adjusting region fade in/out lengths makes the fade in/out active; new font sizes...
[ardour.git] / gtk2_ardour / editor.h
1 /*
2     Copyright (C) 2000-2003 Paul Davis 
3
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.
8
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.
13
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.
17
18 */
19
20 #ifndef __ardour_editor_h__
21 #define __ardour_editor_h__
22
23 #include <list>
24 #include <map>
25 #include <set>
26 #include <string>
27 #include <sys/time.h>
28 #include <glibmm/ustring.h>
29
30 #include <boost/optional.hpp>
31
32 #include <libgnomecanvasmm/canvas.h>
33 #include <libgnomecanvasmm/group.h>
34 #include <libgnomecanvasmm/line.h>
35 #include <libgnomecanvasmm/pixbuf.h>
36
37 #include <cmath>
38
39 #include <gtkmm/layout.h>
40 #include <gtkmm/comboboxtext.h>
41
42 #include <gtkmm2ext/selector.h>
43 #include <gtkmm2ext/click_box.h>
44 #include <gtkmm2ext/dndtreeview.h>
45
46 #include <pbd/stateful.h>
47 #include <ardour/session.h>
48 #include <ardour/tempo.h>
49 #include <ardour/stretch.h>
50 #include <ardour/location.h>
51 #include <ardour/audioregion.h>
52
53 #include "audio_clock.h"
54 #include "gtk-custom-ruler.h"
55 #include "ardour_dialog.h"
56 #include "public_editor.h"
57 #include "editing.h"
58 #include "enums.h"
59 #include "editor_items.h"
60 #include "region_selection.h"
61 #include "canvas.h"
62 #include "draginfo.h"
63
64 namespace Gtkmm2ext {
65         class TearOff;
66 }
67
68 namespace ARDOUR {
69         class AudioDiskstream;
70         class RouteGroup;
71         class Playlist;
72         class AudioPlaylist;
73         class Region;
74         class Location;
75         class TempoSection;
76         class NamedSelection;
77         class Session;
78         class AudioFilter;
79         class Crossfade;
80 }
81
82 namespace LADSPA {
83         class Plugin;
84 }
85
86 class TimeAxisView;
87 class RouteTimeAxisView;
88 class AudioTimeAxisView;
89 class AutomationTimeAxisView;
90 class AudioRegionView;
91 class CrossfadeView;
92 class PluginSelector;
93 class PlaylistSelector;
94 class Marker;
95 class GroupedButtons;
96 class AutomationLine;
97 class UIExportSpecification;
98 class ExportDialog;
99 class Selection;
100 class TimeSelection;
101 class TrackSelection;
102 class AutomationSelection;
103 class MixerStrip;
104 class StreamView;
105 class AudioStreamView;
106 class ControlPoint;
107 class SoundFileOmega;
108 class RhythmFerret;
109 #ifdef FFT_ANALYSIS
110 class AnalysisWindow;
111 #endif
112
113 /* <CMT Additions> */
114 class ImageFrameView;
115 class ImageFrameTimeAxisView;
116 class ImageFrameTimeAxis;
117 class MarkerTimeAxis ;
118 class MarkerView ;
119 class ImageFrameSocketHandler ;
120 class TimeAxisViewItem ;
121 /* </CMT Additions> */
122
123
124 class Editor : public PublicEditor
125 {
126   public:
127         Editor ();
128         ~Editor ();
129
130         void             connect_to_session (ARDOUR::Session *);
131         ARDOUR::Session* current_session() const { return session; }
132
133         nframes_t leftmost_position() const { return leftmost_frame; }
134         nframes_t current_page_frames() const {
135                 return (nframes_t) floor (canvas_width * frames_per_unit);
136         }
137
138         void cycle_snap_mode ();
139         void cycle_snap_choice ();
140         void set_snap_to (Editing::SnapType);
141         void set_snap_mode (Editing::SnapMode);
142         void set_snap_threshold (double pixel_distance) {snap_threshold = pixel_distance;}
143
144         void undo (uint32_t n = 1);
145         void redo (uint32_t n = 1);
146
147         XMLNode& get_state ();
148         int set_state (const XMLNode& );
149
150         void set_mouse_mode (Editing::MouseMode, bool force=true);
151         void step_mouse_mode (bool next);
152         Editing::MouseMode current_mouse_mode () { return mouse_mode; }
153
154         void add_imageframe_time_axis(const std::string & track_name, void*) ;
155         void add_imageframe_marker_time_axis(const std::string & track_name, TimeAxisView* marked_track, void*) ;
156         void connect_to_image_compositor() ;
157         void scroll_timeaxis_to_imageframe_item(const TimeAxisViewItem* item) ;
158         TimeAxisView* get_named_time_axis(const std::string & name) ;
159
160         void consider_auditioning (boost::shared_ptr<ARDOUR::Region>);
161         void hide_a_region (boost::shared_ptr<ARDOUR::Region>);
162         void remove_a_region (boost::shared_ptr<ARDOUR::Region>);
163
164 #ifdef USE_RUBBERBAND
165         std::vector<std::string> rb_opt_strings;
166 #endif
167
168         /* option editor-access */
169
170         void set_show_waveforms (bool yn);
171         bool show_waveforms() const { return _show_waveforms; }
172
173         void set_show_waveforms_recording (bool yn);
174         bool show_waveforms_recording() const { return _show_waveforms_recording; }
175         
176         /* things that need to be public to be used in the main menubar */
177
178         void new_region_from_selection ();
179         void separate_regions_between (const TimeSelection&);
180         void separate_region_from_selection ();
181         void separate_regions_using_location (ARDOUR::Location&);
182         void toggle_playback (bool with_abort);
183         void transition_to_rolling (bool forward);
184
185         /* undo related */
186
187         nframes_t unit_to_frame (double unit) const {
188                 return (nframes_t) rint (unit * frames_per_unit);
189         }
190         
191         double frame_to_unit (nframes_t frame) const {
192                 return rint ((double) frame / (double) frames_per_unit);
193         }
194
195         double frame_to_unit (double frame) const {
196                 return rint (frame / frames_per_unit);
197         }
198
199         /* NOTE: these functions assume that the "pixel" coordinate is
200            the result of using the world->canvas affine transform on a
201            world coordinate. These coordinates already take into
202            account any scrolling carried out by adjusting the
203            xscroll_adjustment.  
204         */
205
206         nframes64_t pixel_to_frame (double pixel) const {
207                 
208                 /* pixel can be less than zero when motion events
209                    are processed. since we've already run the world->canvas
210                    affine, that means that the location *really* is "off
211                    to the right" and thus really is "before the start".
212                 */
213
214                 if (pixel >= 0) {
215                         return (nframes_t) rint (pixel * frames_per_unit * GNOME_CANVAS(track_canvas.gobj())->pixels_per_unit);
216                 } else {
217                         return 0;
218                 }
219         }
220
221         gulong frame_to_pixel (nframes64_t frame) const {
222                 return (gulong) rint ((frame / (frames_per_unit *  GNOME_CANVAS(track_canvas.gobj())->pixels_per_unit)));
223         }
224
225         void flush_canvas ();
226
227         /* selection */
228
229         Selection& get_selection() const { return *selection; }
230         Selection& get_cut_buffer() const { return *cut_buffer; }
231
232         bool extend_selection_to_track (TimeAxisView&);
233
234         void play_selection ();
235         void select_all_in_track (Selection::Operation op);
236         void select_all (Selection::Operation op);
237         void invert_selection_in_track ();
238         void invert_selection ();
239         void deselect_all ();
240
241         /* tempo */
242
243         void set_show_measures (bool yn);
244         bool show_measures () const { return _show_measures; }
245         bool initial_ruler_update_required;
246
247 #ifdef FFT_ANALYSIS
248         /* analysis window */
249         void analyze_region_selection();
250         void analyze_range_selection();
251 #endif
252
253         /* export */
254
255         /* these initiate export ... */
256         
257         void export_session();
258         void export_selection();
259
260         void add_toplevel_controls (Gtk::Container&);
261         Gtk::HBox& get_status_bar_packer()  { return status_bar_hpacker; }
262
263         void      set_zoom_focus (Editing::ZoomFocus);
264         Editing::ZoomFocus get_zoom_focus () const { return zoom_focus; }
265         double   get_current_zoom () const { return frames_per_unit; }
266
267         void temporal_zoom_step (bool coarser);
268
269         /* stuff that AudioTimeAxisView and related classes use */
270
271         PlaylistSelector& playlist_selector() const;
272         void route_name_changed (TimeAxisView *);
273         void clear_playlist (boost::shared_ptr<ARDOUR::Playlist>);
274
275         void new_playlists (TimeAxisView*);
276         void copy_playlists (TimeAxisView*);
277         void clear_playlists (TimeAxisView*);
278
279         TrackViewList* get_valid_views (TimeAxisView*, ARDOUR::RouteGroup* grp = 0);
280
281         Width editor_mixer_strip_width;
282         void maybe_add_mixer_strip_width (XMLNode&);
283         void show_editor_mixer (bool yn);
284         void set_selected_mixer_strip (TimeAxisView&);
285         void hide_track_in_display (TimeAxisView& tv);
286         void show_track_in_display (TimeAxisView& tv);
287
288         /* nudge is initiated by transport controls owned by ARDOUR_UI */
289
290         void nudge_forward (bool next, bool force_playhead);
291         void nudge_backward (bool next, bool force_playhead);
292
293         /* nudge initiated from context menu */
294
295         void nudge_forward_capture_offset ();
296         void nudge_backward_capture_offset ();
297
298         /* playhead/screen stuff */
299         
300         void set_follow_playhead (bool yn);
301         void toggle_follow_playhead ();
302         bool follow_playhead() const { return _follow_playhead; }
303         bool dragging_playhead () const { return _dragging_playhead; }
304
305         void toggle_waveform_visibility ();
306         void toggle_waveforms_while_recording ();
307         void toggle_measure_visibility ();
308         void toggle_logo_visibility ();
309
310         /* SMPTE timecode & video sync */
311
312         void smpte_fps_chosen (ARDOUR::SmpteFormat format);
313         void video_pullup_chosen (ARDOUR::Session::PullupFormat pullup);
314         void subframes_per_frame_chosen (uint32_t);
315
316         void update_smpte_mode();
317         void update_video_pullup();
318         void update_subframes_per_frame ();
319         /* xfades */
320
321         void toggle_auto_xfade ();
322         void toggle_xfades_active ();
323         void toggle_xfade_visibility ();
324         bool xfade_visibility() const { return _xfade_visibility; }
325         void update_xfade_visibility ();
326         void update_crossfade_model ();
327         void set_crossfade_model (ARDOUR::CrossfadeModel);
328
329         /* layers */
330         void set_layer_model (ARDOUR::LayerModel);
331         void update_layering_model ();
332         
333         void toggle_link_region_and_track_selection ();
334
335         /* redirect shared ops menu. caller must free returned menu */
336
337         Gtk::Menu* redirect_menu ();
338
339         /* floating windows/transient */
340
341         void ensure_float (Gtk::Window&);
342
343         void show_window ();
344
345         void scroll_tracks_down_line ();
346         void scroll_tracks_up_line ();
347
348         bool new_regionviews_display_gain () { return _new_regionviews_show_envelope; }
349         void prepare_for_cleanup ();
350
351         void maximise_editing_space();
352         void restore_editing_space();
353
354         void reset_x_origin (nframes_t);
355         void reset_zoom (double);
356         void reposition_and_zoom (nframes_t, double);
357
358         nframes64_t get_preferred_edit_position (bool ignore_playhead = false);
359
360         bool update_mouse_speed ();
361         bool decelerate_mouse_speed ();
362
363         void toggle_meter_updating();
364
365         void show_rhythm_ferret();
366
367   protected:
368         void map_transport_state ();
369         void map_position_change (nframes_t);
370
371         void on_realize();
372
373   private:
374         
375         ARDOUR::Session     *session;
376         bool                 constructed;
377   
378         // to keep track of the playhead position for control_scroll
379         boost::optional<nframes_t> _control_scroll_target;
380
381         PlaylistSelector* _playlist_selector;
382
383         struct VisualState {
384             double    frames_per_unit;
385             nframes_t leftmost_frame;
386             Editing::ZoomFocus zoom_focus;
387         };
388         
389         VisualState last_visual_state;
390
391         nframes_t   leftmost_frame;
392         double      frames_per_unit;
393         Editing::ZoomFocus zoom_focus;
394
395         void use_visual_state (const VisualState&);
396         void set_frames_per_unit (double);
397         void swap_visual_state ();
398         void post_zoom ();
399
400         Editing::MouseMode mouse_mode;
401
402         int  post_maximal_editor_width;
403         int  post_maximal_pane_position;
404         int  pre_maximal_pane_position;
405         int  pre_maximal_editor_width;
406         void pane_allocation_handler (Gtk::Allocation&, Gtk::Paned*);
407
408         Gtk::Notebook the_notebook;
409         Gtk::HPaned   edit_pane;
410
411         Gtk::EventBox meter_base;
412         Gtk::HBox     meter_box;
413         Gtk::EventBox marker_base;
414         Gtk::HBox     marker_box;
415         Gtk::VBox     scrollers_rulers_markers_box;
416
417         void location_changed (ARDOUR::Location *);
418         void location_flags_changed (ARDOUR::Location *, void *);
419         void refresh_location_display ();
420         void refresh_location_display_s (ARDOUR::Change);
421         void refresh_location_display_internal (ARDOUR::Locations::LocationList&);
422         void add_new_location (ARDOUR::Location *);
423         void location_gone (ARDOUR::Location *);
424         void remove_marker (ArdourCanvas::Item&, GdkEvent*);
425         gint really_remove_marker (ARDOUR::Location* loc);
426         void goto_nth_marker (int nth);
427
428         uint32_t location_marker_color;
429         uint32_t location_range_color;
430         uint32_t location_loop_color;
431         uint32_t location_punch_color;
432         uint32_t location_cd_marker_color;
433
434         struct LocationMarkers {
435             Marker* start;
436             Marker* end;
437             bool    valid;
438
439             LocationMarkers () : start(0), end(0), valid (true) {}
440             
441             ~LocationMarkers ();
442
443             void hide();
444             void show ();
445             void set_name (const string&);
446             void set_position (nframes_t start, nframes_t end = 0);
447             void set_color_rgba (uint32_t);
448         };
449
450         LocationMarkers  *find_location_markers (ARDOUR::Location *) const;
451         ARDOUR::Location* find_location_from_marker (Marker *, bool& is_start) const;
452         Marker* entered_marker;
453
454         typedef std::map<ARDOUR::Location*,LocationMarkers *> LocationMarkerMap;
455         LocationMarkerMap location_markers;
456
457         void hide_marker (ArdourCanvas::Item*, GdkEvent*);
458         void clear_marker_display ();
459         void mouse_add_new_marker (nframes_t where, bool is_cd=false);
460         void update_cd_marker_display ();
461         void ensure_cd_marker_updated (LocationMarkers * lam, ARDOUR::Location * location);
462
463         TimeAxisView*      clicked_trackview;
464         AudioTimeAxisView* clicked_audio_trackview;
465         RegionView*        clicked_regionview;
466         RegionSelection    latest_regionviews;
467         uint32_t           clicked_selection;
468         CrossfadeView*     clicked_crossfadeview;
469         ControlPoint*      clicked_control_point;
470
471         void sort_track_selection (TrackSelection* sel = 0);
472
473         void get_relevant_audio_tracks (std::set<AudioTimeAxisView*>& relevant_tracks);
474         void get_equivalent_regions (RegionView* rv, std::vector<RegionView*>&);
475         void mapover_audio_tracks (sigc::slot<void,AudioTimeAxisView&,uint32_t> sl, TimeAxisView*);
476
477         /* functions to be passed to mapover_audio_tracks(), possibly with sigc::bind()-supplied arguments */
478
479         void mapped_get_equivalent_regions (RouteTimeAxisView&, uint32_t, RegionView*, vector<RegionView*>*);
480         void mapped_use_new_playlist (AudioTimeAxisView&, uint32_t);
481         void mapped_use_copy_playlist (AudioTimeAxisView&, uint32_t);
482         void mapped_clear_playlist (AudioTimeAxisView&, uint32_t);
483
484         /* end */
485
486         void button_selection (ArdourCanvas::Item* item, GdkEvent* event, ItemType item_type);
487         bool button_release_can_deselect;
488
489         void catch_vanishing_regionview (RegionView *);
490
491         void set_selected_track (TimeAxisView&, Selection::Operation op = Selection::Set, bool no_remove=false);
492         void select_all_tracks ();
493
494         bool set_selected_control_point_from_click (Selection::Operation op = Selection::Set, bool no_remove=false);
495         void set_selected_track_from_click (bool press, Selection::Operation op = Selection::Set, bool no_remove=false);
496         void set_selected_track_as_side_effect (bool force = false);
497         bool set_selected_regionview_from_click (bool press, Selection::Operation op = Selection::Set, bool no_track_remove=false);
498
499         void set_selected_regionview_from_region_list (boost::shared_ptr<ARDOUR::Region> region, Selection::Operation op = Selection::Set);
500         bool set_selected_regionview_from_map_event (GdkEventAny*, StreamView*, boost::weak_ptr<ARDOUR::Region>);
501         void collect_new_region_view (RegionView *);
502
503         Gtk::Menu track_context_menu;
504         Gtk::Menu track_region_context_menu;
505         Gtk::Menu track_selection_context_menu;
506         Gtk::Menu track_crossfade_context_menu;
507
508         Gtk::MenuItem* region_edit_menu_split_item;
509         Gtk::MenuItem* region_edit_menu_split_multichannel_item;
510         Gtk::Menu * track_region_edit_playlist_menu;
511         Gtk::Menu * track_edit_playlist_submenu;
512         Gtk::Menu * track_selection_edit_playlist_submenu;
513         
514         void popup_track_context_menu (int, int, ItemType, bool, nframes_t);
515         Gtk::Menu* build_track_context_menu (nframes_t);
516         Gtk::Menu* build_track_bus_context_menu (nframes_t);
517         Gtk::Menu* build_track_region_context_menu (nframes_t frame);
518         Gtk::Menu* build_track_crossfade_context_menu (nframes_t);
519         Gtk::Menu* build_track_selection_context_menu (nframes_t);
520         void add_dstream_context_items (Gtk::Menu_Helpers::MenuList&);
521         void add_bus_context_items (Gtk::Menu_Helpers::MenuList&);
522         void add_region_context_items (AudioStreamView*, boost::shared_ptr<ARDOUR::Region>, Gtk::Menu_Helpers::MenuList&);
523         void add_crossfade_context_items (AudioStreamView*, boost::shared_ptr<ARDOUR::Crossfade>, Gtk::Menu_Helpers::MenuList&, bool many);
524         void add_selection_context_items (Gtk::Menu_Helpers::MenuList&);
525
526         void handle_new_route (ARDOUR::Session::RouteList&);
527         void remove_route (TimeAxisView *);
528         bool route_removal;
529
530         Gtk::HBox           global_hpacker;
531         Gtk::VBox           global_vpacker;
532         Gtk::VBox           vpacker;
533
534         Gdk::Cursor*          current_canvas_cursor;
535
536         ArdourCanvas::CanvasAA track_canvas;
537         ArdourCanvas::CanvasAA time_canvas;
538
539         ArdourCanvas::Text* first_action_message;
540         ArdourCanvas::Text* verbose_canvas_cursor;
541         bool                 verbose_cursor_visible;
542
543         void parameter_changed (const char *);
544         
545         bool track_canvas_motion (GdkEvent*);
546
547         void set_verbose_canvas_cursor (const string &, double x, double y);
548         void set_verbose_canvas_cursor_text (const string &);
549         void show_verbose_canvas_cursor();
550         void hide_verbose_canvas_cursor();
551
552         bool verbose_cursor_on; // so far unused
553
554         Gtk::EventBox      time_canvas_event_box;
555         Gtk::EventBox      track_canvas_event_box;
556         Gtk::EventBox      time_button_event_box;
557         Gtk::Frame         time_button_frame;
558
559         ArdourCanvas::Pixbuf*     logo_item;
560         ArdourCanvas::Group*      minsec_group;
561         ArdourCanvas::Group*      bbt_group;
562         ArdourCanvas::Group*      smpte_group;
563         ArdourCanvas::Group*      frame_group;
564         ArdourCanvas::Group*      tempo_group;
565         ArdourCanvas::Group*      meter_group;
566         ArdourCanvas::Group*      marker_group;
567         ArdourCanvas::Group*      range_marker_group;
568         ArdourCanvas::Group*      transport_marker_group;
569         ArdourCanvas::Group*      cd_marker_group;
570         
571         enum {
572                 ruler_metric_smpte = 0,
573                 ruler_metric_bbt = 1,
574                 ruler_metric_frames = 2,
575                 ruler_metric_minsec = 3,
576
577                 ruler_time_tempo = 4,
578                 ruler_time_meter = 5,
579                 ruler_time_marker = 6,
580                 ruler_time_range_marker = 7,
581                 ruler_time_transport_marker = 8,
582                 ruler_time_cd_marker = 9,
583         };
584
585         static GtkCustomMetric ruler_metrics[4];
586         bool                   ruler_shown[10];
587         bool                   no_ruler_shown_update;
588         
589         gint ruler_button_press (GdkEventButton*);
590         gint ruler_button_release (GdkEventButton*);
591         gint ruler_mouse_motion (GdkEventMotion*);
592         bool ruler_scroll (GdkEventScroll* event);
593
594         gint ruler_pressed_button;
595         Gtk::Widget * ruler_grabbed_widget;
596         
597         void initialize_rulers ();
598         void update_just_smpte ();
599         void update_fixed_rulers ();
600         void update_tempo_based_rulers (); 
601         void popup_ruler_menu (nframes_t where = 0, ItemType type = RegionItem);
602         void update_ruler_visibility ();
603         void ruler_toggled (int);
604         gint ruler_label_button_release (GdkEventButton*);
605         void store_ruler_visibility ();
606         void restore_ruler_visibility ();
607         
608         static gint _metric_get_smpte (GtkCustomRulerMark **, gdouble, gdouble, gint);
609         static gint _metric_get_bbt (GtkCustomRulerMark **, gdouble, gdouble, gint);
610         static gint _metric_get_frames (GtkCustomRulerMark **, gdouble, gdouble, gint);
611         static gint _metric_get_minsec (GtkCustomRulerMark **, gdouble, gdouble, gint);
612         
613         gint metric_get_smpte (GtkCustomRulerMark **, gdouble, gdouble, gint);
614         gint metric_get_bbt (GtkCustomRulerMark **, gdouble, gdouble, gint);
615         gint metric_get_frames (GtkCustomRulerMark **, gdouble, gdouble, gint);
616         gint metric_get_minsec (GtkCustomRulerMark **, gdouble, gdouble, gint);
617
618         Gtk::Widget        *_ruler_separator;
619         GtkWidget          *_smpte_ruler;
620         GtkWidget          *_bbt_ruler;
621         GtkWidget          *_frames_ruler;
622         GtkWidget          *_minsec_ruler;
623         Gtk::Widget        *smpte_ruler;
624         Gtk::Widget        *bbt_ruler;
625         Gtk::Widget        *frames_ruler;
626         Gtk::Widget        *minsec_ruler;
627         static Editor      *ruler_editor;
628
629         static const double timebar_height;
630         guint32 visible_timebars;
631         Gtk::Menu          *editor_ruler_menu;
632         
633         ArdourCanvas::SimpleRect* tempo_bar;
634         ArdourCanvas::SimpleRect* meter_bar;
635         ArdourCanvas::SimpleRect* marker_bar;
636         ArdourCanvas::SimpleRect* range_marker_bar;
637         ArdourCanvas::SimpleRect* transport_marker_bar;
638         ArdourCanvas::SimpleRect* cd_marker_bar;
639
640         
641         ArdourCanvas::SimpleLine* tempo_line;
642         ArdourCanvas::SimpleLine* meter_line;
643         ArdourCanvas::SimpleLine* marker_line;
644         ArdourCanvas::SimpleLine* range_marker_line;
645         ArdourCanvas::SimpleLine* transport_marker_line;
646         ArdourCanvas::SimpleLine* cd_marker_line;
647
648         Gtk::Label  minsec_label;
649         Gtk::Label  bbt_label;
650         Gtk::Label  smpte_label;
651         Gtk::Label  frame_label;
652         Gtk::Label  tempo_label;
653         Gtk::Label  meter_label;
654         Gtk::Label  mark_label;
655         Gtk::Label  range_mark_label;
656         Gtk::Label  transport_mark_label;
657         Gtk::Label  cd_mark_label;
658         
659
660         Gtk::VBox          time_button_vbox;
661         Gtk::HBox          time_button_hbox;
662
663         struct Cursor {
664             Editor&               editor;
665             ArdourCanvas::Points  points;
666             ArdourCanvas::Line    canvas_item;
667             nframes_t        current_frame;
668             double                length;
669
670             Cursor (Editor&, bool (Editor::*)(GdkEvent*,ArdourCanvas::Item*));
671             ~Cursor ();
672
673             void set_position (nframes_t);
674             void set_length (double units);
675             void set_y_axis (double position);
676         };
677
678         friend struct Cursor; /* it needs access to several private
679                                  fields. XXX fix me.
680                               */
681
682         Cursor* playhead_cursor;
683         ArdourCanvas::Group* cursor_group;
684
685         void    cursor_to_region_boundary (Cursor*, int32_t dir);
686         void    cursor_to_next_region_boundary (Cursor*);
687         void    cursor_to_previous_region_boundary (Cursor*);
688         void    cursor_to_next_region_point (Cursor*, ARDOUR::RegionPoint);
689         void    cursor_to_previous_region_point (Cursor*, ARDOUR::RegionPoint);
690         void    cursor_to_region_point (Cursor*, ARDOUR::RegionPoint, int32_t dir);
691         void    cursor_to_selection_start (Cursor *);
692         void    cursor_to_selection_end   (Cursor *);
693
694         void    selected_marker_to_region_boundary (int32_t dir);
695         void    selected_marker_to_next_region_boundary ();
696         void    selected_marker_to_previous_region_boundary ();
697         void    selected_marker_to_next_region_point (ARDOUR::RegionPoint);
698         void    selected_marker_to_previous_region_point (ARDOUR::RegionPoint);
699         void    selected_marker_to_region_point (ARDOUR::RegionPoint, int32_t dir);
700         void    selected_marker_to_selection_start ();
701         void    selected_marker_to_selection_end   ();
702
703         void    select_all_selectables_using_cursor (Cursor *, bool);
704         void    select_all_selectables_using_edit (bool);
705         void    select_all_selectables_between (bool within);
706         void    select_range_between ();
707
708         boost::shared_ptr<ARDOUR::Region> find_next_region (nframes_t, ARDOUR::RegionPoint, int32_t dir, TrackViewList&, TimeAxisView ** = 0);
709         nframes64_t find_next_region_boundary (nframes64_t, int32_t dir, const TrackViewList&);
710
711         vector<nframes_t> region_boundary_cache;
712         void build_region_boundary_cache ();
713
714         Gtk::VBox           trackview_vpacker;
715
716         Gtk::HBox           top_hbox;
717         Gtk::HBox           bottom_hbox;
718         
719         Gtk::Table          edit_packer;
720         Gtk::VScrollbar     edit_vscrollbar;
721
722         Gtk::Adjustment     vertical_adjustment;
723         Gtk::Adjustment     horizontal_adjustment;
724
725         Gtk::Layout         controls_layout;
726         bool control_layout_scroll (GdkEventScroll* ev);
727         void controls_layout_size_request (Gtk::Requisition*);
728
729         Gtk::HScrollbar     edit_hscrollbar;
730         bool                _dragging_hscrollbar;
731
732         void reset_hscrollbar_stepping ();
733         
734         bool hscrollbar_button_press (GdkEventButton*);
735         bool hscrollbar_button_release (GdkEventButton*);
736         void hscrollbar_allocate (Gtk::Allocation &alloc);
737
738         double canvas_width;
739         double canvas_height;
740         double full_canvas_height;
741         nframes_t last_canvas_frame;
742
743         bool track_canvas_map_handler (GdkEventAny*);
744         bool time_canvas_map_handler (GdkEventAny*);
745
746         gint edit_controls_button_release (GdkEventButton*);
747         Gtk::Menu *edit_controls_left_menu;
748         Gtk::Menu *edit_controls_right_menu;
749
750         Gtk::VBox           track_canvas_vbox;
751         Gtk::VBox           time_canvas_vbox;
752         Gtk::VBox           edit_controls_vbox;
753         Gtk::HBox           edit_controls_hbox;
754
755         void control_scroll (float);
756         bool deferred_control_scroll (nframes_t);
757         sigc::connection control_scroll_connection;
758
759         void tie_vertical_scrolling ();
760         void canvas_horizontally_scrolled ();
761         void canvas_scroll_to (nframes64_t);
762
763         struct VisualChange {
764             enum Type { 
765                     TimeOrigin = 0x1,
766                     ZoomLevel = 0x2
767             };
768
769             Type pending;
770             nframes_t time_origin;
771             double frames_per_unit;
772
773             int idle_handler_id;
774
775             VisualChange() : pending ((VisualChange::Type) 0), time_origin (0), frames_per_unit (0), idle_handler_id (-1) {}
776         };
777
778
779         VisualChange pending_visual_change;
780
781         static int _idle_visual_changer (void *arg);
782         int idle_visual_changer ();
783
784         void queue_visual_change (nframes_t);
785         void queue_visual_change (double);
786
787         void end_location_changed (ARDOUR::Location*);
788
789         struct RegionListDisplayModelColumns : public Gtk::TreeModel::ColumnRecord {
790             RegionListDisplayModelColumns() {
791                     add (name);
792                     add (region);
793                     add (color_);
794             }
795             Gtk::TreeModelColumn<Glib::ustring> name;
796             Gtk::TreeModelColumn<boost::shared_ptr<ARDOUR::Region> > region;
797             Gtk::TreeModelColumn<Gdk::Color> color_;
798         };
799             
800         RegionListDisplayModelColumns          region_list_columns;
801         Gtkmm2ext::DnDTreeView<boost::shared_ptr<ARDOUR::Region> > region_list_display;
802         
803         Glib::RefPtr<Gtk::TreeStore>           region_list_model;
804         Glib::RefPtr<Gtk::ToggleAction>        toggle_full_region_list_action;
805         Glib::RefPtr<Gtk::ToggleAction>        toggle_show_auto_regions_action;
806
807         void region_list_selection_changed ();
808         bool region_list_selection_filter (const Glib::RefPtr<Gtk::TreeModel>& model, const Gtk::TreeModel::Path& path, bool yn);
809         void region_name_edit (const Glib::ustring&, const Glib::ustring&);
810         void get_regions_corresponding_to (boost::shared_ptr<ARDOUR::Region> region, std::vector<RegionView*>& regions);
811
812         Gtk::Menu          *region_list_menu;
813         Gtk::ScrolledWindow region_list_scroller;
814         Gtk::Frame          region_list_frame;
815
816         bool region_list_display_key_press (GdkEventKey *);
817         bool region_list_display_key_release (GdkEventKey *);
818         bool region_list_display_button_press (GdkEventButton *);
819         bool region_list_display_button_release (GdkEventButton *);
820         void region_list_clear ();
821         void region_list_selection_mapover (sigc::slot<void,boost::shared_ptr<ARDOUR::Region> >);
822         void build_region_list_menu ();
823         void show_region_list_display_context_menu (int button, int time);
824
825         bool show_automatic_regions_in_region_list;
826         Editing::RegionListSortType region_list_sort_type;
827
828         void reset_region_list_sort_direction (bool);
829         void reset_region_list_sort_type (Editing::RegionListSortType);
830
831         void toggle_full_region_list ();
832         void toggle_show_auto_regions ();
833
834         int region_list_sorter (Gtk::TreeModel::iterator, Gtk::TreeModel::iterator);
835
836         /* snapshots */
837
838         Gtk::ScrolledWindow      snapshot_display_scroller;
839         struct SnapshotDisplayModelColumns : public Gtk::TreeModel::ColumnRecord {
840             SnapshotDisplayModelColumns() { 
841                     add (visible_name);
842                     add (real_name);
843             }
844             Gtk::TreeModelColumn<Glib::ustring> visible_name;
845             Gtk::TreeModelColumn<Glib::ustring> real_name;
846         };
847
848         SnapshotDisplayModelColumns snapshot_display_columns;
849         Glib::RefPtr<Gtk::ListStore> snapshot_display_model;
850         Gtk::TreeView snapshot_display;
851         Gtk::Menu snapshot_context_menu;
852
853         bool snapshot_display_button_press (GdkEventButton*);
854         void snapshot_display_selection_changed ();
855         void redisplay_snapshots();
856         void popup_snapshot_context_menu (int, int32_t, Glib::ustring);
857
858         /* named selections */
859
860         struct NamedSelectionDisplayModelColumns : public Gtk::TreeModel::ColumnRecord {
861             NamedSelectionDisplayModelColumns() { 
862                     add (text);
863                     add (selection);
864             }
865             Gtk::TreeModelColumn<Glib::ustring>  text;
866             Gtk::TreeModelColumn<ARDOUR::NamedSelection*>    selection;
867         };
868
869         NamedSelectionDisplayModelColumns named_selection_columns;
870         Glib::RefPtr<Gtk::TreeStore>     named_selection_model;
871
872         Gtkmm2ext::DnDTreeView<ARDOUR::NamedSelection*> named_selection_display;
873         Gtk::ScrolledWindow    named_selection_scroller;
874
875         void create_named_selection ();
876         void paste_named_selection (float times);
877         void remove_selected_named_selections ();
878         void remove_snapshot (Glib::ustring);
879         void rename_snapshot (Glib::ustring);
880
881         void handle_new_named_selection ();
882         void add_named_selection_to_named_selection_display (ARDOUR::NamedSelection&);
883         void redisplay_named_selections ();
884
885         bool named_selection_display_button_release (GdkEventButton *ev);
886         bool named_selection_display_key_release (GdkEventKey *ev);
887         void named_selection_display_selection_changed ();
888
889         /* track views */
890         TrackViewList  track_views;
891         TimeAxisView     *trackview_by_y_position (double ypos);
892
893         static Gdk::Cursor* cross_hair_cursor;
894         static Gdk::Cursor* trimmer_cursor;
895         static Gdk::Cursor* selector_cursor;
896         static Gdk::Cursor* grabber_cursor;
897         static Gdk::Cursor* zoom_cursor;
898         static Gdk::Cursor* time_fx_cursor;
899         static Gdk::Cursor* fader_cursor;
900         static Gdk::Cursor* speaker_cursor;
901         static Gdk::Cursor* wait_cursor;
902         static Gdk::Cursor* timebar_cursor;
903         static Gdk::Cursor* transparent_cursor;
904
905         static void build_cursors ();
906
907         sigc::connection scroll_connection;
908         nframes_t last_update_frame;
909         void center_screen (nframes_t);
910         void center_screen_internal (nframes_t, float);
911         
912         void update_current_screen ();
913         
914         void session_going_away ();
915
916         nframes_t cut_buffer_start;
917         nframes_t cut_buffer_length;
918
919         bool typed_event (ArdourCanvas::Item*, GdkEvent*, ItemType);
920         bool button_press_handler (ArdourCanvas::Item*, GdkEvent*, ItemType);
921         bool button_release_handler (ArdourCanvas::Item*, GdkEvent*, ItemType);
922         bool motion_handler (ArdourCanvas::Item*, GdkEvent*, ItemType, bool from_autoscroll = false);
923         bool enter_handler (ArdourCanvas::Item*, GdkEvent*, ItemType);
924         bool leave_handler (ArdourCanvas::Item*, GdkEvent*, ItemType);
925         
926         /* KEYMAP HANDLING */
927
928         void register_actions ();
929
930         int ensure_cursor (nframes_t* pos);
931
932         void handle_new_audio_region (boost::weak_ptr<ARDOUR::AudioRegion>);
933         void handle_audio_region_removed (boost::weak_ptr<ARDOUR::AudioRegion>);
934         void add_audio_region_to_region_display (boost::shared_ptr<ARDOUR::AudioRegion>);
935         void region_hidden (boost::shared_ptr<ARDOUR::Region>);
936         void redisplay_regions ();
937         void insert_into_tmp_audio_regionlist(boost::shared_ptr<ARDOUR::AudioRegion>);
938
939         list<boost::shared_ptr<ARDOUR::AudioRegion> > tmp_audio_region_list;
940
941         void cut_copy (Editing::CutCopyOp);
942         void cut_copy_points (Editing::CutCopyOp);
943         void cut_copy_regions (Editing::CutCopyOp);
944         void cut_copy_ranges (Editing::CutCopyOp);
945
946         void mouse_paste ();
947         void paste_internal (nframes_t position, float times);
948
949         /* EDITING OPERATIONS */
950         
951         void reset_point_selection ();
952         void toggle_region_mute ();
953         void toggle_region_lock ();
954         void toggle_region_opaque ();
955         void set_region_lock_style (ARDOUR::Region::PositionLockStyle);
956         void raise_region ();
957         void raise_region_to_top ();
958         void lower_region ();
959         void lower_region_to_bottom ();
960         void split_region ();
961         void split_region_at (nframes_t);
962         void split_regions_at (nframes_t, RegionSelection&);
963         void split_region_at_transients ();
964         void split_region_at_points (boost::shared_ptr<ARDOUR::Region>, ARDOUR::AnalysisFeatureList&);
965         void crop_region_to_selection ();
966         void crop_region_to (nframes_t start, nframes_t end);
967         void set_sync_point (nframes64_t, const RegionSelection&);
968         void set_region_sync_from_edit_point ();
969         void remove_region_sync();
970         void align_selection (ARDOUR::RegionPoint, nframes_t position, const RegionSelection&);
971         void align_selection_relative (ARDOUR::RegionPoint point, nframes_t position, const RegionSelection&);
972         void align_region (boost::shared_ptr<ARDOUR::Region>, ARDOUR::RegionPoint point, nframes_t position);
973         void align_region_internal (boost::shared_ptr<ARDOUR::Region>, ARDOUR::RegionPoint point, nframes_t position);
974         void remove_clicked_region ();
975         void destroy_clicked_region ();
976         void edit_region ();
977         void rename_region ();
978         void duplicate_some_regions (RegionSelection&, float times);
979         void duplicate_selection (float times);
980         void region_fill_selection ();
981
982         void region_fill_track ();
983         void audition_playlist_region_standalone (boost::shared_ptr<ARDOUR::Region>);
984         void audition_playlist_region_via_route (boost::shared_ptr<ARDOUR::Region>, ARDOUR::Route&);
985         void split_multichannel_region();
986         void reverse_region ();
987         void normalize_region ();
988         void denormalize_region ();
989         void adjust_region_scale_amplitude (bool up);
990
991         void tab_to_transient (bool forward);
992
993         void use_region_as_bar ();
994         void use_range_as_bar ();
995
996         void define_one_bar (nframes64_t start, nframes64_t end);
997
998         void audition_region_from_region_list ();
999         void hide_region_from_region_list ();
1000         void remove_region_from_region_list ();
1001
1002         void align (ARDOUR::RegionPoint);
1003         void align_relative (ARDOUR::RegionPoint);
1004         void naturalize ();
1005
1006         void reset_focus ();
1007
1008         void split ();
1009
1010         void cut ();
1011         void copy ();
1012         void paste (float times);
1013
1014         int  get_prefix (float&, bool&);
1015
1016         void keyboard_paste ();
1017         void keyboard_insert_region_list_selection ();
1018
1019         void region_from_selection ();
1020         void create_region_from_selection (std::vector<boost::shared_ptr<ARDOUR::AudioRegion> >&);
1021
1022         void play_from_start ();
1023         void play_from_edit_point ();
1024         void play_from_edit_point_and_return ();
1025         void play_selected_region ();
1026         void play_edit_range ();
1027         void loop_selected_region ();
1028         void play_location (ARDOUR::Location&);
1029         void loop_location (ARDOUR::Location&);
1030
1031         void temporal_zoom_selection ();
1032         void temporal_zoom_region ();
1033         void toggle_zoom_region ();
1034         bool zoomed_to_region;
1035         void temporal_zoom_session ();
1036         void temporal_zoom (gdouble scale);
1037         void temporal_zoom_by_frame (nframes_t start, nframes_t end, const string & op);
1038         void temporal_zoom_to_frame (bool coarser, nframes_t frame);
1039
1040         void amplitude_zoom (gdouble scale);
1041         void amplitude_zoom_step (bool in);
1042
1043         void insert_region_list_drag (boost::shared_ptr<ARDOUR::AudioRegion>, int x, int y);
1044         void insert_region_list_selection (float times);
1045
1046         void add_external_audio_action (Editing::ImportMode);
1047         void external_audio_dialog ();
1048         bool check_multichannel_status (const std::vector<Glib::ustring>& paths);
1049
1050         SoundFileOmega* sfbrowser;
1051         
1052         void bring_in_external_audio (Editing::ImportMode mode,  nframes64_t& pos);
1053         void do_import (vector<Glib::ustring> paths, Editing::ImportDisposition, Editing::ImportMode mode, ARDOUR::SrcQuality, nframes64_t&);
1054
1055         void _do_embed (vector<Glib::ustring> paths, Editing::ImportDisposition, Editing::ImportMode mode,  nframes64_t&);
1056         void do_embed (vector<Glib::ustring> paths, Editing::ImportDisposition, Editing::ImportMode mode,  nframes64_t&);
1057         bool idle_do_embed (vector<Glib::ustring> paths, Editing::ImportDisposition, Editing::ImportMode mode,  nframes64_t&);
1058
1059         int  import_sndfiles (vector<Glib::ustring> paths, Editing::ImportMode mode,  ARDOUR::SrcQuality, nframes64_t& pos,
1060                               int target_regions, int target_tracks, boost::shared_ptr<ARDOUR::AudioTrack>&);
1061         int  embed_sndfiles (vector<Glib::ustring> paths, bool multiple_files, bool& check_sample_rate, Editing::ImportMode mode, 
1062                              nframes64_t& pos, int target_regions, int target_tracks, boost::shared_ptr<ARDOUR::AudioTrack>&);
1063
1064         int add_sources (vector<Glib::ustring> paths, ARDOUR::SourceList& sources, nframes64_t& pos, Editing::ImportMode,
1065                          int target_regions, int target_tracks, boost::shared_ptr<ARDOUR::AudioTrack>&, bool add_channel_suffix);
1066         int finish_bringing_in_audio (boost::shared_ptr<ARDOUR::AudioRegion> region, uint32_t, uint32_t,  nframes64_t& pos, Editing::ImportMode mode,
1067                                       boost::shared_ptr<ARDOUR::AudioTrack>& existing_track);
1068
1069         boost::shared_ptr<ARDOUR::AudioTrack> get_nth_selected_audio_track (int nth) const;
1070
1071         /* generic interthread progress window */
1072         
1073         ArdourDialog* interthread_progress_window;
1074         Gtk::Label interthread_progress_label;
1075         Gtk::VBox interthread_progress_vbox;
1076         Gtk::ProgressBar interthread_progress_bar;
1077         Gtk::Button interthread_cancel_button;
1078         Gtk::Label interthread_cancel_label;
1079         sigc::connection  interthread_progress_connection;
1080         void interthread_cancel_clicked ();
1081         void build_interthread_progress_window ();
1082         ARDOUR::InterThreadInfo* current_interthread_info;
1083
1084 #ifdef FFT_ANALYSIS
1085         AnalysisWindow* analysis_window;
1086 #endif
1087
1088         /* import specific info */
1089
1090         ARDOUR::Session::import_status import_status;
1091         gint import_progress_timeout (void *);
1092         static void *_import_thread (void *);
1093         void* import_thread ();
1094
1095         /* to support this ... */
1096
1097         void import_audio (bool as_tracks);
1098         void do_import (vector<Glib::ustring> paths, bool split, bool as_tracks);
1099
1100         void move_to_start ();
1101         void move_to_end ();
1102         void goto_frame ();
1103         void center_playhead ();
1104         void center_edit_point ();
1105         void edit_cursor_backward ();
1106         void edit_cursor_forward ();
1107         void playhead_backward ();
1108         void playhead_forward ();
1109         void scroll_playhead (bool forward);
1110         void scroll_backward (float pages=0.8f);
1111         void scroll_forward (float pages=0.8f);
1112         void scroll_tracks_down ();
1113         void scroll_tracks_up ();
1114         void delete_sample_forward ();
1115         void delete_sample_backward ();
1116         void delete_screen ();
1117         void search_backwards ();
1118         void search_forwards ();
1119         void set_mark ();
1120         void clear_markers ();
1121         void clear_ranges ();
1122         void clear_locations ();
1123         void unhide_markers ();
1124         void unhide_ranges ();
1125         void jump_forward_to_mark ();
1126         void jump_backward_to_mark ();
1127         void cursor_align (bool playhead_to_edit);
1128
1129         void remove_last_capture ();
1130         void select_all_selectables_using_time_selection ();
1131         void select_all_selectables_using_loop();
1132         void select_all_selectables_using_punch();
1133         void set_selection_from_range (ARDOUR::Location&);
1134         void set_selection_from_punch ();
1135         void set_selection_from_loop ();
1136         void set_selection_from_audio_region ();
1137
1138         void add_location_mark (nframes64_t where);
1139         void add_location_from_audio_region ();
1140         void add_location_from_selection ();
1141         void set_loop_from_selection (bool play);
1142         void set_punch_from_selection ();
1143         void set_punch_from_region ();
1144
1145         void set_loop_from_edit_range (bool play);
1146         void set_loop_from_region (bool play);
1147         void set_punch_from_edit_range ();
1148
1149         void set_loop_range (nframes_t start, nframes_t end, std::string cmd);
1150         void set_punch_range (nframes_t start, nframes_t end, std::string cmd);
1151
1152         void add_location_from_playhead_cursor ();
1153         bool select_new_marker;
1154
1155         void reverse_selection ();
1156         void edit_envelope ();
1157
1158         void start_scrolling ();
1159         void stop_scrolling ();
1160
1161         bool _scrubbing;
1162         double last_scrub_x;
1163         int scrubbing_direction;
