text: /*************************************************************************/
  /*  editor_path.cpp                                                      */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
  /*                                                                       */
  /* Permission is hereby granted, free of charge, to any person obtaining */
  /* a copy of this software and associated documentation files (the       */
  /* "Software"), to deal in the Software without restriction, including   */
  /* without limitation the rights to use, copy, modify, merge, publish,   */
  /* distribute, sublicense, and/or sell copies of the Software, and to    */
  /* permit persons to whom the Software is furnished to do so, subject to */
  /* the following conditions:                                             */
  /*                                                                       */
  /* The above copyright notice and this permission notice shall be        */
  /* included in all copies or substantial portions of the Software.       */
  /*                                                                       */
  /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
  /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
  /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
  /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
  /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
  /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
  /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
  /*************************************************************************/
  
  #include "editor_path.h"
  
  #include "editor_node.h"
  #include "editor_scale.h"
  
  void EditorPath::_add_children_to_popup(Object *p_obj, int p_depth) {
  
  	if (p_depth > 8)
  		return;
  
  	List<PropertyInfo> pinfo;
  	p_obj->get_property_list(&pinfo);
  	for (List<PropertyInfo>::Element *E = pinfo.front(); E; E = E->next()) {
  
  		if (!(E->get().usage & PROPERTY_USAGE_EDITOR))
  			continue;
  		if (E->get().hint != PROPERTY_HINT_RESOURCE_TYPE)
  			continue;
  
  		Variant value = p_obj->get(E->get().name);
  		if (value.get_type() != Variant::OBJECT)
  			continue;
  		Object *obj = value;
  		if (!obj)
  			continue;
  
  		Ref<Texture> icon = EditorNode::get_singleton()->get_object_icon(obj);
  
  		int index = get_popup()->get_item_count();
  		get_popup()->add_icon_item(icon, E->get().name.capitalize(), objects.size());
  		get_popup()->set_item_h_offset(index, p_depth * 10 * EDSCALE);
  		objects.push_back(obj->get_instance_id());
  
  		_add_children_to_popup(obj, p_depth + 1);
  	}
  }
  
  void EditorPath::_about_to_show() {
  
  	Object *obj = ObjectDB::get_instance(history->get_path_object(history->get_path_size() - 1));
  	if (!obj)
  		return;
  
  	objects.clear();
  	get_popup()->clear();
  	get_popup()->set_size(Size2(get_size().width, 1));
  
  	_add_children_to_popup(obj);
  	if (get_popup()->get_item_count() == 0) {
  		get_popup()->add_item(TTR("No sub-resources found."));
  		get_popup()->set_item_disabled(0, true);
  	}
  }
  
  void EditorPath::update_path() {
  
  	for (int i = 0; i < history->get_path_size(); i++) {
  
  		Object *obj = ObjectDB::get_instance(history->get_path_object(i));
  		if (!obj)
  			continue;
  
  		Ref<Texture> icon = EditorNode::get_singleton()->get_object_icon(obj);
  		if (icon.is_valid())
  			set_icon(icon);
  
  		if (i == history->get_path_size() - 1) {
  			String name;
  			if (Object::cast_to<Resource>(obj)) {
  
  				Resource *r = Object::cast_to<Resource>(obj);
  				if (r->get_path().is_resource_file())
  					name = r->get_path().get_file();
  				else
  					name = r->get_name();
  
  				if (name == "")
  					name = r->get_class();
  			} else if (obj->is_class("ScriptEditorDebuggerInspectedObject"))
  				name = obj->call("get_title");
  			else if (Object::cast_to<Node>(obj))
  				name = Object::cast_to<Node>(obj)->get_name();
  			else if (Object::cast_to<Resource>(obj) && Object::cast_to<Resource>(obj)->get_name() != "")
  				name = Object::cast_to<Resource>(obj)->get_name();
  			else
  				name = obj->get_class();
  
  			set_text(" " + name); // An extra space so the text is not too close of the icon.
  			set_tooltip(obj->get_class());
  		}
  	}
  }
  
  void EditorPath::_id_pressed(unsigned p_idx) {
  	ERR_FAIL_INDEX(p_idx, objects.size());
  
  	Object *obj = ObjectDB::get_instance(objects[p_idx]);
  	if (!obj)
  		return;
  
  	EditorNode::get_singleton()->push_item(obj);
  }
  
  void EditorPath::_bind_methods() {
  
  	ClassDB::bind_method("_about_to_show", &EditorPath::_about_to_show);
  	ClassDB::bind_method("_id_pressed", &EditorPath::_id_pressed);
  }
  
  EditorPath::EditorPath(EditorHistory *p_history) {
  
  	history = p_history;
  	set_text_align(ALIGN_LEFT);
  	get_popup()->connect("about_to_show", this, "_about_to_show");
  	get_popup()->connect("id_pressed", this, "_id_pressed");
  }
  