/* === S Y N F I G ========================================================= */

/*!	\file widgets/widget_timeslider.h

**	\brief Time Slider Widget Header

**

**	$Id$

**

**	\legal

**	Copyright (c) 2004 Adrian Bentley

**	......... ... 2018 Ivan Mahonin

**

**	This package 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 package 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.

**	\endlegal

*/

/* ========================================================================= */

/* === S T A R T =========================================================== */

#ifndef __SYNFIG_WIDGET_TIMESLIDER_H

#define __SYNFIG_WIDGET_TIMESLIDER_H

/* === H E A D E R S ======================================================= */

#include <gtkmm drawingarea.h=""></gtkmm>

#include <synfig time.h=""></synfig>

#include <gui timemodel.h=""></gui>

/* === M A C R O S ========================================================= */

/* === T Y P E D E F S ===================================================== */

/* === C L A S S E S & S T R U C T S ======================================= */

namespace studio {

class TimePlotData;

//! Design for the timeslider...

//! Concept: Scalable ruler

//!     Ticks are done every so often (30 s, 10 frames, 5 frames, etc.)

//!     Print out frame numbers next to the big ticks

//!     Show blue pills in separate area (above or below)

class Widget_Timeslider: public Gtk::DrawingArea

{

protected: // implementation that other interfaces can see

	Glib::RefPtr<pango::layout> layout; // implementation awesomeness for text drawing</pango::layout>

	Cairo::RefPtr<cairo::surfacepattern> play_bounds_pattern;</cairo::surfacepattern>

	// last mouse position for dragging

	double lastx;

	// distance between two small marks, also uses for left/right scroll

	synfig::Time step;

	sigc::connection time_change;

	sigc::connection time_bounds_change;

	TimePlotData * time_plot_data;

	virtual bool on_button_press_event(GdkEventButton *event); //for clicking

	virtual bool on_button_release_event(GdkEventButton *event); //for clicking

	virtual bool on_motion_notify_event(GdkEventMotion* event); //for dragging

	virtual bool on_scroll_event(GdkEventScroll* event); //for zooming

	virtual bool on_draw(const Cairo::RefPtr<cairo::context> &cr);</cairo::context>

	virtual void draw_background(const Cairo::RefPtr<cairo::context> &cr);</cairo::context>

	virtual bool on_configure_event(GdkEventConfigure * configure);

public:

	Widget_Timeslider();

	~Widget_Timeslider();

	const etl::handle<timemodel>& get_time_model() const;</timemodel>

	void set_time_model(const etl::handle<timemodel> &x);</timemodel>

};

}; // END of namespace studio

/* === E N D =============================================================== */

#endif