main.cpp

00001 #include "mbed.h"
00002 #include "TS_DISCO_F469NI.h"
00003 #include "LCD_DISCO_F469NI.h"
00004 
00005 LCD_DISCO_F469NI lcd;
00006 TS_DISCO_F469NI 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     BSP_LCD_SetFont(&Font24);
00019   
00020     lcd.DisplayStringAt(0, LINE(5), (uint8_t *)"TOUCHSCREEN DEMO", CENTER_MODE);
00021     wait(1);
00022   
00023     status = ts.Init(lcd.GetXSize(), lcd.GetYSize());
00024     if (status != TS_OK)
00025     {
00026       lcd.Clear(LCD_COLOR_RED);
00027       lcd.SetBackColor(LCD_COLOR_RED);
00028       lcd.SetTextColor(LCD_COLOR_WHITE);
00029       lcd.DisplayStringAt(0, LINE(5), (uint8_t *)"TOUCHSCREEN INIT FAIL", CENTER_MODE);
00030     }
00031     else
00032     {
00033       lcd.Clear(LCD_COLOR_GREEN);
00034       lcd.SetBackColor(LCD_COLOR_GREEN);
00035       lcd.SetTextColor(LCD_COLOR_WHITE);
00036       lcd.DisplayStringAt(0, LINE(5), (uint8_t *)"TOUCHSCREEN INIT OK", CENTER_MODE);      
00037     }
00038 
00039     wait(1);
00040     lcd.SetBackColor(LCD_COLOR_BLUE);
00041     lcd.SetTextColor(LCD_COLOR_WHITE);
00042     
00043     while(1)
00044     {
00045       
00046       ts.GetState(&TS_State);      
00047       if (TS_State.touchDetected)
00048       {
00049         // Clear lines corresponding to old touches coordinates
00050         if (TS_State.touchDetected < prev_nb_touches)
00051         {
00052           for (idx = (TS_State.touchDetected + 1); idx <= 5; idx++)
00053           {
00054             lcd.ClearStringLine(idx);
00055           }
00056         }
00057         prev_nb_touches = TS_State.touchDetected;
00058         
00059         cleared = 0;
00060         
00061         sprintf((char*)text, "Touches: %d", TS_State.touchDetected);
00062         lcd.DisplayStringAt(0, LINE(0), (uint8_t *)&text, LEFT_MODE);
00063         
00064         for (idx = 0; idx < TS_State.touchDetected; idx++)
00065         {
00066           x = TS_State.touchX[idx];
00067           y = TS_State.touchY[idx];
00068           sprintf((char*)text, "Touch %d: x=%d y=%d    ", idx+1, x, y);
00069           lcd.DisplayStringAt(0, LINE(idx+1), (uint8_t *)&text, LEFT_MODE);
00070           lcd.FillCircle(TS_State.touchX[idx], TS_State.touchY[idx], 20);
00071         }
00072       }
00073       else
00074       {
00075         if (!cleared)
00076         {
00077           lcd.Clear(LCD_COLOR_BLUE);
00078           sprintf((char*)text, "Touches: 0");
00079           lcd.DisplayStringAt(0, LINE(0), (uint8_t *)&text, LEFT_MODE);
00080           cleared = 1;
00081         }
00082       }
00083     }
00084 }