382 lines
12 KiB
Python
382 lines
12 KiB
Python
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# Authors: Joe VanAndel and Greg McFarlane
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import string
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import sys
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import time
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import Tkinter
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import Pmw
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class TimeCounter(Pmw.MegaWidget):
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"""Up-down counter
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A TimeCounter is a single-line entry widget with Up and Down arrows
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which increment and decrement the Time value in the entry.
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"""
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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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('autorepeat', 1, None),
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('buttonaspect', 1.0, INITOPT),
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('command', None, None),
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('initwait', 300, None),
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('labelmargin', 0, INITOPT),
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('labelpos', None, INITOPT),
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('max', None, self._max),
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('min', None, self._min),
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('padx', 0, INITOPT),
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('pady', 0, INITOPT),
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('repeatrate', 50, None),
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('value', None, INITOPT),
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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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self.arrowDirection = {}
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self._flag = 'stopped'
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self._timerId = None
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self._createComponents(kw)
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value = self['value']
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if value is None:
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now = time.time()
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value = time.strftime('%H:%M:%S', time.localtime(now))
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self.setvalue(value)
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# Check keywords and initialise options.
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self.initialiseoptions()
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def _createComponents(self, kw):
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# Create the components.
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interior = self.interior()
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# If there is no label, put the arrows and the entry directly
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# into the interior, otherwise create a frame for them. In
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# either case the border around the arrows and the entry will
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# be raised (but not around the label).
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if self['labelpos'] is None:
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frame = interior
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if not kw.has_key('hull_relief'):
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frame.configure(relief = 'raised')
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if not kw.has_key('hull_borderwidth'):
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frame.configure(borderwidth = 1)
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else:
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frame = self.createcomponent('frame',
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(), None,
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Tkinter.Frame, (interior,),
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relief = 'raised', borderwidth = 1)
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frame.grid(column=2, row=2, sticky='nsew')
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interior.grid_columnconfigure(2, weight=1)
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interior.grid_rowconfigure(2, weight=1)
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# Create the down arrow buttons.
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# Create the hour down arrow.
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self._downHourArrowBtn = self.createcomponent('downhourarrow',
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(), 'Arrow',
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Tkinter.Canvas, (frame,),
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width = 16, height = 16, relief = 'raised', borderwidth = 2)
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self.arrowDirection[self._downHourArrowBtn] = 'down'
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self._downHourArrowBtn.grid(column = 0, row = 2)
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# Create the minute down arrow.
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self._downMinuteArrowBtn = self.createcomponent('downminutearrow',
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(), 'Arrow',
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Tkinter.Canvas, (frame,),
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width = 16, height = 16, relief = 'raised', borderwidth = 2)
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self.arrowDirection[self._downMinuteArrowBtn] = 'down'
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self._downMinuteArrowBtn.grid(column = 1, row = 2)
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# Create the second down arrow.
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self._downSecondArrowBtn = self.createcomponent('downsecondarrow',
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(), 'Arrow',
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Tkinter.Canvas, (frame,),
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width = 16, height = 16, relief = 'raised', borderwidth = 2)
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self.arrowDirection[self._downSecondArrowBtn] = 'down'
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self._downSecondArrowBtn.grid(column = 2, row = 2)
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# Create the entry fields.
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# Create the hour entry field.
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self._hourCounterEntry = self.createcomponent('hourentryfield',
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(('hourentry', 'hourentryfield_entry'),), None,
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Pmw.EntryField, (frame,), validate='integer', entry_width = 2)
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self._hourCounterEntry.grid(column = 0, row = 1, sticky = 'news')
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# Create the minute entry field.
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self._minuteCounterEntry = self.createcomponent('minuteentryfield',
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(('minuteentry', 'minuteentryfield_entry'),), None,
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Pmw.EntryField, (frame,), validate='integer', entry_width = 2)
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self._minuteCounterEntry.grid(column = 1, row = 1, sticky = 'news')
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# Create the second entry field.
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self._secondCounterEntry = self.createcomponent('secondentryfield',
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(('secondentry', 'secondentryfield_entry'),), None,
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Pmw.EntryField, (frame,), validate='integer', entry_width = 2)
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self._secondCounterEntry.grid(column = 2, row = 1, sticky = 'news')
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# Create the up arrow buttons.
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# Create the hour up arrow.
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self._upHourArrowBtn = self.createcomponent('uphourarrow',
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(), 'Arrow',
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Tkinter.Canvas, (frame,),
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width = 16, height = 16, relief = 'raised', borderwidth = 2)
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self.arrowDirection[self._upHourArrowBtn] = 'up'
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self._upHourArrowBtn.grid(column = 0, row = 0)
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# Create the minute up arrow.
