Diff: Adafruit_GFX.h

Revision:

0:3e9c32359703

Child:

1:c2715acb7466

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Adafruit_GFX.h	Fri May 23 15:05:48 2014 +0000
@@ -0,0 +1,107 @@
+#ifndef _ADAFRUIT_GFX_H
+#define _ADAFRUIT_GFX_H
+#define BLACK 0
+#define WHITE 1
+#ifndef _BV
+#define _BV(bit) (1<<(bit))
+#endif
+
+#define swap(a, b) { int16_t t = a; a = b; b = t; }
+
+class Adafruit_GFX : public Stream
+{
+
+public:
+    Adafruit_GFX(int16_t w, int16_t h)
+        : _rawWidth(w)
+        , _rawHeight(h)
+        , _width(w)
+        , _height(h)
+        , cursor_x(0)
+        , cursor_y(0)
+        , textcolor(WHITE)
+        , textbgcolor(BLACK)
+        , textsize(1)
+        , rotation(0)
+        , wrap(true)
+    {}; // Constructor
+
+    // This MUST be defined by the subclass:
+    virtual void drawPixel(int16_t x, int16_t y, uint16_t color) = 0;
+
+    virtual int _putc(int value) {
+        return writeChar(value);
+    };
+    virtual int _getc() {
+        return -1;
+    };
+
+    virtual void invertDisplay(bool i);
+
+    // These MAY be overridden by the subclass to provide device-specific
+    // optimized code.  Otherwise 'generic' versions are used.
+    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);
+    virtual void fillScreen(uint16_t color);
+
+    // These exist only with Adafruit_GFX (no subclass overrides)
+    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);
+
+    void setCursor(int16_t x, int16_t y) {
+        cursor_x = x;
+        cursor_y = y;
+    };
+    void setTextSize(uint8_t s) {
+        textsize = (s > 0) ? s : 1;
+    };
+    void setTextColor(uint16_t c) {
+        textcolor = c;
+        textbgcolor = c;
+    }
+    void setTextColor(uint16_t c, uint16_t b) {
+        textcolor = c;
+        textbgcolor = b;
+    };
+    void setTextWrap(bool w) {
+        wrap = w;
+    };
+
+    virtual size_t writeChar(uint8_t);
+
+    int16_t height(void) {
+        return _height;
+    };
+    int16_t width(void) {
+        return _width;
+    };
+
+    void setRotation(uint8_t r);
+    uint8_t getRotation(void) {
+        rotation%=4;
+        return rotation;
+    };
+
+protected:
+    int16_t _rawWidth, _rawHeight; // Display w/h as modified by current rotation
+    int16_t _width, _height; // Display w/h as modified by current rotation
+    int16_t cursor_x, cursor_y;
+    uint16_t    textcolor, textbgcolor;
+    uint8_t textsize,rotation;
+    bool    wrap; // If set, 'wrap' text at right edge of display
+};
+
+#endif // _ADAFRUIT_GFX_H