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diff --git a/canvas/source/vcl/spritedevicehelper.cxx b/canvas/source/vcl/spritedevicehelper.cxx
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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_canvas.hxx"
+
+#include <canvas/debug.hxx>
+#include <canvas/canvastools.hxx>
+
+#include <toolkit/helper/vclunohelper.hxx>
+#include <vcl/canvastools.hxx>
+#include <basegfx/tools/canvastools.hxx>
+
+#include "spritedevicehelper.hxx"
+#include "spritecanvas.hxx"
+#include "spritecanvashelper.hxx"
+#include "canvasbitmap.hxx"
+
+
+using namespace ::com::sun::star;
+
+namespace vclcanvas
+{
+ SpriteDeviceHelper::SpriteDeviceHelper() :
+ mpBackBuffer()
+ {
+ }
+
+ void SpriteDeviceHelper::init( const OutDevProviderSharedPtr& pOutDev )
+ {
+ DeviceHelper::init(pOutDev);
+
+ // setup back buffer
+ OutputDevice& rOutDev( pOutDev->getOutDev() );
+ mpBackBuffer.reset( new BackBuffer( rOutDev ));
+ mpBackBuffer->setSize( rOutDev.GetOutputSizePixel() );
+
+ // #i95645#
+#if defined( QUARTZ )
+ // use AA on VCLCanvas for Mac
+ mpBackBuffer->getOutDev().SetAntialiasing( ANTIALIASING_ENABLE_B2DDRAW | mpBackBuffer->getOutDev().GetAntialiasing() );
+#else
+ // switch off AA for WIN32 and UNIX, the VCLCanvas does not look good with it and
+ // is not required to do AA. It would need to be adapted to use it correctly
+ // (especially gradient painting). This will need extra work.
+ mpBackBuffer->getOutDev().SetAntialiasing(mpBackBuffer->getOutDev().GetAntialiasing() & !ANTIALIASING_ENABLE_B2DDRAW);
+#endif
+ }
+
+ ::sal_Int32 SpriteDeviceHelper::createBuffers( ::sal_Int32 nBuffers )
+ {
+ (void)nBuffers;
+
+ // TODO(F3): implement XBufferStrategy interface. For now, we
+ // _always_ will have exactly one backbuffer
+ return 1;
+ }
+
+ void SpriteDeviceHelper::destroyBuffers()
+ {
+ // TODO(F3): implement XBufferStrategy interface. For now, we
+ // _always_ will have exactly one backbuffer
+ }
+
+ ::sal_Bool SpriteDeviceHelper::showBuffer( bool, ::sal_Bool )
+ {
+ OSL_ENSURE(false,"Not supposed to be called, handled by SpriteCanvas");
+ return sal_False;
+ }
+
+ ::sal_Bool SpriteDeviceHelper::switchBuffer( bool, ::sal_Bool )
+ {
+ OSL_ENSURE(false,"Not supposed to be called, handled by SpriteCanvas");
+ return sal_False;
+ }
+
+ void SpriteDeviceHelper::disposing()
+ {
+ // release all references
+ mpBackBuffer.reset();
+
+ DeviceHelper::disposing();
+ }
+
+ uno::Any SpriteDeviceHelper::isAccelerated() const
+ {
+ return DeviceHelper::isAccelerated();
+ }
+
+ uno::Any SpriteDeviceHelper::getDeviceHandle() const
+ {
+ return DeviceHelper::getDeviceHandle();
+ }
+
+ uno::Any SpriteDeviceHelper::getSurfaceHandle() const
+ {
+ if( !mpBackBuffer )
+ return uno::Any();
+
+ return uno::makeAny(
+ reinterpret_cast< sal_Int64 >(&mpBackBuffer->getOutDev()) );
+ }
+
+ void SpriteDeviceHelper::notifySizeUpdate( const awt::Rectangle& rBounds )
+ {
+ if( mpBackBuffer )
+ mpBackBuffer->setSize( ::Size(rBounds.Width,
+ rBounds.Height) );
+ }
+
+ void SpriteDeviceHelper::dumpScreenContent() const
+ {
+ DeviceHelper::dumpScreenContent();
+
+ static sal_uInt32 nFilePostfixCount(0);
+
+ if( mpBackBuffer )
+ {
+ String aFilename( String::CreateFromAscii("dbg_backbuffer") );
+ aFilename += String::CreateFromInt32(nFilePostfixCount);
+ aFilename += String::CreateFromAscii(".bmp");
+
+ SvFileStream aStream( aFilename, STREAM_STD_READWRITE );
+
+ const ::Point aEmptyPoint;
+ mpBackBuffer->getOutDev().EnableMapMode( FALSE );
+ aStream << mpBackBuffer->getOutDev().GetBitmap(aEmptyPoint,
+ mpBackBuffer->getOutDev().GetOutputSizePixel());
+ }
+
+ ++nFilePostfixCount;
+ }
+
+}