def _createDataTree(self, parent, bgColor):
"""Create a tree on the left panel to store how
many object are from each type and the hierarchy.
"""
self.style.configure("W.Treeview",
background=Color.LIGHT_GREY_COLOR,
borderwidth=0)
self.dataTree = Tree(parent, show='tree', style='W.Treeview')
self.dataTree.column('#0', minwidth=300)
self.dataTree.tag_configure('protocol',
image=self.getImage('python_file.gif'))
self.dataTree.tag_configure('protocol_base',
image=self.getImage('class_obj.gif'))
f = tkFont.Font(family='helvetica', size='10', weight='bold')
self.dataTree.tag_configure('non-empty', font=f)
self.dataTree.grid(row=0, column=0, sticky='news')
# bind click events
self.dataTree.tag_bind(DATA_TAG, '<Double-1>', self._dataItemClick)
self.dataTree.tag_bind(DATA_TAG, '<Return>', self._dataItemClick)
# Program automatic refresh
self.dataTree.after(3000, self._automaticRefreshData)
self._updateDataTree()
