sd/source/ui/slidesorter/cache/SlsBitmapFactory.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 "SlsBitmapFactory.hxx"
  21
  22 #include <PreviewRenderer.hxx>
  23 #include <sdpage.hxx>
  24 #include <vcl/bitmapex.hxx>
  25
  26 namespace sd::slidesorter::view {
  27 class SlideSorterView;
  28 class PageObjectViewObjectContact;
  29 }
  30
  31 namespace sd::slidesorter::cache {
  32
  33 BitmapFactory::BitmapFactory()
  34     : maRenderer(false)
  35 {
  36 }
  37
  38 BitmapFactory::~BitmapFactory()
  39 {
  40 }
  41
  42 BitmapEx BitmapFactory::CreateBitmap (
  43     const SdPage& rPage,
  44     const Size& rPixelSize,
  45     const bool bDoSuperSampling)
  46 {
  47     Size aSize (rPixelSize);
  48     if (bDoSuperSampling)
  49     {
  50         // Supersampling factor
  51         int aSuperSamplingFactor = 2;
  52         aSize.setWidth( aSize.Width() * aSuperSamplingFactor );
  53         aSize.setHeight( aSize.Height() * aSuperSamplingFactor );
  54     }
  55
  56     BitmapEx aPreview (maRenderer.RenderPage (
  57         &rPage,
  58         aSize,
  59         true,
  60         false).GetBitmapEx());
  61     if (bDoSuperSampling)
  62     {
  63         aPreview.Scale(rPixelSize, BmpScaleFlag::BestQuality);
  64     }
  65
  66     return aPreview;
  67 }
  68
  69 } // end of namespace ::sd::slidesorter::cache
  70
  71 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */