canvas/source/vcl/backbuffer.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
  21 #include "backbuffer.hxx"
  22
  23
  24 namespace vclcanvas
  25 {
  26     BackBuffer::BackBuffer( const OutputDevice& rRefDevice,
  27                             bool                bMonochromeBuffer ) :
  28         maVDev( VclPtr<VirtualDevice>::Create( rRefDevice,
  29                                    sal_uInt16(bMonochromeBuffer) ) )
  30     {
  31         if( !bMonochromeBuffer )
  32         {
  33             // #i95645#
  34 #if defined( MACOSX )
  35             // use AA on VCLCanvas for Mac
  36             maVDev->SetAntialiasing( AntialiasingFlags::EnableB2dDraw | maVDev->GetAntialiasing() );
  37 #else
  38             // switch off AA for WIN32 and UNIX, the VCLCanvas does not look good with it and
  39             // is not required to do AA. It would need to be adapted to use it correctly
  40             // (especially gradient painting). This will need extra work.
  41             maVDev->SetAntialiasing( maVDev->GetAntialiasing() & ~AntialiasingFlags::EnableB2dDraw);
  42 #endif
  43         }
  44     }
  45
  46     BackBuffer::~BackBuffer()
  47     {
  48         SolarMutexGuard aGuard;
  49         maVDev.disposeAndClear();
  50     }
  51
  52     OutputDevice& BackBuffer::getOutDev()
  53     {
  54         return *maVDev.get();
  55     }
  56
  57     const OutputDevice& BackBuffer::getOutDev() const
  58     {
  59         return *maVDev.get();
  60     }
  61
  62     void BackBuffer::setSize( const ::Size& rNewSize )
  63     {
  64         maVDev->SetOutputSizePixel( rNewSize );
  65     }
  66
  67 }
  68
  69 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */