2 Copyright (C) 2001-2006 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.
19 #ifndef __gtk_ardour_region_view_h__
20 #define __gtk_ardour_region_view_h__
28 #include <sigc++/signal.h>
29 #include "ardour/region.h"
30 #include "ardour/beats_frames_converter.h"
32 #include "canvas/fwd.h"
34 #include "time_axis_view_item.h"
35 #include "automation_line.h"
41 class AutomationTimeAxisView;
42 class AutomationRegionView;
44 namespace ArdourCanvas {
49 class RegionView : public TimeAxisViewItem
52 RegionView (ArdourCanvas::Container* parent,
53 TimeAxisView& time_view,
54 boost::shared_ptr<ARDOUR::Region> region,
55 double samples_per_pixel,
57 bool automation = false);
59 RegionView (const RegionView& other);
60 RegionView (const RegionView& other, boost::shared_ptr<ARDOUR::Region> other_region);
64 virtual void init (bool wait_for_data);
66 boost::shared_ptr<ARDOUR::Region> region() const { return _region; }
68 bool is_valid() const { return valid; }
70 void set_valid (bool yn) { valid = yn; }
72 virtual void set_height (double);
73 virtual void set_samples_per_pixel (double);
74 virtual bool set_duration (framecnt_t, void*);
76 void move (double xdelta, double ydelta);
79 void lower_to_bottom ();
81 bool set_position(framepos_t pos, void* src, double* delta = 0);
83 virtual void show_region_editor ();
84 void hide_region_editor ();
86 virtual void region_changed (const PBD::PropertyChange&);
88 virtual GhostRegion* add_ghost (TimeAxisView&) = 0;
89 void remove_ghost_in (TimeAxisView&);
90 void remove_ghost (GhostRegion*);
92 virtual void entered () {}
93 virtual void exited () {}
95 virtual void enable_display(bool yn) { _enable_display = yn; }
96 virtual void update_coverage_frames (LayerDisplay);
98 static PBD::Signal1<void,RegionView*> RegionViewGoingAway;
100 /** Called when a front trim is about to begin */
101 virtual void trim_front_starting () {}
103 bool trim_front (framepos_t, bool);
105 /** Called when a start trim has finished */
106 virtual void trim_front_ending () {}
108 bool trim_end (framepos_t, bool);
109 void move_contents (ARDOUR::frameoffset_t);
110 virtual void thaw_after_trim ();
112 void set_silent_frames (const ARDOUR::AudioIntervalResult&, double threshold);
113 void drop_silent_frames ();
114 void hide_silent_frames ();
116 ARDOUR::frameoffset_t snap_frame_to_frame (ARDOUR::frameoffset_t) const;
120 /** Allows derived types to specify their visibility requirements
121 * to the TimeAxisViewItem parent class
123 RegionView (ArdourCanvas::Container *,
125 boost::shared_ptr<ARDOUR::Region>,
126 double samples_per_pixel,
127 uint32_t basic_color,
129 TimeAxisViewItem::Visibility);
131 bool canvas_group_event (GdkEvent*);
133 virtual void region_resized (const PBD::PropertyChange&);
134 virtual void region_muted ();
135 void region_locked ();
136 void region_opacity ();
137 virtual void region_renamed ();
138 void region_sync_changed ();
140 std::string make_name () const;
142 static gint _lock_toggle (ArdourCanvas::Item*, GdkEvent*, void*);
145 virtual void set_colors ();
146 virtual void set_frame_color ();
147 virtual void reset_width_dependent_items (double pixel_width);
149 uint32_t fill_opacity () const;
151 virtual void color_handler () {}
153 boost::shared_ptr<ARDOUR::Region> _region;
155 ArdourCanvas::Polygon* sync_mark; ///< polgyon for sync position
156 ArdourCanvas::Line* sync_line; ///< polgyon for sync position
158 RegionEditor* editor;
160 std::vector<ControlPoint *> control_points;
161 double current_visible_sync_position;
163 bool valid; ///< see StreamView::redisplay_diskstream()
164 bool _enable_display; ///< see StreamView::redisplay_diskstream()
170 std::vector<GhostRegion*> ghosts;
172 /** a list of rectangles which are used in stacked display mode to colour
173 different bits of regions according to whether or not they are the one
174 that will be played at any given time.
176 std::list<ArdourCanvas::Rectangle*> _coverage_frames;
178 /** a list of rectangles used to show silent segments
180 std::list<ArdourCanvas::Rectangle*> _silent_frames;
181 /** a list of rectangles used to show the current silence threshold
183 std::list<ArdourCanvas::Rectangle*> _silent_threshold_frames;
184 /** a text item to display strip silence statistics
186 ArdourCanvas::Text* _silence_text;
189 #endif /* __gtk_ardour_region_view_h__ */