slideshow/source/engine/shapesubset.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 <comphelper/diagnose_ex.hxx>
  22
  23 #include <shapesubset.hxx>
  24 #include <utility>
  25
  26
  27 using namespace ::com::sun::star;
  28
  29 namespace slideshow::internal
  30 {
  31         ShapeSubset::ShapeSubset( AttributableShapeSharedPtr              xOriginalShape,
  32                                   const DocTreeNode&                      rTreeNode,
  33                                   SubsettableShapeManagerSharedPtr xShapeManager ) :
  34             mpOriginalShape(std::move( xOriginalShape )),
  35             mpSubsetShape(),
  36             maTreeNode( rTreeNode ),
  37             mpShapeManager(std::move( xShapeManager ))
  38         {
  39             ENSURE_OR_THROW( mpShapeManager,
  40                               "ShapeSubset::ShapeSubset(): Invalid shape manager" );
  41         }
  42
  43         ShapeSubset::ShapeSubset( const ShapeSubsetSharedPtr&   rOriginalSubset,
  44                                   const DocTreeNode&            rTreeNode ) :
  45             mpOriginalShape( rOriginalSubset->mpSubsetShape ?
  46                              rOriginalSubset->mpSubsetShape :
  47                              rOriginalSubset->mpOriginalShape ),
  48             mpSubsetShape(),
  49             maTreeNode( rTreeNode ),
  50             mpShapeManager( rOriginalSubset->mpShapeManager )
  51         {
  52             ENSURE_OR_THROW( mpShapeManager,
  53                               "ShapeSubset::ShapeSubset(): Invalid shape manager" );
  54             ENSURE_OR_THROW( rOriginalSubset->maTreeNode.isEmpty() ||
  55                               (rTreeNode.getStartIndex() >= rOriginalSubset->maTreeNode.getStartIndex() &&
  56                                rTreeNode.getEndIndex() <= rOriginalSubset->maTreeNode.getEndIndex()),
  57                               "ShapeSubset::ShapeSubset(): Subset is bigger than parent" );
  58         }
  59
  60         ShapeSubset::ShapeSubset( AttributableShapeSharedPtr        xOriginalShape,
  61                                   SubsettableShapeManagerSharedPtr  xShapeManager ) :
  62             mpOriginalShape(std::move( xOriginalShape )),
  63             mpSubsetShape(),
  64             maTreeNode(),
  65             mpShapeManager(std::move( xShapeManager ))
  66         {
  67             ENSURE_OR_THROW( mpShapeManager,
  68                               "ShapeSubset::ShapeSubset(): Invalid shape manager" );
  69         }
  70
  71         ShapeSubset::~ShapeSubset()
  72         {
  73             try
  74             {
  75                 // if not done yet: revoke subset from original
  76                 disableSubsetShape();
  77             }
  78             catch (const uno::Exception&)
  79             {
  80                 TOOLS_WARN_EXCEPTION("slideshow", "");
  81             }
  82         }
  83
  84         AttributableShapeSharedPtr const & ShapeSubset::getSubsetShape() const
  85         {
  86             return mpSubsetShape ? mpSubsetShape : mpOriginalShape;
  87         }
  88
  89         void ShapeSubset::enableSubsetShape()
  90         {
  91             if( !mpSubsetShape &&
  92                 !maTreeNode.isEmpty() )
  93             {
  94                 mpSubsetShape = mpShapeManager->getSubsetShape(
  95                     mpOriginalShape,
  96                     maTreeNode );
  97             }
  98         }
  99
 100         void ShapeSubset::disableSubsetShape()
 101         {
 102             if( mpSubsetShape )
 103             {
 104                 mpShapeManager->revokeSubset( mpOriginalShape,
 105                                               mpSubsetShape );
 106                 mpSubsetShape.reset();
 107             }
 108         }
 109
 110         bool ShapeSubset::isFullSet() const
 111         {
 112             return maTreeNode.isEmpty();
 113         }
 114
 115         const DocTreeNode& ShapeSubset::getSubset() const
 116         {
 117             return maTreeNode;
 118         }
 119
 120 }
 121
 122 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */