main.cpp

00001 #include "mbed.h"
00002 #include "TS_DISCO_F746NG.h"
00003 #include "LCD_DISCO_F746NG.h"
00004 
00005 LCD_DISCO_F746NG lcd;
00006 TS_DISCO_F746NG ts;
00007 
00008 int main()
00009 {
00010     TS_StateTypeDef TS_State;
00011     uint16_t x, y;
00012     uint8_t text[30];
00013     uint8_t status;
00014     uint8_t idx;
00015     uint8_t cleared = 0;
00016     uint8_t prev_nb_touches = 0;
00017 
00018     lcd.DisplayStringAt(0, LINE(5), (uint8_t *)"TOUCHSCREEN DEMO", CENTER_MODE);
00019     wait(1);
00020 
00021     status = ts.Init(lcd.GetXSize(), lcd.GetYSize());
00022     if (status != TS_OK) {
00023         lcd.Clear(LCD_COLOR_RED);
00024         lcd.SetBackColor(LCD_COLOR_RED);
00025         lcd.SetTextColor(LCD_COLOR_WHITE);
00026         lcd.DisplayStringAt(0, LINE(5), (uint8_t *)"TOUCHSCREEN INIT FAIL", CENTER_MODE);
00027     } else {
00028         lcd.Clear(LCD_COLOR_GREEN);
00029         lcd.SetBackColor(LCD_COLOR_GREEN);
00030         lcd.SetTextColor(LCD_COLOR_WHITE);
00031         lcd.DisplayStringAt(0, LINE(5), (uint8_t *)"TOUCHSCREEN INIT OK", CENTER_MODE);
00032     }
00033 
00034     wait(1);
00035     lcd.SetFont(&Font12);
00036     lcd.SetBackColor(LCD_COLOR_BLUE);
00037     lcd.SetTextColor(LCD_COLOR_WHITE);
00038 
00039     while(1) {
00040 
00041         ts.GetState(&TS_State);
00042         if (TS_State.touchDetected) {
00043             // Clear lines corresponding to old touches coordinates
00044             if (TS_State.touchDetected < prev_nb_touches) {
00045                 for (idx = (TS_State.touchDetected + 1); idx <= 5; idx++) {
00046                     lcd.ClearStringLine(idx);
00047                 }
00048             }
00049             prev_nb_touches = TS_State.touchDetected;
00050 
00051             cleared = 0;
00052 
00053             sprintf((char*)text, "Touches: %d", TS_State.touchDetected);
00054             lcd.DisplayStringAt(0, LINE(0), (uint8_t *)&text, LEFT_MODE);
00055 
00056             for (idx = 0; idx < TS_State.touchDetected; idx++) {
00057                 x = TS_State.touchX[idx];
00058                 y = TS_State.touchY[idx];
00059                 sprintf((char*)text, "Touch %d: x=%d y=%d    ", idx+1, x, y);
00060                 lcd.SetTextColor(LCD_COLOR_WHITE);
00061                 lcd.DisplayStringAt(0, LINE(idx+1), (uint8_t *)&text, LEFT_MODE);
00062                 lcd.SetTextColor(LCD_COLOR_YELLOW);
00063                 lcd.DrawCircle(x, y, 20);
00064             }
00065 
00066         } else {
00067             if (!cleared) {
00068                 lcd.Clear(LCD_COLOR_BLUE);
00069                 sprintf((char*)text, "Touches: 0");
00070                 lcd.SetTextColor(LCD_COLOR_WHITE);
00071                 lcd.DisplayStringAt(0, LINE(0), (uint8_t *)&text, LEFT_MODE);
00072                 cleared = 1;
00073             }
00074         }
00075     }
00076 }