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 <libgnomecanvasmm.h>
25 #include <libgnomecanvasmm/polygon.h>
26 #include <sigc++/signal.h>
27 #include "ardour/audioregion.h"
29 #include "region_view.h"
30 #include "time_axis_view_item.h"
31 #include "automation_line.h"
41 class AudioTimeAxisView
;
42 class AudioRegionGainLine
;
44 class AutomationTimeAxisView
;
45 class RouteTimeAxisView
;
47 class AudioRegionView
: public RegionView
50 AudioRegionView (ArdourCanvas::Group
*,
52 boost::shared_ptr
<ARDOUR::AudioRegion
>,
53 double initial_samples_per_unit
,
54 Gdk::Color
const & basic_color
);
56 AudioRegionView (ArdourCanvas::Group
*,
58 boost::shared_ptr
<ARDOUR::AudioRegion
>,
59 double samples_per_unit
,
60 Gdk::Color
const & basic_color
,
62 TimeAxisViewItem::Visibility
);
64 AudioRegionView (const AudioRegionView
& other
, boost::shared_ptr
<ARDOUR::AudioRegion
>);
68 virtual void init (Gdk::Color
const & base_color
, bool wait_for_data
);
70 boost::shared_ptr
<ARDOUR::AudioRegion
> audio_region() const;
74 void set_height (double);
75 void set_samples_per_unit (double);
77 void set_amplitude_above_axis (gdouble spp
);
79 void temporarily_hide_envelope (); ///< Dangerous!
80 void unhide_envelope (); ///< Dangerous!
82 void set_envelope_visible (bool);
83 void set_waveform_visible (bool yn
);
84 void set_waveform_shape (ARDOUR::WaveformShape
);
85 void set_waveform_scale (ARDOUR::WaveformScale
);
87 bool waveform_rectified() const { return _flags
& WaveformRectified
; }
88 bool waveform_logscaled() const { return _flags
& WaveformLogScaled
; }
89 bool waveform_visible() const { return _flags
& WaveformVisible
; }
90 bool envelope_visible() const { return _flags
& EnvelopeVisible
; }
92 void add_gain_point_event (ArdourCanvas::Item
*item
, GdkEvent
*event
);
93 void remove_gain_point_event (ArdourCanvas::Item
*item
, GdkEvent
*event
);
95 AudioRegionGainLine
* get_gain_line() const { return gain_line
; }
97 void region_changed (const PBD::PropertyChange
&);
98 void envelope_active_changed ();
100 GhostRegion
* add_ghost (TimeAxisView
&);
102 void reset_fade_in_shape_width (framecnt_t
);
103 void reset_fade_out_shape_width (framecnt_t
);
105 void show_fade_line(framepos_t pos
);
106 void hide_fade_line();
108 void set_fade_visibility (bool);
109 void update_coverage_frames (LayerDisplay
);
111 void update_transient(float old_pos
, float new_pos
);
112 void remove_transient(float pos
);
114 void show_region_editor ();
116 virtual void entered (bool);
117 virtual void exited ();
119 void thaw_after_trim ();
123 /* this constructor allows derived types
124 to specify their visibility requirements
125 to the TimeAxisViewItem parent class
129 EnvelopeVisible
= 0x1,
130 WaveformVisible
= 0x4,
131 WaveformRectified
= 0x8,
132 WaveformLogScaled
= 0x10,
135 std::vector
<ArdourCanvas::WaveView
*> waves
;
136 std::vector
<ArdourCanvas::WaveView
*> tmp_waves
; ///< see ::create_waves()
138 std::list
<std::pair
<framepos_t
, ArdourCanvas::Line
*> > feature_lines
;
140 ArdourCanvas::Polygon
* sync_mark
; ///< polgyon for sync position
141 ArdourCanvas::Polygon
* fade_in_shape
;
142 ArdourCanvas::Polygon
* fade_out_shape
;
143 ArdourCanvas::SimpleRect
* fade_in_handle
; ///< fade in handle, or 0
144 ArdourCanvas::SimpleRect
* fade_out_handle
; ///< fade out handle, or 0
145 ArdourCanvas::SimpleLine
* fade_position_line
;
147 AudioRegionGainLine
* gain_line
;
149 double _amplitude_above_axis
;
154 void reset_fade_shapes ();
155 void reset_fade_in_shape ();
156 void reset_fade_out_shape ();
157 void fade_in_changed ();
158 void fade_out_changed ();
159 void fade_in_active_changed ();
160 void fade_out_active_changed ();
162 void region_resized (const PBD::PropertyChange
&);
163 void region_muted ();
164 void region_scale_amplitude_changed ();
165 void region_renamed ();
167 void create_one_wave (uint32_t, bool);
168 void peaks_ready_handler (uint32_t);
169 void set_flags (XMLNode
*);
173 void compute_colors (Gdk::Color
const &);
174 void reset_width_dependent_items (double pixel_width
);
175 void set_waveview_data_src();
176 void set_frame_color ();
178 void color_handler ();
180 std::vector
<GnomeCanvasWaveViewCache
*> wave_caches
;
182 void transients_changed();
186 void setup_fade_handle_positions ();
188 /** A ScopedConnection for each PeaksReady callback (one per channel). Each member
189 * may be 0 if no connection exists.
191 std::vector
<PBD::ScopedConnection
*> _data_ready_connections
;
194 #endif /* __gtk_ardour_audio_region_view_h__ */