text: /*************************************************************************/
  /*  audio_stream_editor_plugin.h                                         */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2021 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 AUDIO_STREAM_EDITOR_PLUGIN_H
  #define AUDIO_STREAM_EDITOR_PLUGIN_H
  
  #include "editor/editor_node.h"
  #include "editor/editor_plugin.h"
  #include "scene/audio/audio_stream_player.h"
  #include "scene/gui/color_rect.h"
  #include "scene/resources/texture.h"
  
  class AudioStreamEditor : public ColorRect {
  
  	GDCLASS(AudioStreamEditor, ColorRect);
  
  	Ref<AudioStream> stream;
  	AudioStreamPlayer *_player;
  	ColorRect *_preview;
  	Control *_indicator;
  	Label *_current_label;
  	Label *_duration_label;
  
  	ToolButton *_play_button;
  	ToolButton *_stop_button;
  
  	float _current;
  	bool _dragging;
  
  protected:
  	void _notification(int p_what);
  	void _preview_changed(ObjectID p_which);
  	void _play();
  	void _stop();
  	void _on_finished();
  	void _draw_preview();
  	void _draw_indicator();
  	void _on_input_indicator(Ref<InputEvent> p_event);
  	void _seek_to(real_t p_x);
  	void _changed_callback(Object *p_changed, const char *p_prop);
  	static void _bind_methods();
  
  public:
  	void edit(Ref<AudioStream> p_stream);
  	AudioStreamEditor();
  };
  
  class AudioStreamEditorPlugin : public EditorPlugin {
  
  	GDCLASS(AudioStreamEditorPlugin, EditorPlugin);
  
  	AudioStreamEditor *audio_editor;
  	EditorNode *editor;
  
  public:
  	virtual String get_name() const { return "Audio"; }
  	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);
  
  	AudioStreamEditorPlugin(EditorNode *p_node);
  	~AudioStreamEditorPlugin();
  };
  
  #endif // AUDIO_STREAM_EDITOR_PLUGIN_H
  