Removed from TkGUI

tkgui_removed.py

class CollapseFrame(Frame):
  def __init__(self, parent, expanded_text ="Collapse <<", collapsed_text ="Expand >>"): 
      super().__init__(parent) 
      self.parent = parent 
      self._expanded_text = expanded_text 
      self._collapsed_text = collapsed_text 
      self.columnconfigure(1, weight = 1) #grow in grid  
      self._variable = BooleanVar(value=False)

      self._button = Button(self, command = self.toggle)
      self._button.grid(row = 0, column = 0)

      self._separator = Separator(self, orient=HORIZONTAL)
      self._separator.grid(row = 0, column = 1, sticky ="we") 

      self.frame = Frame(self) 
      self._activate()

  def _activate(self): 
    def setText(text): self._button["text"] = text
    if not self._variable.get():
      self.frame.grid_forget()
      setText(self._collapsed_text)
    else:
      # increasing the frame area, reside new widgets
      self.frame.grid(row = 1, column = 0, columnspan = 2) 
      setText(self._expanded_text) 

  def toggle(self):
    self._variable.set(not self._variable.get()) 
    self._activate()

class TkGUI:
   class SeparatorFrame(Frame):
    def __init__(self, parent, text, fill, *args, **kwargs):
      self.text,self.fill = text,fill
      super().__init__(parent, *args, **kwargs)
    def pack(self, *args, **kwargs):
      if self.text != None: Label(self, text=self.text).pack()
      del kwargs["fill"]
      super().pack(*args, fill=self.fill, expand=(self.fill == BOTH), **kwargs)

  def separator(p, text=None, fill=X, height=2, bg="white", relief=FLAT):
    extras = {} if useTheme else {"bg":bg, "bd":1}
    return TkGUI.SeparatorFrame(p, text, fill, height=height, relief=relief, **extras)