sw/source/core/objectpositioning/environmentofanchoredobject.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 <environmentofanchoredobject.hxx>
  21 #include <frame.hxx>
  22 #include <pagefrm.hxx>
  23
  24 using namespace objectpositioning;
  25
  26 SwEnvironmentOfAnchoredObject::SwEnvironmentOfAnchoredObject(
  27                                                 const bool   _bFollowTextFlow )
  28     : mbFollowTextFlow( _bFollowTextFlow )
  29 {}
  30
  31 SwEnvironmentOfAnchoredObject::~SwEnvironmentOfAnchoredObject()
  32 {}
  33
  34 /** determine environment layout frame for possible horizontal object positions */
  35 const SwLayoutFrame& SwEnvironmentOfAnchoredObject::GetHoriEnvironmentLayoutFrame(
  36                                             const SwFrame& _rHoriOrientFrame ) const
  37 {
  38     const SwFrame* pHoriEnvironmentLayFrame = &_rHoriOrientFrame;
  39
  40     if ( !mbFollowTextFlow )
  41     {
  42         // No exception any more for page alignment.
  43         // the page frame determines the horizontal layout environment.
  44         pHoriEnvironmentLayFrame = _rHoriOrientFrame.FindPageFrame();
  45     }
  46     else
  47     {
  48         while ( !pHoriEnvironmentLayFrame->IsCellFrame() &&
  49                 !pHoriEnvironmentLayFrame->IsFlyFrame() &&
  50                 !pHoriEnvironmentLayFrame->IsPageFrame() )
  51         {
  52             pHoriEnvironmentLayFrame = pHoriEnvironmentLayFrame->GetUpper();
  53             OSL_ENSURE( pHoriEnvironmentLayFrame,
  54                     "SwEnvironmentOfAnchoredObject::GetHoriEnvironmentLayoutFrame(..) - no page|fly|cell frame found" );
  55         }
  56     }
  57
  58     OSL_ENSURE( dynamic_cast< const SwLayoutFrame *>( pHoriEnvironmentLayFrame ) !=  nullptr,
  59                 "SwEnvironmentOfAnchoredObject::GetHoriEnvironmentLayoutFrame(..) - found frame isn't a layout frame" );
  60
  61     return static_cast<const SwLayoutFrame&>(*pHoriEnvironmentLayFrame);
  62 }
  63
  64 /** determine environment layout frame for possible vertical object positions */
  65 const SwLayoutFrame& SwEnvironmentOfAnchoredObject::GetVertEnvironmentLayoutFrame(
  66                                             const SwFrame& _rVertOrientFrame ) const
  67 {
  68     const SwFrame* pVertEnvironmentLayFrame = &_rVertOrientFrame;
  69
  70     if ( !mbFollowTextFlow )
  71     {
  72         // No exception any more for page alignment.
  73         // the page frame determines the vertical layout environment.
  74         pVertEnvironmentLayFrame = _rVertOrientFrame.FindPageFrame();
  75     }
  76     else
  77     {
  78         while ( !pVertEnvironmentLayFrame->IsCellFrame() &&
  79                 !pVertEnvironmentLayFrame->IsFlyFrame() &&
  80                 !pVertEnvironmentLayFrame->IsHeaderFrame() &&
  81                 !pVertEnvironmentLayFrame->IsFooterFrame() &&
  82                 !pVertEnvironmentLayFrame->IsFootnoteFrame() &&
  83                 !pVertEnvironmentLayFrame->IsPageBodyFrame() &&
  84                 !pVertEnvironmentLayFrame->IsPageFrame() )
  85         {
  86             pVertEnvironmentLayFrame = pVertEnvironmentLayFrame->GetUpper();
  87             OSL_ENSURE( pVertEnvironmentLayFrame,
  88                     "SwEnvironmentOfAnchoredObject::GetVertEnvironmentLayoutFrame(..) - proposed frame not found" );
  89         }
  90     }
  91
  92     OSL_ENSURE( dynamic_cast< const SwLayoutFrame *>( pVertEnvironmentLayFrame ) !=  nullptr,
  93                 "SwEnvironmentOfAnchoredObject::GetVertEnvironmentLayoutFrame(..) - found frame isn't a layout frame" );
  94
  95     return static_cast<const SwLayoutFrame&>(*pVertEnvironmentLayFrame);
  96 }
  97
  98 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */