+/***************************************************************************
+ * Copyright (C) 2005-09 by the Quassel Project *
+ * devel@quassel-irc.org *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) version 3. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ ***************************************************************************/
+
+#include "bufferviewoverlayfilter.h"
+
+#include "bufferviewoverlay.h"
+#include "networkmodel.h"
+#include "types.h"
+
+BufferViewOverlayFilter::BufferViewOverlayFilter(QAbstractItemModel *model, BufferViewOverlay *overlay)
+ : QSortFilterProxyModel(model),
+ _overlay(0)
+{
+ setOverlay(overlay);
+ setSourceModel(model);
+
+ setDynamicSortFilter(true);
+}
+
+void BufferViewOverlayFilter::setOverlay(BufferViewOverlay *overlay) {
+ if(_overlay == overlay)
+ return;
+
+ if(_overlay) {
+ disconnect(_overlay, 0, this, 0);
+ }
+
+ _overlay = overlay;
+
+ if(!overlay) {
+ invalidate();
+ return;
+ }
+
+ connect(overlay, SIGNAL(destroyed()), this, SLOT(overlayDestroyed()));
+ connect(overlay, SIGNAL(hasChanged()), this, SLOT(invalidate()));
+ invalidate();
+}
+
+void BufferViewOverlayFilter::overlayDestroyed() {
+ setOverlay(0);
+}
+
+bool BufferViewOverlayFilter::filterAcceptsRow(int source_row, const QModelIndex &source_parent) const {
+ if(!_overlay)
+ return false;
+
+ QModelIndex source_bufferIndex = sourceModel()->index(source_row, 0, source_parent);
+
+ if(!source_bufferIndex.isValid()) {
+ qWarning() << "filterAcceptsRow has been called with an invalid Child";
+ return false;
+ }
+
+ NetworkId networkId = sourceModel()->data(source_bufferIndex, NetworkModel::NetworkIdRole).value<NetworkId>();
+ if(!_overlay->networkIds().contains(networkId) && ! _overlay->allNetworks())
+ return false;
+
+ int activityLevel = sourceModel()->data(source_bufferIndex, NetworkModel::BufferActivityRole).toInt();
+ if(_overlay->minimumActivity() > activityLevel)
+ return false;
+
+ bool isActive = sourceModel()->data(source_bufferIndex, NetworkModel::ItemActiveRole).toBool();
+ if(_overlay->hideInactiveBuffers() && !isActive && activityLevel <= BufferInfo::OtherActivity)
+ return false;
+
+ int bufferType = sourceModel()->data(source_bufferIndex, NetworkModel::BufferTypeRole).toInt();
+ if(!(_overlay->allowedBufferTypes() & bufferType))
+ return false;
+
+ BufferId bufferId = sourceModel()->data(source_bufferIndex, NetworkModel::BufferIdRole).value<BufferId>();
+ Q_ASSERT(bufferId.isValid());
+
+ if(_overlay->bufferIds().contains(bufferId))
+ return true;
+
+ if(_overlay->tempRemovedBufferIds().contains(bufferId))
+ return activityLevel > BufferInfo::OtherActivity;
+
+ if(_overlay->removedBufferIds().contains(bufferId))
+ return false;
+
+ // the buffer is not known to us
+ return _overlay->addBuffersAutomatically();
+}
+