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857de7f Jul 2, 2013
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/******************************************************************
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.
02/18/2013 Charles-Henri Hallard (http://hallard.me)
Modified for compiling and use on Raspberry ArduiPi Board
LCD size and connection are now passed as arguments on
the command line (no more #define on compilation needed)
ArduiPi project documentation http://hallard.me/arduipi
******************************************************************/
#ifndef _ADAFRUIT_GFX_H
#define _ADAFRUIT_GFX_H
#define swap(a, b) { int16_t t = a; a = b; b = t; }
//class Adafruit_GFX : public Print {
class Adafruit_GFX {
public:
//Adafruit_GFX();
// i have no idea why we have to formally call the constructor. kinda sux
void constructor(int16_t w, int16_t h);
// this must be defined by the subclass
virtual void drawPixel(int16_t x, int16_t y, uint16_t color);
virtual void invertDisplay(boolean i);
// the printf function
void printf( const char * format, ...);
void print( const char * string) ;
// these are 'generic' drawing functions, so we can share them!
virtual 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);
void drawVerticalBargraph(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color, uint16_t percent) ;
void drawHorizontalBargraph(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color, uint16_t percent) ;
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);
virtual size_t write(uint8_t);
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:
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