vcl/source/bitmap/bitmapfilter.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  */
  10
  11 #include <vcl/BitmapFilter.hxx>
  12 #include <vcl/animate/Animation.hxx>
  13
  14 #include <sal/log.hxx>
  15
  16 BitmapFilter::BitmapFilter() {}
  17
  18 BitmapFilter::~BitmapFilter() {}
  19
  20 bool BitmapFilter::Filter(BitmapEx& rBmpEx, BitmapFilter const& rFilter)
  21 {
  22     if (rBmpEx.IsEmpty())
  23     {
  24         return true;
  25     }
  26
  27     BitmapEx aTmpBmpEx(rFilter.execute(rBmpEx));
  28
  29     if (aTmpBmpEx.IsEmpty())
  30     {
  31         SAL_WARN("vcl.gdi", "Bitmap filter failed");
  32         return false;
  33     }
  34
  35     rBmpEx = aTmpBmpEx;
  36     return true;
  37 }
  38
  39 bool BitmapFilter::Filter(Animation& rAnimation, BitmapFilter const& rFilter)
  40 {
  41     SAL_WARN_IF(rAnimation.IsInAnimation(), "vcl", "Animation modified while it is animated");
  42
  43     bool bRet = false;
  44
  45     if (!rAnimation.IsInAnimation() && !rAnimation.Count())
  46     {
  47         bRet = true;
  48
  49         std::vector<std::unique_ptr<AnimationBitmap>>& aList = rAnimation.GetAnimationFrames();
  50         for (size_t i = 0, n = aList.size(); (i < n) && bRet; ++i)
  51         {
  52             bRet = BitmapFilter::Filter(aList[i]->maBitmapEx, rFilter);
  53         }
  54
  55         BitmapEx aBmpEx(rAnimation.GetBitmapEx());
  56         BitmapFilter::Filter(aBmpEx, rFilter);
  57         rAnimation.SetBitmapEx(aBmpEx);
  58     }
  59
  60     return bRet;
  61 }
  62
  63 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */