Add `Control::localize_numeral_system` property to toggle automatic numeral system conversion.

doc/classes/Control.xml

@@ -1010,6 +1010,10 @@
 		<member name="layout_direction" type="int" setter="set_layout_direction" getter="get_layout_direction" enum="Control.LayoutDirection" default="0">
 			Controls layout direction and text writing direction. Right-to-left layouts are necessary for certain languages (e.g. Arabic and Hebrew).
 		</member>
+		<member name="localize_numeral_system" type="bool" setter="set_localize_numeral_system" getter="is_localizing_numeral_system" default="true">
+			If [code]true[/code], automatically converts code line numbers, list indices, [SpinBox] and [ProgressBar] values from the Western Arabic (0..9) to the numeral systems used in current locale.
+			[b]Note:[/b] Numbers within the text are not automatically converted, it can be done manually, using [method TextServer.format_number].
+		</member>
 		<member name="mouse_default_cursor_shape" type="int" setter="set_default_cursor_shape" getter="get_default_cursor_shape" enum="Control.CursorShape" default="0">
 			The default cursor shape for this control. Useful for Godot plugins and applications or games that use the system's mouse cursors.
 			[b]Note:[/b] On Linux, shapes may vary depending on the cursor theme of the system.

scene/gui/code_edit.cpp

@@ -1425,7 +1425,10 @@ bool CodeEdit::is_line_numbers_zero_padded() const {
 }
 
 void CodeEdit::_line_number_draw_callback(int p_line, int p_gutter, const Rect2 &p_region) {
-	String fc = TS->format_number(String::num(p_line + 1).lpad(line_number_digits, line_number_padding));
+	String fc = String::num(p_line + 1).lpad(line_number_digits, line_number_padding);
+	if (is_localizing_numeral_system()) {
+		fc = TS->format_number(fc);
+	}
 	Ref<TextLine> tl;
 	tl.instantiate();
 	tl->add_string(fc, font, font_size);

scene/gui/control.cpp

@@ -2773,6 +2773,20 @@ bool Control::is_layout_rtl() const {
 	return data.is_rtl;
 }
 
+void Control::set_localize_numeral_system(bool p_enable) {
+	if (p_enable == data.localize_numeral_system) {
+		return;
+	}
+
+	data.localize_numeral_system = p_enable;
+
+	notification(MainLoop::NOTIFICATION_TRANSLATION_CHANGED);
+}
+
+bool Control::is_localizing_numeral_system() const {
+	return data.localize_numeral_system;
+}
+
 void Control::set_auto_translate(bool p_enable) {
 	if (p_enable == data.auto_translate) {
 		return;
@@ -3154,6 +3168,9 @@ void Control::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_auto_translate", "enable"), &Control::set_auto_translate);
 	ClassDB::bind_method(D_METHOD("is_auto_translating"), &Control::is_auto_translating);
 
+	ClassDB::bind_method(D_METHOD("set_localize_numeral_system", "enable"), &Control::set_localize_numeral_system);
+	ClassDB::bind_method(D_METHOD("is_localizing_numeral_system"), &Control::is_localizing_numeral_system);
+
 	ADD_GROUP("Layout", "");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "clip_contents"), "set_clip_contents", "is_clipping_contents");
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "custom_minimum_size", PROPERTY_HINT_NONE, "suffix:px"), "set_custom_minimum_size", "get_custom_minimum_size");
@@ -3198,8 +3215,9 @@ void Control::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "size_flags_vertical", PROPERTY_HINT_FLAGS, "Fill:1,Expand:2,Shrink Center:4,Shrink End:8"), "set_v_size_flags", "get_v_size_flags");
 	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "size_flags_stretch_ratio", PROPERTY_HINT_RANGE, "0,20,0.01,or_greater"), "set_stretch_ratio", "get_stretch_ratio");
 
-	ADD_GROUP("Auto Translate", "");
+	ADD_GROUP("Localization", "");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "auto_translate"), "set_auto_translate", "is_auto_translating");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "localize_numeral_system"), "set_localize_numeral_system", "is_localizing_numeral_system");
 
 	ADD_GROUP("Tooltip", "tooltip_");
 	ADD_PROPERTY(PropertyInfo(Variant::STRING, "tooltip_text", PROPERTY_HINT_MULTILINE_TEXT), "set_tooltip_text", "get_tooltip_text");

scene/gui/control.h

@@ -249,6 +249,7 @@ private:
 		bool is_rtl = false;
 
 		bool auto_translate = true;
+		bool localize_numeral_system = true;
 
 		// Extra properties.
 
@@ -595,6 +596,9 @@ public:
 	LayoutDirection get_layout_direction() const;
 	virtual bool is_layout_rtl() const;
 
+	void set_localize_numeral_system(bool p_enable);
+	bool is_localizing_numeral_system() const;
+
 	void set_auto_translate(bool p_enable);
 	bool is_auto_translating() const;
 	_FORCE_INLINE_ String atr(const String p_string) const {

scene/gui/progress_bar.cpp

@@ -103,7 +103,12 @@ void ProgressBar::_notification(int p_what) {
 			}
 
 			if (show_percentage) {
-				String txt = TS->format_number(itos(int(get_as_ratio() * 100))) + TS->percent_sign();
+				String txt = itos(int(get_as_ratio() * 100));
+				if (is_localizing_numeral_system()) {
+					txt = TS->format_number(txt) + TS->percent_sign();
+				} else {
+					txt += String("%");
+				}
 				TextLine tl = TextLine(txt, theme_cache.font, theme_cache.font_size);
 				Vector2 text_pos = (Point2(get_size().width - tl.get_size().x, get_size().height - tl.get_size().y) / 2).round();
 

scene/gui/rich_text_label.cpp

@@ -752,7 +752,10 @@ int RichTextLabel::_draw_line(ItemFrame *p_frame, int p_line, const Vector2 &p_o
 			prefix = _prefix;
 			break;
 		} else if (list_items[i]->list_type == LIST_NUMBERS) {
-			segment = TS->format_number(itos(list_index[i]), _find_language(l.from));
+			segment = itos(list_index[i]);
+			if (is_localizing_numeral_system()) {
+				segment = TS->format_number(segment, _find_language(l.from));
+			}
 		} else if (list_items[i]->list_type == LIST_LETTERS) {
 			segment = _letters(list_index[i], list_items[i]->capitalize);
 		} else if (list_items[i]->list_type == LIST_ROMAN) {

scene/gui/spin_box.cpp

@@ -40,7 +40,10 @@ Size2 SpinBox::get_minimum_size() const {
 }
 
 void SpinBox::_value_changed(double p_value) {
-	String value = TS->format_number(String::num(get_value(), Math::range_step_decimals(get_step())));
+	String value = String::num(get_value(), Math::range_step_decimals(get_step()));
+	if (is_localizing_numeral_system()) {
+		value = TS->format_number(value);
+	}
 
 	if (!line_edit->has_focus()) {
 		if (!prefix.is_empty()) {