a set of inter-related subtle changes to get vertical autoscrolling to work, or at least work better.
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e426c603b6
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c30bda5173
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@ -493,18 +493,46 @@ Editor::drop_paths (const RefPtr<Gdk::DragContext>& context,
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void
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Editor::maybe_autoscroll (bool allow_horiz, bool allow_vert, bool from_headers)
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{
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if (!Config->get_autoscroll_editor ()) {
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if (!Config->get_autoscroll_editor () || autoscroll_active ()) {
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return;
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}
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/* define a rectangular boundary for scrolling. If the mouse moves
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* outside of this area and/or continue to be outside of this area,
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* then we will continuously auto-scroll the canvas in the appropriate
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* direction(s)
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*
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* the boundary is defined in coordinates relative to the toplevel
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* window since that is what we're going to call ::get_pointer() on
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* during autoscrolling to determine if we're still outside the
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* boundary or not.
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*/
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ArdourCanvas::Rect scrolling_boundary;
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Gtk::Allocation alloc;
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int cx, cy;
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if (from_headers) {
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alloc = controls_layout.get_allocation ();
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} else {
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} else {
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alloc = _track_canvas_viewport->get_allocation ();
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cx = alloc.get_x();
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cy = alloc.get_y();
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/* reduce height by the height of the timebars, which happens
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to correspond to the position of the hv_scroll_group.
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*/
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alloc.set_height (alloc.get_height() - hv_scroll_group->position().y);
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alloc.set_y (alloc.get_y() + hv_scroll_group->position().y);
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/* now reduce it again so that we start autoscrolling before we
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* move off the top or bottom of the canvas
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*/
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alloc.set_height (alloc.get_height() - 20);
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alloc.set_y (alloc.get_y() + 10);
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/* the effective width of the autoscroll boundary so
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that we start scrolling before we hit the edge.
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@ -517,11 +545,10 @@ Editor::maybe_autoscroll (bool allow_horiz, bool allow_vert, bool from_headers)
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alloc.set_width (alloc.get_width() - 20);
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alloc.set_x (alloc.get_x() + 10);
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}
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}
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scrolling_boundary = ArdourCanvas::Rect (alloc.get_x(), alloc.get_y(),
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alloc.get_x() + alloc.get_width(),
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alloc.get_y() + alloc.get_height());
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scrolling_boundary = ArdourCanvas::Rect (alloc.get_x(), alloc.get_y(), alloc.get_x() + alloc.get_width(), alloc.get_y() + alloc.get_height());
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int x, y;
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Gdk::ModifierType mask;
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@ -552,6 +579,7 @@ Editor::autoscroll_canvas ()
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get_window()->get_pointer (x, y, mask);
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VisualChange vc;
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bool vertical_motion = false;
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if (autoscroll_horizontal_allowed) {
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@ -600,7 +628,7 @@ Editor::autoscroll_canvas ()
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if (autoscroll_vertical_allowed) {
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// const double vertical_pos = vertical_adjustment.get_value();
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const int speed_factor = 20;
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const int speed_factor = 10;
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/* vertical */
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@ -610,20 +638,21 @@ Editor::autoscroll_canvas ()
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if (autoscroll_cnt && (autoscroll_cnt % speed_factor == 0)) {
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y_motion = scroll_up_one_track ();
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vertical_motion = true;
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}
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} else if (y > autoscroll_boundary.y1) {
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if (autoscroll_cnt && (autoscroll_cnt % speed_factor == 0)) {
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y_motion = scroll_down_one_track ();
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vertical_motion = true;
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}
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}
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no_stop = true;
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}
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if (vc.pending) {
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if (vc.pending || vertical_motion) {
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/* change horizontal first */
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@ -642,26 +671,33 @@ Editor::autoscroll_canvas ()
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/* the motion handler expects events in canvas coordinate space */
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/* first convert from Editor window coordinates to canvas
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* window coordinates
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/* we asked for the mouse position above (::get_pointer()) via
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* our own top level window (we being the Editor). Convert into
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* coordinates within the canvas window.
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*/
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int cx;
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int cy;
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/* clamp x and y to remain within the visible area */
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translate_coordinates (*_track_canvas, x, y, cx, cy);
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x = min (max ((ArdourCanvas::Coord) x, autoscroll_boundary.x0), autoscroll_boundary.x1);
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y = min (max ((ArdourCanvas::Coord) y, autoscroll_boundary.y0), autoscroll_boundary.y1);
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/* clamp x and y to remain within the autoscroll boundary,
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* which is defined in window coordinates
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*/
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translate_coordinates (*_track_canvas_viewport, x, y, cx, cy);
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x = min (max ((ArdourCanvas::Coord) cx, autoscroll_boundary.x0), autoscroll_boundary.x1);
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y = min (max ((ArdourCanvas::Coord) cy, autoscroll_boundary.y0), autoscroll_boundary.y1);
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/* now convert from Editor window coordinates to canvas
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* window coordinates
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*/
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ArdourCanvas::Duple d = _track_canvas->window_to_canvas (ArdourCanvas::Duple (cx, cy));
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ev.x = d.x;
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ev.y = d.y;
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motion_handler (0, (GdkEvent*) &ev, true);
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} else if (no_stop) {
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/* not changing visual state but pointer is outside the scrolling boundary
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@ -701,7 +737,7 @@ Editor::autoscroll_canvas ()
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ev.y = d.y;
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motion_handler (0, (GdkEvent*) &ev, true);
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} else {
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stop_canvas_autoscroll ();
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return false;
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@ -177,6 +177,12 @@ DragManager::motion_handler (GdkEvent* e, bool from_autoscroll)
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{
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bool r = false;
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/* calling this implies that we expect the event to have canvas
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* coordinates
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*
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* Can we guarantee that this is true?
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*/
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_current_pointer_frame = _editor->canvas_event_sample (e, &_current_pointer_x, &_current_pointer_y);
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for (list<Drag*>::iterator i = _drags.begin(); i != _drags.end(); ++i) {
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@ -193,24 +199,6 @@ DragManager::motion_handler (GdkEvent* e, bool from_autoscroll)
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return r;
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}
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bool
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DragManager::window_motion_handler (GdkEvent* e, bool from_autoscroll)
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{
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bool r = false;
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_current_pointer_frame = _editor->canvas_event_sample (e, &_current_pointer_x, &_current_pointer_y);
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for (list<Drag*>::iterator i = _drags.begin(); i != _drags.end(); ++i) {
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bool const t = (*i)->motion_handler (e, from_autoscroll);
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if (t) {
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r = true;
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}
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}
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return r;
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}
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bool
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DragManager::have_item (ArdourCanvas::Item* i) const
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{
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@ -398,6 +386,7 @@ Drag::motion_handler (GdkEvent* event, bool from_autoscroll)
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return true;
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}
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}
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return false;
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}
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@ -711,7 +700,7 @@ RegionMotionDrag::motion (GdkEvent* event, bool first_move)
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delta_time_axis_view = current_pointer_time_axis_view - _last_pointer_time_axis_view;
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delta_layer = current_pointer_layer - _last_pointer_layer;
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}
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}
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/* Work out the change in x */
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framepos_t pending_region_position;
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@ -1932,8 +1921,6 @@ TrimDrag::start_grab (GdkEvent* event, Gdk::Cursor*)
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framepos_t const pf = adjusted_current_frame (event);
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cerr << "Button state = " << hex << event->button.state << dec << endl;
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if (Keyboard::modifier_state_equals (event->button.state, Keyboard::PrimaryModifier)) {
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/* Move the contents of the region around without changing the region bounds */
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_operation = ContentsTrim;
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@ -1997,8 +1984,6 @@ TrimDrag::motion (GdkEvent* event, bool first_move)
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pair<set<boost::shared_ptr<Playlist> >::iterator,bool> insert_result;
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frameoffset_t frame_delta = 0;
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cerr << "trim drag @ " << this << " motion\n";
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if (tv && tv->is_track()) {
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speed = tv->track()->speed();
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}
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@ -54,7 +54,6 @@ public:
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~DragManager ();
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bool motion_handler (GdkEvent *, bool);
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bool window_motion_handler (GdkEvent *, bool);
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void abort ();
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void add (Drag *);
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@ -1334,20 +1334,24 @@ Editor::scroll_down_one_track ()
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{
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TrackViewList::reverse_iterator next = track_views.rend();
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std::pair<TimeAxisView*,double> res;
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const double bottom_of_trackviews = vertical_adjustment.get_value() + vertical_adjustment.get_page_size() - 1;
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for (TrackViewList::reverse_iterator t = track_views.rbegin(); t != track_views.rend(); ++t) {
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if ((*t)->hidden()) {
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continue;
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}
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/* find the trackview at the bottom of the trackview group */
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res = (*t)->covers_y_position (_visible_canvas_height);
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/* If this is the bottom visible trackview, we want to display
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the next one.
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*/
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res = (*t)->covers_y_position (bottom_of_trackviews);
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if (res.first) {
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break;
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}
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next = t;
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++next; // moves "next" towards the "front" since it is a reverse iterator
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}
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/* move to the track below the first one that covers the */
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@ -1363,7 +1367,7 @@ Editor::scroll_down_one_track ()
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bool
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Editor::scroll_up_one_track ()
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{
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// double vertical_pos = vertical_adjustment.get_value ();
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double vertical_pos = vertical_adjustment.get_value ();
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TrackViewList::iterator prev = track_views.end();
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std::pair<TimeAxisView*,double> res;
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@ -1375,9 +1379,10 @@ Editor::scroll_up_one_track ()
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}
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/* find the trackview at the top of the trackview group */
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res = (*t)->covers_y_position (0);
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res = (*t)->covers_y_position (vertical_pos);
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if (res.first) {
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cerr << res.first->name() << " covers the top\n";
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break;
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}
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@ -5733,16 +5738,21 @@ Editor::select_prev_route()
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void
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Editor::ensure_track_visible(TimeAxisView *track)
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{
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if (track->hidden())
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if (track->hidden()) {
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return;
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}
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/* compute visible area of trackview group, as offsets from top of
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* trackview group.
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*/
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double const current_view_min_y = vertical_adjustment.get_value();
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double const current_view_max_y = vertical_adjustment.get_value() + vertical_adjustment.get_page_size();
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double const current_view_max_y = current_view_min_y + vertical_adjustment.get_page_size();
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double const track_min_y = track->y_position ();
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double const track_max_y = track->y_position () + track->effective_height ();
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if (track_min_y >= current_view_min_y &&
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if (track_min_y > current_view_min_y &&
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track_max_y <= current_view_max_y) {
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return;
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}
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