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self._upMinuteArrowBtn = self.createcomponent('upminutearrow',
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(), 'Arrow',
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Tkinter.Canvas, (frame,),
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width = 16, height = 16, relief = 'raised', borderwidth = 2)
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self.arrowDirection[self._upMinuteArrowBtn] = 'up'
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self._upMinuteArrowBtn.grid(column = 1, row = 0)
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# Create the second up arrow.
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self._upSecondArrowBtn = self.createcomponent('upsecondarrow',
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(), 'Arrow',
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Tkinter.Canvas, (frame,),
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width = 16, height = 16, relief = 'raised', borderwidth = 2)
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self.arrowDirection[self._upSecondArrowBtn] = 'up'
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self._upSecondArrowBtn.grid(column = 2, row = 0)
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# Make it resize nicely.
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padx = self['padx']
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pady = self['pady']
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for col in range(3):
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frame.grid_columnconfigure(col, weight = 1, pad = padx)
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frame.grid_rowconfigure(0, pad = pady)
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frame.grid_rowconfigure(2, pad = pady)
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frame.grid_rowconfigure(1, weight = 1)
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# Create the label.
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self.createlabel(interior)
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# Set bindings.
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# Up hour
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self._upHourArrowBtn.bind('<Configure>',
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lambda event, s=self,button=self._upHourArrowBtn:
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s._drawArrow(button, 'up'))
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self._upHourArrowBtn.bind('<1>',
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lambda event, s=self,button=self._upHourArrowBtn:
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s._countUp(button, 3600))
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self._upHourArrowBtn.bind('<Any-ButtonRelease-1>',
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lambda event, s=self, button=self._upHourArrowBtn:
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s._stopUpDown(button))
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# Up minute
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self._upMinuteArrowBtn.bind('<Configure>',
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lambda event, s=self,button=self._upMinuteArrowBtn:
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s._drawArrow(button, 'up'))
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self._upMinuteArrowBtn.bind('<1>',
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lambda event, s=self,button=self._upMinuteArrowBtn:
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s._countUp(button, 60))
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self._upMinuteArrowBtn.bind('<Any-ButtonRelease-1>',
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lambda event, s=self, button=self._upMinuteArrowBtn:
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s._stopUpDown(button))
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# Up second
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self._upSecondArrowBtn.bind('<Configure>',
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lambda event, s=self,button=self._upSecondArrowBtn:
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s._drawArrow(button, 'up'))
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self._upSecondArrowBtn.bind('<1>',
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lambda event, s=self,button=self._upSecondArrowBtn:
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s._countUp(button, 1))
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self._upSecondArrowBtn.bind('<Any-ButtonRelease-1>',
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lambda event, s=self, button=self._upSecondArrowBtn:
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s._stopUpDown(button))
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# Down hour
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self._downHourArrowBtn.bind('<Configure>',
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lambda event, s=self,button=self._downHourArrowBtn:
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s._drawArrow(button, 'down'))
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self._downHourArrowBtn.bind('<1>',
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lambda event, s=self,button=self._downHourArrowBtn:
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s._countDown(button, 3600))
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self._downHourArrowBtn.bind('<Any-ButtonRelease-1>',
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lambda event, s=self, button=self._downHourArrowBtn:
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s._stopUpDown(button))
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# Down minute
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self._downMinuteArrowBtn.bind('<Configure>',
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lambda event, s=self,button=self._downMinuteArrowBtn:
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s._drawArrow(button, 'down'))
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self._downMinuteArrowBtn.bind('<1>',
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lambda event, s=self,button=self._downMinuteArrowBtn:
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s._countDown(button, 60))
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self._downMinuteArrowBtn.bind('<Any-ButtonRelease-1>',
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lambda event, s=self, button=self._downMinuteArrowBtn:
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s._stopUpDown(button))
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# Down second
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self._downSecondArrowBtn.bind('<Configure>',
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lambda event, s=self,button=self._downSecondArrowBtn:
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s._drawArrow(button, 'down'))
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self._downSecondArrowBtn.bind('<1>',
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lambda event, s=self, button=self._downSecondArrowBtn:
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s._countDown(button,1))
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self._downSecondArrowBtn.bind('<Any-ButtonRelease-1>',
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lambda event, s=self, button=self._downSecondArrowBtn:
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s._stopUpDown(button))
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self._hourCounterEntry.component('entry').bind(
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'<Return>', self._invoke)
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self._minuteCounterEntry.component('entry').bind(
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'<Return>', self._invoke)
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self._secondCounterEntry.component('entry').bind(
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'<Return>', self._invoke)
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self._hourCounterEntry.bind('<Configure>', self._resizeArrow)
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self._minuteCounterEntry.bind('<Configure>', self._resizeArrow)
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self._secondCounterEntry.bind('<Configure>', self._resizeArrow)
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def _drawArrow(self, arrow, direction):
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Pmw.drawarrow(arrow, self['hourentry_foreground'], direction, 'arrow')
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def _resizeArrow(self, event = None):
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for btn in (self._upHourArrowBtn, self._upMinuteArrowBtn,
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self._upSecondArrowBtn,
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self._downHourArrowBtn,
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self._downMinuteArrowBtn, self._downSecondArrowBtn):
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bw = (string.atoi(btn['borderwidth']) +
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string.atoi(btn['highlightthickness']))
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newHeight = self._hourCounterEntry.winfo_reqheight() - 2 * bw
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newWidth = int(newHeight * self['buttonaspect'])
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btn.configure(width=newWidth, height=newHeight)
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self._drawArrow(btn, self.arrowDirection[btn])
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def _min(self):
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min = self['min']
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if min is None:
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self._minVal = 0
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else:
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self._minVal = Pmw.timestringtoseconds(min)
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def _max(self):
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max = self['max']
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if max is None:
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self._maxVal = None
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else:
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self._maxVal = Pmw.timestringtoseconds(max)
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def getvalue(self):
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return self.getstring()
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def setvalue(self, text):
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list = string.split(text, ':')
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if len(list) != 3:
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raise ValueError, 'invalid value: ' + text
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self._hour = string.atoi(list[0])
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self._minute = string.atoi(list[1])
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self._second = string.atoi(list[2])
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self._setHMS()
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def getstring(self):
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return '%02d:%02d:%02d' % (self._hour, self._minute, self._second)
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def getint(self):
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return self._hour * 3600 + self._minute * 60 + self._second
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def _countUp(self, button, increment):
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self._relief = self._upHourArrowBtn.cget('relief')
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button.configure(relief='sunken')
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self._count(1, 'start', increment)
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def _countDown(self, button, increment):
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self._relief = self._downHourArrowBtn.cget('relief')
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button.configure(relief='sunken')
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self._count(-1, 'start', increment)
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def increment(self, seconds = 1):
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self._count(1, 'force', seconds)
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def decrement(self, seconds = 1):
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self._count(-1, 'force', seconds)
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def _count(self, factor, newFlag = None, increment = 1):
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if newFlag != 'force':
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if newFlag is not None:
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self._flag = newFlag
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if self._flag == 'stopped':
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return
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value = (string.atoi(self._hourCounterEntry.get()) *3600) + \
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(string.atoi(self._minuteCounterEntry.get()) *60) + \
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string.atoi(self._secondCounterEntry.get()) + \
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factor * increment
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min = self._minVal
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max = self._maxVal
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if value < min:
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value = min
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if max is not None and value > max:
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value = max
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self._hour = value /3600
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self._minute = (value - (self._hour*3600)) / 60
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self._second = value - (self._hour*3600) - (self._minute*60)
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self._setHMS()
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if newFlag != 'force':
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if self['autorepeat']:
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if self._flag == 'start':
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delay = self['initwait']
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self._flag = 'running'
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else:
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delay = self['repeatrate']
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self._timerId = self.after(
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delay, lambda self=self, factor=factor,increment=increment:
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self._count(factor,'running', increment))
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def _setHMS(self):
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self._hourCounterEntry.setentry('%02d' % self._hour)
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self._minuteCounterEntry.setentry('%02d' % self._minute)
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self._secondCounterEntry.setentry('%02d' % self._second)
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|
||
|
|
def _stopUpDown(self, button):
|
||
|
|
if self._timerId is not None:
|
||
|
|
self.after_cancel(self._timerId)
|
||
|
|
self._timerId = None
|
||
|
|
button.configure(relief=self._relief)
|
||
|
|
self._flag = 'stopped'
|
||
|
|
|
||
|
|
def _invoke(self, event):
|
||
|
|
cmd = self['command']
|
||
|
|
if callable(cmd):
|
||
|
|
cmd()
|
||
|
|
|
||
|
|
def invoke(self):
|
||
|
|
cmd = self['command']
|
||
|
|
if callable(cmd):
|
||
|
|
return cmd()
|
||
|
|
|
||
|
|
def destroy(self):
|
||
|
|
if self._timerId is not None:
|
||
|
|
self.after_cancel(self._timerId)
|
||
|
|
self._timerId = None
|
||
|
|
Pmw.MegaWidget.destroy(self)
|