vcl/quartz/CoreTextFontFace.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
   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 <sal/log.hxx>
  22
  23 #ifdef MACOSX
  24 #include <osx/saldata.hxx>
  25 #include <osx/salinst.h>
  26 #endif
  27 #include <font/LogicalFontInstance.hxx>
  28 #include <quartz/CoreTextFont.hxx>
  29 #include <quartz/CoreTextFontFace.hxx>
  30 #include <quartz/salgdi.h>
  31 #include <quartz/utils.h>
  32
  33 CoreTextFontFace::CoreTextFontFace(const FontAttributes& rDFA, CTFontDescriptorRef xFontDescriptor)
  34     : vcl::font::PhysicalFontFace(rDFA)
  35     , mxFontDescriptor(xFontDescriptor)
  36 {
  37     CFRetain(mxFontDescriptor);
  38 }
  39
  40 CoreTextFontFace::~CoreTextFontFace() { CFRelease(mxFontDescriptor); }
  41
  42 sal_IntPtr CoreTextFontFace::GetFontId() const
  43 {
  44     return reinterpret_cast<sal_IntPtr>(mxFontDescriptor);
  45 }
  46
  47 const std::vector<hb_variation_t>& CoreTextFontFace::GetVariations(const LogicalFontInstance&) const
  48 {
  49     if (!mxVariations)
  50     {
  51         mxVariations.emplace();
  52         CTFontRef pFont = CTFontCreateWithFontDescriptor(mxFontDescriptor, 0.0, nullptr);
  53         if (pFont)
  54         {
  55             CFArrayRef pAxes = CTFontCopyVariationAxes(pFont);
  56             if (pAxes)
  57             {
  58                 CFDictionaryRef pVariations = CTFontCopyVariation(pFont);
  59                 if (pVariations)
  60                 {
  61                     CFIndex nAxes = CFArrayGetCount(pAxes);
  62                     for (CFIndex i = 0; i < nAxes; ++i)
  63                     {
  64                         auto pAxis = static_cast<CFDictionaryRef>(CFArrayGetValueAtIndex(pAxes, i));
  65                         if (pAxis)
  66                         {
  67                             hb_tag_t nTag;
  68                             auto pTag = static_cast<CFNumberRef>(
  69                                 CFDictionaryGetValue(pAxis, kCTFontVariationAxisIdentifierKey));
  70                             if (!pTag)
  71                                 continue;
  72                             CFNumberGetValue(pTag, kCFNumberIntType, &nTag);
  73
  74                             float fValue;
  75                             auto pValue
  76                                 = static_cast<CFNumberRef>(CFDictionaryGetValue(pVariations, pTag));
  77                             if (!pValue)
  78                                 continue;
  79                             CFNumberGetValue(pValue, kCFNumberFloatType, &fValue);
  80
  81                             mxVariations->push_back({ nTag, fValue });
  82                         }
  83                     }
  84                     CFRelease(pVariations);
  85                 }
  86                 CFRelease(pAxes);
  87             }
  88             CFRelease(pFont);
  89         }
  90     }
  91
  92     return *mxVariations;
  93 }
  94
  95 rtl::Reference<LogicalFontInstance>
  96 CoreTextFontFace::CreateFontInstance(const vcl::font::FontSelectPattern& rFSD) const
  97 {
  98     return new CoreTextFont(*this, rFSD);
  99 }
 100
 101 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */