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.
21 #ifndef __ardour_automation_line_h__
22 #define __ardour_automation_line_h__
27 #include <sys/types.h>
30 #include <libgnomecanvasmm/libgnomecanvasmm.h>
31 #include <sigc++/signal.h>
35 #include <ardour/automation_event.h>
45 class AutomationTimeAxisView;
58 ControlPoint (AutomationLine& al, sigc::slot<bool,GdkEvent*,ControlPoint*>);
59 ControlPoint (const ControlPoint&, bool dummy_arg_to_force_special_copy_constructor);
68 void move_to (double x, double y, ShapeType);
69 void reset (double x, double y, ARDOUR::AutomationList::iterator, uint32_t, ShapeType);
70 double get_x() const { return _x; }
71 double get_y() const { return _y; }
75 void show_color (bool entered, bool hide_too);
77 void set_size (double);
78 void set_visible (bool);
80 Gnome::Canvas::SimpleRect* item;
83 ARDOUR::AutomationList::iterator model;
94 class AutomationLine : public sigc::trackable
97 AutomationLine (string name, TimeAxisView&, Gnome::Canvas::Group&, ARDOUR::AutomationList&,
98 sigc::slot<bool,GdkEvent*,ControlPoint*>, sigc::slot<bool,GdkEvent*,AutomationLine*>);
100 virtual ~AutomationLine ();
106 void set_selected_points (PointSelection&);
107 void get_selectables (jack_nframes_t& start, jack_nframes_t& end,
108 double botfrac, double topfrac,
109 list<Selectable*>& results);
110 void get_inverted_selectables (Selection&, list<Selectable*>& results);
112 virtual void remove_point (ControlPoint&);
113 bool control_points_adjacent (double xval, uint32_t& before, uint32_t& after);
117 virtual void start_drag (ControlPoint*, float fraction);
118 virtual void point_drag(ControlPoint&, jack_nframes_t x, float, bool with_push);
119 virtual void end_drag (ControlPoint*);
120 virtual void line_drag(uint32_t i1, uint32_t i2, float, bool with_push);
122 ControlPoint* nth (uint32_t);
123 uint32_t npoints() const { return control_points.size(); }
125 string name() const { return _name; }
126 bool visible() const { return _visible; }
127 guint32 height() const { return _height; }
129 void set_line_color (uint32_t);
130 uint32_t get_line_color() const { return _line_color; }
134 void set_height (guint32);
135 void set_verbose_cursor_uses_gain_mapping (bool yn);
137 TimeAxisView& trackview;
139 Gnome::Canvas::Group& canvas_group() const { return *group; }
140 Gnome::Canvas::Item& parent_group() const { return _parent_group; }
141 Gnome::Canvas::Item& grab_item() const { return *line; }
143 void show_selection();
144 void hide_selection ();
146 void set_point_size (double size);
148 virtual string get_verbose_cursor_string (float);
149 virtual void view_to_model_y (double&) = 0;
150 virtual void model_to_view_y (double&) = 0;
152 ARDOUR::AutomationList& the_list() const { return alist; }
154 void show_all_control_points ();
155 void hide_all_but_selected_control_points ();
157 bool is_last_point (ControlPoint &);
158 bool is_first_point (ControlPoint &);
163 uint32_t _line_color;
164 ARDOUR::AutomationList& alist;
167 bool _vc_uses_gain_mapping : 1;
168 bool terminal_points_can_slide : 1;
169 bool update_pending : 1;
171 bool points_visible : 1;
173 Gnome::Canvas::Group& _parent_group;
174 Gnome::Canvas::Group* group;
175 Gnome::Canvas::Line* line; /* line */
176 Gnome::Canvas::Points line_points; /* coordinates for canvas line */
177 vector<ControlPoint*> control_points; /* visible control points */
179 sigc::slot<bool,GdkEvent*,ControlPoint*> point_slot;
184 ALPoint (double xx, double yy) : x(xx), y(yy) {}
187 typedef std::vector<ALPoint> ALPoints;
189 static void invalidate_point (ALPoints&, uint32_t index);
190 static bool invalid_point (ALPoints&, uint32_t index);
192 void determine_visible_control_points (ALPoints&);
193 void sync_model_from (ControlPoint&);
194 void sync_model_with_view_point (ControlPoint&);
195 void sync_model_with_view_line (uint32_t, uint32_t);
196 void modify_view (ControlPoint&, double, double, bool with_push);
198 virtual void change_model (ARDOUR::AutomationList::iterator, double x, double y);
199 virtual void change_model_range (ARDOUR::AutomationList::iterator,ARDOUR::AutomationList::iterator, double delta, float ydelta);
201 void reset_callback (const ARDOUR::AutomationList&);
202 void list_changed (ARDOUR::Change);
204 UndoAction get_memento();
208 double first_drag_fraction;
209 double last_drag_fraction;
210 uint32_t line_drag_cp1;
211 uint32_t line_drag_cp2;
213 void modify_view_point(ControlPoint&, double, double, bool with_push);
214 void reset_line_coords (ControlPoint&);
217 struct ModelRepresentation {
218 ARDOUR::AutomationList::iterator start;
219 ARDOUR::AutomationList::iterator end;
230 void model_representation (ControlPoint&, ModelRepresentation&);
232 friend class AudioRegionGainLine;
235 #endif /* __ardour_automation_line_h__ */