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Dependencies:   mbed

Adafruit_GFX.h@0:cb63da12fdcc, 2019-11-26 (annotated)

Committer:
wakabanban
Date:
Tue Nov 26 04:49:45 2019 +0000
Revision:
0:cb63da12fdcc
ADC Sample

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wakabanban 0:cb63da12fdcc 1 /***********************************
wakabanban 0:cb63da12fdcc 2 This is a our graphics core library, for all our displays.
wakabanban 0:cb63da12fdcc 3 We'll be adapting all the
wakabanban 0:cb63da12fdcc 4 existing libaries to use this core to make updating, support
wakabanban 0:cb63da12fdcc 5 and upgrading easier!
wakabanban 0:cb63da12fdcc 6
wakabanban 0:cb63da12fdcc 7 Adafruit invests time and resources providing this open source code,
wakabanban 0:cb63da12fdcc 8 please support Adafruit and open-source hardware by purchasing
wakabanban 0:cb63da12fdcc 9 products from Adafruit!
wakabanban 0:cb63da12fdcc 10
wakabanban 0:cb63da12fdcc 11 Written by Limor Fried/Ladyada for Adafruit Industries.
wakabanban 0:cb63da12fdcc 12 BSD license, check license.txt for more information
wakabanban 0:cb63da12fdcc 13 All text above must be included in any redistribution
wakabanban 0:cb63da12fdcc 14 ****************************************/
wakabanban 0:cb63da12fdcc 15
wakabanban 0:cb63da12fdcc 16 /*
wakabanban 0:cb63da12fdcc 17 * Modified by Neal Horman 7/14/2012 for use in mbed
wakabanban 0:cb63da12fdcc 18 */
wakabanban 0:cb63da12fdcc 19
wakabanban 0:cb63da12fdcc 20 #ifndef _ADAFRUIT_GFX_H_
wakabanban 0:cb63da12fdcc 21 #define _ADAFRUIT_GFX_H_
wakabanban 0:cb63da12fdcc 22
wakabanban 0:cb63da12fdcc 23 #include "Adafruit_GFX_Config.h"
wakabanban 0:cb63da12fdcc 24
wakabanban 0:cb63da12fdcc 25 static inline void swap(int16_t &a, int16_t &b)
wakabanban 0:cb63da12fdcc 26 {
wakabanban 0:cb63da12fdcc 27 int16_t t = a;
wakabanban 0:cb63da12fdcc 28
wakabanban 0:cb63da12fdcc 29 a = b;
wakabanban 0:cb63da12fdcc 30 b = t;
wakabanban 0:cb63da12fdcc 31 }
wakabanban 0:cb63da12fdcc 32
wakabanban 0:cb63da12fdcc 33 #ifndef _BV
wakabanban 0:cb63da12fdcc 34 #define _BV(bit) (1<<(bit))
wakabanban 0:cb63da12fdcc 35 #endif
wakabanban 0:cb63da12fdcc 36
wakabanban 0:cb63da12fdcc 37 #define BLACK 0
wakabanban 0:cb63da12fdcc 38 #define WHITE 1
wakabanban 0:cb63da12fdcc 39
wakabanban 0:cb63da12fdcc 40 /**
wakabanban 0:cb63da12fdcc 41 * This is a Text and Graphics element drawing class.
wakabanban 0:cb63da12fdcc 42 * These functions draw to the display buffer.
wakabanban 0:cb63da12fdcc 43 *
wakabanban 0:cb63da12fdcc 44 * Display drivers should be derived from here.
wakabanban 0:cb63da12fdcc 45 * The Display drivers push the display buffer to the
wakabanban 0:cb63da12fdcc 46 * hardware based on application control.
wakabanban 0:cb63da12fdcc 47 *
wakabanban 0:cb63da12fdcc 48 */
wakabanban 0:cb63da12fdcc 49 class Adafruit_GFX : public Stream
wakabanban 0:cb63da12fdcc 50 {
wakabanban 0:cb63da12fdcc 51 public:
wakabanban 0:cb63da12fdcc 52 Adafruit_GFX(int16_t w, int16_t h)
wakabanban 0:cb63da12fdcc 53 : _rawWidth(w)
wakabanban 0:cb63da12fdcc 54 , _rawHeight(h)
wakabanban 0:cb63da12fdcc 55 , _width(w)
wakabanban 0:cb63da12fdcc 56 , _height(h)
wakabanban 0:cb63da12fdcc 57 , cursor_x(0)
wakabanban 0:cb63da12fdcc 58 , cursor_y(0)
wakabanban 0:cb63da12fdcc 59 , textcolor(WHITE)
wakabanban 0:cb63da12fdcc 60 , textbgcolor(BLACK)
wakabanban 0:cb63da12fdcc 61 , textsize(1)
wakabanban 0:cb63da12fdcc 62 , rotation(0)
wakabanban 0:cb63da12fdcc 63 , wrap(true)
wakabanban 0:cb63da12fdcc 64 {};
wakabanban 0:cb63da12fdcc 65
wakabanban 0:cb63da12fdcc 66 /// Paint one BLACK or WHITE pixel in the display buffer
wakabanban 0:cb63da12fdcc 67 // this must be defined by the subclass
wakabanban 0:cb63da12fdcc 68 virtual void drawPixel(int16_t x, int16_t y, uint16_t color) = 0;
wakabanban 0:cb63da12fdcc 69 // this is optional
wakabanban 0:cb63da12fdcc 70 virtual void invertDisplay(bool i) {};
wakabanban 0:cb63da12fdcc 71
wakabanban 0:cb63da12fdcc 72 // Stream implementation - provides printf() interface
wakabanban 0:cb63da12fdcc 73 // You would otherwise be forced to use writeChar()
wakabanban 0:cb63da12fdcc 74 virtual int _putc(int value) { return writeChar(value); };
wakabanban 0:cb63da12fdcc 75 virtual int _getc() { return -1; };
wakabanban 0:cb63da12fdcc 76
wakabanban 0:cb63da12fdcc 77 #ifdef GFX_WANT_ABSTRACTS
wakabanban 0:cb63da12fdcc 78 // these are 'generic' drawing functions, so we can share them!
