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28 : :
29 : : #ifndef _SDR_OVERLAY_OVERLAYMANAGERBUFFERED_HXX
30 : : #define _SDR_OVERLAY_OVERLAYMANAGERBUFFERED_HXX
31 : :
32 : : #include <svx/sdr/overlay/overlaymanager.hxx>
33 : : #include <basegfx/range/b2irange.hxx>
34 : : #include <vcl/virdev.hxx>
35 : :
36 : : //////////////////////////////////////////////////////////////////////////////
37 : :
38 : : namespace sdr
39 : : {
40 : : namespace overlay
41 : : {
42 : : class OverlayManagerBuffered : public OverlayManager
43 : : {
44 : : protected:
45 : : // The VirtualDevice for draw window content buffering, this
46 : : // is the view content without overlay
47 : : VirtualDevice maBufferDevice;
48 : :
49 : : // #i73602# The VirtualDevice for OverlayPaint buffering. This
50 : : // is an extra device to avoid flickering of overlay paints
51 : : VirtualDevice maOutputBufferDevice;
52 : :
53 : : // Timer for buffering
54 : : Timer maBufferTimer;
55 : :
56 : : // Range for buffering (in pixel to be independent from mapMode)
57 : : basegfx::B2IRange maBufferRememberedRangePixel;
58 : :
59 : : // bitfield
60 : : // Flag to decide if PreRendering shall be used for overlay refreshes.
61 : : // Default is false.
62 : : unsigned mbRefreshWithPreRendering : 1;
63 : :
64 : : // link for timer
65 : : DECL_LINK(ImpBufferTimerHandler, AutoTimer*);
66 : :
67 : : // Internal methods for buffering
68 : : void ImpPrepareBufferDevice();
69 : : void ImpRestoreBackground() const ;
70 : : void ImpRestoreBackground(const Region& rRegionPixel) const;
71 : : void ImpSaveBackground(const Region& rRegion, OutputDevice* pPreRenderDevice = 0L);
72 : :
73 : : // when handing over another OverlayManager at construction, the OverlayObjects
74 : : // will be taken over from it. The new one will have added all OverlayObjects
75 : : // while the handed over one will have none
76 : : OverlayManagerBuffered(
77 : : OutputDevice& rOutputDevice,
78 : : OverlayManager* pOldOverlayManager,
79 : : bool bRefreshWithPreRendering);
80 : : virtual ~OverlayManagerBuffered();
81 : :
82 : : public:
83 : : static rtl::Reference<OverlayManager> create(OutputDevice& rOutputDevice,
84 : : OverlayManager* pOldOverlayManager = 0, bool bRefreshWithPreRendering = false);
85 : :
86 : : // complete redraw
87 : : virtual void completeRedraw(const Region& rRegion, OutputDevice* pPreRenderDevice = 0L) const;
88 : :
89 : : // flush. Do buffered updates.
90 : : virtual void flush();
91 : :
92 : : // #i68597# part of content gets copied, react on it
93 : : virtual void copyArea(const Point& rDestPt, const Point& rSrcPt, const Size& rSrcSize);
94 : :
95 : : // restore part of background. Implemented form buffered versions only.
96 : : virtual void restoreBackground(const Region& rRegion) const;
97 : :
98 : : // invalidate the given range at local OutputDevice
99 : : virtual void invalidateRange(const basegfx::B2DRange& rRange);
100 : :
101 : : // access to RefreshWithPreRendering Flag
102 : 1123 : bool DoRefreshWithPreRendering() const { return mbRefreshWithPreRendering; }
103 : : };
104 : : } // end of namespace overlay
105 : : } // end of namespace sdr
106 : :
107 : : //////////////////////////////////////////////////////////////////////////////
108 : :
109 : : #endif //_SDR_OVERLAY_OVERLAYMANAGERBUFFERED_HXX
110 : :
111 : : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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