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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 .
+ */
+
+#pragma once
+
+#include <vcl/dllapi.h>
+#include <vcl/BitmapColor.hxx>
+#include <vcl/checksum.hxx>
+#include <o3tl/cow_wrapper.hxx>
+
+#include <array>
+
+class ImplBitmapPalette;
+
+class VCL_DLLPUBLIC BitmapPalette
+{
+ friend class SalBitmap;
+ friend class BitmapAccess;
+
+public:
+
+ SAL_DLLPRIVATE const BitmapColor* ImplGetColorBuffer() const;
+
+ SAL_DLLPRIVATE BitmapColor* ImplGetColorBuffer();
+
+ BitmapChecksum GetChecksum() const;
+
+ BitmapPalette();
+ BitmapPalette( const BitmapPalette& );
+ BitmapPalette( BitmapPalette&& ) noexcept;
+ BitmapPalette(std::initializer_list<BitmapColor> aBitmapColor);
+ template <size_t N> BitmapPalette(const std::array<BitmapColor, N>& colors);
+ explicit BitmapPalette(sal_uInt16 nCount);
+ ~BitmapPalette();
+
+ BitmapPalette& operator=( const BitmapPalette& );
+ BitmapPalette& operator=( BitmapPalette&& ) noexcept;
+
+ bool operator==( const BitmapPalette& rBitmapPalette ) const;
+ bool operator!=(const BitmapPalette& rBitmapPalette) const
+ {
+ return !( *this == rBitmapPalette );
+ }
+ bool operator!() const;
+
+ sal_uInt16 GetEntryCount() const;
+ void SetEntryCount(sal_uInt16 nCount);
+
+ const BitmapColor& operator[](sal_uInt16 nIndex) const;
+ BitmapColor& operator[](sal_uInt16 nIndex);
+
+ /// Returns the BitmapColor (i.e. palette index) that is either an exact match
+ /// of the required color, or failing that, the entry that is the closest i.e. least error
+ /// as measured by Color::GetColorError.
+ sal_uInt16 GetBestIndex(const BitmapColor& rCol) const;
+ /// Returns the BitmapColor (i.e. palette index) that is an exact match
+ /// of the required color. Returns SAL_MAX_UINT16 if nothing found.
+ sal_uInt16 GetMatchingIndex(const BitmapColor& rCol) const;
+
+ /// Returns true if the palette is 8-bit grey palette.
+ bool IsGreyPalette8Bit() const;
+ /// Returns true if the palette is a grey palette (may not be 8-bit).
+ bool IsGreyPaletteAny() const;
+
+ typedef o3tl::cow_wrapper< ImplBitmapPalette > ImplType;
+
+private:
+ BitmapPalette(const BitmapColor* first, const BitmapColor* last);
+
+ ImplType mpImpl;
+};
+
+template <size_t N>
+BitmapPalette::BitmapPalette(const std::array<BitmapColor, N>& colors)
+ : BitmapPalette(colors.data(), colors.data() + N)
+{
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */