[RTL] Expose missing default properties, ensure bbcode is reparserd when these are changed.

doc/classes/Label.xml

@@ -59,7 +59,7 @@
 			Controls the text's horizontal alignment. Supports left, center, right, and fill, or justify. Set it to one of the [enum HorizontalAlignment] constants.
 		</member>
 		<member name="justification_flags" type="int" setter="set_justification_flags" getter="get_justification_flags" enum="TextServer.JustificationFlag" is_bitfield="true" default="163">
-			Line fill alignment rules. For more info see [enum TextServer.JustificationFlag].
+			Line fill alignment rules. See [enum TextServer.JustificationFlag] for more information.
 		</member>
 		<member name="label_settings" type="LabelSettings" setter="set_label_settings" getter="get_label_settings">
 			A [LabelSettings] resource that can be shared between multiple [Label] nodes. Takes priority over theme properties.

doc/classes/Label3D.xml

@@ -73,7 +73,7 @@
 			Controls the text's horizontal alignment. Supports left, center, right, and fill, or justify. Set it to one of the [enum HorizontalAlignment] constants.
 		</member>
 		<member name="justification_flags" type="int" setter="set_justification_flags" getter="get_justification_flags" enum="TextServer.JustificationFlag" is_bitfield="true" default="163">
-			Line fill alignment rules. For more info see [enum TextServer.JustificationFlag].
+			Line fill alignment rules. See [enum TextServer.JustificationFlag] for more information.
 		</member>
 		<member name="language" type="String" setter="set_language" getter="get_language" default="&quot;&quot;">
 			Language code used for line-breaking and text shaping algorithms, if left empty current locale is used instead.

doc/classes/RichTextLabel.xml

@@ -631,6 +631,12 @@
 		<member name="hint_underlined" type="bool" setter="set_hint_underline" getter="is_hint_underlined" default="true">
 			If [code]true[/code], the label underlines hint tags such as [code skip-lint][hint=description]{text}[/hint][/code].
 		</member>
+		<member name="horizontal_alignment" type="int" setter="set_horizontal_alignment" getter="get_horizontal_alignment" enum="HorizontalAlignment" default="0">
+			Controls the text's horizontal alignment. Supports left, center, right, and fill, or justify. Set it to one of the [enum HorizontalAlignment] constants.
+		</member>
+		<member name="justification_flags" type="int" setter="set_justification_flags" getter="get_justification_flags" enum="TextServer.JustificationFlag" is_bitfield="true" default="163">
+			Line fill alignment rules. See [enum TextServer.JustificationFlag] for more information.
+		</member>
 		<member name="language" type="String" setter="set_language" getter="get_language" default="&quot;&quot;">
 			Language code used for line-breaking and text shaping algorithms, if left empty current locale is used instead.
 		</member>
@@ -662,6 +668,9 @@
 		<member name="tab_size" type="int" setter="set_tab_size" getter="get_tab_size" default="4">
 			The number of spaces associated with a single tab length. Does not affect [code]\t[/code] in text tags, only indent tags.
 		</member>
+		<member name="tab_stops" type="PackedFloat32Array" setter="set_tab_stops" getter="get_tab_stops" default="PackedFloat32Array()">
+			Aligns text to the given tab-stops.
+		</member>
 		<member name="text" type="String" setter="set_text" getter="get_text" default="&quot;&quot;">
 			The label's text in BBCode format. Is not representative of manual modifications to the internal tag stack. Erases changes made by other methods when edited.
 			[b]Note:[/b] If [member bbcode_enabled] is [code]true[/code], it is unadvised to use the [code]+=[/code] operator with [member text] (e.g. [code]text += "some string"[/code]) as it replaces the whole text and can cause slowdowns. It will also erase all BBCode that was added to stack using [code]push_*[/code] methods. Use [method append_text] for adding text instead, unless you absolutely need to close a tag that was opened in an earlier method call.

doc/classes/TextMesh.xml

@@ -31,7 +31,7 @@
 			Controls the text's horizontal alignment. Supports left, center, right, and fill, or justify. Set it to one of the [enum HorizontalAlignment] constants.
 		</member>
 		<member name="justification_flags" type="int" setter="set_justification_flags" getter="get_justification_flags" enum="TextServer.JustificationFlag" is_bitfield="true" default="163">
-			Line fill alignment rules. For more info see [enum TextServer.JustificationFlag].
+			Line fill alignment rules. See [enum TextServer.JustificationFlag] for more information.
 		</member>
 		<member name="language" type="String" setter="set_language" getter="get_language" default="&quot;&quot;">
 			Language code used for text shaping algorithms, if left empty current locale is used instead.

doc/classes/TextParagraph.xml

@@ -278,7 +278,7 @@
 			Ellipsis character used for text clipping.
 		</member>
 		<member name="justification_flags" type="int" setter="set_justification_flags" getter="get_justification_flags" enum="TextServer.JustificationFlag" is_bitfield="true" default="163">
-			Line fill alignment rules. For more info see [enum TextServer.JustificationFlag].
+			Line fill alignment rules. See [enum TextServer.JustificationFlag] for more information.
 		</member>
 		<member name="max_lines_visible" type="int" setter="set_max_lines_visible" getter="get_max_lines_visible" default="-1">
 			Limits the lines of text shown.

scene/gui/rich_text_label.cpp

@@ -1800,13 +1800,13 @@ void RichTextLabel::_notification(int p_what) {
 
 		case NOTIFICATION_RESIZED: {
 			_stop_thread();
-			main->first_resized_line.store(0); //invalidate ALL
+			main->first_resized_line.store(0); // Invalidate all lines.
 			queue_redraw();
 		} break;
 
 		case NOTIFICATION_THEME_CHANGED: {
 			_stop_thread();
-			main->first_invalid_font_line.store(0); //invalidate ALL
+			main->first_invalid_font_line.store(0); // Invalidate all lines.
 			queue_redraw();
 		} break;
 
@@ -1816,7 +1816,7 @@ void RichTextLabel::_notification(int p_what) {
 				set_text(text);
 			}
 
-			main->first_invalid_line.store(0); //invalidate ALL
+			main->first_invalid_line.store(0); // Invalidate all lines.
 			queue_redraw();
 		} break;
 
@@ -2528,7 +2528,7 @@ PackedFloat32Array RichTextLabel::_find_tab_stops(Item *p_item) {
 		item = item->parent;
 	}
 
-	return PackedFloat32Array();
+	return default_tab_stops;
 }
 
 HorizontalAlignment RichTextLabel::_find_alignment(Item *p_item) {
@@ -4444,19 +4444,19 @@ void RichTextLabel::append_text(const String &p_bbcode) {
 			add_text(String::chr(0x00AD));
 			pos = brk_end + 1;
 		} else if (tag == "center") {
-			push_paragraph(HORIZONTAL_ALIGNMENT_CENTER);
+			push_paragraph(HORIZONTAL_ALIGNMENT_CENTER, text_direction, language, st_parser, default_jst_flags, default_tab_stops);
 			pos = brk_end + 1;
 			tag_stack.push_front(tag);
 		} else if (tag == "fill") {
-			push_paragraph(HORIZONTAL_ALIGNMENT_FILL);
+			push_paragraph(HORIZONTAL_ALIGNMENT_FILL, text_direction, language, st_parser, default_jst_flags, default_tab_stops);
 			pos = brk_end + 1;
 			tag_stack.push_front(tag);
 		} else if (tag == "left") {
-			push_paragraph(HORIZONTAL_ALIGNMENT_LEFT);
+			push_paragraph(HORIZONTAL_ALIGNMENT_LEFT, text_direction, language, st_parser, default_jst_flags, default_tab_stops);
 			pos = brk_end + 1;
 			tag_stack.push_front(tag);
 		} else if (tag == "right") {
-			push_paragraph(HORIZONTAL_ALIGNMENT_RIGHT);
+			push_paragraph(HORIZONTAL_ALIGNMENT_RIGHT, text_direction, language, st_parser, default_jst_flags, default_tab_stops);
 			pos = brk_end + 1;
 			tag_stack.push_front(tag);
 		} else if (tag == "ul") {
@@ -4515,8 +4515,8 @@ void RichTextLabel::append_text(const String &p_bbcode) {
 
 			HorizontalAlignment alignment = HORIZONTAL_ALIGNMENT_LEFT;
 			Control::TextDirection dir = Control::TEXT_DIRECTION_INHERITED;
-			String lang;
+			String lang = language;
-			PackedFloat32Array tab_stops;
+			PackedFloat32Array tab_stops = default_tab_stops;
 			TextServer::StructuredTextParser st_parser_type = TextServer::STRUCTURED_TEXT_DEFAULT;
 			BitField<TextServer::JustificationFlag> jst_flags = default_jst_flags;
 			for (int i = 0; i < subtag.size(); i++) {
@@ -5734,19 +5734,89 @@ void RichTextLabel::set_text_direction(Control::TextDirection p_text_direction)
 
 	if (text_direction != p_text_direction) {
 		text_direction = p_text_direction;
-		main->first_invalid_line.store(0); //invalidate ALL
+		if (!text.is_empty()) {
+			_apply_translation();
+		} else {
+			main->first_invalid_line.store(0); // Invalidate all lines.
 			_validate_line_caches();
+		}
 		queue_redraw();
 	}
 }
 
+Control::TextDirection RichTextLabel::get_text_direction() const {
+	return text_direction;
+}
+
+void RichTextLabel::set_horizontal_alignment(HorizontalAlignment p_alignment) {
+	ERR_FAIL_INDEX((int)p_alignment, 4);
+	_stop_thread();
+
+	if (default_alignment != p_alignment) {
+		default_alignment = p_alignment;
+		if (!text.is_empty()) {
+			_apply_translation();
+		} else {
+			main->first_invalid_line.store(0); // Invalidate all lines.
+			_validate_line_caches();
+		}
+		queue_redraw();
+	}
+}
+
+HorizontalAlignment RichTextLabel::get_horizontal_alignment() const {
+	return default_alignment;
+}
+
+void RichTextLabel::set_justification_flags(BitField<TextServer::JustificationFlag> p_flags) {
+	_stop_thread();
+
+	if (default_jst_flags != p_flags) {
+		default_jst_flags = p_flags;
+		if (!text.is_empty()) {
+			_apply_translation();
+		} else {
+			main->first_invalid_line.store(0); // Invalidate all lines.
+			_validate_line_caches();
+		}
+		queue_redraw();
+	}
+}
+
+BitField<TextServer::JustificationFlag> RichTextLabel::get_justification_flags() const {
+	return default_jst_flags;
+}
+
+void RichTextLabel::set_tab_stops(const PackedFloat32Array &p_tab_stops) {
+	_stop_thread();
+
+	if (default_tab_stops != p_tab_stops) {
+		default_tab_stops = p_tab_stops;
+		if (!text.is_empty()) {
+			_apply_translation();
+		} else {
+			main->first_invalid_line.store(0); // Invalidate all lines.
+			_validate_line_caches();
+		}
+		queue_redraw();
+	}
+}
+
+PackedFloat32Array RichTextLabel::get_tab_stops() const {
+	return default_tab_stops;
+}
+
 void RichTextLabel::set_structured_text_bidi_override(TextServer::StructuredTextParser p_parser) {
 	if (st_parser != p_parser) {
 		_stop_thread();
 
 		st_parser = p_parser;
-		main->first_invalid_line.store(0); //invalidate ALL
+		if (!text.is_empty()) {
+			_apply_translation();
+		} else {
+			main->first_invalid_line.store(0); // Invalidate all lines.
 			_validate_line_caches();
+		}
 		queue_redraw();
 	}
 }
@@ -5760,7 +5830,7 @@ void RichTextLabel::set_structured_text_bidi_override_options(Array p_args) {
 		_stop_thread();
 
 		st_args = p_args;
-		main->first_invalid_line.store(0); //invalidate ALL
+		main->first_invalid_line.store(0); // Invalidate all lines.
 		_validate_line_caches();
 		queue_redraw();
 	}
@@ -5770,17 +5840,17 @@ Array RichTextLabel::get_structured_text_bidi_override_options() const {
 	return st_args;
 }
 
-Control::TextDirection RichTextLabel::get_text_direction() const {
-	return text_direction;
-}
-
 void RichTextLabel::set_language(const String &p_language) {
 	if (language != p_language) {
 		_stop_thread();
 
 		language = p_language;
-		main->first_invalid_line.store(0); //invalidate ALL
+		if (!text.is_empty()) {
+			_apply_translation();
+		} else {
+			main->first_invalid_line.store(0); // Invalidate all lines.
 			_validate_line_caches();
+		}
 		queue_redraw();
 	}
 }
@@ -5794,7 +5864,7 @@ void RichTextLabel::set_autowrap_mode(TextServer::AutowrapMode p_mode) {
 		_stop_thread();
 
 		autowrap_mode = p_mode;
-		main->first_invalid_line = 0; //invalidate ALL
+		main->first_invalid_line = 0; // Invalidate all lines.
 		_validate_line_caches();
 		queue_redraw();
 	}
@@ -5820,7 +5890,7 @@ void RichTextLabel::set_visible_ratio(float p_ratio) {
 		}
 
 		if (visible_chars_behavior == TextServer::VC_CHARS_BEFORE_SHAPING) {
-			main->first_invalid_line.store(0); // Invalidate ALL.
+			main->first_invalid_line.store(0); //  Invalidate all lines..
 			_validate_line_caches();
 		}
 		queue_redraw();
@@ -5948,6 +6018,13 @@ void RichTextLabel::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_language", "language"), &RichTextLabel::set_language);
 	ClassDB::bind_method(D_METHOD("get_language"), &RichTextLabel::get_language);
 
