146 lines
5.0 KiB
C++
146 lines
5.0 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2008 by Sun Microsystems, Inc.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: canvasbitmap.cxx,v $
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* $Revision: 1.10 $
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_canvas.hxx"
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#include <canvas/debug.hxx>
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#include "canvasbitmap.hxx"
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#include <vcl/bmpacc.hxx>
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using namespace ::com::sun::star;
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namespace vclcanvas
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{
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// Currently, the only way to generate an XBitmap is from
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// XGraphicDevice.getCompatibleBitmap(). Therefore, we don't even
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// take a bitmap here, but a VDev directly.
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CanvasBitmap::CanvasBitmap( const ::Size& rSize,
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bool bAlphaBitmap,
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const DeviceRef& rDevice ) :
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mpDevice( rDevice )
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{
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ENSURE_AND_THROW( rDevice->getOutDev(),
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"CanvasBitmap::CanvasBitmap(): Invalid reference outdev" );
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OutputDevice& rOutDev( *rDevice->getOutDev() );
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tools::OutDevStateKeeper aStateKeeper( rOutDev );
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// create bitmap for given reference device
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// ========================================
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const USHORT nBitCount( (USHORT)24U );
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const BitmapPalette* pPalette = NULL;
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Bitmap aBitmap( rSize, nBitCount, pPalette );
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// only create alpha channel bitmap, if factory requested
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// that. Providing alpha-channeled bitmaps by default has,
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// especially under VCL, a huge performance penalty (have to
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// use alpha VDev, then).
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if( bAlphaBitmap )
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{
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AlphaMask aAlpha ( rSize );
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maCanvasHelper.init( BitmapEx( aBitmap, aAlpha ),
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*rDevice.get() );
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}
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else
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{
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maCanvasHelper.init( BitmapEx( aBitmap ),
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*rDevice.get() );
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}
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}
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CanvasBitmap::CanvasBitmap( const BitmapEx& rBitmap,
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const DeviceRef& rDevice ) :
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mpDevice( rDevice )
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{
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ENSURE_AND_THROW( rDevice->getOutDev(),
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"CanvasBitmap::CanvasBitmap(): Invalid reference outdev" );
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maCanvasHelper.init( rBitmap,
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*rDevice.get() );
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}
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void SAL_CALL CanvasBitmap::disposing()
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{
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mpDevice.clear();
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// forward to base
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CanvasBitmap_Base::disposing();
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}
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#define IMPLEMENTATION_NAME "VCLCanvas.CanvasBitmap"
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#define SERVICE_NAME "com.sun.star.rendering.CanvasBitmap"
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::rtl::OUString SAL_CALL CanvasBitmap::getImplementationName( ) throw (uno::RuntimeException)
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{
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return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( IMPLEMENTATION_NAME ) );
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}
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sal_Bool SAL_CALL CanvasBitmap::supportsService( const ::rtl::OUString& ServiceName ) throw (uno::RuntimeException)
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{
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return ServiceName.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM ( SERVICE_NAME ) );
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}
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uno::Sequence< ::rtl::OUString > SAL_CALL CanvasBitmap::getSupportedServiceNames( ) throw (uno::RuntimeException)
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{
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uno::Sequence< ::rtl::OUString > aRet(1);
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aRet[0] = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM ( SERVICE_NAME ) );
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return aRet;
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}
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BitmapEx CanvasBitmap::getBitmap() const
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{
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tools::LocalGuard aGuard;
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// TODO(T3): Rework to use shared_ptr all over the place for
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// BmpEx. This is highly un-threadsafe
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return maCanvasHelper.getBitmap();
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}
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bool CanvasBitmap::repaint( const GraphicObjectSharedPtr& rGrf,
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const rendering::ViewState& viewState,
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const rendering::RenderState& renderState,
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const ::Point& rPt,
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const ::Size& rSz,
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const GraphicAttr& rAttr ) const
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{
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tools::LocalGuard aGuard;
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mbSurfaceDirty = true;
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return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr );
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}
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}
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