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Merge pull request #71598 from bruvzg/gdscript_bidi_override

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Implement BiDi override mode for GDScript source.
This commit is contained in:
Rémi Verschelde 2023-01-19 19:33:18 +01:00
commit 65883cc73b
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GPG key ID: C3336907360768E1
21 changed files with 178 additions and 55 deletions
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44
modules/text_server_adv/text_server_adv.cpp
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@ -3654,6 +3654,7 @@ void TextServerAdvanced::full_copy(ShapedTextDataAdvanced *p_shaped) {
RID TextServerAdvanced::_create_shaped_text(TextServer::Direction p_direction, TextServer::Orientation p_orientation) {
_THREAD_SAFE_METHOD_
ERR_FAIL_COND_V_MSG(p_direction == DIRECTION_INHERITED, RID(), "Invalid text direction.");
ShapedTextDataAdvanced *sd = memnew(ShapedTextDataAdvanced);
sd->hb_buffer = hb_buffer_create();
@ -3679,6 +3680,7 @@ void TextServerAdvanced::_shaped_text_clear(const RID &p_shaped) {
void TextServerAdvanced::_shaped_text_set_direction(const RID &p_shaped, TextServer::Direction p_direction) {
ShapedTextDataAdvanced *sd = shaped_owner.get_or_null(p_shaped);
ERR_FAIL_COND_MSG(p_direction == DIRECTION_INHERITED, "Invalid text direction.");
ERR_FAIL_COND(!sd);
MutexLock lock(sd->mutex);
@ -3738,8 +3740,12 @@ void TextServerAdvanced::_shaped_text_set_bidi_override(const RID &p_shaped, con
}
sd->bidi_override.clear();
for (int i = 0; i < p_override.size(); i++) {
if (p_override[i].get_type() == Variant::VECTOR2I) {
sd->bidi_override.push_back(p_override[i]);
if (p_override[i].get_type() == Variant::VECTOR3I) {
const Vector3i &r = p_override[i];
sd->bidi_override.push_back(r);
} else if (p_override[i].get_type() == Variant::VECTOR2I) {
const Vector2i &r = p_override[i];
sd->bidi_override.push_back(Vector3i(r.x, r.y, DIRECTION_INHERITED));
}
}
invalidate(sd, false);
@ -5544,8 +5550,31 @@ bool TextServerAdvanced::_shaped_text_shape(const RID &p_shaped) {
sd->script_iter = memnew(ScriptIterator(sd->text, 0, sd->text.length()));
}
int base_para_direction = UBIDI_DEFAULT_LTR;
switch (sd->direction) {
case DIRECTION_LTR: {
sd->para_direction = DIRECTION_LTR;
base_para_direction = UBIDI_LTR;
} break;
case DIRECTION_RTL: {
sd->para_direction = DIRECTION_RTL;
base_para_direction = UBIDI_RTL;
} break;
case DIRECTION_INHERITED:
case DIRECTION_AUTO: {
UBiDiDirection direction = ubidi_getBaseDirection(data, sd->utf16.length());
if (direction != UBIDI_NEUTRAL) {
sd->para_direction = (direction == UBIDI_RTL) ? DIRECTION_RTL : DIRECTION_LTR;
base_para_direction = direction;
} else {
sd->para_direction = DIRECTION_LTR;
base_para_direction = UBIDI_DEFAULT_LTR;
}
} break;
}
if (sd->bidi_override.is_empty()) {
sd->bidi_override.push_back(Vector2i(sd->start, sd->end));
sd->bidi_override.push_back(Vector3i(sd->start, sd->end, DIRECTION_INHERITED));
}
for (int ov = 0; ov < sd->bidi_override.size(); ov++) {
@ -5561,23 +5590,22 @@ bool TextServerAdvanced::_shaped_text_shape(const RID &p_shaped) {
UBiDi *bidi_iter = ubidi_openSized(end, 0, &err);
ERR_FAIL_COND_V_MSG(U_FAILURE(err), false, u_errorName(err));
switch (sd->direction) {
switch (static_cast<TextServer::Direction>(sd->bidi_override[ov].z)) {
case DIRECTION_LTR: {
ubidi_setPara(bidi_iter, data + start, end - start, UBIDI_LTR, nullptr, &err);
sd->para_direction = DIRECTION_LTR;
} break;
case DIRECTION_RTL: {
ubidi_setPara(bidi_iter, data + start, end - start, UBIDI_RTL, nullptr, &err);
sd->para_direction = DIRECTION_RTL;
} break;
case DIRECTION_INHERITED: {
ubidi_setPara(bidi_iter, data + start, end - start, base_para_direction, nullptr, &err);
} break;
case DIRECTION_AUTO: {
UBiDiDirection direction = ubidi_getBaseDirection(data + start, end - start);
if (direction != UBIDI_NEUTRAL) {
ubidi_setPara(bidi_iter, data + start, end - start, direction, nullptr, &err);
sd->para_direction = (direction == UBIDI_RTL) ? DIRECTION_RTL : DIRECTION_LTR;
} else {
ubidi_setPara(bidi_iter, data + start, end - start, UBIDI_DEFAULT_LTR, nullptr, &err);
sd->para_direction = DIRECTION_LTR;
}
} break;
}