diff options
| author | Paul Davis <paul@linuxaudiosystems.com> | 2015-02-12 14:28:44 -0500 |
|---|---|---|
| committer | Paul Davis <paul@linuxaudiosystems.com> | 2015-02-13 16:21:57 -0500 |
| commit | 456374c99564f7e1eefcf8572e6180ee01ef9b27 (patch) | |
| tree | 21091e9c1df089eb043f1309bb8615812aa67768 /gtk2_ardour/editor_drag.cc | |
| parent | 994dff91a263b038b3d5990e727b93d0dbdb9d9c (diff) | |
implement axis-limited dragging
Diffstat (limited to 'gtk2_ardour/editor_drag.cc')
| -rw-r--r-- | gtk2_ardour/editor_drag.cc | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/gtk2_ardour/editor_drag.cc b/gtk2_ardour/editor_drag.cc index 7747f3fffb..497baf5896 100644 --- a/gtk2_ardour/editor_drag.cc +++ b/gtk2_ardour/editor_drag.cc @@ -394,8 +394,6 @@ Drag::motion_handler (GdkEvent* event, bool from_autoscroll) } else { _initially_vertical = false; } - - cerr << "IV = " << _initially_vertical << endl; } if (!from_autoscroll) { @@ -556,6 +554,7 @@ RegionMotionDrag::RegionMotionDrag (Editor* e, ArdourCanvas::Item* i, RegionView , _total_x_delta (0) , _last_pointer_time_axis_view (0) , _last_pointer_layer (0) + , _single_axis (false) { DEBUG_TRACE (DEBUG::Drags, "New RegionMotionDrag\n"); } @@ -565,6 +564,10 @@ RegionMotionDrag::start_grab (GdkEvent* event, Gdk::Cursor* cursor) { Drag::start_grab (event, cursor); + if (Keyboard::modifier_state_contains (event->button.state, Keyboard::TertiaryModifier)) { + _single_axis = true; + } + show_verbose_cursor_time (_last_frame_position); pair<TimeAxisView*, double> const tv = _editor->trackview_by_y_position (current_pointer_y ()); @@ -639,6 +642,10 @@ RegionMotionDrag::compute_x_delta (GdkEvent const * event, framepos_t* pending_r bool RegionMotionDrag::y_movement_allowed (int delta_track, double delta_layer) const { + if (_y_constrained) { + return false; + } + for (list<DraggingView>::const_iterator i = _views.begin(); i != _views.end(); ++i) { int const n = i->time_axis_view + delta_track; if (n < 0 || n >= int (_time_axis_views.size())) { @@ -683,6 +690,18 @@ RegionMotionDrag::motion (GdkEvent* event, bool first_move) pair<TimeAxisView*, double> const r = _editor->trackview_by_y_position (current_pointer_y ()); TimeAxisView* tv = r.first; + if (first_move) { + if (_single_axis) { + if (initially_vertical()) { + _y_constrained = false; + _x_constrained = true; + } else { + _y_constrained = true; + _x_constrained = false; + } + } + } + if (tv && tv->view()) { double layer = r.second; @@ -1002,7 +1021,7 @@ RegionMoveDrag::finished (GdkEvent* ev, bool movement_occurred) bool const changed_position = (_last_frame_position != _primary->region()->position()); bool const changed_tracks = (_time_axis_views[_views.front().time_axis_view] != &_views.front().view->get_time_axis_view()); framecnt_t const drag_delta = _primary->region()->position() - _last_frame_position; - + if (_copy) { finished_copy ( |