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 <canvas/debug.hxx>
  22 #include <tools/diagnose_ex.h>
  23
  24 #include <comphelper/anytostring.hxx>
  25 #include <cppuhelper/exc_hlp.hxx>
  26
  27 #include "shapesubset.hxx"
  28
  29
  30 using namespace ::com::sun::star;
  31
  32 namespace slideshow
  33 {
  34     namespace internal
  35     {
  36         ShapeSubset::ShapeSubset( const AttributableShapeSharedPtr&       rOriginalShape,
  37                                   const DocTreeNode&                      rTreeNode,
  38                                   const SubsettableShapeManagerSharedPtr& rShapeManager ) :
  39             mpOriginalShape( rOriginalShape ),
  40             mpSubsetShape(),
  41             maTreeNode( rTreeNode ),
  42             mpShapeManager( rShapeManager )
  43         {
  44             ENSURE_OR_THROW( mpShapeManager,
  45                               "ShapeSubset::ShapeSubset(): Invalid shape manager" );
  46         }
  47
  48         ShapeSubset::ShapeSubset( const ShapeSubsetSharedPtr&   rOriginalSubset,
  49                                   const DocTreeNode&            rTreeNode ) :
  50             mpOriginalShape( rOriginalSubset->mpSubsetShape ?
  51                              rOriginalSubset->mpSubsetShape :
  52                              rOriginalSubset->mpOriginalShape ),
  53             mpSubsetShape(),
  54             maTreeNode( rTreeNode ),
  55             mpShapeManager( rOriginalSubset->mpShapeManager )
  56         {
  57             ENSURE_OR_THROW( mpShapeManager,
  58                               "ShapeSubset::ShapeSubset(): Invalid shape manager" );
  59             ENSURE_OR_THROW( rOriginalSubset->maTreeNode.isEmpty() ||
  60                               (rTreeNode.getStartIndex() >= rOriginalSubset->maTreeNode.getStartIndex() &&
  61                                rTreeNode.getEndIndex() <= rOriginalSubset->maTreeNode.getEndIndex()),
  62                               "ShapeSubset::ShapeSubset(): Subset is bigger than parent" );
  63         }
  64
  65         ShapeSubset::ShapeSubset( const AttributableShapeSharedPtr&       rOriginalShape,
  66                                   const SubsettableShapeManagerSharedPtr& rShapeManager ) :
  67             mpOriginalShape( rOriginalShape ),
  68             mpSubsetShape(),
  69             maTreeNode(),
  70             mpShapeManager( rShapeManager )
  71         {
  72             ENSURE_OR_THROW( mpShapeManager,
  73                               "ShapeSubset::ShapeSubset(): Invalid shape manager" );
  74         }
  75
  76         ShapeSubset::~ShapeSubset()
  77         {
  78             try
  79             {
  80                 // if not done yet: revoke subset from original
  81                 disableSubsetShape();
  82             }
  83             catch (uno::Exception &)
  84             {
  85                 OSL_FAIL( OUStringToOString(
  86                                 comphelper::anyToString(
  87                                     cppu::getCaughtException() ),
  88                                 RTL_TEXTENCODING_UTF8 ).getStr() );
  89             }
  90         }
  91
  92         AttributableShapeSharedPtr ShapeSubset::getSubsetShape() const
  93         {
  94             return mpSubsetShape ? mpSubsetShape : mpOriginalShape;
  95         }
  96
  97         bool ShapeSubset::enableSubsetShape()
  98         {
  99             if( !mpSubsetShape &&
 100                 !maTreeNode.isEmpty() )
 101             {
 102                 mpSubsetShape = mpShapeManager->getSubsetShape(
 103                     mpOriginalShape,
 104                     maTreeNode );
 105             }
 106
 107             return static_cast< bool >(mpSubsetShape);
 108         }
 109
 110         void ShapeSubset::disableSubsetShape()
 111         {
 112             if( mpSubsetShape )
 113             {
 114                 mpShapeManager->revokeSubset( mpOriginalShape,
 115                                               mpSubsetShape );
 116                 mpSubsetShape.reset();
 117             }
 118         }
 119
 120         bool ShapeSubset::isFullSet() const
 121         {
 122             return maTreeNode.isEmpty();
 123         }
 124
 125         DocTreeNode ShapeSubset::getSubset() const
 126         {
 127             return maTreeNode;
 128         }
 129
 130     }
 131 }
 132
 133 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */