- MessageFilter(MessageModel *, const QList<BufferId> &buffers = QList<BufferId>(), QObject *parent = 0);
+ MessageFilter(MessageModel *, const QList<BufferId> &buffers = QList<BufferId>(), QObject *parent = nullptr);
+
+ virtual QString idString() const;
+
+ bool isSingleBufferFilter() const { return _validBuffers.count() == 1; }
+ BufferId singleBufferId() const { return *(_validBuffers.constBegin()); }
+ bool containsBuffer(const BufferId &id) const { return _validBuffers.contains(id); }
+ QSet<BufferId> containedBuffers() const { return _validBuffers; }