tpcfg.c

基于嵌入式图形库microwindows的简单示例程序10例

#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include "device.h"

//#ifdef S3C44B0_ADS7843_MOUSE
#include "touchscreen_s3c44b0_ads7843.h"
//#endif

static int pd_fd = -1;
extern SCREENDEVICE scrdev;

/*modify by kh 2003_12_21*/
struct tpmark
 {
  int ltx;
  int lty;
  int rbx;
  int rby;
 }tpMark;

MOUSEDEVICE mymousedev;
static int rx,ry;//任意点坐标
static int lt_x,lt_y;//左上角
static int rb_x,rb_y;//右下角
static char sure1,sure2,sure;
FILE  *tpmap;//存放校验坐标
static int x,y,z,t;
static int Open(MOUSEDEVICE *pmd);
static void Close(void);
static int Read(MWCOORD *px, MWCOORD *py, MWCOORD *pz, int *pb, int mode);
static int GetButtonInfo(void);
static void GetDefaultAccel(int *pscale,int *pthresh);
static void checkpoint();
static void savedata();

int main()
{
  printf("\n This program will guid to initial your touchpad.\n");
  checkpoint();
  printf("Are you sure?(input y/n)\n");
  //savedata();
  while(1)
  {
   	scanf("%c",&sure);
   	if((sure=='y')||(sure=='Y'))
    {
      savedata();
      break; 
    }
   if((sure=='n')||(sure=='N'))
    {
      printf("your touchscreen had't been initial,Please initial again!\n");
      exit(0);
    }
   printf("Please input y/n!\n");
   }
   return 0;
  /*if(!((sure=='y')||(sure=='Y')||(sure=='n')||(sure=='N')))*/
}


static int Open(MOUSEDEVICE *pmd)
{	       
	if((pd_fd = open(TS_DEVICE_FILE, O_NONBLOCK)) < 0) {
		EPRINTF("Error %d opening %s touchscreen device [%s]\n", 
			errno, TS_DEVICE, TS_DEVICE_FILE);
		return -1;
	}

	//GdHideCursor(&scrdev);  
	return pd_fd;
}

static void Close(void)
{
	// Close the touch panel device. 
 
	if(pd_fd < 0) return;
 
	close(pd_fd);
	pd_fd = -1;
}

static int GetButtonInfo(void)
{
	// get "mouse" buttons supported 
	return MWBUTTON_L;
}

static void GetDefaultAccel(int *pscale,int *pthresh)
{
	*pscale = 3;
	*pthresh = 5;
}

static int Read(MWCOORD *px, MWCOORD *py, MWCOORD *pz, int *pb, int mode)
{
	struct ts_event event;
	int bytes_read;
  
	// read a data point 
	bytes_read = read(pd_fd, &event, sizeof(event));
  
	if(bytes_read != sizeof(event)) {
		if(bytes_read == -1) {
			if(errno == EINTR || errno == EAGAIN) return 0;
			EPRINTF("[%s] Error %d reading from touch panel\n", TS_DEVICE, errno);
			return -1;
		}

		EPRINTF("[%s] Wrong number of bytes %d read from touch panel "
			"(expected %ld)\n", TS_DEVICE, bytes_read, sizeof(event));
		return 0;
	}

#ifdef S3C44B0_ADS7843_MOUSE
	//*px = (event.x-1719)*320/(314-1719);
	//*py = (event.y-408)*240/(3666-480);	
	*px = event.x;
	*py = event.y;	
#else	
	*px = event.x;
	*py = event.y;	
#endif

#if defined(TOUCHSCREEN_IPAQ) || defined(TOUCHSCREEN_ADS7846)\
	||defined(S3C44B0_ADS7843_MOUSE)
	*pb = (event.pressure) ? MWBUTTON_L : 0;
#else
	*pb = (event.pressure > 50) ? MWBUTTON_L : 0;
#endif
	*pz = event.pressure;
	//printf("zkh x=%d, y=%d, pressure=%d\n",*px,*py,*pz);
  
	if(!*pb)
		return 3;
	return 2;
}

static void checkpoint()
{
 rx=0;
 ry=0;
 lt_x=0;
 lt_y=0;
 rb_x=0;
 rb_y=0;
 //sure='n';
   mymousedev.Open(&mymousedev);
   //mymousedev.Read(&x, &y, &z, &t);
   printf("\nNow, press any point on touchpad!\n");
   while(z==0){mymousedev.Read(&x, &y, &z, &t);}
   rx=x; ry=y;
   printf("Any_point: rx=%d,ry=%d\n",rx,ry);
   while(z>0){mymousedev.Read(&x, &y, &z, &t);}
   //point_1
   
   printf("Next to press the LeftTop point of your touchsrceen!\n");
   printf("If you srue next coorinate is you want, please input y then press the point.\n");
   for(;;){
   while(z==0){mymousedev.Read(&x, &y, &z, &t);}
   if(lt_x+lt_y==0)
      {  lt_x=x; lt_y=y; }
   printf("Left_Top: lt_x=%d,lt_y=%d\n",lt_x,lt_y);
   while(z>0){mymousedev.Read(&x, &y, &z, &t);}
   scanf("%c",&sure1);
   if((sure1=='y')||(sure1=='Y'))
     {
         tpMark.ltx=lt_x;
	       tpMark.lty=lt_y;
         break;
     }
   else{lt_x=0; lt_y=0;}
   }    
   //point_2

   printf("Next to press the RightBottom point on your touchsrceen!\n");
   for(;;){
   while(z==0){mymousedev.Read(&x, &y, &z, &t);}
   if(rb_x+rb_y==0)
      {
	       rb_x=x;
         rb_y=y;
	     }
   printf("Right_Bottom: rb_x=%d,rb_y=%d\n",rb_x,rb_y);
   while(z>0){mymousedev.Read(&x, &y, &z, &t);}
   scanf("%c",&sure2);
   if((sure2=='y')||(sure2=='Y'))
     {
         tpMark.rbx=rb_x;
	       tpMark.rby=rb_y;
         break;
     }
   else{rb_x=0; rb_y=0;}
   }
   //point_3
   mymousedev.Close();

}

static void savedata()
{
 if((tpmap=fopen("tpconfigure","wb+"))==NULL)       
            {
              printf("can't open the config file!\n");
             
	      tpMark.ltx=1719;
	      tpMark.lty=480;
	      tpMark.rbx=314;
	      tpMark.rby=3666;
	      if(fwrite(&tpMark,sizeof(int),4,tpmap)!=4)
              { printf("file write error,can't initial touchpad!\n");	}
	      	
            }
	else
	    {
	       if(fwrite(&tpMark,sizeof(int),4,tpmap)!=4)
               { printf("file write error,can't initial touchpad!\n");	}
	    }
	fclose(tpmap); 
}

MOUSEDEVICE mymousedev = {
	Open,
	Close,
	GetButtonInfo,
	GetDefaultAccel,
	Read,
	NULL,
#ifdef S3C44B0_ADS7843_MOUSE
	MOUSE_NORMAL
#else
	MOUSE_TRANSFORM   /* Input filter flags */
#endif
};