Python Tkinter.Scrollbar() Examples

def _sb_canvas(self, root, expand='y', 
                   fill='both', side='bottom'):
        """
        Helper for __init__: construct a canvas with a scrollbar.
        """
        cframe =Tkinter.Frame(root, relief='sunk', border=2)
        cframe.pack(fill=fill, expand=expand, side=side)
        canvas = Tkinter.Canvas(cframe, background='#e0e0e0')
        
        # Give the canvas a scrollbar.
        sb = Tkinter.Scrollbar(cframe, orient='vertical')
        sb.pack(side='right', fill='y')
        canvas.pack(side='left', fill=fill, expand='yes')

        # Connect the scrollbars to the canvas.
        sb['command']= canvas.yview
        canvas['yscrollcommand'] = sb.set

        return (sb, canvas) 

def __init__(self, master, radios, font, changed, **kwargs):
                tk.Frame.__init__(self, master)

                self.master = master
                self.radios = radios
                self.font = font
                self.changed = changed

                self.scrollv = tk.Scrollbar(self, orient = "vertical")
                self.textbox = tk.Text(self, yscrollcommand = self.scrollv.set, **kwargs)
                self.scrollv.config(command = self.textbox.yview)
                # layout.
                self.scrollv.pack(side = "right", fill = "y")
                self.textbox.pack(side = "left", fill = "both", expand = True)
                # create radiobuttons.
                self.radiovar = tk.StringVar()
                self.radiovar.set('FILE')
                self.create() 

def __init__(self, parent):

        scrollbar = tk.Scrollbar(parent, orient=tk.VERTICAL)
        self.listbox = tk.Listbox(parent, yscrollcommand=scrollbar.set, selectmode=tk.EXTENDED)
        scrollbar.configure(command=self.listbox.yview)

        self.listbox.pack(side=tk.LEFT,fill=tk.BOTH, expand=1, pady=5)
        scrollbar.pack(side=tk.RIGHT, fill=tk.Y, pady=5) 

def __init__(self, master=None, **kw):
        self.frame = Frame(master)
        self.vbar = Scrollbar(self.frame)
        self.vbar.pack(side=RIGHT, fill=Y)

        kw.update({'yscrollcommand': self.vbar.set})
        Text.__init__(self, self.frame, **kw)
        self.pack(side=LEFT, fill=BOTH, expand=True)
        self.vbar['command'] = self.yview

        # Copy geometry methods of self.frame without overriding Text
        # methods -- hack!
        text_meths = vars(Text).keys()
        methods = vars(Pack).keys() + vars(Grid).keys() + vars(Place).keys()
        methods = set(methods).difference(text_meths)

        for m in methods:
            if m[0] != '_' and m != 'config' and m != 'configure':
                setattr(self, m, getattr(self.frame, m)) 

def __init__(self, master=None, **kw):
        self.frame = Frame(master)
        self.vbar = Scrollbar(self.frame)
        self.vbar.pack(side=RIGHT, fill=Y)

        kw.update({'yscrollcommand': self.vbar.set})
        Text.__init__(self, self.frame, **kw)
        self.pack(side=LEFT, fill=BOTH, expand=True)
        self.vbar['command'] = self.yview

        # Copy geometry methods of self.frame without overriding Text
        # methods -- hack!
        text_meths = vars(Text).keys()
        methods = vars(Pack).keys() + vars(Grid).keys() + vars(Place).keys()
        methods = set(methods).difference(text_meths)

        for m in methods:
            if m[0] != '_' and m != 'config' and m != 'configure':
                setattr(self, m, getattr(self.frame, m)) 

def __init__(self, master, width=500, height=350,
                                          canvwidth=600, canvheight=500):
        TK.Frame.__init__(self, master, width=width, height=height)
        self._rootwindow = self.winfo_toplevel()
        self.width, self.height = width, height
        self.canvwidth, self.canvheight = canvwidth, canvheight
        self.bg = "white"
        self._canvas = TK.Canvas(master, width=width, height=height,
                                 bg=self.bg, relief=TK.SUNKEN, borderwidth=2)
        self.hscroll = TK.Scrollbar(master, command=self._canvas.xview,
                                    orient=TK.HORIZONTAL)
        self.vscroll = TK.Scrollbar(master, command=self._canvas.yview)
        self._canvas.configure(xscrollcommand=self.hscroll.set,
                               yscrollcommand=self.vscroll.set)
        self.rowconfigure(0, weight=1, minsize=0)
        self.columnconfigure(0, weight=1, minsize=0)
        self._canvas.grid(padx=1, in_ = self, pady=1, row=0,
                column=0, rowspan=1, columnspan=1, sticky='news')
        self.vscroll.grid(padx=1, in_ = self, pady=1, row=0,
                column=1, rowspan=1, columnspan=1, sticky='news')
        self.hscroll.grid(padx=1, in_ = self, pady=1, row=1,
                column=0, rowspan=1, columnspan=1, sticky='news')
        self.reset()
        self._rootwindow.bind('<Configure>', self.onResize) 

def _sb_canvas(self, root, expand='y',
                   fill='both', side='bottom'):
        """
        Helper for __init__: construct a canvas with a scrollbar.
        """
        cframe =Tkinter.Frame(root, relief='sunk', border=2)
        cframe.pack(fill=fill, expand=expand, side=side)
        canvas = Tkinter.Canvas(cframe, background='#e0e0e0')

        # Give the canvas a scrollbar.
        sb = Tkinter.Scrollbar(cframe, orient='vertical')
        sb.pack(side='right', fill='y')
        canvas.pack(side='left', fill=fill, expand='yes')

        # Connect the scrollbars to the canvas.
        sb['command']= canvas.yview
        canvas['yscrollcommand'] = sb.set

        return (sb, canvas) 

def __init__(self, master, textvariable=None, *args, **kwargs):

        tk.Frame.__init__(self, master)
        # Init GUI

        self._y_scrollbar = tk.Scrollbar(self, orient=tk.VERTICAL)

        self._text_widget = tk.Text(self, yscrollcommand=self._y_scrollbar.set, *args, **kwargs)
        self._text_widget.pack(side=tk.LEFT, fill=tk.BOTH, expand=1)

        self._y_scrollbar.config(command=self._text_widget.yview)
        self._y_scrollbar.pack(side=tk.RIGHT, fill=tk.Y)

        if textvariable is not None:
            if not isinstance(textvariable, tk.Variable):
                raise TypeError("tkinter.Variable type expected, {} given.".format(
                    type(textvariable)))
            self._text_variable = textvariable
            self.var_modified()
            self._text_trace = self._text_widget.bind('<<Modified>>', self.text_modified)
            self._var_trace = textvariable.trace("w", self.var_modified) 

def addMessageFrame(self):
        frame=Frame(self)
        frame.pack(fill=tk.BOTH,side=tk.TOP,\
                expand=1,padx=8,pady=5)

        self.messagelabel=tk.Label(frame,text='Message',bg='#bbb')
        self.messagelabel.pack(side=tk.TOP,fill=tk.X)

        self.text=tk.Text(frame)
        self.text.pack(side=tk.TOP,fill=tk.BOTH,expand=1)
        self.text.height=10

        scrollbar=tk.Scrollbar(self.text)
        scrollbar.pack(side=tk.RIGHT,fill=tk.Y)

        self.text.config(yscrollcommand=scrollbar.set)
        scrollbar.config(command=self.text.yview) 

def __init__(self, master, width=500, height=350,
                                          canvwidth=600, canvheight=500):
        TK.Frame.__init__(self, master, width=width, height=height)
        self._rootwindow = self.winfo_toplevel()
        self.width, self.height = width, height
        self.canvwidth, self.canvheight = canvwidth, canvheight
        self.bg = "white"
        self._canvas = TK.Canvas(master, width=width, height=height,
                                 bg=self.bg, relief=TK.SUNKEN, borderwidth=2)
        self.hscroll = TK.Scrollbar(master, command=self._canvas.xview,
                                    orient=TK.HORIZONTAL)
        self.vscroll = TK.Scrollbar(master, command=self._canvas.yview)
        self._canvas.configure(xscrollcommand=self.hscroll.set,
                               yscrollcommand=self.vscroll.set)
        self.rowconfigure(0, weight=1, minsize=0)
        self.columnconfigure(0, weight=1, minsize=0)
        self._canvas.grid(padx=1, in_ = self, pady=1, row=0,
                column=0, rowspan=1, columnspan=1, sticky='news')
        self.vscroll.grid(padx=1, in_ = self, pady=1, row=0,
                column=1, rowspan=1, columnspan=1, sticky='news')
        self.hscroll.grid(padx=1, in_ = self, pady=1, row=1,
                column=0, rowspan=1, columnspan=1, sticky='news')
        self.reset()
        self._rootwindow.bind('<Configure>', self.onResize) 

def __init__(self, master=None, **kw):
        self.frame = Frame(master)
        self.vbar = Scrollbar(self.frame)
        self.vbar.pack(side=RIGHT, fill=Y)

        kw.update({'yscrollcommand': self.vbar.set})
        Text.__init__(self, self.frame, **kw)
        self.pack(side=LEFT, fill=BOTH, expand=True)
        self.vbar['command'] = self.yview

        # Copy geometry methods of self.frame without overriding Text
        # methods -- hack!
        text_meths = vars(Text).keys()
        methods = vars(Pack).keys() + vars(Grid).keys() + vars(Place).keys()
        methods = set(methods).difference(text_meths)

        for m in methods:
            if m[0] != '_' and m != 'config' and m != 'configure':
                setattr(self, m, getattr(self.frame, m)) 

def create_song_list_panel(self):
        # Creating Picture Canvas as Background
        background=Tkinter.PhotoImage(file="../Icons/background.gif")
        mainframe=Tkinter.Canvas(self.root)
        mainframe.pack(side='top', expand='yes', fill='both')
        mainframe.image=background
        mainframe.create_image(0, 0, anchor="nw", image=background)
        
        frame0=Tkinter.Frame(mainframe)
        frame0.pack(side='top')
        Tkinter.Label(frame0, text='Search : ', bg='skyblue').pack(side='left', expand='yes', fill='x')
        Tkinter.Entry(frame0, textvariable=self.var1).pack(side='left', expand='yes', fill='x')
        frame0.bind_all('<Any-KeyPress>',self.search_song_trigger)
        frame=Tkinter.Frame(mainframe, bg='skyblue')
        frame.pack(side='top')
        self.list_box=Tkinter.Listbox(frame, bg='powderblue', font=list_box_song_list_font, width=list_box_width, height=list_box_height)
        scrollbar=Tkinter.Scrollbar(frame, bg='skyblue')
        scrollbar.pack(side='right',expand='yes',fill='y')
        scrollbar.config(command=self.list_box.yview)
        self.list_box.config(yscrollcommand=scrollbar.set)
        self.list_box.pack(expand='yes',fill='both',side='right')
        frame1=Tkinter.Frame(mainframe, bg='blue')
        frame1.pack(side='top', expand='yes',fill='x')
        add_fileicon=Tkinter.PhotoImage(file="../Icons/add_file.gif")
        add_directoryicon=Tkinter.PhotoImage(file="../Icons/add_directory.gif")
        list_file=[
        (add_fileicon,'self.ask_for_play_song_direct'),
        (add_directoryicon,'self.ask_for_directory'),
        ]
        for i,j in list_file:
                storeobj=Tkinter.Button(frame1, image=i, command=eval(j), bg='blue')
                storeobj.pack(side='left')
                storeobj.image=i
        self.list_box.bind('<Double-Button-1>',self.play_on_click)
        return self.update_list_box_songs() 

def __init__(self, master=None, **kw):
        """Construct a Ttk Scrollbar with parent master.

        STANDARD OPTIONS

            class, cursor, style, takefocus

        WIDGET-SPECIFIC OPTIONS

            command, orient
        """
        Widget.__init__(self, master, "ttk::scrollbar", kw) 

def initScrollText(self,frm,txt,contents):
        scl = tk.Scrollbar(frm)
        scl.config(command = txt.yview)
        scl.pack(side="right",fill="y")
        txt.pack(side = "left", expand=True, fill="x")
        txt.config(yscrollcommand = scl.set)
        txt.insert("1.0",contents)
        frm.pack(fill = "x")
        tk.Frame(height=2, bd=1, relief="ridge").pack(fill="x") 

def _create_widgets(self):
        self.button_open_file = tk.Button(
            self, text='选择文件', command=self._open_file)
        self.button_open_file.grid(row=0, column=0, sticky='nswe')

        self.button_open_directory = tk.Button(
            self, text='选择目录', command=self._open_directory)
        self.button_open_directory.grid(row=0, column=1, sticky='nswe')

        frame = tk.Frame(self)
        self.label = tk.Label(frame, text='选中的文件或目录：')
        self.label.pack(side=tk.LEFT)
        self.label_selected = tk.Label(frame, text=self.videofile)
        self.label_selected.pack(side=tk.LEFT)
        frame.grid(row=1, column=0, columnspan=2, sticky='nswe')

        self.button_start = tk.Button(self, text='开始', command=self._start)
        self.button_start.grid(
            row=2, column=0, columnspan=2, pady=20, sticky='nswe')

        frame = tk.Frame(self)
        self.text_logger = tk.Text(frame)
        self.scrollbar = tk.Scrollbar(frame, command=self.text_logger.yview)
        self.text_logger.configure(yscrollcommand=self.scrollbar.set)
        self.text_logger.grid(row=0, column=0, sticky='nswe')
        self.scrollbar.grid(row=0, column=1, sticky='ns')
        tk.Grid.rowconfigure(self, 0, weight=1)
        tk.Grid.columnconfigure(frame, 0, weight=1)
        # tk.Grid.columnconfigure(frame, 1, weight=1)
        frame.grid(row=3, column=0, columnspan=2, pady=20, sticky='nswe')
        self._output = OutputStream(self.text_logger)
        self.after(100, self._display_msg)

        tk.Grid.rowconfigure(self, 3, weight=1)
        tk.Grid.columnconfigure(self, 0, weight=1)
        tk.Grid.columnconfigure(self, 1, weight=1) 

def strap_design_frame_builder(self):
        self.strap_inputs_frame = tk.Frame(self.strap_design_frame)
        self.strap_inputs_frame.pack(side=tk.LEFT, anchor='nw')
        self.strap_calc_frame = tk.Frame(self.strap_design_frame)
        self.strap_calc_frame.pack(side=tk.RIGHT ,anchor='ne', fill=tk.BOTH, expand=1)


        tk.Label(self.strap_inputs_frame, text="B = ", font=self.helv).grid(row=0, column=0, sticky = tk.E)
        tk.Entry(self.strap_inputs_frame, textvariable=self.bs, width=10, validate="key", validatecommand=self.reset_status).grid(row=0, column=1)
        tk.Label(self.strap_inputs_frame, text="in", font=self.helv).grid(row=0, column=2)

        tk.Label(self.strap_inputs_frame, text="H = ", font=self.helv).grid(row=1, column=0, sticky = tk.E)
        tk.Entry(self.strap_inputs_frame, textvariable=self.hs, width=10, validate="key", validatecommand=self.reset_status).grid(row=1, column=1)
        tk.Label(self.strap_inputs_frame, text="in", font=self.helv).grid(row=1, column=2)

        self.strap_vbar_size = tk.StringVar()
        self.inputs.append(self.strap_vbar_size)
        self.strap_vbar_size.set('3')
        self.strap_vbar_size_label = tk.Label(self.strap_inputs_frame, text="Shear\nBar Size (#) : ", font=self.helv)
        self.strap_vbar_size_label.grid(row=2,column=0, pady=2)
        self.strap_vbar_size_menu = tk.OptionMenu(self.strap_inputs_frame, self.strap_vbar_size, '3', '4', '5', command=self.reset_status)
        self.strap_vbar_size_menu.config(font=self.helv)
        self.strap_vbar_size_menu.grid(row=2, column=1, padx= 2, sticky=tk.W)

        self.strap_bar_size = tk.StringVar()
        self.inputs.append(self.strap_bar_size)
        self.strap_bar_size.set('3')
        self.strap_bar_size_label = tk.Label(self.strap_inputs_frame, text="Flexure\nBar Size (#) : ", font=self.helv)
        self.strap_bar_size_label.grid(row=4,column=0, pady=2)
        self.strap_bar_size_menu = tk.OptionMenu(self.strap_inputs_frame, self.strap_bar_size, '3', '4', '5','6','7','8','9','10','11','14','18', command=self.reset_status)
        self.strap_bar_size_menu.config(font=self.helv)
        self.strap_bar_size_menu.grid(row=4, column=1, padx= 2, sticky=tk.W)

        self.strap_calc_txtbox = tk.Text(self.strap_calc_frame, height = 25, width = 70, bg= "grey90", font= self.helv_norm, wrap=tk.WORD)
        self.strap_calc_txtbox.grid(row=0, column=0, sticky='nsew')

        self.strap_scroll = tk.Scrollbar(self.strap_calc_frame, command=self.strap_calc_txtbox.yview)
        self.strap_scroll.grid(row=0, column=1, sticky='nsew')
        self.strap_calc_txtbox['yscrollcommand'] = self.strap_scroll.set 

def addListBox(self, master, title):
            
            scrollbar =  tk.Scrollbar(master, orient=tk.VERTICAL)
            tipLabel = tk.Label(master, text="")
            tipLabel.grid(row = self.row, sticky=tk.W, column=self.tipColumn)                
            lb = tk.Listbox(master, yscrollcommand=scrollbar, selectmode=tk.EXTENDED, height=3)  
            
            self.listboxEntries[title] = ListBoxEntry(lb,scrollbar,tipLabel)              
            self.row += 1
            self.listboxEntries[title].scrollbar.configure(command=self.listboxEntries[title].listbox.yview)
            self.listboxEntries[title].scrollbar.grid(row=self.row, sticky=tk.W+tk.N+tk.S, column=self.titleColumn)
            return self.listboxEntries[title] 

def __init__(self, parent, filename):
        Frame.__init__(self, parent)
        text = HelpText(self, filename)
        self['background'] = text['background']
        scroll = Scrollbar(self, command=text.yview)
        text['yscrollcommand'] = scroll.set
        self.rowconfigure(0, weight=1)
        self.columnconfigure(1, weight=1)  # text
        self.toc_menu(text).grid(column=0, row=0, sticky='nw')
        text.grid(column=1, row=0, sticky='nsew')
        scroll.grid(column=2, row=0, sticky='ns') 

def __init__(self, parent):

        scrollbar = tk.Scrollbar(parent, orient=tk.VERTICAL)
        self.listbox = tk.Listbox(parent, yscrollcommand=scrollbar.set, selectmode=tk.EXTENDED)
        scrollbar.configure(command=self.listbox.yview)

        self.listbox.pack(side=tk.LEFT,fill=tk.BOTH, expand=1, pady=5)
        scrollbar.pack(side=tk.RIGHT, fill=tk.Y, pady=5) 

def addListBox(self, master, title, height = 3):
            
        scrollbar =  tk.Scrollbar(master, orient=tk.VERTICAL)
        tipLabel = tk.Label(master, text="")
        tipLabel.grid(row = self.row, sticky=tk.W, column=self.tipColumn)                
        lb = tk.Listbox(master, yscrollcommand=scrollbar, selectmode=tk.EXTENDED, height=height)  
        
        self.listboxEntries[title] = ListBoxEntry(lb,scrollbar,tipLabel)
        self.row += 1

        self.listboxEntries[title].scrollbar.configure(command=self.listboxEntries[title].listbox.yview)
        self.listboxEntries[title].scrollbar.grid(row=self.row, sticky=tk.W+tk.N+tk.S, column=self.titleColumn)
        return self.listboxEntries[title] 

def create(self, **kwargs):
        return tkinter.Scrollbar(self.root, **kwargs) 

def __init__(self, master, width=500, height=350,
                                          canvwidth=600, canvheight=500):
        TK.Frame.__init__(self, master, width=width, height=height)
        self._rootwindow = self.winfo_toplevel()
        self.width, self.height = width, height
        self.canvwidth, self.canvheight = canvwidth, canvheight
        self.bg = "white"
        self._canvas = TK.Canvas(master, width=width, height=height,
                                 bg=self.bg, relief=TK.SUNKEN, borderwidth=2)
        self.hscroll = TK.Scrollbar(master, command=self._canvas.xview,
                                    orient=TK.HORIZONTAL)
        self.vscroll = TK.Scrollbar(master, command=self._canvas.yview)
        self._canvas.configure(xscrollcommand=self.hscroll.set,
                               yscrollcommand=self.vscroll.set)
        self.rowconfigure(0, weight=1, minsize=0)
        self.columnconfigure(0, weight=1, minsize=0)
        self._canvas.grid(padx=1, in_ = self, pady=1, row=0,
                column=0, rowspan=1, columnspan=1, sticky='news')
        self.vscroll.grid(padx=1, in_ = self, pady=1, row=0,
                column=1, rowspan=1, columnspan=1, sticky='news')
        self.hscroll.grid(padx=1, in_ = self, pady=1, row=1,
                column=0, rowspan=1, columnspan=1, sticky='news')
        self.reset()
        self._rootwindow.bind('<Configure>', self.onResize) 

def __init__(self, master=None, **kw):
        """Construct a Ttk Scrollbar with parent master.

        STANDARD OPTIONS

            class, cursor, style, takefocus

        WIDGET-SPECIFIC OPTIONS

            command, orient
        """
        Widget.__init__(self, master, "ttk::scrollbar", kw) 

def create(self, **kwargs):
        return tkinter.Scrollbar(self.root, **kwargs) 

def __init__(self, master=None, **kw):
        """Construct a Ttk Scrollbar with parent master.

        STANDARD OPTIONS

            class, cursor, style, takefocus

        WIDGET-SPECIFIC OPTIONS

            command, orient
        """
        Widget.__init__(self, master, "ttk::scrollbar", kw) 

def create_imgwin(self, img_fn, title):
        '''
        creates a window to display an image
        '''
        from os.path import basename
        # create child window
        img = PhotoImage(file=img_fn)
        win = Toplevel()
        wwid = min(800, img.width())
        whei = min(800, img.height())
        win.geometry(('%dx%d' % (wwid+28, whei+28)))
        win.title(basename(title))
        frame = Frame(win, bd=0)
        frame.pack()
        xscrollbar = Scrollbar(frame, orient='horizontal')
        xscrollbar.pack(side='bottom', fill='x')
        yscrollbar = Scrollbar(frame, orient='vertical')
        yscrollbar.pack(side='right', fill='y')
        canvas = Canvas(frame, bd=0, width=wwid, height=whei,
                        scrollregion=(0, 0, img.width(), img.height()),
                        xscrollcommand=xscrollbar.set,
                        yscrollcommand=yscrollbar.set)
        canvas.pack(side='top', fill='both', expand=1)
        canvas.create_image(0, 0, image=img, anchor='nw')
        xscrollbar.config(command=canvas.xview)
        yscrollbar.config(command=canvas.yview)
        frame.pack()
        # next statement is important! creates reference to img
        canvas.img = img 

def __init__(self, parent, property_dict, *args, **kw):
        tk.Frame.__init__(self, parent, *args, **kw)

        # create a canvas object and a vertical scrollbar for scrolling it
        self.vscrollbar = vscrollbar = tk.Scrollbar(self, orient=tk.VERTICAL)
        vscrollbar.pack(fill=tk.Y, side=tk.RIGHT, expand=tk.FALSE)
        self.canvas = canvas = tk.Canvas(self, bd=0, highlightthickness=0,
                        yscrollcommand=vscrollbar.set)
        canvas.pack(side=tk.LEFT, fill=tk.BOTH, expand=tk.TRUE)
        vscrollbar.config(command=canvas.yview)

        # reset the view
        canvas.xview_moveto(0)
        canvas.yview_moveto(0)

        # create a frame inside the canvas which will be scrolled with it
        self.interior = interior = tk.Frame(canvas)
        self.interior_id = canvas.create_window(0, 0, window=interior,
                                           anchor='nw')

        self.interior.bind('<Configure>', self._configure_interior)
        self.canvas.bind('<Configure>', self._configure_canvas)

        self.build(property_dict) 

def __init__(self, root, vals, rng):
        self._root = root
        self._original_rng = rng
        self._original_vals = vals
        
        self._frame = Tkinter.Frame(root)
        self._frame.pack(expand=1, fill='both')

        # Set up the canvas
        self._canvas = Tkinter.Canvas(self._frame, background='white')
        self._canvas['scrollregion'] = (0,0,200,200)

        # Give the canvas scrollbars.
        sb1 = Tkinter.Scrollbar(self._frame, orient='vertical')
        sb1.pack(side='right', fill='y')
        sb2 = Tkinter.Scrollbar(self._frame, orient='horizontal')
        sb2.pack(side='bottom', fill='x')
        self._canvas.pack(side='left', fill='both', expand=1)

        # Connect the scrollbars to the canvas.
        sb1.config(command=self._canvas.yview)
        sb2['command']=self._canvas.xview
        self._canvas['yscrollcommand'] = sb1.set
        self._canvas['xscrollcommand'] = sb2.set

        self._width = self._height = -1
        self._canvas.bind('<Configure>', self._configure)

        # Start out with linear coordinates.
        self.config_axes(0, 0) 

def __init__(self):
        root = tk.Tk()
        root.title('OpenCV Demo')

        self.win = win = tk.PanedWindow(root, orient=tk.HORIZONTAL, sashrelief=tk.RAISED, sashwidth=4)
        self.win.pack(fill=tk.BOTH, expand=1)

        left = tk.Frame(win)
        right = tk.Frame(win)
        win.add(left)
        win.add(right)

        scrollbar = tk.Scrollbar(left, orient=tk.VERTICAL)
        self.demos_lb = demos_lb = tk.Listbox(left, yscrollcommand=scrollbar.set)
        scrollbar.config(command=demos_lb.yview)
        scrollbar.pack(side=tk.RIGHT, fill=tk.Y)
        demos_lb.pack(side=tk.LEFT, fill=tk.BOTH, expand=1)

        self.samples = {}
        for fn in glob('*.py'):
            name = splitfn(fn)[1]
            if fn[0] != '_' and name not in exclude_list:
                demos_lb.insert(tk.END, name)
                self.samples[name] = fn
        demos_lb.bind('<<ListboxSelect>>', self.on_demo_select)

        self.cmd_entry = cmd_entry = tk.Entry(right)
        cmd_entry.bind('<Return>', self.on_run)
        run_btn = tk.Button(right, command=self.on_run, text='Run', width=8)

        self.text = text = ScrolledText(right, font=('arial', 12, 'normal'), width = 30, wrap='word')
        self.linker = linker = LinkManager(text, self.on_link)
        self.text.tag_config("header1", font=('arial', 14, 'bold'))
        self.text.tag_config("header2", font=('arial', 12, 'bold'))
        text.config(state='disabled')

        text.pack(fill='both', expand=1, side=tk.BOTTOM)
        cmd_entry.pack(fill='x', side='left' , expand=1)
        run_btn.pack() 

def __init__(self):
        root = tk.Tk()
        root.title('OpenCV Demo')

        self.win = win = tk.PanedWindow(root, orient=tk.HORIZONTAL, sashrelief=tk.RAISED, sashwidth=4)
        self.win.pack(fill=tk.BOTH, expand=1)

        left = tk.Frame(win)
        right = tk.Frame(win)
        win.add(left)
        win.add(right)

        scrollbar = tk.Scrollbar(left, orient=tk.VERTICAL)
        self.demos_lb = demos_lb = tk.Listbox(left, yscrollcommand=scrollbar.set)
        scrollbar.config(command=demos_lb.yview)
        scrollbar.pack(side=tk.RIGHT, fill=tk.Y)
        demos_lb.pack(side=tk.LEFT, fill=tk.BOTH, expand=1)

        self.samples = {}
        for fn in glob('*.py'):
            name = splitfn(fn)[1]
            if fn[0] != '_' and name not in exclude_list:
                demos_lb.insert(tk.END, name)
                self.samples[name] = fn
        demos_lb.bind('<<ListboxSelect>>', self.on_demo_select)

        self.cmd_entry = cmd_entry = tk.Entry(right)
        cmd_entry.bind('<Return>', self.on_run)
        run_btn = tk.Button(right, command=self.on_run, text='Run', width=8)

        self.text = text = ScrolledText(right, font=('arial', 12, 'normal'), width = 30, wrap='word')
        self.linker = linker = LinkManager(text, self.on_link)
        self.text.tag_config("header1", font=('arial', 14, 'bold'))
        self.text.tag_config("header2", font=('arial', 12, 'bold'))
        text.config(state='disabled')

        text.pack(fill='both', expand=1, side=tk.BOTTOM)
        cmd_entry.pack(fill='x', side='left' , expand=1)
        run_btn.pack()