc_event_handler(rtgui_widget_t* widget, rtgui_event_t *event)
 		rt_uint32_t vx[] = {20, 50, 60, 45, 60, 20};
 		rt_uint32_t vy[] = {150, 50, 90, 60, 45, 50};
 
-		/* 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它先绘图 */
+		/* 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的处理                                                     */
+		/* 下面的是DC的处理                                             */
 		/************************************************************************/
 
 		/* 获得控件所属的DC */
@@ -35,6 +35,10 @@ rt_bool_t dc_event_handler(rtgui_widget_t* widget, rtgui_event_t *event)
 		rtgui_dc_set_color(dc, green);
 		rtgui_dc_fill_circle(dc, rect.x1 + 30, rect.y1 + 10, 10);
 
+		/* 画一个圆弧 */ 
+		rtgui_dc_set_color(dc, RTGUI_RGB(250, 120, 120));
+		rtgui_dc_draw_arc(dc, rect.x1 + 120, rect.y1 + 60, 30, 0, 120);
+
 		/* 多边形 */
 		rtgui_dc_set_color(dc, blue);
 		rtgui_dc_draw_polygon(dc, vx, vy, 6);
@@ -56,7 +60,8 @@ rtgui_view_t *demo_view_dc(rtgui_workbench_t* workbench)
 	rtgui_view_t *view;
 
 	view = demo_view(workbench, "DC Demo");
-	rtgui_widget_set_event_handler(RTGUI_WIDGET(view), dc_event_handler);
+	if (view != RT_NULL)
+		rtgui_widget_set_event_handler(RTGUI_WIDGET(view), dc_event_handler);
 
 	return view;
 }

examples/gui/demo_view_image.c

+#include "demo_view.h"
+#include <rtgui/widgets/button.h>
+#include <rtgui/widgets/filelist_view.h>
+
+static rtgui_image_t* image = RT_NULL;
+static rtgui_view_t* _view = RT_NULL;
+
+static void open_btn_onbutton(rtgui_widget_t* widget, struct rtgui_event* event)
+{
+	/* create a file list view */
+	rtgui_filelist_view_t *view;
+	rtgui_workbench_t *workbench;
+	rtgui_rect_t rect;
+
+	workbench = RTGUI_WORKBENCH(rtgui_widget_get_toplevel(widget));
+	rtgui_widget_get_rect(RTGUI_WIDGET(workbench), &rect);
+
+#ifdef _WIN32
+	view = rtgui_filelist_view_create(workbench, "d:\\", "*.*", &rect);
+#else
+	view = rtgui_filelist_view_create(workbench, "/", "*.*", &rect);
+#endif
+	if (rtgui_view_show(RTGUI_VIEW(view), RT_TRUE) == RTGUI_MODAL_OK)
+	{
+		char path[32], image_type[8];
+
+		/* set label */
+		rtgui_filelist_get_fullpath(view, path, sizeof(path));
+		if (image != RT_NULL) rtgui_image_destroy(image);
+
+		rt_memset(image_type, 0, sizeof(image_type));
+
+		/* 获得图像的类型 */
+		if (rt_strstr(path, ".png") != RT_NULL) strcat(image_type, "png");
+		if (rt_strstr(path, ".jpg") != RT_NULL) strcat(image_type, "jpeg");
+		if (rt_strstr(path, ".hdc") != RT_NULL) strcat(image_type, "hdc");
+		if (image_type[0] != '\0')
+			image = rtgui_image_create_from_file(image_type, path, RT_TRUE);
+	}
+
+	/* 删除 文件列表 视图 */
+	rtgui_view_destroy(RTGUI_VIEW(view));
+	rtgui_view_show(_view, RT_FALSE);
+}
+
+static rt_bool_t demo_view_event_handler(rtgui_widget_t* widget, rtgui_event_t *event)
+{
+	rt_bool_t result;
+
+	/* 用默认的事件处理函数 */
+	result = rtgui_view_event_handler(widget, event);
+
+	if (event->type == RTGUI_EVENT_PAINT)
+	{
+		struct rtgui_dc* dc;
+		rtgui_rect_t rect;
+
+		/* 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);
+
+		/* 获得图像显示区域 */
+		rect.x1 += 5; rect.x2 -= 5;
+		rect.y1 += 30; 
+
+		if (image != RT_NULL)
+			rtgui_image_blit(image, dc, &rect);
+
+		/* 绘图完成 */
+		rtgui_dc_end_drawing(dc);
+	}
+
+	return result;
+}
+
+rtgui_view_t* demo_view_image(rtgui_workbench_t* workbench)
+{
+	rtgui_rect_t rect;
+	rtgui_button_t* open_btn;
+
+	_view = demo_view(workbench, "图像演示");
+	if (_view != RT_NULL)
+		rtgui_widget_set_event_handler(RTGUI_WIDGET(_view), demo_view_event_handler);
+
+	demo_view_get_rect(_view, &rect);
+	rect.x1 += 5; rect.x2 = rect.x1 + 120;
+	rect.y2 = rect.y1 + 20;
+	open_btn = rtgui_button_create("打开图像文件");
+	rtgui_container_add_child(RTGUI_CONTAINER(_view), RTGUI_WIDGET(open_btn));
+	rtgui_widget_set_rect(RTGUI_WIDGET(open_btn), &rect);
+	rtgui_button_set_onbutton(open_btn, open_btn_onbutton);
+
+	return _view;
+}

examples/gui/demo_view_mywidget.c

+#include "demo_view.h"
+#include "mywidget.h"
+
+rtgui_view_t *demo_view_mywidget(rtgui_workbench_t* workbench)
+{
+	rtgui_view_t *view;
+	rtgui_rect_t rect;
+	rtgui_mywidget_t *mywidget;
+
+	/* create a demo view */
+	view = demo_view(workbench, "MyWidget View");
+
+	/* get demo view rect */
+	demo_view_get_rect(view, &rect);
+	rect.x1 += 5; rect.x2 = rect.y1 + 80;
+	rect.y1 += 5; rect.y2 = rect.y1 + 80;
+	mywidget = rtgui_mywidget_create(&rect);
+	rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(mywidget));
+
+	/* get demo view rect */
+	demo_view_get_rect(view, &rect);
+	rect.x1 += 25; rect.x2 = rect.y1 + 40;
+	rect.y1 += 5 + 100; rect.y2 = rect.y1 + 40;
+	mywidget = rtgui_mywidget_create(&rect);
+	rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(mywidget));
+
+	return view;
+}

examples/gui/demo_workbench.c

@@ -4,33 +4,30 @@
 #include <rtgui/widgets/view.h>
 #include <rtgui/widgets/workbench.h>
 
-static rt_bool_t view_event_handler(struct rtgui_widget* widget, struct rtgui_event* event)
+static rt_bool_t demo_workbench_event_handler(struct rtgui_widget* widget, struct rtgui_event* event)
 {
-	/* 我们目前只对绘制事件感兴趣 */
-	if (event->type == RTGUI_EVENT_PAINT)
+	/* 我们目前只对按键事件感兴趣 */
+	if (event->type == RTGUI_EVENT_KBD)
 	{
-		struct rtgui_dc* dc;
-		struct rtgui_rect rect;
-
-		/* 获得一个设备上下文 */
-		dc = rtgui_dc_begin_drawing(widget);
-		if (dc == RT_NULL) return RT_FALSE; /* 如果获取失败代表什么？这个控件是隐藏的或... */
-		rtgui_widget_get_rect(widget, &rect); /* 获得控件的可视区域 */
-
-		/* 先对所在可视区域全部填充为背景色 */
-		rtgui_dc_fill_rect(dc, &rect);
-
-		/* 绘制一个hello! */
-		rtgui_dc_draw_text(dc, "hello world", &rect);
-
-		/* 通知RTGUI，绘制结束 */
-		rtgui_dc_end_drawing(dc);
-
-		return RT_FALSE;
+		struct rtgui_event_kbd* ekbd = (struct rtgui_event_kbd*)event;
+
+		if (ekbd->type == RTGUI_KEYDOWN)
+		{
+			if (ekbd->key == RTGUIK_RIGHT)
+			{
+				demo_view_next(RT_NULL, RT_NULL);
+				return RT_TRUE;
+			}
+			else if (ekbd->key == RTGUIK_LEFT)
+			{
+				demo_view_prev(RT_NULL, RT_NULL);
+				return RT_TRUE;
+			}
+		}
 	}
 
 	/* 如果不是绘制事件，使用view原来的事件处理函数处理 */
-	return rtgui_view_event_handler(widget, event);
+	return rtgui_workbench_event_handler(widget, event);
 }
 
 static void workbench_entry(void* parameter)
@@ -48,13 +45,9 @@ static void workbench_entry(void* parameter)
 	workbench = rtgui_workbench_create("main", "workbench");
 	if (workbench == RT_NULL) return;
 
