void ImageToolWidget::filterIndexChanged(int index) { if (index == 0 || index >= m_imageFilters.count()) { ui.FilterButton->setToolTip(QLatin1String("No image filter chosen")); ui.FilterButton->setEnabled(false); ui.gbBorderPolicy->setVisible( false ); ui.gbChannels->setVisible( false ); ui.gbMirror->setVisible( false ); } else { QtImageFilter *filter = m_imageFilters[index]; ui.FilterButton->setToolTip(filter->description()); ui.FilterButton->setEnabled(true); ui.gbBorderPolicy->setVisible( filter->supportsOption(QtImageFilter::FilterBorderPolicy) ); ui.gbChannels->setVisible( filter->supportsOption(QtImageFilter::FilterChannels) ); ui.gbMirror->setVisible( filter->supportsOption(MirrorFilter::MirrorHorizontal) || filter->supportsOption(MirrorFilter::MirrorVertical) ); } }