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annotate dmtext_bm.c @ 64:ad1ef3f0d474

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More work on the text subsystem.
author Matti Hamalainen <ccr@tnsp.org>
date Mon, 01 Oct 2012 11:03:10 +0300
parents dmtext.c@3d9da937db69
children 03375aa0ef2b
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1 /*
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2 * DMLib
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3 * -- Bitmap and TTF text & font support
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4 * Programmed and designed by Matti 'ccr' Hamalainen
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5 * (C) Copyright 2012 Tecnic Software productions (TNSP)
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6 */
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7 #include "dmtext.h"
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10 void dmDrawBMTextConst(SDL_Surface *screen, DMBitmapFont *font, int mode, int xc, int yc, const char *fmt)
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11 {
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12 const char *ptr = fmt;
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13 DMScaledBlitFunc blit = dmGetScaledBlitFunc(screen->format, font->glyphs[0]->format, mode);
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14 while (*ptr)
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15 {
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16 char ch = *ptr++;
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17
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18 if (isprint(ch) && ch != ' ' && ch != '\t')
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19 {
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20 SDL_Surface *glyph = font->glyphs[(unsigned char) ch];
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21 blit(glyph, xc, yc, glyph->w, glyph->h, screen);
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22 xc += glyph->w;
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23 }
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24 else
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25 xc += font->width;
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26 }
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27 }
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30 void dmDrawBMTextVA(SDL_Surface *screen, DMBitmapFont *font, int mode, int xc, int yc, const char *fmt, va_list ap)
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31 {
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32 char *tmp = dm_strdup_vprintf(fmt, ap);
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33 if (tmp != NULL)
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34 {
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35 dmDrawBMTextConst(screen, font, mode, xc, yc, tmp);
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36 dmFree(tmp);
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37 }
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38 }
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41 void dmDrawBMText(SDL_Surface *screen, DMBitmapFont *font, int mode, int xc, int yc, const char *fmt, ...)
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42 {
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43 va_list ap;
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45 va_start(ap, fmt);
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46 dmDrawBMTextVA(screen, font, mode, xc, yc, fmt, ap);
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47 va_end(ap);
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48 }
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