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Diffstat (limited to '')
| -rw-r--r-- | canvas/source/vcl/canvasbitmap.cxx | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/canvas/source/vcl/canvasbitmap.cxx b/canvas/source/vcl/canvasbitmap.cxx new file mode 100644 index 000000000..1de5800fa --- /dev/null +++ b/canvas/source/vcl/canvasbitmap.cxx @@ -0,0 +1,125 @@ +/* -*- 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 <sal/config.h> + +#include <cppuhelper/supportsservice.hxx> + +#include "canvasbitmap.hxx" + + +using namespace ::com::sun::star; + + +namespace vclcanvas +{ + // Currently, the only way to generate an XBitmap is from + // XGraphicDevice.getCompatibleBitmap(). Therefore, we don't even + // take a bitmap here, but a VDev directly. + CanvasBitmap::CanvasBitmap( const ::Size& rSize, + bool bAlphaBitmap, + rendering::XGraphicDevice& rDevice, + const OutDevProviderSharedPtr& rOutDevProvider ) + { + // create bitmap for given reference device + // ======================================== + const sal_uInt16 nBitCount( sal_uInt16(24U) ); + const BitmapPalette* pPalette = nullptr; + + Bitmap aBitmap( rSize, nBitCount, pPalette ); + + // only create alpha channel bitmap, if factory requested + // that. Providing alpha-channeled bitmaps by default has, + // especially under VCL, a huge performance penalty (have to + // use alpha VDev, then). + if( bAlphaBitmap ) + { + AlphaMask aAlpha ( rSize ); + + maCanvasHelper.init( BitmapEx( aBitmap, aAlpha ), + rDevice, + rOutDevProvider ); + } + else + { + maCanvasHelper.init( BitmapEx( aBitmap ), + rDevice, + rOutDevProvider ); + } + } + + CanvasBitmap::CanvasBitmap( const BitmapEx& rBitmap, + rendering::XGraphicDevice& rDevice, + const OutDevProviderSharedPtr& rOutDevProvider ) + { + maCanvasHelper.init( rBitmap, rDevice, rOutDevProvider ); + } + + + OUString SAL_CALL CanvasBitmap::getImplementationName( ) + { + return "VCLCanvas.CanvasBitmap"; + } + + sal_Bool SAL_CALL CanvasBitmap::supportsService( const OUString& ServiceName ) + { + return cppu::supportsService( this, ServiceName ); + } + + uno::Sequence< OUString > SAL_CALL CanvasBitmap::getSupportedServiceNames( ) + { + return { "com.sun.star.rendering.CanvasBitmap" }; + } + + BitmapEx CanvasBitmap::getBitmap() const + { + SolarMutexGuard aGuard; + + // TODO(T3): Rework to use shared_ptr all over the place for + // BmpEx. This is highly un-threadsafe + return maCanvasHelper.getBitmap(); + } + + bool CanvasBitmap::repaint( const GraphicObjectSharedPtr& rGrf, + const rendering::ViewState& viewState, + const rendering::RenderState& renderState, + const ::Point& rPt, + const ::Size& rSz, + const GraphicAttr& rAttr ) const + { + SolarMutexGuard aGuard; + + mbSurfaceDirty = true; + + return maCanvasHelper.repaint( rGrf, viewState, renderState, rPt, rSz, rAttr ); + } + + uno::Any SAL_CALL CanvasBitmap::getFastPropertyValue( sal_Int32 nHandle ) + { + if( nHandle == 0 ) { + BitmapEx* pBitmapEx = new BitmapEx( getBitmap() ); + + return uno::Any( reinterpret_cast<sal_Int64>( pBitmapEx ) ); + } + + return uno::Any( sal_Int64(0) ); + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |