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rework RegionMotionDrag so that we can actually drag a region to zero.

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- did this ever work?
This commit is contained in:
nick_m 2017-01-31 03:06:13 +11:00
parent b04f89be51
commit d38dc86380
1 changed files with 6 additions and 10 deletions
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16
gtk2_ardour/editor_drag.cc
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@ -679,23 +679,19 @@ RegionMotionDrag::compute_x_delta (GdkEvent const * event, MusicFrame* pending_r
if ((pending_region_position->frame != _last_position.frame) && x_move_allowed) {
/* x movement since last time (in pixels) */
dx = (static_cast<double> (pending_region_position->frame) - _last_position.frame) / _editor->samples_per_pixel;
dx = _editor->sample_to_pixel_unrounded (pending_region_position->frame - _last_position.frame);
/* total x movement */
framecnt_t total_dx = pending_region_position->frame;
if (regions_came_from_canvas()) {
total_dx = total_dx - grab_frame ();
}
framecnt_t total_dx = _editor->pixel_to_sample (_total_x_delta + dx);
/* check that no regions have gone off the start of the session */
for (list<DraggingView>::const_iterator i = _views.begin(); i != _views.end(); ++i) {
if ((i->view->region()->position() + total_dx) < 0) {
dx = 0;
*pending_region_position = _last_position;
frameoffset_t const off = i->view->region()->position() + total_dx;
if (off < 0) {
dx = dx - _editor->sample_to_pixel_unrounded (off);
*pending_region_position = MusicFrame (pending_region_position->frame - off, 0);
break;
}
}
}
return dx;