// static
void LLSliderCtrl::onEditorCommit( LLUICtrl* caller, void *userdata )
{
    LLSliderCtrl* self = (LLSliderCtrl*) userdata;
    llassert( caller == self->mEditor );

    BOOL success = FALSE;
    F32 val = self->mValue;
    F32 saved_val = self->mValue;

    std::string text = self->mEditor->getText();
    if( LLLineEditor::postvalidateFloat( text ) )
    {
        LLLocale locale(LLLocale::USER_LOCALE);
        val = (F32) atof( text.c_str() );
        if( self->mSlider->getMinValue() <= val && val <= self->mSlider->getMaxValue() )
        {
            if( self->mValidateCallback )
            {
                self->setValue( val );  // set the value temporarily so that the callback can retrieve it.
                if( self->mValidateCallback( self, self->mCallbackUserData ) )
                {
                    success = TRUE;
                }
            }
            else
            {
                self->setValue( val );
                success = TRUE;
            }
        }
    }

    if( success )
    {
        self->onCommit();
    }
    else
    {
        if( self->getValueF32() != saved_val )
        {
            self->setValue( saved_val );
        }
        self->reportInvalidData();
    }
    self->updateText();
}
// static
void LLSliderCtrl::onSliderCommit( LLUICtrl* caller, void *userdata )
{
    LLSliderCtrl* self = (LLSliderCtrl*) userdata;
    llassert( caller == self->mSlider );

    BOOL success = FALSE;
    F32 saved_val = self->mValue;
    F32 new_val = self->mSlider->getValueF32();

    if( self->mValidateCallback )
    {
        self->mValue = new_val;  // set the value temporarily so that the callback can retrieve it.
        if( self->mValidateCallback( self, self->mCallbackUserData ) )
        {
            success = TRUE;
        }
    }
    else
    {
        self->mValue = new_val;
        success = TRUE;
    }

    if( success )
    {
        self->onCommit();
    }
    else
    {
        if( self->mValue != saved_val )
        {
            self->setValue( saved_val );
        }
        self->reportInvalidData();
    }
    self->updateText();
}