Python Tkinter.Y Examples

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 __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 canvClick(self, event):
    try:
      x = int(self.canvas1.canvasx(event.x) / self.root.zoomMult)
      y = int(self.canvas1.canvasy(event.y) / self.root.zoomMult)
      w, h = self.root.im.size
      if 0 <= x < w and 0 <= y < h:
        tk_rgb = "#%02x%02x%02x" % self.root.im.getpixel((x, y))
        self.canvas2.config(bg=tk_rgb)
        rgb = "R: %d; G: %d; B: %d;" % self.root.im.getpixel((x, y))
        self.v.set(rgb)
        xy = "X: %d; Y: %d;" % (x, y)
        self.xy.set(xy)
      else:
        rgb = "X,Y Out of Range"
        self.v.set(rgb)
    except ValueError:
      pass 

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, 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 pack(self):
        self.file_selector_button.pack(**self.button_opt)
        self.label.pack()
        self.scrollbar.pack(side=tkinter.RIGHT, fill=tkinter.Y)
        self.selected_files.pack(fill=tkinter.BOTH, expand=True) 

def grid(self, row=0, column=0):
        """
        TODO: to be tested
        """
        x = row
        y = column
        self.file_selector_button.grid(row=x, column=y, **self.button_opt)
        x += 1
        self.label.grid(row=x, column=y)
        x += 1
        self.scrollbar.pack(side=tkinter.RIGHT, fill=tkinter.Y)
        self.selected_files.grid(row=x, column=y, fill=tkinter.BOTH, expand=True)
        x += 1
        return (x,y) 

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 picture_tool(filename = None):
  """Allows you to find information about digital images.

  The PictureTool's Toolbar:

  Once you have opened an image, you can view information about its
  individual pixels by looking at the toolbar. To select a pixel drag
  (click and hold down) the mouse to the position you want and then
  release it to hold that position's information in the toolbar.

  The following information in the toolbar changes to reflect the
  properties of the pixel you selected:

  X = the x coordinate of the pixel (starting with 0, counting from the left) 
  Y = the y coordinate of the pixel (starting with 0, counting from the top)
  R = the Red value of the pixel (0 to 255)
  G = the Green value of the pixel (0 to 255)
  B = the Blue value of the pixel (0 to 255)

  In addition, the box at the far right displays the color of the pixel.

  Zooming in/out:
  To Zoom, select the amount of zoom you want from the zoom menu.
  Less than 100% zooms out and more than 100% zooms in. 
  The 100% zoom level will always return you to your orginal picture.
  
  filename: a string representing the location and name of picture.
  If no filename is given, a file-chooser opens."""

  if not filename:
    filename = _easygui.fileopenbox("Select an image", 
                                    _sys.argv[0], '*', 
                                    [ [ "*.jpg", "*.png", "*.bmp", "*.gif",
                                        "Image files" ] ])
    if not filename: 
      raise RuntimeError("No image file selected.")
  img = load_picture(filename)
  tool = PictureTool(img)
  tool.run_tool()

# -------------------------------------------------------------------- 

def show_error_dialog(self, title, message_text, exception):

        # ToDo: Check Windows behavior!! --> -disable
        self._root.wm_attributes("-topmost", False)

        err_dialog = Tk.Toplevel(self._frame)
        err_dialog.minsize(300, 400)
        err_dialog.transient(self._frame)
        err_dialog.focus_force()
        err_dialog.grab_set()

        def add_textview(header, text):
            err_dialog_frame = Tk.Frame(err_dialog)
            err_dialog_label = Tk.Label(err_dialog_frame, text=header)
            err_dialog_label.pack(side='top', fill=Tk.X)
            err_dialog_text = Tk.Text(err_dialog_frame, height=10)
            err_dialog_text.insert(Tk.END, text)
            err_dialog_text.pack(side='left', fill=Tk.Y)
            err_dialog_scrollbar = Tk.Scrollbar(err_dialog_frame)
            err_dialog_scrollbar.pack(side='right', fill=Tk.Y)
            err_dialog_scrollbar.config(command=err_dialog_text.yview)
            err_dialog_text.config(yscrollcommand=err_dialog_scrollbar.set)
            err_dialog_frame.pack(side='top')

        def close_error_dialog():
            # ToDo: Check Windows behavior!! -disable
            self._root.wm_attributes("-topmost", True)
            err_dialog.destroy()

        err_dialog.protocol("WM_DELETE_WINDOW", close_error_dialog)

        add_textview(message_text, str(exception))

        if isinstance(exception, TexTextCommandFailed):
            if exception.stdout:
                add_textview('Stdout:', exception.stdout.decode('utf-8'))

            if exception.stderr:
                add_textview('Stderr:', exception.stderr.decode('utf-8'))

        close_button = Tk.Button(err_dialog, text='OK', command=close_error_dialog)
        close_button.pack(side='top', fill='x', expand=True) 

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() 

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:
                self.samples[name] = fn

        for name in sorted(self.samples):
            demos_lb.insert(tk.END, name)

        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()