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_audio_region_view_h__
20 #define __gtk_ardour_audio_region_view_h__
28 #include <sigc++/signal.h>
29 #include "ardour/audioregion.h"
31 #include "canvas/fwd.h"
32 #include "canvas/wave_view.h"
34 #include "region_view.h"
35 #include "time_axis_view_item.h"
36 #include "automation_line.h"
44 class AudioTimeAxisView;
45 class AudioRegionGainLine;
47 class AutomationTimeAxisView;
48 class RouteTimeAxisView;
50 class AudioRegionView : public RegionView
53 AudioRegionView (ArdourCanvas::Group *,
55 boost::shared_ptr<ARDOUR::AudioRegion>,
56 double initial_samples_per_pixel,
57 Gdk::Color const & basic_color);
59 AudioRegionView (ArdourCanvas::Group *,
61 boost::shared_ptr<ARDOUR::AudioRegion>,
62 double samples_per_pixel,
63 Gdk::Color const & basic_color,
65 TimeAxisViewItem::Visibility);
67 AudioRegionView (const AudioRegionView& other, boost::shared_ptr<ARDOUR::AudioRegion>);
71 virtual void init (Gdk::Color const & base_color, bool wait_for_data);
73 boost::shared_ptr<ARDOUR::AudioRegion> audio_region() const;
77 void set_height (double);
78 void set_samples_per_pixel (double);
80 void set_amplitude_above_axis (gdouble spp);
82 void temporarily_hide_envelope (); ///< Dangerous!
83 void unhide_envelope (); ///< Dangerous!
85 void update_envelope_visibility ();
87 void add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *event);
88 void remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent *event);
90 boost::shared_ptr<AudioRegionGainLine> get_gain_line() const { return gain_line; }
92 void region_changed (const PBD::PropertyChange&);
93 void envelope_active_changed ();
95 GhostRegion* add_ghost (TimeAxisView&);
97 void reset_fade_in_shape_width (boost::shared_ptr<ARDOUR::AudioRegion> ar, framecnt_t);
98 void reset_fade_out_shape_width (boost::shared_ptr<ARDOUR::AudioRegion> ar, framecnt_t);
100 framepos_t get_fade_in_shape_width ();
101 framepos_t get_fade_out_shape_width ();
103 void set_fade_visibility (bool);
104 void update_coverage_frames (LayerDisplay);
106 void update_transient(float old_pos, float new_pos);
107 void remove_transient(float pos);
109 void show_region_editor ();
111 virtual void entered (bool);
112 virtual void exited ();
114 void thaw_after_trim ();
119 void redraw_start_xfade_to (boost::shared_ptr<ARDOUR::AudioRegion>, framecnt_t, ArdourCanvas::Points&, double, double);
120 void redraw_end_xfade_to (boost::shared_ptr<ARDOUR::AudioRegion>, framecnt_t, ArdourCanvas::Points&, double, double, double);
121 void redraw_start_xfade ();
122 void redraw_end_xfade ();
125 void hide_start_xfade ();
126 void hide_end_xfade ();
128 void show_start_xfade ();
129 void show_end_xfade ();
131 bool start_xfade_visible () const {
132 return _start_xfade_visible;
135 bool end_xfade_visible () const {
136 return _end_xfade_visible;
141 /* this constructor allows derived types
142 to specify their visibility requirements
143 to the TimeAxisViewItem parent class
147 WaveformVisible = 0x4,
148 WaveformRectified = 0x8,
149 WaveformLogScaled = 0x10,
152 std::vector<ArdourCanvas::WaveView *> waves;
153 std::vector<ArdourCanvas::WaveView *> tmp_waves; ///< see ::create_waves()
155 std::list<std::pair<framepos_t, ArdourCanvas::Line*> > feature_lines;
157 ArdourCanvas::Polygon* sync_mark; ///< polgyon for sync position
158 ArdourCanvas::PolyLine* fade_in_shape;
159 ArdourCanvas::PolyLine* fade_out_shape;
160 ArdourCanvas::Rectangle* fade_in_handle; ///< fade in handle, or 0
161 ArdourCanvas::Rectangle* fade_out_handle; ///< fade out handle, or 0
163 ArdourCanvas::PolyLine *start_xfade_in;
164 ArdourCanvas::PolyLine *start_xfade_out;
165 ArdourCanvas::Rectangle* start_xfade_rect;
166 bool _start_xfade_visible;
168 ArdourCanvas::PolyLine *end_xfade_in;
169 ArdourCanvas::PolyLine *end_xfade_out;
170 ArdourCanvas::Rectangle* end_xfade_rect;
171 bool _end_xfade_visible;
173 boost::shared_ptr<AudioRegionGainLine> gain_line;
175 double _amplitude_above_axis;
179 void reset_fade_shapes ();
180 void reset_fade_in_shape ();
181 void reset_fade_out_shape ();
182 void fade_in_changed ();
183 void fade_out_changed ();
184 void fade_in_active_changed ();
185 void fade_out_active_changed ();
187 void region_resized (const PBD::PropertyChange&);
188 void region_muted ();
189 void region_scale_amplitude_changed ();
190 void region_renamed ();
192 void create_one_wave (uint32_t, bool);
193 void peaks_ready_handler (uint32_t);
196 void set_waveform_colors ();
197 void set_one_waveform_color (ArdourCanvas::WaveView*);
198 void compute_colors (Gdk::Color const &);
199 void reset_width_dependent_items (double pixel_width);
200 void set_frame_color ();
202 void color_handler ();
204 void transients_changed();
206 AutomationLine::VisibleAspects automation_line_visibility () const;
209 void setup_fade_handle_positions ();
211 void parameter_changed (std::string const &);
212 void setup_waveform_visibility ();
213 void setup_waveform_shape ();
214 void setup_waveform_scale ();
215 void setup_waveform_clipping ();
217 /** A ScopedConnection for each PeaksReady callback (one per channel). Each member
218 * may be 0 if no connection exists.
220 std::vector<PBD::ScopedConnection*> _data_ready_connections;
222 /** RegionViews that we hid the xfades for at the start of the current drag;
223 * first list is for start xfades, second list is for end xfades.
225 std::pair<std::list<AudioRegionView*>, std::list<AudioRegionView*> > _hidden_xfades;
228 #endif /* __gtk_ardour_audio_region_view_h__ */