Method collectionChanged

src/frontend/examples/ExamplesWidget.cpp:102–139

* Shows all categories and sub-categories for the currently selected collection */

 * Shows all categories and sub-categories for the currently selected collection
 */
void ExamplesWidget::collectionChanged(int) {
	const QString& collection = ui.cbCollections->currentText();

	// populate the list view for the icon mode
	if (m_model)
		delete m_model;

	m_model = new QStandardItemModel(this);
	const auto& exampleNames = m_manager->exampleNames(collection);
	for (const auto& name : exampleNames) {
		auto* item = new QStandardItem();
		item->setIcon(QIcon(m_manager->pixmap(name)));
		item->setText(name);
		item->setToolTip(m_manager->description(name));
		m_model->appendRow(item);
	}

	ui.lvExamples->setModel(m_model);

	// populate the list widget for the list mode
	ui.lwExamples->clear();
	ui.lwExamples->addItems(exampleNames);

	// select the first example in the current collection
	ui.lvExamples->setCurrentIndex(ui.lvExamples->model()->index(0, 0));
	ui.lwExamples->setCurrentRow(0);

	// update the completer
	if (m_completer)
		delete m_completer;

	m_completer = new QCompleter(exampleNames, this);
	connect(m_completer, QOverload<const QString&>::of(&QCompleter::activated), this, &ExamplesWidget::activated);
	m_completer->setCompletionMode(QCompleter::PopupCompletion);
	m_completer->setCaseSensitivity(Qt::CaseInsensitive);
	m_completer->setFilterMode(Qt::MatchContains);
	ui.leSearch->setCompleter(m_completer);
}

void ExamplesWidget::exampleChanged() {
	const QString& name = ui.lwExamples->currentItem()->text();