2005-09-25 14:42:24 -04:00
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/*
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Copyright (C) 2002 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __ardour_automation_line_h__
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#define __ardour_automation_line_h__
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#include <vector>
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#include <list>
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#include <string>
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#include <sys/types.h>
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2005-11-23 12:21:12 -05:00
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#include <libgnomecanvasmm/line.h>
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#include <sigc++/signal.h>
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#include "canvas.h"
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#include "simplerect.h"
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2005-09-25 14:42:24 -04:00
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#include <pbd/undo.h>
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#include <pbd/statefuldestructible.h>
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#include <ardour/automation_event.h>
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2005-11-12 22:53:51 -05:00
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2005-09-25 14:42:24 -04:00
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using std::vector;
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using std::string;
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class AutomationLine;
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class ControlPoint;
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class PointSelection;
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class TimeAxisView;
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class AutomationTimeAxisView;
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class Selectable;
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class Selection;
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2005-11-13 13:13:50 -05:00
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namespace Gnome {
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namespace Canvas {
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class SimpleRect;
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}
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}
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class AutomationLine : public sigc::trackable, public PBD::StatefulThingWithGoingAway
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{
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public:
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AutomationLine (const string & name, TimeAxisView&, ArdourCanvas::Group&, boost::shared_ptr<ARDOUR::AutomationList>);
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virtual ~AutomationLine ();
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void queue_reset ();
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void reset ();
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void clear();
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void set_selected_points (PointSelection&);
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void get_selectables (nframes_t& start, nframes_t& end,
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double botfrac, double topfrac,
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list<Selectable*>& results);
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void get_inverted_selectables (Selection&, list<Selectable*>& results);
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virtual void remove_point (ControlPoint&);
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bool control_points_adjacent (double xval, uint32_t& before, uint32_t& after);
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/* dragging API */
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virtual void start_drag (ControlPoint*, nframes_t x, float fraction);
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virtual void point_drag(ControlPoint&, nframes_t x, float, bool with_push);
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virtual void end_drag (ControlPoint*);
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virtual void line_drag(uint32_t i1, uint32_t i2, float, bool with_push);
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ControlPoint* nth (uint32_t);
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uint32_t npoints() const { return control_points.size(); }
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string name() const { return _name; }
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bool visible() const { return _visible; }
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guint32 height() const { return _height; }
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guint32 y_position() const { return _y_position; }
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void set_line_color (uint32_t);
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uint32_t get_line_color() const { return _line_color; }
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void set_interpolation(ARDOUR::AutomationList::InterpolationStyle style);
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void show ();
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void hide ();
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void set_y_position_and_height (double, double);
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void set_verbose_cursor_uses_gain_mapping (bool yn);
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TimeAxisView& trackview;
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ArdourCanvas::Group& canvas_group() const { return *group; }
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ArdourCanvas::Item& parent_group() const { return _parent_group; }
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ArdourCanvas::Item& grab_item() const { return *line; }
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void show_selection();
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void hide_selection ();
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virtual string get_verbose_cursor_string (double);
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virtual void view_to_model_y (double&);
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virtual void model_to_view_y (double&);
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boost::shared_ptr<ARDOUR::AutomationList> the_list() const { return alist; }
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void show_all_control_points ();
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void hide_all_but_selected_control_points ();
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2007-07-06 23:19:04 -04:00
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void track_entered();
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void track_exited();
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bool is_last_point (ControlPoint &);
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bool is_first_point (ControlPoint &);
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XMLNode& get_state (void);
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int set_state (const XMLNode&);
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void set_colors();
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protected:
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string _name;
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guint32 _y_position;
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guint32 _height;
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uint32_t _line_color;
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boost::shared_ptr<ARDOUR::AutomationList> alist;
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bool _visible : 1;
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bool _vc_uses_gain_mapping : 1;
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bool terminal_points_can_slide : 1;
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bool update_pending : 1;
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bool no_draw : 1;
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bool points_visible : 1;
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bool did_push;
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ArdourCanvas::Group& _parent_group;
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ArdourCanvas::Group* group;
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ArdourCanvas::Line* line; /* line */
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ArdourCanvas::Points line_points; /* coordinates for canvas line */
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vector<ControlPoint*> control_points; /* visible control points */
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struct ALPoint {
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double x;
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double y;
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ALPoint (double xx, double yy) : x(xx), y(yy) {}
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};
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typedef std::vector<ALPoint> ALPoints;
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static void invalidate_point (ALPoints&, uint32_t index);
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static bool invalid_point (ALPoints&, uint32_t index);
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void determine_visible_control_points (ALPoints&);
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void sync_model_with_view_point (ControlPoint&, bool did_push, int64_t distance);
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void sync_model_with_view_line (uint32_t, uint32_t);
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virtual void change_model (ARDOUR::AutomationList::iterator, double x, double y);
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virtual void change_model_range (ARDOUR::AutomationList::iterator,ARDOUR::AutomationList::iterator, double delta, float ydelta);
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2008-09-18 20:47:49 -04:00
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void reset_callback (const Evoral::ControlList&);
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void list_changed ();
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virtual bool event_handler (GdkEvent*);
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private:
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uint32_t drags;
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double first_drag_fraction;
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double last_drag_fraction;
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uint32_t line_drag_cp1;
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uint32_t line_drag_cp2;
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int64_t drag_x;
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int64_t drag_distance;
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ARDOUR::AutomationList::InterpolationStyle _interpolation;
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void modify_view_point(ControlPoint&, double, double, bool with_push);
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void reset_line_coords (ControlPoint&);
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2006-10-31 16:48:51 -05:00
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double control_point_box_size ();
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struct ModelRepresentation {
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ARDOUR::AutomationList::iterator start;
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ARDOUR::AutomationList::iterator end;
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nframes_t xpos;
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double ypos;
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nframes_t xmin;
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double ymin;
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nframes_t xmax;
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double ymax;
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nframes_t xval;
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double yval;
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};
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void model_representation (ControlPoint&, ModelRepresentation&);
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friend class AudioRegionGainLine;
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};
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#endif /* __ardour_automation_line_h__ */
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