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::Group* parent,
53 TimeAxisView& time_view,
54 boost::shared_ptr<ARDOUR::Region> region,
55 double samples_per_pixel,
56 Gdk::Color const & basic_color,
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 (Gdk::Color const & base_color, 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);
82 void fake_set_opaque (bool yn);
84 virtual void show_region_editor ();
85 void hide_region_editor ();
87 virtual void region_changed (const PBD::PropertyChange&);
89 virtual GhostRegion* add_ghost (TimeAxisView&) = 0;
90 void remove_ghost_in (TimeAxisView&);
91 void remove_ghost (GhostRegion*);
93 uint32_t get_fill_color ();
95 virtual void entered (bool) {}
96 virtual void exited () {}
98 virtual void enable_display(bool yn) { _enable_display = yn; }
99 virtual void update_coverage_frames (LayerDisplay);
101 static PBD::Signal1<void,RegionView*> RegionViewGoingAway;
103 ARDOUR::BeatsFramesConverter const & region_relative_time_converter () const {
104 return _region_relative_time_converter;
107 ARDOUR::BeatsFramesConverter const & source_relative_time_converter () const {
108 return _source_relative_time_converter;
111 /** Called when a front trim is about to begin */
112 virtual void trim_front_starting () {}
114 bool trim_front (framepos_t, bool);
116 /** Called when a start trim has finished */
117 virtual void trim_front_ending () {}
119 bool trim_end (framepos_t, bool);
120 void move_contents (ARDOUR::frameoffset_t);
121 virtual void thaw_after_trim ();
123 void set_silent_frames (const ARDOUR::AudioIntervalResult&, double threshold);
124 void drop_silent_frames ();
125 void hide_silent_frames ();
127 ARDOUR::frameoffset_t snap_frame_to_frame (ARDOUR::frameoffset_t) const;
131 /** Allows derived types to specify their visibility requirements
132 * to the TimeAxisViewItem parent class
134 RegionView (ArdourCanvas::Group *,
136 boost::shared_ptr<ARDOUR::Region>,
137 double samples_per_pixel,
138 Gdk::Color const & basic_color,
140 TimeAxisViewItem::Visibility);
142 bool canvas_group_event (GdkEvent*);
144 virtual void region_resized (const PBD::PropertyChange&);
145 virtual void region_muted ();
146 void region_locked ();
147 void region_opacity ();
148 virtual void region_renamed ();
149 void region_sync_changed ();
151 std::string make_name () const;
153 static gint _lock_toggle (ArdourCanvas::Item*, GdkEvent*, void*);
156 virtual void set_colors ();
157 virtual void set_frame_color ();
158 virtual void reset_width_dependent_items (double pixel_width);
160 virtual void color_handler () {}
162 boost::shared_ptr<ARDOUR::Region> _region;
164 ArdourCanvas::Polygon* sync_mark; ///< polgyon for sync position
165 ArdourCanvas::Line* sync_line; ///< polgyon for sync position
167 RegionEditor* editor;
169 std::vector<ControlPoint *> control_points;
170 double current_visible_sync_position;
172 bool valid; ///< see StreamView::redisplay_diskstream()
173 bool _enable_display; ///< see StreamView::redisplay_diskstream()
179 std::vector<GhostRegion*> ghosts;
181 /** a list of rectangles which are used in stacked display mode to colour
182 different bits of regions according to whether or not they are the one
183 that will be played at any given time.
185 std::list<ArdourCanvas::Rectangle*> _coverage_frames;
187 /** a list of rectangles used to show silent segments
189 std::list<ArdourCanvas::Rectangle*> _silent_frames;
190 /** a list of rectangles used to show the current silence threshold
192 std::list<ArdourCanvas::Rectangle*> _silent_threshold_frames;
193 /** a text item to display strip silence statistics
195 ArdourCanvas::Text* _silence_text;
197 ARDOUR::BeatsFramesConverter _region_relative_time_converter;
198 ARDOUR::BeatsFramesConverter _source_relative_time_converter;
201 #endif /* __gtk_ardour_region_view_h__ */