/*********************************************************************
*
* MainTask
*/
void TOUCH_MainTask(void) {
int aPhysX[2], aPhysY[2], aLogX[2], aLogY[2], i;
GUI_Init();
GUI_SetBkColor(GUI_WHITE);
GUI_Clear();
GUI_SetColor(GUI_BLACK);
GUI_SetFont(&GUI_Font13B_ASCII);
_Explain();
/* Set the logical values */
aLogX[0] = 15;
aLogY[0] = 15;
aLogX[1] = LCD_GetXSize() - 15;
aLogY[1] = LCD_GetYSize() - 15;
/* Get the physical values of the AD converter for 2 positions */
for (i = 0; i < 2; i++) {
_GetPhysValues(aLogX[i], aLogY[i], &aPhysX[i], &aPhysY[i], _acPos[i]);
}
/* Use the physical values to calibrate the touch screen */
GUI_TOUCH_Calibrate(0, aLogX[0], aLogX[1], aPhysX[0], aPhysX[1]); /* Calibrate X-axis */
GUI_TOUCH_Calibrate(1, aLogY[0], aLogY[1], aPhysY[0], aPhysY[1]); /* Calibrate Y-axis */
/* Display the result */
GUI_CURSOR_Show();
GUI_Clear();
_DispStringCentered("Congratulation, your\n"
"touch screen has been\n"
"calibrated. Please use\n"
"the cursor to test\n"
"the calibration...");
/* Let the user play */
GUI_Delay(50);
}
/**
* @brief Initialization of calibration
* @param None.
* @retval None
*/
void k_CalibrationInit(void)
{
int aPhysX[2], aPhysY[2], aLogX[2], aLogY[2], i;
data1.d32 = k_BkupRestoreParameter(RTC_BKP_DR0);
data2.d32 = k_BkupRestoreParameter(RTC_BKP_DR1);
A2 = data2.b.A2;
B2 = data2.b.B2;
A1 = data1.b.A1;
B1 = data1.b.B1;
if(data2.b.IsCalibrated == 0)
{
GUI_SetBkColor(GUI_WHITE);
GUI_Clear();
GUI_SetColor(GUI_BLACK);
GUI_SetFont(&GUI_Font13B_ASCII);
_Explain();
/* Set the logical values */
aLogX[0] = 15;
aLogY[0] = 15;
aLogX[1] = LCD_GetXSize() - 15;
aLogY[1] = LCD_GetYSize() - 15;
/* Get the physical values of the AD converter for 2 positions */
for (i = 0; i < 2; i++) {
_GetPhysValues(aLogX[i], aLogY[i], &aPhysX[i], &aPhysY[i], _acPos[i]);
}
/* Use the physical values to calibrate the touch screen */
A1 = (1000 * ( aLogX[1] - aLogX[0]))/ ( aPhysX[1] - aPhysX[0]);
B1 = (1000 * aLogX[0]) - A1 * aPhysX[0];
A2 = (1000 * ( aLogY[1] - aLogY[0]))/ ( aPhysY[1] - aPhysY[0]);
B2 = (1000 * aLogY[0]) - A2 * aPhysY[0];
data1.b.A1 = A1;
data1.b.B1 = B1;
k_BkupSaveParameter(RTC_BKP_DR0, data1.d32);
data2.b.A2 = A2;
data2.b.B2 = B2;
data2.b.IsCalibrated = 1;
k_BkupSaveParameter(RTC_BKP_DR1, data2.d32);
/* Display the result */
GUI_Clear();
_DispStringCentered("Touch screen has been\n"
"calibrated. Please use\n"
"the cursor to test\n"
"the calibration...");
}
CALIBRATION_Done = 1;
GUI_Delay(1000);
}
/********************************************************************
*
* _Explain
*
* Purpose:
* Shows a text to give a short explanation of the sample program
*/
static void _Explain(void) {
_DispStringCentered("At first time, you need to\n"
"calibrate the Touch screen\n"
"Please press the touch\n"
"screen to continue...");
GUI_DispStringHCenterAt("Touch screen Calibration", LCD_GetXSize() / 2, 5);
_WaitForPressedState(1);
_WaitForPressedState(0);
}
/********************************************************************
*
* _Explain
*
* Funtion description
* Shows a text to give a short explanation of the sample program
*/
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);
_WaitForPressedState(1);
_WaitForPressedState(0);
}
/*********************************************************************
*
* _GetPhysValues
*
* Function description
* Asks the user to press the touch screen at the given position
* and returns the physical A/D values
*/
static void _GetPhysValues(int LogX, int LogY, int * pPhysX, int * pPhysY, const char * pString) {
char acText[] = "Press here";
GUI_RECT Rect;
int FontSizeY;
int 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
//
_WaitForPressedState(1);
*pPhysX = GUI_TOUCH_GetxPhys();
*pPhysY = GUI_TOUCH_GetyPhys();
//
// Wait until touch is released
//
_WaitForPressedState(0);
}
/*********************************************************************
*
* _GetPhysValues
*
* Purpose:
* Asks the user to press the touch screen at the given position
* and returns the physical pixels(A/D) values
*/
static void _GetPhysValues(int LogX, int LogY, int * pPhysX, int * pPhysY, const char * pString) {
char acText[] = "Press here";
GUI_RECT Rect;
GUI_PID_STATE State;
int FontSizeY, Align;
FontSizeY = GUI_GetFontSizeY(); /*获取字体的高度*/
GUI_Clear();
GUI_SetColor(GUI_BLACK);
_DispStringCentered("Runtime calibration,\n"
"please touch the corners of the screen\n"
"at the center of the rings."); /* Ask user to press the touch */
/* Calculate the rectangle for the string(根据触摸点的位置，设置文字显示的区域) */
if (LogX < LCD_GetXSize() / 2) {/*判断是左上角的点，还是有下角的点*/
Rect.x0 = LogX + 25;
Rect.x1 = LCD_GetXSize();
Rect.y0 = LogY - FontSizeY + 5; /*设置大小能显示两行字符*/
Rect.y1 = LogY + FontSizeY + 5;
Align = GUI_TA_LEFT;
} else {
Rect.x0 = 0;
Rect.x1 = LogX - 25;
Rect.y0 = LogY - FontSizeY - 5;
Rect.y1 = LogY + FontSizeY - 5;
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, 7);
GUI_SetColor(GUI_BLACK);
/* Wait until touch is pressed */
_WaitForPressedState(1);
/*得到触摸点的值*/
GUI_TOUCH_GetState(&State);
*pPhysX = State.x;
*pPhysY = State.y;
/* Wait until touch is released */
_WaitForPressedState(0);
}
/*********************************************************************
*
* MainTask
*/
void MainTask_TOUCHCAL(void) {
int aPhysX[2], aPhysY[2], aLogX[2], aLogY[2], i;
GUI_Init();
GUI_SetBkColor(GUI_WHITE);
GUI_Clear();
GUI_SetColor(GUI_BLACK);
GUI_SetFont(&GUI_Font13B_ASCII);
_Explain();
/* Set the logical values */
aLogX[0] = 15;
aLogY[0] = 15;
aLogX[1] = LCD_GetXSize() - 15;
aLogY[1] = LCD_GetYSize() - 15;
/* Get the physical values of the AD converter for 2 positions */
for (i = 0; i < 2; i++) {
_GetPhysValues(aLogX[i], aLogY[i], &aPhysX[i], &aPhysY[i], _acPos[i]);
}
/* Use the physical values to calibrate the touch screen */
GUI_TOUCH_Calibrate(0, aLogX[0], aLogX[1], aPhysX[0], aPhysX[1]); /* Calibrate X-axis */ //如果我们要存到外部存储器中 那么就存储这里的8个参数
GUI_TOUCH_Calibrate(1, aLogY[0], aLogY[1], aPhysY[0], aPhysY[1]); /* Calibrate Y-axis */
/* Display the result */
GUI_CURSOR_Show();
GUI_Clear();
_DispStringCentered("Congratulation, your\n"
"touch screen has been\n"
"calibrated. Please use\n"
"the cursor to test\n"
"the calibration...");
/* Let the user play */
while(1) {
GUI_PID_STATE State;
GUI_TOUCH_GetState(&State);
if (State.Pressed == 1) {
GUI_FillCircle(State.x, State.y, 3);
}
GUI_Delay(10);
}
}
/*********************************************************************
*
* MainTask
*/
void CALIBRATION_Check(void)
{
int aPhysX[2], aPhysY[2], aLogX[2], aLogY[2], i;
// data1.d32 = BACKUP_RestoreParameter(RTC_BKP_DR0);
// data2.d32 = BACKUP_RestoreParameter(RTC_BKP_DR1);
data1.d32 = 0;
data2.d32 = 0;
A2 = data2.b.A2 ;
B2 = data2.b.B2 ;
A1 = data1.b.A1 ;
B1 = data1.b.B1 ;
if(data2.b.IsCalibrated == 0) /*触摸没有计算*/
{
GUI_SetBkColor(GUI_WHITE);
GUI_Clear();
GUI_SetColor(GUI_BLACK);
GUI_SetFont(&GUI_Font20B_ASCII);
_Explain(); /*显示explain文字*/
/* Set the logical values 在什么地方画圆，设置触摸点(15,15)(X-15,Y-15)两点 */
aLogX[0] = 15;
aLogY[0] = 15;
aLogX[1] = LCD_GetXSize() - 15;
aLogY[1] = LCD_GetYSize() - 15;
/* Get the physical values of the AD converter for 2 positions */
for (i = 0; i < 2; i++) {
_GetPhysValues(aLogX[i], aLogY[i], &aPhysX[i], &aPhysY[i], _acPos[i]);
}
/* Use the physical values to calibrate the touch screen */
A1 = (1000 * ( aLogX[1] - aLogX[0]))/ ( aPhysX[1] - aPhysX[0]);
B1 = (1000 * aLogX[0]) - A1 * aPhysX[0];
A2 = (1000 * ( aLogY[1] - aLogY[0]))/ ( aPhysY[1] - aPhysY[0]);
B2 = (1000 * aLogY[0]) - A2 * aPhysY[0];
data1.b.A1 = A1;
data1.b.B1 = B1;
// BACKUP_SaveParameter(RTC_BKP_DR0, data1.d32);
data2.b.A2 = A2;
data2.b.B2 = B2;
data2.b.IsCalibrated = 1;
// BACKUP_SaveParameter(RTC_BKP_DR1, data2.d32);
/* Display the result */
GUI_CURSOR_Show(); /*显示光标*/
GUI_Clear();
_DispStringCentered("Touch screen has been\n"
"calibrated. Please use\n"
"the cursor to test\n"
"the calibration...");
}
CALIBRATION_Done = 1;
GUI_Delay(1000);
}
