76 lines
3.1 KiB
C++
76 lines
3.1 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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#ifndef INCLUDED_SVX_INC_SDR_OVERLAY_OVERLAYMANAGERBUFFERED_HXX
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#define INCLUDED_SVX_INC_SDR_OVERLAY_OVERLAYMANAGERBUFFERED_HXX
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#include <svx/sdr/overlay/overlaymanager.hxx>
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#include <basegfx/range/b2irange.hxx>
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#include <vcl/virdev.hxx>
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#include <vcl/idle.hxx>
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namespace sdr::overlay
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{
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class OverlayManagerBuffered final : public OverlayManager
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{
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// The VirtualDevice for draw window content buffering, this
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// is the view content without overlay
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ScopedVclPtr<VirtualDevice> mpBufferDevice;
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// #i73602# The VirtualDevice for OverlayPaint buffering. This
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// is an extra device to avoid flickering of overlay paints
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ScopedVclPtr<VirtualDevice> mpOutputBufferDevice;
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// Idle for buffering
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Idle maBufferIdle;
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// Range for buffering (in pixel to be independent from mapMode)
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basegfx::B2IRange maBufferRememberedRangePixel;
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// link for timer
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DECL_LINK(ImpBufferTimerHandler, Timer*, void);
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// Internal methods for buffering
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void ImpPrepareBufferDevice();
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void ImpRestoreBackground() const ;
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void ImpRestoreBackground(const vcl::Region& rRegionPixel) const;
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void ImpSaveBackground(const vcl::Region& rRegion, OutputDevice* pPreRenderDevice);
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OverlayManagerBuffered(OutputDevice& rOutputDevice);
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virtual ~OverlayManagerBuffered() override;
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public:
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static rtl::Reference<OverlayManager> create(OutputDevice& rOutputDevice);
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// complete redraw
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virtual void completeRedraw(const vcl::Region& rRegion, OutputDevice* pPreRenderDevice = nullptr) const override;
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// flush. Do buffered updates.
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virtual void flush() override;
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// invalidate the given range at local OutputDevice
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virtual void invalidateRange(const basegfx::B2DRange& rRange) override;
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};
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} // end of namespace sdr::overlay
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#endif // INCLUDED_SVX_INC_SDR_OVERLAY_OVERLAYMANAGERBUFFERED_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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