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