add usb_direct for shuttle, revised shuttle again, titler tweak, transportque design...

[goodguy/cinelerra.git] / cinelerra-5.1 / cinelerra / zwindow.C

diff --git a/cinelerra-5.1/cinelerra/zwindow.C b/cinelerra-5.1/cinelerra/zwindow.C
index 6508b9e457673f05853e4bc9258d15cfdc8db445..a6f6d73f8119c29120291817e891178de5ac86cc 100644 (file)
--- a/cinelerra-5.1/cinelerra/zwindow.C
+++ b/cinelerra-5.1/cinelerra/zwindow.C
@@ -218,12 +218,12 @@ void ZWindow::handle_close_event(int result)
 
 void ZWindow::change_source(EDL *edl)
 {
-       if( this->edl && edl != this->edl )
+       if( this->edl == edl ) return;
+       if( !edl || !this->edl || this->edl->equivalent_output(edl) >= 0 )
+               zgui->playback_engine->refresh_frame(CHANGE_ALL, edl);
+       if( this->edl )
                this->edl->remove_user();
        this->edl = edl;
-       if( edl != 0 ) {
-               zgui->playback_engine->refresh_frame(CHANGE_ALL, edl);
-       }
 }
 
 void ZWindow::stop_playback(int wait)