first working BufferViewOverlay

[quassel.git] / src / uisupport / bufferviewoverlayfilter.cpp

diff --git a/src/uisupport/bufferviewoverlayfilter.cpp b/src/uisupport/bufferviewoverlayfilter.cpp
new file mode 100644 (file)
index 0000000..97a3246
--- /dev/null
+++ b/src/uisupport/bufferviewoverlayfilter.cpp
@@ -0,0 +1,103 @@
+/***************************************************************************
+ *   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();
+}
+