1 files changed, 83 insertions, 0 deletions
diff --git a/vcl/inc/regionband.hxx b/vcl/inc/regionband.hxx
new file mode 100644
index 0000000000..c25b5dd648
--- /dev/null
+++ b/vcl/inc/regionband.hxx
@@ -0,0 +1,83 @@
+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef INCLUDED_VCL_INC_REGIONBAND_HXX
+#define INCLUDED_VCL_INC_REGIONBAND_HXX
+
+#include <vcl/region.hxx>
+
+#include "regband.hxx"
+
+#ifdef DBG_UTIL
+const char* ImplDbgTestRegionBand(const void*);
+#endif
+
+class RegionBand
+{
+private:
+    friend const char* ImplDbgTestRegionBand(const void*);
+
+    ImplRegionBand* mpFirstBand; // root of the list with y-bands
+    ImplRegionBand* mpLastCheckedBand;
+
+    void implReset();
+    [[nodiscard]] bool CheckConsistency() const;
+
+public:
+    RegionBand();
+    RegionBand(const RegionBand&);
+    RegionBand& operator=(const RegionBand&);
+    RegionBand(const tools::Rectangle&);
+    ~RegionBand();
+
+    bool operator==(const RegionBand& rRegionBand) const;
+
+    [[nodiscard]] bool load(SvStream& rIStrm);
+    void save(SvStream& rIStrm) const;
+
+    bool isSingleRectangle() const;
+    ImplRegionBand* ImplGetFirstRegionBand() const { return mpFirstBand; }
+    void ImplAddMissingBands(const tools::Long nTop, const tools::Long nBottom);
+    void InsertBand(ImplRegionBand* pPreviousBand, ImplRegionBand* pBandToInsert);
+    void processPoints();
+    void CreateBandRange(tools::Long nYTop, tools::Long nYBottom);
+    void InsertLine(const Point& rStartPt, const Point& rEndPt, tools::Long nLineId);
+    void InsertPoint(const Point& rPoint, tools::Long nLineID, bool bEndPoint, LineType eLineType);
+    bool OptimizeBandList();
+    void Move(tools::Long nHorzMove, tools::Long nVertMove);
+    void Scale(double fScaleX, double fScaleY);
+    void InsertBands(tools::Long nTop, tools::Long nBottom);
+    static bool InsertSingleBand(ImplRegionBand* pBand, tools::Long nYBandPosition);
+    void Union(tools::Long nLeft, tools::Long nTop, tools::Long nRight, tools::Long nBottom);
+    void Intersect(tools::Long nLeft, tools::Long nTop, tools::Long nRight, tools::Long nBottom);
+    void Union(const RegionBand& rSource);
+    void Exclude(tools::Long nLeft, tools::Long nTop, tools::Long nRight, tools::Long nBottom);
+    void XOr(tools::Long nLeft, tools::Long nTop, tools::Long nRight, tools::Long nBottom);
+    void Intersect(const RegionBand& rSource);
+    bool Exclude(const RegionBand& rSource);
+    void XOr(const RegionBand& rSource);
+    tools::Rectangle GetBoundRect() const;
+    bool Contains(const Point& rPoint) const;
+    sal_uInt32 getRectangleCount()
+        const; // only users are Region::Intersect, Region::IsRectangle and PSWriter::ImplBmp
+    void GetRegionRectangles(RectangleVector& rTarget) const;
+};
+
+#endif // INCLUDED_VCL_INC_REGIONBAND_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */