calibrate.c

触摸屏的校正程序。可以用于触摸屏的校正。在三星的平台上测试通过

/*--------------------------------------------------------------------------------------------------------------------
                              用于触摸屏的校准    08-8-6
-----------------------------------------------------------------------------------------------------------------------*/
#include "sysincludes.h"
#include "GUIDEMO.H"
#include "graph.h"
#include "Calibrate.h"
#include "GUI.h"
#include "GUI_X.h"
#include "WIDGET.h"
#include "../menu_item/Menu_item.h" 
#include "../menu_widget/Menu_common.h"
#include "../menu_widget/ListMenu.h"
#include "string.h"
#include "g_data.h"

#define blank_h2p(h)	(blank_obj *) WM_HMEM2Ptr(h)
static const char * _acPos[] = {
	 "(upper left position)",
	 "(lower right position)"
};
static void _WaitForPressedState(int Pressed);
static void _DispStringCentered(const char * pString);
static void _GetPhysValues(int LogX, int LogY, const char * pString);
static void _Explain(void);
static void blank_callback(WM_MESSAGE *);

static void _WaitForPressedState(int Pressed) {
	GUI_HID_STATE State;
	do {
    	GUI_TOUCH_GetState(&State);
	    if (State.Pressed == Pressed) {
    		break;
	 	}
     	GUI_Delay (100);
	 } while (1);
}

static void _DispStringCentered(const char * pString) {
	GUI_RECT Rect;
	Rect.x0 = Rect.y0 = 0;
	Rect.x1 = LCD_GetXSize() - 1;
	Rect.y1 = LCD_GetYSize() - 1;
	GUI_DispStringInRect(pString, &Rect, GUI_TA_HCENTER | GUI_TA_VCENTER);
}


static void _GetPhysValues(int LogX, int LogY, const char * pString) {
	char acText[] = "Press here";
	GUI_RECT Rect;
	int FontSizeY, Align;
	
	FontSizeY = GUI_GetFontSizeY();
	
	GUI_Clear();
	GUI_SetColor(GUI_BLACK);
	_DispStringCentered("Runtime calibration,\n"
                      "please touch the screen\n"
                      "at the center of the ring."); /* Ask user to press the touch */

	/* Calculate the rectangle for the string */
	Rect.y0 = LogY - FontSizeY;
	Rect.y1 = LogY + FontSizeY;
	if (LogX < LCD_GetXSize() / 2) {
    	Rect.x0 = LogX + 15;
	    Rect.x1 = LCD_GetXSize();
    	Align = GUI_TA_LEFT;
	} else {
    	Rect.x0 = 0;
	   Rect.x1 = LogX - 15;
    	Align = GUI_TA_RIGHT;
	}
	
	/* Show the text nearby the ring */
 	GUI_DispStringInRect(acText, &Rect, Align | GUI_TA_TOP);
 	GUI_DispStringInRect(pString, &Rect, Align | GUI_TA_BOTTOM);
	/* Draw the ring */
 	GUI_FillCircle(LogX, LogY, 10);
 	GUI_SetColor(GUI_WHITE);
	GUI_FillCircle(LogX, LogY, 5);
	GUI_SetColor(GUI_BLACK);
	
	/* Wait until touch is pressed */
	
}


static void _Explain(void) {
	_DispStringCentered("This sample shows how\n"
                      "a touch screen can be\n"
                      "calibrated at run time.\n"
                      "Please press the touch\n"
                      "screen to continue...");
	GUI_DispStringHCenterAt("TOUCH_Calibrate", LCD_GetXSize() / 2, 5);
	
}

void Calibrate(void)
{
	
 	WM_HWIN h;
	blank_obj *p;
	if (memdev == 0)
		memdev = GUI_MEMDEV_Create(0, 0, 320, 240);

	
	h = WM_CreateWindowAsChild(0, 0, 320, 240, WM_HBKWIN, WM_CF_SHOW,
		blank_callback, sizeof(blank_obj) - sizeof(WM_Obj));
	p = blank_h2p(h);
	
	/* Disable上一层窗口（并没有隐藏）。*/
	WM_HideWindow(p->widget.Win.hNextLin);

	WM_Paint(h);
	go_prev(h, (WM_Obj *)p);
			if (menu_main_window == 0) {
				GUI_MEMDEV_Delete(memdev);
				memdev = 0;
			}

