/* === S Y N F I G ========================================================= */
/*! \file widgets/widget_curves.h
** \brief Template Header
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., 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_STUDIO_WIDGET_CURVES_H
#define __SYNFIG_STUDIO_WIDGET_CURVES_H
/* === H E A D E R S ======================================================= */
#include <list>
#include <gtkmm/drawingarea.h>
#include <gtkmm/adjustment.h>
#include <synfigapp/value_desc.h>
#include <synfigapp/canvasinterface.h>
#include <gui/timemodel.h>
/* === 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 synfigapp {
namespace Action {
class PassiveGrouper;
}
}
namespace studio {
struct TimePlotData;
class Widget_Curves: public Gtk::DrawingArea
{
private:
struct Channel;
struct CurveStruct;
struct ChannelPoint {
std::list<CurveStruct>::iterator curve_it;
synfig::TimePoint time_point;
int channel_idx;
ChannelPoint();
ChannelPoint(std::list<CurveStruct>::iterator &curve_it, const synfig::TimePoint time_point, int channel_idx);
void invalidate();
bool is_valid() const;
bool is_draggable() const;
bool operator ==(const ChannelPoint &b) const;
bool operator !=(const ChannelPoint &b) const {return !operator==(b);}
synfig::Real get_value(synfig::Real time_tolerance) const;
};
etl::handle<synfigapp::CanvasInterface> canvas_interface;
Glib::RefPtr<Gtk::Adjustment> range_adjustment;
std::list<CurveStruct> curve_list;
std::list<sigc::connection> value_desc_changed;
TimePlotData * time_plot_data;
int waypoint_edge_length;
ChannelPoint hovered_point;
std::vector<ChannelPoint> selected_points;
bool find_channelpoint_at_position(int pos_x, int pos_y, ChannelPoint & cp);
bool find_channelpoints_in_rect(Gdk::Rectangle rect, std::vector<ChannelPoint> & list);
enum {POINTER_NONE, POINTER_DRAGGING, POINTER_SELECTING} pointer_state;
int pointer_tracking_start_x, pointer_tracking_start_y;
ChannelPoint active_point;
int active_point_initial_y;
void start_dragging(const ChannelPoint &pointed_item);
void drag(int pointer_x, int pointer_y);
void finish_dragging();
void cancel_dragging();
synfigapp::Action::PassiveGrouper *group;
static void set_value_base_for_channel_point(synfig::ValueBase &value_base, const ChannelPoint &channel_point, synfig::Real v);
public:
Widget_Curves();
~Widget_Curves();
const Glib::RefPtr<Gtk::Adjustment>& get_range_adjustment() const { return range_adjustment; }
const etl::handle<TimeModel>& get_time_model() const;
void set_time_model(const etl::handle<TimeModel> &x);
void set_value_descs(etl::handle<synfigapp::CanvasInterface> canvas_interface_, const std::list<synfigapp::ValueDesc> &value_descs);
void clear();
void refresh();
void zoom_in();
void zoom_out();
void zoom_100();
void set_zoom(double new_zoom_factor);
double get_zoom() const;
void scroll_up();
void scroll_down();
protected:
bool on_draw(const Cairo::RefPtr<Cairo::Context> &cr);
bool on_event(GdkEvent *event);
}; // END of class Widget_Curves
}; // END of namespace studio
/* === E N D =============================================================== */
#endif