vcl/source/font/FontSelectPattern.cxx

   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 #include <sal/config.h>
  21 #include <o3tl/safeint.hxx>
  22 #include <tools/gen.hxx>
  23
  24 #include <utility>
  25 #include <vcl/font.hxx>
  26
  27 #include <font/FontSelectPattern.hxx>
  28 #include <font/PhysicalFontFace.hxx>
  29
  30 namespace vcl::font
  31 {
  32
  33 // These mustn't conflict with font name lists which use ; and ,
  34 const char FontSelectPattern::FEAT_PREFIX = ':';
  35 const char FontSelectPattern::FEAT_SEPARATOR = '&';
  36
  37 FontSelectPattern::FontSelectPattern( const vcl::Font& rFont,
  38     OUString aSearchName, const Size& rSize, float fExactHeight, bool bNonAntialias)
  39     : maSearchName(std::move( aSearchName ))
  40     , mnWidth( rSize.Width() )
  41     , mnHeight( rSize.Height() )
  42     , mfExactHeight( fExactHeight)
  43     , mnOrientation( rFont.GetOrientation() )
  44     , meLanguage( rFont.GetLanguage() )
  45     , mbVertical( rFont.IsVertical() )
  46     , mbNonAntialiased(bNonAntialias)
  47     , mbEmbolden( false )
  48 {
  49     maTargetName = GetFamilyName();
  50
  51     rFont.GetFontAttributes( *this );
  52
  53     // normalize orientation between 0 and 3600
  54     if( mnOrientation < 0_deg10 || mnOrientation >= 3600_deg10 )
  55     {
  56         if( mnOrientation >= 0_deg10 )
  57             mnOrientation %= 3600_deg10;
  58         else
  59             mnOrientation = 3600_deg10 - (-mnOrientation % 3600_deg10);
  60     }
  61
  62     // normalize width and height
  63     if( mnHeight < 0 )
  64         mnHeight = o3tl::saturating_toggle_sign(mnHeight);
  65     if( mnWidth < 0 )
  66         mnWidth = o3tl::saturating_toggle_sign(mnWidth);
  67 }
  68
  69
  70 // NOTE: this ctor is still used on Windows. Do not remove.
  71 #ifdef _WIN32
  72 FontSelectPattern::FontSelectPattern( const PhysicalFontFace& rFontData,
  73     const Size& rSize, float fExactHeight, int nOrientation, bool bVertical )
  74     : FontAttributes( rFontData )
  75     , mnWidth( rSize.Width() )
  76     , mnHeight( rSize.Height() )
  77     , mfExactHeight( fExactHeight )
  78     , mnOrientation( nOrientation )
  79     , meLanguage( 0 )
  80     , mbVertical( bVertical )
  81     , mbNonAntialiased( false )
  82     , mbEmbolden( false )
  83 {
  84     maTargetName = maSearchName = GetFamilyName();
  85     // NOTE: no normalization for width/height/orientation
  86 }
  87
  88 #endif
  89
  90 size_t FontSelectPattern::hashCode() const
  91 {
  92     // TODO: does it pay off to improve this hash function?
  93     size_t nHash;
  94     // check for features and generate a unique hash if necessary
  95     if (maTargetName.indexOf(FontSelectPattern::FEAT_PREFIX)
  96         != -1)
  97     {
  98         nHash = maTargetName.hashCode();
  99     }
 100     else
 101     {
 102         nHash = maSearchName.hashCode();
 103     }
 104     nHash += 11U * mnHeight;
 105     nHash += 19 * GetWeight();
 106     nHash += 29 * GetItalic();
 107     nHash += 37 * mnOrientation.get();
 108     nHash += 41 * static_cast<sal_uInt16>(meLanguage);
 109     if( mbVertical )
 110         nHash += 53;
 111     return nHash;
 112 }
 113
 114 bool FontSelectPattern::operator==(const FontSelectPattern& rOther) const
 115 {
 116     if (!CompareDeviceIndependentFontAttributes(rOther))
 117         return false;
 118
 119     if (maTargetName != rOther.maTargetName)
 120         return false;
 121
 122     if (maSearchName != rOther.maSearchName)
 123         return false;
 124
 125     if (mnWidth != rOther.mnWidth)
 126         return false;
 127
 128     if (mnHeight != rOther.mnHeight)
 129         return false;
 130
 131     if (mfExactHeight != rOther.mfExactHeight)
 132         return false;
 133
 134     if (mnOrientation != rOther.mnOrientation)
 135         return false;
 136
 137     if (meLanguage != rOther.meLanguage)
 138         return false;
 139
 140     if (mbVertical != rOther.mbVertical)
 141         return false;
 142
 143     if (mbNonAntialiased != rOther.mbNonAntialiased)
 144         return false;
 145
 146     if (mbEmbolden != rOther.mbEmbolden)
 147         return false;
 148
 149     if (maItalicMatrix != rOther.maItalicMatrix)
 150         return false;
 151
 152     return true;
 153 }
 154 }
 155
 156 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */