228 lines
8.5 KiB
C
228 lines
8.5 KiB
C
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#ifndef _ADAFRUIT_GFX_H
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#define _ADAFRUIT_GFX_H
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#if ARDUINO >= 100
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#include "Arduino.h"
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#include "Print.h"
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#else
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#include "WProgram.h"
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#endif
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#include "gfxfont.h"
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/// A generic graphics superclass that can handle all sorts of drawing. At a minimum you can subclass and provide drawPixel(). At a maximum you can do a ton of overriding to optimize. Used for any/all Adafruit displays!
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class Adafruit_GFX : public Print {
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public:
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Adafruit_GFX(int16_t w, int16_t h); // Constructor
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// This MUST be defined by the subclass:
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virtual void drawPixel(int16_t x, int16_t y, uint16_t color) = 0; ///< Virtual drawPixel() function to draw to the screen/framebuffer/etc, must be overridden in subclass. @param x X coordinate. @param y Y coordinate. @param color 16-bit pixel color.
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// TRANSACTION API / CORE DRAW API
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// These MAY be overridden by the subclass to provide device-specific
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// optimized code. Otherwise 'generic' versions are used.
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virtual void startWrite(void);
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virtual void writePixel(int16_t x, int16_t y, uint16_t color);
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virtual void writeFillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
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virtual void writeFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
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virtual void writeFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
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virtual void writeLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color);
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virtual void endWrite(void);
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// CONTROL API
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// These MAY be overridden by the subclass to provide device-specific
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// optimized code. Otherwise 'generic' versions are used.
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virtual void setRotation(uint8_t r);
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virtual void invertDisplay(boolean i);
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// BASIC DRAW API
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// These MAY be overridden by the subclass to provide device-specific
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// optimized code. Otherwise 'generic' versions are used.
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virtual void
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// It's good to implement those, even if using transaction API
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drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color),
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drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color),
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fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color),
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fillScreen(uint16_t color),
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// Optional and probably not necessary to change
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drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color),
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drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
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// These exist only with Adafruit_GFX (no subclass overrides)
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void
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drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color),
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drawCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername,
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uint16_t color),
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fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color),
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fillCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername,
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int16_t delta, uint16_t color),
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drawTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1,
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int16_t x2, int16_t y2, uint16_t color),
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fillTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1,
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int16_t x2, int16_t y2, uint16_t color),
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drawRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h,
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int16_t radius, uint16_t color),
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fillRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h,
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int16_t radius, uint16_t color),
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drawBitmap(int16_t x, int16_t y, const uint8_t bitmap[],
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int16_t w, int16_t h, uint16_t color),
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drawBitmap(int16_t x, int16_t y, const uint8_t bitmap[],
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int16_t w, int16_t h, uint16_t color, uint16_t bg),
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drawBitmap(int16_t x, int16_t y, uint8_t *bitmap,
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int16_t w, int16_t h, uint16_t color),
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drawBitmap(int16_t x, int16_t y, uint8_t *bitmap,
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int16_t w, int16_t h, uint16_t color, uint16_t bg),
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drawXBitmap(int16_t x, int16_t y, const uint8_t bitmap[],
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int16_t w, int16_t h, uint16_t color),
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drawGrayscaleBitmap(int16_t x, int16_t y, const uint8_t bitmap[],
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int16_t w, int16_t h),
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drawGrayscaleBitmap(int16_t x, int16_t y, uint8_t *bitmap,
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int16_t w, int16_t h),
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drawGrayscaleBitmap(int16_t x, int16_t y,
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const uint8_t bitmap[], const uint8_t mask[],
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int16_t w, int16_t h),
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drawGrayscaleBitmap(int16_t x, int16_t y,
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uint8_t *bitmap, uint8_t *mask, int16_t w, int16_t h),
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drawRGBBitmap(int16_t x, int16_t y, const uint16_t bitmap[],
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int16_t w, int16_t h),
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drawRGBBitmap(int16_t x, int16_t y, uint16_t *bitmap,
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int16_t w, int16_t h),
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drawRGBBitmap(int16_t x, int16_t y,
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const uint16_t bitmap[], const uint8_t mask[],
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int16_t w, int16_t h),
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drawRGBBitmap(int16_t x, int16_t y,
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uint16_t *bitmap, uint8_t *mask, int16_t w, int16_t h),
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drawChar(int16_t x, int16_t y, unsigned char c, uint16_t color,
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uint16_t bg, uint8_t size),
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setCursor(int16_t x, int16_t y),
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setTextColor(uint16_t c),
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setTextColor(uint16_t c, uint16_t bg),
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setTextSize(uint8_t s),
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setTextWrap(boolean w),
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cp437(boolean x=true),
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setFont(const GFXfont *f = NULL),
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getTextBounds(const char *string, int16_t x, int16_t y,
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int16_t *x1, int16_t *y1, uint16_t *w, uint16_t *h),
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getTextBounds(const __FlashStringHelper *s, int16_t x, int16_t y,
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int16_t *x1, int16_t *y1, uint16_t *w, uint16_t *h),
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getTextBounds(const String &str, int16_t x, int16_t y,
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int16_t *x1, int16_t *y1, uint16_t *w, uint16_t *h);
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#if ARDUINO >= 100
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virtual size_t write(uint8_t);
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#else
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virtual void write(uint8_t);
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#endif
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int16_t height(void) const;
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int16_t width(void) const;
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uint8_t getRotation(void) const;
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// get current cursor position (get rotation safe maximum values, using: width() for x, height() for y)
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int16_t getCursorX(void) const;
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int16_t getCursorY(void) const;
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protected:
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void
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charBounds(char c, int16_t *x, int16_t *y,
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int16_t *minx, int16_t *miny, int16_t *maxx, int16_t *maxy);
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const int16_t
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WIDTH, ///< This is the 'raw' display width - never changes
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HEIGHT; ///< This is the 'raw' display height - never changes
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int16_t
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_width, ///< Display width as modified by current rotation
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_height, ///< Display height as modified by current rotation
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cursor_x, ///< x location to start print()ing text
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cursor_y; ///< y location to start print()ing text
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uint16_t
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textcolor, ///< 16-bit background color for print()
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textbgcolor; ///< 16-bit text color for print()
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uint8_t
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textsize, ///< Desired magnification of text to print()
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rotation; ///< Display rotation (0 thru 3)
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boolean
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wrap, ///< If set, 'wrap' text at right edge of display
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_cp437; ///< If set, use correct CP437 charset (default is off)
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GFXfont
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*gfxFont; ///< Pointer to special font
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};
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/// A simple drawn button UI element
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class Adafruit_GFX_Button {
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public:
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Adafruit_GFX_Button(void);
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// "Classic" initButton() uses center & size
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void initButton(Adafruit_GFX *gfx, int16_t x, int16_t y,
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uint16_t w, uint16_t h, uint16_t outline, uint16_t fill,
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uint16_t textcolor, char *label, uint8_t textsize);
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// New/alt initButton() uses upper-left corner & size
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void initButtonUL(Adafruit_GFX *gfx, int16_t x1, int16_t y1,
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uint16_t w, uint16_t h, uint16_t outline, uint16_t fill,
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uint16_t textcolor, char *label, uint8_t textsize);
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void drawButton(boolean inverted = false);
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boolean contains(int16_t x, int16_t y);
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void press(boolean p);
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boolean isPressed();
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boolean justPressed();
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boolean justReleased();
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private:
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Adafruit_GFX *_gfx;
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int16_t _x1, _y1; // Coordinates of top-left corner
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uint16_t _w, _h;
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uint8_t _textsize;
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uint16_t _outlinecolor, _fillcolor, _textcolor;
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char _label[10];
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boolean currstate, laststate;
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};
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/// A GFX 1-bit canvas context for graphics
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class GFXcanvas1 : public Adafruit_GFX {
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public:
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GFXcanvas1(uint16_t w, uint16_t h);
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~GFXcanvas1(void);
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void drawPixel(int16_t x, int16_t y, uint16_t color),
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fillScreen(uint16_t color);
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uint8_t *getBuffer(void);
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private:
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uint8_t *buffer;
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};
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/// A GFX 8-bit canvas context for graphics
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class GFXcanvas8 : public Adafruit_GFX {
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public:
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GFXcanvas8(uint16_t w, uint16_t h);
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~GFXcanvas8(void);
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void drawPixel(int16_t x, int16_t y, uint16_t color),
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fillScreen(uint16_t color),
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writeFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
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uint8_t *getBuffer(void);
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private:
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uint8_t *buffer;
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};
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/// A GFX 16-bit canvas context for graphics
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class GFXcanvas16 : public Adafruit_GFX {
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public:
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GFXcanvas16(uint16_t w, uint16_t h);
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~GFXcanvas16(void);
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void drawPixel(int16_t x, int16_t y, uint16_t color),
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fillScreen(uint16_t color);
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uint16_t *getBuffer(void);
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private:
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uint16_t *buffer;
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};
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#endif // _ADAFRUIT_GFX_H
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