-	/* 创建一个工作台上的一个视图 */
-	view = rtgui_view_create("view");
-	rtgui_widget_set_event_handler(RTGUI_WIDGET(view), view_event_handler);
-
-	/* 在工作台上添加一个视图 */
-	rtgui_workbench_add_view(workbench, view);
+	rtgui_widget_set_event_handler(RTGUI_WIDGET(workbench), demo_workbench_event_handler);
 
+	/* 初始化各个例子的视图 */
 	demo_view_dc(workbench);
 	demo_view_window(workbench);
 	demo_view_label(workbench);
@@ -64,6 +57,8 @@ static void workbench_entry(void* parameter)
 	demo_view_radiobox(workbench);
 	demo_view_textbox(workbench);
 	demo_view_slider(workbench);
+	demo_view_mywidget(workbench);
+	demo_view_image(workbench);
 	demo_listview_view(workbench);
 	demo_fn_view(workbench);
 

examples/gui/gui_init.c

+#include <rtgui/rtgui.h>
+#include <rtgui/rtgui_server.h>
+
+extern void rt_hw_lcd_init(void);
+extern void rt_hw_key_init(void);
+extern void workbench_init(void);
+extern void panel_init(void);
+
+/* GUI相关演示入口，需放在线程中进行初始化 */
+void rtgui_startup()
+{
+	/* GUI系统初始化 */
+    rtgui_system_server_init();
+
+	/* 按键初始化 */
+	rt_hw_key_init();
+	/* LCD驱动初始化 */
+	rt_hw_lcd_init();
+
+	/* 各个面板初始化 */
+	panel_init();
+
+	/* 启动workbench */
+	workbench_init();
+}

examples/gui/mywidget.c

+#include <rtgui/dc.h>
+#include "mywidget.h"
+
+/* 控件绘图函数 */
+static void rtgui_mywidget_ondraw(struct rtgui_mywidget* me)
+{
+	struct rtgui_dc* dc;
+	struct rtgui_rect rect;
+	rt_uint16_t x, y;
+
+	/* 获得目标DC，开始绘图 */
+	dc = rtgui_dc_begin_drawing(RTGUI_WIDGET(me));
+	if (dc == RT_NULL) return;
+
+	/* 获得窗口的尺寸 */
+	rtgui_widget_get_rect(RTGUI_WIDGET(me), &rect);
+	/* 绘制背景色 */
+	rtgui_dc_set_color(dc, white);
+	rtgui_dc_fill_rect(dc, &rect);
+
+	/* 计算中心原点 */
+	x = (rect.x2 + rect.x1)/2; y = (rect.y2 + rect.y1)/2;
+
+	/* 绘制十字架 */
+	rtgui_dc_set_color(dc, black);
+	rtgui_dc_draw_hline(dc, rect.x1, rect.x2, y);
+	rtgui_dc_draw_vline(dc, x, rect.y1, rect.y2);
+
+	/* 根据状态绘制圆圈 */
+	if (me->status == MYWIDGET_STATUS_ON)
+		rtgui_dc_set_color(dc, green);
+	else
+		rtgui_dc_set_color(dc, red);
+	rtgui_dc_fill_circle(dc, x, y, 5);
+
+	/* 结束绘图 */
+	rtgui_dc_end_drawing(dc);
+	return;
+}
+
+/* 鼠标事件处理函数 */
+static void rtgui_mywidget_onmouse(struct rtgui_mywidget* me, struct rtgui_event_mouse* mouse)
+{
+	struct rtgui_rect rect;
+	rt_uint16_t x, y;
+
+	/* 仅对鼠标抬起动作进行处理 */
+	if (!(mouse->button & RTGUI_MOUSE_BUTTON_UP)) return;
+
+	/* 获得控件的位置 */
+	rtgui_widget_get_rect(RTGUI_WIDGET(me), &rect);
+	/* get_rect函数获得是控件的相对位置，而鼠标事件给出的坐标是绝对坐标，需要做一个转换 */
+	rtgui_widget_rect_to_device(RTGUI_WIDGET(me), &rect);
+
+	/* 计算中心原点 */
+	x = (rect.x2 + rect.x1)/2; y = (rect.y2 + rect.y1)/2;
+
+	/* 比较鼠标坐标是否在圈内 */
+	if ((mouse->x < x + 5 && mouse->x > x - 5) &&
+		(mouse->y < y + 5 && mouse->y > y - 5))
+	{
+		/* 更改控件状态 */
+		if (me->status & MYWIDGET_STATUS_ON) me->status = MYWIDGET_STATUS_OFF;
+		else me->status = MYWIDGET_STATUS_ON;
+
+		/* 刷新(重新绘制)控件 */
+		rtgui_mywidget_ondraw(me);
+	}
+}
+
+static rt_bool_t rtgui_mywidget_event_handler(struct rtgui_widget* widget, struct rtgui_event* event)
+{
+	struct rtgui_mywidget* me = (struct rtgui_mywidget*)widget;
+
+	switch (event->type)
+	{
+	case RTGUI_EVENT_PAINT:
+		/* 绘制事件，调用绘图函数绘制 */
+		rtgui_mywidget_ondraw(me);
+		break;
+
+	case RTGUI_EVENT_MOUSE_BUTTON:
+		/* 鼠标事件 */
+		rtgui_mywidget_onmouse(RTGUI_MYWIDGET(me), (struct rtgui_event_mouse*) event);
+		break;
+
+	/* 其他事件调用父类的事件处理函数 */
+	default:
+		rtgui_widget_event_handler(widget, event);
+	}
+
+	return RT_FALSE;
+}
+
+static void _rtgui_mywidget_constructor(rtgui_mywidget_t *mywidget)
+{
+	/* 初始化控件并设置事件处理函数 */
+	RTGUI_WIDGET(mywidget)->flag |= RTGUI_WIDGET_FLAG_FOCUSABLE;
+	rtgui_widget_set_event_handler(RTGUI_WIDGET(mywidget), rtgui_mywidget_event_handler);
+
+	mywidget->status = MYWIDGET_STATUS_OFF;
+}
+
+static void _rtgui_mywidget_destructor(rtgui_mywidget_t *mywidget)
+{
+}
+
+rtgui_type_t *rtgui_mywidget_type_get(void)
+{
+	static rtgui_type_t *mywidget_type = RT_NULL;
+
+	if (!mywidget_type)
+	{
+		mywidget_type = rtgui_type_create("mywidget", RTGUI_WIDGET_TYPE,
+			sizeof(rtgui_mywidget_t),
+			RTGUI_CONSTRUCTOR(_rtgui_mywidget_constructor),
+			RTGUI_DESTRUCTOR(_rtgui_mywidget_destructor));
+	}
+
+	return mywidget_type;
+}
+
+struct rtgui_mywidget* rtgui_mywidget_create(rtgui_rect_t* r)
+{
+    struct rtgui_mywidget* me;
+
+    me = (struct rtgui_mywidget*) rtgui_widget_create (RTGUI_MYWIDGET_TYPE);
+    if (me != RT_NULL)
+    {
+		rtgui_widget_set_rect(RTGUI_WIDGET(me), r);
+    }
+
+	return me;
+}
+
+void rtgui_mywidget_destroy(struct rtgui_mywidget* me)
+{
+	rtgui_widget_destroy(RTGUI_WIDGET(me));
+}

examples/gui/mywidget.h

+#ifndef __MY_WIDGET_H__
+#define __MY_WIDGET_H__
+
+#include <rtgui/rtgui.h>
+#include <rtgui/widgets/widget.h>
+
+#define MYWIDGET_STATUS_ON	1
+#define MYWIDGET_STATUS_OFF	0
+
+/** Gets the type of a button */
+#define RTGUI_MYWIDGET_TYPE       (rtgui_mywidget_type_get())
+/** Casts the object to an rtgui_button */
+#define RTGUI_MYWIDGET(obj)       (RTGUI_OBJECT_CAST((obj), RTGUI_MYWIDGET_TYPE, rtgui_mywidget_t))
+/** Checks if the object is an rtgui_button */
+#define RTGUI_IS_MYWIDGET(obj)    (RTGUI_OBJECT_CHECK_TYPE((obj), RTGUI_MYWIDGET_TYPE))
+
+/* 个性化控件 */
+struct rtgui_mywidget
+{
+	struct rtgui_widget parent;
+
+	/* 状态：ON、OFF */
+	rt_uint8_t status;
+};
+typedef struct rtgui_mywidget rtgui_mywidget_t;
+
+struct rtgui_mywidget* rtgui_mywidget_create(rtgui_rect_t* r);
+void rtgui_mywidget_destroy(struct rtgui_mywidget* me);
+
+#endif