Files
wxWidgets/utils/wxPython/demo/wxValidator.py
Robin Dunn 2f90df854e 1. wxHtmlHelpController and related classes
2. the C++ versions of wxSizer and firends, Python versions are
   'depreciated'
3. wxPyEvent and wxPyCommandEvent, event classes that can carry some
   python objects through the event system and safely come back out
   again.
4. wxGridSizer and wxFlexGridSizer
5. wxValidator
6. wxPyOnDemandOutputWindow
7. several tweaks, fixes and additions of missing methods, etc.
8. and probably several other things I am forgetting since CVS was
   down so long...


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3758 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1999-09-30 07:11:20 +00:00

120 lines
3.1 KiB
Python

from wxPython.wx import *
from wxPython.lib.grids import wxFlexGridSizer
import string
#----------------------------------------------------------------------
ALPHA_ONLY = 1
DIGIT_ONLY = 2
class MyValidator(wxPyValidator):
def __init__(self, flag=None, pyVar=None):
wxPyValidator.__init__(self)
self.flag = flag
EVT_CHAR(self, self.OnChar)
def Clone(self):
return MyValidator(self.flag)
def Validate(self, win):
print 'validate'
tc = wxPyTypeCast(win, "wxTextCtrl")
val = tc.GetValue()
if self.flag == ALPHA_ONLY:
for x in val:
if x not in string.letters:
return false
elif self.flag == DIGIT_ONLY:
for x in val:
if x not in string.digits:
return false
return true
def OnChar(self, event):
key = event.KeyCode()
if key < WXK_SPACE or key == WXK_DELETE or key > 255:
event.Skip()
return
if self.flag == ALPHA_ONLY and chr(key) in string.letters:
event.Skip()
return
if self.flag == DIGIT_ONLY and chr(key) in string.digits:
event.Skip()
return
if not wxValidator_IsSilent():
wxBell()
# Returning without calling even.Skip eats the event before it
# gets to the text control
return
#----------------------------------------------------------------------
class TestValidatorPanel(wxPanel):
def __init__(self, parent):
wxPanel.__init__(self, parent, -1)
self.SetAutoLayout(true)
VSPACE = 10
fgs = wxFlexGridSizer(0, 2)
fgs.Add(1,1);
fgs.Add(wxStaticText(self, -1, "These controls have validators that limit\n"
"the type of characters that can be entered."))
fgs.Add(1,VSPACE); fgs.Add(1,VSPACE)
label = wxStaticText(self, -1, "Alpha Only: ")
fgs.Add(label, 0, wxALIGN_RIGHT|wxCENTER)
fgs.Add(wxTextCtrl(self, -1, "", validator = MyValidator(ALPHA_ONLY))
fgs.Add(1,VSPACE); fgs.Add(1,VSPACE)
label = wxStaticText(self, -1, "Digits Only: ")
fgs.Add(label, 0, wxALIGN_RIGHT|wxCENTER)
fgs.Add(wxTextCtrl(self, -1, "", validator = MyValidator(DIGITS_ONLY)))
border = wxBoxSizer()
border.Add(fgs, 1, wxGROW|wxALL, 25)
self.SetSizer(border)
self.Layout()
#----------------------------------------------------------------------
def runTest(frame, nb, log):
win = TestValidatorPanel(nb)
return win
#----------------------------------------------------------------------
overview = """\
wxValidator is the base class for a family of validator classes that mediate between a class of control, and application data.
A validator has three major roles:
1. to transfer data from a C++ variable or own storage to and from a control;
2. to validate data in a control, and show an appropriate error message;
3. to filter events (such as keystrokes), thereby changing the behaviour of the associated control.
Validators can be plugged into controls dynamically.
"""