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Dependencies: BLE_API mbed-dev-bin nRF51822
Fork of microbit-dal by
MicroBitFont.h
00001 /* 00002 The MIT License (MIT) 00003 00004 Copyright (c) 2016 British Broadcasting Corporation. 00005 This software is provided by Lancaster University by arrangement with the BBC. 00006 00007 Permission is hereby granted, free of charge, to any person obtaining a 00008 copy of this software and associated documentation files (the "Software"), 00009 to deal in the Software without restriction, including without limitation 00010 the rights to use, copy, modify, merge, publish, distribute, sublicense, 00011 and/or sell copies of the Software, and to permit persons to whom the 00012 Software is furnished to do so, subject to the following conditions: 00013 00014 The above copyright notice and this permission notice shall be included in 00015 all copies or substantial portions of the Software. 00016 00017 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00018 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00019 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 00020 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00021 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 00022 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 00023 DEALINGS IN THE SOFTWARE. 00024 */ 00025 00026 #ifndef MICROBIT_FONT_H 00027 #define MICROBIT_FONT_H 00028 00029 #include "mbed.h" 00030 #include "MicroBitConfig.h" 00031 00032 #define MICROBIT_FONT_WIDTH 5 00033 #define MICROBIT_FONT_HEIGHT 5 00034 #define MICROBIT_FONT_ASCII_START 32 00035 #define MICROBIT_FONT_ASCII_END 126 00036 00037 /** 00038 * Class definition for a MicrobitFont 00039 * This class represents a font that can be used by the display to render text. 00040 * 00041 * A MicroBitFont is 5x5. 00042 * Each Row is represented by a byte in the array. 00043 * 00044 * Row Format: 00045 * ================================================================ 00046 * | Bit 7 | Bit 6 | Bit 5 | Bit 4 | Bit 3 | Bit 2 | Bit 1 | Bit 0 | 00047 * ================================================================ 00048 * | N/A | N/A | N/A | Col 1 | Col 2 | Col 3 | Col 4 | Col 5 | 00049 * | 0x80 | 0x40 | 0x20 | 0x10 | 0x08 | 0x04 | 0x02 | 0x01 | 00050 * 00051 * Example: { 0x08, 0x08, 0x08, 0x0, 0x08 } 00052 * 00053 * The above will produce an exclaimation mark on the second column in form the left. 00054 * 00055 * We could compress further, but the complexity of decode would likely outweigh the gains. 00056 */ 00057 class MicroBitFont 00058 { 00059 public: 00060 00061 static const unsigned char* defaultFont; 00062 static MicroBitFont systemFont; 00063 00064 const unsigned char* characters; 00065 00066 int asciiEnd; 00067 00068 /** 00069 * Constructor. 00070 * 00071 * Sets the font represented by this font object. 00072 * 00073 * @param font A pointer to the beginning of the new font. 00074 * 00075 * @param asciiEnd the char value at which this font finishes. 00076 */ 00077 MicroBitFont(const unsigned char* font, int asciiEnd = MICROBIT_FONT_ASCII_END); 00078 00079 /** 00080 * Default Constructor. 00081 * 00082 * Configures the default font for the display to use. 00083 */ 00084 MicroBitFont(); 00085 00086 /** 00087 * Modifies the current system font to the given instance of MicroBitFont. 00088 * 00089 * @param font the new font that will be used to render characters on the display. 00090 */ 00091 static void setSystemFont(MicroBitFont font); 00092 00093 /** 00094 * Retreives the font object used for rendering characters on the display. 00095 */ 00096 static MicroBitFont getSystemFont(); 00097 00098 }; 00099 00100 #endif
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