int textStringGeometrics(TEXT_FONT *font, const char *string, int linelen, int *w_set) {
int j, w, w_max, t, b;
if (!font)
return 0;
w_max = 0;
w = *w_set;
for (j = 0; *string; j++, w = 0) {
for (; *string != 0 && *string != '\n';) {
t = textStringWordLength(font, string, &b);
if (t + w >= linelen) {
if (w > 0)
break;
else
b = textStringBytesOnLine(font, string, linelen, &t);
}
string += b;
w += t;
if (*string == ' ') {
if (textGetGlyphWidth(font, ' ') + w >= linelen) {
string++;
break;
}
w += textGetGlyphWidth(font, ' ');
string++;
}
}
if (w == 0 && *string != '\n') { // We can't fit a single glyph. Meh. //
*w_set = 0;
return 0;
}
if (w > w_max)
w_max = w;
if (*string == '\n')
string++;
}
if (w_set)
*w_set = w_max;
return j * textFontGetHS(font);
}
int textStringBytesOnLine(TEXT_FONT *font, const char *string, int linelen, int *w_m) {
int i, w;
unsigned int glyph;
if (!font)
return 0;
for (i = w = 0; string[i] != 0;) {
glyph = utf8GetChar(&string[i]);
if (textGetGlyphWidth(font, glyph) + w > linelen) {
*w_m = w;
return i;
}
w += textGetGlyphWidth(font, glyph);
i += utf8GetValidatedCharLength(&string[i]);
}
*w_m = w;
return i;
}
int textGetStringWidth(TEXT_FONT *font, const char *string) {
int i, w;
unsigned int glyph;
for (i = w = 0; string[i] != 0; ) {
glyph = utf8GetChar(&string[i]);
i += utf8GetValidatedCharLength(&string[i]);
w += textGetGlyphWidth(font, glyph);
}
return w;
}
int textStringWordLength(TEXT_FONT *font, const char *string, int *bytes) {
int i, w;
unsigned int glyph;
if (bytes)
*bytes = 0;
if (!font)
return 0;
for (i = w = 0; string[i] != 0 && string[i] != ' ' && string[i] != '\n';) {
glyph = utf8GetChar(&string[i]);
i += utf8GetValidatedCharLength(&string[i]);
w += textGetGlyphWidth(font, glyph);
}
if (bytes)
*bytes = i;
return w;
}
unsigned int EXPORT_THIS d_font_glyph_w(void *font, const char *s) {
unsigned int c;
c = utf8GetChar(s);
return textGetGlyphWidth(font, c);
}
