now locaed in their own sub-package, wx.lib.masked. Demos updated. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@26874 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
		
			
				
	
	
		
			326 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			326 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| #----------------------------------------------------------------------------
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| # Name:         masked.textctrl.py
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| # Authors:      Jeff Childers, Will Sadkin
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| # Email:        jchilders_98@yahoo.com, wsadkin@nameconnector.com
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| # Created:      02/11/2003
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| # Copyright:    (c) 2003 by Jeff Childers, Will Sadkin, 2003
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| # Portions:     (c) 2002 by Will Sadkin, 2002-2003
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| # RCS-ID:       $Id$
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| # License:      wxWidgets license
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| #----------------------------------------------------------------------------
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| #
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| # This file contains the most typically used generic masked control,
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| # masked.TextCtrl.  It also defines the BaseMaskedTextCtrl, which can
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| # be used to derive other "semantics-specific" classes, like masked.NumCtrl,
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| # masked.TimeCtrl, and masked.IpAddrCtrl.
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| #
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| #----------------------------------------------------------------------------
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| import  wx
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| from wx.lib.masked import *
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| 
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| # jmg 12/9/03 - when we cut ties with Py 2.2 and earlier, this would
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| # be a good place to implement the 2.3 logger class
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| from wx.tools.dbg import Logger
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| dbg = Logger()
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| ##dbg(enable=0)
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| 
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| # ## TRICKY BIT: to avoid a ton of boiler-plate, and to
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| # ## automate the getter/setter generation for each valid
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| # ## control parameter so we never forget to add the
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| # ## functions when adding parameters, this loop
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| # ## programmatically adds them to the class:
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| # ## (This makes it easier for Designers like Boa to
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| # ## deal with masked controls.)
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| #
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| # ## To further complicate matters, this is done with an
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| # ## extra level of inheritance, so that "general" classes like
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| # ## MaskedTextCtrl can have all possible attributes,
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| # ## while derived classes, like TimeCtrl and MaskedNumCtrl
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| # ## can prevent exposure of those optional attributes of their base
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| # ## class that do not make sense for their derivation.  Therefore,
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| # ## we define
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| # ##    BaseMaskedTextCtrl(TextCtrl, MaskedEditMixin)
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| # ## and
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| # ##    MaskedTextCtrl(BaseMaskedTextCtrl, MaskedEditAccessorsMixin).
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| # ##
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| # ## This allows us to then derive:
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| # ##    MaskedNumCtrl( BaseMaskedTextCtrl )
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| # ##
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| # ## and not have to expose all the same accessor functions for the
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| # ## derived control when they don't all make sense for it.
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| # ##
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| 
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| class BaseMaskedTextCtrl( wx.TextCtrl, MaskedEditMixin ):
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|     """
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|     This is the primary derivation from MaskedEditMixin.  It provides
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|     a general masked text control that can be configured with different
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|     masks.  It's actually a "base masked textCtrl", so that the
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|     MaskedTextCtrl class can be derived from it, and add those
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|     accessor functions to it that are appropriate to the general class,
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|     whilst other classes can derive from BaseMaskedTextCtrl, and
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|     only define those accessor functions that are appropriate for
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|     those derivations.
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|     """
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| 
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|     def __init__( self, parent, id=-1, value = '',
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|                   pos = wx.DefaultPosition,
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|                   size = wx.DefaultSize,
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|                   style = wx.TE_PROCESS_TAB,
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|                   validator=wx.DefaultValidator,     ## placeholder provided for data-transfer logic
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|                   name = 'maskedTextCtrl',
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|                   setupEventHandling = True,        ## setup event handling by default
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|                   **kwargs):
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| 
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|         wx.TextCtrl.__init__(self, parent, id, value='',
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|                             pos=pos, size = size,
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|                             style=style, validator=validator,
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|                             name=name)
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| 
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|         self.controlInitialized = True
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|         MaskedEditMixin.__init__( self, name, **kwargs )
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| 
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|         self._SetInitialValue(value)
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| 
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|         if setupEventHandling:
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|             ## Setup event handlers
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|             self.Bind(wx.EVT_SET_FOCUS, self._OnFocus )         ## defeat automatic full selection
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|             self.Bind(wx.EVT_KILL_FOCUS, self._OnKillFocus )    ## run internal validator
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|             self.Bind(wx.EVT_LEFT_DCLICK, self._OnDoubleClick)  ## select field under cursor on dclick
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|             self.Bind(wx.EVT_RIGHT_UP, self._OnContextMenu )    ## bring up an appropriate context menu
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|             self.Bind(wx.EVT_KEY_DOWN, self._OnKeyDown )        ## capture control events not normally seen, eg ctrl-tab.
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|             self.Bind(wx.EVT_CHAR, self._OnChar )               ## handle each keypress
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|             self.Bind(wx.EVT_TEXT, self._OnTextChange )         ## color control appropriately & keep
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|                                                                 ## track of previous value for undo
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| 
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| 
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|     def __repr__(self):
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|         return "<BaseMaskedTextCtrl: %s>" % self.GetValue()
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| 
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| 
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|     def _GetSelection(self):
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|         """
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|         Allow mixin to get the text selection of this control.
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|         REQUIRED by any class derived from MaskedEditMixin.
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|         """
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|         return self.GetSelection()
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| 
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|     def _SetSelection(self, sel_start, sel_to):
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|         """
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|         Allow mixin to set the text selection of this control.
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|         REQUIRED by any class derived from MaskedEditMixin.
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|         """
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| ####        dbg("MaskedTextCtrl::_SetSelection(%(sel_start)d, %(sel_to)d)" % locals())
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|         return self.SetSelection( sel_start, sel_to )
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| 
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|     def SetSelection(self, sel_start, sel_to):
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|         """
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|         This is just for debugging...
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|         """
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| ##        dbg("MaskedTextCtrl::SetSelection(%(sel_start)d, %(sel_to)d)" % locals())
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|         wx.TextCtrl.SetSelection(self, sel_start, sel_to)
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| 
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| 
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|     def _GetInsertionPoint(self):
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|         return self.GetInsertionPoint()
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| 
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|     def _SetInsertionPoint(self, pos):
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| ####        dbg("MaskedTextCtrl::_SetInsertionPoint(%(pos)d)" % locals())
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|         self.SetInsertionPoint(pos)
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| 
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|     def SetInsertionPoint(self, pos):
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|         """
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|         This is just for debugging...
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|         """
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| ##        dbg("MaskedTextCtrl::SetInsertionPoint(%(pos)d)" % locals())
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|         wx.TextCtrl.SetInsertionPoint(self, pos)
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| 
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| 
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|     def _GetValue(self):
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|         """
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|         Allow mixin to get the raw value of the control with this function.
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|         REQUIRED by any class derived from MaskedEditMixin.
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|         """
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|         return self.GetValue()
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| 
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|     def _SetValue(self, value):
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|         """
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|         Allow mixin to set the raw value of the control with this function.
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|         REQUIRED by any class derived from MaskedEditMixin.
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|         """
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| ##        dbg('MaskedTextCtrl::_SetValue("%(value)s")' % locals(), indent=1)
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|         # Record current selection and insertion point, for undo
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|         self._prevSelection = self._GetSelection()
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|         self._prevInsertionPoint = self._GetInsertionPoint()
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|         wx.TextCtrl.SetValue(self, value)
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| ##        dbg(indent=0)
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| 
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|     def SetValue(self, value):
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|         """
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|         This function redefines the externally accessible .SetValue to be
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|         a smart "paste" of the text in question, so as not to corrupt the
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|         masked control.  NOTE: this must be done in the class derived
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|         from the base wx control.
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|         """
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| ##        dbg('MaskedTextCtrl::SetValue = "%s"' % value, indent=1)
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| 
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|         if not self._mask:
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|             wx.TextCtrl.SetValue(self, value)    # revert to base control behavior
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|             return
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| 
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|         # empty previous contents, replacing entire value:
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|         self._SetInsertionPoint(0)
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|         self._SetSelection(0, self._masklength)
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|         if self._signOk and self._useParens:
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|             signpos = value.find('-')
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|             if signpos != -1:
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|                 value = value[:signpos] + '(' + value[signpos+1:].strip() + ')'
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|             elif value.find(')') == -1 and len(value) < self._masklength:
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|                 value += ' '    # add place holder for reserved space for right paren
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| 
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|         if( len(value) < self._masklength                # value shorter than control
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|             and (self._isFloat or self._isInt)            # and it's a numeric control
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|             and self._ctrl_constraints._alignRight ):   # and it's a right-aligned control
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| 
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| ##            dbg('len(value)', len(value), ' < self._masklength', self._masklength)
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|             # try to intelligently "pad out" the value to the right size:
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|             value = self._template[0:self._masklength - len(value)] + value
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|             if self._isFloat and value.find('.') == -1:
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|                 value = value[1:]
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| ##            dbg('padded value = "%s"' % value)
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| 
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|         # make SetValue behave the same as if you had typed the value in:
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|         try:
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|             value = self._Paste(value, raise_on_invalid=True, just_return_value=True)
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|             if self._isFloat:
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|                 self._isNeg = False     # (clear current assumptions)
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|                 value = self._adjustFloat(value)
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|             elif self._isInt:
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|                 self._isNeg = False     # (clear current assumptions)
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|                 value = self._adjustInt(value)
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|             elif self._isDate and not self.IsValid(value) and self._4digityear:
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|                 value = self._adjustDate(value, fixcentury=True)
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|         except ValueError:
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|             # If date, year might be 2 digits vs. 4; try adjusting it:
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|             if self._isDate and self._4digityear:
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|                 dateparts = value.split(' ')
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|                 dateparts[0] = self._adjustDate(dateparts[0], fixcentury=True)
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|                 value = string.join(dateparts, ' ')
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| ##                dbg('adjusted value: "%s"' % value)
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|                 value = self._Paste(value, raise_on_invalid=True, just_return_value=True)
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|             else:
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| ##                dbg('exception thrown', indent=0)
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|                 raise
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| 
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|         self._SetValue(value)   # note: to preserve similar capability, .SetValue()
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|                                 # does not change IsModified()
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| ####        dbg('queuing insertion after .SetValue', self._masklength)
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|         wx.CallAfter(self._SetInsertionPoint, self._masklength)
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|         wx.CallAfter(self._SetSelection, self._masklength, self._masklength)
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| ##        dbg(indent=0)
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| 
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| 
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|     def Clear(self):
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|         """ Blanks the current control value by replacing it with the default value."""
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| ##        dbg("MaskedTextCtrl::Clear - value reset to default value (template)")
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|         if self._mask:
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|             self.ClearValue()
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|         else:
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|             wx.TextCtrl.Clear(self)    # else revert to base control behavior
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| 
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| 
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|     def _Refresh(self):
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|         """
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|         Allow mixin to refresh the base control with this function.
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|         REQUIRED by any class derived from MaskedEditMixin.
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|         """
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| ##        dbg('MaskedTextCtrl::_Refresh', indent=1)
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|         wx.TextCtrl.Refresh(self)
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| ##        dbg(indent=0)
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| 
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| 
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|     def Refresh(self):
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|         """
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|         This function redefines the externally accessible .Refresh() to
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|         validate the contents of the masked control as it refreshes.
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|         NOTE: this must be done in the class derived from the base wx control.
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|         """
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| ##        dbg('MaskedTextCtrl::Refresh', indent=1)
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|         self._CheckValid()
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|         self._Refresh()
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| ##        dbg(indent=0)
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| 
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| 
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|     def _IsEditable(self):
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|         """
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|         Allow mixin to determine if the base control is editable with this function.
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|         REQUIRED by any class derived from MaskedEditMixin.
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|         """
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|         return wx.TextCtrl.IsEditable(self)
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| 
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| 
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|     def Cut(self):
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|         """
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|         This function redefines the externally accessible .Cut to be
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|         a smart "erase" of the text in question, so as not to corrupt the
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|         masked control.  NOTE: this must be done in the class derived
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|         from the base wx control.
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|         """
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|         if self._mask:
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|             self._Cut()             # call the mixin's Cut method
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|         else:
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|             wx.TextCtrl.Cut(self)    # else revert to base control behavior
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| 
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| 
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|     def Paste(self):
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|         """
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|         This function redefines the externally accessible .Paste to be
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|         a smart "paste" of the text in question, so as not to corrupt the
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|         masked control.  NOTE: this must be done in the class derived
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|         from the base wx control.
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|         """
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|         if self._mask:
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|             self._Paste()                   # call the mixin's Paste method
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|         else:
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|             wx.TextCtrl.Paste(self, value)   # else revert to base control behavior
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| 
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| 
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|     def Undo(self):
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|         """
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|         This function defines the undo operation for the control. (The default
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|         undo is 1-deep.)
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|         """
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|         if self._mask:
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|             self._Undo()
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|         else:
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|             wx.TextCtrl.Undo(self)   # else revert to base control behavior
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| 
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| 
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|     def IsModified(self):
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|         """
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|         This function overrides the raw wxTextCtrl method, because the
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|         masked edit mixin uses SetValue to change the value, which doesn't
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|         modify the state of this attribute.  So, we keep track on each
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|         keystroke to see if the value changes, and if so, it's been
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|         modified.
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|         """
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|         return wx.TextCtrl.IsModified(self) or self.modified
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| 
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| 
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|     def _CalcSize(self, size=None):
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|         """
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|         Calculate automatic size if allowed; use base mixin function.
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|         """
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|         return self._calcSize(size)
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| 
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| 
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| class TextCtrl( BaseMaskedTextCtrl, MaskedEditAccessorsMixin ):
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|     """
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|     This extra level of inheritance allows us to add the generic set of
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|     masked edit parameters only to this class while allowing other
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|     classes to derive from the "base" masked text control, and provide
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|     a smaller set of valid accessor functions.
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|     """
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|     pass
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| 
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| 
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