/**
* @brief: 触摸按键扫描
* @param: tp:0,屏幕坐标;1,物理坐标(校准等特殊场合用)
* @retval:当前触屏状态, 0,触屏无触摸;1,触屏有触摸
*/
u8 TP_Scan(u8 tp)
{
if(PEN==0)//有按键按下
{
if(tp)TP_Read_XY2(&tp_dev.x,&tp_dev.y);//读取物理坐标
else if(TP_Read_XY2(&tp_dev.x,&tp_dev.y))//读取屏幕坐标
{
tp_dev.x=tp_dev.xfac*tp_dev.x+tp_dev.xoff;//将结果转换为屏幕坐标
tp_dev.y=tp_dev.yfac*tp_dev.y+tp_dev.yoff;
}
if((tp_dev.sta&TP_PRES_DOWN)==0)//之前没有被按下
{
tp_dev.sta=TP_PRES_DOWN|TP_CATH_PRES;//按键按下
tp_dev.x0=tp_dev.x;//记录第一次按下时的坐标
tp_dev.y0=tp_dev.y;
}
}else
{
if(tp_dev.sta&TP_PRES_DOWN)//之前是被按下的
{
tp_dev.sta&=~(1<<7);//标记按键松开
}else//之前就没有被按下
{
tp_dev.x0=0;
tp_dev.y0=0;
tp_dev.x=0xffff;
tp_dev.y=0xffff;
}
}
return tp_dev.sta&TP_PRES_DOWN;//返回当前的触屏状态
}
u8 TP_Scan(u8 tp)
{
static unsigned short x,y;
static struct file *fd = NULL;
static int flag = 0;
gui_msg_l0 touch_msg;
if(fd == NULL)
fd = open("/dev/queuel0.d",__FS_OPEN_EXISTING | __FS_WRITE);
if(flag)
{
touch_msg.x_pos = 25;
touch_msg.y_pos = 25;
touch_msg.event_type = onfocus;
write(fd,(const char *)&touch_msg,sizeof(touch_msg));
}else
{
touch_msg.x_pos = 25;
touch_msg.y_pos = 25;
touch_msg.event_type = losefocus;
write(fd,(const char *)&touch_msg,sizeof(touch_msg));
}
flag ^= 1;
if(PEN==0)//有按键按下
{
TP_Read_XY2(&x,&y);//读取物理坐标
}
return 0;
}
int GUI_TOUCH_X_MeasureY(void)
{
u16 x,y;
TP_Read_XY2(&x,&y);
//TP_Scan(0);
return y;
}
unsigned char Convert_Pos(void)
{
unsigned char l=0;
if(TP_Read_XY2(&tp_pixad.x,&tp_pixad.y)==1)
{
l=1;
tp_pixlcd.x=tp_pixad.x>chx?((unsigned long)tp_pixad.x-chx)*1000/vx:(chx-(unsigned long)tp_pixad.x)*1000/vx;
tp_pixlcd.y=tp_pixad.y>chy?((unsigned long)tp_pixad.y-chy)*1000/vy:(chy-(unsigned long)tp_pixad.y)*1000/vy;
}
return l;
}
void Get_Click(u16 *x,u16 *y)
{
TP_Read_XY2(x,y);
//TP_Draw_Big_Point(*x=*x/Touch_X,*y=*y/Touch_Y,Red);
*x=*x/14.03-14.85;*y=*y/10.81-17.52;
}
