vcl/qt5/Qt5FontFace.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 "Qt5FontFace.hxx"
  21 #include "Qt5Font.hxx"
  22 #include "Qt5Tools.hxx"
  23
  24 #include <sft.hxx>
  25 #include <impfontcharmap.hxx>
  26 #include <fontinstance.hxx>
  27 #include <fontselect.hxx>
  28 #include <PhysicalFontCollection.hxx>
  29
  30 #include <QtGui/QFont>
  31 #include <QtGui/QRawFont>
  32
  33 using namespace vcl;
  34
  35 Qt5FontFace::Qt5FontFace(const Qt5FontFace& rSrc)
  36     : PhysicalFontFace(rSrc)
  37     , m_aFontId(rSrc.m_aFontId)
  38 {
  39     if (rSrc.m_xCharMap.is())
  40         m_xCharMap = rSrc.m_xCharMap;
  41 }
  42
  43 Qt5FontFace* Qt5FontFace::fromQFont(const QFont& rFont)
  44 {
  45     FontAttributes aFA;
  46     aFA.SetFamilyName(toOUString(rFont.family()));
  47     aFA.SetStyleName(toOUString(rFont.styleName()));
  48     aFA.SetItalic(rFont.italic() ? ITALIC_NORMAL : ITALIC_NONE);
  49
  50     return new Qt5FontFace(aFA, rFont.toString());
  51 }
  52
  53 Qt5FontFace::Qt5FontFace(const FontAttributes& rFA, const QString& rFontID)
  54     : PhysicalFontFace(rFA)
  55     , m_aFontId(rFontID)
  56     , m_bFontCapabilitiesRead(false)
  57 {
  58 }
  59
  60 Qt5FontFace::~Qt5FontFace() {}
  61
  62 sal_IntPtr Qt5FontFace::GetFontId() const { return reinterpret_cast<sal_IntPtr>(&m_aFontId); }
  63
  64 LogicalFontInstance* Qt5FontFace::CreateFontInstance(const FontSelectPattern& rFSD) const
  65 {
  66     return new Qt5Font(*this, rFSD);
  67 }
  68
  69 const FontCharMapRef Qt5FontFace::GetFontCharMap() const
  70 {
  71     if (m_xCharMap.is())
  72         return m_xCharMap;
  73
  74     QFont aFont;
  75     aFont.fromString(m_aFontId);
  76     QRawFont aRawFont(QRawFont::fromFont(aFont));
  77     QByteArray aCMapTable = aRawFont.fontTable("cmap");
  78     if (aCMapTable.isEmpty())
  79     {
  80         m_xCharMap = new FontCharMap();
  81         return m_xCharMap;
  82     }
  83
  84     CmapResult aCmapResult;
  85     if (ParseCMAP(reinterpret_cast<const unsigned char*>(aCMapTable.data()), aCMapTable.size(),
  86                   aCmapResult))
  87         m_xCharMap = new FontCharMap(aCmapResult);
  88
  89     return m_xCharMap;
  90 }
  91
  92 bool Qt5FontFace::GetFontCapabilities(vcl::FontCapabilities& rFontCapabilities) const
  93 {
  94     // read this only once per font
  95     if (m_bFontCapabilitiesRead)
  96     {
  97         rFontCapabilities = m_aFontCapabilities;
  98         return rFontCapabilities.oUnicodeRange || rFontCapabilities.oCodePageRange;
  99     }
 100     m_bFontCapabilitiesRead = true;
 101
 102     QFont aFont;
 103     aFont.fromString(m_aFontId);
 104     QRawFont aRawFont(QRawFont::fromFont(aFont));
 105     QByteArray aOS2Table = aRawFont.fontTable("OS/2");
 106     if (!aOS2Table.isEmpty())
 107     {
 108         vcl::getTTCoverage(m_aFontCapabilities.oUnicodeRange, m_aFontCapabilities.oCodePageRange,
 109                            reinterpret_cast<const unsigned char*>(aOS2Table.data()),
 110                            aOS2Table.size());
 111     }
 112
 113     rFontCapabilities = m_aFontCapabilities;
 114     return rFontCapabilities.oUnicodeRange || rFontCapabilities.oCodePageRange;
 115 }
 116
 117 PhysicalFontFace* Qt5FontFace::Clone() const { return new Qt5FontFace(*this); }
 118
 119 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */