Fix bug #62 - Release resources with 'close()'

TermTk/TTkLayouts/layout.py

@@ -257,6 +257,9 @@ class TTkLayout(TTkLayoutItem):
             if item.layoutItemType == TTkK.WidgetItem and \
                item.widget() == widget:
                 self.removeItem(item)
+                return
+            elif item.layoutItemType == TTkK.LayoutItem:
+                item.removeWidget(widget)
 
     def findBranchWidget(self, widget):
         for item in self._items:

TermTk/TTkWidgets/widget.py

@@ -570,6 +570,7 @@ class TTkWidget(TMouseEvents,TKeyEvents, TDragEvents):
             self._parent.rootLayout().removeWidget(self)
         TTkHelper.removeOverlayAndChild(self)
         self._parent = None
+        self.hide()
 
     @pyTTkSlot(bool)
     def setVisible(self, visible):