use -r argument with JACK if realtime is not requested in engine dialog (also applied...
[ArdourMidi.git] / gtk2_ardour / automation_line.h
blob2b63cb1295db86c37ea0eb93dc8992f70c2d1423
1 /*
2 Copyright (C) 2002 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __ardour_automation_line_h__
21 #define __ardour_automation_line_h__
23 #include <vector>
24 #include <list>
25 #include <string>
26 #include <sys/types.h>
28 #include <libgnomecanvasmm/line.h>
29 #include <sigc++/signal.h>
30 #include "canvas.h"
31 #include "simplerect.h"
33 #include "evoral/TimeConverter.hpp"
35 #include "pbd/undo.h"
36 #include "pbd/statefuldestructible.h"
37 #include "pbd/memento_command.h"
39 #include "ardour/automation_list.h"
40 #include "ardour/types.h"
42 class AutomationLine;
43 class ControlPoint;
44 class PointSelection;
45 class TimeAxisView;
46 class AutomationTimeAxisView;
47 class Selectable;
48 class Selection;
50 namespace Gnome {
51 namespace Canvas {
52 class SimpleRect;
56 /** A GUI representation of an ARDOUR::AutomationList */
57 class AutomationLine : public sigc::trackable, public PBD::StatefulDestructible
59 public:
60 AutomationLine (const std::string& name, TimeAxisView&, ArdourCanvas::Group&,
61 boost::shared_ptr<ARDOUR::AutomationList>,
62 const Evoral::TimeConverter<double, ARDOUR::sframes_t>* converter = 0);
63 virtual ~AutomationLine ();
65 void queue_reset ();
66 void reset ();
67 void clear();
69 std::list<ControlPoint*> point_selection_to_control_points (PointSelection const &);
70 void set_selected_points (PointSelection&);
71 void get_selectables (nframes_t& start, nframes_t& end,
72 double botfrac, double topfrac,
73 std::list<Selectable*>& results);
74 void get_inverted_selectables (Selection&, std::list<Selectable*>& results);
76 virtual void remove_point (ControlPoint&);
77 bool control_points_adjacent (double xval, uint32_t& before, uint32_t& after);
79 /* dragging API */
80 virtual void start_drag_single (ControlPoint*, double, float);
81 virtual void start_drag_line (uint32_t, uint32_t, float);
82 virtual void start_drag_multiple (std::list<ControlPoint*>, float, XMLNode *);
83 virtual std::pair<double, float> drag_motion (double, float, bool, bool);
84 virtual void end_drag ();
86 ControlPoint* nth (uint32_t);
87 uint32_t npoints() const { return control_points.size(); }
89 std::string name() const { return _name; }
90 bool visible() const { return _visible; }
91 guint32 height() const { return _height; }
93 void set_line_color (uint32_t);
94 uint32_t get_line_color() const { return _line_color; }
96 void show ();
97 void hide ();
98 void set_height (guint32);
99 void set_uses_gain_mapping (bool yn);
100 bool get_uses_gain_mapping () const { return _uses_gain_mapping; }
102 TimeAxisView& trackview;
104 ArdourCanvas::Group& canvas_group() const { return *group; }
105 ArdourCanvas::Item& parent_group() const { return _parent_group; }
106 ArdourCanvas::Item& grab_item() const { return *line; }
108 std::string get_verbose_cursor_string (double) const;
109 std::string fraction_to_string (double) const;
110 double string_to_fraction (std::string const &) const;
111 void view_to_model_coord (double& x, double& y) const;
112 void view_to_model_coord_x (double &) const;
113 void view_to_model_coord_y (double &) const;
114 void model_to_view_coord (double& x, double& y) const;
116 void set_list(boost::shared_ptr<ARDOUR::AutomationList> list);
117 boost::shared_ptr<ARDOUR::AutomationList> the_list() const { return alist; }
119 void show_all_control_points ();
120 void hide_all_but_selected_control_points ();
122 void track_entered();
123 void track_exited();
125 bool is_last_point (ControlPoint &);
126 bool is_first_point (ControlPoint &);
128 XMLNode& get_state (void);
129 int set_state (const XMLNode&, int version);
130 void set_colors();
132 void modify_point_y (ControlPoint&, double);
134 void add_always_in_view (double);
135 void clear_always_in_view ();
137 virtual MementoCommandBinder<ARDOUR::AutomationList>* memento_command_binder ();
139 protected:
141 std::string _name;
142 guint32 _height;
143 uint32_t _line_color;
145 boost::shared_ptr<ARDOUR::AutomationList> alist;
147 bool _visible : 1;
148 bool _uses_gain_mapping : 1;
149 bool terminal_points_can_slide : 1;
150 bool update_pending : 1;
151 bool no_draw : 1;
152 bool points_visible : 1;
153 bool did_push;
155 ArdourCanvas::Group& _parent_group;
156 ArdourCanvas::Group* group;
157 ArdourCanvas::Line* line; /* line */
158 ArdourCanvas::Points line_points; /* coordinates for canvas line */
159 std::vector<ControlPoint*> control_points; /* visible control points */
161 struct ALPoint {
162 double x;
163 double y;
164 ALPoint (double xx, double yy) : x(xx), y(yy) {}
167 typedef std::vector<ALPoint> ALPoints;
169 static void invalidate_point (ALPoints&, uint32_t index);
170 static bool invalid_point (ALPoints&, uint32_t index);
172 void determine_visible_control_points (ALPoints&);
173 void sync_model_with_view_point (ControlPoint&, bool, int64_t);
174 void sync_model_with_view_points (std::list<ControlPoint*>, bool, int64_t);
175 void start_drag_common (double, float);
177 virtual void change_model (ARDOUR::AutomationList::iterator, double x, double y);
179 void reset_callback (const Evoral::ControlList&);
180 void list_changed ();
182 virtual bool event_handler (GdkEvent*);
183 virtual void add_model_point (ALPoints& tmp_points, double frame, double yfract);
185 private:
186 std::list<ControlPoint*> _drag_points; ///< points we are dragging
187 std::list<ControlPoint*> _push_points; ///< additional points we are dragging if "push" is enabled
188 bool _drag_had_movement; ///< true if the drag has seen movement, otherwise false
189 double _drag_x; ///< last x position of the drag, in units
190 double _drag_distance; ///< total x movement of the drag, in units
191 double _last_drag_fraction; ///< last y position of the drag, as a fraction
192 std::list<double> _always_in_view;
194 const Evoral::TimeConverter<double, ARDOUR::sframes_t>& _time_converter;
196 void reset_line_coords (ControlPoint&);
197 void add_visible_control_point (uint32_t, uint32_t, double, double, ARDOUR::AutomationList::iterator, uint32_t);
198 double control_point_box_size ();
199 void connect_to_list ();
200 void interpolation_changed (ARDOUR::AutomationList::InterpolationStyle);
202 struct ModelRepresentation {
203 ARDOUR::AutomationList::iterator start;
204 ARDOUR::AutomationList::iterator end;
205 double xpos;
206 double ypos;
207 double xmin;
208 double ymin;
209 double xmax;
210 double ymax;
211 double xval;
212 double yval;
215 void model_representation (ControlPoint&, ModelRepresentation&);
217 PBD::ScopedConnectionList _list_connections;
219 friend class AudioRegionGainLine;
222 #endif /* __ardour_automation_line_h__ */