sw/source/core/inc/fntcache.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_SW_SOURCE_CORE_INC_FNTCACHE_HXX
  21 #define INCLUDED_SW_SOURCE_CORE_INC_FNTCACHE_HXX
  22
  23 #include <sal/config.h>
  24
  25 #include <cstdint>
  26 #include <unordered_map>
  27
  28 #include <vcl/font.hxx>
  29 #include <vcl/glyphitem.hxx>
  30 #include <vcl/vclptr.hxx>
  31 #include <vcl/outdev.hxx>
  32 #include "swcache.hxx"
  33 #include "TextFrameIndex.hxx"
  34
  35 class FontMetric;
  36 class SwFntObj;
  37 class SwDrawTextInfo;
  38 class SwViewShell;
  39 class SwSubFont;
  40 class MapMode;
  41
  42 class SwFntCache : public SwCache
  43 {
  44 public:
  45     SwFntCache() : SwCache(50
  46 #ifdef DBG_UTIL
  47     , OString(RTL_CONSTASCII_STRINGPARAM("Global Font-Cache pFntCache"))
  48 #endif
  49     ) {}
  50
  51     inline SwFntObj *First( );
  52     static inline SwFntObj *Next( SwFntObj *pFntObj);
  53     void Flush();
  54 };
  55
  56 // Font cache, global variable, created/destroyed in txtinit.cxx
  57 extern SwFntCache *pFntCache;
  58 extern SwFntObj *pLastFont;
  59
  60 class SwFntObj final : public SwCacheObj
  61 {
  62     friend class SwFntAccess;
  63     friend void InitCore();
  64     friend void FinitCore();
  65
  66     vcl::Font m_aFont;
  67     vcl::Font *m_pScrFont;
  68     vcl::Font *m_pPrtFont;
  69     VclPtr<OutputDevice> m_pPrinter;
  70     sal_uInt16 m_nGuessedLeading;
  71     sal_uInt16 m_nExtLeading;
  72     sal_uInt16 m_nScrAscent;
  73     sal_uInt16 m_nPrtAscent;
  74     sal_uInt16 m_nScrHeight;
  75     sal_uInt16 m_nPrtHeight;
  76     sal_uInt16 m_nPropWidth;
  77     sal_uInt16 m_nScrHangingBaseline;
  78     sal_uInt16 m_nPrtHangingBaseline;
  79     sal_uInt16 m_nZoom;
  80     bool m_bSymbol : 1;
  81     bool m_bPaintBlank : 1;
  82
  83     static tools::Long s_nPixWidth;
  84     static MapMode *s_pPixMap;
  85
  86 public:
  87     SwFntObj( const SwSubFont &rFont, std::uintptr_t nFontCacheId,
  88               SwViewShell const *pSh );
  89
  90     virtual ~SwFntObj() override;
  91
  92     vcl::Font *GetScrFont()     { return m_pScrFont; }
  93     vcl::Font& GetFont()        { return m_aFont; }
  94     const vcl::Font& GetFont() const  { return m_aFont; }
  95
  96     sal_uInt16 GetGuessedLeading() const  { return m_nGuessedLeading; }
  97     sal_uInt16 GetExternalLeading() const  { return m_nExtLeading; }
  98
  99     sal_uInt16 GetFontAscent( const SwViewShell *pSh, const OutputDevice& rOut );
 100     sal_uInt16 GetFontHeight( const SwViewShell *pSh, const OutputDevice& rOut );
 101     sal_uInt16 GetFontLeading( const SwViewShell *pSh, const OutputDevice& rOut );
 102     sal_uInt16 GetFontHangingBaseline( const SwViewShell *pSh, const OutputDevice& rOut );
 103
 104     void GuessLeading( const SwViewShell& rSh, const FontMetric& rMet );
 105
 106     void SetDevFont( const SwViewShell *pSh, OutputDevice& rOut );
 107     OutputDevice* GetPrt() const { return m_pPrinter; }
 108     sal_uInt16   GetZoom() const { return m_nZoom; }
 109     sal_uInt16   GetPropWidth() const { return m_nPropWidth; }
 110     bool     IsSymbol() const { return m_bSymbol; }
 111
 112     void   DrawText( SwDrawTextInfo &rInf );
 113     /// determine the TextSize (of the printer)
 114     Size  GetTextSize( SwDrawTextInfo &rInf );
 115     TextFrameIndex GetModelPositionForViewPoint(SwDrawTextInfo &rInf);
 116
 117     void CreateScrFont( const SwViewShell& rSh, const OutputDevice& rOut );
 118     void CreatePrtFont( const OutputDevice& rOut );
 119 };
 120
 121 SwFntObj *SwFntCache::First( )
 122 {
 123     return static_cast<SwFntObj *>(SwCache::First());
 124 }
 125
 126 SwFntObj *SwFntCache::Next( SwFntObj *pFntObj)
 127 {
 128     return static_cast<SwFntObj *>(SwCache::Next( pFntObj ));
 129 }
 130
 131 class SwFntAccess final : public SwCacheAccess
 132 {
 133     SwViewShell const *m_pShell;
 134
 135     virtual SwCacheObj *NewObj( ) override;
 136
 137 public:
 138     SwFntAccess( const void*& rnFontCacheId, sal_uInt16 &rIndex, const void *pOwner,
 139                  SwViewShell const *pShell,
 140                  bool bCheck = false  );
 141     SwFntObj* Get() { return static_cast<SwFntObj*>( SwCacheAccess::Get() ); }
 142 };
 143
 144 #endif
 145
 146 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */