diff options
Diffstat (limited to 'struct.c')
| -rw-r--r-- | struct.c | 89 |
1 files changed, 0 insertions, 89 deletions
@@ -483,92 +483,3 @@ glyphMetrics(FontPtr font, int code, return -1; } - -void -fontMetrics(FontPtr font, MetricsPtr metrics) -{ - int i, rc; - double sumAwidth = 0; - unsigned count = 0; - - metrics->height = UNDEF /* TODO */; - metrics->maxAwidth = 0; - metrics->maxX = -10000 * TWO_SIXTEENTH; - metrics->maxY = -10000 * TWO_SIXTEENTH; - metrics->minX = 10000 * TWO_SIXTEENTH; - metrics->minY = 10000 * TWO_SIXTEENTH; - metrics->ascent = UNDEF; - metrics->descent = UNDEF; - metrics->underlinePosition = UNDEF; - metrics->underlineThickness = UNDEF; - - 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 > metrics->maxAwidth) metrics->maxAwidth = awidth; - if(x0 < metrics->minX) metrics->minX = x0; - if(y0 < metrics->minY) metrics->minY = y0; - if(x1 > metrics->maxX) metrics->maxX = x1; - if(y1 > metrics->maxY) metrics->maxY = y1; - - if(awidth > 0) { - sumAwidth += awidth; - count++; - } - } - - if (count) metrics->awidth = sumAwidth / count; - - if(font->pxMetrics.ascent == UNDEF) - metrics->ascent = metrics->maxY; - else - metrics->ascent = - font->pxMetrics.ascent - * TWO_SIXTEENTH / font->pxMetrics.height; - - if(font->pxMetrics.descent == UNDEF) - metrics->descent = metrics->minY; - else - metrics->descent = - font->pxMetrics.descent - * TWO_SIXTEENTH / font->pxMetrics.height; - - if(font->pxMetrics.capHeight == UNDEF) - /* TODO get ascent of letter 'X' - how to do lookups of ascii codes ? */ - metrics->capHeight = metrics->ascent; - else - 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 ? */ - metrics->xHeight = metrics->ascent * 2 / 3; - else - metrics->xHeight = - font->pxMetrics.xHeight - * TWO_SIXTEENTH / font->pxMetrics.height; - - if(font->pxMetrics.underlinePosition == UNDEF) - metrics->underlinePosition = - metrics->descent * 2; - else - 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. */ - metrics->underlineThickness = - TWO_SIXTEENTH - / (font->pxMetrics.height < 9 ? font->pxMetrics.height : 9); - else - metrics->underlineThickness = - font->pxMetrics.underlineThickness - * TWO_SIXTEENTH / font->pxMetrics.height; -} |