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[RTL] Adds "lang" tag to allow overriding language specific text rendering without starting a new paragraph.

This commit is contained in:
bruvzg 2023-08-21 14:52:09 +03:00
parent 970be7afdc
commit 299808cc26
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GPG Key ID: 7960FCF39844EC38
3 changed files with 36 additions and 2 deletions
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7
doc/classes/RichTextLabel.xml
View File

@ -380,6 +380,13 @@
Adds a [code][font][/code] tag with an italics font to the tag stack. This is the same as adding an [code][i][/code] tag if not currently in a [code][b][/code] tag.
</description>
</method>
<method name="push_language">
<return type="void" />
<param index="0" name="language" type="String" />
<description>
Adds language code used for text shaping algorithm and Open-Type font features.
</description>
</method>
<method name="push_list">
<return type="void" />
<param index="0" name="level" type="int" />

22
scene/gui/rich_text_label.cpp
View File

@ -2564,7 +2564,10 @@ String RichTextLabel::_find_language(Item *p_item) {
Item *item = p_item;
while (item) {
if (item->type == ITEM_PARAGRAPH) {
if (item->type == ITEM_LANGUAGE) {
ItemLanguage *p = static_cast<ItemLanguage *>(item);
return p->language;
} else if (item->type == ITEM_PARAGRAPH) {
ItemParagraph *p = static_cast<ItemParagraph *>(item);
return p->language;
}
@ -3441,6 +3444,17 @@ void RichTextLabel::push_meta(const Variant &p_meta) {
_add_item(item, true);
}
void RichTextLabel::push_language(const String &p_language) {
_stop_thread();
MutexLock data_lock(data_mutex);
ERR_FAIL_COND(current->type == ITEM_TABLE);
ItemLanguage *item = memnew(ItemLanguage);
item->language = p_language;
_add_item(item, true);
}
void RichTextLabel::push_hint(const String &p_string) {
_stop_thread();
MutexLock data_lock(data_mutex);
@ -4222,6 +4236,11 @@ void RichTextLabel::append_text(const String &p_bbcode) {
push_indent(indent_level);
pos = brk_end + 1;
tag_stack.push_front(tag);
} else if (tag.begins_with("lang=")) {
String lang = tag.substr(5, tag.length()).unquote();
push_language(lang);
pos = brk_end + 1;
tag_stack.push_front("lang");
} else if (tag == "p") {
push_paragraph(HORIZONTAL_ALIGNMENT_LEFT);
pos = brk_end + 1;
@ -5607,6 +5626,7 @@ void RichTextLabel::_bind_methods() {
ClassDB::bind_method(D_METHOD("push_list", "level", "type", "capitalize", "bullet"), &RichTextLabel::push_list, DEFVAL(String::utf8("•")));
ClassDB::bind_method(D_METHOD("push_meta", "data"), &RichTextLabel::push_meta);
ClassDB::bind_method(D_METHOD("push_hint", "description"), &RichTextLabel::push_hint);
ClassDB::bind_method(D_METHOD("push_language", "language"), &RichTextLabel::push_language);
ClassDB::bind_method(D_METHOD("push_underline"), &RichTextLabel::push_underline);
ClassDB::bind_method(D_METHOD("push_strikethrough"), &RichTextLabel::push_strikethrough);
ClassDB::bind_method(D_METHOD("push_table", "columns", "inline_align", "align_to_row"), &RichTextLabel::push_table, DEFVAL(INLINE_ALIGNMENT_TOP), DEFVAL(-1));

9
scene/gui/rich_text_label.h
View File

@ -77,7 +77,8 @@ public:
ITEM_HINT,
ITEM_DROPCAP,
ITEM_CUSTOMFX,
ITEM_CONTEXT
ITEM_CONTEXT,
ITEM_LANGUAGE,
};
enum MenuItems {
@ -237,6 +238,11 @@ private:
ItemHint() { type = ITEM_HINT; }
};
struct ItemLanguage : public Item {
String language;
ItemLanguage() { type = ITEM_LANGUAGE; }
};
struct ItemParagraph : public Item {
HorizontalAlignment alignment = HORIZONTAL_ALIGNMENT_LEFT;
String language;
@ -615,6 +621,7 @@ public:
void push_outline_color(const Color &p_color);
void push_underline();
void push_strikethrough();
void push_language(const String &p_language);
void push_paragraph(HorizontalAlignment p_alignment, Control::TextDirection p_direction = Control::TEXT_DIRECTION_INHERITED, const String &p_language = "", TextServer::StructuredTextParser p_st_parser = TextServer::STRUCTURED_TEXT_DEFAULT, BitField<TextServer::JustificationFlag> p_jst_flags = TextServer::JUSTIFICATION_WORD_BOUND | TextServer::JUSTIFICATION_KASHIDA | TextServer::JUSTIFICATION_SKIP_LAST_LINE | TextServer::JUSTIFICATION_DO_NOT_SKIP_SINGLE_LINE, const PackedFloat32Array &p_tab_stops = PackedFloat32Array());
void push_indent(int p_level);
void push_list(int p_level, ListType p_list, bool p_capitalize, const String &p_bullet = String::utf8("•"));