sw/source/core/objectpositioning/tolayoutanchoredobjectposition.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 <tolayoutanchoredobjectposition.hxx>
  21 #include <anchoredobject.hxx>
  22 #include <frame.hxx>
  23 #include <pagefrm.hxx>
  24 #include <svx/svdobj.hxx>
  25 #include <frmfmt.hxx>
  26 #include <fmtanchr.hxx>
  27 #include <fmtornt.hxx>
  28 #include <fmtsrnd.hxx>
  29 #include <frmatr.hxx>
  30 #include <viewsh.hxx>
  31 #include <viewopt.hxx>
  32 #include <rootfrm.hxx>
  33 #include <editeng/lrspitem.hxx>
  34 #include <editeng/ulspitem.hxx>
  35
  36 using namespace ::com::sun::star;
  37
  38 namespace objectpositioning
  39 {
  40 SwToLayoutAnchoredObjectPosition::SwToLayoutAnchoredObjectPosition( SdrObject& _rDrawObj )
  41     : SwAnchoredObjectPosition( _rDrawObj )
  42 {}
  43
  44 SwToLayoutAnchoredObjectPosition::~SwToLayoutAnchoredObjectPosition()
  45 {}
  46
  47 /** calculate position for object position type TO_LAYOUT */
  48 void SwToLayoutAnchoredObjectPosition::CalcPosition()
  49 {
  50     const SwRect aObjBoundRect( GetAnchoredObj().GetObjRect() );
  51
  52     SwRectFnSet aRectFnSet(&GetAnchorFrame());
  53
  54     const SwFrameFormat& rFrameFormat = GetFrameFormat();
  55     const SvxLRSpaceItem &rLR = rFrameFormat.GetLRSpace();
  56     const SvxULSpaceItem &rUL = rFrameFormat.GetULSpace();
  57
  58     const bool bFlyAtFly = RndStdIds::FLY_AT_FLY == rFrameFormat.GetAnchor().GetAnchorId();
  59
  60     // determine position.
  61     // 'vertical' and 'horizontal' position are calculated separately
  62     Point aRelPos;
  63
  64     // calculate 'vertical' position
  65     SwFormatVertOrient aVert( rFrameFormat.GetVertOrient() );
  66     {
  67         // to-frame anchored objects are *only* vertical positioned centered or
  68         // bottom, if its wrap mode is 'through' and its anchor frame has fixed
  69         // size. Otherwise, it's positioned top.
  70         sal_Int16 eVertOrient = aVert.GetVertOrient();
  71         if ( bFlyAtFly &&
  72              ( eVertOrient == text::VertOrientation::CENTER ||
  73                eVertOrient == text::VertOrientation::BOTTOM ) &&
  74              css::text::WrapTextMode_THROUGH != rFrameFormat.GetSurround().GetSurround() &&
  75              !GetAnchorFrame().HasFixSize() )
  76         {
  77             eVertOrient = text::VertOrientation::TOP;
  78         }
  79         // #i26791# - get vertical offset to frame anchor position.
  80         SwTwips nVertOffsetToFrameAnchorPos( 0 );
  81         SwTwips nRelPosY =
  82                 GetVertRelPos( GetAnchorFrame(), GetAnchorFrame(), eVertOrient,
  83                                 aVert.GetRelationOrient(), aVert.GetPos(),
  84                                 rLR, rUL, nVertOffsetToFrameAnchorPos );
  85
  86         // keep the calculated relative vertical position - needed for filters
  87         // (including the xml-filter)
  88         {
  89             SwTwips nAttrRelPosY = nRelPosY - nVertOffsetToFrameAnchorPos;
  90             if ( aVert.GetVertOrient() != text::VertOrientation::NONE &&
  91                  aVert.GetPos() != nAttrRelPosY )
  92             {
  93                 aVert.SetPos( nAttrRelPosY );
  94                 const_cast<SwFrameFormat&>(rFrameFormat).LockModify();
  95                 const_cast<SwFrameFormat&>(rFrameFormat).SetFormatAttr( aVert );
  96                 const_cast<SwFrameFormat&>(rFrameFormat).UnlockModify();
  97             }
  98         }
  99
 100         // determine absolute 'vertical' position, depending on layout-direction
 101         // #i26791# - determine offset to 'vertical' frame
 102         // anchor position, depending on layout-direction
 103         if( aRectFnSet.IsVert() )
 104         {
 105             if ( aRectFnSet.IsVertL2R() )
 106                    aRelPos.setX( nRelPosY );
 107             else
 108                    aRelPos.setX( -nRelPosY - aObjBoundRect.Width() );
 109             maOffsetToFrameAnchorPos.setX( nVertOffsetToFrameAnchorPos );
 110         }
 111         else
 112         {
 113             aRelPos.setY( nRelPosY );
 114             maOffsetToFrameAnchorPos.setY( nVertOffsetToFrameAnchorPos );
 115         }
 116
 117         // if in online-layout the bottom of to-page anchored object is beyond
 118         // the page bottom, the page frame has to grow by growing its body frame.
 119         const SwViewShell *pSh = GetAnchorFrame().getRootFrame()->GetCurrShell();
 120         if ( !bFlyAtFly && GetAnchorFrame().IsPageFrame() &&
 121              pSh && pSh->GetViewOptions()->getBrowseMode() )
 122         {
 123             const tools::Long nAnchorBottom = GetAnchorFrame().getFrameArea().Bottom();
 124             const tools::Long nBottom = GetAnchorFrame().getFrameArea().Top() +
 125                                  aRelPos.Y() + aObjBoundRect.Height();
 126             if ( nAnchorBottom < nBottom )
 127             {
 128                 static_cast<SwPageFrame&>(GetAnchorFrame()).
 129                         FindBodyCont()->Grow( nBottom - nAnchorBottom );
 130             }
 131         }
 132     } // end of determination of vertical position
 133
 134     // calculate 'horizontal' position
 135     SwFormatHoriOrient aHori( rFrameFormat.GetHoriOrient() );
 136     {
 137         // consider toggle of horizontal position for even pages.
 138         const bool bToggle = aHori.IsPosToggle() &&
 139                              !GetAnchorFrame().FindPageFrame()->OnRightPage();
 140         sal_Int16 eHoriOrient = aHori.GetHoriOrient();
 141         sal_Int16 eRelOrient = aHori.GetRelationOrient();
 142         // toggle orientation
 143         ToggleHoriOrientAndAlign( bToggle, eHoriOrient, eRelOrient );
 144
 145         // determine alignment values:
 146         // <nWidth>: 'width' of the alignment area
 147         // <nOffset>: offset of alignment area, relative to 'left' of
 148         //            frame anchor position
 149         SwTwips nWidth, nOffset;
 150         {
 151             bool bDummy; // in this context irrelevant output parameter
 152             GetHoriAlignmentValues( GetAnchorFrame(), GetAnchorFrame(),
 153                                      eRelOrient, false,
 154                                      nWidth, nOffset, bDummy );
 155         }
 156
 157         SwTwips nObjWidth = aRectFnSet.GetWidth(aObjBoundRect);
 158
 159         // determine relative horizontal position
 160         SwTwips nRelPosX;
 161         if ( text::HoriOrientation::NONE == eHoriOrient )
 162         {
 163             if( bToggle ||
 164                 ( !aHori.IsPosToggle() && GetAnchorFrame().IsRightToLeft() ) )
 165             {
 166                 nRelPosX = nWidth - nObjWidth - aHori.GetPos();
 167             }
 168             else
 169             {
 170                 nRelPosX = aHori.GetPos();
 171             }
 172         }
 173         else if ( text::HoriOrientation::CENTER == eHoriOrient )
 174             nRelPosX = (nWidth / 2) - (nObjWidth / 2);
 175         else if (text::HoriOrientation::RIGHT == eHoriOrient)
 176             nRelPosX
 177                 = nWidth
 178                   - (nObjWidth + (aRectFnSet.IsVert() ? rUL.GetLower() : rLR.ResolveRight({})));
 179         else
 180             nRelPosX = aRectFnSet.IsVert() ? rUL.GetUpper() : rLR.ResolveLeft({});
 181         nRelPosX += nOffset;
 182
 183         // no 'negative' relative horizontal position
 184         // OD 06.11.2003 #FollowTextFlowAtFrame# - negative positions allow for
 185         // to frame anchored objects.
 186         if ( !bFlyAtFly && nRelPosX < 0 )
 187         {
 188             nRelPosX = 0;
 189         }
 190
 191         // determine absolute 'horizontal' position, depending on layout-direction
 192         // #i26791# - determine offset to 'horizontal' frame
 193         // anchor position, depending on layout-direction
 194         if( aRectFnSet.IsVert() || aRectFnSet.IsVertL2R() )
 195         {
 196
 197             aRelPos.setY( nRelPosX );
 198             maOffsetToFrameAnchorPos.setY( nOffset );
 199         }
 200         else
 201         {
 202             aRelPos.setX( nRelPosX );
 203             maOffsetToFrameAnchorPos.setX( nOffset );
 204         }
 205
 206         // keep the calculated relative horizontal position - needed for filters
 207         // (including the xml-filter)
 208         {
 209             SwTwips nAttrRelPosX = nRelPosX - nOffset;
 210             if ( text::HoriOrientation::NONE != aHori.GetHoriOrient() &&
 211                  aHori.GetPos() != nAttrRelPosX )
 212             {
 213                 aHori.SetPos( nAttrRelPosX );
 214                 const_cast<SwFrameFormat&>(rFrameFormat).LockModify();
 215                 const_cast<SwFrameFormat&>(rFrameFormat).SetFormatAttr( aHori );
 216                 const_cast<SwFrameFormat&>(rFrameFormat).UnlockModify();
 217             }
 218         }
 219     } // end of determination of horizontal position
 220
 221     // keep calculate relative position
 222     maRelPos = aRelPos;
 223 }
 224
 225 }
 226
 227 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */