tkinter_scroll.py

import tkinter as tk
from tkinter import ttk


class Scrollable(ttk.Frame):
    """
       Make a frame scrollable with scrollbar on the right.
       After adding or removing widgets to the scrollable frame,
       call the update() method to refresh the scrollable area.
    """

    def __init__(self, frame, width=16):

        scrollbar = tk.Scrollbar(frame, width=width)
        scrollbar.pack(side=tk.RIGHT, fill=tk.Y, expand=False)

        self.canvas = tk.Canvas(frame, bg='white',yscrollcommand=scrollbar.set)
        self.canvas.pack(side=tk.LEFT, fill=tk.BOTH, expand=True)

        scrollbar.config(command=self.canvas.yview)

        self.canvas.bind('<Configure>', self.__fill_canvas)

        # base class initialization
        tk.Frame.__init__(self, frame)

        # assign this obj (the inner frame) to the windows item of the canvas
        self.windows_item = self.canvas.create_window(
            0, 0, window=self, anchor=tk.NW)

    def __fill_canvas(self, event):
        "Enlarge the windows item to the canvas width"

        canvas_width = event.width
        self.canvas.itemconfig(self.windows_item, width=canvas_width)

    def update(self):
        "Update the canvas and the scrollregion"

        self.update_idletasks()
        self.canvas.config(scrollregion=self.canvas.bbox(self.windows_item))


class FullScreenApp(object):
    def __init__(self, master, **kwargs):
        self.master = master
        pad = 3
        self._geom = '200x200+0+0'
        master.geometry("{0}x{1}+0+0".format(master.winfo_screenwidth() -
                                             pad, master.winfo_screenheight() - pad))
        master.bind('<Escape>', self.toggle_geom)

    def toggle_geom(self, event):
        geom = self.master.winfo_geometry()
        print(geom, self._geom)
        self.master.geometry(self._geom)
        self._geom = geom

        # set a callback to handle when the window is closed
        self.root.wm_title("PhotoBooth")
        self.root.wm_protocol("WM_DELETE_WINDOW", self.onClose)

    def videoLoop(self):
        try:
            while not self.stopEvent.is_set():
                self.frame = self.vs.read()
                self.frame = imutils.resize(self.frame, width=300)
                image = cv2.cvtColor(self.frame, cv2.COLOR_BGR2RGB)
                image = Image.fromarray(image)
                image = ImageTk.PhotoImage(image)
                if self.panel is None:
                    self.panel = tki.Label(image=image)
                    self.panel.image = image
                    self.panel.pack(side="left", padx=10, pady=10)
                else:
                    self.panel.configure(image=image)
                    self.panel.image = image
        except RuntimeError as e:
            print("[INFO] caught a RuntimeError")

    def takeSnapshot(self):
        # grab the current timestamp and use it to construct the
        # output path
        ts = datetime.datetime.now()
        filename = "{}.jpg".format(ts.strftime("%Y-%m-%d_%H-%M-%S"))
        p = os.path.sep.join((self.outputPath, filename))

        # save the file
        cv2.imwrite(p, self.frame.copy())
        print("[INFO] saved {}".format(filename))

    def onClose(self):
        # set the stop event, cleanup the camera, and allow the rest of
        # the quit process to continue
        print("[INFO] closing...")
        self.stopEvent.set()
        self.vs.stop()
        self.root.quit()