2 Copyright (C) 2001-2004 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.
21 #ifndef __gtk_ardour_region_view_h__
22 #define __gtk_ardour_region_view_h__
26 #include <libgnomecanvasmm/libgnomecanvasmm.h>
27 #include <libgnomecanvasmm/polygon.h>
28 #include <sigc++/signal.h>
29 #include <ardour/region.h>
31 #include "time_axis_view_item.h"
32 #include "automation_line.h"
34 #include "canvas-waveview.h"
41 class AudioTimeAxisView;
42 class AudioRegionGainLine;
43 class AudioRegionEditor;
45 class AutomationTimeAxisView;
47 class AudioRegionView : public TimeAxisViewItem
50 AudioRegionView (Gnome::Canvas::Group *,
53 double initial_samples_per_unit,
54 double amplitude_above_axis,
55 Gdk::Color& base_color,
59 ARDOUR::AudioRegion& region; // ok, let 'em have it
60 bool is_valid() const { return valid; }
61 void set_valid (bool yn) { valid = yn; }
63 std::string get_item_name();
64 void set_height (double);
65 void set_samples_per_unit (double);
66 bool set_duration (jack_nframes_t, void*);
68 void set_amplitude_above_axis (gdouble spp);
70 void move (double xdelta, double ydelta);
75 void lower_to_bottom ();
77 bool set_position(jack_nframes_t pos, void* src, double* delta = 0);
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 (WaveformShape);
86 bool waveform_rectified() const { return _flags & WaveformRectified; }
87 bool waveform_visible() const { return _flags & WaveformVisible; }
88 bool envelope_visible() const { return _flags & EnvelopeVisible; }
90 void show_region_editor ();
91 void hide_region_editor();
93 void add_gain_point_event (Gnome::Canvas::Item *item, GdkEvent *event);
94 void remove_gain_point_event (Gnome::Canvas::Item *item, GdkEvent *event);
96 AudioRegionGainLine* get_gain_line() const { return gain_line; }
98 void region_changed (ARDOUR::Change);
99 void envelope_active_changed ();
101 static sigc::signal<void,AudioRegionView*> AudioRegionViewGoingAway;
102 sigc::signal<void> GoingAway;
104 GhostRegion* add_ghost (AutomationTimeAxisView&);
105 void remove_ghost (GhostRegion*);
107 void reset_fade_in_shape_width (jack_nframes_t);
108 void reset_fade_out_shape_width (jack_nframes_t);
109 void set_fade_in_active (bool);
110 void set_fade_out_active (bool);
112 uint32_t get_fill_color ();
114 virtual void entered ();
115 virtual void exited ();
119 EnvelopeVisible = 0x1,
120 WaveformVisible = 0x4,
121 WaveformRectified = 0x8
124 vector<GnomeCanvasItem *> waves; /* waveviews */
125 vector<GnomeCanvasItem *> tmp_waves; /* see ::create_waves()*/
126 Gnome::Canvas::Polygon* sync_mark; /* polgyon for sync position */
127 Gnome::Canvas::Text* no_wave_msg; /* text */
128 Gnome::Canvas::Line* zero_line; /* simpleline */
129 Gnome::Canvas::Polygon* fade_in_shape; /* polygon */
130 Gnome::Canvas::Polygon* fade_out_shape; /* polygon */
131 Gnome::Canvas::SimpleRect* fade_in_handle; /* simplerect */
132 Gnome::Canvas::SimpleRect* fade_out_handle; /* simplerect */
134 AudioRegionGainLine* gain_line;
135 AudioRegionEditor *editor;
137 vector<ControlPoint *> control_points;
138 double _amplitude_above_axis;
139 double current_visible_sync_position;
143 bool valid; /* see StreamView::redisplay_diskstream() */
149 void reset_fade_shapes ();
150 void reset_fade_in_shape ();
151 void reset_fade_out_shape ();
152 void fade_in_changed ();
153 void fade_out_changed ();
154 void fade_in_active_changed ();
155 void fade_out_active_changed ();
157 void region_resized (ARDOUR::Change);
158 void region_moved (void *);
159 void region_muted ();
160 void region_locked ();
161 void region_opacity ();
162 void region_layered ();
163 void region_renamed ();
164 void region_sync_changed ();
165 void region_scale_amplitude_changed ();
167 static gint _lock_toggle (Gnome::Canvas::Item*, GdkEvent*, void*);
170 void create_waves ();
171 void create_one_wave (uint32_t, bool);
172 void manage_zero_line ();
173 void peaks_ready_handler (uint32_t);
174 void reset_name (gdouble width);
175 void set_flags (XMLNode *);
179 void compute_colors (Gdk::Color&);
180 void set_frame_color ();
181 void reset_width_dependent_items (double pixel_width);
182 void set_waveview_data_src();
184 vector<GnomeCanvasWaveViewCache*> wave_caches;
185 vector<GhostRegion*> ghosts;
188 #endif /* __gtk_ardour_region_view_h__ */