+
+ // ensure that newly inserted network nodes are expanded per default
+ if(parent.data(NetworkModel::ItemTypeRole) != NetworkModel::NetworkItemType)
+ return;
+
+ setExpandedState(parent);
+}
+
+void BufferView::on_layoutChanged() {
+ int numNets = model()->rowCount(QModelIndex());
+ for(int row = 0; row < numNets; row++) {
+ QModelIndex networkIdx = model()->index(row, 0, QModelIndex());
+ setExpandedState(networkIdx);
+ }
+}
+
+void BufferView::on_configChanged() {
+ Q_ASSERT(model());
+
+ // expand all active networks... collapse inactive ones... unless manually changed
+ QModelIndex networkIdx;
+ NetworkId networkId;
+ for(int row = 0; row < model()->rowCount(); row++) {
+ networkIdx = model()->index(row, 0);
+ if(model()->rowCount(networkIdx) == 0)
+ continue;
+
+ networkId = model()->data(networkIdx, NetworkModel::NetworkIdRole).value<NetworkId>();
+ if(!networkId.isValid())
+ continue;
+
+ setExpandedState(networkIdx);
+ }
+
+ if(config()) {
+ // update selection to current one
+ Client::bufferModel()->synchronizeView(this);
+ }
+}
+
+void BufferView::storeExpandedState(const QModelIndex &networkIdx) {
+ NetworkId networkId = model()->data(networkIdx, NetworkModel::NetworkIdRole).value<NetworkId>();
+
+ int oldState = 0;
+ if(isExpanded(networkIdx))
+ oldState |= WasExpanded;
+ if(model()->data(networkIdx, NetworkModel::ItemActiveRole).toBool())
+ oldState |= WasActive;
+
+ _expandedState[networkId] = oldState;
+}
+
+void BufferView::setExpandedState(const QModelIndex &networkIdx) {
+ if(model()->data(networkIdx, NetworkModel::ItemTypeRole) != NetworkModel::NetworkItemType)
+ return;
+
+ if(model()->rowCount(networkIdx) == 0)
+ return;
+
+ NetworkId networkId = model()->data(networkIdx, NetworkModel::NetworkIdRole).value<NetworkId>();
+
+ bool networkActive = model()->data(networkIdx, NetworkModel::ItemActiveRole).toBool();
+ bool expandNetwork = networkActive;
+ if(_expandedState.contains(networkId)) {
+ int oldState = _expandedState[networkId];
+ if((bool)(oldState & WasActive) == networkActive)
+ expandNetwork = (bool)(oldState & WasExpanded);
+ }
+
+ if(expandNetwork != isExpanded(networkIdx)) {
+ update(networkIdx);
+ setExpanded(networkIdx, expandNetwork);
+ }
+ storeExpandedState(networkIdx); // this call is needed to keep track of the isActive state
+}
+
+void BufferView::dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight) {
+ QTreeView::dataChanged(topLeft, bottomRight);
+
+ // determine how many items have been changed and if any of them is a networkitem
+ // which just swichted from active to inactive or vice versa
+ if(topLeft.data(NetworkModel::ItemTypeRole) != NetworkModel::NetworkItemType)
+ return;
+
+ for(int i = topLeft.row(); i <= bottomRight.row(); i++) {
+ QModelIndex networkIdx = topLeft.sibling(i, 0);
+ setExpandedState(networkIdx);
+ }
+}
+
+void BufferView::toggleHeader(bool checked) {
+ QAction *action = qobject_cast<QAction *>(sender());
+ header()->setSectionHidden((action->property("column")).toInt(), !checked);
+}
+
+void BufferView::contextMenuEvent(QContextMenuEvent *event) {
+ QModelIndex index = indexAt(event->pos());
+ if(!index.isValid())
+ index = rootIndex();
+
+ QMenu contextMenu(this);
+
+ if(index.isValid()) {
+ addActionsToMenu(&contextMenu, index);
+ }
+
+ addFilterActions(&contextMenu, index);
+
+ if(!contextMenu.actions().isEmpty())
+ contextMenu.exec(QCursor::pos());
+}
+
+void BufferView::addActionsToMenu(QMenu *contextMenu, const QModelIndex &index) {
+ QModelIndexList indexList = selectedIndexes();
+ // make sure the item we clicked on is first
+ indexList.removeAll(index);
+ indexList.prepend(index);
+
+ GraphicalUi::contextMenuActionProvider()->addActions(contextMenu, indexList, this, "menuActionTriggered", (bool)config());
+}
+
+void BufferView::addFilterActions(QMenu *contextMenu, const QModelIndex &index) {
+ BufferViewFilter *filter = qobject_cast<BufferViewFilter *>(model());
+ if(filter) {
+ QList<QAction *> filterActions = filter->actions(index);
+ if(!filterActions.isEmpty()) {
+ contextMenu->addSeparator();
+ foreach(QAction *action, filterActions) {
+ contextMenu->addAction(action);
+ }
+ }
+ }
+}
+
+void BufferView::menuActionTriggered(QAction *result) {
+ ContextMenuActionProvider::ActionType type = (ContextMenuActionProvider::ActionType)result->data().toInt();
+ switch(type) {
+ case ContextMenuActionProvider::HideBufferTemporarily:
+ removeSelectedBuffers();
+ break;
+ case ContextMenuActionProvider::HideBufferPermanently:
+ removeSelectedBuffers(true);
+ break;
+ default:
+ return;
+ }
+}
+
+void BufferView::wheelEvent(QWheelEvent* event) {
+ if(UiSettings().value("MouseWheelChangesBuffers", QVariant(true)).toBool() == (bool)(event->modifiers() & Qt::AltModifier))
+ return QTreeView::wheelEvent(event);
+
+ int rowDelta = ( event->delta() > 0 ) ? -1 : 1;
+ QModelIndex currentIndex = selectionModel()->currentIndex();
+ QModelIndex resultingIndex;
+ if( model()->hasIndex( currentIndex.row() + rowDelta, currentIndex.column(), currentIndex.parent() ) )
+ {
+ resultingIndex = currentIndex.sibling( currentIndex.row() + rowDelta, currentIndex.column() );
+ }
+ else //if we scroll into a the parent node...
+ {
+ QModelIndex parent = currentIndex.parent();
+ QModelIndex aunt = parent.sibling( parent.row() + rowDelta, parent.column() );
+ if( rowDelta == -1 )
+ resultingIndex = aunt.child( model()->rowCount( aunt ) - 1, 0 );
+ else
+ resultingIndex = aunt.child( 0, 0 );
+ if( !resultingIndex.isValid() )
+ return;
+ }
+ selectionModel()->setCurrentIndex( resultingIndex, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows );
+ selectionModel()->select( resultingIndex, QItemSelectionModel::ClearAndSelect );
+
+}
+
+QSize BufferView::sizeHint() const {
+ return QTreeView::sizeHint();
+
+ if(!model())
+ return QTreeView::sizeHint();
+
+ if(model()->rowCount() == 0)
+ return QSize(120, 50);
+
+ int columnSize = 0;
+ for(int i = 0; i < model()->columnCount(); i++) {
+ if(!isColumnHidden(i))
+ columnSize += sizeHintForColumn(i);