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, const int32_t sub_num);
107 /** Called when a start trim has finished */
108 virtual void trim_front_ending () {}
110 bool trim_end (framepos_t, bool, const int32_t sub_num);
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::MusicFrame 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 */
191 ArdourCanvas::Text* _silence_text;
194 #endif /* __gtk_ardour_region_view_h__ */