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/*
Copyright (C) 2002 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __ardour_automation_line_h__
#define __ardour_automation_line_h__
#include <vector>
#include <list>
#include <string>
#include <sys/types.h>
#include <libgnomecanvasmm/line.h>
#include <sigc++/signal.h>
#include "canvas.h"
#include "simplerect.h"
#include "evoral/TimeConverter.hpp"
#include "pbd/undo.h"
#include "pbd/statefuldestructible.h"
#include "ardour/automation_list.h"
#include "ardour/types.h"
class AutomationLine;
class ControlPoint;
class PointSelection;
class TimeAxisView;
class AutomationTimeAxisView;
class Selectable;
class Selection;
namespace Gnome {
namespace Canvas {
class SimpleRect;
}
}
class AutomationLine : public sigc::trackable, public PBD::StatefulThingWithGoingAway
{
public:
AutomationLine (const std::string& name, TimeAxisView&, ArdourCanvas::Group&,
boost::shared_ptr<ARDOUR::AutomationList>,
const Evoral::TimeConverter<double, ARDOUR::sframes_t>* converter = 0);
virtual ~AutomationLine ();
void queue_reset ();
void reset ();
void clear();
void set_selected_points (PointSelection&);
void get_selectables (nframes_t& start, nframes_t& end,
double botfrac, double topfrac,
std::list<Selectable*>& results);
void get_inverted_selectables (Selection&, std::list<Selectable*>& results);
virtual void remove_point (ControlPoint&);
bool control_points_adjacent (double xval, uint32_t& before, uint32_t& after);
/* dragging API */
virtual void start_drag (ControlPoint*, nframes_t x, float fraction);
virtual void point_drag(ControlPoint&, nframes_t x, float, bool with_push);
virtual void end_drag (ControlPoint*);
virtual void line_drag(uint32_t i1, uint32_t i2, float, bool with_push);
ControlPoint* nth (uint32_t);
uint32_t npoints() const { return control_points.size(); }
std::string name() const { return _name; }
bool visible() const { return _visible; }
guint32 height() const { return _height; }
void set_line_color (uint32_t);
uint32_t get_line_color() const { return _line_color; }
void set_interpolation(ARDOUR::AutomationList::InterpolationStyle style);
void show ();
void hide ();
void set_height (guint32);
void set_uses_gain_mapping (bool yn);
bool get_uses_gain_mapping () const { return _uses_gain_mapping; }
TimeAxisView& trackview;
ArdourCanvas::Group& canvas_group() const { return *group; }
ArdourCanvas::Item& parent_group() const { return _parent_group; }
ArdourCanvas::Item& grab_item() const { return *line; }
void show_selection();
void hide_selection ();
std::string get_verbose_cursor_string (double) const;
std::string fraction_to_string (double) const;
double string_to_fraction (std::string const &) const;
void view_to_model_coord (double& x, double& y) const;
void model_to_view_coord (double& x, double& y) const;
void set_list(boost::shared_ptr<ARDOUR::AutomationList> list);
boost::shared_ptr<ARDOUR::AutomationList> the_list() const { return alist; }
void show_all_control_points ();
void hide_all_but_selected_control_points ();
void track_entered();
void track_exited();
bool is_last_point (ControlPoint &);
bool is_first_point (ControlPoint &);
XMLNode& get_state (void);
int set_state (const XMLNode&, int version);
void set_colors();
void modify_point_y (ControlPoint&, double);
protected:
std::string _name;
guint32 _height;
uint32_t _line_color;
boost::shared_ptr<ARDOUR::AutomationList> alist;
bool _visible : 1;
bool _uses_gain_mapping : 1;
bool terminal_points_can_slide : 1;
bool update_pending : 1;
bool no_draw : 1;
bool points_visible : 1;
bool did_push;
ArdourCanvas::Group& _parent_group;
ArdourCanvas::Group* group;
ArdourCanvas::Line* line; /* line */
ArdourCanvas::Points line_points; /* coordinates for canvas line */
std::vector<ControlPoint*> control_points; /* visible control points */
struct ALPoint {
double x;
double y;
ALPoint (double xx, double yy) : x(xx), y(yy) {}
};
typedef std::vector<ALPoint> ALPoints;
static void invalidate_point (ALPoints&, uint32_t index);
static bool invalid_point (ALPoints&, uint32_t index);
void determine_visible_control_points (ALPoints&);
void sync_model_with_view_point (ControlPoint&, bool did_push, int64_t distance);
void sync_model_with_view_line (uint32_t, uint32_t);
virtual void change_model (ARDOUR::AutomationList::iterator, double x, double y);
void reset_callback (const Evoral::ControlList&);
void list_changed ();
virtual bool event_handler (GdkEvent*);
virtual void add_model_point (ALPoints& tmp_points, double frame, double yfract);
private:
uint32_t drags;
double first_drag_fraction;
double last_drag_fraction;
uint32_t line_drag_cp1;
uint32_t line_drag_cp2;
int64_t drag_x;
int64_t drag_distance;
const Evoral::TimeConverter<double, ARDOUR::sframes_t>& _time_converter;
ARDOUR::AutomationList::InterpolationStyle _interpolation;
void modify_view_point (ControlPoint&, double, double, bool with_push);
void reset_line_coords (ControlPoint&);
double control_point_box_size ();
struct ModelRepresentation {
ARDOUR::AutomationList::iterator start;
ARDOUR::AutomationList::iterator end;
double xpos;
double ypos;
double xmin;
double ymin;
double xmax;
double ymax;
double xval;
double yval;
};
void model_representation (ControlPoint&, ModelRepresentation&);
friend class AudioRegionGainLine;
};
#endif /* __ardour_automation_line_h__ */
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