vcl/qt5/Qt5Font.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 <Qt5Font.hxx>
  21 #include <Qt5Tools.hxx>
  22
  23 #include <QtGui/QFont>
  24 #include <QtGui/QRawFont>
  25
  26 static QFont::Weight GetQFontWeight(FontWeight eWeight)
  27 {
  28     switch (eWeight)
  29     {
  30         case WEIGHT_THIN:
  31             return QFont::Thin;
  32         case WEIGHT_ULTRALIGHT:
  33             return QFont::ExtraLight;
  34         case WEIGHT_LIGHT:
  35             return QFont::Light;
  36         case WEIGHT_SEMILIGHT:
  37             [[fallthrough]];
  38         case WEIGHT_DONTKNOW:
  39             [[fallthrough]];
  40         case WEIGHT_NORMAL:
  41             return QFont::Normal;
  42         case WEIGHT_MEDIUM:
  43             return QFont::Medium;
  44         case WEIGHT_SEMIBOLD:
  45             return QFont::DemiBold;
  46         case WEIGHT_BOLD:
  47             return QFont::Bold;
  48         case WEIGHT_ULTRABOLD:
  49             return QFont::ExtraBold;
  50         case WEIGHT_BLACK:
  51             return QFont::Black;
  52         case FontWeight_FORCE_EQUAL_SIZE:
  53             assert(false && "FontWeight_FORCE_EQUAL_SIZE not implementable for QFont");
  54     }
  55
  56     // so we would get enum not handled warning
  57     return QFont::Normal;
  58 }
  59
  60 Qt5Font::Qt5Font(const PhysicalFontFace& rPFF, const FontSelectPattern& rFSP)
  61     : LogicalFontInstance(rPFF, rFSP)
  62 {
  63     setFamily(toQString(rPFF.GetFamilyName()));
  64     setWeight(GetQFontWeight(rPFF.GetWeight()));
  65     setPixelSize(rFSP.mnHeight);
  66     switch (rFSP.GetItalic())
  67     {
  68         case ITALIC_DONTKNOW:
  69         case FontItalic_FORCE_EQUAL_SIZE:
  70             break;
  71         case ITALIC_NONE:
  72             setStyle(Style::StyleNormal);
  73             break;
  74         case ITALIC_OBLIQUE:
  75             setStyle(Style::StyleOblique);
  76             break;
  77         case ITALIC_NORMAL:
  78             setStyle(Style::StyleItalic);
  79             break;
  80     }
  81 }
  82
  83 static hb_blob_t* getFontTable(hb_face_t*, hb_tag_t nTableTag, void* pUserData)
  84 {
  85     char pTagName[5];
  86     LogicalFontInstance::DecodeOpenTypeTag(nTableTag, pTagName);
  87
  88     Qt5Font* pFont = static_cast<Qt5Font*>(pUserData);
  89     QRawFont aRawFont(QRawFont::fromFont(*pFont));
  90     QByteArray aTable = aRawFont.fontTable(pTagName);
  91     const sal_uInt32 nLength = aTable.size();
  92
  93     hb_blob_t* pBlob = nullptr;
  94     if (nLength > 0)
  95         pBlob = hb_blob_create(aTable.data(), nLength, HB_MEMORY_MODE_DUPLICATE, nullptr, nullptr);
  96     return pBlob;
  97 }
  98
  99 hb_font_t* Qt5Font::ImplInitHbFont()
 100 {
 101     return InitHbFont(hb_face_create_for_tables(getFontTable, this, nullptr));
 102 }
 103
 104 bool Qt5Font::GetGlyphOutline(sal_GlyphId, basegfx::B2DPolyPolygon&, bool) const { return false; }
 105
 106 bool Qt5Font::ImplGetGlyphBoundRect(sal_GlyphId nId, tools::Rectangle& rRect, bool) const
 107 {
 108     QRawFont aRawFont(QRawFont::fromFont(*this));
 109     rRect = toRectangle(aRawFont.boundingRect(nId).toAlignedRect());
 110     return true;
 111 }
 112
 113 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */