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| author | bruvzg <7645683+bruvzg@users.noreply.github.com> | 2021-11-18 23:36:22 +0200 |
|---|---|---|
| committer | bruvzg <7645683+bruvzg@users.noreply.github.com> | 2022-01-09 19:03:48 +0200 |
| commit | c89c515ccf941a62bf2ec501095fad57d72cb1f7 (patch) | |
| tree | 66c06be5dd3a43e7cdf32b089320a4fb4b47f183 /servers/text_server.cpp | |
| parent | 5a61822d7ccab39b00ddd5c9bcc01fb04112b976 (diff) | |
| download | redot-engine-c89c515ccf941a62bf2ec501095fad57d72cb1f7.tar.gz | |
[TextServer] Improve ligature cursor handling.
Fix mid-grapheme hit test.
Fix OpenType features property handling, add default features override option.
Enable mid-grapheme cursor by default.
Diffstat (limited to 'servers/text_server.cpp')
| -rw-r--r-- | servers/text_server.cpp | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/servers/text_server.cpp b/servers/text_server.cpp index d547bcc75e..143cda985d 100644 --- a/servers/text_server.cpp +++ b/servers/text_server.cpp @@ -327,6 +327,9 @@ void TextServer::_bind_methods() { ClassDB::bind_method(D_METHOD("font_remove_script_support_override", "font_rid", "script"), &TextServer::font_remove_script_support_override); ClassDB::bind_method(D_METHOD("font_get_script_support_overrides", "font_rid"), &TextServer::font_get_script_support_overrides); + ClassDB::bind_method(D_METHOD("font_set_opentype_feature_overrides", "font_rid", "overrides"), &TextServer::font_set_opentype_feature_overrides); + ClassDB::bind_method(D_METHOD("font_get_opentype_feature_overrides", "font_rid"), &TextServer::font_get_opentype_feature_overrides); + ClassDB::bind_method(D_METHOD("font_supported_feature_list", "font_rid"), &TextServer::font_supported_feature_list); ClassDB::bind_method(D_METHOD("font_supported_variation_list", "font_rid"), &TextServer::font_supported_variation_list); @@ -989,9 +992,9 @@ Vector<Vector2> TextServer::shaped_text_get_selection(RID p_shaped, int p_start, } real_t char_adv = advance / (real_t)(glyphs[i].end - glyphs[i].start); if ((glyphs[i].flags & GRAPHEME_IS_RTL) == GRAPHEME_IS_RTL) { - ranges.push_back(Vector2(off, off + char_adv * (start - glyphs[i].start))); + ranges.push_back(Vector2(off, off + char_adv * (glyphs[i].end - start))); } else { - ranges.push_back(Vector2(off + char_adv * (glyphs[i].end - start), off + advance)); + ranges.push_back(Vector2(off + char_adv * (start - glyphs[i].start), off + advance)); } } // Selection range is within grapheme. @@ -1099,6 +1102,31 @@ int TextServer::shaped_text_hit_test_position(RID p_shaped, float p_coords) cons return glyphs[i].start; } } + // Ligature, handle mid-grapheme hit. + if (p_coords >= off && p_coords < off + advance && glyphs[i].end > glyphs[i].start + 1) { + int cnt = glyphs[i].end - glyphs[i].start; + real_t char_adv = advance / (real_t)(cnt); + real_t sub_off = off; + for (int j = 0; j < cnt; j++) { + // Place caret to the left of clicked sub-grapheme. + if (p_coords >= sub_off && p_coords < sub_off + char_adv / 2) { + if ((glyphs[i].flags & GRAPHEME_IS_RTL) == GRAPHEME_IS_RTL) { + return glyphs[i].end - j; + } else { + return glyphs[i].start + j; + } + } + // Place caret to the right of clicked sub-grapheme. + if (p_coords >= sub_off + char_adv / 2 && p_coords < sub_off + char_adv) { + if ((glyphs[i].flags & GRAPHEME_IS_RTL) == GRAPHEME_IS_RTL) { + return glyphs[i].start + (cnt - 1) - j; + } else { + return glyphs[i].end - (cnt - 1) + j; + } + } + sub_off += char_adv; + } + } // Place caret to the left of clicked grapheme. if (p_coords >= off && p_coords < off + advance / 2) { if ((glyphs[i].flags & GRAPHEME_IS_RTL) == GRAPHEME_IS_RTL) { |