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[TextServer] Improve ligature cursor handling.

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Fix mid-grapheme hit test.
Fix OpenType features property handling, add default features override option.
Enable mid-grapheme cursor by default.
This commit is contained in:
bruvzg 2021-11-18 23:36:22 +02:00
parent 5a61822d7c
commit c89c515ccf
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GPG key ID: 7960FCF39844EC38
27 changed files with 403 additions and 286 deletions
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5
modules/text_server_adv/text_server_adv.h
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@ -187,6 +187,7 @@ class TextServerAdvanced : public TextServer {
Set<uint32_t> supported_scripts;
Dictionary supported_features;
Dictionary supported_varaitions;
Dictionary feature_overrides;
// Language/script support override.
Map<String, bool> language_support_overrides;
@ -272,6 +273,7 @@ class TextServerAdvanced : public TextServer {
bool _shape_substr(ShapedTextDataAdvanced *p_new_sd, const ShapedTextDataAdvanced *p_sd, int p_start, int p_length) const;
void _shape_run(ShapedTextDataAdvanced *p_sd, int32_t p_start, int32_t p_end, hb_script_t p_script, hb_direction_t p_direction, Vector<RID> p_fonts, int p_span, int p_fb_index);
Glyph _shape_single_glyph(ShapedTextDataAdvanced *p_sd, char32_t p_char, hb_script_t p_script, hb_direction_t p_direction, RID p_font, int p_font_size);
_FORCE_INLINE_ void _add_featuers(const Dictionary &p_source, Vector<hb_feature_t> &r_ftrs);
// HarfBuzz bitmap font interface.
@ -447,6 +449,9 @@ public:
virtual void font_remove_script_support_override(RID p_font_rid, const String &p_script) override;
virtual Vector<String> font_get_script_support_overrides(RID p_font_rid) override;
virtual void font_set_opentype_feature_overrides(RID p_font_rid, const Dictionary &p_overrides) override;
virtual Dictionary font_get_opentype_feature_overrides(RID p_font_rid) const override;
virtual Dictionary font_supported_feature_list(RID p_font_rid) const override;
virtual Dictionary font_supported_variation_list(RID p_font_rid) const override;