#---------------------------------------------------------------------------- # Name: wxPython.lib.masked.numctrl.py # Author: Will Sadkin # Created: 09/06/2003 # Copyright: (c) 2003 by Will Sadkin # RCS-ID: $Id$ # License: wxWidgets license #---------------------------------------------------------------------------- # NOTE: # This was written to provide a numeric edit control for wxPython that # does things like right-insert (like a calculator), and does grouping, etc. # (ie. the features of masked.TextCtrl), but allows Get/Set of numeric # values, rather than text. # # Masked.NumCtrl permits integer, and floating point values to be set # retrieved or set via .GetValue() and .SetValue() (type chosen based on # fraction width, and provides an masked.EVT_NUM() event function for trapping # changes to the control. # # It supports negative numbers as well as the naturals, and has the option # of not permitting leading zeros or an empty control; if an empty value is # not allowed, attempting to delete the contents of the control will result # in a (selected) value of zero, thus preserving a legitimate numeric value. # Similarly, replacing the contents of the control with '-' will result in # a selected (absolute) value of -1. # # masked.NumCtrl also supports range limits, with the option of either # enforcing them or simply coloring the text of the control if the limits # are exceeded. # # masked.NumCtrl is intended to support fixed-point numeric entry, and # is derived from BaseMaskedTextCtrl. As such, it supports a limited range # of values to comply with a fixed-width entry mask. #---------------------------------------------------------------------------- # 12/09/2003 - Jeff Grimmett (grimmtooth@softhome.net) # # o Updated for wx namespace # # 12/20/2003 - Jeff Grimmett (grimmtooth@softhome.net) # # o wxMaskedEditMixin -> MaskedEditMixin # o wxMaskedTextCtrl -> masked.TextCtrl # o wxMaskedNumNumberUpdatedEvent -> masked.NumberUpdatedEvent # o wxMaskedNumCtrl -> masked.NumCtrl # """

masked.NumCtrl:

Being derived from MaskedTextCtrl, the control only allows fixed-point notation. That is, it has a fixed (though reconfigurable) maximum width for the integer portion and optional fixed width fractional portion.

Here's the API:

    masked.NumCtrl(
         parent, id = -1,
         value = 0,
         pos = wx.DefaultPosition,
         size = wx.DefaultSize,
         style = 0,
         validator = wx.DefaultValidator,
         name = "masked.number",
         integerWidth = 10,
         fractionWidth = 0,
         allowNone = False,
         allowNegative = True,
         useParensForNegatives = False,
         groupDigits = False,
         groupChar = ',',
         decimalChar = '.',
         min = None,
         max = None,
         limited = False,
         selectOnEntry = True,
         foregroundColour = "Black",
         signedForegroundColour = "Red",
         emptyBackgroundColour = "White",
         validBackgroundColour = "White",
         invalidBackgroundColour = "Yellow",
         autoSize = True
         )


masked.EVT_NUM(win, id, func)
Respond to a EVT_COMMAND_MASKED_NUMBER_UPDATED event, generated when the value changes. Notice that this event will always be sent when the control's contents changes - whether this is due to user input or comes from the program itself (for example, if SetValue() is called.)

SetValue(int|long|float|string)
Sets the value of the control to the value specified, if possible. The resulting actual value of the control may be altered to conform to the format of the control, changed to conform with the bounds set on the control if limited, or colored if not limited but the value is out-of-bounds. A ValueError exception will be raised if an invalid value is specified.
GetValue()
Retrieves the numeric value from the control. The value retrieved will be either be returned as a long if the fractionWidth is 0, or a float otherwise.

SetParameters(**kwargs)
Allows simultaneous setting of various attributes of the control after construction. Keyword arguments allowed are the same parameters as supported in the constructor.

SetIntegerWidth(value)
Resets the width of the integer portion of the control. The value must be >= 1, or an AttributeError exception will result. This value should account for any grouping characters that might be inserted (if grouping is enabled), but does not need to account for the sign, as that is handled separately by the control.
GetIntegerWidth()
Returns the current width of the integer portion of the control, not including any reserved sign position.

SetFractionWidth(value)
Resets the width of the fractional portion of the control. The value must be >= 0, or an AttributeError exception will result. If 0, the current value of the control will be truncated to an integer value.
GetFractionWidth()
Returns the current width of the fractional portion of the control.

SetMin(min=None)
Resets the minimum value of the control. If a value of None is provided, then the control will have no explicit minimum value. If the value specified is greater than the current maximum value, then the function returns False and the minimum will not change from its current setting. On success, the function returns True.
If successful and the current value is lower than the new lower bound, if the control is limited, the value will be automatically adjusted to the new minimum value; if not limited, the value in the control will be colored as invalid.
If min > the max value allowed by the width of the control, the function will return False, and the min will not be set.
GetMin()
Gets the current lower bound value for the control. It will return None if no lower bound is currently specified.

SetMax(max=None)
Resets the maximum value of the control. If a value of None is provided, then the control will have no explicit maximum value. If the value specified is less than the current minimum value, then the function returns False and the maximum will not change from its current setting. On success, the function returns True.
If successful and the current value is greater than the new upper bound, if the control is limited the value will be automatically adjusted to this maximum value; if not limited, the value in the control will be colored as invalid.
If max > the max value allowed by the width of the control, the function will return False, and the max will not be set.
GetMax()
Gets the current upper bound value for the control. It will return None if no upper bound is currently specified.

SetBounds(min=None,max=None)
This function is a convenience function for setting the min and max values at the same time. The function only applies the maximum bound if setting the minimum bound is successful, and returns True only if both operations succeed. Note: leaving out an argument will remove the corresponding bound.
GetBounds()
This function returns a two-tuple (min,max), indicating the current bounds of the control. Each value can be None if that bound is not set.

IsInBounds(value=None)
Returns True if no value is specified and the current value of the control falls within the current bounds. This function can also be called with a value to see if that value would fall within the current bounds of the given control.

SetLimited(bool)
If called with a value of True, this function will cause the control to limit the value to fall within the bounds currently specified. If the control's value currently exceeds the bounds, it will then be limited accordingly. If called with a value of False, this function will disable value limiting, but coloring of out-of-bounds values will still take place if bounds have been set for the control.
GetLimited()
IsLimited()
Returns True if the control is currently limiting the value to fall within the current bounds.

SetAllowNone(bool)
If called with a value of True, this function will cause the control to allow the value to be empty, representing a value of None. If called with a value of False, this function will prevent the value from being None. If the value of the control is currently None, ie. the control is empty, then the value will be changed to that of the lower bound of the control, or 0 if no lower bound is set.
GetAllowNone()
IsNoneAllowed()
Returns True if the control currently allows its value to be None.

SetAllowNegative(bool)
If called with a value of True, this function will cause the control to allow the value to be negative (and reserve space for displaying the sign. If called with a value of False, and the value of the control is currently negative, the value of the control will be converted to the absolute value, and then limited appropriately based on the existing bounds of the control (if any).
GetAllowNegative()
IsNegativeAllowed()
Returns True if the control currently permits values to be negative.

SetGroupDigits(bool)
If called with a value of True, this will make the control automatically add and manage grouping characters to the presented value in integer portion of the control.
GetGroupDigits()
IsGroupingAllowed()
Returns True if the control is currently set to group digits.

SetGroupChar()
Sets the grouping character for the integer portion of the control. (The default grouping character this is ','.
GetGroupChar()
Returns the current grouping character for the control.

SetSelectOnEntry()
If called with a value of True, this will make the control automatically select the contents of each field as it is entered within the control. (The default is True.)
GetSelectOnEntry()
Returns True if the control currently auto selects the field values on entry.

SetAutoSize(bool)
Resets the autoSize attribute of the control.
GetAutoSize()
Returns the current state of the autoSize attribute for the control.

""" import copy import string import types import wx from sys import maxint MAXINT = maxint # (constants should be in upper case) MININT = -maxint-1 from wx.tools.dbg import Logger from wx.lib.masked import MaskedEditMixin, Field, BaseMaskedTextCtrl dbg = Logger() ##dbg(enable=1) #---------------------------------------------------------------------------- wxEVT_COMMAND_MASKED_NUMBER_UPDATED = wx.NewEventType() EVT_NUM = wx.PyEventBinder(wxEVT_COMMAND_MASKED_NUMBER_UPDATED, 1) #---------------------------------------------------------------------------- class NumberUpdatedEvent(wx.PyCommandEvent): def __init__(self, id, value = 0, object=None): wx.PyCommandEvent.__init__(self, wxEVT_COMMAND_MASKED_NUMBER_UPDATED, id) self.__value = value self.SetEventObject(object) def GetValue(self): """Retrieve the value of the control at the time this event was generated.""" return self.__value #---------------------------------------------------------------------------- class NumCtrlAccessorsMixin: # Define masked.NumCtrl's list of attributes having their own # Get/Set functions, ignoring those that make no sense for # an numeric control. exposed_basectrl_params = ( 'decimalChar', 'shiftDecimalChar', 'groupChar', 'useParensForNegatives', 'defaultValue', 'description', 'useFixedWidthFont', 'autoSize', 'signedForegroundColour', 'emptyBackgroundColour', 'validBackgroundColour', 'invalidBackgroundColour', 'emptyInvalid', 'validFunc', 'validRequired', ) for param in exposed_basectrl_params: propname = param[0].upper() + param[1:] exec('def Set%s(self, value): self.SetCtrlParameters(%s=value)' % (propname, param)) exec('def Get%s(self): return self.GetCtrlParameter("%s")''' % (propname, param)) if param.find('Colour') != -1: # add non-british spellings, for backward-compatibility propname.replace('Colour', 'Color') exec('def Set%s(self, value): self.SetCtrlParameters(%s=value)' % (propname, param)) exec('def Get%s(self): return self.GetCtrlParameter("%s")''' % (propname, param)) #---------------------------------------------------------------------------- class NumCtrl(BaseMaskedTextCtrl, NumCtrlAccessorsMixin): valid_ctrl_params = { 'integerWidth': 10, # by default allow all 32-bit integers 'fractionWidth': 0, # by default, use integers 'decimalChar': '.', # by default, use '.' for decimal point 'allowNegative': True, # by default, allow negative numbers 'useParensForNegatives': False, # by default, use '-' to indicate negatives 'groupDigits': True, # by default, don't insert grouping 'groupChar': ',', # by default, use ',' for grouping 'min': None, # by default, no bounds set 'max': None, 'limited': False, # by default, no limiting even if bounds set 'allowNone': False, # by default, don't allow empty value 'selectOnEntry': True, # by default, select the value of each field on entry 'foregroundColour': "Black", 'signedForegroundColour': "Red", 'emptyBackgroundColour': "White", 'validBackgroundColour': "White", 'invalidBackgroundColour': "Yellow", 'useFixedWidthFont': True, # by default, use a fixed-width font 'autoSize': True, # by default, set the width of the control based on the mask } def __init__ ( self, parent, id=-1, value = 0, pos = wx.DefaultPosition, size = wx.DefaultSize, style = wx.TE_PROCESS_TAB, validator = wx.DefaultValidator, name = "masked.num", **kwargs ): ## dbg('masked.NumCtrl::__init__', indent=1) # Set defaults for control: ## dbg('setting defaults:') for key, param_value in NumCtrl.valid_ctrl_params.items(): # This is done this way to make setattr behave consistently with # "private attribute" name mangling setattr(self, '_' + key, copy.copy(param_value)) # Assign defaults for all attributes: init_args = copy.deepcopy(NumCtrl.valid_ctrl_params) ## dbg('kwargs:', kwargs) for key, param_value in kwargs.items(): key = key.replace('Color', 'Colour') if key not in NumCtrl.valid_ctrl_params.keys(): raise AttributeError('invalid keyword argument "%s"' % key) else: init_args[key] = param_value ## dbg('init_args:', indent=1) for key, param_value in init_args.items(): ## dbg('%s:' % key, param_value) pass ## dbg(indent=0) # Process initial fields for the control, as part of construction: if type(init_args['integerWidth']) != types.IntType: raise AttributeError('invalid integerWidth (%s) specified; expected integer' % repr(init_args['integerWidth'])) elif init_args['integerWidth'] < 1: raise AttributeError('invalid integerWidth (%s) specified; must be > 0' % repr(init_args['integerWidth'])) fields = {} if init_args.has_key('fractionWidth'): if type(init_args['fractionWidth']) != types.IntType: raise AttributeError('invalid fractionWidth (%s) specified; expected integer' % repr(self._fractionWidth)) elif init_args['fractionWidth'] < 0: raise AttributeError('invalid fractionWidth (%s) specified; must be >= 0' % repr(init_args['fractionWidth'])) self._fractionWidth = init_args['fractionWidth'] if self._fractionWidth: fracmask = '.' + '#{%d}' % self._fractionWidth ## dbg('fracmask:', fracmask) fields[1] = Field(defaultValue='0'*self._fractionWidth) else: fracmask = '' self._integerWidth = init_args['integerWidth'] if init_args['groupDigits']: self._groupSpace = (self._integerWidth - 1) / 3 else: self._groupSpace = 0 intmask = '#{%d}' % (self._integerWidth + self._groupSpace) if self._fractionWidth: emptyInvalid = False else: emptyInvalid = True fields[0] = Field(formatcodes='r<>', emptyInvalid=emptyInvalid) ## dbg('intmask:', intmask) # don't bother to reprocess these arguments: del init_args['integerWidth'] del init_args['fractionWidth'] self._autoSize = init_args['autoSize'] if self._autoSize: formatcodes = 'FR<' else: formatcodes = 'R<' mask = intmask+fracmask # initial value of state vars self._oldvalue = 0 self._integerEnd = 0 self._typedSign = False # Construct the base control: BaseMaskedTextCtrl.__init__( self, parent, id, '', pos, size, style, validator, name, mask = mask, formatcodes = formatcodes, fields = fields, validFunc=self.IsInBounds, setupEventHandling = False) self.Bind(wx.EVT_SET_FOCUS, self._OnFocus ) ## defeat automatic full selection self.Bind(wx.EVT_KILL_FOCUS, self._OnKillFocus ) ## run internal validator self.Bind(wx.EVT_LEFT_DCLICK, self._OnDoubleClick) ## select field under cursor on dclick self.Bind(wx.EVT_RIGHT_UP, self._OnContextMenu ) ## bring up an appropriate context menu self.Bind(wx.EVT_KEY_DOWN, self._OnKeyDown ) ## capture control events not normally seen, eg ctrl-tab. self.Bind(wx.EVT_CHAR, self._OnChar ) ## handle each keypress self.Bind(wx.EVT_TEXT, self.OnTextChange ) ## color control appropriately & keep ## track of previous value for undo # Establish any additional parameters, with appropriate error checking self.SetParameters(**init_args) # Set the value requested (if possible) ## wxCallAfter(self.SetValue, value) self.SetValue(value) # Ensure proper coloring: self.Refresh() ## dbg('finished NumCtrl::__init__', indent=0) def SetParameters(self, **kwargs): """ This routine is used to initialize and reconfigure the control: """ ## dbg('NumCtrl::SetParameters', indent=1) maskededit_kwargs = {} reset_fraction_width = False if( (kwargs.has_key('integerWidth') and kwargs['integerWidth'] != self._integerWidth) or (kwargs.has_key('fractionWidth') and kwargs['fractionWidth'] != self._fractionWidth) or (kwargs.has_key('groupDigits') and kwargs['groupDigits'] != self._groupDigits) or (kwargs.has_key('autoSize') and kwargs['autoSize'] != self._autoSize) ): fields = {} if kwargs.has_key('fractionWidth'): if type(kwargs['fractionWidth']) != types.IntType: raise AttributeError('invalid fractionWidth (%s) specified; expected integer' % repr(kwargs['fractionWidth'])) elif kwargs['fractionWidth'] < 0: raise AttributeError('invalid fractionWidth (%s) specified; must be >= 0' % repr(kwargs['fractionWidth'])) else: if self._fractionWidth != kwargs['fractionWidth']: self._fractionWidth = kwargs['fractionWidth'] if self._fractionWidth: fracmask = '.' + '#{%d}' % self._fractionWidth fields[1] = Field(defaultValue='0'*self._fractionWidth) emptyInvalid = False else: emptyInvalid = True fracmask = '' ## dbg('fracmask:', fracmask) if kwargs.has_key('integerWidth'): if type(kwargs['integerWidth']) != types.IntType: ## dbg(indent=0) raise AttributeError('invalid integerWidth (%s) specified; expected integer' % repr(kwargs['integerWidth'])) elif kwargs['integerWidth'] < 0: ## dbg(indent=0) raise AttributeError('invalid integerWidth (%s) specified; must be > 0' % repr(kwargs['integerWidth'])) else: self._integerWidth = kwargs['integerWidth'] if kwargs.has_key('groupDigits'): self._groupDigits = kwargs['groupDigits'] if self._groupDigits: self._groupSpace = (self._integerWidth - 1) / 3 else: self._groupSpace = 0 intmask = '#{%d}' % (self._integerWidth + self._groupSpace) ## dbg('intmask:', intmask) fields[0] = Field(formatcodes='r<>', emptyInvalid=emptyInvalid) maskededit_kwargs['fields'] = fields # don't bother to reprocess these arguments: if kwargs.has_key('integerWidth'): del kwargs['integerWidth'] if kwargs.has_key('fractionWidth'): del kwargs['fractionWidth'] maskededit_kwargs['mask'] = intmask+fracmask if kwargs.has_key('groupChar') or kwargs.has_key('decimalChar'): old_groupchar = self._groupChar # save so we can reformat properly old_decimalchar = self._decimalChar ## dbg("old_groupchar: '%s'" % old_groupchar) ## dbg("old_decimalchar: '%s'" % old_decimalchar) groupchar = old_groupchar decimalchar = old_decimalchar if kwargs.has_key('groupChar'): maskededit_kwargs['groupChar'] = kwargs['groupChar'] groupchar = kwargs['groupChar'] if kwargs.has_key('decimalChar'): maskededit_kwargs['decimalChar'] = kwargs['decimalChar'] decimalchar = kwargs['decimalChar'] # Add sanity check to make sure these are distinct, and if not, # raise attribute error if groupchar == decimalchar: raise AttributeError('groupChar and decimalChar must be distinct') # for all other parameters, assign keyword args as appropriate: for key, param_value in kwargs.items(): key = key.replace('Color', 'Colour') if key not in NumCtrl.valid_ctrl_params.keys(): raise AttributeError('invalid keyword argument "%s"' % key) elif key not in MaskedEditMixin.valid_ctrl_params.keys(): setattr(self, '_' + key, param_value) elif key in ('mask', 'autoformat'): # disallow explicit setting of mask raise AttributeError('invalid keyword argument "%s"' % key) else: maskededit_kwargs[key] = param_value ## dbg('kwargs:', kwargs) # reprocess existing format codes to ensure proper resulting format: formatcodes = self.GetCtrlParameter('formatcodes') if kwargs.has_key('allowNegative'): if kwargs['allowNegative'] and '-' not in formatcodes: formatcodes += '-' maskededit_kwargs['formatcodes'] = formatcodes elif not kwargs['allowNegative'] and '-' in formatcodes: formatcodes = formatcodes.replace('-','') maskededit_kwargs['formatcodes'] = formatcodes if kwargs.has_key('groupDigits'): if kwargs['groupDigits'] and ',' not in formatcodes: formatcodes += ',' maskededit_kwargs['formatcodes'] = formatcodes elif not kwargs['groupDigits'] and ',' in formatcodes: formatcodes = formatcodes.replace(',','') maskededit_kwargs['formatcodes'] = formatcodes if kwargs.has_key('selectOnEntry'): self._selectOnEntry = kwargs['selectOnEntry'] ## dbg("kwargs['selectOnEntry']?", kwargs['selectOnEntry'], "'S' in formatcodes?", 'S' in formatcodes) if kwargs['selectOnEntry'] and 'S' not in formatcodes: formatcodes += 'S' maskededit_kwargs['formatcodes'] = formatcodes elif not kwargs['selectOnEntry'] and 'S' in formatcodes: formatcodes = formatcodes.replace('S','') maskededit_kwargs['formatcodes'] = formatcodes if kwargs.has_key('autoSize'): self._autoSize = kwargs['autoSize'] if kwargs['autoSize'] and 'F' not in formatcodes: formatcodes += 'F' maskededit_kwargs['formatcodes'] = formatcodes elif not kwargs['autoSize'] and 'F' in formatcodes: formatcodes = formatcodes.replace('F', '') maskededit_kwargs['formatcodes'] = formatcodes if 'r' in formatcodes and self._fractionWidth: # top-level mask should only be right insert if no fractional # part will be shown; ie. if reconfiguring control, remove # previous "global" setting. formatcodes = formatcodes.replace('r', '') maskededit_kwargs['formatcodes'] = formatcodes if kwargs.has_key('limited'): if kwargs['limited'] and not self._limited: maskededit_kwargs['validRequired'] = True elif not kwargs['limited'] and self._limited: maskededit_kwargs['validRequired'] = False self._limited = kwargs['limited'] ## dbg('maskededit_kwargs:', maskededit_kwargs) if maskededit_kwargs.keys(): self.SetCtrlParameters(**maskededit_kwargs) # Record end of integer and place cursor there: integerEnd = self._fields[0]._extent[1] self.SetInsertionPoint(0) self.SetInsertionPoint(integerEnd) self.SetSelection(integerEnd, integerEnd) # Go ensure all the format codes necessary are present: orig_intformat = intformat = self.GetFieldParameter(0, 'formatcodes') if 'r' not in intformat: intformat += 'r' if '>' not in intformat: intformat += '>' if intformat != orig_intformat: if self._fractionWidth: self.SetFieldParameters(0, formatcodes=intformat) else: self.SetCtrlParameters(formatcodes=intformat) # Set min and max as appropriate: if kwargs.has_key('min'): min = kwargs['min'] if( self._max is None or min is None or (self._max is not None and self._max >= min) ): ## dbg('examining min') if min is not None: try: textmin = self._toGUI(min, apply_limits = False) except ValueError: ## dbg('min will not fit into control; ignoring', indent=0) raise ## dbg('accepted min') self._min = min else: ## dbg('ignoring min') pass if kwargs.has_key('max'): max = kwargs['max'] if( self._min is None or max is None or (self._min is not None and self._min <= max) ): ## dbg('examining max') if max is not None: try: textmax = self._toGUI(max, apply_limits = False) except ValueError: ## dbg('max will not fit into control; ignoring', indent=0) raise ## dbg('accepted max') self._max = max else: ## dbg('ignoring max') pass if kwargs.has_key('allowNegative'): self._allowNegative = kwargs['allowNegative'] # Ensure current value of control obeys any new restrictions imposed: text = self._GetValue() ## dbg('text value: "%s"' % text) if kwargs.has_key('groupChar') and text.find(old_groupchar) != -1: text = text.replace(old_groupchar, self._groupChar) if kwargs.has_key('decimalChar') and text.find(old_decimalchar) != -1: text = text.replace(old_decimalchar, self._decimalChar) if text != self._GetValue(): wx.TextCtrl.SetValue(self, text) value = self.GetValue() ## dbg('self._allowNegative?', self._allowNegative) if not self._allowNegative and self._isNeg: value = abs(value) ## dbg('abs(value):', value) self._isNeg = False elif not self._allowNone and BaseMaskedTextCtrl.GetValue(self) == '': if self._min > 0: value = self._min else: value = 0 sel_start, sel_to = self.GetSelection() if self.IsLimited() and self._min is not None and value < self._min: ## dbg('Set to min value:', self._min) self._SetValue(self._toGUI(self._min)) elif self.IsLimited() and self._max is not None and value > self._max: ## dbg('Setting to max value:', self._max) self._SetValue(self._toGUI(self._max)) else: # reformat current value as appropriate to possibly new conditions ## dbg('Reformatting value:', value) sel_start, sel_to = self.GetSelection() self._SetValue(self._toGUI(value)) self.Refresh() # recolor as appropriate ## dbg('finished NumCtrl::SetParameters', indent=0) def _GetNumValue(self, value): """ This function attempts to "clean up" a text value, providing a regularized convertable string, via atol() or atof(), for any well-formed numeric text value. """ return value.replace(self._groupChar, '').replace(self._decimalChar, '.').replace('(', '-').replace(')','').strip() def GetFraction(self, candidate=None): """ Returns the fractional portion of the value as a float. If there is no fractional portion, the value returned will be 0.0. """ if not self._fractionWidth: return 0.0 else: fracstart, fracend = self._fields[1]._extent if candidate is None: value = self._toGUI(BaseMaskedTextCtrl.GetValue(self)) else: value = self._toGUI(candidate) fracstring = value[fracstart:fracend].strip() if not value: return 0.0 else: return string.atof(fracstring) def _OnChangeSign(self, event): ## dbg('NumCtrl::_OnChangeSign', indent=1) self._typedSign = True MaskedEditMixin._OnChangeSign(self, event) ## dbg(indent=0) def _disallowValue(self): ## dbg('NumCtrl::_disallowValue') # limited and -1 is out of bounds if self._typedSign: self._isNeg = False if not wx.Validator_IsSilent(): wx.Bell() sel_start, sel_to = self._GetSelection() ## dbg('queuing reselection of (%d, %d)' % (sel_start, sel_to)) wx.CallAfter(self.SetInsertionPoint, sel_start) # preserve current selection/position wx.CallAfter(self.SetSelection, sel_start, sel_to) def _SetValue(self, value): """ This routine supersedes the base masked control _SetValue(). It is needed to ensure that the value of the control is always representable/convertable to a numeric return value (via GetValue().) This routine also handles automatic adjustment and grouping of the value without explicit intervention by the user. """ ## dbg('NumCtrl::_SetValue("%s")' % value, indent=1) if( (self._fractionWidth and value.find(self._decimalChar) == -1) or (self._fractionWidth == 0 and value.find(self._decimalChar) != -1) ) : value = self._toGUI(value) numvalue = self._GetNumValue(value) ## dbg('cleansed value: "%s"' % numvalue) replacement = None if numvalue == "": if self._allowNone: ## dbg('calling base BaseMaskedTextCtrl._SetValue(self, "%s")' % value) BaseMaskedTextCtrl._SetValue(self, value) self.Refresh() return elif self._min > 0 and self.IsLimited(): replacement = self._min else: replacement = 0 ## dbg('empty value; setting replacement:', replacement) if replacement is None: # Go get the integer portion about to be set and verify its validity intstart, intend = self._fields[0]._extent ## dbg('intstart, intend:', intstart, intend) ## dbg('raw integer:"%s"' % value[intstart:intend]) int = self._GetNumValue(value[intstart:intend]) numval = self._fromGUI(value) ## dbg('integer: "%s"' % int) try: fracval = self.GetFraction(value) except ValueError, e: ## dbg('Exception:', e, 'must be out of bounds; disallow value') self._disallowValue() ## dbg(indent=0) return if fracval == 0.0: ## dbg('self._isNeg?', self._isNeg) if int == '-' and self._oldvalue < 0 and not self._typedSign: ## dbg('just a negative sign; old value < 0; setting replacement of 0') replacement = 0 self._isNeg = False elif int[:2] == '-0' and self._fractionWidth == 0: if self._oldvalue < 0: ## dbg('-0; setting replacement of 0') replacement = 0 self._isNeg = False elif not self._limited or (self._min < -1 and self._max >= -1): ## dbg('-0; setting replacement of -1') replacement = -1 self._isNeg = True else: # limited and -1 is out of bounds self._disallowValue() ## dbg(indent=0) return elif int == '-' and (self._oldvalue >= 0 or self._typedSign) and self._fractionWidth == 0: if not self._limited or (self._min < -1 and self._max >= -1): ## dbg('just a negative sign; setting replacement of -1') replacement = -1 else: # limited and -1 is out of bounds self._disallowValue() ## dbg(indent=0) return elif( self._typedSign and int.find('-') != -1 and self._limited and not self._min <= numval <= self._max): # changed sign resulting in value that's now out-of-bounds; # disallow self._disallowValue() ## dbg(indent=0) return if replacement is None: if int and int != '-': try: string.atol(int) except ValueError: # integer requested is not legal. This can happen if the user # is attempting to insert a digit in the middle of the control # resulting in something like " 3 45". Disallow such actions: ## dbg('>>>>>>>>>>>>>>>> "%s" does not convert to a long!' % int) if not wx.Validator_IsSilent(): wx.Bell() sel_start, sel_to = self._GetSelection() ## dbg('queuing reselection of (%d, %d)' % (sel_start, sel_to)) wx.CallAfter(self.SetInsertionPoint, sel_start) # preserve current selection/position wx.CallAfter(self.SetSelection, sel_start, sel_to) ## dbg(indent=0) return if int[0] == '0' and len(int) > 1: ## dbg('numvalue: "%s"' % numvalue.replace(' ', '')) if self._fractionWidth: value = self._toGUI(string.atof(numvalue)) else: value = self._toGUI(string.atol(numvalue)) ## dbg('modified value: "%s"' % value) self._typedSign = False # reset state var if replacement is not None: # Value presented wasn't a legal number, but control should do something # reasonable instead: ## dbg('setting replacement value:', replacement) self._SetValue(self._toGUI(replacement)) sel_start = BaseMaskedTextCtrl.GetValue(self).find(str(abs(replacement))) # find where it put the 1, so we can select it sel_to = sel_start + len(str(abs(replacement))) ## dbg('queuing selection of (%d, %d)' %(sel_start, sel_to)) wx.CallAfter(self.SetInsertionPoint, sel_start) wx.CallAfter(self.SetSelection, sel_start, sel_to) ## dbg(indent=0) return # Otherwise, apply appropriate formatting to value: # Because we're intercepting the value and adjusting it # before a sign change is detected, we need to do this here: if '-' in value or '(' in value: self._isNeg = True else: self._isNeg = False ## dbg('value:"%s"' % value, 'self._useParens:', self._useParens) if self._fractionWidth: adjvalue = self._adjustFloat(self._GetNumValue(value).replace('.',self._decimalChar)) else: adjvalue = self._adjustInt(self._GetNumValue(value)) ## dbg('adjusted value: "%s"' % adjvalue) sel_start, sel_to = self._GetSelection() # record current insertion point ## dbg('calling BaseMaskedTextCtrl._SetValue(self, "%s")' % adjvalue) BaseMaskedTextCtrl._SetValue(self, adjvalue) # After all actions so far scheduled, check that resulting cursor # position is appropriate, and move if not: wx.CallAfter(self._CheckInsertionPoint) ## dbg('finished NumCtrl::_SetValue', indent=0) def _CheckInsertionPoint(self): # If current insertion point is before the end of the integer and # its before the 1st digit, place it just after the sign position: ## dbg('NumCtrl::CheckInsertionPoint', indent=1) sel_start, sel_to = self._GetSelection() text = self._GetValue() if sel_to < self._fields[0]._extent[1] and text[sel_to] in (' ', '-', '('): text, signpos, right_signpos = self._getSignedValue() ## dbg('setting selection(%d, %d)' % (signpos+1, signpos+1)) self.SetInsertionPoint(signpos+1) self.SetSelection(signpos+1, signpos+1) ## dbg(indent=0) def _OnErase( self, event=None, just_return_value=False ): """ This overrides the base control _OnErase, so that erasing around grouping characters auto selects the digit before or after the grouping character, so that the erasure does the right thing. """ ## dbg('NumCtrl::_OnErase', indent=1) if event is None: # called as action routine from Cut() operation. key = wx.WXK_DELETE else: key = event.GetKeyCode() #if grouping digits, make sure deletes next to group char always # delete next digit to appropriate side: if self._groupDigits: value = BaseMaskedTextCtrl.GetValue(self) sel_start, sel_to = self._GetSelection() if key == wx.WXK_BACK: # if 1st selected char is group char, select to previous digit if sel_start > 0 and sel_start < len(self._mask) and value[sel_start:sel_to] == self._groupChar: self.SetInsertionPoint(sel_start-1) self.SetSelection(sel_start-1, sel_to) # elif previous char is group char, select to previous digit elif sel_start > 1 and sel_start == sel_to and value[sel_start-1:sel_start] == self._groupChar: self.SetInsertionPoint(sel_start-2) self.SetSelection(sel_start-2, sel_to) elif key == wx.WXK_DELETE: if( sel_to < len(self._mask) - 2 + (1 *self._useParens) and sel_start == sel_to and value[sel_to] == self._groupChar ): self.SetInsertionPoint(sel_start) self.SetSelection(sel_start, sel_to+2) elif( sel_to < len(self._mask) - 2 + (1 *self._useParens) and value[sel_start:sel_to] == self._groupChar ): self.SetInsertionPoint(sel_start) self.SetSelection(sel_start, sel_to+1) ## dbg(indent=0) return BaseMaskedTextCtrl._OnErase(self, event, just_return_value) def OnTextChange( self, event ): """ Handles an event indicating that the text control's value has changed, and issue EVT_NUM event. NOTE: using wxTextCtrl.SetValue() to change the control's contents from within a EVT_CHAR handler can cause double text events. So we check for actual changes to the text before passing the events on. """ ## dbg('NumCtrl::OnTextChange', indent=1) if not BaseMaskedTextCtrl._OnTextChange(self, event): ## dbg(indent=0) return # else... legal value value = self.GetValue() if value != self._oldvalue: try: self.GetEventHandler().ProcessEvent( NumberUpdatedEvent( self.GetId(), self.GetValue(), self ) ) except ValueError: ## dbg(indent=0) return # let normal processing of the text continue event.Skip() self._oldvalue = value # record for next event ## dbg(indent=0) def _GetValue(self): """ Override of BaseMaskedTextCtrl to allow mixin to get the raw text value of the control with this function. """ return wx.TextCtrl.GetValue(self) def GetValue(self): """ Returns the current numeric value of the control. """ return self._fromGUI( BaseMaskedTextCtrl.GetValue(self) ) def SetValue(self, value): """ Sets the value of the control to the value specified. The resulting actual value of the control may be altered to conform with the bounds set on the control if limited, or colored if not limited but the value is out-of-bounds. A ValueError exception will be raised if an invalid value is specified. """ ## dbg('NumCtrl::SetValue(%s)' % value, indent=1) BaseMaskedTextCtrl.SetValue( self, self._toGUI(value) ) ## dbg(indent=0) def SetIntegerWidth(self, value): self.SetParameters(integerWidth=value) def GetIntegerWidth(self): return self._integerWidth def SetFractionWidth(self, value): self.SetParameters(fractionWidth=value) def GetFractionWidth(self): return self._fractionWidth def SetMin(self, min=None): """ Sets the minimum value of the control. If a value of None is provided, then the control will have no explicit minimum value. If the value specified is greater than the current maximum value, then the function returns False and the minimum will not change from its current setting. On success, the function returns True. If successful and the current value is lower than the new lower bound, if the control is limited, the value will be automatically adjusted to the new minimum value; if not limited, the value in the control will be colored as invalid. If min > the max value allowed by the width of the control, the function will return False, and the min will not be set. """ ## dbg('NumCtrl::SetMin(%s)' % repr(min), indent=1) if( self._max is None or min is None or (self._max is not None and self._max >= min) ): try: self.SetParameters(min=min) bRet = True except ValueError: bRet = False else: bRet = False ## dbg(indent=0) return bRet def GetMin(self): """ Gets the lower bound value of the control. It will return None if not specified. """ return self._min def SetMax(self, max=None): """ Sets the maximum value of the control. If a value of None is provided, then the control will have no explicit maximum value. If the value specified is less than the current minimum value, then the function returns False and the maximum will not change from its current setting. On success, the function returns True. If successful and the current value is greater than the new upper bound, if the control is limited the value will be automatically adjusted to this maximum value; if not limited, the value in the control will be colored as invalid. If max > the max value allowed by the width of the control, the function will return False, and the max will not be set. """ if( self._min is None or max is None or (self._min is not None and self._min <= max) ): try: self.SetParameters(max=max) bRet = True except ValueError: bRet = False else: bRet = False return bRet def GetMax(self): """ Gets the maximum value of the control. It will return the current maximum integer, or None if not specified. """ return self._max def SetBounds(self, min=None, max=None): """ This function is a convenience function for setting the min and max values at the same time. The function only applies the maximum bound if setting the minimum bound is successful, and returns True only if both operations succeed. NOTE: leaving out an argument will remove the corresponding bound. """ ret = self.SetMin(min) return ret and self.SetMax(max) def GetBounds(self): """ This function returns a two-tuple (min,max), indicating the current bounds of the control. Each value can be None if that bound is not set. """ return (self._min, self._max) def SetLimited(self, limited): """ If called with a value of True, this function will cause the control to limit the value to fall within the bounds currently specified. If the control's value currently exceeds the bounds, it will then be limited accordingly. If called with a value of False, this function will disable value limiting, but coloring of out-of-bounds values will still take place if bounds have been set for the control. """ self.SetParameters(limited = limited) def IsLimited(self): """ Returns True if the control is currently limiting the value to fall within the current bounds. """ return self._limited def GetLimited(self): """ (For regularization of property accessors) """ return self.IsLimited def IsInBounds(self, value=None): """ Returns True if no value is specified and the current value of the control falls within the current bounds. This function can also be called with a value to see if that value would fall within the current bounds of the given control. """ ## dbg('IsInBounds(%s)' % repr(value), indent=1) if value is None: value = self.GetValue() else: try: value = self._GetNumValue(self._toGUI(value)) except ValueError, e: ## dbg('error getting NumValue(self._toGUI(value)):', e, indent=0) return False if value.strip() == '': value = None elif self._fractionWidth: value = float(value) else: value = long(value) min = self.GetMin() max = self.GetMax() if min is None: min = value if max is None: max = value # if bounds set, and value is None, return False if value == None and (min is not None or max is not None): ## dbg('finished IsInBounds', indent=0) return 0 else: ## dbg('finished IsInBounds', indent=0) return min <= value <= max def SetAllowNone(self, allow_none): """ Change the behavior of the validation code, allowing control to have a value of None or not, as appropriate. If the value of the control is currently None, and allow_none is False, the value of the control will be set to the minimum value of the control, or 0 if no lower bound is set. """ self._allowNone = allow_none if not allow_none and self.GetValue() is None: min = self.GetMin() if min is not None: self.SetValue(min) else: self.SetValue(0) def IsNoneAllowed(self): return self._allowNone def GetAllowNone(self): """ (For regularization of property accessors) """ return self.IsNoneAllowed() def SetAllowNegative(self, value): self.SetParameters(allowNegative=value) def IsNegativeAllowed(self): return self._allowNegative def GetAllowNegative(self): """ (For regularization of property accessors) """ return self.IsNegativeAllowed() def SetGroupDigits(self, value): self.SetParameters(groupDigits=value) def IsGroupingAllowed(self): return self._groupDigits def GetGroupDigits(self): """ (For regularization of property accessors) """ return self.IsGroupingAllowed() def SetGroupChar(self, value): self.SetParameters(groupChar=value) def GetGroupChar(self): return self._groupChar def SetDecimalChar(self, value): self.SetParameters(decimalChar=value) def GetDecimalChar(self): return self._decimalChar def SetSelectOnEntry(self, value): self.SetParameters(selectOnEntry=value) def GetSelectOnEntry(self): return self._selectOnEntry def SetAutoSize(self, value): self.SetParameters(autoSize=value) def GetAutoSize(self): return self._autoSize # (Other parameter accessors are inherited from base class) def _toGUI( self, value, apply_limits = True ): """ Conversion function used to set the value of the control; does type and bounds checking and raises ValueError if argument is not a valid value. """ ## dbg('NumCtrl::_toGUI(%s)' % repr(value), indent=1) if value is None and self.IsNoneAllowed(): ## dbg(indent=0) return self._template elif type(value) in (types.StringType, types.UnicodeType): value = self._GetNumValue(value) ## dbg('cleansed num value: "%s"' % value) if value == "": if self.IsNoneAllowed(): ## dbg(indent=0) return self._template else: ## dbg('exception raised:', e, indent=0) raise ValueError ('NumCtrl requires numeric value, passed %s'% repr(value) ) # else... try: if self._fractionWidth or value.find('.') != -1: value = float(value) else: value = long(value) except Exception, e: ## dbg('exception raised:', e, indent=0) raise ValueError ('NumCtrl requires numeric value, passed %s'% repr(value) ) elif type(value) not in (types.IntType, types.LongType, types.FloatType): ## dbg(indent=0) raise ValueError ( 'NumCtrl requires numeric value, passed %s'% repr(value) ) if not self._allowNegative and value < 0: raise ValueError ( 'control configured to disallow negative values, passed %s'% repr(value) ) if self.IsLimited() and apply_limits: min = self.GetMin() max = self.GetMax() if not min is None and value < min: ## dbg(indent=0) raise ValueError ( 'value %d is below minimum value of control'% value ) if not max is None and value > max: ## dbg(indent=0) raise ValueError ( 'value %d exceeds value of control'% value ) adjustwidth = len(self._mask) - (1 * self._useParens * self._signOk) ## dbg('len(%s):' % self._mask, len(self._mask)) ## dbg('adjustwidth - groupSpace:', adjustwidth - self._groupSpace) ## dbg('adjustwidth:', adjustwidth) if self._fractionWidth == 0: s = str(long(value)).rjust(self._integerWidth) else: format = '%' + '%d.%df' % (self._integerWidth+self._fractionWidth+1, self._fractionWidth) s = format % float(value) ## dbg('s:"%s"' % s, 'len(s):', len(s)) if len(s) > (adjustwidth - self._groupSpace): ## dbg(indent=0) raise ValueError ('value %s exceeds the integer width of the control (%d)' % (s, self._integerWidth)) elif s[0] not in ('-', ' ') and self._allowNegative and len(s) == (adjustwidth - self._groupSpace): ## dbg(indent=0) raise ValueError ('value %s exceeds the integer width of the control (%d)' % (s, self._integerWidth)) s = s.rjust(adjustwidth).replace('.', self._decimalChar) if self._signOk and self._useParens: if s.find('-') != -1: s = s.replace('-', '(') + ')' else: s += ' ' ## dbg('returned: "%s"' % s, indent=0) return s def _fromGUI( self, value ): """ Conversion function used in getting the value of the control. """ ## dbg(suspend=0) ## dbg('NumCtrl::_fromGUI(%s)' % value, indent=1) # One or more of the underlying text control implementations # issue an intermediate EVT_TEXT when replacing the control's # value, where the intermediate value is an empty string. # So, to ensure consistency and to prevent spurious ValueErrors, # we make the following test, and react accordingly: # if value.strip() == '': if not self.IsNoneAllowed(): ## dbg('empty value; not allowed,returning 0', indent = 0) if self._fractionWidth: return 0.0 else: return 0 else: ## dbg('empty value; returning None', indent = 0) return None else: value = self._GetNumValue(value) ## dbg('Num value: "%s"' % value) if self._fractionWidth: try: ## dbg(indent=0) return float( value ) except ValueError: ## dbg("couldn't convert to float; returning None") return None else: raise else: try: ## dbg(indent=0) return int( value ) except ValueError: try: ## dbg(indent=0) return long( value ) except ValueError: ## dbg("couldn't convert to long; returning None") return None else: raise else: ## dbg('exception occurred; returning None') return None def _Paste( self, value=None, raise_on_invalid=False, just_return_value=False ): """ Preprocessor for base control paste; if value needs to be right-justified to fit in control, do so prior to paste: """ ## dbg('NumCtrl::_Paste (value = "%s")' % value, indent=1) if value is None: paste_text = self._getClipboardContents() else: paste_text = value sel_start, sel_to = self._GetSelection() orig_sel_start = sel_start orig_sel_to = sel_to ## dbg('selection:', (sel_start, sel_to)) old_value = self._GetValue() # field = self._FindField(sel_start) edit_start, edit_end = field._extent paste_text = paste_text.replace(self._groupChar, '').replace('(', '-').replace(')','') if field._insertRight and self._groupDigits: # want to paste to the left; see if it will fit: left_text = old_value[edit_start:sel_start].lstrip() ## dbg('len(left_text):', len(left_text)) ## dbg('len(paste_text):', len(paste_text)) ## dbg('sel_start - (len(left_text) + len(paste_text)) >= edit_start?', sel_start - (len(left_text) + len(paste_text)) >= edit_start) if sel_start - (len(left_text) + len(paste_text)) >= edit_start: # will fit! create effective paste text, and move cursor back to do so: paste_text = left_text + paste_text sel_start -= len(paste_text) sel_start += sel_to - orig_sel_start # decrease by amount selected else: ## dbg("won't fit left;", 'paste text remains: "%s"' % paste_text) ## dbg('adjusted start before accounting for grouping:', sel_start) ## dbg('adjusted paste_text before accounting for grouping: "%s"' % paste_text) pass if self._groupDigits and sel_start != orig_sel_start: left_len = len(old_value[:sel_to].lstrip()) # remove group chars from adjusted paste string, and left pad to wipe out # old characters, so that selection will remove the right chars, and # readjust will do the right thing: paste_text = paste_text.replace(self._groupChar,'') adjcount = left_len - len(paste_text) paste_text = ' ' * adjcount + paste_text sel_start = sel_to - len(paste_text) ## dbg('adjusted start after accounting for grouping:', sel_start) ## dbg('adjusted paste_text after accounting for grouping: "%s"' % paste_text) self.SetInsertionPoint(sel_to) self.SetSelection(sel_start, sel_to) new_text, replace_to = MaskedEditMixin._Paste(self, paste_text, raise_on_invalid=raise_on_invalid, just_return_value=True) self._SetInsertionPoint(orig_sel_to) self._SetSelection(orig_sel_start, orig_sel_to) if not just_return_value and new_text is not None: if new_text != self._GetValue(): self.modified = True if new_text == '': self.ClearValue() else: wx.CallAfter(self._SetValue, new_text) wx.CallAfter(self._SetInsertionPoint, replace_to) ## dbg(indent=0) else: ## dbg(indent=0) return new_text, replace_to def _Undo(self, value=None, prev=None): '''numctrl's undo is more complicated than the base control's, due to grouping characters; we don't want to consider them when calculating the undone portion.''' ## dbg('NumCtrl::_Undo', indent=1) if value is None: value = self._GetValue() if prev is None: prev = self._prevValue if not self._groupDigits: ignore, (new_sel_start, new_sel_to) = BaseMaskedTextCtrl._Undo(self, value, prev, just_return_results = True) self._SetValue(prev) self._SetInsertionPoint(new_sel_start) self._SetSelection(new_sel_start, new_sel_to) self._prevSelection = (new_sel_start, new_sel_to) ## dbg('resetting "prev selection" to', self._prevSelection) ## dbg(indent=0) return # else... sel_start, sel_to = self._prevSelection edit_start, edit_end = self._FindFieldExtent(0) adjvalue = self._GetNumValue(value).rjust(self._masklength) adjprev = self._GetNumValue(prev ).rjust(self._masklength) # move selection to account for "ungrouped" value: left_text = value[sel_start:].lstrip() numleftgroups = len(left_text) - len(left_text.replace(self._groupChar, '')) adjsel_start = sel_start + numleftgroups right_text = value[sel_to:].lstrip() numrightgroups = len(right_text) - len(right_text.replace(self._groupChar, '')) adjsel_to = sel_to + numrightgroups ## dbg('adjusting "previous" selection from', (sel_start, sel_to), 'to:', (adjsel_start, adjsel_to)) self._prevSelection = (adjsel_start, adjsel_to) # determine appropriate selection for ungrouped undo ignore, (new_sel_start, new_sel_to) = BaseMaskedTextCtrl._Undo(self, adjvalue, adjprev, just_return_results = True) # adjust new selection based on grouping: left_len = edit_end - new_sel_start numleftgroups = left_len / 3 new_sel_start -= numleftgroups if numleftgroups and left_len % 3 == 0: new_sel_start += 1 if new_sel_start < self._masklength and prev[new_sel_start] == self._groupChar: new_sel_start += 1 right_len = edit_end - new_sel_to numrightgroups = right_len / 3 new_sel_to -= numrightgroups if new_sel_to and prev[new_sel_to-1] == self._groupChar: new_sel_to -= 1 if new_sel_start > new_sel_to: new_sel_to = new_sel_start # for numbers, we don't care about leading whitespace; adjust selection if # it includes leading space. prev_stripped = prev.lstrip() prev_start = self._masklength - len(prev_stripped) if new_sel_start < prev_start: new_sel_start = prev_start ## dbg('adjusted selection accounting for grouping:', (new_sel_start, new_sel_to)) self._SetValue(prev) self._SetInsertionPoint(new_sel_start) self._SetSelection(new_sel_start, new_sel_to) self._prevSelection = (new_sel_start, new_sel_to) ## dbg('resetting "prev selection" to', self._prevSelection) ## dbg(indent=0) #=========================================================================== if __name__ == '__main__': import traceback class myDialog(wx.Dialog): def __init__(self, parent, id, title, pos = wx.DefaultPosition, size = wx.DefaultSize, style = wx.DEFAULT_DIALOG_STYLE ): wx.Dialog.__init__(self, parent, id, title, pos, size, style) self.int_ctrl = NumCtrl(self, wx.NewId(), size=(55,20)) self.OK = wx.Button( self, wx.ID_OK, "OK") self.Cancel = wx.Button( self, wx.ID_CANCEL, "Cancel") vs = wx.BoxSizer( wx.VERTICAL ) vs.Add( self.int_ctrl, 0, wx.ALIGN_CENTRE|wx.ALL, 5 ) hs = wx.BoxSizer( wx.HORIZONTAL ) hs.Add( self.OK, 0, wx.ALIGN_CENTRE|wx.ALL, 5 ) hs.Add( self.Cancel, 0, wx.ALIGN_CENTRE|wx.ALL, 5 ) vs.Add(hs, 0, wx.ALIGN_CENTRE|wx.ALL, 5 ) self.SetAutoLayout( True ) self.SetSizer( vs ) vs.Fit( self ) vs.SetSizeHints( self ) self.Bind(EVT_NUM, self.OnChange, self.int_ctrl) def OnChange(self, event): print 'value now', event.GetValue() class TestApp(wx.App): def OnInit(self): try: self.frame = wx.Frame(None, -1, "Test", (20,20), (120,100) ) self.panel = wx.Panel(self.frame, -1) button = wx.Button(self.panel, -1, "Push Me", (20, 20)) self.Bind(wx.EVT_BUTTON, self.OnClick, button) except: traceback.print_exc() return False return True def OnClick(self, event): dlg = myDialog(self.panel, -1, "test NumCtrl") dlg.int_ctrl.SetValue(501) dlg.int_ctrl.SetInsertionPoint(1) dlg.int_ctrl.SetSelection(1,2) rc = dlg.ShowModal() print 'final value', dlg.int_ctrl.GetValue() del dlg self.frame.Destroy() def Show(self): self.frame.Show(True) try: app = TestApp(0) app.Show() app.MainLoop() except: traceback.print_exc() i=0 ## To-Do's: ## =============================## ## 1. Add support for printf-style format specification. ## 2. Add option for repositioning on 'illegal' insertion point. ## ## Version 1.2 ## 1. Allowed select/replace digits. ## 2. Fixed undo to ignore grouping chars. ## ## Version 1.1 ## 1. Fixed .SetIntegerWidth() and .SetFractionWidth() functions. ## 2. Added autoSize parameter, to allow manual sizing of the control. ## 3. Changed inheritance to use wxBaseMaskedTextCtrl, to remove exposure of ## nonsensical parameter methods from the control, so it will work ## properly with Boa. ## 4. Fixed allowNone bug found by user sameerc1@grandecom.net ##