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[TextServer / Font] Add support for customizable baseline offset.

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This commit is contained in:
bruvzg
2024-01-28 12:34:56 +02:00
parent 17e7f85c06
commit 85df221610
19 changed files with 242 additions and 24 deletions
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35
modules/text_server_fb/text_server_fb.cpp
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@ -1403,6 +1403,37 @@ int64_t TextServerFallback::_font_get_spacing(const RID &p_font_rid, SpacingType
}
}
void TextServerFallback::_font_set_baseline_offset(const RID &p_font_rid, float p_baseline_offset) {
FontFallbackLinkedVariation *fdv = font_var_owner.get_or_null(p_font_rid);
if (fdv) {
if (fdv->baseline_offset != p_baseline_offset) {
fdv->baseline_offset = p_baseline_offset;
}
} else {
FontFallback *fd = font_owner.get_or_null(p_font_rid);
ERR_FAIL_NULL(fd);
MutexLock lock(fd->mutex);
if (fd->baseline_offset != p_baseline_offset) {
_font_clear_cache(fd);
fd->baseline_offset = p_baseline_offset;
}
}
}
float TextServerFallback::_font_get_baseline_offset(const RID &p_font_rid) const {
FontFallbackLinkedVariation *fdv = font_var_owner.get_or_null(p_font_rid);
if (fdv) {
return fdv->baseline_offset;
} else {
FontFallback *fd = font_owner.get_or_null(p_font_rid);
ERR_FAIL_NULL_V(fd, 0.0);
MutexLock lock(fd->mutex);
return fd->baseline_offset;
}
}
void TextServerFallback::_font_set_transform(const RID &p_font_rid, const Transform2D &p_transform) {
FontFallback *fd = _get_font_data(p_font_rid);
ERR_FAIL_NULL(fd);
@ -4105,12 +4136,12 @@ bool TextServerFallback::_shaped_text_shape(const RID &p_shaped) {
if (sd->orientation == ORIENTATION_HORIZONTAL) {
gl.advance = _font_get_glyph_advance(gl.font_rid, gl.font_size, gl.index).x;
gl.x_off = 0;
gl.y_off = 0;
gl.y_off = _font_get_baseline_offset(gl.font_rid) * (double)(_font_get_ascent(gl.font_rid, gl.font_size) + _font_get_descent(gl.font_rid, gl.font_size));
sd->ascent = MAX(sd->ascent, _font_get_ascent(gl.font_rid, gl.font_size) + _font_get_spacing(gl.font_rid, SPACING_TOP));
sd->descent = MAX(sd->descent, _font_get_descent(gl.font_rid, gl.font_size) + _font_get_spacing(gl.font_rid, SPACING_BOTTOM));
} else {
gl.advance = _font_get_glyph_advance(gl.font_rid, gl.font_size, gl.index).y;
gl.x_off = -Math::round(_font_get_glyph_advance(gl.font_rid, gl.font_size, gl.index).x * 0.5);
gl.x_off = -Math::round(_font_get_glyph_advance(gl.font_rid, gl.font_size, gl.index).x * 0.5) + _font_get_baseline_offset(gl.font_rid) * (double)(_font_get_ascent(gl.font_rid, gl.font_size) + _font_get_descent(gl.font_rid, gl.font_size));
gl.y_off = _font_get_ascent(gl.font_rid, gl.font_size);
sd->ascent = MAX(sd->ascent, Math::round(_font_get_glyph_advance(gl.font_rid, gl.font_size, gl.index).x * 0.5));
sd->descent = MAX(sd->descent, Math::round(_font_get_glyph_advance(gl.font_rid, gl.font_size, gl.index).x * 0.5));