Marijn Romeijn / Adafruit_GFX

Adafruit GFX with some tweaks

Fork of Adafruit_GFX by Neal Horman

Adafruit_GFX.h@2:7bcea45e60d8, 2012-08-19 (annotated)

Committer:
nkhorman
Date:
Sun Aug 19 23:03:40 2012 +0000
Revision:
2:7bcea45e60d8
Parent:
1:9db12505727a
Child:
9:ddb97c9850a2
change swap() from a define to a static inline function to quell compiler problems.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nkhorman 2:7bcea45e60d8 1 /***********************************
nkhorman 2:7bcea45e60d8 2 This is a our graphics core library, for all our displays.
nkhorman 2:7bcea45e60d8 3 We'll be adapting all the
nkhorman 2:7bcea45e60d8 4 existing libaries to use this core to make updating, support
nkhorman 2:7bcea45e60d8 5 and upgrading easier!
nkhorman 2:7bcea45e60d8 6
nkhorman 2:7bcea45e60d8 7 Adafruit invests time and resources providing this open source code,
nkhorman 2:7bcea45e60d8 8 please support Adafruit and open-source hardware by purchasing
nkhorman 2:7bcea45e60d8 9 products from Adafruit!
nkhorman 2:7bcea45e60d8 10
nkhorman 2:7bcea45e60d8 11 Written by Limor Fried/Ladyada for Adafruit Industries.
nkhorman 2:7bcea45e60d8 12 BSD license, check license.txt for more information
nkhorman 2:7bcea45e60d8 13 All text above must be included in any redistribution
nkhorman 2:7bcea45e60d8 14 ****************************************/
nkhorman 2:7bcea45e60d8 15
nkhorman 2:7bcea45e60d8 16 /*
nkhorman 2:7bcea45e60d8 17 * Modified by Neal Horman 7/14/2012 for use in LPC1768
nkhorman 2:7bcea45e60d8 18 */
nkhorman 2:7bcea45e60d8 19
nkhorman 2:7bcea45e60d8 20 #ifndef _ADAFRUIT_GFX_H_
nkhorman 2:7bcea45e60d8 21 #define _ADAFRUIT_GFX_H_
nkhorman 2:7bcea45e60d8 22
nkhorman 2:7bcea45e60d8 23 static inline void swap(int16_t &a, int16_t &b)
nkhorman 2:7bcea45e60d8 24 {
nkhorman 2:7bcea45e60d8 25 int16_t t = a;
nkhorman 2:7bcea45e60d8 26
nkhorman 2:7bcea45e60d8 27 a = b;
nkhorman 2:7bcea45e60d8 28 b = t;
nkhorman 2:7bcea45e60d8 29 }
nkhorman 2:7bcea45e60d8 30
nkhorman 2:7bcea45e60d8 31 #ifndef _BV
nkhorman 2:7bcea45e60d8 32 #define _BV(bit) (1<<(bit))
nkhorman 2:7bcea45e60d8 33 #endif
nkhorman 2:7bcea45e60d8 34
nkhorman 2:7bcea45e60d8 35 #define BLACK 0
nkhorman 2:7bcea45e60d8 36 #define WHITE 1
nkhorman 2:7bcea45e60d8 37
nkhorman 2:7bcea45e60d8 38 class Adafruit_GFX : public Stream
nkhorman 2:7bcea45e60d8 39 {
nkhorman 2:7bcea45e60d8 40 public:
nkhorman 2:7bcea45e60d8 41 Adafruit_GFX(int16_t w, int16_t h)
nkhorman 2:7bcea45e60d8 42 : _rawWidth(w)
nkhorman 2:7bcea45e60d8 43 , _rawHeight(h)
nkhorman 2:7bcea45e60d8 44 , _width(w)
nkhorman 2:7bcea45e60d8 45 , _height(h)
nkhorman 2:7bcea45e60d8 46 , cursor_x(0)
nkhorman 2:7bcea45e60d8 47 , cursor_y(0)
nkhorman 2:7bcea45e60d8 48 , textcolor(WHITE)
nkhorman 2:7bcea45e60d8 49 , textbgcolor(BLACK)
nkhorman 2:7bcea45e60d8 50 , textsize(1)
nkhorman 2:7bcea45e60d8 51 , rotation(0)
nkhorman 2:7bcea45e60d8 52 , wrap(true)
nkhorman 2:7bcea45e60d8 53 {};
nkhorman 2:7bcea45e60d8 54
nkhorman 2:7bcea45e60d8 55 // this must be defined by the subclass
nkhorman 2:7bcea45e60d8 56 virtual void drawPixel(int16_t x, int16_t y, uint16_t color) = 0;
nkhorman 2:7bcea45e60d8 57 // this is optional
nkhorman 2:7bcea45e60d8 58 virtual void invertDisplay(bool i) {};
nkhorman 2:7bcea45e60d8 59
nkhorman 2:7bcea45e60d8 60 // Stream implementation - provides printf() interface
nkhorman 2:7bcea45e60d8 61 // You would otherwise be forced to use writeChar()
nkhorman 2:7bcea45e60d8 62 virtual int _putc(int value) { return writeChar(value); };
