diff options
Diffstat (limited to 'write.c')
| -rw-r--r-- | write.c | 107 |
1 files changed, 105 insertions, 2 deletions
@@ -205,6 +205,109 @@ readULONG(FILE *out) return ntohl(val); } +void +fontMetrics(FontPtr font) +{ + int i, rc; + double sumAwidth = 0; + unsigned count = 0; + + font->metrics.maxAwidth = 0; + font->metrics.maxX = -10000 * TWO_SIXTEENTH; + font->metrics.maxY = -10000 * TWO_SIXTEENTH; + font->metrics.minX = 10000 * TWO_SIXTEENTH; + font->metrics.minY = 10000 * TWO_SIXTEENTH; + + for(i = 0; i < FONT_CODES; i++) { + int awidth, x0, y0, x1, y1; + rc = glyphMetrics(font, i, &awidth, &x0, &y0, &x1, &y1); + if(rc < 0) + continue; + + if(awidth > font->metrics.maxAwidth) font->metrics.maxAwidth = awidth; + if(x0 < font->metrics.minX) font->metrics.minX = x0; + if(y0 < font->metrics.minY) font->metrics.minY = y0; + if(x1 > font->metrics.maxX) font->metrics.maxX = x1; + if(y1 > font->metrics.maxY) font->metrics.maxY = y1; + + if(awidth > 0) { + sumAwidth += awidth; + count++; + } + } + + if (count) font->metrics.awidth = sumAwidth / count; + + font->metrics.height = UNDEF /* TODO */; + + if(font->pxMetrics.ascent == UNDEF) { + font->metrics.ascent = font->metrics.maxY; + font->pxMetrics.ascent = + font->metrics.ascent + * font->pxMetrics.height / TWO_SIXTEENTH; + } + else + font->metrics.ascent = + font->pxMetrics.ascent + * TWO_SIXTEENTH / font->pxMetrics.height; + + if(font->pxMetrics.descent == UNDEF) { + font->metrics.descent = font->metrics.minY; + font->pxMetrics.descent = + font->metrics.descent + * font->pxMetrics.height / TWO_SIXTEENTH; + } + else + font->metrics.descent = + font->pxMetrics.descent + * TWO_SIXTEENTH / font->pxMetrics.height; + + fprintf(stderr, "ascent %d ascentpx %d descent %d descentpx %d\n", + font->metrics.ascent, + font->pxMetrics.ascent, + font->metrics.descent, + font->pxMetrics.descent); + + if(font->pxMetrics.capHeight == UNDEF) + /* TODO get ascent of letter 'X' - how to do lookups of ascii codes ? */ + font->metrics.capHeight = font->metrics.ascent; + else + font->metrics.capHeight = + font->pxMetrics.capHeight + * TWO_SIXTEENTH / font->pxMetrics.height; + + if(font->pxMetrics.xHeight == UNDEF) + /* TODO get ascent of letter 'x' - how to do lookups of ascii codes ? */ + font->metrics.xHeight = font->metrics.ascent * 2 / 3; + else + font->metrics.xHeight = + font->pxMetrics.xHeight + * TWO_SIXTEENTH / font->pxMetrics.height; + + if(font->pxMetrics.underlinePosition == UNDEF) + font->metrics.underlinePosition = - font->metrics.descent * 2; + else { + fprintf(stderr, "Setting underlinePosition. pxMetrics.underlinePosition is %d. height is %d\n", + font->pxMetrics.underlinePosition, font->pxMetrics.height); + font->metrics.underlinePosition = + font->pxMetrics.underlinePosition + * TWO_SIXTEENTH / font->pxMetrics.height; + } + + if(font->pxMetrics.underlineThickness == UNDEF) + /* TODO: this could be refined according to + * X Logical Font Description Conventions (xlfd.txt) + * by also considering the font weight. */ + /* make sure thickness is at least one pixel. */ + font->metrics.underlineThickness = + TWO_SIXTEENTH + / (font->pxMetrics.height < 9 ? font->pxMetrics.height : 9); + else + font->metrics.underlineThickness = + font->pxMetrics.underlineThickness + * TWO_SIXTEENTH / font->pxMetrics.height; +} + int writeFile(char *filename, FontPtr font) { @@ -218,8 +321,6 @@ writeFile(char *filename, FontPtr font) int offset[15], length[15]; StrikePtr strike; - fontMetrics(font, &font->metrics); - out = fopen(filename, "wb+"); if(out == NULL) return -1; @@ -230,6 +331,8 @@ writeFile(char *filename, FontPtr font) return -1; } + fontMetrics(font); + write_error_occurred = 0; read_error_occurred = 0; |