text: /*************************************************************************/
  /*  animation_tree_editor_plugin.h                                       */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2018 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.                */
  /*************************************************************************/
  
  #ifndef ANIMATION_TREE_PLAYER_EDITOR_PLUGIN_H
  #define ANIMATION_TREE_PLAYER_EDITOR_PLUGIN_H
  
  #include "editor/editor_node.h"
  #include "editor/editor_plugin.h"
  #include "editor/property_editor.h"
  #include "scene/animation/animation_tree_player.h"
  #include "scene/gui/button.h"
  #include "scene/gui/popup.h"
  #include "scene/gui/tree.h"
  /**
  	@author Juan Linietsky <reduzio@gmail.com>
  */
  
  class AnimationTreePlayerEditor : public Control {
  
  	GDCLASS(AnimationTreePlayerEditor, Control);
  
  	static const char *_node_type_names[];
  
  	enum ClickType {
  		CLICK_NONE,
  		CLICK_NAME,
  		CLICK_NODE,
  		CLICK_INPUT_SLOT,
  		CLICK_OUTPUT_SLOT,
  		CLICK_PARAMETER
  	};
  
  	enum {
  
  		MENU_GRAPH_CLEAR = 100,
  		MENU_IMPORT_ANIMATIONS = 101,
  		NODE_DISCONNECT,
  		NODE_RENAME,
  		NODE_ERASE,
  		NODE_ADD_INPUT,
  		NODE_DELETE_INPUT,
  		NODE_SET_AUTOADVANCE,
  		NODE_CLEAR_AUTOADVANCE
  	};
  
  	bool renaming_edit;
  	StringName edited_node;
  	bool updating_edit;
  	Popup *edit_dialog;
  	HSlider *edit_scroll[2];
  	LineEdit *edit_line[4];
  	OptionButton *edit_option;
  	Label *edit_label[4];
  	Button *edit_button;
  	Button *filter_button;
  	CheckButton *edit_check;
  	EditorFileDialog *file_dialog;
  	int file_op;
  
  	void _popup_edit_dialog();
  
  	void _setup_edit_dialog(const StringName &p_node);
  	PopupMenu *master_anim_popup;
  	PopupMenu *node_popup;
  	PopupMenu *add_popup;
  	HScrollBar *h_scroll;
  	VScrollBar *v_scroll;
  	MenuButton *add_menu;
  
  	CustomPropertyEditor *property_editor;
  
  	AnimationTreePlayer *anim_tree;
  	List<StringName> order;
  	Set<StringName> active_nodes;
  
  	int last_x, last_y;
  
  	Point2 offset;
  	ClickType click_type;
  	Point2 click_pos;
  	StringName click_node;
  	int click_slot;
  	Point2 click_motion;
  	ClickType rclick_type;
  	StringName rclick_node;
  	int rclick_slot;
  
  	Button *play_button;
  
  	Size2 _get_maximum_size();
  	Size2 get_node_size(const StringName &p_node) const;
  	void _draw_node(const StringName &p_node);
  
  	AcceptDialog *filter_dialog;
  	Tree *filter;
  
  	void _draw_cos_line(const Vector2 &p_from, const Vector2 &p_to, const Color &p_color);
  	void _update_scrollbars();
  	void _scroll_moved(float);
  	void _play_toggled();
  	/*
  	void _node_param_changed();
  	void _node_add_callback();
  	void _node_add(VisualServer::AnimationTreeNodeType p_type);
  	void _node_edit_property(const StringName& p_node);
  */
  
  	void _master_anim_menu_item(int p_item);
  	void _node_menu_item(int p_item);
  	void _add_menu_item(int p_item);
  
  	void _filter_edited();
  	void _find_paths_for_filter(const StringName &p_node, Set<String> &paths);
  	void _edit_filters();
  
  	void _edit_oneshot_start();
  	void _edit_dialog_animation_changed();
  	void _edit_dialog_edit_animation();
  	void _edit_dialog_changeds(String);
  	void _edit_dialog_changede(String);
  	void _edit_dialog_changedf(float);
  	void _edit_dialog_changed();
  	void _dialog_changed() const;
  	ClickType _locate_click(const Point2 &p_click, StringName *p_node_id, int *p_slot_index) const;
  	Point2 _get_slot_pos(const StringName &p_node_id, bool p_input, int p_slot);
  
  	StringName _add_node(int p_item);
  	void _file_dialog_selected(String p_path);
  
  protected:
  	void _notification(int p_what);
  	void _gui_input(Ref<InputEvent> p_event);
  	static void _bind_methods();
  
  public:
  	virtual Size2 get_minimum_size() const;
  	void edit(AnimationTreePlayer *p_anim_tree);
  	AnimationTreePlayerEditor();
  };
  
  class AnimationTreePlayerEditorPlugin : public EditorPlugin {
  
  	GDCLASS(AnimationTreePlayerEditorPlugin, EditorPlugin);
  
  	AnimationTreePlayerEditor *anim_tree_editor;
  	EditorNode *editor;
  	Button *button;
  
  public:
  	virtual String get_name() const { return "AnimTree"; }
  	bool has_main_screen() const { return false; }
  	virtual void edit(Object *p_object);
  	virtual bool handles(Object *p_object) const;
  	virtual void make_visible(bool p_visible);
  
  	AnimationTreePlayerEditorPlugin(EditorNode *p_node);
  	~AnimationTreePlayerEditorPlugin();
  };
  
  #endif // ANIMATION_TREE_EDITOR_PLUGIN_H
  