nkhorman 2:7bcea45e60d8 63 virtual int _getc() { return -1; };
nkhorman 2:7bcea45e60d8 64
nkhorman 2:7bcea45e60d8 65 #ifdef WANT_ABSTRACTS
nkhorman 2:7bcea45e60d8 66 // these are 'generic' drawing functions, so we can share them!
nkhorman 2:7bcea45e60d8 67 virtual void drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color);
nkhorman 2:7bcea45e60d8 68 virtual void drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
nkhorman 2:7bcea45e60d8 69 virtual void drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
nkhorman 2:7bcea45e60d8 70 virtual void drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
nkhorman 2:7bcea45e60d8 71 virtual void fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
nkhorman 2:7bcea45e60d8 72 virtual void fillScreen(uint16_t color);
nkhorman 2:7bcea45e60d8 73
nkhorman 2:7bcea45e60d8 74 void drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
nkhorman 2:7bcea45e60d8 75 void drawCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, uint16_t color);
nkhorman 2:7bcea45e60d8 76 void fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
nkhorman 2:7bcea45e60d8 77 void fillCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, int16_t delta, uint16_t color);
nkhorman 2:7bcea45e60d8 78
nkhorman 2:7bcea45e60d8 79 void drawTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color);
nkhorman 2:7bcea45e60d8 80 void fillTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color);
nkhorman 2:7bcea45e60d8 81 void drawRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, int16_t radius, uint16_t color);
nkhorman 2:7bcea45e60d8 82 void fillRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, int16_t radius, uint16_t color);
nkhorman 2:7bcea45e60d8 83 #endif
nkhorman 2:7bcea45e60d8 84
nkhorman 2:7bcea45e60d8 85 void drawBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t color);
nkhorman 2:7bcea45e60d8 86 void drawChar(int16_t x, int16_t y, unsigned char c, uint16_t color, uint16_t bg, uint8_t size);
nkhorman 2:7bcea45e60d8 87 size_t writeChar(uint8_t);
nkhorman 2:7bcea45e60d8 88
nkhorman 2:7bcea45e60d8 89 int16_t width(void) { return _width; };
nkhorman 2:7bcea45e60d8 90 int16_t height(void) { return _height; };
nkhorman 2:7bcea45e60d8 91
nkhorman 2:7bcea45e60d8 92 void setCursor(int16_t x, int16_t y) { cursor_x = x; cursor_y = y; };
nkhorman 2:7bcea45e60d8 93 void setTextSize(uint8_t s) { textsize = (s > 0) ? s : 1; };
nkhorman 2:7bcea45e60d8 94 void setTextColor(uint16_t c) { textcolor = c; textbgcolor = c; }
nkhorman 2:7bcea45e60d8 95 void setTextColor(uint16_t c, uint16_t b) { textcolor = c; textbgcolor = b; };
nkhorman 2:7bcea45e60d8 96 void setTextWrap(bool w) { wrap = w; };
nkhorman 2:7bcea45e60d8 97
nkhorman 2:7bcea45e60d8 98 void setRotation(uint8_t r);
nkhorman 2:7bcea45e60d8 99 uint8_t getRotation(void) { rotation %= 4; return rotation; };
nkhorman 2:7bcea45e60d8 100
nkhorman 2:7bcea45e60d8 101 protected:
nkhorman 2:7bcea45e60d8 102 int16_t _rawWidth, _rawHeight; // this is the 'raw' display w/h - never changes
nkhorman 2:7bcea45e60d8 103 int16_t _width, _height; // dependent on rotation
nkhorman 2:7bcea45e60d8 104 int16_t cursor_x, cursor_y;
nkhorman 2:7bcea45e60d8 105 uint16_t textcolor, textbgcolor;
nkhorman 2:7bcea45e60d8 106 uint8_t textsize;
nkhorman 2:7bcea45e60d8 107 uint8_t rotation;
nkhorman 2:7bcea45e60d8 108 bool wrap; // If set, 'wrap' text at right edge of display
nkhorman 2:7bcea45e60d8 109 };
nkhorman 2:7bcea45e60d8 110
nkhorman 2:7bcea45e60d8 111 #endif