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/**
******************************************************************************
* @file BSP/Src/touchscreen.c
* @author MCD Application Team
* @brief This example code shows how to use the touchscreen driver.
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/** @addtogroup STM32F4xx_HAL_Examples
* @{
*/
/** @addtogroup BSP
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define CIRCLE_RADIUS 30
/* Private macro -------------------------------------------------------------*/
#define CIRCLE_XPOS(i) ((i * BSP_LCD_GetXSize()) / 5)
#define CIRCLE_YPOS(i) (BSP_LCD_GetYSize() - CIRCLE_RADIUS - 60)
/* Private variables ---------------------------------------------------------*/
static TS_StateTypeDef TS_State;
/* Private function prototypes -----------------------------------------------*/
static void Touchscreen_SetHint(uint8_t exti_vs_polling);
static void Touchscreen_DrawBackground (uint8_t state);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Touchscreen Polling Demo
* @param None
* @retval None
*/
void Touchscreen_polling_demo(void)
{
uint16_t x,y;
uint8_t status = 0;
uint8_t state = 0;
if(IsCalibrationDone() == 0)
{
Touchscreen_Calibration();
}
Touchscreen_SetHint(0);
status = BSP_TS_Init(BSP_LCD_GetXSize(), BSP_LCD_GetYSize());
if (status != TS_OK)
{
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 95, (uint8_t *)"ERROR", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, BSP_LCD_GetYSize()- 80, (uint8_t *)"Touchscreen cannot be initialized", CENTER_MODE);
}
else
{
Touchscreen_DrawBackground(state);
}
while (1)
{
if (status == TS_OK)
{
BSP_TS_GetState(&TS_State);
x = Calibration_GetX(TS_State.x);
y = Calibration_GetY(TS_State.y);
if((TS_State.TouchDetected) &&
(y > (CIRCLE_YPOS(1) - CIRCLE_RADIUS))&&
(y < (CIRCLE_YPOS(1) + CIRCLE_RADIUS)))
{
if((x > (CIRCLE_XPOS(1) - CIRCLE_RADIUS))&&
(x < (CIRCLE_XPOS(1) + CIRCLE_RADIUS)))
{
if((state & 1) == 0)
{
Touchscreen_DrawBackground(state);
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_FillCircle(CIRCLE_XPOS(1), CIRCLE_YPOS(1), CIRCLE_RADIUS);
state = 1;
}
}
if((x > (CIRCLE_XPOS(2) - CIRCLE_RADIUS))&&
(x < (CIRCLE_XPOS(2) + CIRCLE_RADIUS)))
{
if((state & 2) == 0)
{
Touchscreen_DrawBackground(state);
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_FillCircle(CIRCLE_XPOS(2), CIRCLE_YPOS(2), CIRCLE_RADIUS);
state = 2;
}
}
if((x > (CIRCLE_XPOS(3) - CIRCLE_RADIUS))&&
(x < (CIRCLE_XPOS(3) + CIRCLE_RADIUS)))
{
if((state & 4) == 0)
{
Touchscreen_DrawBackground(state);
BSP_LCD_SetTextColor(LCD_COLOR_YELLOW);
BSP_LCD_FillCircle(CIRCLE_XPOS(3), CIRCLE_YPOS(3), CIRCLE_RADIUS);
state = 4;
}
}
if((x > (CIRCLE_XPOS(4) - CIRCLE_RADIUS))&&
(x < (CIRCLE_XPOS(4) + CIRCLE_RADIUS)))
{
if((state & 8) == 0)
{
Touchscreen_DrawBackground(state);
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_FillCircle(CIRCLE_XPOS(4), CIRCLE_YPOS(3), CIRCLE_RADIUS);
state = 8;
}
}
}
}
if(CheckForUserInput() > 0)
{
return;
}
HAL_Delay(50);
}
}
/**
* @brief Display TS Demo Hint
* @param None
* @retval None
*/
static void Touchscreen_SetHint(uint8_t exti_vs_polling)
{
/* Clear the LCD */
BSP_LCD_Clear(LCD_COLOR_WHITE);
/* Set Touchscreen Demo description */
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_FillRect(0, 0, BSP_LCD_GetXSize(), 80);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_SetFont(&Font24);
if (exti_vs_polling == 0)
{
BSP_LCD_DisplayStringAt(0, 0, (uint8_t *)"Touchscreen", CENTER_MODE);
}
else
{
BSP_LCD_DisplayStringAt(0, 0, (uint8_t *)"Touchscreen Exti", CENTER_MODE);
}
BSP_LCD_SetFont(&Font12);
BSP_LCD_DisplayStringAt(0, 30, (uint8_t *)"Please use the Touchscreen to", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, 45, (uint8_t *)"activate the colored circle", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, 60, (uint8_t *)"inside the rectangle", CENTER_MODE);
/* Set the LCD Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_DrawRect(10, 90, BSP_LCD_GetXSize() - 20, BSP_LCD_GetYSize()- 100);
BSP_LCD_DrawRect(11, 91, BSP_LCD_GetXSize() - 22, BSP_LCD_GetYSize()- 102);
}
/**
* @brief Draw Touchscreen Background
* @param state : touch zone state
* @retval None
*/
static void Touchscreen_DrawBackground (uint8_t state)
{
switch(state)
{
case 0:
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_FillCircle(CIRCLE_XPOS(1), CIRCLE_YPOS(1), CIRCLE_RADIUS);
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_FillCircle(CIRCLE_XPOS(2), CIRCLE_YPOS(2), CIRCLE_RADIUS);
BSP_LCD_SetTextColor(LCD_COLOR_YELLOW);
BSP_LCD_FillCircle(CIRCLE_XPOS(3), CIRCLE_YPOS(3), CIRCLE_RADIUS);
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_FillCircle(CIRCLE_XPOS(4), CIRCLE_YPOS(3), CIRCLE_RADIUS);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
BSP_LCD_FillCircle(CIRCLE_XPOS(1), CIRCLE_YPOS(1), CIRCLE_RADIUS - 2);
BSP_LCD_FillCircle(CIRCLE_XPOS(2), CIRCLE_YPOS(2), CIRCLE_RADIUS - 2);
BSP_LCD_FillCircle(CIRCLE_XPOS(3), CIRCLE_YPOS(3), CIRCLE_RADIUS - 2);
BSP_LCD_FillCircle(CIRCLE_XPOS(4), CIRCLE_YPOS(3), CIRCLE_RADIUS - 2);
break;
case 1:
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_FillCircle(CIRCLE_XPOS(1), CIRCLE_YPOS(1), CIRCLE_RADIUS);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
BSP_LCD_FillCircle(CIRCLE_XPOS(1), CIRCLE_YPOS(1), CIRCLE_RADIUS - 2);
break;
case 2:
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_FillCircle(CIRCLE_XPOS(2), CIRCLE_YPOS(2), CIRCLE_RADIUS);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
BSP_LCD_FillCircle(CIRCLE_XPOS(2), CIRCLE_YPOS(2), CIRCLE_RADIUS - 2);
break;
case 4:
BSP_LCD_SetTextColor(LCD_COLOR_YELLOW);
BSP_LCD_FillCircle(CIRCLE_XPOS(3), CIRCLE_YPOS(3), CIRCLE_RADIUS);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
BSP_LCD_FillCircle(CIRCLE_XPOS(3), CIRCLE_YPOS(3), CIRCLE_RADIUS - 2);
break;
case 8:
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_FillCircle(CIRCLE_XPOS(4), CIRCLE_YPOS(4), CIRCLE_RADIUS);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
BSP_LCD_FillCircle(CIRCLE_XPOS(4), CIRCLE_YPOS(4), CIRCLE_RADIUS - 2);
break;
}
}
/**
* @}
*/
/**
* @}
*/
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