1 files changed, 216 insertions, 0 deletions
diff --git a/sw/source/core/view/viewpg.cxx b/sw/source/core/view/viewpg.cxx
new file mode 100644
index 0000000000..02ebd1a69e
--- /dev/null
+++ b/sw/source/core/view/viewpg.cxx
@@ -0,0 +1,216 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <config_wasm_strip.h>
+
+#include <tools/fract.hxx>
+#include <osl/diagnose.h>
+#include <viewsh.hxx>
+#include <pagefrm.hxx>
+#include <viewimp.hxx>
+#include <printdata.hxx>
+#include <ptqueue.hxx>
+#include <fntcache.hxx>
+
+#include <vprint.hxx>
+
+using namespace ::com::sun::star;
+
+SwPagePreviewLayout* SwViewShell::PagePreviewLayout()
+{
+    return Imp()->PagePreviewLayout();
+}
+
+void SwViewShell::ShowPreviewSelection( sal_uInt16 nSelPage )
+{
+#if !ENABLE_WASM_STRIP_ACCESSIBILITY
+    Imp()->InvalidateAccessiblePreviewSelection( nSelPage );
+#else
+    (void)nSelPage;
+#endif
+}
+
+// adjust view options for page preview
+void SwViewShell::AdjustOptionsForPagePreview(SwPrintData const& rPrintOptions)
+{
+    if ( !IsPreview() )
+    {
+        OSL_FAIL( "view shell doesn't belongs to a page preview - no adjustment of its view options");
+        return;
+    }
+
+    PrepareForPrint( rPrintOptions );
+}
+
+/// print brochure
+// consider empty pages on calculation of the scaling
+// for a page to be printed.
+void SwViewShell::PrintProspect(
+    OutputDevice *pOutDev,
+    const SwPrintData &rPrintData,
+    sal_Int32 nRenderer // the index in the vector of prospect pages to be printed
+    )
+{
+    const sal_Int32 nMaxRenderer = rPrintData.GetRenderData().GetPagePairsForProspectPrinting().size() - 1;
+    OSL_ENSURE( 0 <= nRenderer && nRenderer <= nMaxRenderer, "nRenderer out of bounds");
+    Printer *pPrinter = dynamic_cast< Printer * >(pOutDev);
+    if (!pPrinter || nMaxRenderer < 0 || nRenderer < 0 || nRenderer > nMaxRenderer)
+        return;
+
+    // save settings of OutputDevice (should be done always since the
+    // output device is now provided by a call from outside the Writer)
+    pPrinter->Push();
+
+    std::pair< sal_Int32, sal_Int32 > rPagesToPrint =
+            rPrintData.GetRenderData().GetPagePairsForProspectPrinting()[ nRenderer ];
+    OSL_ENSURE( rPagesToPrint.first  == -1 || rPrintData.GetRenderData().GetValidPagesSet().count( rPagesToPrint.first ) == 1, "first Page not valid" );
+    OSL_ENSURE( rPagesToPrint.second == -1 || rPrintData.GetRenderData().GetValidPagesSet().count( rPagesToPrint.second ) == 1, "second Page not valid" );
+
+    // create a new shell for the printer
+    SwViewShell aShell( *this, nullptr, pPrinter );
+
+    CurrShell aCurr( &aShell );
+
+    aShell.PrepareForPrint( rPrintData );
+
+    //!! applying view options and formatting the document should now only be done in getRendererCount!
+
+    MapMode aMapMode( MapUnit::MapTwip );
+    Size aPrtSize( pPrinter->PixelToLogic( pPrinter->GetPaperSizePixel(), aMapMode ) );
+
+    SwTwips nMaxRowSz, nMaxColSz;
+
+    const SwPageFrame *pStPage    = nullptr;
+    const SwPageFrame *pNxtPage   = nullptr;
+    if (rPagesToPrint.first > 0)
+    {
+        pStPage = sw_getPage(*aShell.GetLayout(), rPagesToPrint.first);
+    }
+    if (rPagesToPrint.second > 0)
+    {
+        pNxtPage = sw_getPage(*aShell.GetLayout(), rPagesToPrint.second);
+    }
+
+    // i#14016 consider empty pages on calculation
+    // of page size, used for calculation of scaling.
+    Size aSttPageSize;
+    if ( pStPage )
+    {
+        if ( pStPage->IsEmptyPage() )
+        {
+            if ( pStPage->GetPhyPageNum() % 2 == 0 )
+                aSttPageSize = pStPage->GetPrev()->getFrameArea().SSize();
+            else
+                aSttPageSize = pStPage->GetNext()->getFrameArea().SSize();
+        }
+        else
+        {
+            aSttPageSize = pStPage->getFrameArea().SSize();
+        }
+    }
+    Size aNxtPageSize;
+    if ( pNxtPage )
+    {
+        if ( pNxtPage->IsEmptyPage() )
+        {
+            if ( pNxtPage->GetPhyPageNum() % 2 == 0 )
+                aNxtPageSize = pNxtPage->GetPrev()->getFrameArea().SSize();
+            else
+                aNxtPageSize = pNxtPage->GetNext()->getFrameArea().SSize();
+        }
+        else
+        {
+            aNxtPageSize = pNxtPage->getFrameArea().SSize();
+        }
+    }
+
+    if( !pStPage )
+    {
+        nMaxColSz = 2 * aNxtPageSize.Width();
+        nMaxRowSz = aNxtPageSize.Height();
+    }
+    else if( !pNxtPage )
+    {
+        nMaxColSz = 2 * aSttPageSize.Width();
+        nMaxRowSz = aSttPageSize.Height();
+    }
+    else
+    {
+        nMaxColSz = aNxtPageSize.Width() + aSttPageSize.Width();
+        nMaxRowSz = std::max( aNxtPageSize.Height(), aSttPageSize.Height() );
+    }
+
+    // set the MapMode
+    aMapMode.SetOrigin( Point() );
+    {
+        Fraction aScX( aPrtSize.Width(), nMaxColSz );
+        Fraction aScY( aPrtSize.Height(), nMaxRowSz );
+        if( aScX < aScY )
+            aScY = aScX;
+
+        {
+            // Round percentages for Drawings so that these can paint their objects properly
+            aScY *= Fraction( 1000, 1 );
+            tools::Long nTmp = static_cast<tools::Long>(aScY);
+            if( 1 < nTmp )
+                --nTmp;
+            else
+                nTmp = 1;
+            aScY = Fraction( nTmp, 1000 );
+        }
+
+        aMapMode.SetScaleY( aScY );
+        aMapMode.SetScaleX( aScY );
+    }
+
+    Size aTmpPrtSize( pPrinter->PixelToLogic( pPrinter->GetPaperSizePixel(), aMapMode ) );
+
+    // calculate start point for equal border on all sides
+    Point aSttPt( (aTmpPrtSize.Width() - nMaxColSz) / 2,
+                  (aTmpPrtSize.Height() - nMaxRowSz) / 2 );
+    for( int nC = 0; nC < 2; ++nC )
+    {
+        if( pStPage )
+        {
+            aShell.Imp()->SetFirstVisPageInvalid();
+            aShell.maVisArea = pStPage->getFrameArea();
+
+            Point aPos( aSttPt );
+            aPos -= aShell.maVisArea.Pos();
+            aMapMode.SetOrigin( aPos );
+            pPrinter->SetMapMode( aMapMode );
+            pStPage->GetUpper()->PaintSwFrame( *pOutDev, pStPage->getFrameArea() );
+        }
+
+        pStPage = pNxtPage;
+        aSttPt.AdjustX(aTmpPrtSize.Width() / 2 );
+    }
+
+    SwPaintQueue::Repaint();
+
+    //!! applying/modifying view options and formatting the document should now only be done in getRendererCount!
+
+    pFntCache->Flush();
+
+    // restore settings of OutputDevice (should be done always now since the
+    // output device is now provided by a call from outside the Writer)
+    pPrinter->Pop();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */