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Diffstat (limited to 'canvas/source/vcl/cachedbitmap.cxx')
-rw-r--r-- | canvas/source/vcl/cachedbitmap.cxx | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/canvas/source/vcl/cachedbitmap.cxx b/canvas/source/vcl/cachedbitmap.cxx new file mode 100644 index 000000000..404b88884 --- /dev/null +++ b/canvas/source/vcl/cachedbitmap.cxx @@ -0,0 +1,92 @@ +/* -*- 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 <com/sun/star/rendering/XCanvas.hpp> +#include <com/sun/star/rendering/RepaintResult.hpp> +#include <tools/diagnose_ex.h> + +#include "cachedbitmap.hxx" +#include "repainttarget.hxx" + + +using namespace ::com::sun::star; + +namespace vclcanvas +{ + CachedBitmap::CachedBitmap( const GraphicObjectSharedPtr& rGraphicObject, + const ::Point& rPoint, + const ::Size& rSize, + const GraphicAttr& rAttr, + const rendering::ViewState& rUsedViewState, + const rendering::RenderState& rUsedRenderState, + const uno::Reference< rendering::XCanvas >& rTarget ) : + CachedPrimitiveBase( rUsedViewState, rTarget ), + mpGraphicObject( rGraphicObject ), + maRenderState(rUsedRenderState), + maPoint( rPoint ), + maSize( rSize ), + maAttributes( rAttr ) + { + } + + void SAL_CALL CachedBitmap::disposing() + { + ::osl::MutexGuard aGuard( m_aMutex ); + + mpGraphicObject.reset(); + + CachedPrimitiveBase::disposing(); + } + + ::sal_Int8 CachedBitmap::doRedraw( const rendering::ViewState& rNewState, + const rendering::ViewState& rOldState, + const uno::Reference< rendering::XCanvas >& rTargetCanvas, + bool bSameViewTransform ) + { + ENSURE_OR_THROW( bSameViewTransform, + "CachedBitmap::doRedraw(): base called with changed view transform " + "(told otherwise during construction)" ); + + // TODO(P1): Could adapt to modified clips as well + if( rNewState.Clip != rOldState.Clip ) + return rendering::RepaintResult::FAILED; + + RepaintTarget* pTarget = dynamic_cast< RepaintTarget* >(rTargetCanvas.get()); + + ENSURE_OR_THROW( pTarget, + "CachedBitmap::redraw(): cannot cast target to RepaintTarget" ); + + if( !pTarget->repaint( mpGraphicObject, + rNewState, + maRenderState, + maPoint, + maSize, + maAttributes ) ) + { + // target failed to repaint + return rendering::RepaintResult::FAILED; + } + + return rendering::RepaintResult::REDRAWN; + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |