tkgui.py 文件源码

def _create_canvas(self, window):
        # Configure canvas
        canvas = Canvas(window)
        hsb = ttk.Scrollbar(window, orient="h", command=canvas.xview)
        vsb = ttk.Scrollbar(window, orient="v", command=canvas.yview)
        canvas.configure(yscrollcommand=vsb.set, xscrollcommand=hsb.set)

        canvas.grid(sticky="nsew")
        hsb.grid(row=1, column=0, stick="ew")
        vsb.grid(row=0, column=1, sticky="ns")

        window.grid_rowconfigure(0, weight=1)
        window.grid_columnconfigure(0, weight=1)

        canvas.configure(scrollregion=(0, 0, 1250, 10000))
        canvas.bind('<Configure>', lambda event,
                    canvas=canvas: self._resize_canvas(event, canvas))
        canvas.bind_all("<Button-4>", lambda event, count=-1,
                        canvas=canvas: self._on_mousewheel(event, canvas, count))
        canvas.bind_all("<Button-5>", lambda event, count=1,
                        canvas=canvas: self._on_mousewheel(event, canvas, count))
        canvas.bind_all("<MouseWheel>", lambda event, count=1,
                        canvas=canvas: self._on_mousewheel(event, canvas, count))

        return canvas