int
get_ot_math_kern(int f, int g, int sf, int sg, int cmd, int shift)
{
int rval = 0;
if (fontarea[f] == OTGR_FONT_FLAG) {
XeTeXFontInst* font = (XeTeXFontInst*)getFont((XeTeXLayoutEngine)fontlayoutengine[f]);
int kern = 0, skern = 0;
float corr_height_top = 0.0, corr_height_bot = 0.0;
shift = Fix2D(shift);
if (cmd == sup_cmd) { // superscript
corr_height_top = font->pointsToUnits(glyph_height(f, g));
corr_height_bot = -font->pointsToUnits(glyph_depth(sf, sg) + shift);
kern = getMathKernAt(f, g, topRight, corr_height_top);
skern = getMathKernAt(sf, sg, bottomLeft, corr_height_top);
rval = kern + skern;
kern = getMathKernAt(f, g, topRight, corr_height_bot);
skern = getMathKernAt(sf, sg, bottomLeft, corr_height_bot);
if ((kern + skern) < rval)
rval = kern + skern;
} else if (cmd == sub_cmd) { // subscript
corr_height_top = font->pointsToUnits(glyph_height(sf, sg) - shift);
corr_height_bot = -font->pointsToUnits(glyph_depth(f, g));
kern = getMathKernAt(f, g, bottomRight, corr_height_top);
skern = getMathKernAt(sf, sg, topLeft, corr_height_top);
rval = kern + skern;
kern = getMathKernAt(f, g, bottomRight, corr_height_bot);
skern = getMathKernAt(sf, sg, topLeft, corr_height_bot);
if ((kern + skern) < rval)
rval = kern + skern;
} else {
assert(0); // we should not reach here
}
rval = D2Fix(font->unitsToPoints(rval));
}
return rval;
}
static int
gtk_get_button_size (struct frame *f, Lisp_Object window,
struct toolbar_button *tb, int vert, int pos)
{
int shadow_thickness = 2;
int size;
if (tb->blank)
{
if (!NILP (tb->down_glyph))
size = XINT (tb->down_glyph);
else
size = DEFAULT_TOOLBAR_BLANK_SIZE;
}
else
{
struct window *w = XWINDOW (window);
Lisp_Object glyph = get_toolbar_button_glyph (w, tb);
/* Unless, of course, the user has done something stupid like
change the glyph out from under us. Use a blank placeholder
in that case. */
if (NILP (glyph))
return XINT (f->toolbar_size[pos]);
if (vert)
size = glyph_height (glyph, window);
else
size = glyph_width (glyph, window);
}
if (!size)
{
/* If the glyph doesn't have a size we'll insert a blank
placeholder instead. */
return XINT (f->toolbar_size[pos]);
}
size += shadow_thickness * 2;
return (size);
}
