rt-thread/examples/gui/demo_view_menu.c

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/*
* 程序清单menu控件演示
*
* 这个例子会在创建出的view上添加几个不同类型的label控件
*/
#include "demo_view.h"
#include <rtgui/widgets/menu.h>
#include <rtgui/widgets/button.h>
static rt_bool_t _onmenuitem(struct rtgui_widget *widget, struct rtgui_event* event)
{
rt_kprintf("menu action!!\n");
return RT_TRUE;
}
static const rtgui_menu_item_t sub_items[] =
{
{RTGUI_ITEM_NORMAL, "item #1", RT_NULL, RT_NULL, 0, _onmenuitem},
{RTGUI_ITEM_NORMAL, "item #2", RT_NULL, RT_NULL, 0, RT_NULL},
{RTGUI_ITEM_SEPARATOR, RT_NULL, RT_NULL, RT_NULL, 0, RT_NULL},
{RTGUI_ITEM_NORMAL, "item #3", RT_NULL, RT_NULL, 0, RT_NULL},
};
static const rtgui_menu_item_t items[] =
{
{RTGUI_ITEM_NORMAL, "item #1", RT_NULL, RT_NULL, 0, RT_NULL},
{RTGUI_ITEM_NORMAL, "item #2", RT_NULL, RT_NULL, 0, RT_NULL},
{RTGUI_ITEM_SEPARATOR, RT_NULL, RT_NULL, RT_NULL, 0, RT_NULL},
{RTGUI_ITEM_SUBMENU, "item #3", RT_NULL, (struct rtgui_menu_item_t *)sub_items, sizeof(sub_items)/sizeof(sub_items[0]), RT_NULL},
};
static rtgui_menu_t* menu;
static void _onmenu(struct rtgui_widget* widget, struct rtgui_event* event)
{
rtgui_rect_t rect;
rtgui_widget_get_rect(widget, &rect);
rtgui_widget_rect_to_device(widget, &rect);
if (menu != RT_NULL)
rtgui_menu_pop(menu, rect.x1, rect.y2 + 5);
}
/* 创建用于演示menu控件的视图 */
rtgui_view_t* demo_view_menu(rtgui_workbench_t* workbench)
{
rtgui_rect_t rect;
rtgui_view_t* view;
rtgui_button_t* button;
/* 先创建一个演示用的视图 */
view = demo_view(workbench, "MENU View");
/* 获得视图的位置信息 */
demo_view_get_rect(view, &rect);
rect.x1 += 5;
rect.x2 = rect.x1 + 100;
rect.y1 += 5;
rect.y2 = rect.y1 + 20;
/* 创建一个button控件 */
button = rtgui_button_create("Pop Menu");
/* 设置button的位置 */
rtgui_widget_set_rect(RTGUI_WIDGET(button), &rect);
/* view是一个container控件调用add_child方法添加这个button控件 */
rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(button));
rtgui_button_set_onbutton(button, _onmenu);
menu = rtgui_menu_create("Menu Test", RT_NULL, items, sizeof(items)/sizeof(items[0]));
return view;
}