1 files changed, 139 insertions, 0 deletions
diff --git a/include/vcl/BitmapPalette.hxx b/include/vcl/BitmapPalette.hxx
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+++ b/include/vcl/BitmapPalette.hxx
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+/* -*- 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_BITMAPPALETTE_HXX
+#define INCLUDED_VCL_BITMAPPALETTE_HXX
+
+#include <vcl/dllapi.h>
+#include <vcl/BitmapColor.hxx>
+#include <vcl/checksum.hxx>
+#include <vector>
+
+class VCL_DLLPUBLIC BitmapPalette
+{
+    friend class SalBitmap;
+    friend class BitmapAccess;
+
+private:
+
+    std::vector<BitmapColor> maBitmapColor;
+
+public:
+
+    SAL_DLLPRIVATE const BitmapColor* ImplGetColorBuffer() const
+    {
+        return maBitmapColor.data();
+    }
+
+    SAL_DLLPRIVATE BitmapColor* ImplGetColorBuffer()
+    {
+        return maBitmapColor.data();
+    }
+
+    BitmapChecksum GetChecksum() const
+    {
+        return vcl_get_checksum(0, maBitmapColor.data(), maBitmapColor.size() * sizeof(BitmapColor));
+    }
+
+public:
+
+    BitmapPalette()
+    {
+    }
+
+    BitmapPalette(sal_uInt16 nCount)
+        : maBitmapColor(nCount)
+    {
+    }
+
+    bool operator==( const BitmapPalette& rBitmapPalette ) const
+    {
+        return maBitmapColor == rBitmapPalette.maBitmapColor;
+    }
+
+    bool operator!=(const BitmapPalette& rBitmapPalette) const
+    {
+        return !( *this == rBitmapPalette );
+    }
+
+    bool operator!() const
+    {
+        return maBitmapColor.empty();
+    }
+
+    sal_uInt16 GetEntryCount() const
+    {
+        return maBitmapColor.size();
+    }
+
+    void SetEntryCount(sal_uInt16 nCount)
+    {
+        maBitmapColor.resize(nCount);
+    }
+
+    const BitmapColor& operator[](sal_uInt16 nIndex) const
+    {
+        assert(nIndex < maBitmapColor.size() && "Palette index is out of range");
+        return maBitmapColor[nIndex];
+    }
+
+    BitmapColor& operator[](sal_uInt16 nIndex)
+    {
+        assert(nIndex < maBitmapColor.size() && "Palette index is out of range");
+        return maBitmapColor[nIndex];
+    }
+
+    sal_uInt16 GetBestIndex(const BitmapColor& rCol) const
+    {
+        sal_uInt16 nRetIndex = 0;
+
+        if (!maBitmapColor.empty())
+        {
+            for (size_t j = 0; j < maBitmapColor.size(); ++j)
+            {
+                if (rCol == maBitmapColor[j])
+                {
+                    return j;
+                }
+            }
+
+            sal_uInt16 nLastErr = SAL_MAX_UINT16;
+            for (size_t i = 0; i < maBitmapColor.size(); ++i)
+            {
+                const sal_uInt16 nActErr = rCol.GetColorError(maBitmapColor[i]);
+                if ( nActErr < nLastErr )
+                {
+                    nLastErr = nActErr;
+                    nRetIndex = i;
+                }
+            }
+        }
+
+        return nRetIndex;
+    }
+
+    /// Returns true if the palette is 8-bit grey palette.
+    bool IsGreyPalette8Bit() const;
+    /// Returns true if the paleete is a grey palette (may not be 8-bit).
+    bool IsGreyPaletteAny() const;
+};
+
+#endif // INCLUDED_VCL_BITMAPPALETTE_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */