add notebook example.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1222 bbd45198-f89e-11dd-88c7-29a3b14d5316

examples/gui/demo_view_notebook.c

+/*
+ * 程序清单：notebook控件演示
+ *
+ * 这个例子会在创建出的view上演示notebook控件
+ */
+
+#include "demo_view.h"
+#include <rtgui/widgets/notebook.h>
+#include <rtgui/widgets/listbox.h>
+
+const static struct rtgui_listbox_item items[] = 
+{
+	{"list #0", RT_NULL},
+	{"list #1", RT_NULL},
+	{"list #2", RT_NULL},
+	{"list #3", RT_NULL},
+};
+
+/* 创建用于演示notebook控件的视图 */
+rtgui_view_t* demo_view_notebook(rtgui_workbench_t* workbench)
+{
+	rtgui_rect_t rect;
+	rtgui_view_t* view;
+	rtgui_notebook_t* notebook;
+	rtgui_listbox_t* box;
+
+	/* 先创建一个演示用的视图 */
+	view = demo_view(workbench, "Notebook View");
+
+	/* 获得视图的位置信息 */
+	demo_view_get_rect(view, &rect);
+
+	notebook = rtgui_notebook_create(&rect);
+	/* view是一个container控件，调用add_child方法添加这个notebook控件 */
+	rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(notebook));
+
+	box = rtgui_listbox_create(items, sizeof(items)/sizeof(struct rtgui_listbox_item), &rect);
+	rtgui_notebook_add(notebook, "Tab 1", RTGUI_WIDGET(box));
+
+	return view;
+}