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 uint32_t get_fill_color () const;
90 virtual GhostRegion* add_ghost (TimeAxisView&) = 0;
91 void remove_ghost_in (TimeAxisView&);
92 void remove_ghost (GhostRegion*);
94 virtual void entered () {}
95 virtual void exited () {}
97 virtual void enable_display(bool yn) { _enable_display = yn; }
98 virtual void update_coverage_frames (LayerDisplay);
100 static PBD::Signal1<void,RegionView*> RegionViewGoingAway;
102 /** Called when a front trim is about to begin */
103 virtual void trim_front_starting () {}
105 bool trim_front (framepos_t, bool);
107 /** Called when a start trim has finished */
108 virtual void trim_front_ending () {}
110 bool trim_end (framepos_t, bool);
111 void move_contents (ARDOUR::frameoffset_t);
112 virtual void thaw_after_trim ();
114 void set_silent_frames (const ARDOUR::AudioIntervalResult&, double threshold);
115 void drop_silent_frames ();
116 void hide_silent_frames ();
118 struct PositionOrder {
119 bool operator()(const RegionView* a, const RegionView* b) {
120 return a->region()->position() < b->region()->position();
124 ARDOUR::frameoffset_t snap_frame_to_frame (ARDOUR::frameoffset_t, bool ensure_snap = false) const;
128 /** Allows derived types to specify their visibility requirements
129 * to the TimeAxisViewItem parent class
131 RegionView (ArdourCanvas::Container *,
133 boost::shared_ptr<ARDOUR::Region>,
134 double samples_per_pixel,
135 uint32_t basic_color,
137 TimeAxisViewItem::Visibility);
139 bool canvas_group_event (GdkEvent*);
141 virtual void region_resized (const PBD::PropertyChange&);
142 virtual void region_muted ();
143 void region_locked ();
144 void region_opacity ();
145 virtual void region_renamed ();
146 void region_sync_changed ();
148 std::string make_name () const;
150 static gint _lock_toggle (ArdourCanvas::Item*, GdkEvent*, void*);
153 virtual void set_colors ();
154 virtual void set_sync_mark_color ();
155 virtual void reset_width_dependent_items (double pixel_width);
157 virtual void color_handler () {}
159 boost::shared_ptr<ARDOUR::Region> _region;
161 ArdourCanvas::Polygon* sync_mark; ///< polgyon for sync position
162 ArdourCanvas::Line* sync_line; ///< polgyon for sync position
164 RegionEditor* editor;
166 std::vector<ControlPoint *> control_points;
167 double current_visible_sync_position;
169 bool valid; ///< see StreamView::redisplay_diskstream()
170 bool _enable_display; ///< see StreamView::redisplay_diskstream()
176 std::vector<GhostRegion*> ghosts;
178 /** a list of rectangles which are used in stacked display mode to colour
179 different bits of regions according to whether or not they are the one
180 that will be played at any given time.
182 std::list<ArdourCanvas::Rectangle*> _coverage_frames;
184 /** a list of rectangles used to show silent segments
186 std::list<ArdourCanvas::Rectangle*> _silent_frames;
187 /** a list of rectangles used to show the current silence threshold
189 std::list<ArdourCanvas::Rectangle*> _silent_threshold_frames;
190 /** a text item to display strip silence statistics
192 ArdourCanvas::Text* _silence_text;
195 #endif /* __gtk_ardour_region_view_h__ */