Diff: Adafruit_GFX.h

Revision:

2:7bcea45e60d8

Parent:

1:9db12505727a

Child:

9:ddb97c9850a2

--- a/Adafruit_GFX.h	Tue Jul 17 05:54:22 2012 +0000
+++ b/Adafruit_GFX.h	Sun Aug 19 23:03:40 2012 +0000
@@ -1,107 +1,111 @@
-/***********************************
-This is a our graphics core library, for all our displays. 
-We'll be adapting all the
-existing libaries to use this core to make updating, support 
-and upgrading easier!
-
-Adafruit invests time and resources providing this open source code, 
-please support Adafruit and open-source hardware by purchasing 
-products from Adafruit!
-
-Written by Limor Fried/Ladyada  for Adafruit Industries.  
-BSD license, check license.txt for more information
-All text above must be included in any redistribution
-****************************************/
-
-/*
- *  Modified by Neal Horman 7/14/2012 for use in LPC1768
- */
-
-#ifndef _ADAFRUIT_GFX_H_
-#define _ADAFRUIT_GFX_H_
-
-#ifndef swap
-#define swap(a, b) { int16_t t = a; a = b; b = t; }
-#endif
-
-#ifndef _BV
-#define _BV(bit) (1<<(bit))
-#endif
-
-#define BLACK 0
-#define WHITE 1
-
-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)
-        {};
-
-    // this must be defined by the subclass
-    virtual void drawPixel(int16_t x, int16_t y, uint16_t color) = 0;
-    // this is optional
-    virtual void invertDisplay(bool i) {};
-    
-    // Stream implementation - provides printf() interface
-    // You would otherwise be forced to use writeChar()
-    virtual int _putc(int value) { return writeChar(value); };
-    virtual int _getc() { return -1; };
-
-#ifdef WANT_ABSTRACTS
-    // these are 'generic' drawing functions, so we can share them!
-    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);
-
-    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);
-#endif
-
-    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);
-    size_t writeChar(uint8_t);
-
-    int16_t width(void) { return _width; };
-    int16_t height(void) { return _height; };
-
-    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; };
-
-    void setRotation(uint8_t r);
-    uint8_t getRotation(void) { rotation %= 4; return rotation; };
-
-protected:
-    int16_t  _rawWidth, _rawHeight;   // this is the 'raw' display w/h - never changes
-    int16_t  _width, _height; // dependent on rotation
-    int16_t  cursor_x, cursor_y;
-    uint16_t textcolor, textbgcolor;
-    uint8_t  textsize;
-    uint8_t  rotation;
-    bool  wrap; // If set, 'wrap' text at right edge of display
-};
-
-#endif
+/***********************************
+This is a our graphics core library, for all our displays. 
+We'll be adapting all the
+existing libaries to use this core to make updating, support 
+and upgrading easier!
+
+Adafruit invests time and resources providing this open source code, 
+please support Adafruit and open-source hardware by purchasing 
+products from Adafruit!
+
+Written by Limor Fried/Ladyada  for Adafruit Industries.  
+BSD license, check license.txt for more information
+All text above must be included in any redistribution
+****************************************/
+
+/*
+ *  Modified by Neal Horman 7/14/2012 for use in LPC1768
+ */
+
+#ifndef _ADAFRUIT_GFX_H_
+#define _ADAFRUIT_GFX_H_
+
+static inline void swap(int16_t &a, int16_t &b)
+{
+    int16_t t = a;
+    
+    a = b;
+    b = t;
+}
+
+#ifndef _BV
+#define _BV(bit) (1<<(bit))
+#endif
+
+#define BLACK 0
+#define WHITE 1
+
+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)
+        {};
+
+    // this must be defined by the subclass
+    virtual void drawPixel(int16_t x, int16_t y, uint16_t color) = 0;
+    // this is optional
+    virtual void invertDisplay(bool i) {};
+    
+    // Stream implementation - provides printf() interface
+    // You would otherwise be forced to use writeChar()
+    virtual int _putc(int value) { return writeChar(value); };
+    virtual int _getc() { return -1; };
+
+#ifdef WANT_ABSTRACTS
+    // these are 'generic' drawing functions, so we can share them!
+    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);
+
+    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);
+#endif
+
+    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);
+    size_t writeChar(uint8_t);
+
+    int16_t width(void) { return _width; };
+    int16_t height(void) { return _height; };
+
+    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; };
+
+    void setRotation(uint8_t r);
+    uint8_t getRotation(void) { rotation %= 4; return rotation; };
+
+protected:
+    int16_t  _rawWidth, _rawHeight;   // this is the 'raw' display w/h - never changes
+    int16_t  _width, _height; // dependent on rotation
+    int16_t  cursor_x, cursor_y;
+    uint16_t textcolor, textbgcolor;
+    uint8_t  textsize;
+    uint8_t  rotation;
+    bool  wrap; // If set, 'wrap' text at right edge of display
+};
+
+#endif