slideshow/source/engine/transitions/transitiontools.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 "transitiontools.hxx"
  22 #include <basegfx/polygon/b2dpolygon.hxx>
  23 #include <basegfx/polygon/b2dpolygontools.hxx>
  24 #include <basegfx/matrix/b2dhommatrixtools.hxx>
  25
  26
  27 namespace slideshow::internal {
  28
  29 // TODO(Q2): Move this to basegfx
  30 ::basegfx::B2DPolygon createUnitRect()
  31 {
  32     return ::basegfx::utils::createPolygonFromRect(
  33         ::basegfx::B2DRectangle(0.0,0.0,
  34                                 1.0,1.0 ) );
  35 }
  36
  37 ::basegfx::B2DPolyPolygon flipOnYAxis(
  38     ::basegfx::B2DPolyPolygon const & polypoly )
  39 {
  40     ::basegfx::B2DPolyPolygon res(polypoly);
  41     res.transform(basegfx::utils::createScaleTranslateB2DHomMatrix(-1.0, 1.0, 1.0, 0.0));
  42     res.flip();
  43     return res;
  44 }
  45
  46 ::basegfx::B2DPolyPolygon flipOnXAxis(
  47     ::basegfx::B2DPolyPolygon const & polypoly )
  48 {
  49     ::basegfx::B2DPolyPolygon res(polypoly);
  50     res.transform(basegfx::utils::createScaleTranslateB2DHomMatrix(1.0, -1.0, 0.0, 1.0));
  51     res.flip();
  52     return res;
  53 }
  54
  55 }
  56
  57 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */