text: /*************************************************************************/
  /*  particles_2d_editor_plugin.h                                         */
  /*************************************************************************/
  /*                       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.                */
  /*************************************************************************/
  
  #ifndef PARTICLES_2D_EDITOR_PLUGIN_H
  #define PARTICLES_2D_EDITOR_PLUGIN_H
  
  #include "editor/editor_node.h"
  #include "editor/editor_plugin.h"
  #include "scene/2d/collision_polygon_2d.h"
  #include "scene/2d/particles_2d.h"
  #include "scene/gui/box_container.h"
  #include "scene/gui/file_dialog.h"
  
  class Particles2DEditorPlugin : public EditorPlugin {
  
  	GDCLASS(Particles2DEditorPlugin, EditorPlugin);
  
  	enum {
  
  		MENU_GENERATE_VISIBILITY_RECT,
  		MENU_LOAD_EMISSION_MASK,
  		MENU_CLEAR_EMISSION_MASK,
  		MENU_OPTION_CONVERT_TO_CPU_PARTICLES,
  		MENU_RESTART
  	};
  
  	enum EmissionMode {
  		EMISSION_MODE_SOLID,
  		EMISSION_MODE_BORDER,
  		EMISSION_MODE_BORDER_DIRECTED
  	};
  
  	Particles2D *particles;
  
  	EditorFileDialog *file;
  	EditorNode *editor;
  
  	HBoxContainer *toolbar;
  	MenuButton *menu;
  
  	SpinBox *epoints;
  
  	ConfirmationDialog *generate_visibility_rect;
  	SpinBox *generate_seconds;
  
  	ConfirmationDialog *emission_mask;
  	OptionButton *emission_mask_mode;
  	CheckBox *emission_colors;
  
  	String source_emission_file;
  
  	UndoRedo *undo_redo;
  	void _file_selected(const String &p_file);
  	void _menu_callback(int p_idx);
  	void _generate_visibility_rect();
  	void _generate_emission_mask();
  
  protected:
  	void _notification(int p_what);
  	static void _bind_methods();
  
  public:
  	virtual String get_name() const { return "Particles2D"; }
  	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);
  
  	Particles2DEditorPlugin(EditorNode *p_node);
  	~Particles2DEditorPlugin();
  };
  
  #endif // PARTICLES_2D_EDITOR_PLUGIN_H
  