mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-12-26 05:02:31 -06:00
508 lines
19 KiB
Python
508 lines
19 KiB
Python
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"""
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Slider Class: Velocity style controller for floating point values with
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a label, entry (validated), and min/max slider
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"""
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__all__ = ['Slider', 'SliderWidget', 'rgbPanel']
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from direct.showbase.TkGlobal import *
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from Tkinter import *
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from Valuator import Valuator, rgbPanel, VALUATOR_MINI, VALUATOR_FULL
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from direct.task import Task
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import math, sys, string
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import operator, Pmw
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from pandac.PandaModules import ClockObject
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class Slider(Valuator):
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"""
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Valuator widget which includes an min/max slider and an entry for setting
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floating point values in a range
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"""
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def __init__(self, parent = None, **kw):
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INITOPT = Pmw.INITOPT
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optiondefs = (
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('min', 0.0, self.setMin),
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('max', 100.0, self.setMax),
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('style', VALUATOR_MINI, INITOPT),
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)
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self.defineoptions(kw, optiondefs)
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Valuator.__init__(self, parent)
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# Can not enter None for min or max, update propertyDict to reflect
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self.propertyDict['min']['fNone'] = 0
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self.propertyDict['min']['help'] = 'Minimum allowable value.'
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self.propertyDict['max']['fNone'] = 0
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self.propertyDict['max']['help'] = 'Maximum allowable value.'
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self.initialiseoptions(Slider)
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def createValuator(self):
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self._valuator = self.createcomponent(
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'valuator',
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(('slider', 'valuator'),),
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None,
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SliderWidget,
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(self.interior(),),
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style = self['style'],
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command = self.setEntry,
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value = self['value'])
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#self._valuator._widget.bind('<Double-ButtonPress-1>', self.mouseReset)
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# Add popup bindings to slider widget
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try:
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self._valuator._arrowBtn.bind(
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'<ButtonPress-3>', self._popupValuatorMenu)
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except AttributeError:
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pass
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self._valuator._minLabel.bind(
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'<ButtonPress-3>', self._popupValuatorMenu)
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self._valuator._maxLabel.bind(
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'<ButtonPress-3>', self._popupValuatorMenu)
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def packValuator(self):
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if self['style'] == VALUATOR_FULL:
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if self._label:
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self._label.grid(row = 0, column = 0, sticky = EW)
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self._entry.grid(row = 0, column = 1, sticky = EW)
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self._valuator.grid(row = 1, columnspan = 2,
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padx = 2, pady = 2, sticky = 'ew')
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self.interior().columnconfigure(0, weight = 1)
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else:
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if self._label:
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self._label.grid(row=0, column=0, sticky = EW)
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self._entry.grid(row=0, column=1, sticky = EW)
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self._valuator.grid(row=0, column=2, padx = 2, pady = 2)
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self.interior().columnconfigure(0, weight = 1)
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def setMin(self):
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if self['min'] is not None:
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self._valuator['min'] = self['min']
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def setMax(self):
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if self['max'] is not None:
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self._valuator['max'] = self['max']
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# Based on Pmw ComboBox code.
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class SliderWidget(Pmw.MegaWidget):
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def __init__(self, parent = None, **kw):
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# Define the megawidget options.
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INITOPT = Pmw.INITOPT
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optiondefs = (
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# Appearance
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('style', VALUATOR_MINI, INITOPT),
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('relief', RAISED, self.setRelief),
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('borderwidth', 2, self.setBorderwidth),
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('background', 'grey75', self.setBackground),
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('fliparrow', 0, INITOPT),
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# Behavior
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# Bounds
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('min', 0.0, self.setMin),
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('max', 100.0, self.setMax),
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# Initial value of slider, use self.set to change value
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('value', 0.0, INITOPT),
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('numDigits', 2, self.setNumDigits),
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# Command to execute on slider updates
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('command', None, None),
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# Extra data to be passed to command function
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('commandData', [], None),
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# Callback's to execute during mouse interaction
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('preCallback', None, None),
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('postCallback', None, None),
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# Extra data to be passed to callback function, needs to be a list
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('callbackData', [], None),
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)
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self.defineoptions(kw, optiondefs)
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# Initialise the base class (after defining the options).
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Pmw.MegaWidget.__init__(self, parent)
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# Create the components.
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interior = self.interior()
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# Current value
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self.value = self['value']
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self.formatString = '%2f'
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self.increment = 0.01
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# Interaction flags
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self._isPosted = 0
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self._fUnpost = 0
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self._fUpdate = 0
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self._firstPress = 1
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self._fPressInsde = 0
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# Slider dimensions
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width = 100
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self.xPad = xPad = 10
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sliderWidth = width + 2 * xPad
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height = 20
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self.left = left = -(width/2.0)
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self.right = right = (width/2.0)
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top = -5
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bottom = top + height
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def createSlider(parent):
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# Create the slider inside the dropdown window.
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# Min label
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self._minLabel = Label(parent, text = self['min'], width = 8,
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anchor = W)
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self._minLabel.pack(side = LEFT)
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# Slider widget
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if self['style'] == VALUATOR_FULL:
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# Use a scale slider
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self._widgetVar = DoubleVar()
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self._widgetVar.set(self['value'])
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self._widget = self.createcomponent(
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'slider', (), None,
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Scale, (interior,),
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variable = self._widgetVar,
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from_ = self['min'], to = self['max'],
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resolution = 0.0,
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width = 10,
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orient = 'horizontal',
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showvalue = 0,
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length = sliderWidth,
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relief = FLAT, bd = 2,
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highlightthickness = 0)
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else:
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# Use a canvas slider
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self._widget = self.createcomponent(
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'slider', (), None,
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Canvas, (parent,),
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width = sliderWidth,
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height = height,
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bd = 2,
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highlightthickness = 0,
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scrollregion = (left - xPad, top, right + xPad, bottom))
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# Interaction marker
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xShift = 1
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# Shadow arrow
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self._marker = self._widget.create_polygon(-7 + xShift, 12,
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7 + xShift, 12,
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xShift, 0,
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fill = 'black',
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tags = ('marker',))
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# Arrow
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self._widget.create_polygon(-6.0, 10,
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6.0, 10,
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0, 0,
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fill = 'grey85',
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outline = 'black',
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tags = ('marker',))
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# The indicator
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self._widget.create_line(left, 0,
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right, 0,
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width = 2,
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tags = ('line',))
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self._widget.pack(side = LEFT, expand=1, fill=X)
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# Max label
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self._maxLabel = Label(parent, text = self['max'], width = 8,
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anchor = W)
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self._maxLabel.pack(side = LEFT)
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# Create slider
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if self['style'] == VALUATOR_MINI:
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# Create the arrow button to invoke slider
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self._arrowBtn = self.createcomponent(
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'arrowbutton',
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(), None,
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Canvas, (interior,), borderwidth = 0,
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relief = FLAT, width = 14, height = 14,
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scrollregion = (-7, -7, 7, 7))
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self._arrowBtn.pack(expand = 1, fill = BOTH)
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self._arrowBtn.create_polygon(-5, -5, 5, -5, 0, 5,
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fill = 'grey50',
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tags = 'arrow')
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self._arrowBtn.create_line(-5, 5, 5, 5,
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fill = 'grey50',
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tags = 'arrow')
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# Create the dropdown window.
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self._popup = self.createcomponent(
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'popup',
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(), None,
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Toplevel, (interior,),
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relief = RAISED, borderwidth = 2)
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self._popup.withdraw()
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self._popup.overrideredirect(1)
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# Create popup slider
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createSlider(self._popup)
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# Bind events to the arrow button.
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self._arrowBtn.bind('<1>', self._postSlider)
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self._arrowBtn.bind('<Enter>', self.highlightWidget)
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self._arrowBtn.bind('<Leave>', self.restoreWidget)
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# Need to unpost the popup if the arrow Button is unmapped (eg:
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# its toplevel window is withdrawn) while the popup slider is
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# displayed.
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self._arrowBtn.bind('<Unmap>', self._unpostSlider)
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# Bind events to the dropdown window.
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self._popup.bind('<Escape>', self._unpostSlider)
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self._popup.bind('<ButtonRelease-1>', self._widgetBtnRelease)
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self._popup.bind('<ButtonPress-1>', self._widgetBtnPress)
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self._popup.bind('<Motion>', self._widgetMove)
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self._widget.bind('<Left>', self._decrementValue)
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self._widget.bind('<Right>', self._incrementValue)
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self._widget.bind('<Shift-Left>', self._bigDecrementValue)
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self._widget.bind('<Shift-Right>', self._bigIncrementValue)
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self._widget.bind('<Home>', self._goToMin)
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self._widget.bind('<End>', self._goToMax)
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else:
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createSlider(interior)
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self._widget['command'] = self._firstScaleCommand
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self._widget.bind('<ButtonRelease-1>', self._scaleBtnRelease)
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self._widget.bind('<ButtonPress-1>', self._scaleBtnPress)
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# Check keywords and initialise options.
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self.initialiseoptions(SliderWidget)
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# Adjust relief
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if 'relief' not in kw:
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if self['style'] == VALUATOR_FULL:
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self['relief'] = FLAT
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self.updateIndicator(self['value'])
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def destroy(self):
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if (self['style'] == VALUATOR_MINI) and self._isPosted:
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Pmw.popgrab(self._popup)
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Pmw.MegaWidget.destroy(self)
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#======================================================================
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# Public methods
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def set(self, value, fCommand = 1):
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"""
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self.set(value, fCommand = 1)
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Set slider to new value, execute command if fCommand == 1
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"""
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# Send command if any
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if fCommand and (self['command'] != None):
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apply(self['command'], [value] + self['commandData'])
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# Record value
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self.value = value
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def get(self):
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"""
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self.get()
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Get current slider value
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"""
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return self.value
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def updateIndicator(self, value):
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if self['style'] == VALUATOR_MINI:
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# Get current marker position
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percentX = (value - self['min'])/float(self['max'] - self['min'])
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newX = percentX * (self.right - self.left) + self.left
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markerX = self._getMarkerX()
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dx = newX - markerX
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self._widget.move('marker', dx, 0)
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else:
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# Update scale's variable, which update scale without
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# Calling scale's command
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self._widgetVar.set(value)
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#======================================================================
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# Private methods for slider.
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def _postSlider(self, event = None):
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self._isPosted = 1
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self._fUpdate = 0
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# Make sure that the arrow is displayed sunken.
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self.interior()['relief'] = SUNKEN
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self.update_idletasks()
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# Position popup so that marker is immediately below center of
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# Arrow button
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# Find screen space position of bottom/center of arrow button
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x = (self._arrowBtn.winfo_rootx() + self._arrowBtn.winfo_width()/2.0 -
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self.interior()['bd'])
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# string.atoi(self.interior()['bd']))
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y = self._arrowBtn.winfo_rooty() + self._arrowBtn.winfo_height()
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# Popup border width
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bd = self._popup['bd']
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# bd = string.atoi(self._popup['bd'])
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# Get width of label
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minW = self._minLabel.winfo_width()
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# Width of canvas to adjust for
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cw = (self._getMarkerX() - self.left) + self.xPad
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popupOffset = bd + minW + cw
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ch = self._widget.winfo_height()
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sh = self.winfo_screenheight()
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# Compensate if too close to edge of screen
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if y + ch > sh and y > sh / 2:
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y = self._arrowBtn.winfo_rooty() - ch
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# Popup window
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Pmw.setgeometryanddeiconify(self._popup, '+%d+%d' % (x-popupOffset, y))
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# Grab the popup, so that all events are delivered to it, and
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# set focus to the slider, to make keyboard navigation
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# easier.
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Pmw.pushgrab(self._popup, 1, self._unpostSlider)
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self._widget.focus_set()
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# Ignore the first release of the mouse button after posting the
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# dropdown slider, unless the mouse enters the dropdown slider.
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self._fUpdate = 0
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self._fUnpost = 0
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self._firstPress = 1
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self._fPressInsde = 0
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def _updateValue(self, event):
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mouseX = self._widget.canvasx(
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event.x_root - self._widget.winfo_rootx())
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if mouseX < self.left:
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mouseX = self.left
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if mouseX > self.right:
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mouseX = self.right
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# Update value
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sf = (mouseX - self.left)/(self.right - self.left)
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newVal = sf * (self['max'] - self['min']) + self['min']
|
||
|
|
self.set(newVal)
|
||
|
|
|
||
|
|
def _widgetBtnPress(self, event):
|
||
|
|
# Check behavior for this button press
|
||
|
|
widget = self._popup
|
||
|
|
xPos = event.x_root - widget.winfo_rootx()
|
||
|
|
yPos = event.y_root - widget.winfo_rooty()
|
||
|
|
fInside = ((xPos > 0) and (xPos < widget.winfo_width()) and
|
||
|
|
(yPos > 0) and (yPos < widget.winfo_height()))
|
||
|
|
# Set flags based upon result
|
||
|
|
if fInside:
|
||
|
|
self._fPressInside = 1
|
||
|
|
self._fUpdate = 1
|
||
|
|
if self['preCallback']:
|
||
|
|
apply(self['preCallback'], self['callbackData'])
|
||
|
|
self._updateValue(event)
|
||
|
|
else:
|
||
|
|
self._fPressInside = 0
|
||
|
|
self._fUpdate = 0
|
||
|
|
|
||
|
|
def _widgetMove(self, event):
|
||
|
|
if self._firstPress and not self._fUpdate:
|
||
|
|
canvasY = self._widget.canvasy(
|
||
|
|
event.y_root - self._widget.winfo_rooty())
|
||
|
|
if canvasY > 0:
|
||
|
|
self._fUpdate = 1
|
||
|
|
if self['preCallback']:
|
||
|
|
apply(self['preCallback'], self['callbackData'])
|
||
|
|
self._unpostOnNextRelease()
|
||
|
|
elif self._fUpdate:
|
||
|
|
self._updateValue(event)
|
||
|
|
|
||
|
|
def _scaleBtnPress(self, event):
|
||
|
|
if self['preCallback']:
|
||
|
|
apply(self['preCallback'], self['callbackData'])
|
||
|
|
|
||
|
|
def _scaleBtnRelease(self, event):
|
||
|
|
# Do post callback if any
|
||
|
|
if self['postCallback']:
|
||
|
|
apply(self['postCallback'], self['callbackData'])
|
||
|
|
|
||
|
|
def _widgetBtnRelease(self, event):
|
||
|
|
# Do post callback if any
|
||
|
|
if self._fUpdate and self['postCallback']:
|
||
|
|
apply(self['postCallback'], self['callbackData'])
|
||
|
|
if (self._fUnpost or
|
||
|
|
(not (self._firstPress or self._fPressInside))):
|
||
|
|
self._unpostSlider()
|
||
|
|
# Otherwise, continue
|
||
|
|
self._fUpdate = 0
|
||
|
|
self._firstPress = 0
|
||
|
|
self._fPressInside = 0
|
||
|
|
|
||
|
|
def _unpostOnNextRelease(self, event = None):
|
||
|
|
self._fUnpost = 1
|
||
|
|
|
||
|
|
def _unpostSlider(self, event=None):
|
||
|
|
if not self._isPosted:
|
||
|
|
# It is possible to get events on an unposted popup. For
|
||
|
|
# example, by repeatedly pressing the space key to post
|
||
|
|
# and unpost the popup. The <space> event may be
|
||
|
|
# delivered to the popup window even though
|
||
|
|
# Pmw.popgrab() has set the focus away from the
|
||
|
|
# popup window. (Bug in Tk?)
|
||
|
|
return
|
||
|
|
|
||
|
|
# Restore the focus before withdrawing the window, since
|
||
|
|
# otherwise the window manager may take the focus away so we
|
||
|
|
# can't redirect it. Also, return the grab to the next active
|
||
|
|
# window in the stack, if any.
|
||
|
|
Pmw.popgrab(self._popup)
|
||
|
|
self._popup.withdraw()
|
||
|
|
|
||
|
|
self._isPosted = 0
|
||
|
|
|
||
|
|
# Raise up arrow button
|
||
|
|
self.interior()['relief'] = RAISED
|
||
|
|
|
||
|
|
def _incrementValue(self, event):
|
||
|
|
self.set(self.value + self.increment)
|
||
|
|
def _bigIncrementValue(self, event):
|
||
|
|
self.set(self.value + self.increment * 10.0)
|
||
|
|
def _decrementValue(self, event):
|
||
|
|
self.set(self.value - self.increment)
|
||
|
|
def _bigDecrementValue(self, event):
|
||
|
|
self.set(self.value - self.increment * 10.0)
|
||
|
|
def _goToMin(self, event):
|
||
|
|
self.set(self['min'])
|
||
|
|
def _goToMax(self, event):
|
||
|
|
self.set(self['max'])
|
||
|
|
|
||
|
|
def _firstScaleCommand(self, val):
|
||
|
|
""" Hack to avoid calling command on instantiation of Scale """
|
||
|
|
self._widget['command'] = self._scaleCommand
|
||
|
|
|
||
|
|
def _scaleCommand(self, val):
|
||
|
|
self.set(string.atof(val))
|
||
|
|
|
||
|
|
# Methods to modify floater characteristics
|
||
|
|
def setMin(self):
|
||
|
|
self._minLabel['text'] = self.formatString % self['min']
|
||
|
|
if self['style'] == VALUATOR_FULL:
|
||
|
|
self._widget['from_'] = self['min']
|
||
|
|
self.updateIndicator(self.value)
|
||
|
|
|
||
|
|
def setMax(self):
|
||
|
|
self._maxLabel['text'] = self.formatString % self['max']
|
||
|
|
if self['style'] == VALUATOR_FULL:
|
||
|
|
self._widget['to'] = self['max']
|
||
|
|
self.updateIndicator(self.value)
|
||
|
|
|
||
|
|
def setNumDigits(self):
|
||
|
|
self.formatString = '%0.' + ('%d' % self['numDigits']) + 'f'
|
||
|
|
self._minLabel['text'] = self.formatString % self['min']
|
||
|
|
self._maxLabel['text'] = self.formatString % self['max']
|
||
|
|
self.updateIndicator(self.value)
|
||
|
|
self.increment = pow(10, -self['numDigits'])
|
||
|
|
|
||
|
|
def _getMarkerX(self):
|
||
|
|
# Get marker triangle coordinates
|
||
|
|
c = self._widget.coords(self._marker)
|
||
|
|
# Marker postion defined as X position of third vertex
|
||
|
|
return c[4]
|
||
|
|
|
||
|
|
def setRelief(self):
|
||
|
|
self.interior()['relief'] = self['relief']
|
||
|
|
|
||
|
|
def setBorderwidth(self):
|
||
|
|
self.interior()['borderwidth'] = self['borderwidth']
|
||
|
|
|
||
|
|
def setBackground(self):
|
||
|
|
self._widget['background'] = self['background']
|
||
|
|
|
||
|
|
def highlightWidget(self, event):
|
||
|
|
self._arrowBtn.itemconfigure('arrow', fill = 'black')
|
||
|
|
|
||
|
|
def restoreWidget(self, event):
|
||
|
|
self._arrowBtn.itemconfigure('arrow', fill = 'grey50')
|
||
|
|
|