display.h

00001 #include <stdint.h>
00002 // Define a macro to allow easy definition of colours
00003 // Format of colour value: <BGND 1 bit><Red 5 bits><Green 5 bits><Blue 5 bits>
00004 
00005 #define SCREEN_WIDTH 240
00006 #define SCREEN_HEIGHT 320
00007 #define Y_TOUCH_MAX 1952
00008 #define Y_TOUCH_MIN 88
00009 #define X_TOUCH_MAX 1920
00010 #define X_TOUCH_MIN 112
00011 class Display {
00012 public:        
00013     Display() {};
00014     void begin();
00015     void putPixel(uint16_t x, uint16_t y, uint16_t colour);    
00016     void putImage(uint16_t x, uint16_t y, uint16_t width, uint16_t height, const uint16_t *Image);
00017     void fillRectangle(uint16_t x, uint16_t y, uint16_t width, uint16_t height, uint16_t Colour);
00018     uint16_t RGBToWord(uint16_t R, uint16_t G, uint16_t B);
00019     void drawLine(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t Colour);
00020     void drawRectangle(uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint16_t Colour);
00021     void drawCircle(uint16_t x0, uint16_t y0, uint16_t radius, uint16_t Colour);
00022     void fillCircle(uint16_t x0, uint16_t y0, uint16_t radius, uint16_t Colour);
00023     // Graphics text functions
00024     void print(const char *Text, uint16_t len, uint16_t x, uint16_t y, uint16_t ForeColour, uint16_t BackColour);
00025     void print(uint16_t Number, uint16_t x, uint16_t y, uint16_t ForeColour, uint16_t BackColour); 
00026     int penDown(void);
00027     uint16_t readYTouch(void);
00028     uint16_t readXTouch(void);
00029 private:
00030 
00031     void CommandMode();
00032     void DataMode();
00033     void LCD_Write_Cmd(uint8_t cmd);
00034     void LCD_Write_Data(uint8_t data);
00035     void resetDisplay();
00036     void openAperture(uint16_t x1,uint16_t y1,uint16_t x2,uint16_t y2);
00037     void drawLineLowSlope(uint16_t x0, uint16_t y0, uint16_t x1,uint16_t y1, uint16_t Colour);
00038     void drawLineHighSlope(uint16_t x0, uint16_t y0, uint16_t x1,uint16_t y1, uint16_t Colour);
00039     int iabs(int x) // simple integer version of abs for use by graphics functions
00040     {
00041         if (x < 0)
00042             return -x;
00043         else
00044             return x;
00045     }
00046     void initTouch(void);
00047     
00048 
00049 };