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__
24 #include <libgnomecanvasmm.h>
25 #include <libgnomecanvasmm/polygon.h>
26 #include <sigc++/signal.h>
27 #include "ardour/region.h"
28 #include "ardour/beats_frames_converter.h"
30 #include "time_axis_view_item.h"
31 #include "automation_line.h"
38 class AutomationTimeAxisView;
39 class AutomationRegionView;
41 namespace Gnome { namespace Canvas {
45 class RegionView : public TimeAxisViewItem
48 RegionView (ArdourCanvas::Group* parent,
49 TimeAxisView& time_view,
50 boost::shared_ptr<ARDOUR::Region> region,
51 double samples_per_unit,
52 Gdk::Color const & basic_color,
53 bool automation = false);
55 RegionView (const RegionView& other);
56 RegionView (const RegionView& other, boost::shared_ptr<ARDOUR::Region> other_region);
60 virtual void init (Gdk::Color const & base_color, bool wait_for_data);
62 boost::shared_ptr<ARDOUR::Region> region() const { return _region; }
64 bool is_valid() const { return valid; }
66 void set_valid (bool yn) { valid = yn; }
68 virtual void set_height (double);
69 virtual void set_samples_per_unit (double);
70 virtual bool set_duration (framecnt_t, void*);
72 void move (double xdelta, double ydelta);
75 void lower_to_bottom ();
77 bool set_position(framepos_t pos, void* src, double* delta = 0);
78 void fake_set_opaque (bool yn);
80 virtual void show_region_editor ();
81 void hide_region_editor ();
83 virtual void region_changed (const PBD::PropertyChange&);
85 virtual GhostRegion* add_ghost (TimeAxisView&) = 0;
86 void remove_ghost_in (TimeAxisView&);
87 void remove_ghost (GhostRegion*);
89 uint32_t get_fill_color ();
91 virtual void entered (bool) {}
92 virtual void exited () {}
94 virtual void enable_display(bool yn) { _enable_display = yn; }
95 virtual void update_coverage_frames (LayerDisplay);
97 static PBD::Signal1<void,RegionView*> RegionViewGoingAway;
99 ARDOUR::BeatsFramesConverter const & region_relative_time_converter () const {
100 return _region_relative_time_converter;
103 ARDOUR::BeatsFramesConverter const & source_relative_time_converter () const {
104 return _source_relative_time_converter;
107 /** Called when a front trim is about to begin */
108 virtual void trim_front_starting () {}
110 void trim_front (framepos_t, bool);
112 /** Called when a start trim has finished */
113 virtual void trim_front_ending () {}
115 void trim_end (framepos_t, bool);
116 void trim_contents (framepos_t, bool, bool);
117 virtual void thaw_after_trim ();
119 void set_silent_frames (const ARDOUR::AudioIntervalResult&, double threshold);
120 void drop_silent_frames ();
121 void hide_silent_frames ();
123 ARDOUR::frameoffset_t snap_frame_to_frame (ARDOUR::frameoffset_t) const;
127 /** Allows derived types to specify their visibility requirements
128 * to the TimeAxisViewItem parent class
130 RegionView (ArdourCanvas::Group *,
132 boost::shared_ptr<ARDOUR::Region>,
133 double samples_per_unit,
134 Gdk::Color const & basic_color,
136 TimeAxisViewItem::Visibility);
138 virtual void region_resized (const PBD::PropertyChange&);
139 virtual void region_muted ();
140 void region_locked ();
141 void region_opacity ();
142 virtual void region_renamed ();
143 void region_sync_changed ();
145 std::string make_name () const;
147 static gint _lock_toggle (ArdourCanvas::Item*, GdkEvent*, void*);
150 virtual void set_colors ();
151 virtual void set_frame_color ();
152 virtual void reset_width_dependent_items (double pixel_width);
154 virtual void color_handler () {}
156 boost::shared_ptr<ARDOUR::Region> _region;
158 ArdourCanvas::Polygon* sync_mark; ///< polgyon for sync position
159 ArdourCanvas::Line* sync_line; ///< polgyon for sync position
161 RegionEditor* editor;
163 std::vector<ControlPoint *> control_points;
164 double current_visible_sync_position;
166 bool valid; ///< see StreamView::redisplay_diskstream()
167 bool _enable_display; ///< see StreamView::redisplay_diskstream()
173 std::vector<GhostRegion*> ghosts;
175 /** a list of rectangles which are used in stacked display mode to colour
176 different bits of regions according to whether or not they are the one
177 that will be played at any given time.
179 std::list<ArdourCanvas::SimpleRect*> _coverage_frames;
181 /** a list of rectangles used to show silent segments
183 std::list<ArdourCanvas::SimpleRect*> _silent_frames;
184 /** a list of rectangles used to show the current silence threshold
186 std::list<ArdourCanvas::SimpleRect*> _silent_threshold_frames;
187 /** a text item to display strip silence statistics
189 ArdourCanvas::NoEventText* _silence_text;
191 ARDOUR::BeatsFramesConverter _region_relative_time_converter;
192 ARDOUR::BeatsFramesConverter _source_relative_time_converter;
195 #endif /* __gtk_ardour_region_view_h__ */