}
static void blank_callback(WM_MESSAGE *msg)
{
    int aLogX = 15;int aLogY = 15;
	int aPhysX ;int aPhysY ;
	int aLogX2 = LCD_GetXSize() - 20;int aLogY2 =  LCD_GetYSize() - 20;
	int aPhysX2 ;int aPhysY2 ;
	int calx0, calx1;int caly0, caly1;
	WM_HWIN h = msg->hWin;
	blank_obj *p = blank_h2p(h);
	
	GUI_HID_STATE *state;

	switch (msg->MsgId) {
		
	case WM_PAINT:
		GUI_MEMDEV_Select(memdev);
        GUI_SetBkColor(GUI_WHITE);
     	GUI_Clear();
    	GUI_SetColor(GUI_BLACK);
    	GUI_SetFont(&GUI_Font13B_ASCII);
    	GUI_MEMDEV_CopyToLCD(memdev);
    	 _Explain();
    	GUI_MEMDEV_CopyToLCD(memdev);
    	_WaitForPressedState(1);
    	_WaitForPressedState(0);
    	_GetPhysValues(aLogX, aLogY,_acPos[0]);
    	GUI_MEMDEV_CopyToLCD(memdev);
    	_WaitForPressedState(1);
    	aPhysX = GUI_TOUCH_GetxPhys();
    	aPhysY = GUI_TOUCH_GetyPhys();
	
    	_WaitForPressedState(0);
    	
    	_GetPhysValues(aLogX2, aLogY2,_acPos[1]);
    	
    	GUI_MEMDEV_CopyToLCD(memdev);
    	_WaitForPressedState(1);
    	aPhysX2 = GUI_TOUCH_GetxPhys();
    	aPhysY2 = GUI_TOUCH_GetyPhys();
        	
    	_WaitForPressedState(0);
    	
    	GUI_Clear();
        GUI_MEMDEV_CopyToLCD(memdev);
        GUI_TOUCH_Calibrate(0, aLogX, aLogX2, aPhysX, aPhysX2);
    	GUI_TOUCH_Calibrate(1, aLogY, aLogY2, aPhysY, aPhysY2); 
        GUI_TOUCH_GetCalData(GUI_COORD_X, &calx0, &calx1);
        GUI_TOUCH_GetCalData(GUI_COORD_Y, &caly0, &caly1);
        g_calx0=calx0;g_calx1=calx1;g_caly0=caly0;g_caly1=caly1;
      
        GUI_DispStringAt("calX0: ", 0, 0); GUI_DispDec(calx0, 4); GUI_DispNextLine();
        GUI_DispString ("calX1: ");       GUI_DispDec(calx1, 4); GUI_DispNextLine();
        GUI_DispString ("calY0: ");       GUI_DispDec(caly0, 4); GUI_DispNextLine();
        GUI_DispString ("calY1: ");       GUI_DispDec(caly1, 4); 
          
        GUI_DispStringAt("lcdx0: ", 0, 100); GUI_DispDec(aLogX, 4); GUI_DispNextLine();
        GUI_DispString ("lcdx1: ");       GUI_DispDec(aLogX2, 4); GUI_DispNextLine();
        GUI_DispString ("lcdy0: ");       GUI_DispDec(aLogY, 4); GUI_DispNextLine();
        GUI_DispString ("lcdy1: ");       GUI_DispDec(aLogY2, 4); GUI_DispNextLine(); 
        
        GUI_DispString ("tscX0: ");       GUI_DispDec(aPhysX, 4); GUI_DispNextLine();
        GUI_DispString ("tscX1: ");       GUI_DispDec(aPhysX2, 4); GUI_DispNextLine();
        GUI_DispString ("tscY0: ");       GUI_DispDec(aPhysY, 4); GUI_DispNextLine();
        GUI_DispString ("tscY1: ");       GUI_DispDec(aPhysY2, 4); GUI_DispNextLine(); 
        
        GUI_DispString ("Please touch display to continue...");
        GUI_Delay(1000);
        
   
        GUI_MEMDEV_CopyToLCD(memdev);
        _WaitForPressedState(1);
        _WaitForPressedState(0);
	
		break;
	
	
	
}}