Dedicated listener type tailored for formula groups.

Right now, it's only used when loading an xlsx file. But eventually
this one should be used everywhere.

Change-Id: I216c3a9a33c4b8040e8284d59299e0637471fb50

1 files changed, 73 insertions, 0 deletions

diff --git a/sc/inc/grouparealistener.hxx b/sc/inc/grouparealistener.hxx
new file mode 100644
index 000000000000..6301023d8093
--- /dev/null
+++ b/sc/inc/grouparealistener.hxx
@@ -0,0 +1,73 @@
+/* -*- 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/.
+ */
+
+#ifndef INCLUDED_SC_GROUPAREALISTENER_HXX
+#define INCLUDED_SC_GROUPAREALISTENER_HXX
+
+#include <address.hxx>
+
+#include <svl/listener.hxx>
+
+class ScFormulaCell;
+
+namespace sc {
+
+class BulkDataHint;
+
+class FormulaGroupAreaListener : public SvtListener
+{
+    ScRange maRange;
+    ScFormulaCell** mppTopCell;
+    SCROW mnGroupLen;
+    bool mbStartFixed;
+    bool mbEndFixed;
+
+    FormulaGroupAreaListener(); // disabled
+
+public:
+    FormulaGroupAreaListener(
+        const ScRange& rRange, ScFormulaCell** ppTopCell, SCROW nGroupLen, bool bStartFixed, bool bEndFixed );
+
+    ScRange getListeningRange() const;
+
+    virtual void Notify( const SfxHint& rHint ) SAL_OVERRIDE;
+
+    /**
+     * Given the position of a changed cell, collect all formula cells that
+     * need to be notified of the change.
+     *
+     * @param rPos position of changed cell.
+     * @param rCells all formula cells that need to be notified are put into
+     *               this container.
+     */
+    void collectFormulaCells( const ScAddress& rPos, std::vector<ScFormulaCell*>& rCells ) const;
+
+    /**
+     * Given the row span of changed cells within a single column, collect all
+     * formula cells that need to be notified of the change.
+     *
+     * @param nTab sheet position of the changed cell span.
+     * @param nCol column position of the changed cell span.
+     * @param nRow1 top row position of the changed cell span.
+     * @param nRow2 bottom row position of the changed cell span.
+     * @param rCells all formula cells that need to be notified are put into
+     *               this container.
+     */
+    void collectFormulaCells( SCTAB nTab, SCCOL nCol, SCROW nRow1, SCROW nRow2, std::vector<ScFormulaCell*>& rCells ) const;
+
+private:
+    void notifyCellChange( const SfxHint& rHint, const ScAddress& rPos );
+    void notifyBulkChange( const BulkDataHint& rHint );
+};
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */