sw/source/core/view/vdraw.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 <svx/svdmodel.hxx>
  21 #include <svx/svdpage.hxx>
  22 #include <swmodule.hxx>
  23 #include <svtools/accessibilityoptions.hxx>
  24 #include <svx/svdpagv.hxx>
  25 #include <fmtanchr.hxx>
  26 #include <frmfmt.hxx>
  27
  28 #include <svx/svdoutl.hxx>
  29
  30 #include <drawdoc.hxx>
  31 #include <fesh.hxx>
  32 #include <pagefrm.hxx>
  33 #include <rootfrm.hxx>
  34 #include <viewimp.hxx>
  35 #include <dflyobj.hxx>
  36 #include <printdata.hxx>
  37 #include <dcontact.hxx>
  38 #include <dview.hxx>
  39 #include <flyfrm.hxx>
  40 #include <vcl/svapp.hxx>
  41 #include <vcl/settings.hxx>
  42 #include <vcl/canvastools.hxx>
  43 #include <sal/log.hxx>
  44
  45 #include <basegfx/range/b2irectangle.hxx>
  46
  47 #include <IDocumentDrawModelAccess.hxx>
  48
  49 void SwViewShellImp::StartAction()
  50 {
  51     if ( HasDrawView() )
  52     {
  53         CurrShell aCurr( GetShell() );
  54         if ( auto pFEShell = dynamic_cast<SwFEShell*>( m_pShell) )
  55             pFEShell->HideChainMarker(); // might have changed
  56     }
  57 }
  58
  59 void SwViewShellImp::EndAction()
  60 {
  61     if ( HasDrawView() )
  62     {
  63         CurrShell aCurr( GetShell() );
  64         if ( auto pFEShell = dynamic_cast<SwFEShell*>(m_pShell) )
  65             pFEShell->SetChainMarker(); // might have changed
  66     }
  67 }
  68
  69 void SwViewShellImp::LockPaint()
  70 {
  71     if ( HasDrawView() )
  72     {
  73         m_bResetHdlHiddenPaint = !GetDrawView()->areMarkHandlesHidden();
  74         GetDrawView()->hideMarkHandles();
  75     }
  76     else
  77     {
  78         m_bResetHdlHiddenPaint = false;
  79     }
  80 }
  81
  82 void SwViewShellImp::UnlockPaint()
  83 {
  84     if ( m_bResetHdlHiddenPaint )
  85         GetDrawView()->showMarkHandles();
  86 }
  87
  88 void SwViewShellImp::PaintLayer( const SdrLayerID _nLayerID,
  89                             SwPrintData const*const pPrintData,
  90                             SwPageFrame const& rPageFrame,
  91                             const SwRect& aPaintRect,
  92                             const Color* _pPageBackgrdColor,
  93                             const bool _bIsPageRightToLeft,
  94                             sdr::contact::ViewObjectContactRedirector* pRedirector )
  95 {
  96     if ( !HasDrawView() )
  97         return;
  98
  99     //change the draw mode in high contrast mode
 100     OutputDevice* pOutDev = GetShell()->GetOut();
 101     DrawModeFlags nOldDrawMode = pOutDev->GetDrawMode();
 102     if( GetShell()->GetWin() &&
 103         Application::GetSettings().GetStyleSettings().GetHighContrastMode() &&
 104         (!GetShell()->IsPreview()||SW_MOD()->GetAccessibilityOptions().GetIsForPagePreviews()))
 105     {
 106         pOutDev->SetDrawMode( nOldDrawMode | DrawModeFlags::SettingsLine | DrawModeFlags::SettingsFill |
 107                             DrawModeFlags::SettingsText | DrawModeFlags::SettingsGradient );
 108     }
 109
 110     // For correct handling of accessibility, high contrast, the
 111     // page background color is set as the background color at the
 112     // outliner of the draw view.  Only necessary for the layers
 113     // hell and heaven
 114     Color aOldOutlinerBackgrdColor;
 115     // set default horizontal text direction on painting <hell> or
 116     // <heaven>.
 117     EEHorizontalTextDirection aOldEEHoriTextDir = EEHorizontalTextDirection::L2R;
 118     const IDocumentDrawModelAccess& rIDDMA = GetShell()->getIDocumentDrawModelAccess();
 119     if ( (_nLayerID == rIDDMA.GetHellId()) ||
 120          (_nLayerID == rIDDMA.GetHeavenId()) )
 121     {
 122         OSL_ENSURE( _pPageBackgrdColor,
 123                 "incorrect usage of SwViewShellImp::PaintLayer: pPageBackgrdColor have to be set for painting layer <hell> or <heaven>");
 124         if ( _pPageBackgrdColor )
 125         {
 126             aOldOutlinerBackgrdColor =
 127                     GetDrawView()->GetModel()->GetDrawOutliner().GetBackgroundColor();
 128             GetDrawView()->GetModel()->GetDrawOutliner().SetBackgroundColor( *_pPageBackgrdColor );
 129         }
 130
 131         aOldEEHoriTextDir =
 132             GetDrawView()->GetModel()->GetDrawOutliner().GetDefaultHorizontalTextDirection();
 133         EEHorizontalTextDirection aEEHoriTextDirOfPage =
 134             _bIsPageRightToLeft ? EEHorizontalTextDirection::R2L : EEHorizontalTextDirection::L2R;
 135         GetDrawView()->GetModel()->GetDrawOutliner().SetDefaultHorizontalTextDirection( aEEHoriTextDirOfPage );
 136     }
 137
 138     pOutDev->Push( PushFlags::LINECOLOR );
 139     if (pPrintData)
 140     {
 141         // hide drawings but not form controls (form controls are handled elsewhere)
 142         SdrView &rSdrView = GetPageView()->GetView();
 143         rSdrView.setHideDraw( !pPrintData->IsPrintDraw() );
 144     }
 145     basegfx::B2IRectangle const pageFrame = vcl::unotools::b2IRectangleFromRectangle(rPageFrame.getFrameArea().SVRect());
 146     GetPageView()->DrawLayer(_nLayerID, pOutDev, pRedirector, aPaintRect.SVRect(), &pageFrame);
 147     pOutDev->Pop();
 148
 149     // reset background color of the outliner & default horiz. text dir.
 150     if ( (_nLayerID == rIDDMA.GetHellId()) ||
 151          (_nLayerID == rIDDMA.GetHeavenId()) )
 152     {
 153         GetDrawView()->GetModel()->GetDrawOutliner().SetBackgroundColor( aOldOutlinerBackgrdColor );
 154         GetDrawView()->GetModel()->GetDrawOutliner().SetDefaultHorizontalTextDirection( aOldEEHoriTextDir );
 155     }
 156
 157     pOutDev->SetDrawMode( nOldDrawMode );
 158
 159 }
 160
 161 #define FUZZY_EDGE 400
 162
 163 bool SwViewShellImp::IsDragPossible( const Point &rPoint )
 164 {
 165     if ( !HasDrawView() )
 166         return false;
 167
 168     const SdrMarkList &rMrkList = GetDrawView()->GetMarkedObjectList();
 169
 170     if( !rMrkList.GetMarkCount() )
 171         return false;
 172
 173     SdrObject *pO = rMrkList.GetMark(rMrkList.GetMarkCount()-1)->GetMarkedSdrObj();
 174
 175     SwRect aRect;
 176     if( pO && ::CalcClipRect( pO, aRect, false ) )
 177     {
 178         SwRect aTmp;
 179         ::CalcClipRect( pO, aTmp );
 180         aRect.Union( aTmp );
 181     }
 182     else
 183         aRect = GetShell()->GetLayout()->getFrameArea();
 184
 185     aRect.AddTop   (- FUZZY_EDGE );
 186     aRect.AddBottom(  FUZZY_EDGE );
 187     aRect.AddLeft  (- FUZZY_EDGE );
 188     aRect.AddRight (  FUZZY_EDGE );
 189     return aRect.IsInside( rPoint );
 190 }
 191
 192 void SwViewShellImp::NotifySizeChg( const Size &rNewSz )
 193 {
 194     if ( !HasDrawView() )
 195         return;
 196
 197     if ( GetPageView() )
 198         GetPageView()->GetPage()->SetSize( rNewSz );
 199
 200     // Limitation of the work area
 201     const tools::Rectangle aDocRect( Point( DOCUMENTBORDER, DOCUMENTBORDER ), rNewSz );
 202     const tools::Rectangle &rOldWork = GetDrawView()->GetWorkArea();
 203     bool bCheckDrawObjs = false;
 204     if ( aDocRect != rOldWork )
 205     {
 206         if ( rOldWork.Bottom() > aDocRect.Bottom() || rOldWork.Right() > aDocRect.Right())
 207             bCheckDrawObjs = true;
 208         GetDrawView()->SetWorkArea( aDocRect );
 209     }
 210     if ( !bCheckDrawObjs )
 211         return;
 212
 213     OSL_ENSURE( m_pShell->getIDocumentDrawModelAccess().GetDrawModel(), "NotifySizeChg without DrawModel" );
 214     SdrPage* pPage = m_pShell->getIDocumentDrawModelAccess().GetDrawModel()->GetPage( 0 );
 215     const size_t nObjs = pPage->GetObjCount();
 216     for( size_t nObj = 0; nObj < nObjs; ++nObj )
 217     {
 218         SdrObject *pObj = pPage->GetObj( nObj );
 219         if( dynamic_cast<const SwVirtFlyDrawObj*>( pObj) ==  nullptr )
 220         {
 221             // Objects not anchored to the frame, do not need to be adjusted
 222             const SwContact *pCont = GetUserCall(pObj);
 223             // this function might be called by the InsertDocument, when
 224             // a PageDesc-Attribute is set on a node. Then the SdrObject
 225             // must not have an UserCall.
 226             if( !pCont || dynamic_cast<const SwDrawContact*>( pCont) ==  nullptr )
 227                 continue;
 228
 229             const SwFrame *pAnchor = static_cast<const SwDrawContact*>(pCont)->GetAnchorFrame();
 230             if ( !pAnchor || pAnchor->IsInFly() || !pAnchor->isFrameAreaDefinitionValid() ||
 231                  !pAnchor->GetUpper() || !pAnchor->FindPageFrame() ||
 232                  (RndStdIds::FLY_AS_CHAR == pCont->GetFormat()->GetAnchor().GetAnchorId()) )
 233             {
 234                 continue;
 235             }
 236             else
 237             {
 238                 // Actually this should never happen but currently layouting
 239                 // is broken. So don't move anchors, if the page is invalid.
 240                 // This should be turned into a DBG_ASSERT, once layouting is fixed!
 241                 const SwPageFrame *pPageFrame = pAnchor->FindPageFrame();
 242                 if (!pPageFrame || pPageFrame->IsInvalid() ) {
 243                     SAL_WARN( "sw.core", "Trying to move anchor from invalid page - fix layouting!" );
 244                     continue;
 245                 }
 246             }
 247
 248             // no move for drawing objects in header/footer
 249             if ( pAnchor->FindFooterOrHeader() )
 250             {
 251                 continue;
 252             }
 253
 254             const tools::Rectangle aObjBound( pObj->GetCurrentBoundRect() );
 255             if ( !aDocRect.IsInside( aObjBound ) )
 256             {
 257                 Size aSz;
 258                 if ( aObjBound.Left() > aDocRect.Right() )
 259                     aSz.setWidth( (aDocRect.Right() - aObjBound.Left()) - MINFLY );
 260                 if ( aObjBound.Top() > aDocRect.Bottom() )
 261                     aSz.setHeight( (aDocRect.Bottom() - aObjBound.Top()) - MINFLY );
 262                 if ( aSz.Width() || aSz.Height() )
 263                     pObj->Move( aSz );
 264
 265                 // Don't let large objects disappear to the top
 266                 aSz.setWidth(0);
 267                 aSz.setHeight(0);
 268                 if ( aObjBound.Right() < aDocRect.Left() )
 269                     aSz.setWidth( (aDocRect.Left() - aObjBound.Right()) + MINFLY );
 270                 if ( aObjBound.Bottom() < aDocRect.Top() )
 271                     aSz.setHeight( (aDocRect.Top() - aObjBound.Bottom()) + MINFLY );
 272                 if ( aSz.Width() || aSz.Height() )
 273                     pObj->Move( aSz );
 274             }
 275         }
 276     }
 277 }
 278
 279 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */