+ break;
+ }
+
+ case Evoral::OverlapStart: {
+ if (end > region->position() + region->fade_in()->back()->when)
+ fade_in = region->fade_in()->back()->when; //end is after fade-in, preserve the fade-in
+ if (end > region->last_frame() - region->fade_out()->back()->when)
+ fade_out = region->fade_out()->back()->when - ( region->last_frame() - end ); //end is inside the fadeout, preserve the fades endpoint
+ break;
+ }
+
+ case Evoral::OverlapEnd: {
+ if (start < region->last_frame() - region->fade_out()->back()->when) //start is before fade-out, preserve the fadeout
+ fade_out = region->fade_out()->back()->when;
+
+ if (start < region->position() + region->fade_in()->back()->when)
+ fade_in = region->fade_in()->back()->when - (start - region->position()); //end is inside the fade-in, preserve the fade-in endpoint
+ break;
+ }
+
+ case Evoral::OverlapExternal:
+ fade_in = region->fade_in()->back()->when;
+ fade_out = region->fade_out()->back()->when;
+ break;