wakabanban 0:cb63da12fdcc 79
wakabanban 0:cb63da12fdcc 80 /** Draw a Horizontal Line
wakabanban 0:cb63da12fdcc 81 * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
wakabanban 0:cb63da12fdcc 82 */
wakabanban 0:cb63da12fdcc 83 virtual void drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
wakabanban 0:cb63da12fdcc 84 /** Draw a rectangle
wakabanban 0:cb63da12fdcc 85 * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
wakabanban 0:cb63da12fdcc 86 */
wakabanban 0:cb63da12fdcc 87 virtual void drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
wakabanban 0:cb63da12fdcc 88 /** Fill the entire display
wakabanban 0:cb63da12fdcc 89 * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
wakabanban 0:cb63da12fdcc 90 */
wakabanban 0:cb63da12fdcc 91 virtual void fillScreen(uint16_t color);
wakabanban 0:cb63da12fdcc 92
wakabanban 0:cb63da12fdcc 93 /** Draw a circle
wakabanban 0:cb63da12fdcc 94 * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
wakabanban 0:cb63da12fdcc 95 */
wakabanban 0:cb63da12fdcc 96 void drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
wakabanban 0:cb63da12fdcc 97 void drawCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, uint16_t color);
wakabanban 0:cb63da12fdcc 98
wakabanban 0:cb63da12fdcc 99 /** Draw and fill a circle
wakabanban 0:cb63da12fdcc 100 * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
wakabanban 0:cb63da12fdcc 101 */
wakabanban 0:cb63da12fdcc 102 void fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
wakabanban 0:cb63da12fdcc 103 void fillCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, int16_t delta, uint16_t color);
wakabanban 0:cb63da12fdcc 104
wakabanban 0:cb63da12fdcc 105 /** Draw a triangle
wakabanban 0:cb63da12fdcc 106 * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
wakabanban 0:cb63da12fdcc 107 */
wakabanban 0:cb63da12fdcc 108 void drawTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color);
wakabanban 0:cb63da12fdcc 109 /** Draw and fill a triangle
wakabanban 0:cb63da12fdcc 110 * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
wakabanban 0:cb63da12fdcc 111 */
wakabanban 0:cb63da12fdcc 112 void fillTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color);
wakabanban 0:cb63da12fdcc 113
wakabanban 0:cb63da12fdcc 114 /** Draw a rounded rectangle
wakabanban 0:cb63da12fdcc 115 * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
wakabanban 0:cb63da12fdcc 116 */
wakabanban 0:cb63da12fdcc 117 void drawRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, int16_t radius, uint16_t color);
wakabanban 0:cb63da12fdcc 118 /** Draw and fill a rounded rectangle
wakabanban 0:cb63da12fdcc 119 * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
wakabanban 0:cb63da12fdcc 120 */
wakabanban 0:cb63da12fdcc 121 void fillRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, int16_t radius, uint16_t color);
wakabanban 0:cb63da12fdcc 122 /** Draw a bitmap
wakabanban 0:cb63da12fdcc 123 * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
wakabanban 0:cb63da12fdcc 124 */
wakabanban 0:cb63da12fdcc 125 void drawBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t color);
wakabanban 0:cb63da12fdcc 126 #endif
wakabanban 0:cb63da12fdcc 127
wakabanban 0:cb63da12fdcc 128 #if defined(GFX_WANT_ABSTRACTS) || defined(GFX_SIZEABLE_TEXT)
wakabanban 0:cb63da12fdcc 129 /** Draw a line
wakabanban 0:cb63da12fdcc 130 * @note GFX_WANT_ABSTRACTS or GFX_SIZEABLE_TEXT must be defined in Adafruit_GFX_config.h
wakabanban 0:cb63da12fdcc 131 */
wakabanban 0:cb63da12fdcc 132 virtual void drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color);
wakabanban 0:cb63da12fdcc 133 /** Draw a vertical line
wakabanban 0:cb63da12fdcc 134 * @note GFX_WANT_ABSTRACTS or GFX_SIZEABLE_TEXT must be defined in Adafruit_GFX_config.h
wakabanban 0:cb63da12fdcc 135 */
wakabanban 0:cb63da12fdcc 136 virtual void drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
wakabanban 0:cb63da12fdcc 137 /** Draw and fill a rectangle
wakabanban 0:cb63da12fdcc 138 * @note GFX_WANT_ABSTRACTS or GFX_SIZEABLE_TEXT must be defined in Adafruit_GFX_config.h
wakabanban 0:cb63da12fdcc 139 */
wakabanban 0:cb63da12fdcc 140 virtual void fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
wakabanban 0:cb63da12fdcc 141 #endif
wakabanban 0:cb63da12fdcc 142
wakabanban 0:cb63da12fdcc 143 /// Draw a text character at a specified pixel location
wakabanban 0:cb63da12fdcc 144 void drawChar(int16_t x, int16_t y, unsigned char c, uint16_t color, uint16_t bg, uint8_t size);
wakabanban 0:cb63da12fdcc 145 /// Draw a text character at the text cursor location
wakabanban 0:cb63da12fdcc 146 size_t writeChar(uint8_t);
wakabanban 0:cb63da12fdcc 147
wakabanban 0:cb63da12fdcc 148 /// Get the width of the display in pixels
wakabanban 0:cb63da12fdcc 149 inline int16_t width(void) { return _width; };
wakabanban 0:cb63da12fdcc 150 /// Get the height of the display in pixels
wakabanban 0:cb63da12fdcc 151 inline int16_t height(void) { return _height; };
wakabanban 0:cb63da12fdcc 152
wakabanban 0:cb63da12fdcc 153 /// Set the text cursor location, based on the size of the text
wakabanban 0:cb63da12fdcc 154 inline void setTextCursor(int16_t x, int16_t y) { cursor_x = x; cursor_y = y; };
wakabanban 0:cb63da12fdcc 155 #if defined(GFX_WANT_ABSTRACTS) || defined(GFX_SIZEABLE_TEXT)
wakabanban 0:cb63da12fdcc 156 /** Set the size of the text to be drawn
wakabanban 0:cb63da12fdcc 157 * @note Make sure to enable either GFX_SIZEABLE_TEXT or GFX_WANT_ABSTRACTS
wakabanban 0:cb63da12fdcc 158 */
wakabanban 0:cb63da12fdcc 159 inline void setTextSize(uint8_t s) { textsize = (s > 0) ? s : 1; };
wakabanban 0:cb63da12fdcc 160 #endif
wakabanban 0:cb63da12fdcc 161 /// Set the text foreground and background colors to be the same
wakabanban 0:cb63da12fdcc 162 inline void setTextColor(uint16_t c) { textcolor = c; textbgcolor = c; }
wakabanban 0:cb63da12fdcc 163 /// Set the text foreground and background colors independantly
wakabanban 0:cb63da12fdcc 164 inline void setTextColor(uint16_t c, uint16_t b) { textcolor = c; textbgcolor = b; };
wakabanban 0:cb63da12fdcc 165 /// Set text wraping mode true or false
wakabanban 0:cb63da12fdcc 166 inline void setTextWrap(bool w) { wrap = w; };
wakabanban 0:cb63da12fdcc 167
wakabanban 0:cb63da12fdcc 168 /// Set the display rotation, 1, 2, 3, or 4
wakabanban 0:cb63da12fdcc 169 void setRotation(uint8_t r);
wakabanban 0:cb63da12fdcc 170 /// Get the current rotation
wakabanban 0:cb63da12fdcc 171 inline uint8_t getRotation(void) { rotation %= 4; return rotation; };
wakabanban 0:cb63da12fdcc 172
wakabanban 0:cb63da12fdcc 173 protected:
wakabanban 0:cb63da12fdcc 174 int16_t _rawWidth, _rawHeight; // this is the 'raw' display w/h - never changes
wakabanban 0:cb63da12fdcc 175 int16_t _width, _height; // dependent on rotation
wakabanban 0:cb63da12fdcc 176 int16_t cursor_x, cursor_y;
wakabanban 0:cb63da12fdcc 177 uint16_t textcolor, textbgcolor;
wakabanban 0:cb63da12fdcc 178 uint8_t textsize;
wakabanban 0:cb63da12fdcc 179 uint8_t rotation;
wakabanban 0:cb63da12fdcc 180 bool wrap; // If set, 'wrap' text at right edge of display
wakabanban 0:cb63da12fdcc 181 };
wakabanban 0:cb63da12fdcc 182
wakabanban 0:cb63da12fdcc 183 #endif