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bufferhotlistfilter.cpp
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20 
21 #include "bufferhotlistfilter.h"
22 
23 #include "networkmodel.h"
24 
25 
26 BufferHotListFilter::BufferHotListFilter(QAbstractItemModel *source, QObject *parent)
27  : QSortFilterProxyModel(parent)
28 {
29  setSourceModel(source);
30  setDynamicSortFilter(true);
31  sort(0, Qt::DescendingOrder); // enable sorting... this is "usually" triggered by a enabling setSortingEnabled(true) on a view;
32 }
33 
35 {
36  invalidate();
37  sort(0, Qt::DescendingOrder);
38  QModelIndex topIndex = index(0,0);
39  return data(topIndex, NetworkModel::BufferIdRole).value<BufferId>();
40 }
41 
42 bool BufferHotListFilter::filterAcceptsRow(int source_row, const QModelIndex &source_parent) const
43 {
44  Q_ASSERT(sourceModel());
45  QModelIndex source_index = sourceModel()->index(source_row, 0, source_parent);
46 
47  MsgId firstUnreadMsgId = sourceModel()->data(source_index, NetworkModel::BufferFirstUnreadMsgIdRole).value<MsgId>();
48  if (!firstUnreadMsgId.isValid())
49  return false;
50 
51  // filter out statusbuffers (it's accessable as networkitem)
52  BufferInfo::Type bufferType = (BufferInfo::Type)sourceModel()->data(source_index, NetworkModel::BufferTypeRole).toInt();
53  if (bufferType == BufferInfo::StatusBuffer) {
54  NetworkModel::ItemType itemType = (NetworkModel::ItemType)sourceModel()->data(source_index, NetworkModel::ItemTypeRole).toInt();
55  return itemType == NetworkModel::NetworkItemType;
56  }
57 
58  return true;
59 }
60 
61 
62 bool BufferHotListFilter::lessThan(const QModelIndex &source_left, const QModelIndex &source_right) const
63 {
64  int leftActivity = sourceModel()->data(source_left, NetworkModel::BufferActivityRole).toInt();
65  int rightActivity = sourceModel()->data(source_right, NetworkModel::BufferActivityRole).toInt();
66  if (leftActivity != rightActivity)
67  return leftActivity < rightActivity;
68 
69  MsgId leftUnreadMsgId = sourceModel()->data(source_left, NetworkModel::BufferFirstUnreadMsgIdRole).value<MsgId>();
70  MsgId rightUnreadMsgId = sourceModel()->data(source_right, NetworkModel::BufferFirstUnreadMsgIdRole).value<MsgId>();
71  return leftUnreadMsgId > rightUnreadMsgId; // newer messages are treated to be "less"
72 }
73 
74 
75 // QVariant BufferHotListFilter::data(const QModelIndex &index, int role) const {
76 // QVariant d = QSortFilterProxyModel::data(index, role);
77 
78 // if(role == Qt::DisplayRole) {
79 // int activity = QSortFilterProxyModel::data(index, NetworkModel::BufferActivityRole).toInt();
80 // MsgId unreadMsgId = QSortFilterProxyModel::data(index, NetworkModel::BufferFirstUnreadMsgIdRole).value<MsgId>();
81 // return QString("%1 %2 %3").arg(d.toString()).arg(activity).arg(unreadMsgId.toInt());
82 // }
83 // return d;
84 // }