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__
24 #include <sigc++/signal.h>
25 #include "ardour/audioregion.h"
27 #include "canvas/fwd.h"
28 #include "canvas/wave_view.h"
30 #include "region_view.h"
31 #include "time_axis_view_item.h"
32 #include "automation_line.h"
40 class AudioTimeAxisView;
41 class AudioRegionGainLine;
43 class AutomationTimeAxisView;
44 class RouteTimeAxisView;
46 class AudioRegionView : public RegionView
49 AudioRegionView (ArdourCanvas::Group *,
51 boost::shared_ptr<ARDOUR::AudioRegion>,
52 double initial_samples_per_pixel,
53 Gdk::Color const & basic_color);
55 AudioRegionView (ArdourCanvas::Group *,
57 boost::shared_ptr<ARDOUR::AudioRegion>,
58 double samples_per_pixel,
59 Gdk::Color const & basic_color,
61 TimeAxisViewItem::Visibility);
63 AudioRegionView (const AudioRegionView& other, boost::shared_ptr<ARDOUR::AudioRegion>);
67 virtual void init (Gdk::Color const & base_color, bool wait_for_data);
69 boost::shared_ptr<ARDOUR::AudioRegion> audio_region() const;
73 void set_height (double);
74 void set_samples_per_pixel (double);
76 void set_amplitude_above_axis (gdouble spp);
78 void temporarily_hide_envelope (); ///< Dangerous!
79 void unhide_envelope (); ///< Dangerous!
81 void update_envelope_visibility ();
83 void add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *event);
84 void remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent *event);
86 boost::shared_ptr<AudioRegionGainLine> get_gain_line() const { return gain_line; }
88 void region_changed (const PBD::PropertyChange&);
89 void envelope_active_changed ();
91 GhostRegion* add_ghost (TimeAxisView&);
93 void reset_fade_in_shape_width (boost::shared_ptr<ARDOUR::AudioRegion> ar, framecnt_t);
94 void reset_fade_out_shape_width (boost::shared_ptr<ARDOUR::AudioRegion> ar, framecnt_t);
96 framepos_t get_fade_in_shape_width ();
97 framepos_t get_fade_out_shape_width ();
99 void set_fade_visibility (bool);
100 void update_coverage_frames (LayerDisplay);
102 void update_transient(float old_pos, float new_pos);
103 void remove_transient(float pos);
105 void show_region_editor ();
107 virtual void entered (bool);
108 virtual void exited ();
110 void thaw_after_trim ();
115 void redraw_start_xfade_to (boost::shared_ptr<ARDOUR::AudioRegion>, framecnt_t, ArdourCanvas::Points&, double);
116 void redraw_end_xfade_to (boost::shared_ptr<ARDOUR::AudioRegion>, framecnt_t, ArdourCanvas::Points&, double);
117 void redraw_start_xfade ();
118 void redraw_end_xfade ();
121 void hide_start_xfade ();
122 void hide_end_xfade ();
124 void show_start_xfade ();
125 void show_end_xfade ();
127 bool start_xfade_visible () const {
128 return _start_xfade_visible;
131 bool end_xfade_visible () const {
132 return _end_xfade_visible;
137 /* this constructor allows derived types
138 to specify their visibility requirements
139 to the TimeAxisViewItem parent class
143 WaveformVisible = 0x4,
144 WaveformRectified = 0x8,
145 WaveformLogScaled = 0x10,
148 std::vector<ArdourCanvas::WaveView *> waves;
149 std::vector<ArdourCanvas::WaveView *> tmp_waves; ///< see ::create_waves()
151 std::list<std::pair<framepos_t, ArdourCanvas::Line*> > feature_lines;
153 ArdourCanvas::Polygon* sync_mark; ///< polgyon for sync position
154 ArdourCanvas::Polygon* fade_in_shape;
155 ArdourCanvas::Polygon* fade_out_shape;
156 ArdourCanvas::Rectangle* fade_in_handle; ///< fade in handle, or 0
157 ArdourCanvas::Rectangle* fade_out_handle; ///< fade out handle, or 0
159 ArdourCanvas::PolyLine *start_xfade_in;
160 ArdourCanvas::PolyLine *start_xfade_out;
161 ArdourCanvas::Rectangle* start_xfade_rect;
162 bool _start_xfade_visible;
164 ArdourCanvas::PolyLine *end_xfade_in;
165 ArdourCanvas::PolyLine *end_xfade_out;
166 ArdourCanvas::Rectangle* end_xfade_rect;
167 bool _end_xfade_visible;
169 boost::shared_ptr<AudioRegionGainLine> gain_line;
171 double _amplitude_above_axis;
175 void reset_fade_shapes ();
176 void reset_fade_in_shape ();
177 void reset_fade_out_shape ();
178 void fade_in_changed ();
179 void fade_out_changed ();
180 void fade_in_active_changed ();
181 void fade_out_active_changed ();
183 void region_resized (const PBD::PropertyChange&);
184 void region_muted ();
185 void region_scale_amplitude_changed ();
186 void region_renamed ();
188 void create_one_wave (uint32_t, bool);
189 void peaks_ready_handler (uint32_t);
192 void set_waveform_colors ();
193 void set_one_waveform_color (ArdourCanvas::WaveView*);
194 void compute_colors (Gdk::Color const &);
195 void reset_width_dependent_items (double pixel_width);
196 void set_frame_color ();
198 void color_handler ();
200 void transients_changed();
202 AutomationLine::VisibleAspects automation_line_visibility () const;
205 void setup_fade_handle_positions ();
207 void parameter_changed (std::string const &);
208 void setup_waveform_visibility ();
209 void setup_waveform_shape ();
210 void setup_waveform_scale ();
211 void setup_waveform_clipping ();
213 /** A ScopedConnection for each PeaksReady callback (one per channel). Each member
214 * may be 0 if no connection exists.
216 std::vector<PBD::ScopedConnection*> _data_ready_connections;
218 /** RegionViews that we hid the xfades for at the start of the current drag;
219 * first list is for start xfades, second list is for end xfades.
221 std::pair<std::list<AudioRegionView*>, std::list<AudioRegionView*> > _hidden_xfades;
224 #endif /* __gtk_ardour_audio_region_view_h__ */