vcl/inc/fontinstance.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_VCL_INC_FONTINSTANCE_HXX
  21 #define INCLUDED_VCL_INC_FONTINSTANCE_HXX
  22
  23 #include "fontselect.hxx"
  24 #include "impfontmetricdata.hxx"
  25
  26 #include <unordered_map>
  27
  28 class ImplFontCache;
  29 class ConvertChar;
  30
  31 // TODO: allow sharing of metrics for related fonts
  32
  33 class VCL_PLUGIN_PUBLIC LogicalFontInstance
  34 {
  35 public:
  36     explicit        LogicalFontInstance( const FontSelectPattern& );
  37     virtual         ~LogicalFontInstance();
  38
  39 public: // TODO: make data members private
  40     ImplFontCache * mpFontCache;
  41     FontSelectPattern  maFontSelData;       // FontSelectionData
  42     ImplFontMetricDataRef mxFontMetric;        // Font attributes
  43     const ConvertChar* mpConversion;        // used e.g. for StarBats->StarSymbol
  44
  45     long            mnLineHeight;
  46     sal_uInt32      mnRefCount;
  47     short           mnOwnOrientation;       // text angle if lower layers don't rotate text themselves
  48     short           mnOrientation;          // text angle in 3600 system
  49     bool            mbInit;                 // true if maFontMetric member is valid
  50
  51     void            AddFallbackForUnicode( sal_UCS4, FontWeight eWeight, const OUString& rFontName );
  52     bool            GetFallbackForUnicode( sal_UCS4, FontWeight eWeight, OUString* pFontName ) const;
  53     void            IgnoreFallbackForUnicode( sal_UCS4, FontWeight eWeight, const OUString& rFontName );
  54
  55 private:
  56     // cache of Unicode characters and replacement font names
  57     // TODO: a fallback map can be shared with many other ImplFontEntries
  58     // TODO: at least the ones which just differ in orientation, stretching or height
  59     typedef ::std::unordered_map< ::std::pair<sal_UCS4,FontWeight>, OUString > UnicodeFallbackList;
  60     UnicodeFallbackList* mpUnicodeFallbackList;
  61 };
  62
  63 #endif // INCLUDED_VCL_INC_FONTINSTANCE_HXX
  64
  65 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */