[请教]关于模态窗口的问题

发布于 2013-04-18 16:08:26 浏览：7009 订阅该版

19 个回答

bernard 2013-04-18

这家伙很懒，什么也没写！

softwind 2013-04-19

这家伙很懒，什么也没写！

softwind 2013-04-19

这家伙很懒，什么也没写！

再具体一点:
该界面是在Realtouch上实现的，
1)  Panel1就是Realtouch上的一个block_panel;
2)

```

layout_panel = rtgui_panel_create(RTGUI_BORDER_NONE);
	rtgui_widget_set_rect(RTGUI_WIDGET(layout_panel), &r1); 
	rtgui_container_add_child(RTGUI_CONTAINER(panel), RTGUI_WIDGET(layout_panel));
	rtgui_object_set_event_handler(RTGUI_OBJECT(layout_panel), layout_panel_event_handler);
```

3) Panel2的消息处理函数

```
	rt_bool_t layout_panel_event_handler(struct rtgui_object* object, struct rtgui_event* event)
	{
		struct rtgui_panel *panel;

panel = RTGUI_PANEL(object);
		if (event->type == RTGUI_EVENT_PAINT)
        {
        	/* some painting */
	    }
		else if(event->type == RTGUI_EVENT_MOUSE_BUTTON)
		{
			rt_kprintf("layout panel <- RTGUI_EVENT_MOUSE_BUTTON
");
			{
				/* do something here */
			}	
			return RT_TRUE;
		} 
   		else
		{
			return rtgui_panel_event_handler(object, event);
		}
		return RT_FALSE;
	}
```

4)  "show" button 也在panel1上:

```

button = rtgui_button_create("show");
	rtgui_button_set_onbutton(button, on_show_btn);
	rtgui_widget_set_rect(RTGUI_WIDGET(button), &r1);
	rtgui_container_add_child(RTGUI_CONTAINER(panel), RTGUI_WIDGET(button));
```

```

static void on_show_btn(struct rtgui_object* object, struct rtgui_event* event)
	{
		/* do some processing here */

/* show the modal window */ 
		{
			struct rtgui_win* win;
			struct rtgui_label* label;
			struct rtgui_button* ok_btn; 
			struct rtgui_button* cancel_btn;
			struct rtgui_rect screen, rect = {0, 0, 350, 190};
			struct rtgui_rect r1;

rt_uint8_t* buf;

rtgui_graphic_driver_get_rect(rtgui_graphic_driver_get_default(), &screen);
	
    		rtgui_rect_moveto_align(&screen, &rect,	RTGUI_ALIGN_CENTER_HORIZONTAL | RTGUI_ALIGN_CENTER_VERTICAL);

win = rtgui_win_create(RT_NULL, "x-y-z position", &rect, 
						           RTGUI_WIN_STYLE_ONTOP | RTGUI_WIN_STYLE_DESTROY_ON_CLOSE);

buf = (rt_uint8_t*)rtgui_malloc(256);
			rt_snprintf(buf, 256, "X = %d, Y = %d, Z = %d", x, y, z);
			label = rtgui_label_create(buf);
			RTGUI_WIDGET_TEXTALIGN(label) = RTGUI_ALIGN_CENTER;

rect.x1 += 20;
			rect.y1 += 20;
			rect.x2 -= 20;
			rect.y2 -= 75;

rtgui_widget_set_rect(RTGUI_WIDGET(label), &rect);
			rtgui_container_add_child(RTGUI_CONTAINER(win), RTGUI_WIDGET(label));

rtgui_widget_get_extent(RTGUI_WIDGET(win), &rect);

ok_btn = rtgui_button_create("确认");
			rtgui_button_set_onbutton(ok_btn, on_xyz_ok_btn);
			r1.x1 = rect.x1 + 50;
			r1.x2 = r1.x1 + 90;
			r1.y2 = rect.y2 - 25;
			r1.y1 = r1.y2 - 39;
			rtgui_widget_set_rect(RTGUI_WIDGET(ok_btn), &r1);
			rtgui_container_add_child(RTGUI_CONTAINER(win), RTGUI_WIDGET(ok_btn));

cancel_btn = rtgui_button_create("取消");
			rtgui_button_set_onbutton(cancel_btn, on_xyz_cancel_btn);
			r1.x2 = rect.x2 - 50;
			r1.x1 = r1.x2 - 90;
			rtgui_widget_set_rect(RTGUI_WIDGET(cancel_btn), &r1);
			rtgui_container_add_child(RTGUI_CONTAINER(win), RTGUI_WIDGET(cancel_btn));

rtgui_win_show(win, RT_TRUE);

rtgui_free(buf);
			
		}
	}
   
```

6)  "确认" "取消"按钮对应的处理函数

```
static void on_xyz_ok_btn(struct rtgui_object* object, struct rtgui_event* event)
{
 	rtgui_win_t* win;

ok_pressed = RT_TRUE;
	win = RTGUI_WIN(rtgui_widget_get_toplevel(RTGUI_WIDGET(object)));
	rtgui_win_close(win);
}

static void on_xyz_cancel_btn(struct rtgui_object* object, struct rtgui_event* event)
{
	rtgui_win_t* win;

ok_pressed = RT_FALSE;
	win = RTGUI_WIN(rtgui_widget_get_toplevel(RTGUI_WIDGET(object)));
   	rtgui_win_close(win);
}
```