Open new viewer

glue/plugins/tools/pv_slicer/qt/pv_slicer.py

@@ -7,6 +7,7 @@
 from glue.viewers.common.qt.toolbar_mode import PathMode
 from glue.config import viewer_tool
 from glue.viewers.common.qt.toolbar_mode import ToolbarModeBase
+from glue.viewers.image.qt import ImageViewer
 
 
 class PVSliceData(Data):
@@ -75,12 +76,25 @@ def _extract_callback(self, mode):
 
         selected = self.viewer.session.application.selected_layers()
 
-        print(selected)
-
         if len(selected) == 1 and isinstance(selected[0], PVSliceData):
             selected[0].update_values_from_data(data)
+            data = selected[0]
+            for tab in self.viewer.session.application.viewers:
+                for viewer in tab:
+                    if data in viewer._layer_artist_container:
+                        open_viewer = False
+                        break
+                if not open_viewer:
+                    break
+            else:
+                open_viewer = True
         else:
             self.viewer.session.data_collection.append(data)
+            open_viewer = True
+
+        print("OPEN VIEWER", open_viewer)
+        if open_viewer:
+            self.viewer.session.application.new_data_viewer(ImageViewer, data=data)
 
 
 @viewer_tool

glue/viewers/image/qt/__init__.py

@@ -1,2 +1 @@
 from .data_viewer import ImageViewer  # noqa
-from .standalone_image_viewer import StandaloneImageViewer  # noqa