Refresh TextLine buffer when moving tab

2 files changed, 22 insertions, 48 deletions

diff --git a/scene/gui/tab_container.cpp b/scene/gui/tab_container.cpp
index 01c1a15b79..809b4ffd64 100644
--- a/scene/gui/tab_container.cpp
+++ b/scene/gui/tab_container.cpp
@@ -568,16 +568,12 @@ void TabContainer::_draw_tab(Ref<StyleBox> &p_tab_style, Color &p_font_color, in
 	text_buf[p_index]->draw(canvas, text_pos, p_font_color);
 }
 
-void TabContainer::_on_theme_changed() {
-	if (!_theme_changing) {
-		return;
-	}
-
+void TabContainer::_refresh_texts() {
 	text_buf.clear();
+	Vector<Control *> tabs = _get_tabs();
 	bool rtl = is_layout_rtl();
 	Ref<Font> font = get_theme_font("font");
 	int font_size = get_theme_font_size("font_size");
-	Vector<Control *> tabs = _get_tabs();
 	for (int i = 0; i < tabs.size(); i++) {
 		Control *control = Object::cast_to<Control>(tabs[i]);
 		String text = control->has_meta("_tab_name") ? String(tr(String(control->get_meta("_tab_name")))) : String(tr(control->get_name()));
@@ -587,6 +583,14 @@ void TabContainer::_on_theme_changed() {
 		name->add_string(text, font, font_size, Dictionary(), TranslationServer::get_singleton()->get_tool_locale());
 		text_buf.push_back(name);
 	}
+}
+
+void TabContainer::_on_theme_changed() {
+	if (!_theme_changing) {
+		return;
+	}
+
+	_refresh_texts();
 
 	minimum_size_changed();
 	if (get_tab_count() > 0) {
@@ -679,21 +683,7 @@ Vector<Control *> TabContainer::_get_tabs() const {
 }
 
 void TabContainer::_child_renamed_callback() {
-	text_buf.clear();
-	Vector<Control *> tabs = _get_tabs();
-	bool rtl = is_layout_rtl();
-	Ref<Font> font = get_theme_font("font");
-	int font_size = get_theme_font_size("font_size");
-	for (int i = 0; i < tabs.size(); i++) {
-		Control *control = Object::cast_to<Control>(tabs[i]);
-		String text = control->has_meta("_tab_name") ? String(tr(String(control->get_meta("_tab_name")))) : String(tr(control->get_name()));
-		Ref<TextLine> name;
-		name.instance();
-		name->set_direction(rtl ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR);
-		name->add_string(text, font, font_size, Dictionary(), TranslationServer::get_singleton()->get_tool_locale());
-		text_buf.push_back(name);
-	}
-
+	_refresh_texts();
 	update();
 }
 
@@ -708,20 +698,8 @@ void TabContainer::add_child_notify(Node *p_child) {
 		return;
 	}
 
-	text_buf.clear();
 	Vector<Control *> tabs = _get_tabs();
-	bool rtl = is_layout_rtl();
-	Ref<Font> font = get_theme_font("font");
-	int font_size = get_theme_font_size("font_size");
-	for (int i = 0; i < tabs.size(); i++) {
-		Control *control = Object::cast_to<Control>(tabs[i]);
-		String text = control->has_meta("_tab_name") ? String(tr(String(control->get_meta("_tab_name")))) : String(tr(control->get_name()));
-		Ref<TextLine> name;
-		name.instance();
-		name->set_direction(rtl ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR);
-		name->add_string(text, font, font_size, Dictionary(), TranslationServer::get_singleton()->get_tool_locale());
-		text_buf.push_back(name);
-	}
+	_refresh_texts();
 
 	bool first = false;
 
@@ -743,7 +721,6 @@ void TabContainer::add_child_notify(Node *p_child) {
 	c->set_margin(Margin(MARGIN_LEFT), c->get_margin(Margin(MARGIN_LEFT)) + sb->get_margin(Margin(MARGIN_LEFT)));
 	c->set_margin(Margin(MARGIN_RIGHT), c->get_margin(Margin(MARGIN_RIGHT)) - sb->get_margin(Margin(MARGIN_RIGHT)));
 	c->set_margin(Margin(MARGIN_BOTTOM), c->get_margin(Margin(MARGIN_BOTTOM)) - sb->get_margin(Margin(MARGIN_BOTTOM)));
-
 	update();
 	p_child->connect("renamed", callable_mp(this, &TabContainer::_child_renamed_callback));
 	if (first && is_inside_tree()) {
@@ -751,6 +728,13 @@ void TabContainer::add_child_notify(Node *p_child) {
 	}
 }
 
+void TabContainer::move_child_notify(Node *p_child) {
+	Container::move_child_notify(p_child);
+	call_deferred("_update_current_tab");
+	_refresh_texts();
+	update();
+}
+
 int TabContainer::get_tab_count() const {
 	return _get_tabs().size();
 }
@@ -813,20 +797,8 @@ void TabContainer::remove_child_notify(Node *p_child) {
 }
 
 void TabContainer::_update_current_tab() {
-	text_buf.clear();
 	Vector<Control *> tabs = _get_tabs();
-	bool rtl = is_layout_rtl();
-	Ref<Font> font = get_theme_font("font");
-	int font_size = get_theme_font_size("font_size");
-	for (int i = 0; i < tabs.size(); i++) {
-		Control *control = Object::cast_to<Control>(tabs[i]);
-		String text = control->has_meta("_tab_name") ? String(tr(String(control->get_meta("_tab_name")))) : String(tr(control->get_name()));
-		Ref<TextLine> name;
-		name.instance();
-		name->set_direction(rtl ? TextServer::DIRECTION_RTL : TextServer::DIRECTION_LTR);
-		name->add_string(text, font, font_size, Dictionary(), TranslationServer::get_singleton()->get_tool_locale());
-		text_buf.push_back(name);
-	}
+	_refresh_texts();
 
 	int tc = tabs.size();
 	if (current >= tc) {
diff --git a/scene/gui/tab_container.h b/scene/gui/tab_container.h
index 91153e5fc3..9ff56afe6e 100644
--- a/scene/gui/tab_container.h
+++ b/scene/gui/tab_container.h
@@ -73,12 +73,14 @@ private:
 	void _on_mouse_exited();
 	void _update_current_tab();
 	void _draw_tab(Ref<StyleBox> &p_tab_style, Color &p_font_color, int p_index, float p_x);
+	void _refresh_texts();
 
 protected:
 	void _child_renamed_callback();
 	void _gui_input(const Ref<InputEvent> &p_event);
 	void _notification(int p_what);
 	virtual void add_child_notify(Node *p_child) override;
+	virtual void move_child_notify(Node *p_child) override;
 	virtual void remove_child_notify(Node *p_child) override;
 
 	Variant get_drag_data(const Point2 &p_point) override;