请问为神马rtgui的按键不能弹起来。。

发布于 2012-05-14 21:58:07 浏览：2460 订阅该版

2 个回答

luoyuncong 2012-05-15

这家伙很懒，什么也没写！

你是用的stm32f10x里的touch.c吗，哪个驱动有点问题，某些情况下只发送了按下事件，没有发送弹起事件。你不妨用我这个touch_timeout替换原来的试试看。我以前的项目用800x480的屏时，就经常出现button不能弹起的情况，listbox会选中两个item等问题。虽然代码加了一些判断，但不好，不能实现窗口的拖，因为必须要等待弹起事件发送出去才能发送按下事件。如果你有更好的修改，望分享一份过来 [s:175] 。

```
void touch_timeout(void* parameter)
{
    static char flag = 0;
    static char press = 0;
    struct rtgui_event_mouse emouse;
    static struct _touch_previous
    {
        rt_uint32_t x;
        rt_uint32_t y;
    } touch_previous;

if (GPIO_ReadInputDataBit(GPIOA,GPIO_Pin_0) != 0)
    {
        int tmer = RT_TICK_PER_SECOND/8 ;
        if(press == 0) return;
        EXTI_Enable(1);
        emouse.parent.type = RTGUI_EVENT_MOUSE_BUTTON;
        emouse.button = (RTGUI_MOUSE_BUTTON_LEFT |RTGUI_MOUSE_BUTTON_UP);

/* use old value */
        emouse.x = touch->x;
        emouse.y = touch->y;

/* stop timer */
        rt_timer_stop(touch->poll_timer);
        rt_kprintf("touch up: (%d, %d)
", emouse.x, emouse.y);
        flag = 0;

if ((touch->calibrating == RT_TRUE) && (touch->calibration_func != RT_NULL))
        {
            /* callback function */
            touch->calibration_func(emouse.x, emouse.y);
        }
        rt_timer_control(touch->poll_timer , RT_TIMER_CTRL_SET_TIME , &tmer);
            /* send event to server */
	if (touch->calibrating != RT_TRUE)
	     rtgui_server_post_event(&emouse.parent, sizeof(struct rtgui_event_mouse));
	press = 0;
    }
    else
    {
    	if(press == 1) return;
        if(flag == 0)
        {
            int tmer = RT_TICK_PER_SECOND/20 ;
            /* calculation */
            rtgui_touch_calculate();

/* send mouse event */
            emouse.parent.type = RTGUI_EVENT_MOUSE_BUTTON;
            emouse.parent.sender = RT_NULL;

emouse.x = touch->x;
            emouse.y = touch->y;

touch_previous.x = touch->x;
            touch_previous.y = touch->y;

/* init mouse button */
            emouse.button = (RTGUI_MOUSE_BUTTON_LEFT |RTGUI_MOUSE_BUTTON_DOWN);

//	            rt_kprintf("touch down: (%d, %d)
", emouse.x, emouse.y);
            flag = 1;
            rt_timer_control(touch->poll_timer , RT_TIMER_CTRL_SET_TIME , &tmer);
        }
        else
        {
            /* calculation */
            rtgui_touch_calculate();

#define previous_keep      30
            //判断移动距离是否小于previous_keep,减少误动作.
            if(
                (touch_previous.x<touch->x+previous_keep)
                && (touch_previous.x>touch->x-previous_keep)
                && (touch_previous.y<touch->y+previous_keep)
                && (touch_previous.y>touch->y-previous_keep))
            {
                return;
            }

touch_previous.x = touch->x;
            touch_previous.y = touch->y;

/* send mouse event */
            emouse.parent.type = RTGUI_EVENT_MOUSE_BUTTON ;
            emouse.parent.sender = RT_NULL;

emouse.x = touch->x;
            emouse.y = touch->y;

/* init mouse button */
            emouse.button = (RTGUI_MOUSE_BUTTON_RIGHT |RTGUI_MOUSE_BUTTON_DOWN);
//            rt_kprintf("touch motion: (%d, %d)
", emouse.x, emouse.y);

}
        press = 1;
	if(touch->calibrating != RT_TRUE)
	    rtgui_server_post_event(&emouse.parent, sizeof(struct rtgui_event_mouse));
    }
}
```