+	ClassDB::bind_method(D_METHOD("set_horizontal_alignment", "alignment"), &RichTextLabel::set_horizontal_alignment);
+	ClassDB::bind_method(D_METHOD("get_horizontal_alignment"), &RichTextLabel::get_horizontal_alignment);
+	ClassDB::bind_method(D_METHOD("set_justification_flags", "justification_flags"), &RichTextLabel::set_justification_flags);
+	ClassDB::bind_method(D_METHOD("get_justification_flags"), &RichTextLabel::get_justification_flags);
+	ClassDB::bind_method(D_METHOD("set_tab_stops", "tab_stops"), &RichTextLabel::set_tab_stops);
+	ClassDB::bind_method(D_METHOD("get_tab_stops"), &RichTextLabel::get_tab_stops);
+
 	ClassDB::bind_method(D_METHOD("set_autowrap_mode", "autowrap_mode"), &RichTextLabel::set_autowrap_mode);
 	ClassDB::bind_method(D_METHOD("get_autowrap_mode"), &RichTextLabel::get_autowrap_mode);
 
@@ -6068,6 +6145,10 @@ void RichTextLabel::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "context_menu_enabled"), "set_context_menu_enabled", "is_context_menu_enabled");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "shortcut_keys_enabled"), "set_shortcut_keys_enabled", "is_shortcut_keys_enabled");
 
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "horizontal_alignment", PROPERTY_HINT_ENUM, "Left,Center,Right,Fill"), "set_horizontal_alignment", "get_horizontal_alignment");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "justification_flags", PROPERTY_HINT_FLAGS, "Kashida Justification:1,Word Justification:2,Justify Only After Last Tab:8,Skip Last Line:32,Skip Last Line With Visible Characters:64,Do Not Skip Single Line:128"), "set_justification_flags", "get_justification_flags");
+	ADD_PROPERTY(PropertyInfo(Variant::PACKED_FLOAT32_ARRAY, "tab_stops"), "set_tab_stops", "get_tab_stops");
+
 	ADD_GROUP("Markup", "");
 	ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "custom_effects", PROPERTY_HINT_ARRAY_TYPE, MAKE_RESOURCE_TYPE_HINT("RichTextEffect"), (PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_SCRIPT_VARIABLE)), "set_effects", "get_effects");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "meta_underlined"), "set_meta_underline", "is_meta_underlined");
@@ -6170,7 +6251,7 @@ void RichTextLabel::set_visible_characters_behavior(TextServer::VisibleCharacter
 		_stop_thread();
 
 		visible_chars_behavior = p_behavior;
-		main->first_invalid_line.store(0); //invalidate ALL
+		main->first_invalid_line.store(0); // Invalidate all lines.
 		_validate_line_caches();
 		queue_redraw();
 	}
@@ -6190,7 +6271,7 @@ void RichTextLabel::set_visible_characters(int p_visible) {
 			}
 		}
 		if (visible_chars_behavior == TextServer::VC_CHARS_BEFORE_SHAPING) {
-			main->first_invalid_line.store(0); //invalidate ALL
+			main->first_invalid_line.store(0); // Invalidate all lines.
 			_validate_line_caches();
 		}
 		queue_redraw();

scene/gui/rich_text_label.h

@@ -482,6 +482,7 @@ private:
 
 	HorizontalAlignment default_alignment = HORIZONTAL_ALIGNMENT_LEFT;
 	BitField<TextServer::JustificationFlag> default_jst_flags = TextServer::JUSTIFICATION_WORD_BOUND | TextServer::JUSTIFICATION_KASHIDA | TextServer::JUSTIFICATION_SKIP_LAST_LINE | TextServer::JUSTIFICATION_DO_NOT_SKIP_SINGLE_LINE;
+	PackedFloat32Array default_tab_stops;
 
 	ItemMeta *meta_hovering = nullptr;
 	Variant current_meta;
@@ -808,6 +809,15 @@ public:
 	void set_text(const String &p_bbcode);
 	String get_text() const;
 
+	void set_horizontal_alignment(HorizontalAlignment p_alignment);
+	HorizontalAlignment get_horizontal_alignment() const;
+
+	void set_justification_flags(BitField<TextServer::JustificationFlag> p_flags);
+	BitField<TextServer::JustificationFlag> get_justification_flags() const;
+
+	void set_tab_stops(const PackedFloat32Array &p_tab_stops);
+	PackedFloat32Array get_tab_stops() const;
+
 	void set_text_direction(TextDirection p_text_direction);
 	TextDirection get_text_direction() const;