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Show/hide line numbers GraphicsDisplay.h Source File

GraphicsDisplay.h

00001 /* mbed GraphicsDisplay Display Library Base Class
00002  * Copyright (c) 2007-2009 sford
00003  * Released under the MIT License: http://mbed.org/license/mit
00004  *
00005  * A library for providing a common base class for Graphics displays
00006  * To port a new display, derive from this class and implement
00007  * the constructor (setup the display), pixel (put a pixel
00008  * at a location), width and height functions. Everything else
00009  * (locate, printf, putc, cls, window, putp, fill, blit, blitbit) 
00010  * will come for free. You can also provide a specialised implementation
00011  * of window and putp to speed up the results
00012  */
00013 
00014 #ifndef MBED_GRAPHICSDISPLAY_H
00015 #define MBED_GRAPHICSDISPLAY_H
00016 
00017 #include "../screen/TextDisplay.h"
00018 
00019 class GraphicsDisplay : public TextDisplay {
00020 
00021 public:         
00022           
00023     GraphicsDisplay(const char* name);
00024      
00025     virtual void pixel(int x, int y, int colour) = 0;
00026     virtual int width() = 0;
00027     virtual int height() = 0;
00028         
00029     virtual void window(int x, int y, int w, int h);
00030     virtual void putp(int colour);
00031     
00032     virtual void cls();
00033     virtual void rect(int x0, int y0, int x1, int y1, int colour);
00034     virtual void fillrect(int x0, int y0, int w, int h, int colour);
00035     // fill equals fillrect, name has been kept to not break compatibility
00036     virtual void fill(int x, int y, int w, int h, int colour);
00037     
00038     // To draw circle using ellipse, set a and b to the same values
00039     virtual void ellipse(int xc, int yc, int a, int b, unsigned int colour);
00040     virtual void fillellipse(int xc, int yc, int a, int b, unsigned int colour);
00041     virtual void circle(int x, int y, int r, int colour);
00042     
00043     virtual void hline(int x0, int x1, int y, int colour);
00044     virtual void vline(int x0, int y0, int y1, int colour);
00045     virtual void line(int x0, int y0, int x1, int y1, int colour);
00046     
00047     virtual void blit(int x, int y, int w, int h, const int *colour);    
00048     virtual void blitbit(int x, int y, int w, int h, const char* colour);
00049     
00050     virtual void character(int column, int row, int value);
00051     virtual int columns();
00052     virtual int rows();
00053     
00054 protected:
00055 
00056     // pixel location
00057     short _x;
00058     short _y;
00059     
00060     // window location
00061     short _x1;
00062     short _x2;
00063     short _y1;
00064     short _y2;
00065 
00066 };
00067 
00068 #endif