Adafruit GFX Library
Adafruit_GFX.h
1 #ifndef _ADAFRUIT_GFX_H
2 #define _ADAFRUIT_GFX_H
3 
4 #if ARDUINO >= 100
5 #include "Arduino.h"
6 #include "Print.h"
7 #else
8 #include "WProgram.h"
9 #endif
10 #include "gfxfont.h"
11 
12 #include <Adafruit_I2CDevice.h>
13 #include <Adafruit_SPIDevice.h>
14 
18 class Adafruit_GFX : public Print {
19 
20 public:
21  Adafruit_GFX(int16_t w, int16_t h); // Constructor
22 
23  /**********************************************************************/
31  /**********************************************************************/
32  virtual void drawPixel(int16_t x, int16_t y, uint16_t color) = 0;
33 
34  // TRANSACTION API / CORE DRAW API
35  // These MAY be overridden by the subclass to provide device-specific
36  // optimized code. Otherwise 'generic' versions are used.
37  virtual void startWrite(void);
38  virtual void writePixel(int16_t x, int16_t y, uint16_t color);
39  virtual void writeFillRect(int16_t x, int16_t y, int16_t w, int16_t h,
40  uint16_t color);
41  virtual void writeFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
42  virtual void writeFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
43  virtual void writeLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1,
44  uint16_t color);
45  virtual void endWrite(void);
46 
47  // CONTROL API
48  // These MAY be overridden by the subclass to provide device-specific
49  // optimized code. Otherwise 'generic' versions are used.
50  virtual void setRotation(uint8_t r);
51  virtual void invertDisplay(bool i);
52 
53  // BASIC DRAW API
54  // These MAY be overridden by the subclass to provide device-specific
55  // optimized code. Otherwise 'generic' versions are used.
56 
57  // It's good to implement those, even if using transaction API
58  virtual void drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
59  virtual void drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
60  virtual void fillRect(int16_t x, int16_t y, int16_t w, int16_t h,
61  uint16_t color);
62  virtual void fillScreen(uint16_t color);
63  // Optional and probably not necessary to change
64  virtual void drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1,
65  uint16_t color);
66  virtual void drawRect(int16_t x, int16_t y, int16_t w, int16_t h,
67  uint16_t color);
68 
69  // These exist only with Adafruit_GFX (no subclass overrides)
70  void drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
71  void drawCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername,
72  uint16_t color);
73  void fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
74  void fillCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername,
75  int16_t delta, uint16_t color);
76  void drawTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2,
77  int16_t y2, uint16_t color);
78  void fillTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2,
79  int16_t y2, uint16_t color);
80  void drawRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h,
81  int16_t radius, uint16_t color);
82  void fillRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h,
83  int16_t radius, uint16_t color);
84  void drawBitmap(int16_t x, int16_t y, const uint8_t bitmap[], int16_t w,
85  int16_t h, uint16_t color);
86  void drawBitmap(int16_t x, int16_t y, const uint8_t bitmap[], int16_t w,
87  int16_t h, uint16_t color, uint16_t bg);
88  void drawBitmap(int16_t x, int16_t y, uint8_t *bitmap, int16_t w, int16_t h,
89  uint16_t color);
90  void drawBitmap(int16_t x, int16_t y, uint8_t *bitmap, int16_t w, int16_t h,
91  uint16_t color, uint16_t bg);
92  void drawXBitmap(int16_t x, int16_t y, const uint8_t bitmap[], int16_t w,
93  int16_t h, uint16_t color);
94  void drawGrayscaleBitmap(int16_t x, int16_t y, const uint8_t bitmap[],
95  int16_t w, int16_t h);
96  void drawGrayscaleBitmap(int16_t x, int16_t y, uint8_t *bitmap, int16_t w,
97  int16_t h);
98  void drawGrayscaleBitmap(int16_t x, int16_t y, const uint8_t bitmap[],
99  const uint8_t mask[], int16_t w, int16_t h);
100  void drawGrayscaleBitmap(int16_t x, int16_t y, uint8_t *bitmap, uint8_t *mask,
101  int16_t w, int16_t h);
102  void drawRGBBitmap(int16_t x, int16_t y, const uint16_t bitmap[], int16_t w,
103  int16_t h);
104  void drawRGBBitmap(int16_t x, int16_t y, uint16_t *bitmap, int16_t w,
105  int16_t h);
106  void drawRGBBitmap(int16_t x, int16_t y, const uint16_t bitmap[],
107  const uint8_t mask[], int16_t w, int16_t h);
108  void drawRGBBitmap(int16_t x, int16_t y, uint16_t *bitmap, uint8_t *mask,
109  int16_t w, int16_t h);
110  void drawChar(int16_t x, int16_t y, unsigned char c, uint16_t color,
111  uint16_t bg, uint8_t size);
112  void drawChar(int16_t x, int16_t y, unsigned char c, uint16_t color,
113  uint16_t bg, uint8_t size_x, uint8_t size_y);
114  void getTextBounds(const char *string, int16_t x, int16_t y, int16_t *x1,
115  int16_t *y1, uint16_t *w, uint16_t *h);
116  void getTextBounds(const __FlashStringHelper *s, int16_t x, int16_t y,
117  int16_t *x1, int16_t *y1, uint16_t *w, uint16_t *h);
118  void getTextBounds(const String &str, int16_t x, int16_t y, int16_t *x1,
119  int16_t *y1, uint16_t *w, uint16_t *h);
120  void setTextSize(uint8_t s);
121  void setTextSize(uint8_t sx, uint8_t sy);
122  void setFont(const GFXfont *f = NULL);
123 
124  /**********************************************************************/
130  /**********************************************************************/
131  void setCursor(int16_t x, int16_t y) {
132  cursor_x = x;
133  cursor_y = y;
134  }
135 
136  /**********************************************************************/
143  /**********************************************************************/
144  void setTextColor(uint16_t c) { textcolor = textbgcolor = c; }
145 
146  /**********************************************************************/
152  /**********************************************************************/
153  void setTextColor(uint16_t c, uint16_t bg) {
154  textcolor = c;
155  textbgcolor = bg;
156  }
157 
158  /**********************************************************************/
164  /**********************************************************************/
165  void setTextWrap(bool w) { wrap = w; }
166 
167  /**********************************************************************/
180  /**********************************************************************/
181  void cp437(bool x = true) { _cp437 = x; }
182 
183  using Print::write;
184 #if ARDUINO >= 100
185  virtual size_t write(uint8_t);
186 #else
187  virtual void write(uint8_t);
188 #endif
189 
190  /************************************************************************/
195  /************************************************************************/
196  int16_t width(void) const { return _width; };
197 
198  /************************************************************************/
203  /************************************************************************/
204  int16_t height(void) const { return _height; }
205 
206  /************************************************************************/
211  /************************************************************************/
212  uint8_t getRotation(void) const { return rotation; }
213 
214  // get current cursor position (get rotation safe maximum values,
215  // using: width() for x, height() for y)
216  /************************************************************************/
221  /************************************************************************/
222  int16_t getCursorX(void) const { return cursor_x; }
223 
224  /************************************************************************/
229  /************************************************************************/
230  int16_t getCursorY(void) const { return cursor_y; };
231 
232 protected:
233  void charBounds(unsigned char c, int16_t *x, int16_t *y, int16_t *minx,
234  int16_t *miny, int16_t *maxx, int16_t *maxy);
235  int16_t WIDTH;
236  int16_t HEIGHT;
237  int16_t _width;
238  int16_t _height;
239  int16_t cursor_x;
240  int16_t cursor_y;
241  uint16_t textcolor;
242  uint16_t textbgcolor;
243  uint8_t textsize_x;
244  uint8_t textsize_y;
245  uint8_t rotation;
246  bool wrap;
247  bool _cp437;
248  GFXfont *gfxFont;
249 };
250 
252 class Adafruit_GFX_Button {
253 
254 public:
255  Adafruit_GFX_Button(void);
256  // "Classic" initButton() uses center & size
257  void initButton(Adafruit_GFX *gfx, int16_t x, int16_t y, uint16_t w,
258  uint16_t h, uint16_t outline, uint16_t fill,
259  uint16_t textcolor, char *label, uint8_t textsize);
260  void initButton(Adafruit_GFX *gfx, int16_t x, int16_t y, uint16_t w,
261  uint16_t h, uint16_t outline, uint16_t fill,
262  uint16_t textcolor, char *label, uint8_t textsize_x,
263  uint8_t textsize_y);
264  // New/alt initButton() uses upper-left corner & size
265  void initButtonUL(Adafruit_GFX *gfx, int16_t x1, int16_t y1, uint16_t w,
266  uint16_t h, uint16_t outline, uint16_t fill,
267  uint16_t textcolor, char *label, uint8_t textsize);
268  void initButtonUL(Adafruit_GFX *gfx, int16_t x1, int16_t y1, uint16_t w,
269  uint16_t h, uint16_t outline, uint16_t fill,
270  uint16_t textcolor, char *label, uint8_t textsize_x,
271  uint8_t textsize_y);
272  void drawButton(bool inverted = false);
273  bool contains(int16_t x, int16_t y);
274 
275  /**********************************************************************/
280  /**********************************************************************/
281  void press(bool p) {
282  laststate = currstate;
283  currstate = p;
284  }
285 
286  bool justPressed();
287  bool justReleased();
288 
289  /**********************************************************************/
294  /**********************************************************************/
295  bool isPressed(void) { return currstate; };
296 
297 private:
298  Adafruit_GFX *_gfx;
299  int16_t _x1, _y1; // Coordinates of top-left corner
300  uint16_t _w, _h;
301  uint8_t _textsize_x;
302  uint8_t _textsize_y;
303  uint16_t _outlinecolor, _fillcolor, _textcolor;
304  char _label[10];
305 
306  bool currstate, laststate;
307 };
308 
310 class GFXcanvas1 : public Adafruit_GFX {
311 public:
312  GFXcanvas1(uint16_t w, uint16_t h);
313  ~GFXcanvas1(void);
314  void drawPixel(int16_t x, int16_t y, uint16_t color);
315  void fillScreen(uint16_t color);
316  void drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
317  void drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
318  bool getPixel(int16_t x, int16_t y) const;
319  /**********************************************************************/
324  /**********************************************************************/
325  uint8_t *getBuffer(void) const { return buffer; }
326 
327 protected:
328  bool getRawPixel(int16_t x, int16_t y) const;
329  void drawFastRawVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
330  void drawFastRawHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
331  uint8_t *buffer;
332 
333 private:
334 #ifdef __AVR__
335  // Bitmask tables of 0x80>>X and ~(0x80>>X), because X>>Y is slow on AVR
336  static const uint8_t PROGMEM GFXsetBit[], GFXclrBit[];
337 #endif
338 };
339 
341 class GFXcanvas8 : public Adafruit_GFX {
342 public:
343  GFXcanvas8(uint16_t w, uint16_t h);
344  ~GFXcanvas8(void);
345  void drawPixel(int16_t x, int16_t y, uint16_t color);
346  void fillScreen(uint16_t color);
347  void drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
348  void drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
349  uint8_t getPixel(int16_t x, int16_t y) const;
350  /**********************************************************************/
355  /**********************************************************************/
356  uint8_t *getBuffer(void) const { return buffer; }
357 
358 protected:
359  uint8_t getRawPixel(int16_t x, int16_t y) const;
360  void drawFastRawVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
361  void drawFastRawHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
362  uint8_t *buffer;
363 };
364 
366 class GFXcanvas16 : public Adafruit_GFX {
367 public:
368  GFXcanvas16(uint16_t w, uint16_t h);
369  ~GFXcanvas16(void);
370  void drawPixel(int16_t x, int16_t y, uint16_t color);
371  void fillScreen(uint16_t color);
372  void byteSwap(void);
373  void drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
374  void drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
375  uint16_t getPixel(int16_t x, int16_t y) const;
376  /**********************************************************************/
381  /**********************************************************************/
382  uint16_t *getBuffer(void) const { return buffer; }
383 
384 protected:
385  uint16_t getRawPixel(int16_t x, int16_t y) const;
386  void drawFastRawVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
387  void drawFastRawHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
388  uint16_t *buffer;
389 };
390 
391 #endif // _ADAFRUIT_GFX_H
GFXcanvas8::getBuffer
uint8_t * getBuffer(void) const
Get a pointer to the internal buffer memory.
Definition: Adafruit_GFX.h:356
Adafruit_GFX::fillCircleHelper
void fillCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, int16_t delta, uint16_t color)
Quarter-circle drawer with fill, used for circles and roundrects.
Definition: Adafruit_GFX.cpp:471
Adafruit_GFX_Button::isPressed
bool isPressed(void)
Query whether the button is currently pressed.
Definition: Adafruit_GFX.h:295
Adafruit_GFX::writePixel
virtual void writePixel(int16_t x, int16_t y, uint16_t color)
Write a pixel, overwrite in subclasses if startWrite is defined!
Definition: Adafruit_GFX.cpp:190
Adafruit_GFX::setTextColor
void setTextColor(uint16_t c, uint16_t bg)
Set text font color with custom background color.
Definition: Adafruit_GFX.h:153
Adafruit_GFX::drawXBitmap
void drawXBitmap(int16_t x, int16_t y, const uint8_t bitmap[], int16_t w, int16_t h, uint16_t color)
Draw PROGMEM-resident XBitMap Files (*.xbm), exported from GIMP. Usage: Export from GIMP to *...
Definition: Adafruit_GFX.cpp:851
GFXfont
Data stored for FONT AS A WHOLE.
Definition: gfxfont.h:21
Adafruit_GFX::setTextWrap
void setTextWrap(bool w)
Set whether text that is too long for the screen width should automatically wrap around to the next l...
Definition: Adafruit_GFX.h:165
Adafruit_GFX
Definition: Adafruit_GFX.h:18
Adafruit_GFX::fillCircle
void fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color)
Draw a circle with filled color.
Definition: Adafruit_GFX.cpp:452
GFXcanvas1::getBuffer
uint8_t * getBuffer(void) const
Get a pointer to the internal buffer memory.
Definition: Adafruit_GFX.h:325
Adafruit_GFX::drawPixel
virtual void drawPixel(int16_t x, int16_t y, uint16_t color)=0
Draw to the screen/framebuffer/etc. Must be overridden in subclass.
Adafruit_GFX::endWrite
virtual void endWrite(void)
End a display-writing routine, overwrite in subclasses if startWrite is defined!
Definition: Adafruit_GFX.cpp:253
GFXcanvas1::buffer
uint8_t * buffer
Raster data: no longer private, allow subclass access.
Definition: Adafruit_GFX.h:331
Adafruit_GFX::drawChar
void drawChar(int16_t x, int16_t y, unsigned char c, uint16_t color, uint16_t bg, uint8_t size)
Draw a single character.
Definition: Adafruit_GFX.cpp:1115
Adafruit_GFX::getCursorX
int16_t getCursorX(void) const
Get text cursor X location.
Definition: Adafruit_GFX.h:222
Adafruit_GFX::writeFillRect
virtual void writeFillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color)
Write a rectangle completely with one color, overwrite in subclasses if startWrite is defined! ...
Definition: Adafruit_GFX.cpp:241
Adafruit_GFX::cursor_y
int16_t cursor_y
y location to start print()ing text
Definition: Adafruit_GFX.h:240
Adafruit_GFX::drawTriangle
void drawTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color)
Draw a triangle with no fill color.
Definition: Adafruit_GFX.cpp:600
Adafruit_GFX::gfxFont
GFXfont * gfxFont
Pointer to special font.
Definition: Adafruit_GFX.h:248
Adafruit_GFX::drawRoundRect
void drawRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, int16_t radius, uint16_t color)
Draw a rounded rectangle with no fill color.
Definition: Adafruit_GFX.cpp:544
GFXcanvas1
A GFX 1-bit canvas context for graphics.
Definition: Adafruit_GFX.h:310
Adafruit_GFX::setFont
void setFont(const GFXfont *f=NULL)
Set the font to display when print()ing, either custom or default.
Definition: Adafruit_GFX.cpp:1338
Adafruit_GFX::textsize_x
uint8_t textsize_x
Desired magnification in X-axis of text to print()
Definition: Adafruit_GFX.h:243
GFXcanvas8::buffer
uint8_t * buffer
Raster data: no longer private, allow subclass access.
Definition: Adafruit_GFX.h:362
GFXcanvas16
A GFX 16-bit canvas context for graphics.
Definition: Adafruit_GFX.h:366
Adafruit_GFX::invertDisplay
virtual void invertDisplay(bool i)
Invert the display (ideally using built-in hardware command)
Definition: Adafruit_GFX.cpp:1540
Adafruit_GFX::drawCircleHelper
void drawCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, uint16_t color)
Quarter-circle drawer, used to do circles and roundrects.
Definition: Adafruit_GFX.cpp:407
Adafruit_GFX_Button::press
void press(bool p)
Sets button state, should be done by some touch function.
Definition: Adafruit_GFX.h:281
Adafruit_GFX::drawRGBBitmap
void drawRGBBitmap(int16_t x, int16_t y, const uint16_t bitmap[], int16_t w, int16_t h)
Draw a PROGMEM-resident 16-bit image (RGB 5/6/5) at the specified (x,y) position. For 16-bit display ...
Definition: Adafruit_GFX.cpp:1001
Adafruit_GFX::_cp437
bool _cp437
If set, use correct CP437 charset (default is off)
Definition: Adafruit_GFX.h:247
GFXcanvas8
A GFX 8-bit canvas context for graphics.
Definition: Adafruit_GFX.h:341
Adafruit_GFX::setTextColor
void setTextColor(uint16_t c)
Set text font color with transparant background.
Definition: Adafruit_GFX.h:144
Adafruit_GFX::writeLine
virtual void writeLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color)
Write a line. Bresenham&#39;s algorithm - thx wikpedia.
Definition: Adafruit_GFX.cpp:132
Adafruit_GFX::fillRect
virtual void fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color)
Fill a rectangle completely with one color. Update in subclasses if desired!
Definition: Adafruit_GFX.cpp:300
Adafruit_GFX::height
int16_t height(void) const
Get height of the display, accounting for current rotation.
Definition: Adafruit_GFX.h:204
Adafruit_GFX::cp437
void cp437(bool x=true)
Enable (or disable) Code Page 437-compatible charset. There was an error in glcdfont.c for the longest time – one character (#176, the &#39;light shade&#39; block) was missing – this threw off the index of every character that followed it. But a TON of code has been written with the erroneous character indices. By default, the library uses the original &#39;wrong&#39; behavior and old sketches will still work. Pass &#39;true&#39; to this function to use correct CP437 character values in your code.
Definition: Adafruit_GFX.h:181
Adafruit_GFX::setRotation
virtual void setRotation(uint8_t r)
Set rotation setting for display.
Definition: Adafruit_GFX.cpp:1316
Adafruit_GFX::drawGrayscaleBitmap
void drawGrayscaleBitmap(int16_t x, int16_t y, const uint8_t bitmap[], int16_t w, int16_t h)
Draw a PROGMEM-resident 8-bit image (grayscale) at the specified (x,y) pos. Specifically for 8-bit di...
Definition: Adafruit_GFX.cpp:885
Adafruit_GFX::charBounds
void charBounds(unsigned char c, int16_t *x, int16_t *y, int16_t *minx, int16_t *miny, int16_t *maxx, int16_t *maxy)
Helper to determine size of a character with current font/size. Broke this out as it&#39;s used by both t...
Definition: Adafruit_GFX.cpp:1371
Adafruit_GFX::getRotation
uint8_t getRotation(void) const
Get rotation setting for display.
Definition: Adafruit_GFX.h:212
Adafruit_GFX::setTextSize
void setTextSize(uint8_t s)
Set text &#39;magnification&#39; size. Each increase in s makes 1 pixel that much bigger. ...
Definition: Adafruit_GFX.cpp:1295
Adafruit_GFX::textbgcolor
uint16_t textbgcolor
16-bit text color for print()
Definition: Adafruit_GFX.h:242
Adafruit_GFX::Adafruit_GFX
Adafruit_GFX(int16_t w, int16_t h)
Instatiate a GFX context for graphics! Can only be done by a superclass.
Definition: Adafruit_GFX.cpp:110
Adafruit_GFX::cursor_x
int16_t cursor_x
x location to start print()ing text
Definition: Adafruit_GFX.h:239
Adafruit_GFX::textsize_y
uint8_t textsize_y
Desired magnification in Y-axis of text to print()
Definition: Adafruit_GFX.h:244
Adafruit_GFX::_height
int16_t _height
Display height as modified by current rotation.
Definition: Adafruit_GFX.h:238
Adafruit_GFX::_width
int16_t _width
Display width as modified by current rotation.
Definition: Adafruit_GFX.h:237
Adafruit_GFX::fillRoundRect
void fillRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, int16_t radius, uint16_t color)
Draw a rounded rectangle with fill color.
