summaryrefslogtreecommitdiff
path: root/gtk2_ardour/audio_region_view.h
blob: 5d5822c374f2044dea1659fe40e93fca913e785b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
/*
 * Copyright (C) 2006-2014 David Robillard <d@drobilla.net>
 * Copyright (C) 2007-2012 Carl Hetherington <carl@carlh.net>
 * Copyright (C) 2007 Doug McLain <doug@nostar.net>
 * Copyright (C) 2008-2017 Paul Davis <paul@linuxaudiosystems.com>
 * Copyright (C) 2012 Ben Loftis <ben@harrisonconsoles.com>
 * Copyright (C) 2014-2019 Robin Gareus <robin@gareus.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef __gtk_ardour_audio_region_view_h__
#define __gtk_ardour_audio_region_view_h__

#ifdef interface
#undef interface
#endif

#include <vector>

#include <sigc++/signal.h>
#include "ardour/audioregion.h"

#include "canvas/fwd.h"
#include "canvas/xfade_curve.h"

#include "waveview/wave_view.h"

#include "region_view.h"
#include "time_axis_view_item.h"
#include "automation_line.h"
#include "enums.h"

namespace ARDOUR {
	class AudioRegion;
	struct PeakData;
};

class AudioTimeAxisView;
class AudioRegionGainLine;
class GhostRegion;
class AutomationTimeAxisView;
class RouteTimeAxisView;

class AudioRegionView : public RegionView
{
public:
	AudioRegionView (ArdourCanvas::Container *,
	                 RouteTimeAxisView&,
	                 boost::shared_ptr<ARDOUR::AudioRegion>,
	                 double initial_samples_per_pixel,
	                 uint32_t base_color);

	AudioRegionView (ArdourCanvas::Container *,
	                 RouteTimeAxisView&,
	                 boost::shared_ptr<ARDOUR::AudioRegion>,
	                 double samples_per_pixel,
	                 uint32_t base_color,
	                 bool recording,
	                 TimeAxisViewItem::Visibility);

	AudioRegionView (const AudioRegionView& other, boost::shared_ptr<ARDOUR::AudioRegion>);

	~AudioRegionView ();

	void init (bool wait_for_data);

	boost::shared_ptr<ARDOUR::AudioRegion> audio_region() const;

	void create_waves ();
	void delete_waves ();

	void set_height (double);
	void set_samples_per_pixel (double);

	void set_amplitude_above_axis (gdouble spp);

	void temporarily_hide_envelope (); ///< Dangerous!
	void unhide_envelope ();           ///< Dangerous!

	void update_envelope_visibility ();

	void add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *event, bool with_guard_points);
	void remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent *event);

	boost::shared_ptr<AudioRegionGainLine> get_gain_line() const { return gain_line; }

	void region_changed (const PBD::PropertyChange&);
	void envelope_active_changed ();

	GhostRegion* add_ghost (TimeAxisView&);

	void reset_fade_in_shape_width (boost::shared_ptr<ARDOUR::AudioRegion> ar, samplecnt_t, bool drag_active = false);
	void reset_fade_out_shape_width (boost::shared_ptr<ARDOUR::AudioRegion> ar, samplecnt_t, bool drag_active = false);

	samplepos_t get_fade_in_shape_width ();
	samplepos_t get_fade_out_shape_width ();

	void set_fade_visibility (bool);
	void update_coverage_frame (LayerDisplay);

	void update_transient(float old_pos, float new_pos);
	void remove_transient(float pos);

	void show_region_editor ();

	virtual void entered ();
	virtual void exited ();

	void thaw_after_trim ();

	void drag_start ();
	void drag_end ();

	void redraw_start_xfade_to (boost::shared_ptr<ARDOUR::AudioRegion>, samplecnt_t, ArdourCanvas::Points&, double, double);
	void redraw_end_xfade_to (boost::shared_ptr<ARDOUR::AudioRegion>, samplecnt_t, ArdourCanvas::Points&, double, double, double);
	void redraw_start_xfade ();
	void redraw_end_xfade ();

	void hide_xfades ();
	void hide_start_xfade ();
	void hide_end_xfade ();
	void show_xfades ();
	void show_start_xfade ();
	void show_end_xfade ();

	bool start_xfade_visible () const {
		return _start_xfade_visible;
	}

	bool end_xfade_visible () const {
		return _end_xfade_visible;
	}

protected:

	/* this constructor allows derived types
	 * to specify their visibility requirements
	 * to the TimeAxisViewItem parent class
	 */

	enum Flags {
		WaveformVisible = 0x4,
		WaveformRectified = 0x8,
		WaveformLogScaled = 0x10,
	};

	std::vector<ArdourWaveView::WaveView *> waves;
	std::vector<ArdourWaveView::WaveView *> tmp_waves; ///< see \ref create_waves()

	std::list<std::pair<samplepos_t, ArdourCanvas::Line*> > feature_lines;

	ArdourCanvas::Polygon*          sync_mark; ///< polgyon for sync position
	ArdourCanvas::Rectangle*        fade_in_handle; ///< fade in handle, or 0
	ArdourCanvas::Rectangle*        fade_out_handle; ///< fade out handle, or 0
	ArdourCanvas::Rectangle*        fade_in_trim_handle; ///< fade in trim handle, or 0
	ArdourCanvas::Rectangle*        fade_out_trim_handle; ///< fade out trim handle, or 0
	ArdourCanvas::Rectangle*        pending_peak_data;

	static Cairo::RefPtr<Cairo::Pattern> pending_peak_pattern;

	ArdourCanvas::XFadeCurve* start_xfade_curve;
	ArdourCanvas::Rectangle*  start_xfade_rect;
	bool _start_xfade_visible;

	ArdourCanvas::XFadeCurve* end_xfade_curve;
	ArdourCanvas::Rectangle*  end_xfade_rect;
	bool _end_xfade_visible;

	boost::shared_ptr<AudioRegionGainLine> gain_line;

	double _amplitude_above_axis;

	void reset_fade_shapes ();
	void reset_fade_in_shape ();
	void reset_fade_out_shape ();
	void fade_in_changed ();
	void fade_out_changed ();
	void fade_in_active_changed ();
	void fade_out_active_changed ();

	void region_resized (const PBD::PropertyChange&);
	void region_muted ();
	void region_scale_amplitude_changed ();
	void region_renamed ();

	void create_one_wave (uint32_t, bool);
	void peaks_ready_handler (uint32_t);

	void set_colors ();
	void set_waveform_colors ();
	void reset_width_dependent_items (double pixel_width);
	void set_frame_color ();

	void color_handler ();

	void transients_changed();

	AutomationLine::VisibleAspects automation_line_visibility () const;

private:
	void setup_fade_handle_positions ();

	void parameter_changed (std::string const &);
	void setup_waveform_visibility ();
	void set_some_waveform_colors (std::vector<ArdourWaveView::WaveView*>& waves_to_color);

	/** A ScopedConnection for each PeaksReady callback (one per channel).  Each member
	 *  may be 0 if no connection exists.
	 */
	std::vector<PBD::ScopedConnection*> _data_ready_connections;

	/** RegionViews that we hid the xfades for at the start of the current drag;
	 *  first list is for start xfades, second list is for end xfades.
	 */
	std::pair<std::list<AudioRegionView*>, std::list<AudioRegionView*> > _hidden_xfades;

	bool trim_fade_in_drag_active;
	bool trim_fade_out_drag_active;
};

#endif /* __gtk_ardour_audio_region_view_h__ */