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Improve fill aligned text hit testing.

This commit is contained in:
bruvzg 2020-12-21 11:57:35 +02:00
parent 784f869f0f
commit cc4d6eb7f6
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GPG Key ID: 009E1BFE42239B95
1 changed files with 27 additions and 22 deletions
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49
servers/text_server.cpp
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@ -1038,31 +1038,36 @@ int TextServer::shaped_text_hit_test_position(RID p_shaped, float p_coords) cons
float off = 0.0f;
for (int i = 0; i < v_size; i++) {
for (int k = 0; k < glyphs[i].repeat; k++) {
if (glyphs[i].count > 0) {
float advance = 0.f;
for (int j = 0; j < glyphs[i].count; j++) {
advance += glyphs[i + j].advance;
}
// 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) {
return glyphs[i].end;
} else {
return glyphs[i].start;
}
}
// Place caret to the right of clicked grapheme.
if (p_coords >= off + advance / 2 && p_coords < off + advance) {
if ((glyphs[i].flags & GRAPHEME_IS_RTL) == GRAPHEME_IS_RTL) {
return glyphs[i].start;
} else {
return glyphs[i].end;
}
if (glyphs[i].count > 0) {
float advance = 0.f;
for (int j = 0; j < glyphs[i].count; j++) {
advance += glyphs[i + j].advance * glyphs[i + j].repeat;
}
if (((glyphs[i].flags & GRAPHEME_IS_VIRTUAL) == GRAPHEME_IS_VIRTUAL) && (p_coords >= off && p_coords < off + advance)) {
if ((glyphs[i].flags & GRAPHEME_IS_RTL) == GRAPHEME_IS_RTL) {
return glyphs[i].end;
} else {
return glyphs[i].start;
}
}
// 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) {
return glyphs[i].end;
} else {
return glyphs[i].start;
}
}
// Place caret to the right of clicked grapheme.
if (p_coords >= off + advance / 2 && p_coords < off + advance) {
if ((glyphs[i].flags & GRAPHEME_IS_RTL) == GRAPHEME_IS_RTL) {
return glyphs[i].start;
} else {
return glyphs[i].end;
}
}
off += glyphs[i].advance;
}
off += glyphs[i].advance * glyphs[i].repeat;
}
return 0;
}