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GraphicsDisplay.h@29:422616aa04bd, 2014-01-19 (annotated)

Committer:
WiredHome
Date:
Sun Jan 19 04:24:16 2014 +0000
Revision:
29:422616aa04bd
Parent:
19:3f82c1161fd2
Child:
31:c72e12cd5c67
Initial support for soft fonts compatible with mikroe font creator.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dreschpe 0:de9d1462a835 1 /* mbed GraphicsDisplay Display Library Base Class
dreschpe 0:de9d1462a835 2 * Copyright (c) 2007-2009 sford
dreschpe 0:de9d1462a835 3 * Released under the MIT License: http://mbed.org/license/mit
dreschpe 0:de9d1462a835 4 *
dreschpe 0:de9d1462a835 5 * A library for providing a common base class for Graphics displays
dreschpe 0:de9d1462a835 6 * To port a new display, derive from this class and implement
dreschpe 0:de9d1462a835 7 * the constructor (setup the display), pixel (put a pixel
dreschpe 0:de9d1462a835 8 * at a location), width and height functions. Everything else
dreschpe 0:de9d1462a835 9 * (locate, printf, putc, cls, window, putp, fill, blit, blitbit)
dreschpe 0:de9d1462a835 10 * will come for free. You can also provide a specialised implementation
dreschpe 0:de9d1462a835 11 * of window and putp to speed up the results
dreschpe 0:de9d1462a835 12 */
dreschpe 0:de9d1462a835 13
dreschpe 0:de9d1462a835 14 #ifndef MBED_GRAPHICSDISPLAY_H
dreschpe 0:de9d1462a835 15 #define MBED_GRAPHICSDISPLAY_H
dreschpe 0:de9d1462a835 16
dreschpe 0:de9d1462a835 17 #include "TextDisplay.h"
dreschpe 0:de9d1462a835 18
dreschpe 0:de9d1462a835 19 class GraphicsDisplay : public TextDisplay {
dreschpe 0:de9d1462a835 20
dreschpe 0:de9d1462a835 21 public:
dreschpe 0:de9d1462a835 22
dreschpe 0:de9d1462a835 23 GraphicsDisplay(const char* name);
dreschpe 0:de9d1462a835 24
WiredHome 19:3f82c1161fd2 25 virtual RetCode_t pixel(unsigned int x, unsigned int y, color_t colour) = 0;
dreschpe 0:de9d1462a835 26 virtual int width() = 0;
dreschpe 0:de9d1462a835 27 virtual int height() = 0;
dreschpe 0:de9d1462a835 28
dreschpe 11:9bb71766cafc 29 virtual void window(unsigned int x,unsigned int y,unsigned int w,unsigned int h);
dreschpe 0:de9d1462a835 30 virtual void putp(int colour);
dreschpe 0:de9d1462a835 31
WiredHome 19:3f82c1161fd2 32 virtual RetCode_t cls();
dreschpe 0:de9d1462a835 33 virtual void fill(int x, int y, int w, int h, int colour);
WiredHome 29:422616aa04bd 34 virtual void blit(int x, int y, int w, int h, const int * colour);
WiredHome 29:422616aa04bd 35
WiredHome 29:422616aa04bd 36 virtual int blitbit(int x, int y, int w, int h, const char * colour);
dreschpe 0:de9d1462a835 37
WiredHome 29:422616aa04bd 38 /// This method transfers one character from the external font data
WiredHome 29:422616aa04bd 39 /// to the screen.
WiredHome 29:422616aa04bd 40 ///
WiredHome 29:422616aa04bd 41 /// @note the font data is in a special format as generate by
WiredHome 29:422616aa04bd 42 /// the mikroe font creator. \\
WiredHome 29:422616aa04bd 43 /// See http://www.mikroe.com/glcd-font-creator/
WiredHome 29:422616aa04bd 44 ///
WiredHome 29:422616aa04bd 45 /// @param x is the horizontal pixel coordinate
WiredHome 29:422616aa04bd 46 /// @param y is the vertical pixel coordinate
WiredHome 29:422616aa04bd 47 /// @param fontTable is the base of the table which has the metrics
WiredHome 29:422616aa04bd 48 /// @param fontChar is the start of that record in the table for the char (e.g. 'A' - 'Z')
WiredHome 29:422616aa04bd 49 /// @returns how far the cursor should advance to the right in pixels
WiredHome 29:422616aa04bd 50 ///
WiredHome 29:422616aa04bd 51 virtual int fontblit(int x, int y, const unsigned char * fontTable, const unsigned char * fontChar);
WiredHome 29:422616aa04bd 52
WiredHome 29:422616aa04bd 53 /// prints one character at the specified coordinates.
WiredHome 29:422616aa04bd 54 ///
WiredHome 29:422616aa04bd 55 /// This will print the character at the specified pixel coordinates.
WiredHome 29:422616aa04bd 56 ///
WiredHome 29:422616aa04bd 57 /// @param x is the horizontal offset in pixels.
WiredHome 29:422616aa04bd 58 /// @param y is the vertical offset in pixels.
WiredHome 29:422616aa04bd 59 /// @param value is the character to print.
WiredHome 29:422616aa04bd 60 /// @returns number of pixels to index to the right if a character was printed, 0 otherwise.
WiredHome 29:422616aa04bd 61 ///
WiredHome 29:422616aa04bd 62 virtual int character(int x, int y, int value);
WiredHome 29:422616aa04bd 63
dreschpe 0:de9d1462a835 64 virtual int columns();
dreschpe 0:de9d1462a835 65 virtual int rows();
WiredHome 29:422616aa04bd 66 virtual RetCode_t set_font(const unsigned char * font = NULL);
dreschpe 0:de9d1462a835 67
dreschpe 0:de9d1462a835 68 protected:
WiredHome 29:422616aa04bd 69 const unsigned char * font; ///< reference to an external font somewhere in memory
WiredHome 29:422616aa04bd 70
dreschpe 0:de9d1462a835 71 // pixel location
dreschpe 0:de9d1462a835 72 short _x;
dreschpe 0:de9d1462a835 73 short _y;
dreschpe 0:de9d1462a835 74
dreschpe 0:de9d1462a835 75 // window location
dreschpe 0:de9d1462a835 76 short _x1;
dreschpe 0:de9d1462a835 77 short _x2;
dreschpe 0:de9d1462a835 78 short _y1;
dreschpe 0:de9d1462a835 79 short _y2;
dreschpe 0:de9d1462a835 80 };
dreschpe 0:de9d1462a835 81
dreschpe 0:de9d1462a835 82 #endif