033aaeec9e
Change-Id: I351a9127fb26369d8f598b6d6519d7e490fa476b Reviewed-on: https://gerrit.libreoffice.org/c/core/+/163190 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
80 lines
3.3 KiB
C++
80 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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#include <drawinglayer/drawinglayerdllapi.h>
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#include <drawinglayer/primitive2d/groupprimitive2d.hxx>
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#include <salhelper/timer.hxx>
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namespace drawinglayer::primitive2d
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{
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/** BufferedDecompositionGroupPrimitive2D class
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Baseclass for all C++ implementations which are derived from GroupPrimitive2D
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which want to buffer the decomposition result
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For discussion please refer to BufferedDecompositionPrimitive2D, this is the same
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but for GroupPrimitive2D which want to buffer their decomposition
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*/
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class UNLESS_MERGELIBS(DRAWINGLAYER_DLLPUBLIC) BufferedDecompositionGroupPrimitive2D
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: public GroupPrimitive2D
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{
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private:
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// exclusive helper for Primitive2DFlusher
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friend void flushBufferedDecomposition(BufferedDecompositionGroupPrimitive2D&);
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/// a sequence used for buffering the last create2DDecomposition() result
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Primitive2DContainer maBuffered2DDecomposition;
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/// offer callback mechanism to flush buffered content timer-based
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::rtl::Reference<::salhelper::Timer> maCallbackTimer;
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mutable std::mutex maCallbackLock;
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sal_uInt16 maCallbackSeconds;
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protected:
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/// identical to BufferedDecompositionPrimitive2D, see there please
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const Primitive2DContainer& getBuffered2DDecomposition() const;
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void setBuffered2DDecomposition(Primitive2DContainer&& rNew);
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/// method which is to be used to implement the local decomposition of a 2D group primitive.
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virtual void
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create2DDecomposition(Primitive2DContainer& rContainer,
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const geometry::ViewInformation2D& rViewInformation) const = 0;
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// when changing from null (which is inactive) to a count of seconds, the
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// callback mechanism to flush buffered content timer-based will be activated.
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// it is protected since the idea is that this gets called in the constructor
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// of derived classes.
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void setCallbackSeconds(sal_uInt16 nNew) { maCallbackSeconds = nNew; }
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public:
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/// constructor/destructor. For GroupPrimitive2D we need the child parameter, too.
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BufferedDecompositionGroupPrimitive2D(Primitive2DContainer&& aChildren);
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virtual ~BufferedDecompositionGroupPrimitive2D();
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/// identical to BufferedDecompositionPrimitive2D, see there please
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virtual void
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get2DDecomposition(Primitive2DDecompositionVisitor& rVisitor,
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const geometry::ViewInformation2D& rViewInformation) const override;
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};
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} // end of namespace drawinglayer::primitive2d
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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