1164         int scrub_reversals;
1165         int scrub_reverse_distance;
1166
1167         void keyboard_selection_begin ();
1168         void keyboard_selection_finish (bool add);
1169         bool have_pending_keyboard_selection;
1170         nframes_t pending_keyboard_selection_start;
1171
1172         boost::shared_ptr<ARDOUR::Region> select_region_for_operation (int dir, TimeAxisView **tv);
1173         void extend_selection_to_end_of_region (bool next);
1174         void extend_selection_to_start_of_region (bool previous);
1175
1176         Editing::SnapType snap_type;
1177         Editing::SnapMode snap_mode;
1178         double snap_threshold;
1179
1180         void handle_gui_changes (const string &, void *);
1181
1182         void    hide_all_tracks (bool with_select);
1183
1184         DragInfo drag_info;
1185         LineDragInfo current_line_drag_info;
1186
1187         void start_grab (GdkEvent*, Gdk::Cursor* cursor = 0);
1188         bool end_grab (ArdourCanvas::Item*, GdkEvent*);
1189         void swap_grab (ArdourCanvas::Item*, Gdk::Cursor* cursor, uint32_t time);
1190
1191         Gtk::Menu fade_context_menu;
1192         void popup_fade_context_menu (int, int, ArdourCanvas::Item*, ItemType);
1193
1194         void start_fade_in_grab (ArdourCanvas::Item*, GdkEvent*);
1195         void start_fade_out_grab (ArdourCanvas::Item*, GdkEvent*);
1196         void fade_in_drag_motion_callback (ArdourCanvas::Item*, GdkEvent*);
1197         void fade_out_drag_motion_callback (ArdourCanvas::Item*, GdkEvent*);
1198         void fade_in_drag_finished_callback (ArdourCanvas::Item*, GdkEvent*);
1199         void fade_out_drag_finished_callback (ArdourCanvas::Item*, GdkEvent*);
1200
1201         void set_fade_in_shape (ARDOUR::AudioRegion::FadeShape);
1202         void set_fade_out_shape (ARDOUR::AudioRegion::FadeShape);
1203         
1204         void set_fade_length (bool in);
1205         void toggle_fade_active (bool in);
1206         void set_fade_in_active (bool);
1207         void set_fade_out_active (bool);
1208         
1209         std::set<boost::shared_ptr<ARDOUR::Playlist> > motion_frozen_playlists;
1210         RegionSelection pre_drag_region_selection;
1211         void region_drag_motion_callback (ArdourCanvas::Item*, GdkEvent*);
1212         void region_drag_finished_callback (ArdourCanvas::Item*, GdkEvent*);
1213         bool check_region_drag_possible (AudioTimeAxisView**);
1214         void possibly_copy_regions_during_grab (GdkEvent*);
1215         void region_drag_splice_motion_callback (ArdourCanvas::Item*, GdkEvent*);
1216         void region_drag_splice_finished_callback (ArdourCanvas::Item*, GdkEvent*);
1217
1218         bool _dragging_playhead;
1219         bool _dragging_edit_point;
1220
1221         void cursor_drag_motion_callback (ArdourCanvas::Item*, GdkEvent*);
1222         void cursor_drag_finished_callback (ArdourCanvas::Item*, GdkEvent*);
1223         void marker_drag_motion_callback (ArdourCanvas::Item*, GdkEvent*);
1224         void marker_drag_finished_callback (ArdourCanvas::Item*, GdkEvent*);
1225         void control_point_drag_motion_callback (ArdourCanvas::Item*, GdkEvent*);
1226         void control_point_drag_finished_callback (ArdourCanvas::Item*, GdkEvent*);
1227         void line_drag_motion_callback (ArdourCanvas::Item*, GdkEvent*);
1228         void line_drag_finished_callback (ArdourCanvas::Item*, GdkEvent*);
1229
1230         void tempo_marker_drag_motion_callback (ArdourCanvas::Item*, GdkEvent*);
1231         void tempo_marker_drag_finished_callback (ArdourCanvas::Item*, GdkEvent*);
1232         void meter_marker_drag_motion_callback (ArdourCanvas::Item*, GdkEvent*);
1233         void meter_marker_drag_finished_callback (ArdourCanvas::Item*, GdkEvent*);
1234
1235         gint mouse_rename_region (ArdourCanvas::Item*, GdkEvent*);
1236
1237         void start_region_grab (ArdourCanvas::Item*, GdkEvent*);
1238         void start_region_copy_grab (ArdourCanvas::Item*, GdkEvent*);
1239         void start_region_brush_grab (ArdourCanvas::Item*, GdkEvent*);
1240         void start_selection_grab (ArdourCanvas::Item*, GdkEvent*);
1241         void start_cursor_grab (ArdourCanvas::Item*, GdkEvent*);
1242         void start_marker_grab (ArdourCanvas::Item*, GdkEvent*);
1243         void start_control_point_grab (ArdourCanvas::Item*, GdkEvent*);
1244         void start_line_grab_from_regionview (ArdourCanvas::Item*, GdkEvent*);
1245         void start_line_grab_from_line (ArdourCanvas::Item*, GdkEvent*);
1246         void start_line_grab (AutomationLine *, GdkEvent*);
1247         void start_tempo_marker_grab (ArdourCanvas::Item*, GdkEvent*);
1248         void start_tempo_marker_copy_grab (ArdourCanvas::Item*, GdkEvent*);
1249         void start_meter_marker_grab (ArdourCanvas::Item*, GdkEvent*);
1250         void start_meter_marker_copy_grab (ArdourCanvas::Item*, GdkEvent*);
1251
1252         void region_view_item_click (AudioRegionView&, GdkEventButton*);
1253
1254         void remove_gain_control_point (ArdourCanvas::Item*, GdkEvent*);
1255         void remove_control_point (ArdourCanvas::Item*, GdkEvent*);
1256
1257         void mouse_brush_insert_region (RegionView*, nframes_t pos);
1258         void brush (nframes_t);
1259
1260         void show_verbose_time_cursor (nframes_t frame, double offset = 0, double xpos=-1, double ypos=-1);
1261         void show_verbose_duration_cursor (nframes_t start, nframes_t end, double offset = 0, double xpos=-1, double ypos=-1);
1262         double clamp_verbose_cursor_x (double);
1263         double clamp_verbose_cursor_y (double);
1264
1265         /* Canvas event handlers */
1266
1267         bool canvas_control_point_event (GdkEvent* event,ArdourCanvas::Item*, ControlPoint*);
1268         bool canvas_line_event (GdkEvent* event,ArdourCanvas::Item*, AutomationLine*);
1269         bool canvas_selection_rect_event (GdkEvent* event,ArdourCanvas::Item*, SelectionRect*);
1270         bool canvas_selection_start_trim_event (GdkEvent* event,ArdourCanvas::Item*, SelectionRect*);
1271         bool canvas_selection_end_trim_event (GdkEvent* event,ArdourCanvas::Item*, SelectionRect*);
1272         bool canvas_crossfade_view_event (GdkEvent* event,ArdourCanvas::Item*, CrossfadeView*);
1273         bool canvas_fade_in_event (GdkEvent* event,ArdourCanvas::Item*, AudioRegionView*);
1274         bool canvas_fade_in_handle_event (GdkEvent* event,ArdourCanvas::Item*, AudioRegionView*);
1275         bool canvas_fade_out_event (GdkEvent* event,ArdourCanvas::Item*, AudioRegionView*);
1276         bool canvas_fade_out_handle_event (GdkEvent* event,ArdourCanvas::Item*, AudioRegionView*);
1277         
1278
1279         // These variables are used to detect a feedback loop and break it to avoid a gui hang
1280 private:
1281         ArdourCanvas::Item *last_item_entered;
1282         int last_item_entered_n;
1283 public:
1284
1285         bool canvas_region_view_event (GdkEvent* event,ArdourCanvas::Item*, RegionView*);
1286         bool canvas_region_view_name_highlight_event (GdkEvent* event,ArdourCanvas::Item*, RegionView*);
1287         bool canvas_region_view_name_event (GdkEvent* event,ArdourCanvas::Item*, RegionView*);
1288         bool canvas_stream_view_event (GdkEvent* event,ArdourCanvas::Item*, RouteTimeAxisView*);
1289         bool canvas_marker_event (GdkEvent* event,ArdourCanvas::Item*, Marker*);
1290         bool canvas_zoom_rect_event (GdkEvent* event,ArdourCanvas::Item*);
1291         bool canvas_tempo_marker_event (GdkEvent* event,ArdourCanvas::Item*, TempoMarker*);
1292         bool canvas_meter_marker_event (GdkEvent* event,ArdourCanvas::Item*, MeterMarker*);
1293         bool canvas_automation_track_event(GdkEvent* event, ArdourCanvas::Item*, AutomationTimeAxisView*) ;
1294
1295         bool canvas_tempo_bar_event (GdkEvent* event, ArdourCanvas::Item*);
1296         bool canvas_meter_bar_event (GdkEvent* event, ArdourCanvas::Item*);
1297         bool canvas_marker_bar_event (GdkEvent* event, ArdourCanvas::Item*);
1298         bool canvas_range_marker_bar_event (GdkEvent* event, ArdourCanvas::Item*);
1299         bool canvas_transport_marker_bar_event (GdkEvent* event, ArdourCanvas::Item*);
1300         bool canvas_cd_marker_bar_event (GdkEvent* event, ArdourCanvas::Item*);
1301
1302         bool canvas_imageframe_item_view_event(GdkEvent* event, ArdourCanvas::Item*,ImageFrameView*);
1303         bool canvas_imageframe_view_event(GdkEvent* event, ArdourCanvas::Item*,ImageFrameTimeAxis*);
1304         bool canvas_imageframe_start_handle_event(GdkEvent* event, ArdourCanvas::Item*,ImageFrameView*);
1305         bool canvas_imageframe_end_handle_event(GdkEvent* event, ArdourCanvas::Item*,ImageFrameView*);
1306         bool canvas_marker_time_axis_view_event(GdkEvent* event, ArdourCanvas::Item*,MarkerTimeAxis*);
1307         bool canvas_markerview_item_view_event(GdkEvent* event, ArdourCanvas::Item*,MarkerView*);
1308         bool canvas_markerview_start_handle_event(GdkEvent* event, ArdourCanvas::Item*,MarkerView*);
1309         bool canvas_markerview_end_handle_event(GdkEvent* event, ArdourCanvas::Item*,MarkerView*);
1310
1311         /* non-public event handlers */
1312
1313         bool canvas_playhead_cursor_event (GdkEvent* event, ArdourCanvas::Item*);
1314         bool track_canvas_scroll (GdkEventScroll* event);
1315         bool time_canvas_scroll (GdkEventScroll* event);
1316
1317         bool track_canvas_scroll_event (GdkEventScroll* event);
1318         bool track_canvas_button_press_event (GdkEventButton* event);
1319         bool track_canvas_button_release_event (GdkEventButton* event);
1320         bool track_canvas_motion_notify_event (GdkEventMotion* event);
1321
1322         bool time_canvas_scroll_event (GdkEventScroll* event);
1323
1324         Gtk::Allocation canvas_allocation;
1325         bool canvas_idle_queued;
1326         void track_canvas_allocate (Gtk::Allocation alloc);
1327         bool track_canvas_size_allocated ();
1328
1329         void set_playhead_cursor ();
1330
1331         void kbd_driver (sigc::slot<void,GdkEvent*>, bool use_track_canvas = true, bool use_time_canvas = true, bool can_select = true);
1332         void kbd_mute_unmute_region ();
1333         void kbd_brush ();
1334
1335         void kbd_do_brush (GdkEvent*);
1336         void kbd_do_audition (GdkEvent*);
1337
1338         void handle_new_duration ();
1339         void initialize_canvas ();
1340         void reset_scrolling_region (Gtk::Allocation* alloc = 0);
1341
1342         /* display control */
1343         
1344         bool _show_measures;
1345         bool _show_waveforms;
1346         bool _follow_playhead;
1347         bool _show_waveforms_recording;
1348         
1349         ARDOUR::TempoMap::BBTPointList *current_bbt_points;
1350         
1351         typedef vector<ArdourCanvas::SimpleLine*> TimeLineList;
1352         TimeLineList free_measure_lines;
1353         TimeLineList used_measure_lines;
1354
1355         ArdourCanvas::Group* time_line_group;
1356         ArdourCanvas::SimpleLine* get_time_line ();
1357         void hide_measures ();
1358         void draw_measures ();
1359         bool lazy_hide_and_draw_measures ();
1360
1361         void new_tempo_section ();
1362
1363         void mouse_add_new_tempo_event (nframes_t where);
1364         void mouse_add_new_meter_event (nframes_t where);
1365
1366         void remove_tempo_marker (ArdourCanvas::Item*);
1367         void remove_meter_marker (ArdourCanvas::Item*);
1368         gint real_remove_tempo_marker (ARDOUR::TempoSection*);
1369         gint real_remove_meter_marker (ARDOUR::MeterSection*);
1370         
1371         void edit_tempo_section (ARDOUR::TempoSection*);
1372         void edit_meter_section (ARDOUR::MeterSection*);
1373         void edit_tempo_marker (ArdourCanvas::Item*);
1374         void edit_meter_marker (ArdourCanvas::Item*);
1375         
1376         void marker_menu_edit ();
1377         void marker_menu_remove ();
1378         void marker_menu_rename ();
1379         void marker_menu_lock (bool yn);
1380         void marker_menu_hide ();
1381         void marker_menu_loop_range ();
1382         void marker_menu_select_all_selectables_using_range ();
1383         void marker_menu_select_using_range ();
1384         void marker_menu_separate_regions_using_location ();
1385         void marker_menu_play_from ();
1386         void marker_menu_play_range ();
1387         void marker_menu_set_playhead ();
1388         void marker_menu_set_from_playhead ();
1389         void marker_menu_set_from_selection ();
1390         void new_transport_marker_menu_set_loop ();
1391         void new_transport_marker_menu_set_punch ();
1392         void update_loop_range_view (bool visibility=false);
1393         void update_punch_range_view (bool visibility=false);
1394         gint new_transport_marker_menu_popdown (GdkEventAny*);
1395         void marker_context_menu (GdkEventButton*, ArdourCanvas::Item*);
1396         void tm_marker_context_menu (GdkEventButton*, ArdourCanvas::Item*);
1397         void transport_marker_context_menu (GdkEventButton*, ArdourCanvas::Item*);
1398         void new_transport_marker_context_menu (GdkEventButton*, ArdourCanvas::Item*);
1399         void build_range_marker_menu (bool loop_or_punch);
1400         void build_marker_menu (bool start_or_end);
1401         void build_tm_marker_menu ();
1402         void build_new_transport_marker_menu ();
1403
1404         Gtk::Menu* tm_marker_menu;
1405         Gtk::Menu* marker_menu;
1406         Gtk::Menu* start_end_marker_menu;
1407         Gtk::Menu* range_marker_menu;
1408         Gtk::Menu* transport_marker_menu;
1409         Gtk::Menu* new_transport_marker_menu;
1410         Gtk::Menu* cd_marker_menu;
1411         ArdourCanvas::Item* marker_menu_item;
1412
1413         typedef list<Marker*> Marks;
1414         Marks metric_marks;
1415
1416         void remove_metric_marks ();
1417         void draw_metric_marks (const ARDOUR::Metrics& metrics);
1418
1419         void tempo_map_changed (ARDOUR::Change);
1420         void redisplay_tempo (bool immediate_redraw);
1421         
1422         void snap_to (nframes64_t& first, int32_t direction = 0, bool for_mark = false);
1423         void snap_to (nframes_t& first, int32_t direction = 0, bool for_mark = false) {
1424                 /* XXX remove this function when everything moves to 64 bit frame counts */
1425                 nframes64_t first64 = first;
1426                 snap_to (first64, direction, for_mark);
1427                 first = (nframes_t) first64;
1428         }
1429
1430         uint32_t bbt_beat_subdivision;
1431
1432         /* toolbar */
1433         
1434         Gtk::ToggleButton        editor_mixer_button;
1435
1436         void editor_mixer_button_toggled ();
1437
1438         AudioClock               edit_point_clock;
1439         AudioClock               zoom_range_clock;
1440         Gtk::Button              zoom_in_button;
1441         Gtk::Button              zoom_out_button;
1442         Gtk::Button              zoom_out_full_button;
1443         Gtk::Button              zoom_onetoone_button;
1444
1445         Gtk::VBox                toolbar_clock_vbox;
1446         Gtk::VBox                toolbar_selection_clock_vbox; 
1447         Gtk::Table               toolbar_selection_clock_table;
1448         Gtk::Label               toolbar_selection_cursor_label;
1449         
1450         Gtk::HBox                mouse_mode_button_box;
1451         Gtkmm2ext::TearOff*      mouse_mode_tearoff;
1452         Gtk::ToggleButton        mouse_select_button;
1453         Gtk::ToggleButton        mouse_move_button;
1454         Gtk::ToggleButton        mouse_gain_button;
1455         Gtk::ToggleButton        mouse_zoom_button;
1456         Gtk::ToggleButton        mouse_timefx_button;
1457         Gtk::ToggleButton        mouse_audition_button;
1458         GroupedButtons          *mouse_mode_button_set;
1459         void                     mouse_mode_toggled (Editing::MouseMode m);
1460         bool                     ignore_mouse_mode_toggle;
1461
1462         gint                     mouse_select_button_release (GdkEventButton*);
1463
1464         Gtk::VBox                automation_box;
1465         Gtk::Button              automation_mode_button;
1466         Gtk::ToggleButton        global_automation_button;
1467
1468         Gtk::ComboBoxText edit_mode_selector;
1469         Gtk::VBox         edit_mode_box;
1470
1471         void set_edit_mode (ARDOUR::EditMode);
1472         void cycle_edit_mode ();
1473         void edit_mode_selection_done ();
1474
1475         Gtk::ComboBoxText snap_type_selector;
1476         Gtk::ComboBoxText snap_mode_selector;
1477         Gtk::HBox         snap_box;
1478
1479         std::vector<std::string> snap_type_strings;
1480         std::vector<std::string> snap_mode_strings;
1481
1482         void snap_type_selection_done ();
1483         void snap_mode_selection_done ();
1484         void snap_mode_chosen (Editing::SnapMode);
1485         void snap_type_chosen (Editing::SnapType);
1486
1487         Glib::RefPtr<Gtk::RadioAction> snap_type_action (Editing::SnapType);
1488         Glib::RefPtr<Gtk::RadioAction> snap_mode_action (Editing::SnapMode);
1489
1490         Gtk::ComboBoxText zoom_focus_selector;
1491         Gtk::VBox         zoom_focus_box;
1492
1493         std::vector<std::string> zoom_focus_strings;
1494         
1495         void zoom_focus_selection_done ();
1496         void zoom_focus_chosen (Editing::ZoomFocus);
1497
1498         Glib::RefPtr<Gtk::RadioAction> zoom_focus_action (Editing::ZoomFocus);
1499
1500         Gtk::HBox           zoom_box;
1501
1502         void                zoom_adjustment_changed();
1503
1504         void                edit_point_clock_changed();
1505         
1506         void setup_toolbar ();
1507
1508         Gtkmm2ext::TearOff*       tools_tearoff;
1509         Gtk::HBox                toolbar_hbox;
1510         Gtk::EventBox            toolbar_base;
1511         Gtk::Frame               toolbar_frame;
1512
1513         /* selection process */
1514
1515         Selection* selection;
1516         Selection* cut_buffer;
1517
1518         void time_selection_changed ();
1519         void track_selection_changed ();
1520         void region_selection_changed ();
1521         void point_selection_changed ();
1522         void marker_selection_changed ();
1523
1524         enum SelectionOp {
1525                 CreateSelection,
1526                 SelectionStartTrim,
1527                 SelectionEndTrim,
1528                 SelectionMove
1529         } selection_op;
1530
1531         void start_selection_op (ArdourCanvas::Item* item, GdkEvent* event, SelectionOp);
1532         void drag_selection (ArdourCanvas::Item* item, GdkEvent* event);
1533         void end_selection_op (ArdourCanvas::Item* item, GdkEvent* event);
1534         void cancel_selection ();
1535
1536         void region_selection_op (void (ARDOUR::Region::*pmf)(void));
1537         void region_selection_op (void (ARDOUR::Region::*pmf)(void*), void*);
1538         void region_selection_op (void (ARDOUR::Region::*pmf)(bool), bool);
1539
1540         bool audio_region_selection_covers (nframes_t where);
1541
1542         /* transport range select process */
1543         enum RangeMarkerOp {
1544                 CreateRangeMarker,
1545                 CreateTransportMarker,
1546                 CreateCDMarker
1547         } range_marker_op;
1548
1549         void start_range_markerbar_op (ArdourCanvas::Item* item, GdkEvent* event, RangeMarkerOp);
1550         void drag_range_markerbar_op (ArdourCanvas::Item* item, GdkEvent* event);
1551         void end_range_markerbar_op (ArdourCanvas::Item* item, GdkEvent* event);
1552
1553         ArdourCanvas::SimpleRect*  range_bar_drag_rect;
1554         ArdourCanvas::SimpleRect*  transport_bar_drag_rect;
1555         ArdourCanvas::Line*        marker_drag_line;
1556         ArdourCanvas::Points       marker_drag_line_points;
1557         ArdourCanvas::SimpleRect*  range_marker_drag_rect;
1558
1559         void update_marker_drag_item (ARDOUR::Location *);
1560         
1561         ArdourCanvas::SimpleRect     *transport_bar_range_rect;
1562         ArdourCanvas::SimpleRect     *transport_bar_preroll_rect;
1563         ArdourCanvas::SimpleRect     *transport_bar_postroll_rect;
1564         ArdourCanvas::SimpleRect     *transport_loop_range_rect;
1565         ArdourCanvas::SimpleRect     *transport_punch_range_rect;
1566         ArdourCanvas::SimpleLine     *transport_punchin_line;
1567         ArdourCanvas::SimpleLine     *transport_punchout_line;
1568         ArdourCanvas::SimpleRect     *transport_preroll_rect;
1569         ArdourCanvas::SimpleRect     *transport_postroll_rect;
1570
1571         ARDOUR::Location*  transport_loop_location();
1572         ARDOUR::Location*  transport_punch_location();
1573
1574         ARDOUR::Location   *temp_location;
1575         
1576         /* object rubberband select process */
1577         
1578         void start_rubberband_select (ArdourCanvas::Item* item, GdkEvent* event);
1579         void drag_rubberband_select (ArdourCanvas::Item* item, GdkEvent* event);
1580         void end_rubberband_select (ArdourCanvas::Item* item, GdkEvent* event);
1581
1582         bool select_all_within (nframes_t start, nframes_t end, gdouble topy, gdouble boty, const TrackViewList&, Selection::Operation op);
1583         
1584         ArdourCanvas::SimpleRect   *rubberband_rect;
1585         
1586         /* mouse zoom process */
1587
1588         void start_mouse_zoom (ArdourCanvas::Item* item, GdkEvent* event);
1589         void drag_mouse_zoom (ArdourCanvas::Item* item, GdkEvent* event);
1590         void end_mouse_zoom (ArdourCanvas::Item* item, GdkEvent* event);
1591
1592         ArdourCanvas::SimpleRect   *zoom_rect;
1593         void reposition_zoom_rect (nframes_t start, nframes_t end);
1594         
1595         /* diskstream/route display management */
1596
1597         struct RouteDisplayModelColumns : public Gtk::TreeModel::ColumnRecord {
1598             RouteDisplayModelColumns() { 
1599                     add (text);
1600                     add (visible);
1601                     add (tv);
1602                     add (route);
1603             }
1604             Gtk::TreeModelColumn<Glib::ustring>  text;
1605             Gtk::TreeModelColumn<bool>           visible;
1606             Gtk::TreeModelColumn<TimeAxisView*>  tv;
1607             Gtk::TreeModelColumn<boost::shared_ptr<ARDOUR::Route> >  route;
1608         };
1609
1610         RouteDisplayModelColumns         route_display_columns;
1611         Glib::RefPtr<Gtk::ListStore>     route_display_model;
1612         Glib::RefPtr<Gtk::TreeSelection> route_display_selection;
1613
1614         Gtkmm2ext::DnDTreeView<boost::shared_ptr<ARDOUR::Route> > route_list_display; 
1615         Gtk::ScrolledWindow                   route_list_scroller;
1616         Gtk::Menu*                            route_list_menu;
1617
1618         void sync_order_keys ();
1619         bool ignore_route_order_sync;
1620
1621         bool route_list_display_button_press (GdkEventButton*);
1622         void route_list_display_drag_data_received  (const Glib::RefPtr<Gdk::DragContext>& context,
1623                                                      gint                x,
1624                                                      gint                y,
1625                                                      const Gtk::SelectionData& data,
1626                                                      guint               info,
1627                                                      guint               time);
1628
1629         bool route_list_selection_filter (const Glib::RefPtr<Gtk::TreeModel>& model, const Gtk::TreeModel::Path& path, bool yn);
1630
1631         void route_list_change (const Gtk::TreeModel::Path&,const Gtk::TreeModel::iterator&);
1632         void route_list_delete (const Gtk::TreeModel::Path&);
1633         void track_list_reorder (const Gtk::TreeModel::Path& path, const Gtk::TreeModel::iterator& iter, int* new_order);
1634
1635         void initial_route_list_display ();
1636         void redisplay_route_list();
1637         bool ignore_route_list_reorder;
1638         bool no_route_list_redisplay;
1639
1640         void build_route_list_menu ();
1641         void show_route_list_menu ();
1642
1643         void show_all_routes ();
1644         void hide_all_routes ();
1645         void show_all_audiotracks ();
1646         void hide_all_audiotracks ();
1647         void show_all_audiobus ();
1648         void hide_all_audiobus ();
1649
1650         void set_all_tracks_visibility (bool yn);
1651         void set_all_audio_visibility (int type, bool yn);
1652
1653         /* edit group management */
1654
1655         struct GroupListModelColumns : public Gtk::TreeModel::ColumnRecord {
1656                 GroupListModelColumns () {
1657                        add (is_active);
1658                        add (is_visible);
1659                        add (text);
1660                        add (routegroup);
1661                 }
1662                 Gtk::TreeModelColumn<bool> is_active;
1663                 Gtk::TreeModelColumn<bool> is_visible;
1664                 Gtk::TreeModelColumn<std::string> text;
1665                 Gtk::TreeModelColumn<ARDOUR::RouteGroup*>   routegroup;
1666         };
1667
1668         GroupListModelColumns group_columns;
1669         Glib::RefPtr<Gtk::ListStore> group_model;
1670         Glib::RefPtr<Gtk::TreeSelection> group_selection;
1671
1672         Gtk::TreeView          edit_group_display;
1673         Gtk::ScrolledWindow    edit_group_display_scroller;
1674         Gtk::Menu*             edit_group_list_menu;
1675
1676         void build_edit_group_list_menu ();
1677         void activate_all_edit_groups ();
1678         void disable_all_edit_groups ();
1679
1680         bool in_edit_group_row_change;
1681         void edit_group_row_change (const Gtk::TreeModel::Path&,const Gtk::TreeModel::iterator&);
1682         void edit_group_name_edit (const Glib::ustring&, const Glib::ustring&);
1683         void new_edit_group ();
1684         void edit_group_list_button_clicked ();
1685         gint edit_group_list_button_press_event (GdkEventButton* ev);
1686         void add_edit_group (ARDOUR::RouteGroup* group);
1687         void remove_selected_edit_group ();
1688         void edit_groups_changed ();
1689         void group_flags_changed (void*, ARDOUR::RouteGroup*);
1690
1691         Gtk::VBox           list_vpacker;
1692
1693         /* autoscrolling */
1694
1695         bool autoscroll_active;
1696         int autoscroll_timeout_tag;
1697         int autoscroll_direction;
1698         uint32_t autoscroll_cnt;
1699         nframes_t autoscroll_distance;
1700      
1701         static gint _autoscroll_canvas (void *);
1702         bool autoscroll_canvas ();
1703         void start_canvas_autoscroll (int direction);
1704         void stop_canvas_autoscroll ();
1705         void maybe_autoscroll (GdkEvent*);
1706
1707         /* trimming */
1708         enum TrimOp {
1709                 StartTrim,
1710                 EndTrim,
1711                 ContentsTrim,
1712         } trim_op;
1713
1714         void start_trim (ArdourCanvas::Item*, GdkEvent*);
1715         void point_trim (GdkEvent*);
1716         void trim_motion_callback (ArdourCanvas::Item*, GdkEvent*);
1717         void single_contents_trim (RegionView&, nframes_t, bool, bool, bool);
1718         void single_start_trim (RegionView&, nframes_t, bool, bool);
1719         void single_end_trim (RegionView&, nframes_t, bool, bool);
1720
1721         void trim_finished_callback (ArdourCanvas::Item*, GdkEvent*);
1722         void thaw_region_after_trim (RegionView& rv);
1723
1724         void trim_region_front();
1725         void trim_region_back();
1726         void trim_region (bool front);
1727
1728         void trim_region_to_edit_point ();
1729         void trim_region_from_edit_point ();
1730         void trim_region_to_loop ();
1731         void trim_region_to_punch ();
1732         void trim_region_to_location (const ARDOUR::Location&, const char* cmd);
1733
1734         bool show_gain_after_trim;
1735
1736         /* Drag-n-Drop */
1737
1738         int convert_drop_to_paths (std::vector<Glib::ustring>& paths,
1739                                    const Glib::RefPtr<Gdk::DragContext>& context,
1740                                    gint                x,
1741                                    gint                y,
1742                                    const Gtk::SelectionData& data,
1743                                    guint               info,
1744                                    guint               time);
1745
1746         void  track_canvas_drag_data_received  (const Glib::RefPtr<Gdk::DragContext>& context,
1747                                                 gint                x,
1748                                                 gint                y,
1749                                                 const Gtk::SelectionData& data,
1750                                                 guint               info,
1751                                                 guint               time);
1752         
1753         void  region_list_display_drag_data_received  (const Glib::RefPtr<Gdk::DragContext>& context,
1754                                                        gint                x,
1755                                                        gint                y,
1756                                                        const Gtk::SelectionData& data,
1757                                                        guint               info,
1758                                                        guint               time);
1759
1760
1761         void  drop_paths  (const Glib::RefPtr<Gdk::DragContext>& context,
1762                            gint                x,
1763                            gint                y,
1764                            const Gtk::SelectionData& data,
1765                            guint               info,
1766                            guint               time);
1767
1768         void  drop_regions  (const Glib::RefPtr<Gdk::DragContext>& context,
1769                              gint                x,
1770                              gint                y,
1771                              const Gtk::SelectionData& data,
1772                              guint               info,
1773                              guint               time);
1774
1775         /* audio export */
1776
1777         ExportDialog *export_dialog;
1778         ExportDialog *export_range_markers_dialog;
1779         
1780         void export_range (nframes_t start, nframes_t end);
1781         void export_range_markers ();
1782
1783         int  write_region_selection(RegionSelection&);
1784         bool write_region (string path, boost::shared_ptr<ARDOUR::AudioRegion>);
1785         void export_region ();
1786         void bounce_region_selection ();
1787         void bounce_range_selection ();
1788         void external_edit_region ();
1789
1790         int write_audio_selection (TimeSelection&);
1791         bool write_audio_range (ARDOUR::AudioPlaylist&, uint32_t channels, list<ARDOUR::AudioRange>&);
1792
1793         void write_selection ();
1794
1795         /* history */
1796
1797         UndoAction get_memento() const;
1798
1799         XMLNode *before; /* used in *_reversible_command */
1800         void begin_reversible_command (string cmd_name);
1801         void commit_reversible_command ();
1802
1803         /* visual history */
1804
1805         UndoHistory visual_history;
1806         UndoTransaction current_visual_command;
1807
1808
1809         void update_title ();   
1810         void update_title_s (const string & snapshot_name);
1811
1812         struct State {
1813             Selection* selection;
1814             double     frames_per_unit;
1815
1816             State();
1817             ~State();
1818         };
1819
1820         void store_state (State&) const;
1821         void restore_state (State *);
1822
1823         void instant_save ();
1824
1825         boost::shared_ptr<ARDOUR::AudioRegion> last_audition_region;
1826         
1827         /* freeze operations */
1828
1829         ARDOUR::InterThreadInfo freeze_status;
1830         gint freeze_progress_timeout (void *);
1831         static void* _freeze_thread (void*);
1832         void* freeze_thread ();
1833
1834         void freeze_route ();
1835         void unfreeze_route ();
1836
1837         /* edit-group solo + mute */
1838
1839         void set_edit_group_solo (ARDOUR::Route&, bool);
1840         void set_edit_group_mute (ARDOUR::Route&, bool);
1841
1842         /* duplication */
1843
1844         void duplicate_dialog (bool with_dialog);
1845         
1846         nframes64_t event_frame (GdkEvent*, double* px = 0, double* py = 0) const;
1847
1848         /* returns false if mouse pointer is not in track or marker canvas
1849          */
1850         bool mouse_frame (nframes64_t&, bool& in_track_canvas) const;
1851
1852         void time_fx_motion (ArdourCanvas::Item*, GdkEvent*);
1853         void start_time_fx (ArdourCanvas::Item*, GdkEvent*);
1854         void end_time_fx (ArdourCanvas::Item*, GdkEvent*);
1855
1856         struct TimeFXDialog : public ArdourDialog {
1857             ARDOUR::TimeFXRequest request;
1858             Editor&               editor;
1859             bool                  pitching;
1860             Gtk::Adjustment       pitch_octave_adjustment;
1861             Gtk::Adjustment       pitch_semitone_adjustment;
1862             Gtk::Adjustment       pitch_cent_adjustment;
1863             Gtk::SpinButton       pitch_octave_spinner;
1864             Gtk::SpinButton       pitch_semitone_spinner;
1865             Gtk::SpinButton       pitch_cent_spinner;
1866             RegionSelection       regions;
1867             Gtk::ProgressBar      progress_bar;
1868
1869             /* SoundTouch */
1870             Gtk::ToggleButton     quick_button;
1871             Gtk::ToggleButton     antialias_button;
1872             Gtk::HBox             upper_button_box;
1873
1874             /* RubberBand */
1875             Gtk::ComboBoxText     stretch_opts_selector;
1876             Gtk::Label            stretch_opts_label;
1877             Gtk::ToggleButton     precise_button;
1878             Gtk::HBox             opts_box;
1879
1880             Gtk::Button*          cancel_button;
1881             Gtk::Button*          action_button;
1882             Gtk::VBox             packer;
1883             int                   status;
1884
1885             TimeFXDialog (Editor& e, bool for_pitch);
1886
1887             gint update_progress ();
1888             sigc::connection first_cancel;
1889             sigc::connection first_delete;
1890             void cancel_in_progress ();
1891             gint delete_in_progress (GdkEventAny*);
1892         };
1893
1894         /* "whats mine is yours" */
1895
1896         friend class TimeFXDialog;
1897
1898         TimeFXDialog* current_timefx;
1899
1900         static void* timefx_thread (void *arg);
1901         void do_timefx (TimeFXDialog&);
1902
1903         int time_stretch (RegionSelection&, float fraction);
1904         int pitch_shift (RegionSelection&, float cents);
1905         void pitch_shift_regions ();
1906         int time_fx (RegionSelection&, float val, bool pitching);
1907
1908         /* editor-mixer strip */
1909
1910         MixerStrip *current_mixer_strip;
1911         bool show_editor_mixer_when_tracks_arrive;
1912         Gtk::VBox current_mixer_strip_vbox;
1913         void cms_deleted ();
1914         void current_mixer_strip_hidden ();
1915         void current_mixer_strip_removed ();
1916
1917         void detach_tearoff (Gtk::Box* b, Gtk::Window* w);
1918         void reattach_tearoff (Gtk::Box* b, Gtk::Window* w, int32_t n);
1919
1920         /* nudging tracks */
1921
1922         void nudge_track (bool use_edit_point, bool forwards);
1923
1924         /* xfades */
1925
1926         bool _xfade_visibility;
1927         
1928         /* <CMT Additions> */
1929         void handle_new_imageframe_time_axis_view(const string & track_name, void* src) ;
1930         void handle_new_imageframe_marker_time_axis_view(const string & track_name, TimeAxisView* marked_track) ;
1931
1932         void start_imageframe_grab(ArdourCanvas::Item*, GdkEvent*) ;
1933         void start_markerview_grab(ArdourCanvas::Item*, GdkEvent*) ;
1934
1935         void imageframe_drag_motion_callback(ArdourCanvas::Item*, GdkEvent*) ;
1936         void markerview_drag_motion_callback(ArdourCanvas::Item*, GdkEvent*) ;
1937         void timeaxis_item_drag_finished_callback(ArdourCanvas::Item*, GdkEvent*) ;
1938
1939         gint canvas_imageframe_item_view_event(ArdourCanvas::Item* item, GdkEvent* event, ImageFrameView* ifv);
1940         gint canvas_imageframe_view_event(ArdourCanvas::Item* item, GdkEvent* event, ImageFrameTimeAxis* ifta);
1941         gint canvas_imageframe_start_handle_event(ArdourCanvas::Item* item, GdkEvent* event, ImageFrameView* ifv);
1942         gint canvas_imageframe_end_handle_event(ArdourCanvas::Item* item, GdkEvent* event, ImageFrameView* ifv);
1943
1944         gint canvas_marker_time_axis_view_event(ArdourCanvas::Item* item, GdkEvent* event, MarkerTimeAxis* mta);
1945         gint canvas_markerview_item_view_event(ArdourCanvas::Item* item, GdkEvent* event, MarkerView* mv);
1946         gint canvas_markerview_start_handle_event(ArdourCanvas::Item* item, GdkEvent* event, MarkerView* mv);
1947         gint canvas_markerview_end_handle_event(ArdourCanvas::Item* item, GdkEvent* event, MarkerView* mv);
1948
1949         void imageframe_start_handle_op(ArdourCanvas::Item* item, GdkEvent* event) ;
1950         void imageframe_end_handle_op(ArdourCanvas::Item* item, GdkEvent* event) ;
1951         void imageframe_start_handle_trim_motion(ArdourCanvas::Item* item, GdkEvent* event) ;
1952         void imageframe_start_handle_end_trim(ArdourCanvas::Item* item, GdkEvent* event) ;
1953         void imageframe_end_handle_trim_motion(ArdourCanvas::Item* item, GdkEvent* event) ;
1954         void imageframe_end_handle_end_trim(ArdourCanvas::Item* item, GdkEvent* event) ;
1955         
1956         void markerview_item_start_handle_op(ArdourCanvas::Item* item, GdkEvent* event) ;
1957         void markerview_item_end_handle_op(ArdourCanvas::Item* item, GdkEvent* event) ;
1958         void markerview_start_handle_trim_motion(ArdourCanvas::Item* item, GdkEvent* event) ;
1959         void markerview_start_handle_end_trim(ArdourCanvas::Item* item, GdkEvent* event) ;
1960         void markerview_end_handle_trim_motion(ArdourCanvas::Item* item, GdkEvent* event) ;
1961         void markerview_end_handle_end_trim(ArdourCanvas::Item* item, GdkEvent* event) ;
1962
1963         void popup_imageframe_edit_menu(int button, int32_t time, ArdourCanvas::Item* ifv, bool with_frame) ;
1964         void popup_marker_time_axis_edit_menu(int button, int32_t time, ArdourCanvas::Item* ifv, bool with_frame) ;
1965
1966         ImageFrameSocketHandler* image_socket_listener ;
1967         /* </CMT Additions> */
1968
1969         void toggle_xfade_active (boost::weak_ptr<ARDOUR::Crossfade>);
1970         void toggle_xfade_length (boost::weak_ptr<ARDOUR::Crossfade>);
1971         void edit_xfade (boost::weak_ptr<ARDOUR::Crossfade>);
1972         void xfade_edit_left_region ();
1973         void xfade_edit_right_region ();
1974
1975         static const int32_t default_width = 995;
1976         static const int32_t default_height = 765;
1977
1978         /* nudge */
1979
1980         Gtk::Button      nudge_forward_button;
1981         Gtk::Button      nudge_backward_button;
1982         Gtk::HBox        nudge_hbox;
1983         Gtk::VBox        nudge_vbox;
1984         AudioClock       nudge_clock;
1985
1986         nframes_t get_nudge_distance (nframes_t pos, nframes_t& next);
1987
1988         bool nudge_forward_release (GdkEventButton*);
1989         bool nudge_backward_release (GdkEventButton*);
1990         
1991         /* audio filters */
1992
1993         void apply_filter (ARDOUR::AudioFilter&, string cmd);
1994
1995         /* handling cleanup */
1996
1997         int playlist_deletion_dialog (boost::shared_ptr<ARDOUR::Playlist>);
1998
1999         vector<sigc::connection> session_connections;
2000
2001         /* tracking step changes of track height */
2002
2003         TimeAxisView* current_stepping_trackview;
2004         struct timeval last_track_height_step_timestamp;
2005         gint track_height_step_timeout();
2006         sigc::connection step_timeout;
2007
2008         TimeAxisView* entered_track;
2009         RegionView*   entered_regionview;
2010
2011         class ExclusiveRegionSelection {
2012           public:
2013                 ExclusiveRegionSelection (Editor&, RegionView*);
2014                 ~ExclusiveRegionSelection ();
2015
2016           private:
2017                 Editor& editor;
2018                 RegionView* regionview;
2019                 bool remove;
2020         };
2021
2022         void ensure_entered_region_selected (bool op_acts_on_objects = false);
2023         void ensure_entered_track_selected (bool op_acts_on_objects = false);
2024         bool clear_entered_track;
2025         gint left_track_canvas (GdkEventCrossing*);
2026         void set_entered_track (TimeAxisView*);
2027         void set_entered_regionview (RegionView*);
2028         gint left_automation_track ();
2029
2030         bool _new_regionviews_show_envelope;
2031
2032         void toggle_gain_envelope_visibility ();
2033         void toggle_gain_envelope_active ();
2034         void reset_region_gain_envelopes ();
2035
2036         bool on_key_press_event (GdkEventKey*);
2037         bool on_key_release_event (GdkEventKey*);
2038
2039         void session_state_saved (string);
2040
2041         Glib::RefPtr<Gtk::Action>              undo_action;
2042         Glib::RefPtr<Gtk::Action>              redo_action;
2043
2044         void history_changed ();
2045         void color_handler ();
2046         
2047         Gtk::HBox      status_bar_hpacker;
2048
2049         Editing::EditPoint _edit_point;
2050
2051         Gtk::ComboBoxText edit_point_selector;
2052
2053         void set_edit_point_preference (Editing::EditPoint ep);
2054         void cycle_edit_point (bool with_marker);
2055         void set_edit_point ();
2056         void edit_point_selection_done ();
2057         void edit_point_chosen (Editing::EditPoint);
2058         Glib::RefPtr<Gtk::RadioAction> edit_point_action (Editing::EditPoint);
2059         std::vector<std::string> edit_point_strings;
2060
2061         void selected_marker_moved (ARDOUR::Location*);
2062         sigc::connection edit_point_clock_connection_a;
2063         sigc::connection edit_point_clock_connection_b;
2064
2065         bool get_edit_op_range (nframes64_t& start, nframes64_t& end) const;
2066
2067         RegionSelection get_regions_at (nframes64_t where, const TrackSelection& ts) const;
2068         RegionSelection get_regions_after (nframes64_t where, const TrackSelection& ts) const;
2069         
2070         RegionSelection tmp_regions;
2071         
2072         RegionSelection& get_regions_for_action ();
2073
2074         sigc::connection fast_screen_update_connection;
2075         gint start_updating ();
2076         gint stop_updating ();
2077         void fast_update_strips ();
2078         bool meters_running;
2079
2080         void select_next_route ();
2081         void select_prev_route ();
2082
2083         RhythmFerret* rhythm_ferret;
2084 };
2085
2086 #endif /* __ardour_editor_h__ */