Prevent crash and error spam related to Sprite2D with a region

editor/plugins/sprite_2d_editor_plugin.cpp

@@ -127,59 +127,57 @@ void Sprite2DEditor::_menu_option(int p_option) {
 			debug_uv_dialog->set_ok_button_text(TTR("Create MeshInstance2D"));
 			debug_uv_dialog->set_title(TTR("MeshInstance2D Preview"));
 
-			_update_mesh_data();
+			_popup_debug_uv_dialog();
-			debug_uv_dialog->popup_centered();
-			debug_uv->queue_redraw();
-
 		} break;
 		case MENU_OPTION_CONVERT_TO_POLYGON_2D: {
 			debug_uv_dialog->set_ok_button_text(TTR("Create Polygon2D"));
 			debug_uv_dialog->set_title(TTR("Polygon2D Preview"));
 
-			_update_mesh_data();
+			_popup_debug_uv_dialog();
-			debug_uv_dialog->popup_centered();
-			debug_uv->queue_redraw();
 		} break;
 		case MENU_OPTION_CREATE_COLLISION_POLY_2D: {
 			debug_uv_dialog->set_ok_button_text(TTR("Create CollisionPolygon2D"));
 			debug_uv_dialog->set_title(TTR("CollisionPolygon2D Preview"));
 
-			_update_mesh_data();
+			_popup_debug_uv_dialog();
-			debug_uv_dialog->popup_centered();
-			debug_uv->queue_redraw();
-
 		} break;
 		case MENU_OPTION_CREATE_LIGHT_OCCLUDER_2D: {
 			debug_uv_dialog->set_ok_button_text(TTR("Create LightOccluder2D"));
 			debug_uv_dialog->set_title(TTR("LightOccluder2D Preview"));
 
-			_update_mesh_data();
+			_popup_debug_uv_dialog();
-			debug_uv_dialog->popup_centered();
-			debug_uv->queue_redraw();
-
 		} break;
 	}
 }
 
-void Sprite2DEditor::_update_mesh_data() {
+void Sprite2DEditor::_popup_debug_uv_dialog() {
+	String error_message;
 	if (node->get_owner() != get_tree()->get_edited_scene_root()) {
-		err_dialog->set_text(TTR("Can't convert a Sprite2D from a foreign scene."));
+		error_message = TTR("Can't convert a sprite from a foreign scene.");
-		err_dialog->popup_centered();
 	}
-
 	Ref<Texture2D> texture = node->get_texture();
 	if (texture.is_null()) {
-		err_dialog->set_text(TTR("Sprite2D is empty!"));
+		error_message = TTR("Can't convert an empty sprite to mesh.");
-		err_dialog->popup_centered();
-		return;
 	}
-
 	if (node->get_hframes() > 1 || node->get_vframes() > 1) {
-		err_dialog->set_text(TTR("Can't convert a sprite using animation frames to mesh."));
+		error_message = TTR("Can't convert a sprite using animation frames to mesh.");
+	}
+
+	if (!error_message.is_empty()) {
+		err_dialog->set_text(error_message);
 		err_dialog->popup_centered();
 		return;
 	}
 
+	_update_mesh_data();
+	debug_uv_dialog->popup_centered();
+	debug_uv->queue_redraw();
+}
+
+void Sprite2DEditor::_update_mesh_data() {
+	ERR_FAIL_NULL(node);
+	Ref<Texture2D> texture = node->get_texture();
+	ERR_FAIL_COND(texture.is_null());
 	Ref<Image> image = texture->get_image();
 	ERR_FAIL_COND(image.is_null());
 
@@ -187,12 +185,9 @@ void Sprite2DEditor::_update_mesh_data() {
 		image->decompress();
 	}
 
+	// TODO: Add support for Sprite2D's region.
 	Rect2 rect;
-	if (node->is_region_enabled()) {
-		rect = node->get_region_rect();
-	} else {
 	rect.size = image->get_size();
-	}
 
 	Ref<BitMap> bm;
 	bm.instantiate();

editor/plugins/sprite_2d_editor_plugin.h

@@ -79,6 +79,7 @@ class Sprite2DEditor : public Control {
 	friend class Sprite2DEditorPlugin;
 
 	void _debug_uv_draw();
+	void _popup_debug_uv_dialog();
 	void _update_mesh_data();
 
 	void _create_node();

editor/plugins/texture_region_editor_plugin.cpp

@@ -54,7 +54,7 @@ Transform2D TextureRegionEditor::_get_offset_transform() const {
 }
 
 void TextureRegionEditor::_texture_preview_draw() {
-	Ref<Texture2D> object_texture = _get_edited_object_texture();
+	const Ref<Texture2D> object_texture = _get_edited_object_texture();
 	if (object_texture.is_null()) {
 		return;
 	}
@@ -68,7 +68,7 @@ void TextureRegionEditor::_texture_preview_draw() {
 }
 
 void TextureRegionEditor::_texture_overlay_draw() {
-	Ref<Texture2D> object_texture = _get_edited_object_texture();
+	const Ref<Texture2D> object_texture = _get_edited_object_texture();
 	if (object_texture.is_null()) {
 		return;
 	}
@@ -746,7 +746,7 @@ void TextureRegionEditor::_update_autoslice() {
 	autoslice_is_dirty = false;
 	autoslice_cache.clear();
 
-	Ref<Texture2D> object_texture = _get_edited_object_texture();
+	const Ref<Texture2D> object_texture = _get_edited_object_texture();
 	if (object_texture.is_null()) {
 		return;
 	}
@@ -860,14 +860,6 @@ void TextureRegionEditor::_node_removed(Node *p_node) {
 }
 
 void TextureRegionEditor::_clear_edited_object() {
-	node_sprite_2d = nullptr;
-	node_sprite_3d = nullptr;
-	node_ninepatch = nullptr;
-	res_stylebox = Ref<StyleBoxTexture>();
-	res_atlas_texture = Ref<AtlasTexture>();
-}
-
-void TextureRegionEditor::edit(Object *p_obj) {
 	if (node_sprite_2d) {
 		node_sprite_2d->disconnect("texture_changed", callable_mp(this, &TextureRegionEditor::_texture_changed));
 	}
@@ -884,6 +876,14 @@ void TextureRegionEditor::edit(Object *p_obj) {
 		res_atlas_texture->disconnect_changed(callable_mp(this, &TextureRegionEditor::_texture_changed));
 	}
 
+	node_sprite_2d = nullptr;
+	node_sprite_3d = nullptr;
+	node_ninepatch = nullptr;
+	res_stylebox = Ref<StyleBoxTexture>();
+	res_atlas_texture = Ref<AtlasTexture>();
+}
+
+void TextureRegionEditor::edit(Object *p_obj) {
 	_clear_edited_object();
 
 	if (p_obj) {
@@ -950,8 +950,9 @@ Rect2 TextureRegionEditor::_get_edited_object_region() const {
 		region = res_atlas_texture->get_region();
 	}
 
-	if (region == Rect2()) {
+	const Ref<Texture2D> object_texture = _get_edited_object_texture();
-		region = Rect2(Vector2(), _get_edited_object_texture()->get_size());
+	if (region == Rect2() && object_texture.is_valid()) {
+		region = Rect2(Vector2(), object_texture->get_size());
 	}
 
 	return region;
@@ -965,7 +966,7 @@ void TextureRegionEditor::_texture_changed() {
 }
 
 void TextureRegionEditor::_edit_region() {
-	Ref<Texture2D> object_texture = _get_edited_object_texture();
+	const Ref<Texture2D> object_texture = _get_edited_object_texture();
 	if (object_texture.is_null()) {
 		_zoom_reset();
 		hscroll->hide();