Method selectionChanged

src/frontend/ProjectExplorer.cpp:804–855

}

void ProjectExplorer::selectionChanged(const QItemSelection& selected, const QItemSelection& deselected) {
	if (m_project->isLoading())
		return;

	// QDEBUG(Q_FUNC_INFO << ", selected/deselected = " << selected << "/" << deselected)

	QModelIndex index;
	AbstractAspect* aspect = nullptr;

	// there are four model indices in each row
	//-> divide by 4 to obtain the number of selected rows (=aspects)
	const auto& sitems = selected.indexes();
	for (int i = 0; i < sitems.size() / 4; ++i) {
		index = sitems.at(i * 4);
		aspect = static_cast<AbstractAspect*>(index.internalPointer());
		QDEBUG("sitems ASPECT =" << aspect)
		aspect->setSelected(true);
	}

	const auto& ditems = deselected.indexes();
	for (int i = 0; i < ditems.size() / 4; ++i) {
		index = ditems.at(i * 4);
		aspect = static_cast<AbstractAspect*>(index.internalPointer());
		QDEBUG("ditems ASPECT =" << aspect)
		aspect->setSelected(false);
	}

	const auto& items = m_treeView->selectionModel()->selectedRows();
	QList<AbstractAspect*> selectedAspects;
	for (const auto& index : items) {
		aspect = static_cast<AbstractAspect*>(index.internalPointer());
		QDEBUG("items ASPECT =" << aspect)
		selectedAspects << aspect;
	}

	// notify GuiObserver about the new selection
	Q_EMIT selectedAspectsChanged(selectedAspects);

	// notify MainWin about the new current aspect (last selected aspect).
	if (!selectedAspects.isEmpty())
		Q_EMIT currentAspectChanged(selectedAspects.last());

	// emitting the signal above is done to show the properties widgets for the selected aspect(s).
	// with this the project explorer looses the focus and don't react on the key events like DEL key press, etc.
	// If we explicitly select an item in the project explorer (not via a selection in the view), we want to keep the focus here.
	// TODO: after the focus is set again we react on DEL in the event filter, but navigation with the arrow keys in the table
	// is still not possible. Looks like we need to set the selection again...
	if (!m_changeSelectionFromView)
		setFocus();
	else
		m_changeSelectionFromView = false;
}

void ProjectExplorer::expandSelected() {
	const auto& items = m_treeView->selectionModel()->selectedIndexes();