| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #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> |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // predeclarations |
| |
| class VirtualDevice; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| 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); |
| |
| public: |
| OverlayManagerBuffered( |
| OutputDevice& rOutputDevice, |
| bool bRefreshWithPreRendering = false); |
| virtual ~OverlayManagerBuffered(); |
| |
| // 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; } |
| void SetRefreshWithPreRendering(bool bNew); |
| }; |
| } // end of namespace overlay |
| } // end of namespace sdr |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| #endif //_SDR_OVERLAY_OVERLAYMANAGERBUFFERED_HXX |
| |
| // eof |
