vcl/qt5/QtFontFace.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
  22 #include <unotools/fontdefs.hxx>
  23
  24 #include <QtFontFace.hxx>
  25 #include <QtFont.hxx>
  26 #include <QtTools.hxx>
  27
  28 #include <font/LogicalFontInstance.hxx>
  29 #include <font/FontSelectPattern.hxx>
  30 #include <font/PhysicalFontCollection.hxx>
  31
  32 #include <QtGui/QFont>
  33 #include <QtGui/QFontDatabase>
  34 #include <QtGui/QFontInfo>
  35 #include <QtGui/QRawFont>
  36 #include <utility>
  37
  38 using namespace vcl;
  39
  40 QtFontFace::QtFontFace(const QtFontFace& rSrc)
  41     : vcl::font::PhysicalFontFace(rSrc)
  42     , m_aFontId(rSrc.m_aFontId)
  43     , m_eFontIdType(rSrc.m_eFontIdType)
  44 {
  45 }
  46
  47 FontWeight QtFontFace::toFontWeight(const int nWeight)
  48 {
  49     if (nWeight <= QFont::Thin)
  50         return WEIGHT_THIN;
  51     if (nWeight <= QFont::ExtraLight)
  52         return WEIGHT_ULTRALIGHT;
  53     if (nWeight <= QFont::Light)
  54         return WEIGHT_LIGHT;
  55     if (nWeight <= QFont::Normal)
  56         return WEIGHT_NORMAL;
  57     if (nWeight <= QFont::Medium)
  58         return WEIGHT_MEDIUM;
  59     if (nWeight <= QFont::DemiBold)
  60         return WEIGHT_SEMIBOLD;
  61     if (nWeight <= QFont::Bold)
  62         return WEIGHT_BOLD;
  63     if (nWeight <= QFont::ExtraBold)
  64         return WEIGHT_ULTRABOLD;
  65     return WEIGHT_BLACK;
  66 }
  67
  68 FontWidth QtFontFace::toFontWidth(const int nStretch)
  69 {
  70     if (nStretch == 0) // QFont::AnyStretch since Qt 5.8
  71         return WIDTH_DONTKNOW;
  72     if (nStretch <= QFont::UltraCondensed)
  73         return WIDTH_ULTRA_CONDENSED;
  74     if (nStretch <= QFont::ExtraCondensed)
  75         return WIDTH_EXTRA_CONDENSED;
  76     if (nStretch <= QFont::Condensed)
  77         return WIDTH_CONDENSED;
  78     if (nStretch <= QFont::SemiCondensed)
  79         return WIDTH_SEMI_CONDENSED;
  80     if (nStretch <= QFont::Unstretched)
  81         return WIDTH_NORMAL;
  82     if (nStretch <= QFont::SemiExpanded)
  83         return WIDTH_SEMI_EXPANDED;
  84     if (nStretch <= QFont::Expanded)
  85         return WIDTH_EXPANDED;
  86     if (nStretch <= QFont::ExtraExpanded)
  87         return WIDTH_EXTRA_EXPANDED;
  88     return WIDTH_ULTRA_EXPANDED;
  89 }
  90
  91 FontItalic QtFontFace::toFontItalic(const QFont::Style eStyle)
  92 {
  93     switch (eStyle)
  94     {
  95         case QFont::StyleNormal:
  96             return ITALIC_NONE;
  97         case QFont::StyleItalic:
  98             return ITALIC_NORMAL;
  99         case QFont::StyleOblique:
 100             return ITALIC_OBLIQUE;
 101     }
 102
 103     return ITALIC_NONE;
 104 }
 105
 106 void QtFontFace::fillAttributesFromQFont(const QFont& rFont, FontAttributes& rFA)
 107 {
 108     QFontInfo aFontInfo(rFont);
 109
 110     rFA.SetFamilyName(toOUString(aFontInfo.family()));
 111     rFA.SetStyleName(toOUString(aFontInfo.styleName()));
 112     rFA.SetPitch(aFontInfo.fixedPitch() ? PITCH_FIXED : PITCH_VARIABLE);
 113     rFA.SetWeight(QtFontFace::toFontWeight(aFontInfo.weight()));
 114     rFA.SetItalic(QtFontFace::toFontItalic(aFontInfo.style()));
 115     rFA.SetWidthType(QtFontFace::toFontWidth(rFont.stretch()));
 116 }
 117
 118 QtFontFace* QtFontFace::fromQFont(const QFont& rFont)
 119 {
 120     FontAttributes aFA;
 121     fillAttributesFromQFont(rFont, aFA);
 122     return new QtFontFace(aFA, rFont.toString(), FontIdType::Font);
 123 }
 124
 125 QtFontFace* QtFontFace::fromQFontDatabase(const QString& aFamily, const QString& aStyle)
 126 {
 127 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
 128     auto const isFixedPitch = QFontDatabase::isFixedPitch(aFamily, aStyle);
 129     auto const weigh = QFontDatabase::weight(aFamily, aStyle);
 130     auto const italic = QFontDatabase::italic(aFamily, aStyle);
 131     auto const aPointList = QFontDatabase::pointSizes(aFamily, aStyle);
 132 #else
 133     QFontDatabase aFDB;
 134     auto const isFixedPitch = aFDB.isFixedPitch(aFamily, aStyle);
 135     auto const weigh = aFDB.weight(aFamily, aStyle);
 136     auto const italic = aFDB.italic(aFamily, aStyle);
 137     auto const aPointList = aFDB.pointSizes(aFamily, aStyle);
 138 #endif
 139
 140     FontAttributes aFA;
 141
 142     aFA.SetFamilyName(toOUString(aFamily));
 143     aFA.SetStyleName(toOUString(aStyle));
 144     aFA.SetPitch(isFixedPitch ? PITCH_FIXED : PITCH_VARIABLE);
 145     aFA.SetWeight(QtFontFace::toFontWeight(weigh));
 146     aFA.SetItalic(italic ? ITALIC_NORMAL : ITALIC_NONE);
 147
 148     int nPointSize = 0;
 149     if (!aPointList.empty())
 150         nPointSize = aPointList[0];
 151
 152     return new QtFontFace(aFA, aFamily + "," + aStyle + "," + QString::number(nPointSize),
 153                           FontIdType::FontDB);
 154 }
 155
 156 QtFontFace::QtFontFace(const FontAttributes& rFA, QString aFontID, const FontIdType eFontIdType)
 157     : PhysicalFontFace(rFA)
 158     , m_aFontId(std::move(aFontID))
 159     , m_eFontIdType(eFontIdType)
 160 {
 161 }
 162
 163 sal_IntPtr QtFontFace::GetFontId() const { return reinterpret_cast<sal_IntPtr>(&m_aFontId); }
 164
 165 QFont QtFontFace::CreateFont() const
 166 {
 167     QFont aFont;
 168     switch (m_eFontIdType)
 169     {
 170         case FontDB:
 171         {
 172             QStringList aStrList = m_aFontId.split(",");
 173             if (3 == aStrList.size())
 174             {
 175 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
 176                 aFont = QFontDatabase::font(aStrList[0], aStrList[1], aStrList[2].toInt());
 177 #else
 178                 QFontDatabase aFDB;
 179                 aFont = aFDB.font(aStrList[0], aStrList[1], aStrList[2].toInt());
 180 #endif
 181             }
 182             else
 183                 SAL_WARN("vcl.qt", "Invalid QFontDatabase font ID " << m_aFontId);
 184             break;
 185         }
 186         case Font:
 187             bool bRet = aFont.fromString(m_aFontId);
 188             SAL_WARN_IF(!bRet, "vcl.qt", "Failed to create QFont from ID: " << m_aFontId);
 189             Q_UNUSED(bRet);
 190             break;
 191     }
 192     return aFont;
 193 }
 194
 195 rtl::Reference<LogicalFontInstance>
 196 QtFontFace::CreateFontInstance(const vcl::font::FontSelectPattern& rFSD) const
 197 {
 198     return new QtFont(*this, rFSD);
 199 }
 200
 201 hb_blob_t* QtFontFace::GetHbTable(hb_tag_t nTag) const
 202 {
 203     char pTagName[5] = { '\0' };
 204     hb_tag_to_string(nTag, pTagName);
 205
 206     QFont aFont = CreateFont();
 207     QRawFont aRawFont(QRawFont::fromFont(aFont));
 208     QByteArray aTable = aRawFont.fontTable(pTagName);
 209     const sal_uInt32 nLength = aTable.size();
 210
 211     hb_blob_t* pBlob = nullptr;
 212     if (nLength > 0)
 213         pBlob = hb_blob_create(aTable.data(), nLength, HB_MEMORY_MODE_DUPLICATE, nullptr, nullptr);
 214     return pBlob;
 215 }
 216
 217 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */