enhance context menu, draw object center, recenter if image out of view

ModuleFixTarget.py

@@ -224,15 +224,14 @@ class WndFixTarget(QWidget):
 
     tree.setContextMenuPolicy(Qt.ActionsContextMenu)
 
-    act = QAction("delete", self)
-    act.triggered.connect(self.tree_ctx_delete)
-    tree.addAction(act)
-
     act = QAction("center in view", self)
     act.triggered.connect(self.tree_ctx_center)
     tree.addAction(act)
 
-    #contextMenuEvent
+    act = QAction("delete", self)
+    act.triggered.connect(self.tree_ctx_delete)
+    tree.addAction(act)
+
   def tree_get_path(self):
     path=[]
     it=self._tree.currentItem()
@@ -277,10 +276,13 @@ class WndFixTarget(QWidget):
         vb=wnd.vb
         grp=wnd._goTracked
         go=grp.childItems()[path[0]]
-        vb.autoRange(items=(go,))
-        #r1=vb.viewRect()
-        #r2=vb.itemBoundingRect(go)
-        #if not r1.intersects(r2):
+        #vb.autoRange(items=(go,))
+        r1=vb.viewRect()
+        r2=vb.itemBoundingRect(go)
+        #r=vb.viewRect()
+        vb.setRange(rect=r2)
+        r1.translate(r2.center()-r1.center())
+        vb.setRange(r1)
 
   def load_file(self, filename=None):
     app = QApplication.instance()