def createWidgets(self, title):
"""Initialize the frame's widgets"""
# Show or not
self.title = tk.Label(self, text=str(title))
self.title.grid(row=0, column=0, sticky=tk.N+tk.W)
self.showButton = tk.Button(self, text='Show/Hide', command=self.showHide,
state=tk.DISABLED)
self.showButton.grid(row=0, column=1, sticky=tk.N+tk.E)
self.scrollable = VerticalScrolledFrame(self, border=2, relief=tk.GROOVE)
self.mainFrame = self.scrollable.interior
def deleteMainFrame(self): """Deletes the tree""" self.scrollable.destroy() self.scrollable = VerticalScrolledFrame(self, border=2, relief=tk.GROOVE) self.mainFrame = self.scrollable.interior
class BaseWidget(tk.Canvas):
"""The base class for the category and company/brand widgets"""
HIDDEN = -1
WAITING = 0
EDITING = 1
ADDING = 2
DELETING = 3
def __init__(self, title, master=None):
tk.Canvas.__init__(self, master)
self.createWidgets(title)
self.editState = self.HIDDEN
def createWidgets(self, title):
"""Initialize the frame's widgets"""
# Show or not
self.title = tk.Label(self, text=str(title))
self.title.grid(row=0, column=0, sticky=tk.N+tk.W)
self.showButton = tk.Button(self, text='Show/Hide', command=self.showHide,
state=tk.DISABLED)
self.showButton.grid(row=0, column=1, sticky=tk.N+tk.E)
self.scrollable = VerticalScrolledFrame(self, border=2, relief=tk.GROOVE)
self.mainFrame = self.scrollable.interior
def activate(self, db):
"""Enables Show/Hide Button"""
if db:
self.db = db
self.showButton.config(state=tk.NORMAL)
self.createButtons()
def deactivate(self):
"""Hides the widget and disables button"""
self.db = None
self.showButton.config(state=tk.DISABLED)
self.mainFrame.grid_forget()
self.editState = self.HIDDEN
self.deleteMainFrame()
def showHide(self):
"""Show/Hide the whole widget"""
if self.editState != self.HIDDEN:
self.scrollable.grid_forget()
self.editState = self.HIDDEN
else:
self.scrollable.grid(columnspan=2, sticky=tk.N+tk.W)
self.editState = self.WAITING
def createButtons(self):
"""This is where you create the buttons, throws error if not overwritten"""
raise BaseWidgetException("createButtons needs to be overwritten")
def updateMainFrame(self):
"""Updates the tree and the labels"""
self.deleteMainFrame()
self.scrollable.grid(columnspan=2, sticky=tk.N+tk.W)
self.createButtons()
def deleteMainFrame(self):
"""Deletes the tree"""
self.scrollable.destroy()
self.scrollable = VerticalScrolledFrame(self, border=2, relief=tk.GROOVE)
self.mainFrame = self.scrollable.interior
