New perl callback to force reloading of 3d scene after Purging volumes are changed

After the changes in previous commit, the 3D scene must be reloaded after the wipe tower
is invalidated. This can mostly be done on the C++ side, but reloading after Purging volumes
are changed required this C++ -> Perl call

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/Slic3r/GUI/Plater.pm b/lib/Slic3r/GUI/Plater.pm
index 719f98a48..3bfd57bb3 100644
--- a/lib/Slic3r/GUI/Plater.pm
+++ b/lib/Slic3r/GUI/Plater.pm
@@ -144,6 +144,11 @@ sub new {
         my ($angle_z) = @_;
         $self->rotate(rad2deg($angle_z), Z, 'absolute');
     };
+
+    # callback to call schedule_background_process
+    my $on_request_update = sub {
+        $self->schedule_background_process;
+    };
     
     # callback to update object's geometry info while using gizmos
     my $on_update_geometry_info = sub {
@@ -202,6 +207,8 @@ sub new {
 
         Slic3r::GUI::_3DScene::register_on_viewport_changed_callback($self->{canvas3D}, sub { Slic3r::GUI::_3DScene::set_viewport_from_scene($self->{preview3D}->canvas, $self->{canvas3D}); });
     }
+
+    Slic3r::_GUI::register_on_request_update_callback($on_request_update);
     
     # Initialize 2D preview canvas
     $self->{canvas} = Slic3r::GUI::Plater::2D->new($self->{preview_notebook}, wxDefaultSize, $self->{objects}, $self->{model}, $self->{config});