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Diffstat (limited to 'include/svx/sdr/overlay/overlaymanagerbuffered.hxx')
| -rw-r--r-- | include/svx/sdr/overlay/overlaymanagerbuffered.hxx | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/include/svx/sdr/overlay/overlaymanagerbuffered.hxx b/include/svx/sdr/overlay/overlaymanagerbuffered.hxx new file mode 100644 index 000000000000..7f6dbe05d9e6 --- /dev/null +++ b/include/svx/sdr/overlay/overlaymanagerbuffered.hxx @@ -0,0 +1,98 @@ +/* -*- 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 _SDR_OVERLAY_OVERLAYMANAGERBUFFERED_HXX +#define _SDR_OVERLAY_OVERLAYMANAGERBUFFERED_HXX + +#include <svx/sdr/overlay/overlaymanager.hxx> +#include <basegfx/range/b2irange.hxx> +#include <vcl/virdev.hxx> + +////////////////////////////////////////////////////////////////////////////// + +namespace sdr +{ + namespace overlay + { + class OverlayManagerBuffered : public OverlayManager + { + protected: + // The VirtualDevice for draw window content buffering, this + // is the view content without overlay + VirtualDevice maBufferDevice; + + // #i73602# The VirtualDevice for OverlayPaint buffering. This + // is an extra device to avoid flickering of overlay paints + VirtualDevice maOutputBufferDevice; + + // Timer for buffering + Timer maBufferTimer; + + // Range for buffering (in pixel to be independent from mapMode) + basegfx::B2IRange maBufferRememberedRangePixel; + + // bitfield + // Flag to decide if PreRendering shall be used for overlay refreshes. + // Default is false. + unsigned mbRefreshWithPreRendering : 1; + + // link for timer + DECL_LINK(ImpBufferTimerHandler, AutoTimer*); + + // Internal methods for buffering + void ImpPrepareBufferDevice(); + void ImpRestoreBackground() const ; + void ImpRestoreBackground(const Region& rRegionPixel) const; + void ImpSaveBackground(const Region& rRegion, OutputDevice* pPreRenderDevice = 0L); + + OverlayManagerBuffered( + OutputDevice& rOutputDevice, + bool bRefreshWithPreRendering = false); + virtual ~OverlayManagerBuffered(); + + public: + static rtl::Reference<OverlayManager> create(OutputDevice& rOutputDevice, + bool bRefreshWithPreRendering = false); + + // complete redraw + virtual void completeRedraw(const Region& rRegion, OutputDevice* pPreRenderDevice = 0L) const; + + // flush. Do buffered updates. + virtual void flush(); + + // #i68597# part of content gets copied, react on it + virtual void copyArea(const Point& rDestPt, const Point& rSrcPt, const Size& rSrcSize); + + // restore part of background. Implemented form buffered versions only. + virtual void restoreBackground(const Region& rRegion) const; + + // invalidate the given range at local OutputDevice + virtual void invalidateRange(const basegfx::B2DRange& rRange); + + // access to RefreshWithPreRendering Flag + bool DoRefreshWithPreRendering() const { return mbRefreshWithPreRendering; } + }; + } // end of namespace overlay +} // end of namespace sdr + +////////////////////////////////////////////////////////////////////////////// + +#endif //_SDR_OVERLAY_OVERLAYMANAGERBUFFERED_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |