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Only enable extra ligatures with recent Pango versions

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Pango's opentype feature selection functions are only available
from version 1.38+, which is still quite new, so ensure it's just
ignored if using an older version.
This commit is contained in:
Nick White 2016-03-21 13:03:03 +00:00
parent 9100adcbde
commit 76ed9decb3
1 changed files with 2 additions and 0 deletions
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2
training/stringrenderer.cpp
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@ -206,12 +206,14 @@ void StringRenderer::SetLayoutProperties() {
spacing_attr->end_index = static_cast<guint>(-1);
pango_attr_list_change(attr_list, spacing_attr);
}
#if (PANGO_VERSION_MAJOR == 1 && PANGO_VERSION_MINOR >= 38)
if (add_ligatures_) {
set_features("liga, clig, dlig, hlig");
PangoAttribute* feature_attr =
pango_attr_font_features_new(features_);
pango_attr_list_change(attr_list, feature_attr);
}
#endif
pango_layout_set_attributes(layout_, attr_list);
pango_attr_list_unref(attr_list);
// Adjust line spacing