Fix uninitialized variable
[ardour.git] / gtk2_ardour / editor_canvas.cc
index 43b97a36f7fb928244b017ccad8aaea66f5cb310..2e92a374804a99ad06e6624d7296ac38b29f0d3a 100644 (file)
@@ -217,6 +217,8 @@ Editor::initialize_canvas ()
 
        playhead_cursor = new EditorCursor (*this, &Editor::canvas_playhead_cursor_event);
 
+       snapped_cursor = new EditorCursor (*this);
+
        _canvas_drop_zone = new ArdourCanvas::Rectangle (hv_scroll_group, ArdourCanvas::Rect (0.0, 0.0, ArdourCanvas::COORD_MAX, 0.0));
        /* this thing is transparent */
        _canvas_drop_zone->set_fill (false);
@@ -304,7 +306,7 @@ Editor::track_canvas_viewport_size_allocated ()
        }
 
        update_fixed_rulers();
-       redisplay_tempo (false);
+       redisplay_grid (false);
        _summary->set_overlays_dirty ();
 }
 
@@ -371,6 +373,9 @@ Editor::track_canvas_drag_data_received (const RefPtr<Gdk::DragContext>& context
                                         const SelectionData& data,
                                         guint info, guint time)
 {
+       if (!ARDOUR_UI_UTILS::engine_is_running ()) {
+               return;
+       }
        if (data.get_target() == "regions") {
                drop_regions (context, x, y, data, info, time);
        } else {
@@ -379,14 +384,14 @@ Editor::track_canvas_drag_data_received (const RefPtr<Gdk::DragContext>& context
 }
 
 bool
-Editor::idle_drop_paths (vector<string> paths, framepos_t frame, double ypos, bool copy)
+Editor::idle_drop_paths (vector<string> paths, samplepos_t sample, double ypos, bool copy)
 {
-       drop_paths_part_two (paths, frame, ypos, copy);
+       drop_paths_part_two (paths, sample, ypos, copy);
        return false;
 }
 
 void
-Editor::drop_paths_part_two (const vector<string>& paths, framepos_t frame, double ypos, bool copy)
+Editor::drop_paths_part_two (const vector<string>& paths, samplepos_t sample, double ypos, bool copy)
 {
        RouteTimeAxisView* tv;
 
@@ -412,15 +417,15 @@ Editor::drop_paths_part_two (const vector<string>& paths, framepos_t frame, doub
 
                /* drop onto canvas background: create new tracks */
 
-               frame = 0;
+               sample = 0;
                InstrumentSelector is; // instantiation builds instrument-list and sets default.
-               do_import (midi_paths, Editing::ImportDistinctFiles, ImportAsTrack, SrcBest, SMFTrackName, SMFTempoIgnore, frame, is.selected_instrument());
+               do_import (midi_paths, Editing::ImportDistinctFiles, ImportAsTrack, SrcBest, SMFTrackName, SMFTempoIgnore, sample, is.selected_instrument());
 
                if (UIConfiguration::instance().get_only_copy_imported_files() || copy) {
                        do_import (audio_paths, Editing::ImportDistinctFiles, Editing::ImportAsTrack,
-                                  SrcBest, SMFTrackName, SMFTempoIgnore, frame);
+                                  SrcBest, SMFTrackName, SMFTempoIgnore, sample);
                } else {
-                       do_embed (audio_paths, Editing::ImportDistinctFiles, ImportAsTrack, frame);
+                       do_embed (audio_paths, Editing::ImportDistinctFiles, ImportAsTrack, sample);
                }
 
        } else if ((tv = dynamic_cast<RouteTimeAxisView*> (tvp.first)) != 0) {
@@ -432,13 +437,13 @@ Editor::drop_paths_part_two (const vector<string>& paths, framepos_t frame, doub
                        selection->set (tv);
 
                        do_import (midi_paths, Editing::ImportSerializeFiles, ImportToTrack,
-                                  SrcBest, SMFTrackName, SMFTempoIgnore, frame);
+                                  SrcBest, SMFTrackName, SMFTempoIgnore, sample);
 
                        if (UIConfiguration::instance().get_only_copy_imported_files() || copy) {
                                do_import (audio_paths, Editing::ImportSerializeFiles, Editing::ImportToTrack,
-                                          SrcBest, SMFTrackName, SMFTempoIgnore, frame);
+                                          SrcBest, SMFTrackName, SMFTempoIgnore, sample);
                        } else {
-                               do_embed (audio_paths, Editing::ImportSerializeFiles, ImportToTrack, frame);
+                               do_embed (audio_paths, Editing::ImportSerializeFiles, ImportToTrack, sample);
                        }
                }
        }
@@ -463,7 +468,7 @@ Editor::drop_paths (const RefPtr<Gdk::DragContext>& context,
                ev.button.x = x;
                ev.button.y = y;
 
-               MusicFrame when (window_event_sample (&ev, 0, &cy), 0);
+               MusicSample when (window_event_sample (&ev, 0, &cy), 0);
                snap_to (when);
 
                bool copy = ((context->get_actions() & (Gdk::ACTION_COPY | Gdk::ACTION_LINK | Gdk::ACTION_MOVE)) == Gdk::ACTION_COPY);
@@ -472,9 +477,9 @@ Editor::drop_paths (const RefPtr<Gdk::DragContext>& context,
                   the main event loop with GTK/Quartz. Since import/embed wants
                   to push up a progress dialog, defer all this till we go idle.
                */
-               Glib::signal_idle().connect (sigc::bind (sigc::mem_fun (*this, &Editor::idle_drop_paths), paths, when.frame, cy, copy));
+               Glib::signal_idle().connect (sigc::bind (sigc::mem_fun (*this, &Editor::idle_drop_paths), paths, when.sample, cy, copy));
 #else
-               drop_paths_part_two (paths, when.frame, cy, copy);
+               drop_paths_part_two (paths, when.sample, cy, copy);
 #endif
        }
 
@@ -569,7 +574,7 @@ Editor::maybe_autoscroll (bool allow_horiz, bool allow_vert, bool from_headers)
 
        toplevel->get_window()->get_pointer (x, y, mask);
 
-       if ((allow_horiz && ((x < scrolling_boundary.x0 && leftmost_frame > 0) || x >= scrolling_boundary.x1)) ||
+       if ((allow_horiz && ((x < scrolling_boundary.x0 && _leftmost_sample > 0) || x >= scrolling_boundary.x1)) ||
            (allow_vert && ((y < scrolling_boundary.y0 && vertical_adjustment.get_value() > 0)|| y >= scrolling_boundary.y1))) {
                start_canvas_autoscroll (allow_horiz, allow_vert, scrolling_boundary);
        }
@@ -581,22 +586,27 @@ Editor::autoscroll_active () const
        return autoscroll_connection.connected ();
 }
 
-std::pair <framepos_t,framepos_t>
-Editor::session_gui_extents () const
+std::pair <samplepos_t,samplepos_t>
+Editor::session_gui_extents (bool use_extra) const
 {
-       framecnt_t session_extent_start = _session->current_start_frame();
-       framecnt_t session_extent_end = _session->current_end_frame();
+       if (!_session) {
+               return std::pair <samplepos_t,samplepos_t>(max_samplepos,0);
+       }
+
+       samplecnt_t session_extent_start = _session->current_start_sample();
+       samplecnt_t session_extent_end = _session->current_end_sample();
 
-       //calculate the extents of all regions in every playlist
-       //NOTE:  we should listen to playlists, and cache these values so we don't calculate them every time.
+       /* calculate the extents of all regions in every playlist
+        * NOTE: we should listen to playlists, and cache these values so we don't calculate them every time.
+        */
        {
                boost::shared_ptr<RouteList> rl = _session->get_routes();
                for (RouteList::iterator r = rl->begin(); r != rl->end(); ++r) {
                        boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> (*r);
                        if (tr) {
                                boost::shared_ptr<Playlist> pl = tr->playlist();
-                               if ( pl && !pl->all_regions_empty() ) {
-                                       pair<framepos_t, framepos_t> e;
+                               if (pl && !pl->all_regions_empty()) {
+                                       pair<samplepos_t, samplepos_t> e;
                                        e = pl->get_extent();
                                        if (e.first < session_extent_start) {
                                                session_extent_start = e.first;
@@ -609,14 +619,24 @@ Editor::session_gui_extents () const
                }
        }
 
-       //ToDo: also incorporate automation regions (in case the session has no audio/midi but is just used for automating plugins or the like)
+       /* ToDo: also incorporate automation regions (in case the session has no audio/midi but is just used for automating plugins or the like) */
 
-       //if all else fails, give us 2 minutes
-       framecnt_t const min_length = _session->nominal_frame_rate()*60*2;
-       if ( session_extent_end < min_length )
-               session_extent_end = min_length;
-       
-       std::pair <framepos_t,framepos_t> ret (session_extent_start, session_extent_end);
+       /* add additional time to the ui extents (user-defined in config) */
+       if (use_extra) {
+               samplecnt_t const extra = UIConfiguration::instance().get_extra_ui_extents_time() * 60 * _session->nominal_sample_rate();
+               session_extent_end += extra;
+               session_extent_start -= extra;
+       }
+
+       /* range-check */
+       if (session_extent_end > max_samplepos) {
+               session_extent_end = max_samplepos;
+       }
+       if (session_extent_start < 0) {
+               session_extent_start = 0;
+       }
+
+       std::pair <samplepos_t,samplepos_t> ret (session_extent_start, session_extent_end);
        return ret;
 }
 
@@ -625,7 +645,7 @@ Editor::autoscroll_canvas ()
 {
        int x, y;
        Gdk::ModifierType mask;
-       frameoffset_t dx = 0;
+       sampleoffset_t dx = 0;
        bool no_stop = false;
        Gtk::Window* toplevel = dynamic_cast<Gtk::Window*>(contents().get_toplevel());
 
@@ -640,7 +660,7 @@ Editor::autoscroll_canvas ()
 
        if (autoscroll_horizontal_allowed) {
 
-               framepos_t new_frame = leftmost_frame;
+               samplepos_t new_sample = _leftmost_sample;
 
                /* horizontal */
 
@@ -651,13 +671,13 @@ Editor::autoscroll_canvas ()
                        dx += 10 + (2 * (autoscroll_cnt/2));
 
                        dx = pixel_to_sample (dx);
-                       
-                       dx /= 10;  //ToDo:  make a config variable for scroll speed  zoom-behavior-tweaks
 
-                       if (leftmost_frame < max_framepos - dx) {
-                               new_frame = leftmost_frame + dx;
+                       dx *= UIConfiguration::instance().get_draggable_playhead_speed();
+
+                       if (_leftmost_sample < max_samplepos - dx) {
+                               new_sample = _leftmost_sample + dx;
                        } else {
-                               new_frame = max_framepos;
+                               new_sample = max_samplepos;
                        }
 
                        no_stop = true;
@@ -669,19 +689,19 @@ Editor::autoscroll_canvas ()
 
                        dx = pixel_to_sample (dx);
 
-                       dx /= 10;  //ToDo:  make a config variable for scroll speed  zoom-behavior-tweaks
+                       dx *= UIConfiguration::instance().get_draggable_playhead_speed();
 
-                       if (leftmost_frame >= dx) {
-                               new_frame = leftmost_frame - dx;
+                       if (_leftmost_sample >= dx) {
+                               new_sample = _leftmost_sample - dx;
                        } else {
-                               new_frame = 0;
+                               new_sample = 0;
                        }
 
                        no_stop = true;
                }
 
-               if (new_frame != leftmost_frame) {
-                       vc.time_origin = new_frame;
+               if (new_sample != _leftmost_sample) {
+                       vc.time_origin = new_sample;
                        vc.add (VisualChange::TimeOrigin);
                }
        }
@@ -955,7 +975,7 @@ Editor::set_horizontal_position (double p)
 {
        horizontal_adjustment.set_value (p);
 
-       leftmost_frame = (framepos_t) floor (p * samples_per_pixel);
+       _leftmost_sample = (samplepos_t) floor (p * samples_per_pixel);
 }
 
 void
@@ -1028,7 +1048,7 @@ Editor::color_handler()
        _track_canvas->queue_draw ();
 
 /*
-       redisplay_tempo (true);
+       redisplay_grid (true);
 
        if (_session)
              _session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
@@ -1038,7 +1058,7 @@ Editor::color_handler()
 double
 Editor::horizontal_position () const
 {
-       return sample_to_pixel (leftmost_frame);
+       return sample_to_pixel (_leftmost_sample);
 }
 
 bool
@@ -1132,26 +1152,6 @@ Editor::pop_canvas_cursor ()
        }
 }
 
-Gdk::Cursor*
-Editor::which_grabber_cursor () const
-{
-       Gdk::Cursor* c = _cursors->grabber;
-
-       switch (_edit_point) {
-       case EditAtMouse:
-               c = _cursors->grabber_edit_point;
-               break;
-       default:
-               boost::shared_ptr<Movable> m = _movable.lock();
-               if (m && m->locked()) {
-                       c = _cursors->speaker;
-               }
-               break;
-       }
-
-       return c;
-}
-
 Gdk::Cursor*
 Editor::which_trim_cursor (bool left) const
 {
@@ -1251,7 +1251,7 @@ Editor::which_track_cursor () const
        switch (_join_object_range_state) {
        case JOIN_OBJECT_RANGE_NONE:
        case JOIN_OBJECT_RANGE_OBJECT:
-               cursor = which_grabber_cursor ();
+               cursor = _cursors->grabber;
                break;
        case JOIN_OBJECT_RANGE_RANGE:
                cursor = _cursors->selector;
@@ -1298,14 +1298,7 @@ Editor::which_canvas_cursor(ItemType type) const
                        cursor = which_track_cursor ();
                        break;
                case PlayheadCursorItem:
-                       switch (_edit_point) {
-                       case EditAtMouse:
-                               cursor = _cursors->grabber_edit_point;
-                               break;
-                       default:
-                               cursor = _cursors->grabber;
-                               break;
-                       }
+                       cursor = _cursors->grabber;
                        break;
                case SelectionItem:
                        cursor = _cursors->selector;
@@ -1347,13 +1340,13 @@ Editor::which_canvas_cursor(ItemType type) const
                        cursor = _cursors->cross_hair;
                        break;
                case LeftFrameHandle:
-                       if ( effective_mouse_mode() == MouseObject )  // (smart mode): if the user is in the btm half, show the trim cursor
+                       if (effective_mouse_mode() == MouseObject) // (smart mode): if the user is in the btm half, show the trim cursor
                                cursor = which_trim_cursor (true);
                        else
-                               cursor = _cursors->selector;  // (smart mode): in the top half, just show the selection (range) cursor
+                               cursor = _cursors->selector; // (smart mode): in the top half, just show the selection (range) cursor
                        break;
                case RightFrameHandle:
-                       if ( effective_mouse_mode() == MouseObject )  //see above
+                       if (effective_mouse_mode() == MouseObject) // see above
                                cursor = which_trim_cursor (false);
                        else
                                cursor = _cursors->selector;
@@ -1415,7 +1408,7 @@ Editor::which_canvas_cursor(ItemType type) const
        case VideoBarItem:
        case TransportMarkerBarItem:
        case DropZoneItem:
-               cursor = which_grabber_cursor();
+               cursor = _cursors->grabber;
                break;
 
        default: