void NumValidatorBase::OnPaste(wxClipboardTextEvent& event)
{
event.Skip(false);
wxTextEntry * const control = GetTextEntry();
if ( !control )
{
return;
}
wxClipboardLocker cb;
// if (!wxClipboard::Get()->IsSupported(wxDataFormat(wxDF_TEXT)))
if (!wxClipboard::Get()->IsSupported(wxDF_TEXT))
{
return;
}
wxTextDataObject data;
if (!wxClipboard::Get()->GetData( data ))
{
return;
}
wxString toPaste = data.GetText();
wxString val;
int pos;
GetCurrentValueAndInsertionPoint(val, pos);
for (size_t i = 0, cnt = toPaste.Length(); i < cnt; i++)
{
const wxChar ch = toPaste[i];
// Check if this character is allowed in the current state.
if ( IsCharOk(val, pos, ch) )
{
val = GetValueAfterInsertingChar(val, pos++, ch);
}
else if ( !wxValidator::IsSilent() )
{
wxBell();
}
}
// When we change the control value below, its "modified" status is reset
// so we need to explicitly keep it marked as modified if it was so in the
// first place.
//
// Notice that only wxTextCtrl (and not wxTextEntry) has
// IsModified()/MarkDirty() methods hence the need for dynamic cast.
wxTextCtrl * const text = wxDynamicCast(m_validatorWindow, wxTextCtrl);
const bool wasModified = text ? text->IsModified() : false;
// Use SetValue because effect still needs EVT_TEXT (bug 1357)
control->SetValue(NormalizeString(val));
if ( wasModified )
{
text->MarkDirty();
}
}
bool
wxIntegerValidatorBase::IsCharOk(const wxString& val, int pos, wxChar ch) const
{
// We may accept minus sign if we can represent negative numbers at all.
if ( ch == '-' )
{
// Notice that entering '-' can make our value invalid, for example if
// we're limited to -5..15 range and the current value is 12, then the
// new value would be (invalid) -12. We consider it better to let the
// user do this because perhaps he is going to press Delete key next to
// make it -2 and forcing him to delete 1 first would be unnatural.
//
// TODO: It would be nice to indicate that the current control contents
// is invalid (if it's indeed going to be the case) once
// wxValidator supports doing this non-intrusively.
return m_min < 0 && IsMinusOk(val, pos);
}
// We only accept digits here (remember that '-' is taken care of by the
// base class already).
if ( ch < '0' || ch > '9' )
return false;
// And the value after insertion needs to be in the defined range.
LongestValueType value;
if ( !FromString(GetValueAfterInsertingChar(val, pos, ch), &value) )
return false;
wxString smin = ToString(m_min);
wxString smax = ToString(m_max);
if ( pos < (int) smin.Length() )
return true;
if ( pos < (int) smax.Length() - 1 )
return true;
return IsInRange(value);
}