Definition: Adafruit_GFX.cpp:574
Adafruit_GFX::drawFastHLine
virtual void drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color)
Draw a perfectly horizontal line (this is often optimized in a subclass!)
Definition: Adafruit_GFX.cpp:282
Adafruit_GFX::getCursorY
int16_t getCursorY(void) const
Get text cursor Y location.
Definition: Adafruit_GFX.h:230
Adafruit_GFX::rotation
uint8_t rotation
Display rotation (0 thru 3)
Definition: Adafruit_GFX.h:245
Adafruit_GFX::setCursor
void setCursor(int16_t x, int16_t y)
Set text cursor location.
Definition: Adafruit_GFX.h:131
GFXcanvas16::buffer
uint16_t * buffer
Raster data: no longer private, allow subclass access.
Definition: Adafruit_GFX.h:388
Adafruit_GFX::textcolor
uint16_t textcolor
16-bit background color for print()
Definition: Adafruit_GFX.h:241
Adafruit_GFX::wrap
bool wrap
If set, &#39;wrap&#39; text at right edge of display.
Definition: Adafruit_GFX.h:246
Adafruit_GFX::fillTriangle
void fillTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color)
Draw a triangle with color-fill.
Definition: Adafruit_GFX.cpp:619
GFXcanvas16::getBuffer
uint16_t * getBuffer(void) const
Get a pointer to the internal buffer memory.
Definition: Adafruit_GFX.h:382
Adafruit_GFX::drawFastVLine
virtual void drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color)
Draw a perfectly vertical line (this is often optimized in a subclass!)
Definition: Adafruit_GFX.cpp:265
Adafruit_GFX::drawLine
virtual void drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color)
Draw a line.
Definition: Adafruit_GFX.cpp:330
Adafruit_GFX::startWrite
virtual void startWrite(void)
Start a display-writing routine, overwrite in subclasses.
Definition: Adafruit_GFX.cpp:180
Adafruit_GFX::HEIGHT
int16_t HEIGHT
This is the &#39;raw&#39; display height - never changes.
Definition: Adafruit_GFX.h:236
Adafruit_GFX::drawCircle
void drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color)
Draw a circle outline.
Definition: Adafruit_GFX.cpp:357
Adafruit_GFX::writeFastHLine
virtual void writeFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color)
Write a perfectly horizontal line, overwrite in subclasses if startWrite is defined! ...
Definition: Adafruit_GFX.cpp:222
Adafruit_GFX::drawBitmap
void drawBitmap(int16_t x, int16_t y, const uint8_t bitmap[], int16_t w, int16_t h, uint16_t color)
Draw a PROGMEM-resident 1-bit image at the specified (x,y) position, using the specified foreground c...
Definition: Adafruit_GFX.cpp:717
Adafruit_GFX::writeFastVLine
virtual void writeFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color)
Write a perfectly vertical line, overwrite in subclasses if startWrite is defined! ...
Definition: Adafruit_GFX.cpp:204
Adafruit_GFX_Button
A simple drawn button UI element.
Definition: Adafruit_GFX.h:252
Adafruit_GFX::drawRect
virtual void drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color)
Draw a rectangle with no fill color.
Definition: Adafruit_GFX.cpp:523
Adafruit_GFX::getTextBounds
void getTextBounds(const char *string, int16_t x, int16_t y, int16_t *x1, int16_t *y1, uint16_t *w, uint16_t *h)
Helper to determine size of a string with current font/size. Pass string and a cursor position...
Definition: Adafruit_GFX.cpp:1448
Adafruit_GFX::write
virtual void write(uint8_t)
Print one byte/character of data, used to support print()
Definition: Adafruit_GFX.cpp:1242
Adafruit_GFX::fillScreen
virtual void fillScreen(uint16_t color)
Fill the screen completely with one color. Update in subclasses if desired!
Definition: Adafruit_GFX.cpp:316
Adafruit_GFX::WIDTH
int16_t WIDTH
This is the &#39;raw&#39; display width - never changes.
Definition: Adafruit_GFX.h:235
Adafruit_GFX::width
int16_t width(void) const
Get width of the display, accounting for current rotation.
Definition: Adafruit_GFX.h:196
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