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