File content as of revision 2:d7b17984ea03:

/******************************************************************
 This is the core graphics library for all our displays, providing
 basic graphics primitives (points, lines, circles, etc.). It needs
 to be paired with a hardware-specific library for each display
 device we carry (handling the lower-level functions).

 Adafruit invests time and resources providing this open
 source code, please support Adafruit and open-source hardware
 by purchasing products from Adafruit!

 Written by Limor Fried/Ladyada for Adafruit Industries.
 BSD license, check license.txt for more information.
 All text above must be included in any redistribution.
 ******************************************************************/

#ifndef _ADAFRUIT_GFX_H
#define _ADAFRUIT_GFX_H

#include "mbed.h"
#include "Stream.h"


#define swap(a, b) { int16_t t = a; a = b; b = t; }
#define boolean bool

class Adafruit_GFX : public Stream
{
public:

    //Adafruit_GFX();
    Adafruit_GFX(int16_t w, int16_t h); // Constructor
    // i have no idea why we have to formally call the constructor. kinda sux
    //void constructor(int16_t w, int16_t h);

    virtual void drawPixel(int16_t x, int16_t y, uint16_t color) = 0;
    virtual void invertDisplay(boolean i);

    // these are 'generic' drawing functions, so we can share them!
    void drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1,uint16_t color);
    virtual void drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
    virtual void drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
    virtual void drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
    virtual void fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
    virtual void fillScreen(uint16_t color);

    void drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
    void drawCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, uint16_t color);
    void fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
    void fillCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, int16_t delta, uint16_t color);

    void drawTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1,int16_t x2, int16_t y2, uint16_t color);
    void fillTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color);
    void drawRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, int16_t radius, uint16_t color);
    void fillRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, int16_t radius, uint16_t color);

    void drawBitmap(int16_t x, int16_t y,
                    const uint8_t *bitmap, int16_t w, int16_t h,
                    uint16_t color);
    void drawChar(int16_t x, int16_t y, unsigned char c,
                  uint16_t color, uint16_t bg, uint8_t size);

    void setCursor(int16_t x, int16_t y);
    void setTextColor(uint16_t c);
    void setTextColor(uint16_t c, uint16_t bg);
    void setTextSize(uint8_t s);
    void setTextWrap(boolean w);

    int16_t height(void);
    int16_t width(void);

    void setRotation(uint8_t r);
    uint8_t getRotation(void);

protected:
    virtual int _putc(int value);
    virtual int _getc();
    
    const int16_t  WIDTH, HEIGHT;   // this is the 'raw' display w/h - never changes
    int16_t  _width, _height; // dependent on rotation
    int16_t  cursor_x, cursor_y;
    uint16_t textcolor, textbgcolor;
    uint8_t  textsize;
    uint8_t  rotation;
    boolean  wrap; // If set, 'wrap' text at right edge of display
};

#endif