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TextDisplay.cpp@0:cf17b1f16335, 2017-10-24 (annotated)
- Committer:
- sergionatan
- Date:
- Tue Oct 24 20:12:54 2017 +0000
- Revision:
- 0:cf17b1f16335
Initial commit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
sergionatan | 0:cf17b1f16335 | 1 | // ST7735 8 Bit SPI Library |
sergionatan | 0:cf17b1f16335 | 2 | |
sergionatan | 0:cf17b1f16335 | 3 | #include "TextDisplay.h" |
sergionatan | 0:cf17b1f16335 | 4 | |
sergionatan | 0:cf17b1f16335 | 5 | TextDisplay::TextDisplay(const char *name) : Stream(name){ |
sergionatan | 0:cf17b1f16335 | 6 | _row = 0; |
sergionatan | 0:cf17b1f16335 | 7 | _column = 0; |
sergionatan | 0:cf17b1f16335 | 8 | if (name == NULL) { |
sergionatan | 0:cf17b1f16335 | 9 | _path = NULL; |
sergionatan | 0:cf17b1f16335 | 10 | } else { |
sergionatan | 0:cf17b1f16335 | 11 | _path = new char[strlen(name) + 2]; |
sergionatan | 0:cf17b1f16335 | 12 | sprintf(_path, "/%s", name); |
sergionatan | 0:cf17b1f16335 | 13 | } |
sergionatan | 0:cf17b1f16335 | 14 | } |
sergionatan | 0:cf17b1f16335 | 15 | |
sergionatan | 0:cf17b1f16335 | 16 | int TextDisplay::_putc(int value) { |
sergionatan | 0:cf17b1f16335 | 17 | if(value == '\n') { |
sergionatan | 0:cf17b1f16335 | 18 | _column = 0; |
sergionatan | 0:cf17b1f16335 | 19 | _row++; |
sergionatan | 0:cf17b1f16335 | 20 | if(_row >= rows()) { |
sergionatan | 0:cf17b1f16335 | 21 | _row = 0; |
sergionatan | 0:cf17b1f16335 | 22 | } |
sergionatan | 0:cf17b1f16335 | 23 | } else { |
sergionatan | 0:cf17b1f16335 | 24 | character(_column, _row, value); |
sergionatan | 0:cf17b1f16335 | 25 | _column++; |
sergionatan | 0:cf17b1f16335 | 26 | if(_column >= columns()) { |
sergionatan | 0:cf17b1f16335 | 27 | _column = 0; |
sergionatan | 0:cf17b1f16335 | 28 | _row++; |
sergionatan | 0:cf17b1f16335 | 29 | if(_row >= rows()) { |
sergionatan | 0:cf17b1f16335 | 30 | _row = 0; |
sergionatan | 0:cf17b1f16335 | 31 | } |
sergionatan | 0:cf17b1f16335 | 32 | } |
sergionatan | 0:cf17b1f16335 | 33 | } |
sergionatan | 0:cf17b1f16335 | 34 | return value; |
sergionatan | 0:cf17b1f16335 | 35 | } |
sergionatan | 0:cf17b1f16335 | 36 | void TextDisplay::cls() { |
sergionatan | 0:cf17b1f16335 | 37 | locate(0, 0); |
sergionatan | 0:cf17b1f16335 | 38 | for(int i=0; i<columns()*rows(); i++) { |
sergionatan | 0:cf17b1f16335 | 39 | putc(' '); |
sergionatan | 0:cf17b1f16335 | 40 | } |
sergionatan | 0:cf17b1f16335 | 41 | } |
sergionatan | 0:cf17b1f16335 | 42 | void TextDisplay::locate(int column, int row) { |
sergionatan | 0:cf17b1f16335 | 43 | _column = column; |
sergionatan | 0:cf17b1f16335 | 44 | _row = row; |
sergionatan | 0:cf17b1f16335 | 45 | } |
sergionatan | 0:cf17b1f16335 | 46 | int TextDisplay::_getc() { |
sergionatan | 0:cf17b1f16335 | 47 | return -1; |
sergionatan | 0:cf17b1f16335 | 48 | } |
sergionatan | 0:cf17b1f16335 | 49 | void TextDisplay::foreground(uint16_t colour) { |
sergionatan | 0:cf17b1f16335 | 50 | _foreground = colour; |
sergionatan | 0:cf17b1f16335 | 51 | } |
sergionatan | 0:cf17b1f16335 | 52 | void TextDisplay::background(uint16_t colour) { |
sergionatan | 0:cf17b1f16335 | 53 | _background = colour; |
sergionatan | 0:cf17b1f16335 | 54 | } |
sergionatan | 0:cf17b1f16335 | 55 | bool TextDisplay::claim (FILE *stream) { |
sergionatan | 0:cf17b1f16335 | 56 | if ( _path == NULL) { |
sergionatan | 0:cf17b1f16335 | 57 | fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n"); |
sergionatan | 0:cf17b1f16335 | 58 | return false; |
sergionatan | 0:cf17b1f16335 | 59 | } |
sergionatan | 0:cf17b1f16335 | 60 | if (freopen(_path, "w", stream) == NULL) { |
sergionatan | 0:cf17b1f16335 | 61 | // Failed, should not happen |
sergionatan | 0:cf17b1f16335 | 62 | return false; |
sergionatan | 0:cf17b1f16335 | 63 | } |
sergionatan | 0:cf17b1f16335 | 64 | // make sure we use line buffering |
sergionatan | 0:cf17b1f16335 | 65 | setvbuf(stdout, NULL, _IOLBF, columns()); |
sergionatan | 0:cf17b1f16335 | 66 | return true; |
sergionatan | 0:cf17b1f16335 | 67 | } |