1 files changed, 85 insertions, 0 deletions
diff --git a/sc/inc/listenercontext.hxx b/sc/inc/listenercontext.hxx
new file mode 100644
index 000000000..e97eb9d89
--- /dev/null
+++ b/sc/inc/listenercontext.hxx
@@ -0,0 +1,85 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include "address.hxx"
+#include "columnspanset.hxx"
+#include "mtvelements.hxx"
+
+#include <memory>
+
+class ScDocument;
+class ScTokenArray;
+
+namespace sc
+{
+class ColumnSet;
+
+class StartListeningContext
+{
+    ScDocument& mrDoc;
+    std::shared_ptr<ColumnBlockPositionSet> mpSet;
+    std::shared_ptr<const ColumnSet> mpColSet;
+
+public:
+    StartListeningContext(const StartListeningContext&) = delete;
+    const StartListeningContext& operator=(const StartListeningContext&) = delete;
+    StartListeningContext(ScDocument& rDoc);
+    StartListeningContext(ScDocument& rDoc, const std::shared_ptr<ColumnBlockPositionSet>& pSet);
+    void setColumnSet(const std::shared_ptr<const ColumnSet>& pColSet);
+    const std::shared_ptr<const ColumnSet>& getColumnSet() const;
+    ScDocument& getDoc() { return mrDoc; }
+
+    ColumnBlockPosition* getBlockPosition(SCTAB nTab, SCCOL nCol);
+};
+
+class EndListeningContext
+{
+    ScDocument& mrDoc;
+    ColumnSpanSet maSet;
+    std::shared_ptr<ColumnBlockPositionSet> mpPosSet;
+    ScTokenArray* mpOldCode;
+    ScAddress maPosDelta; // Add this to get the old position prior to the move.
+
+public:
+    EndListeningContext(const EndListeningContext&) = delete;
+    const EndListeningContext& operator=(const EndListeningContext&) = delete;
+    EndListeningContext(ScDocument& rDoc, ScTokenArray* pOldCode = nullptr);
+    EndListeningContext(ScDocument& rDoc, const std::shared_ptr<ColumnBlockPositionSet>& pSet,
+                        ScTokenArray* pOldCode = nullptr);
+
+    void setPositionDelta(const ScAddress& rDelta);
+
+    ScDocument& getDoc() { return mrDoc; }
+    ScTokenArray* getOldCode() { return mpOldCode; }
+    ScAddress getOldPosition(const ScAddress& rPos) const;
+
+    ColumnBlockPosition* getBlockPosition(SCTAB nTab, SCCOL nCol);
+
+    void addEmptyBroadcasterPosition(SCTAB nTab, SCCOL nCol, SCROW nRow);
+    void purgeEmptyBroadcasters();
+};
+
+class PurgeListenerAction final : public ColumnSpanSet::Action
+{
+    ScDocument& mrDoc;
+    std::unique_ptr<ColumnBlockPosition> mpBlockPos;
+
+public:
+    PurgeListenerAction(const PurgeListenerAction&) = delete;
+    const PurgeListenerAction& operator=(const PurgeListenerAction&) = delete;
+    PurgeListenerAction(ScDocument& rDoc);
+
+    virtual void startColumn(SCTAB nTab, SCCOL nCol) override;
+    virtual void execute(const ScAddress& rPos, SCROW nLength, bool bVal) override;
+};
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */