vcl: make Region ctors explicit to prevent overloading desasters

Change-Id: Id36d125b4940418833bec31a4710d6cd545629e0

38 files changed, 74 insertions, 61 deletions

diff --git a/canvas/source/vcl/spritecanvashelper.cxx b/canvas/source/vcl/spritecanvashelper.cxx
index d9a77f22212e..c62795066f93 100644
--- a/canvas/source/vcl/spritecanvashelper.cxx
+++ b/canvas/source/vcl/spritecanvashelper.cxx
@@ -88,7 +88,7 @@ namespace vclcanvas
             // wouldn't save much render time, and b) will clutter
             // scrolled sprite content outside this area)
             rOutDev.EnableMapMode( sal_False );
-            rOutDev.SetClipRegion( rRequestedArea );
+            rOutDev.SetClipRegion(Region(rRequestedArea));
 
             // repaint affected sprite directly to output device (at
             // the actual screen output position)
diff --git a/chart2/source/controller/dialogs/DataBrowser.cxx b/chart2/source/controller/dialogs/DataBrowser.cxx
index 26eab789b849..a291c5506628 100644
--- a/chart2/source/controller/dialogs/DataBrowser.cxx
+++ b/chart2/source/controller/dialogs/DataBrowser.cxx
@@ -1007,7 +1007,7 @@ void DataBrowser::PaintCell(
     // clipping
     if( aPos.X() < rRect.Right() || aPos.X() + TxtSize.Width() > rRect.Right() ||
         aPos.Y() < rRect.Top() || aPos.Y() + TxtSize.Height() > rRect.Bottom())
-        rDev.SetClipRegion( rRect );
+        rDev.SetClipRegion(Region(rRect));
 
     // allow for a disabled control ...
     sal_Bool bEnabled = IsEnabled();
diff --git a/cui/source/dialogs/about.cxx b/cui/source/dialogs/about.cxx
index 9c247d3dcdfc..e904d0f04ac1 100644
--- a/cui/source/dialogs/about.cxx
+++ b/cui/source/dialogs/about.cxx
@@ -429,7 +429,7 @@ void AboutDialog::MoveControl(Control& rControl, sal_Int32 X, sal_Int32 Y)
 
 void AboutDialog::Paint( const Rectangle& rRect )
 {
-    SetClipRegion( rRect );
+    SetClipRegion(Region(rRect));
     Point aPos ( rRect.GetWidth() - aBackgroundBitmap.GetSizePixel().Width(), rRect.GetHeight() - aBackgroundBitmap.GetSizePixel().Height() );
     DrawBitmapEx( aPos, aBackgroundBitmap );
 }
diff --git a/cui/source/options/connpooloptions.cxx b/cui/source/options/connpooloptions.cxx
index 381a8f4fda9b..0745f8f9ef96 100644
--- a/cui/source/options/connpooloptions.cxx
+++ b/cui/source/options/connpooloptions.cxx
@@ -294,7 +294,7 @@ namespace offapp
 
         if (m_aSeekRow != m_aSettings.end())
         {
-            rDev.SetClipRegion(rRect);
+            rDev.SetClipRegion(Region(rRect));
 
             sal_uInt16 nStyle = TEXT_DRAW_CLIP;
             if (!IsEnabled())
diff --git a/dbaccess/source/ui/control/RelationControl.cxx b/dbaccess/source/ui/control/RelationControl.cxx
index 5a810f5fbd8d..f1ce93fe2091 100644
--- a/dbaccess/source/ui/control/RelationControl.cxx
+++ b/dbaccess/source/ui/control/RelationControl.cxx
@@ -370,7 +370,9 @@ namespace dbaui
 
         if( aPos.X() < rRect.Right() || aPos.X() + aTextSize.Width() > rRect.Right() ||
             aPos.Y() < rRect.Top() || aPos.Y() + aTextSize.Height() > rRect.Bottom() )
-            rDev.SetClipRegion( rRect );
+        {
+            rDev.SetClipRegion(Region(rRect));
+        }
 
         rDev.DrawText( aPos, aText );
 
diff --git a/dbaccess/source/ui/control/TableGrantCtrl.cxx b/dbaccess/source/ui/control/TableGrantCtrl.cxx
index f9e8bc082642..5a27288425a9 100644
--- a/dbaccess/source/ui/control/TableGrantCtrl.cxx
+++ b/dbaccess/source/ui/control/TableGrantCtrl.cxx
@@ -435,7 +435,9 @@ void OTableGrantControl::PaintCell( OutputDevice& rDev, const Rectangle& rRect,
 
         if( aPos.X() < rRect.Right() || aPos.X() + nWidth > rRect.Right() ||
             aPos.Y() < rRect.Top() || aPos.Y() + nHeight > rRect.Bottom() )
-            rDev.SetClipRegion( rRect );
+        {
+            rDev.SetClipRegion(Region(rRect));
+        }
 
         rDev.DrawText( aPos, aText );
     }
diff --git a/dbaccess/source/ui/dlg/indexfieldscontrol.cxx b/dbaccess/source/ui/dlg/indexfieldscontrol.cxx
index c8da8ae16ee8..4bb717831cad 100644
--- a/dbaccess/source/ui/dlg/indexfieldscontrol.cxx
+++ b/dbaccess/source/ui/dlg/indexfieldscontrol.cxx
@@ -155,7 +155,7 @@ DBG_NAME(IndexFieldsControl)
         // clipping
         if (aPos.X() < _rRect.Right() || aPos.X() + TxtSize.Width() > _rRect.Right() ||
             aPos.Y() < _rRect.Top() || aPos.Y() + TxtSize.Height() > _rRect.Bottom())
-            _rDev.SetClipRegion( _rRect );
+            _rDev.SetClipRegion(Region(_rRect));
 
         // allow for a disabled control ...
         sal_Bool bEnabled = IsEnabled();
diff --git a/dbaccess/source/ui/querydesign/SelectionBrowseBox.cxx b/dbaccess/source/ui/querydesign/SelectionBrowseBox.cxx
index ff4e7809d458..249fd03165c8 100644
--- a/dbaccess/source/ui/querydesign/SelectionBrowseBox.cxx
+++ b/dbaccess/source/ui/querydesign/SelectionBrowseBox.cxx
@@ -1245,7 +1245,7 @@ sal_Bool OSelectionBrowseBox::SeekRow(long nRow)
 void OSelectionBrowseBox::PaintCell(OutputDevice& rDev, const Rectangle& rRect, sal_uInt16 nColumnId) const
 {
     DBG_CHKTHIS(OSelectionBrowseBox,NULL);
-    rDev.SetClipRegion( rRect );
+    rDev.SetClipRegion(Region(rRect));
 
     OTableFieldDescRef pEntry = NULL;
     sal_uInt16 nPos = GetColumnPos(nColumnId);
diff --git a/dbaccess/source/ui/tabledesign/TEditControl.cxx b/dbaccess/source/ui/tabledesign/TEditControl.cxx
index 554442c19754..3734961ef531 100644
--- a/dbaccess/source/ui/tabledesign/TEditControl.cxx
+++ b/dbaccess/source/ui/tabledesign/TEditControl.cxx
@@ -376,7 +376,7 @@ void OTableEditorCtrl::PaintCell(OutputDevice& rDev, const Rectangle& rRect,
     const String aText( GetCellText( m_nCurrentPos, nColumnId ));
 
     rDev.Push( PUSH_CLIPREGION );
-    rDev.SetClipRegion( rRect );
+    rDev.SetClipRegion(Region(rRect));
     rDev.DrawText( rRect, aText, TEXT_DRAW_LEFT | TEXT_DRAW_VCENTER );
     rDev.Pop();
 }
diff --git a/extensions/source/scanner/grid.cxx b/extensions/source/scanner/grid.cxx
index 2b4c18254f57..93366b9f292d 100644
--- a/extensions/source/scanner/grid.cxx
+++ b/extensions/source/scanner/grid.cxx
@@ -387,7 +387,7 @@ void GridWindow::drawNew()
 {
     if( m_nValues && m_pXValues && m_pNewYValues )
     {
-        SetClipRegion( m_aGridArea );
+        SetClipRegion(Region(m_aGridArea));
         SetLineColor( Color( COL_YELLOW ) );
         for( int i = 0; i < m_nValues-1; i++ )
         {
diff --git a/reportdesign/source/ui/dlg/GroupsSorting.cxx b/reportdesign/source/ui/dlg/GroupsSorting.cxx
index 227227b48fa2..d8b950fb1ac6 100644
--- a/reportdesign/source/ui/dlg/GroupsSorting.cxx
+++ b/reportdesign/source/ui/dlg/GroupsSorting.cxx
@@ -573,7 +573,7 @@ void OFieldExpressionControl::PaintCell( OutputDevice& rDev, const Rectangle& rR
 
     if( aPos.X() < rRect.Right() || aPos.X() + aTextSize.Width() > rRect.Right() ||
         aPos.Y() < rRect.Top() || aPos.Y() + aTextSize.Height() > rRect.Bottom() )
-        rDev.SetClipRegion( rRect );
+        rDev.SetClipRegion(Region(rRect));
 
     rDev.DrawText( aPos, aText );
 
diff --git a/sc/source/ui/view/gridwin.cxx b/sc/source/ui/view/gridwin.cxx
index 1ce833a088d0..0434b1e9660e 100644
--- a/sc/source/ui/view/gridwin.cxx
+++ b/sc/source/ui/view/gridwin.cxx
@@ -4573,7 +4573,7 @@ void ScGridWindow::UpdateFormulas()
     PolyPolygon aChangedPoly( aOutputData.GetChangedArea() );   // logic (PixelToLogic)
     if ( aChangedPoly.Count() )
     {
-        Invalidate( aChangedPoly );
+        Invalidate(Region(aChangedPoly));
     }
 
     CheckNeedsRepaint();    // #i90362# used to be called via Draw() - still needed here
diff --git a/sc/source/ui/view/gridwin4.cxx b/sc/source/ui/view/gridwin4.cxx
index 1103e5cf68e0..767dfd2ef8dd 100644
--- a/sc/source/ui/view/gridwin4.cxx
+++ b/sc/source/ui/view/gridwin4.cxx
@@ -156,8 +156,8 @@ static void lcl_DrawOneFrame( OutputDevice* pDev, const Rectangle& rInnerPixel,
         }
         long nClipStartX = bLayoutRTL ? aOuter.Left() + nBWidth : aInner.Left();
         long nClipEndX = bLayoutRTL ? aInner.Right() : aOuter.Right() - nBWidth;
-        pDev->SetClipRegion( Rectangle( nClipStartX, nButtonY + nVer/2,
-                                nClipEndX, nButtonY + nVer/2 + aTextSize.Height() ) );
+        pDev->SetClipRegion( Region(Rectangle( nClipStartX, nButtonY + nVer/2,
+                            nClipEndX, nButtonY + nVer/2 + aTextSize.Height())) );
     }
 
     pDev->DrawText( Point( nTextStart, nButtonY + nVer/2 ), rTitle );
@@ -1252,7 +1252,7 @@ void ScGridWindow::DrawButtons( SCCOL nX1, SCCOL nX2, ScTableInfo& rTabInfo, Out
             Rectangle aRect = GetListValButtonRect( aListValPos );
             aComboButton.SetPosPixel( aRect.TopLeft() );
             aComboButton.SetSizePixel( aRect.GetSize() );
-            pContentDev->SetClipRegion( aRect );
+            pContentDev->SetClipRegion(Region(aRect));
             aComboButton.Draw( false, false );
             pContentDev->SetClipRegion();           // always called from Draw() without clip region
             aComboButton.SetPosPixel( aOldPos );    // restore old state
diff --git a/sc/source/ui/view/olinewin.cxx b/sc/source/ui/view/olinewin.cxx
index ef85b7d44bf6..aa2efe27b841 100644
--- a/sc/source/ui/view/olinewin.cxx
+++ b/sc/source/ui/view/olinewin.cxx
@@ -512,9 +512,9 @@ void ScOutlineWindow::DataChanged( const DataChangedEvent& rDCEvt )
 
 void ScOutlineWindow::SetEntryAreaClipRegion()
 {
-    SetClipRegion( Rectangle(
+    SetClipRegion( Region(Rectangle(
         GetPoint( 0, mnMainFirstPos ),
-        GetPoint( GetOutputSizeLevel() - 1, mnMainLastPos ) ) );
+        GetPoint( GetOutputSizeLevel() - 1, mnMainLastPos ))));
 }
 
 void ScOutlineWindow::DrawLineRel(
diff --git a/sc/source/ui/view/printfun.cxx b/sc/source/ui/view/printfun.cxx
index 4aaa6efa0013..6244940d2f26 100644
--- a/sc/source/ui/view/printfun.cxx
+++ b/sc/source/ui/view/printfun.cxx
@@ -1596,7 +1596,8 @@ void ScPrintFunc::PrintArea( SCCOL nX1, SCROW nY1, SCCOL nX2, SCROW nY2,
     if( aTableParam.bCellContent )
         aOutputData.DrawBackground();
 
-    pDev->SetClipRegion( Rectangle( aPos, Size( aOutputData.GetScrW(), aOutputData.GetScrH() ) ) );
+    pDev->SetClipRegion(Region(Rectangle(
+                aPos, Size(aOutputData.GetScrW(), aOutputData.GetScrH()))));
     pDev->SetClipRegion();
 
     if( aTableParam.bCellContent )
@@ -1773,7 +1774,7 @@ void ScPrintFunc::PrintHF( long nPageNo, sal_Bool bHeader, long nStartY,
 
         //  Clipping fuer Text
 
-        pDev->SetClipRegion( Rectangle( aStart, aPaperSize ) );
+        pDev->SetClipRegion(Region(Rectangle(aStart, aPaperSize)));
 
         //  links
 
diff --git a/sd/source/ui/docshell/docshel2.cxx b/sd/source/ui/docshell/docshel2.cxx
index 057749c6ad86..f611e84b7a97 100644
--- a/sd/source/ui/docshell/docshel2.cxx
+++ b/sd/source/ui/docshell/docshel2.cxx
@@ -264,7 +264,7 @@ Bitmap DrawDocShell::GetPagePreviewBitmap(SdPage* pPage, sal_uInt16 nMaxEdgePixe
             pView->SetActiveLayer( pFrameView->GetActiveLayer() );
     }
 
-    pView->CompleteRedraw( &aVDev, Rectangle( aNullPt, aSize ) );
+    pView->CompleteRedraw( &aVDev, Region(Rectangle(aNullPt, aSize)) );
 
     // IsRedrawReady() always gives sal_True while ( !pView->IsRedrawReady() ) {}
     delete pView;
diff --git a/sd/source/ui/view/DocumentRenderer.cxx b/sd/source/ui/view/DocumentRenderer.cxx
index 59b1f0b96eac..83fda372a0cc 100644
--- a/sd/source/ui/view/DocumentRenderer.cxx
+++ b/sd/source/ui/view/DocumentRenderer.cxx
@@ -327,7 +327,8 @@ namespace {
         if (pView!=NULL && bPrintMarkedOnly)
             pView->DrawMarkedObj(rPrinter);
         else
-            rPrintView.CompleteRedraw(&rPrinter, Rectangle(Point(0,0), rPage.GetSize()));
+            rPrintView.CompleteRedraw(&rPrinter,
+                    Region(Rectangle(Point(0,0), rPage.GetSize())));
 
         rPrinter.SetMapMode(aOriginalMapMode);
 
diff --git a/sd/source/ui/view/clview.cxx b/sd/source/ui/view/clview.cxx
index 69247b1a652f..a5cac3ed5bb0 100644
--- a/sd/source/ui/view/clview.cxx
+++ b/sd/source/ui/view/clview.cxx
@@ -64,7 +64,7 @@ void ClientView::InvalidateOneWin(::Window& rWin)
 
 void ClientView::InvalidateOneWin(::Window& rWin, const Rectangle& rRect)
 {
-    CompleteRedraw(&rWin, rRect);
+    CompleteRedraw(&rWin, Region(rRect));
 }
 
 void ClientView::CompleteRedraw(OutputDevice* pOutDev, const Region& rReg, sdr::contact::ViewObjectContactRedirector* pRedirector )
diff --git a/svtools/source/brwbox/editbrowsebox.cxx b/svtools/source/brwbox/editbrowsebox.cxx
index 444fc9805edd..36930e7a6f4b 100644
--- a/svtools/source/brwbox/editbrowsebox.cxx
+++ b/svtools/source/brwbox/editbrowsebox.cxx
@@ -363,7 +363,7 @@ namespace svt
             Point aPos( rRect.TopLeft() );
 
             if ( ( aImageSize.Width() > rRect.GetWidth() ) || ( aImageSize.Height() > rRect.GetHeight() ) )
-                rDev.SetClipRegion(rRect);
+                rDev.SetClipRegion(Region(rRect));
 
             if ( aImageSize.Width() < rRect.GetWidth() )
                 aPos.X() += ( rRect.GetWidth() - aImageSize.Width() ) / 2;
diff --git a/svtools/source/contnr/imivctl1.cxx b/svtools/source/contnr/imivctl1.cxx
index b84ab9ed9308..0c9e425de2e0 100644
--- a/svtools/source/contnr/imivctl1.cxx
+++ b/svtools/source/contnr/imivctl1.cxx
@@ -690,7 +690,7 @@ void SvxIconChoiceCtrl_Impl::Paint( const Rectangle& rRect )
     sal_Bool bResetClipRegion = sal_False;
     if( !pView->IsClipRegion() )
     {
-        Rectangle aOutputArea( GetOutputRect() );
+        Region const aOutputArea( GetOutputRect() );
         bResetClipRegion = sal_True;
         pView->SetClipRegion( aOutputArea );
     }
@@ -740,7 +740,7 @@ void SvxIconChoiceCtrl_Impl::RepaintEntries( sal_uInt16 nEntryFlagsMask )
     if( !pView->IsClipRegion() )
     {
         bResetClipRegion = sal_True;
-        pView->SetClipRegion( aOutRect );
+        pView->SetClipRegion(Region(aOutRect));
     }
     for( size_t nCur = 0; nCur < nCount; nCur++ )
     {
@@ -1832,7 +1832,7 @@ void SvxIconChoiceCtrl_Impl::PaintEntry( SvxIconChoiceCtrlEntry* pEntry, const P
         Rectangle aOutputArea( GetOutputRect() );
         if( aOutputArea.IsOver(aTextRect) || aOutputArea.IsOver(aBmpRect) )
         {
-            pView->SetClipRegion( aOutputArea );
+            pView->SetClipRegion(Region(aOutputArea));
             bResetClipRegion = sal_True;
         }
     }
@@ -2764,7 +2764,7 @@ void SvxIconChoiceCtrl_Impl::SelectRect( const Rectangle& rRect, bool bAdd,
     if( !pView->IsClipRegion() )
     {
         bResetClipRegion = sal_True;
-        pView->SetClipRegion( GetOutputRect() );
+        pView->SetClipRegion(Region(GetOutputRect()));
     }
 
     for( size_t nPos = 0; nPos < nCount; nPos++ )
diff --git a/svtools/source/graphic/grfmgr.cxx b/svtools/source/graphic/grfmgr.cxx
index 438c2df61a28..52f8b52baaaa 100644
--- a/svtools/source/graphic/grfmgr.cxx
+++ b/svtools/source/graphic/grfmgr.cxx
@@ -554,7 +554,7 @@ bool GraphicObject::Draw( OutputDevice* pOut, const Point& rPt, const Size& rSz,
             }
             else
             {
-                pOut->IntersectClipRegion( aClipPolyPoly );
+                pOut->IntersectClipRegion(Region(aClipPolyPoly));
             }
         }
     }
@@ -693,7 +693,7 @@ sal_Bool GraphicObject::StartAnimation( OutputDevice* pOut, const Point& rPt, co
                     if( bRectClip )
                         pOut->IntersectClipRegion( aClipPolyPoly.GetBoundRect() );
                     else
-                        pOut->IntersectClipRegion( aClipPolyPoly );
+                        pOut->IntersectClipRegion(Region(aClipPolyPoly));
                 }
             }
 
diff --git a/svtools/source/toolpanel/paneltabbar.cxx b/svtools/source/toolpanel/paneltabbar.cxx
index f7922a3b30ce..34ef11563289 100644
--- a/svtools/source/toolpanel/paneltabbar.cxx
+++ b/svtools/source/toolpanel/paneltabbar.cxx
@@ -471,7 +471,10 @@ namespace svt
                 :m_rDevice( i_rImpl.m_rTabBar )
             {
                 m_rDevice.Push( PUSH_CLIPREGION );
-                m_rDevice.SetClipRegion( i_rImpl.m_aNormalizer.getTransformed( i_rImpl.m_aGeometry.getItemsRect(), i_rImpl.m_eTabAlignment ) );
+                m_rDevice.SetClipRegion(Region(
+                    i_rImpl.m_aNormalizer.getTransformed(
+                        i_rImpl.m_aGeometry.getItemsRect(),
+                        i_rImpl.m_eTabAlignment )));
             }
 
             ~ClipItemRegion()
@@ -1042,7 +1045,7 @@ namespace svt
         // background
         const Rectangle aNormalizedPaintArea( m_pImpl->m_aNormalizer.getNormalized( i_rRect, m_pImpl->m_eTabAlignment ) );
         m_pImpl->m_aRenderDevice.Push( PUSH_CLIPREGION );
-        m_pImpl->m_aRenderDevice.SetClipRegion( aNormalizedPaintArea );
+        m_pImpl->m_aRenderDevice.SetClipRegion(Region(aNormalizedPaintArea));
         m_pImpl->m_pRenderer->renderBackground();
         m_pImpl->m_aRenderDevice.Pop();
         m_pImpl->CopyFromRenderDevice( aNormalizedPaintArea );
diff --git a/svx/source/dialog/framelink.cxx b/svx/source/dialog/framelink.cxx
index d1d49ae265cd..43811e395e7e 100644
--- a/svx/source/dialog/framelink.cxx
+++ b/svx/source/dialog/framelink.cxx
@@ -715,7 +715,7 @@ inline Polygon lclCreatePolygon( const PointVec& rPoints )
 }
 
 /** Returns a polygon constructed from the five passed points. */
-Polygon lclCreatePolygon( const Point& rP1, const Point& rP2, const Point& rP3, const Point& rP4, const Point& rP5 )
+Region lclCreatePolygon( const Point& rP1, const Point& rP2, const Point& rP3, const Point& rP4, const Point& rP5 )
 {
     PointVec aPoints;
     aPoints.reserve( 5 );
@@ -724,7 +724,7 @@ Polygon lclCreatePolygon( const Point& rP1, const Point& rP2, const Point& rP3,
     aPoints.push_back( rP3 );
     aPoints.push_back( rP4 );
     aPoints.push_back( rP5 );
-    return lclCreatePolygon( aPoints );
+    return Region(lclCreatePolygon(aPoints));
 }
 
 /** Sets the color of the passed frame style to the output device.
diff --git a/svx/source/gallery2/galobj.cxx b/svx/source/gallery2/galobj.cxx
index 53975595b624..686c41f8e09e 100644
--- a/svx/source/gallery2/galobj.cxx
+++ b/svx/source/gallery2/galobj.cxx
@@ -568,7 +568,9 @@ sal_Bool SgaObjectSvDraw::DrawCentered( OutputDevice* pOut, const FmFormModel& r
             pOut->Push();
             pOut->SetMapMode( aMap );
             aView.ShowSdrPage( const_cast< FmFormPage* >( pPage ));
-            aView.CompleteRedraw( pOut, Rectangle( pOut->PixelToLogic( Point() ), pOut->GetOutputSize() ) );
+            aView.CompleteRedraw( pOut,
+                    Region(Rectangle(pOut->PixelToLogic(Point()),
+                                     pOut->GetOutputSize())));
             pOut->Pop();
 
             bRet = sal_True;
diff --git a/svx/source/svdraw/svdibrow.cxx b/svx/source/svdraw/svdibrow.cxx
index 6337a4f2ef29..5ee5d0b43325 100644
--- a/svx/source/svdraw/svdibrow.cxx
+++ b/svx/source/svdraw/svdibrow.cxx
@@ -363,7 +363,7 @@ void _SdrItemBrowserControl::PaintField(OutputDevice& rDev, const Rectangle& rRe
             rDev.DrawText(rRect.TopLeft(),pEntry->aName);
         }
     } else {
-        rDev.SetClipRegion(aR);
+        rDev.SetClipRegion(Region(aR));
         rDev.DrawText(aR.TopLeft(),GetCellText(nAktPaintRow,nColumnId));
         rDev.SetClipRegion();
     }
diff --git a/sw/source/core/doc/notxtfrm.cxx b/sw/source/core/doc/notxtfrm.cxx
index f0b041f6eb3d..05935356fc0f 100644
--- a/sw/source/core/doc/notxtfrm.cxx
+++ b/sw/source/core/doc/notxtfrm.cxx
@@ -279,7 +279,7 @@ void SwNoTxtFrm::Paint(SwRect const& rRect, SwPrintData const*const) const
          FindFlyFrm()->GetContour( aPoly, sal_True )
        )
     {
-        pOut->SetClipRegion( aPoly );
+        pOut->SetClipRegion(Region(aPoly));
         bClip = false;
     }
 
diff --git a/sw/source/core/layout/paintfrm.cxx b/sw/source/core/layout/paintfrm.cxx
index a23f3f6b512b..a261fb4026e0 100644
--- a/sw/source/core/layout/paintfrm.cxx
+++ b/sw/source/core/layout/paintfrm.cxx
@@ -2370,7 +2370,7 @@ void SwTabFrmPainter::PaintLines( OutputDevice& rDev, const SwRect& rRect ) cons
     Size aSize( rRect.SSize() );
     // Hack! Necessary, because the layout is not pixel aligned!
     aSize.Width() += nPixelSzW; aSize.Height() += nPixelSzH;
-    rDev.SetClipRegion( Rectangle( rRect.Pos(), aSize ) );
+    rDev.SetClipRegion(Region(Rectangle(rRect.Pos(), aSize)));
 
     // The following stuff if necessary to have the new table borders fit
     // into a ::SwAlignRect adjusted world.
@@ -4010,7 +4010,7 @@ void SwFlyFrm::Paint(SwRect const& rRect, SwPrintData const*const) const
                     ViewShell *pSh = getRootFrm()->GetCurrShell();
                     if ( !pOut->GetConnectMetaFile() || !pSh || !pSh->GetWin() )
                     {
-                        pOut->SetClipRegion( aPoly );
+                        pOut->SetClipRegion(Region(aPoly));
                     }
                     for ( sal_uInt16 i = 0; i < aRegion.size(); ++i )
                         PaintBackground( aRegion[i], pPage, rAttrs, sal_False, sal_True );
diff --git a/sw/source/ui/envelp/labfmt.cxx b/sw/source/ui/envelp/labfmt.cxx
index 23a445337a41..bab1b18ca3e0 100644
--- a/sw/source/ui/envelp/labfmt.cxx
+++ b/sw/source/ui/envelp/labfmt.cxx
@@ -158,7 +158,7 @@ void SwLabPreview::Paint(const Rectangle &)
         DrawLine(Point(lX0, lY0 + lOutlineH - 1), Point(lX0 + lOutlineW - 1, lY0 + lOutlineH - 1)); // Down
 
     // Labels
-    SetClipRegion (Rectangle(Point(lX0, lY0), Size(lOutlineW, lOutlineH)));
+    SetClipRegion(Region(Rectangle(Point(lX0, lY0), Size(lOutlineW, lOutlineH))));
     SetFillColor( COL_LIGHTGRAYBLUE );
     for (sal_uInt16 nRow = 0; nRow < Min((sal_uInt16) 2, (sal_uInt16) aItem.nRows); nRow++)
         for (sal_uInt16 nCol = 0; nCol < Min((sal_uInt16) 2, (sal_uInt16) aItem.nCols); nCol++)
diff --git a/vcl/inc/vcl/region.hxx b/vcl/inc/vcl/region.hxx
index acc69d86e1e8..9a5ed6884c58 100644
--- a/vcl/inc/vcl/region.hxx
+++ b/vcl/inc/vcl/region.hxx
@@ -79,12 +79,12 @@ public: // public within vcl
 #endif
 
 public:
-                    Region();
-                    Region( RegionType eType );
-                    Region( const Rectangle& rRect );
-                    Region( const Polygon& rPolygon );
-                    Region( const PolyPolygon& rPolyPoly );
-                    Region( const basegfx::B2DPolyPolygon& );
+    explicit        Region();
+    explicit        Region( RegionType eType );
+    explicit        Region( const Rectangle& rRect );
+    explicit        Region( const Polygon& rPolygon );
+    explicit        Region( const PolyPolygon& rPolyPoly );
+    explicit        Region( const basegfx::B2DPolyPolygon& );
                     Region( const Region& rRegion );
                     ~Region();
 
diff --git a/vcl/source/control/spinbtn.cxx b/vcl/source/control/spinbtn.cxx
index 20aac8e68934..897c04216f61 100644
--- a/vcl/source/control/spinbtn.cxx
+++ b/vcl/source/control/spinbtn.cxx
@@ -505,13 +505,13 @@ long SpinButton::PreNotify( NotifyEvent& rNEvt )
                     Region aRgn( GetActiveClipRegion() );
                     if( pLastRect )
                     {
-                        SetClipRegion( *pLastRect );
+                        SetClipRegion(Region(*pLastRect));
                         Paint( *pLastRect );
                         SetClipRegion( aRgn );
                     }
                     if( pRect )
                     {
-                        SetClipRegion( *pRect );
+                        SetClipRegion(Region(*pRect));
                         Paint( *pRect );
                         SetClipRegion( aRgn );
                     }
diff --git a/vcl/source/control/spinfld.cxx b/vcl/source/control/spinfld.cxx
index 604c386587ba..d50c521b84f0 100644
--- a/vcl/source/control/spinfld.cxx
+++ b/vcl/source/control/spinfld.cxx
@@ -117,7 +117,7 @@ sal_Bool ImplDrawNativeSpinfield( Window *pWin, const SpinbuttonValue& rSpinbutt
             bNativeOK = pBorder->DrawNativeControl( CTRL_SPINBOX, PART_ENTIRE_CONTROL, aRgn, CTRL_STATE_ENABLED,
                         rSpinbuttonValue, rtl::OUString() );
 
-            pBorder->SetClipRegion( oldRgn );
+            pBorder->SetClipRegion(Region(oldRgn));
         }
     }
     return bNativeOK;
@@ -925,13 +925,13 @@ long SpinField::PreNotify( NotifyEvent& rNEvt )
                         Region aRgn( GetActiveClipRegion() );
                         if( pLastRect )
                         {
-                            SetClipRegion( *pLastRect );
+                            SetClipRegion(Region(*pLastRect));
                             Paint( *pLastRect );
                             SetClipRegion( aRgn );
                         }
                         if( pRect )
                         {
-                            SetClipRegion( *pRect );
+                            SetClipRegion(Region(*pRect));
                             Paint( *pRect );
                             SetClipRegion( aRgn );
                         }
diff --git a/vcl/source/filter/sgvmain.cxx b/vcl/source/filter/sgvmain.cxx
index aea90fbb9ee1..a29952486095 100644
--- a/vcl/source/filter/sgvmain.cxx
+++ b/vcl/source/filter/sgvmain.cxx
@@ -585,14 +585,14 @@ void DrawSlideCirc(sal_Int16 cx, sal_Int16 cy, sal_Int16 rx, sal_Int16 ry, ObjAr
                     b=Int1+sal_Int16((sal_Int32)(Int2-Int1)*(sal_Int32)(i-y1) /(sal_Int32)(y2-y1+1));
                     if (b!=b0) {
                         SgfAreaColorIntens(F.FMuster,(sal_uInt8)Col1,(sal_uInt8)Col2,(sal_uInt8)b0,rOut);
-                        rOut.SetClipRegion(Rectangle(x1,i0,x2,i-1));
+                        rOut.SetClipRegion(Region(Rectangle(x1,i0,x2,i-1)));
                         rOut.DrawEllipse(Rectangle(x1,y1,x2,y2));
                         i0=i; b0=b;
                     }
                     i++;
                 }
                 SgfAreaColorIntens(F.FMuster,(sal_uInt8)Col1,(sal_uInt8)Col2,(sal_uInt8)Int2,rOut);
-                rOut.SetClipRegion(Rectangle(x1,i0,x2,y2));
+                rOut.SetClipRegion(Region(Rectangle(x1,i0,x2,y2)));
                 rOut.DrawEllipse(Rectangle(x1,y1,x2,y2));
                 rOut.SetClipRegion(ClipMerk);
             } break;
@@ -604,14 +604,14 @@ void DrawSlideCirc(sal_Int16 cx, sal_Int16 cy, sal_Int16 rx, sal_Int16 ry, ObjAr
                     b=Int1+sal_Int16((sal_Int32)(Int2-Int1)*(sal_Int32)(i-x1) /(sal_Int32)(x2-x1+1));
                     if (b!=b0) {
                         SgfAreaColorIntens(F.FMuster,(sal_uInt8)Col1,(sal_uInt8)Col2,(sal_uInt8)b0,rOut);
-                        rOut.SetClipRegion(Rectangle(i0,y1,i-1,y2));
+                        rOut.SetClipRegion(Region(Rectangle(i0,y1,i-1,y2)));
                         rOut.DrawEllipse(Rectangle(x1,y1,x2,y2));
                         i0=i; b0=b;
                     }
                     i++;
                 }
                 SgfAreaColorIntens(F.FMuster,(sal_uInt8)Col1,(sal_uInt8)Col2,(sal_uInt8)Int2,rOut);
-                rOut.SetClipRegion(Rectangle(i0,y1,x2,y2));
+                rOut.SetClipRegion(Region(Rectangle(i0,y1,x2,y2)));
                 rOut.DrawEllipse(Rectangle(x1,y1,x2,y2));
                 rOut.SetClipRegion(ClipMerk);
             } break;
diff --git a/vcl/source/gdi/gdimtf.cxx b/vcl/source/gdi/gdimtf.cxx
index a561d64814eb..e2d4c1d7c1f6 100644
--- a/vcl/source/gdi/gdimtf.cxx
+++ b/vcl/source/gdi/gdimtf.cxx
@@ -1403,7 +1403,9 @@ void GDIMetaFile::Rotate( long nAngle10 )
                 case( META_ISECTRECTCLIPREGION_ACTION ):
                 {
                     MetaISectRectClipRegionAction*  pAct = (MetaISectRectClipRegionAction*) pAction;
-                    aMtf.AddAction( new MetaISectRegionClipRegionAction( ImplGetRotatedPolygon( pAct->GetRect(), aRotAnchor, aRotOffset, fSin, fCos ) ) );
+                    aMtf.AddAction( new MetaISectRegionClipRegionAction(Region(
+                        ImplGetRotatedPolygon( pAct->GetRect(), aRotAnchor,
+                            aRotOffset, fSin, fCos )) ) );
                 }
                 break;
 
diff --git a/vcl/source/gdi/outdev4.cxx b/vcl/source/gdi/outdev4.cxx
index 390220d4f158..f487e808442f 100644
--- a/vcl/source/gdi/outdev4.cxx
+++ b/vcl/source/gdi/outdev4.cxx
@@ -800,7 +800,7 @@ void OutputDevice::DrawGradient( const PolyPolygon& rPolyPoly,
             if( OUTDEV_PRINTER == meOutDevType )
             {
                 Push( PUSH_CLIPREGION );
-                IntersectClipRegion( rPolyPoly );
+                IntersectClipRegion(Region(rPolyPoly));
                 DrawGradient( aRect, rGradient );
                 Pop();
             }
diff --git a/vcl/source/gdi/outdev6.cxx b/vcl/source/gdi/outdev6.cxx
index 821d9cecb94c..685f33e9f506 100644
--- a/vcl/source/gdi/outdev6.cxx
+++ b/vcl/source/gdi/outdev6.cxx
@@ -348,7 +348,7 @@ void OutputDevice::DrawTransparent( const PolyPolygon& rPolyPoly,
         }
 
         Push( PUSH_CLIPREGION | PUSH_LINECOLOR );
-        IntersectClipRegion( rPolyPoly );
+        IntersectClipRegion(Region(rPolyPoly));
         SetLineColor( GetFillColor() );
         const sal_Bool bOldMap = mbMap;
         EnableMapMode( sal_False );
diff --git a/vcl/source/gdi/outdevnative.cxx b/vcl/source/gdi/outdevnative.cxx
index 5a35e3145733..449af1b598f0 100644
--- a/vcl/source/gdi/outdevnative.cxx
+++ b/vcl/source/gdi/outdevnative.cxx
@@ -295,7 +295,7 @@ sal_Bool OutputDevice::DrawNativeControl( ControlType nType,
 
     Region aTestRegion( GetActiveClipRegion() );
     aTestRegion.Intersect( rControlRegion );
-    if( aTestRegion == rControlRegion )
+    if (aTestRegion == Region(rControlRegion))
         nState |= CTRL_CACHING_ALLOWED;   // control is not clipped, caching allowed
 
     sal_Bool bRet = mpGraphics->DrawNativeControl(nType, nPart, screenRegion, nState, *aScreenCtrlValue, aCaption, this );
diff --git a/vcl/source/gdi/region.cxx b/vcl/source/gdi/region.cxx
index f12b3c0aa43d..b46972a7383a 100644
--- a/vcl/source/gdi/region.cxx
+++ b/vcl/source/gdi/region.cxx
@@ -2322,7 +2322,7 @@ sal_Bool Region::IsInside( const Rectangle& rRect ) const
         return sal_False;
 
     // create region from rectangle and intersect own region
-    Region aRegion = rRect;
+    Region aRegion(rRect);
     aRegion.Exclude( *this );
 
     // rectangle is inside if exclusion is empty
@@ -2341,7 +2341,7 @@ sal_Bool Region::IsOver( const Rectangle& rRect ) const
     // Can we optimize this ??? - is used in StarDraw for brushes pointers
     // Why we have no IsOver for Regions ???
     // create region from rectangle and intersect own region
-    Region aRegion = rRect;
+    Region aRegion(rRect);
     aRegion.Intersect( *this );
 
     // rectangle is over if include is not empty
diff --git a/vcl/source/window/menu.cxx b/vcl/source/window/menu.cxx
index 1b286440357b..c8e02adada28 100644
--- a/vcl/source/window/menu.cxx
+++ b/vcl/source/window/menu.cxx
@@ -4038,7 +4038,7 @@ Region MenuFloatingWindow::ImplCalcClipRegion( sal_Bool bIncludeLogo ) const
     if ( pMenu && pMenu->pLogo && !bIncludeLogo )
         aRect.Left() += pMenu->pLogo->aBitmap.GetSizePixel().Width();
 
-    Region aRegion = aRect;
+    Region aRegion(aRect);
     if ( pMenu && pMenu->pLogo && bIncludeLogo && nScrollerHeight )
         aRegion.Union( Rectangle( Point(), Size( pMenu->pLogo->aBitmap.GetSizePixel().Width(), aOutSz.Height() ) ) );