// Filter keystrokes
void wxNumericTextValidator::OnChar(wxKeyEvent& event)
{
if (!m_validatorWindow)
return;
int keycode = event.GetKeyCode();
// we don't filter special keys and Delete
if (keycode < WXK_SPACE || keycode == WXK_DELETE || keycode > WXK_START)
{
// Don't disable following event handlers in the chain (i.e. use the key)
event.Skip();
return;
}
if (!wxIsNumeric(keycode))
{
if (!wxValidator::IsSilent())
wxBell();
// eat message
return;
}
// Don't disable following event handlers in the chain (i.e. use the key)
event.Skip();
}
// Called when the value in the window must be validated.
// This function can pop up an error message.
bool wxNumericTextValidator::Validate(wxWindow *parent)
{
if (!CheckValidator())
return false;
wxTextCtrl* control = dynamic_cast<wxTextCtrl*>(m_validatorWindow);
if (!control)
return false;
// If window is disabled, simply return
if ( !control->IsEnabled() )
return true;
if (!wxIsNumeric(control->GetValue()))
{
m_validatorWindow->SetFocus();
wxString buf;
buf.Printf(_("'%s' should be numeric."), control->GetValue().c_str());
wxMessageBox(buf, _("Validation conflict"),
wxOK | wxICON_EXCLAMATION, parent);
return false;
}
return true;
}
wxString wxTextValidator::IsValid(const wxString& val) const
{
// wxFILTER_EMPTY is checked for in wxTextValidator::Validate
if ( HasFlag(wxFILTER_ASCII) && !val.IsAscii() )
return _("'%s' should only contain ASCII characters.");
if ( HasFlag(wxFILTER_ALPHA) && !CheckString(wxIsalpha, val) )
return _("'%s' should only contain alphabetic characters.");
if ( HasFlag(wxFILTER_ALPHANUMERIC) && !CheckString(wxIsalnum, val) )
return _("'%s' should only contain alphabetic or numeric characters.");
if ( HasFlag(wxFILTER_DIGITS) && !CheckString(wxIsdigit, val) )
return _("'%s' should only contain digits.");
if ( HasFlag(wxFILTER_NUMERIC) && !wxIsNumeric(val) )
return _("'%s' should be numeric.");
if ( HasFlag(wxFILTER_INCLUDE_LIST) && m_includes.Index(val) == wxNOT_FOUND )
return _("'%s' is invalid");
if ( HasFlag(wxFILTER_INCLUDE_CHAR_LIST) && !ContainsOnlyIncludedCharacters(val) )
return _("'%s' is invalid");
if ( HasFlag(wxFILTER_EXCLUDE_LIST) && m_excludes.Index(val) != wxNOT_FOUND )
return _("'%s' is invalid");
if ( HasFlag(wxFILTER_EXCLUDE_CHAR_LIST) && ContainsExcludedCharacters(val) )
return _("'%s' is invalid");
return wxEmptyString;
}
static bool wxIsNumeric(const wxString& val)
{
for (unsigned int i = 0; i < val.Length(); ++i)
{
// Allow for "," (French) as well as "." -- in future we should
// use wxSystemSettings or other to do better localisation
if (!wxIsNumeric(val[i]))
return false;
}
return true;
}
// Called when the value in the window must be validated.
// This function can pop up an error message.
bool wxTextValidator::Validate(wxWindow *parent)
{
if( !CheckValidator() )
return false;
wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow;
// If window is disabled, simply return
if ( !control->IsEnabled() )
return true;
wxString val(control->GetValue());
bool ok = true;
// NB: this format string should contian exactly one '%s'
wxString errormsg;
bool includes = (m_validatorStyle & wxFILTER_INCLUDE_LIST) != 0;
if ( includes || (m_validatorStyle & wxFILTER_EXCLUDE_LIST) )
{
// if includes, it's only ok to have the members of the list,
// otherwise it's only ok to have non-members
ok = includes == (m_includes.Index(val) != wxNOT_FOUND);
if ( !ok )
{
errormsg = _("'%s' is invalid");
}
}
else if ( (m_validatorStyle & wxFILTER_ASCII) && !val.IsAscii() )
{
ok = false;
errormsg = _("'%s' should only contain ASCII characters.");
}
else if ( (m_validatorStyle & wxFILTER_ALPHA) && !wxIsAlpha(val) )
{
ok = false;
errormsg = _("'%s' should only contain alphabetic characters.");
}
else if ( (m_validatorStyle & wxFILTER_ALPHANUMERIC) && !wxIsAlphaNumeric(val))
{
ok = false;
errormsg = _("'%s' should only contain alphabetic or numeric characters.");
}
else if ( (m_validatorStyle & wxFILTER_NUMERIC) && !wxIsNumeric(val))
{
ok = false;
errormsg = _("'%s' should be numeric.");
}
else if ( (m_validatorStyle & wxFILTER_INCLUDE_CHAR_LIST) && !IsInCharIncludes(val))
{
//it's only ok to have the members of the list
errormsg = _("'%s' is invalid");
ok = false;
}
else if ( (m_validatorStyle & wxFILTER_EXCLUDE_CHAR_LIST) && !IsNotInCharExcludes(val))
{
// it's only ok to have non-members of the list
errormsg = _("'%s' is invalid");
ok = false;
}
if ( !ok )
{
wxASSERT_MSG( !errormsg.empty(), _T("you forgot to set errormsg") );
m_validatorWindow->SetFocus();
wxString buf;
buf.Printf(errormsg, val.c_str());
wxMessageBox(buf, _("Validation conflict"),
wxOK | wxICON_EXCLAMATION, parent);
}
return ok;
}
