#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <X11/fonts/fntfilst.h>
#include <X11/fonts/bitmap.h>
#include <X11/fonts/bdfint.h>
#ifndef MAXSHORT
#define MAXSHORT 32767
#endif
#ifndef MINSHORT
#define MINSHORT -32768
#endif
static xCharInfo initMinMetrics = {
MAXSHORT, MAXSHORT, MAXSHORT, MAXSHORT, MAXSHORT, 0xFFFF};
static xCharInfo initMaxMetrics = {
MINSHORT, MINSHORT, MINSHORT, MINSHORT, MINSHORT, 0x0000};
#define MINMAX(field,ci) \
if (minbounds->field > (ci)->field) \
minbounds->field = (ci)->field; \
if (maxbounds->field < (ci)->field) \
maxbounds->field = (ci)->field;
#define COMPUTE_MINMAX(ci) \
if ((ci)->ascent || (ci)->descent || \
(ci)->leftSideBearing || (ci)->rightSideBearing || \
(ci)->characterWidth) \
{ \
MINMAX(ascent, (ci)); \
MINMAX(descent, (ci)); \
MINMAX(leftSideBearing, (ci)); \
MINMAX(rightSideBearing, (ci)); \
MINMAX(characterWidth, (ci)); \
}
void
bitmapComputeFontBounds(FontPtr pFont)
{
BitmapFontPtr bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
int nchars;
int r,
c;
CharInfoPtr ci;
int maxOverlap;
int overlap;
xCharInfo *minbounds,
*maxbounds;
int i;
int numneg = 0, numpos = 0;
if (bitmapFont->bitmapExtra) {
minbounds = &bitmapFont->bitmapExtra->info.minbounds;
maxbounds = &bitmapFont->bitmapExtra->info.maxbounds;
} else {
minbounds = &pFont->info.minbounds;
maxbounds = &pFont->info.maxbounds;
}
*minbounds = initMinMetrics;
*maxbounds = initMaxMetrics;
maxOverlap = MINSHORT;
nchars = bitmapFont->num_chars;
for (i = 0, ci = bitmapFont->metrics; i < nchars; i++, ci++) {
COMPUTE_MINMAX(&ci->metrics);
if (ci->metrics.characterWidth < 0)
numneg++;
else
numpos++;
minbounds->attributes &= ci->metrics.attributes;
maxbounds->attributes |= ci->metrics.attributes;
overlap = ci->metrics.rightSideBearing - ci->metrics.characterWidth;
if (maxOverlap < overlap)
maxOverlap = overlap;
}
if (bitmapFont->bitmapExtra) {
if (numneg > numpos)
bitmapFont->bitmapExtra->info.drawDirection = RightToLeft;
else
bitmapFont->bitmapExtra->info.drawDirection = LeftToRight;
bitmapFont->bitmapExtra->info.maxOverlap = maxOverlap;
minbounds = &pFont->info.minbounds;
maxbounds = &pFont->info.maxbounds;
*minbounds = initMinMetrics;
*maxbounds = initMaxMetrics;
i = 0;
maxOverlap = MINSHORT;
for (r = pFont->info.firstRow; r <= pFont->info.lastRow; r++) {
for (c = pFont->info.firstCol; c <= pFont->info.lastCol; c++) {
ci = ACCESSENCODING(bitmapFont->encoding, i);
if (ci) {
COMPUTE_MINMAX(&ci->metrics);
if (ci->metrics.characterWidth < 0)
numneg++;
else
numpos++;
minbounds->attributes &= ci->metrics.attributes;
maxbounds->attributes |= ci->metrics.attributes;
overlap = ci->metrics.rightSideBearing -
ci->metrics.characterWidth;
if (maxOverlap < overlap)
maxOverlap = overlap;
}
i++;
}
}
}
if (numneg > numpos)
pFont->info.drawDirection = RightToLeft;
else
pFont->info.drawDirection = LeftToRight;
pFont->info.maxOverlap = maxOverlap;
}
void
bitmapComputeFontInkBounds(FontPtr pFont)
{
BitmapFontPtr bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
int nchars;
int r,
c;
CharInfoPtr cit;
xCharInfo *ci;
int offset;
xCharInfo *minbounds,
*maxbounds;
int i;
if (!bitmapFont->ink_metrics) {
if (bitmapFont->bitmapExtra) {
bitmapFont->bitmapExtra->info.ink_minbounds = bitmapFont->bitmapExtra->info.minbounds;
bitmapFont->bitmapExtra->info.ink_maxbounds = bitmapFont->bitmapExtra->info.maxbounds;
}
pFont->info.ink_minbounds = pFont->info.minbounds;
pFont->info.ink_maxbounds = pFont->info.maxbounds;
} else {
if (bitmapFont->bitmapExtra) {
minbounds = &bitmapFont->bitmapExtra->info.ink_minbounds;
maxbounds = &bitmapFont->bitmapExtra->info.ink_maxbounds;
} else {
minbounds = &pFont->info.ink_minbounds;
maxbounds = &pFont->info.ink_maxbounds;
}
*minbounds = initMinMetrics;
*maxbounds = initMaxMetrics;
nchars = bitmapFont->num_chars;
for (i = 0, ci = bitmapFont->ink_metrics; i < nchars; i++, ci++) {
COMPUTE_MINMAX(ci);
minbounds->attributes &= ci->attributes;
maxbounds->attributes |= ci->attributes;
}
if (bitmapFont->bitmapExtra) {
minbounds = &pFont->info.ink_minbounds;
maxbounds = &pFont->info.ink_maxbounds;
*minbounds = initMinMetrics;
*maxbounds = initMaxMetrics;
i=0;
for (r = pFont->info.firstRow; r <= pFont->info.lastRow; r++) {
for (c = pFont->info.firstCol; c <= pFont->info.lastCol; c++) {
cit = ACCESSENCODING(bitmapFont->encoding, i);
if (cit) {
offset = cit - bitmapFont->metrics;
ci = &bitmapFont->ink_metrics[offset];
COMPUTE_MINMAX(ci);
minbounds->attributes &= ci->attributes;
maxbounds->attributes |= ci->attributes;
}
i++;
}
}
}
}
}
Bool
bitmapAddInkMetrics(FontPtr pFont)
{
BitmapFontPtr bitmapFont;
int i;
bitmapFont = (BitmapFontPtr) pFont->fontPrivate;
bitmapFont->ink_metrics = malloc(bitmapFont->num_chars * sizeof(xCharInfo));
if (!bitmapFont->ink_metrics) {
fprintf(stderr, "Error: Couldn't allocate ink_metrics (%d*%ld)\n",
bitmapFont->num_chars, (unsigned long)sizeof(xCharInfo));
return FALSE;
}
for (i = 0; i < bitmapFont->num_chars; i++)
FontCharInkMetrics(pFont, &bitmapFont->metrics[i], &bitmapFont->ink_metrics[i]);
pFont->info.inkMetrics = TRUE;
return TRUE;
}
int
bitmapComputeWeight(FontPtr pFont)
{
return 10;
}