Mercurial > hp34970-firmware / file comparison
comparison: lib/unigraphic/TextDisplay.h
lib/unigraphic/TextDisplay.h
- changeset 28
- 424d792fea4f
- parent 5
- f1c85c2500f2
- child 55
- 694e5030b0e9
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| 27:8f2be7aaec00 | 28:424d792fea4f |
|---|---|
| 7 * the constructor (setup the display), character (put a character | 7 * the constructor (setup the display), character (put a character |
| 8 * at a location), rows and columns (number of rows/cols) functions. | 8 * at a location), rows and columns (number of rows/cols) functions. |
| 9 * Everything else (locate, printf, putc, cls) will come for free | 9 * Everything else (locate, printf, putc, cls) will come for free |
| 10 * | 10 * |
| 11 * The model is the display will wrap at the right and bottom, so you can | 11 * The model is the display will wrap at the right and bottom, so you can |
| 12 * keep writing and will always get valid characters. The location is | 12 * keep writing and will always get valid characters. The location is |
| 13 * maintained internally to the class to make this easy | 13 * maintained internally to the class to make this easy |
| 14 */ | 14 */ |
| 15 | 15 |
| 16 #ifndef MBED_TEXTDISPLAY_H | 16 #ifndef MBED_TEXTDISPLAY_H |
| 17 #define MBED_TEXTDISPLAY_H | 17 #define MBED_TEXTDISPLAY_H |
| 18 | 18 |
| 19 #include "mbed.h" | 19 #include <mbed.h> |
| 20 #include <Stream.h> | |
| 21 | |
| 20 | 22 |
| 21 /** A common base class for Text displays | 23 /** A common base class for Text displays |
| 22 */ | 24 */ |
| 23 class TextDisplay : public Stream { | 25 class TextDisplay : public Stream { |
| 24 public: | 26 public: |
| 48 /** return number of columns on TextDisplay | 50 /** return number of columns on TextDisplay |
| 49 * @result number of columns | 51 * @result number of columns |
| 50 * @note this method must be supported in the derived class. | 52 * @note this method must be supported in the derived class. |
| 51 */ | 53 */ |
| 52 virtual int columns() = 0; | 54 virtual int columns() = 0; |
| 53 | 55 |
| 54 // functions that come for free, but can be overwritten | 56 // functions that come for free, but can be overwritten |
| 55 // ---------------------------------------------------- | 57 // ---------------------------------------------------- |
| 56 /** redirect output from a stream (stoud, sterr) to display | 58 /** redirect output from a stream (stoud, sterr) to display |
| 57 * @param stream stream that shall be redirected to the TextDisplay | 59 * @param stream stream that shall be redirected to the TextDisplay |
| 58 * @note this method may be overridden in a derived class. | 60 * @note this method may be overridden in a derived class. |
| 85 */ | 87 */ |
| 86 virtual void background(uint16_t colour); | 88 virtual void background(uint16_t colour); |
| 87 | 89 |
| 88 // putc (from Stream) | 90 // putc (from Stream) |
| 89 // printf (from Stream) | 91 // printf (from Stream) |
| 90 | 92 |
| 91 protected: | 93 protected: |
| 92 | 94 |
| 93 virtual int _putc(int value); | 95 virtual int _putc(int value); |
| 94 virtual int _getc(); | 96 virtual int _getc(); |
| 95 | 97 |
