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/*
 * Copyright (C) 2003 Paul Davis <paul@linuxaudiosystems.com>
 * Copyright (C) 2017 Robin Gareus <robin@gareus.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef _WIDGETS_TEAROFF_H_
#define _WIDGETS_TEAROFF_H_

#include <gtkmm/arrow.h>
#include <gtkmm/box.h>
#include <gtkmm/eventbox.h>
#include <gtkmm/window.h>

#include "widgets/visibility.h"

class XMLNode;

namespace ArdourWidgets {

class LIBWIDGETS_API TearOff : public Gtk::HBox
{
public:
	TearOff (Gtk::Widget& contents, bool allow_resize = false);
	virtual ~TearOff ();

	void set_visible (bool yn, bool force = false);
	void set_can_be_torn_off (bool);
	bool can_be_torn_off () const { return _can_be_torn_off; }
	bool visible () const { return _visible; }

	sigc::signal<void> Detach;
	sigc::signal<void> Attach;
	sigc::signal<void> Visible;
	sigc::signal<void> Hidden;

	Gtk::Window& tearoff_window() { return own_window; }
	bool torn_off() const;
	void tear_it_off ();
	void put_it_back ();
	void hide_visible ();

	void set_state (const XMLNode&);
	void add_state (XMLNode&) const;

private:
	Gtk::Widget&   contents;
	Gtk::Window    own_window;
	Gtk::Arrow     tearoff_arrow;
	Gtk::Arrow     close_arrow;
	Gtk::HBox      window_box;
	Gtk::EventBox  tearoff_event_box;
	Gtk::EventBox  close_event_box;
	double         drag_x;
	double         drag_y;
	bool           dragging;
	bool          _visible;
	bool          _torn;
	bool          _can_be_torn_off;
	int            own_window_width;
	int            own_window_height;
	int            own_window_xpos;
	int            own_window_ypos;

	gint tearoff_click (GdkEventButton*);
	gint close_click (GdkEventButton*);

	gint window_motion (GdkEventMotion*);
	gint window_button_press (GdkEventButton*);
	gint window_button_release (GdkEventButton*);
	gint window_delete_event (GdkEventAny*);

	void own_window_realized ();
	bool own_window_configured (GdkEventConfigure*);
};

} /* namespace */

#endif