Rev 5 | Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4 | mjames | 1 | #include "libOLED/displayclass.H" |
| 2 | |||
| 3 | void |
||
| 4 | display_t::printString (font_t &font, char const *string, uint16_t length, |
||
| 5 | colour_t colour) |
||
| 6 | { |
||
| 7 | uint16_t const xSpacing = font.width () + 1; |
||
| 8 | for (uint16_t yt = 0; yt < font.height (); yt++) // iterate down scan lines |
||
| 9 | { |
||
| 10 | uint16_t ys = m_cursor_y + yt; |
||
| 11 | for (uint16_t xt = 0; xt < length; xt++) |
||
| 12 | { |
||
| 13 | unsigned char c = string[xt]; |
||
| 14 | uint16_t xs = xt * xSpacing + m_cursor_x; |
||
| 15 | for (uint16_t j = 0; j < font.spacing (); j++) |
||
| 16 | { |
||
| 17 | if (font.getPixel (c, j, yt) != 0) |
||
| 18 | drawPixel (j + xs, ys, colour); |
||
| 19 | } |
||
| 20 | } |
||
| 21 | } |
||
| 22 | // move the cursor. |
||
| 23 | m_cursor_x += xSpacing * length; |
||
| 24 | } |
||
| 25 | |||
| 26 | // scale is multiplied by 256 |
||
| 27 | void |
||
| 28 | display_t::printScaledString (font_t &font, char const *string, |
||
| 29 | uint16_t length, uint16_t scale, |
||
| 30 | colour_t colour) |
||
| 31 | { |
||
| 32 | uint16_t xt, yt, jt, curr_x=0; |
||
| 33 | uint16_t curr_y = m_cursor_y; |
||
| 34 | if (scale < 1) |
||
| 35 | return; |
||
| 36 | for (yt = 0; yt < font.height () * 256; yt += scale) // iterate down scan lines |
||
| 37 | { |
||
| 38 | // iterate along the string |
||
| 39 | // local x plotting coordinate |
||
| 40 | curr_x = m_cursor_x; |
||
| 41 | for (xt = 0; xt < length; xt++) |
||
| 42 | { |
||
| 43 | for (jt = 0; jt < (font.spacing ()) * 256; jt += scale) |
||
| 44 | { |
||
| 45 | unsigned char c = (string[xt]); |
||
| 46 | if (font.getPixel (c, jt / 256, yt / 256)) |
||
| 47 | drawPixel (curr_x, curr_y, colour); |
||
| 48 | curr_x++; |
||
| 49 | } |
||
| 50 | } |
||
| 51 | curr_y++; |
||
| 52 | } |
||
| 53 | if (curr_x > width ()) |
||
| 54 | { |
||
| 55 | curr_x = 0; |
||
| 56 | } |
||
| 57 | m_cursor_x = curr_x; |
||
| 58 | } |
||
| 59 |