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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_FONTCHARMAP_HXX
+#define INCLUDED_FONTCHARMAP_HXX
+
+#include <vcl/dllapi.h>
+#include <tools/ref.hxx>
+
+class ImplFontCharMap;
+class CmapResult;
+class FontCharMap;
+class OutputDevice;
+
+typedef sal_uInt32 sal_UCS4;
+typedef tools::SvRef<ImplFontCharMap> ImplFontCharMapRef;
+typedef tools::SvRef<FontCharMap> FontCharMapRef;
+
+class VCL_DLLPUBLIC FontCharMap : public SvRefBase
+{
+public:
+ /** A new FontCharMap is created based on a "default" map, which includes
+ all codepoints in the Unicode BMP range, including surrogates.
+ **/
+ FontCharMap();
+ FontCharMap( const CmapResult& rCR );
+ virtual ~FontCharMap() override;
+
+ /** Get the default font character map
+
+ @returns the default font character map.
+ */
+ static FontCharMapRef GetDefaultMap( bool bSymbols );
+
+ /** Determines if the font character map is the "default". The default map
+ includes all codepoints in the Unicode BMP range, including surrogates.
+
+ @returns true if default map, false if not default map.
+ */
+ bool IsDefaultMap() const;
+
+ /** Does the font character map include the UCS4 character?
+
+ @returns true if character exists in font character map, false is not.
+ */
+ bool HasChar( sal_UCS4 ) const;
+
+ /** Returns the number of chars supported by the font, which
+ are inside the unicode range from cMin to cMax (inclusive).
+
+ @param cMin Lowest codepoint in range to be counted
+ @param cMax Highest codepoint in range to be counted
+
+ @returns number of characters in the font charmap between the two
+ codepoints.
+ */
+ int CountCharsInRange( sal_UCS4 cMin, sal_UCS4 cMax ) const;
+
+ /** Get the number of characters in the font character map.
+
+ @returns number of characters in the font character map.
+ */
+ int GetCharCount() const;
+
+ /** Get the first character in the font character map.
+
+ @returns first character in the font character map.
+ */
+ sal_UCS4 GetFirstChar() const;
+
+ /** Get the last character in the font character map.
+
+ @returns last character in the font character map.
+ */
+ sal_UCS4 GetLastChar() const;
+
+ /** Get the next character in the font character map. This is important
+ because character maps (e.g. the default map which holds the characters
+ in the BMP plane) can have discontiguous ranges.
+
+ @param cChar Character from which to find next character
+
+ @returns next character in the font character map.
+ */
+ sal_UCS4 GetNextChar( sal_UCS4 cChar ) const;
+
+ /** Get the previous character in the font character map. This is important
+ because character maps (e.g. the default map which holds the characters
+ in the BMP plane) can have discontiguous ranges.
+
+ @param cChar Character from which to find previous character
+
+ @returns previous character in the font character map.
+ */
+ sal_UCS4 GetPrevChar( sal_UCS4 cChar ) const;
+
+ /** Get the index of a particular character in the font character map. The
+ index is different from the codepoint, because font character maps can
+
+ determine the index.
+
+ @param cChar Character used to find index number
+
+ @returns Index of character in font character map.
+ */
+ int GetIndexFromChar( sal_UCS4 cChar ) const;
+
+ /** Get the character at a particular index in the font character map. The
+ index is different from the codepoint, because font character maps can
+
+ determine the character.
+
+ @param nCharIndex Index used to find the character
+
+ @returns Character in font character map.
+ */
+ sal_UCS4 GetCharFromIndex( int nCharIndex ) const;
+
+ int GetGlyphIndex( sal_UCS4 ) const;
+
+private:
+ ImplFontCharMapRef mpImplFontCharMap;
+
+ friend class ::OutputDevice;
+
+ int findRangeIndex( sal_UCS4 ) const;
+
+ FontCharMap( ImplFontCharMapRef const & pIFCMap );
+
+ // prevent assignment and copy construction
+ FontCharMap( const FontCharMap& ) = delete;
+ void operator=( const FontCharMap& ) = delete;
+};
+
+// CmapResult is a normalized version of the many CMAP formats
+class VCL_PLUGIN_PUBLIC CmapResult
+{
+public:
+ explicit CmapResult( bool bSymbolic = false,
+ const sal_UCS4* pRangeCodes = nullptr, int nRangeCount = 0 );
+
+ const sal_UCS4* mpRangeCodes;
+ const int* mpStartGlyphs;
+ const sal_uInt16* mpGlyphIds;
+ int mnRangeCount;
+ bool mbSymbolic;
+ bool mbRecoded;
+};
+
+#endif // INCLUDED_FONTCHARMAP_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */