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21 
22 
23 
24 #ifndef SD_SLIDESORTER_VIEW_LAYERED_DEVICE_HXX
25 #define SD_SLIDESORTER_VIEW_LAYERED_DEVICE_HXX
26 
27 #include "view/SlsILayerPainter.hxx"
28 #include "SlideSorter.hxx"
29 
30 #include <tools/gen.hxx>
31 #include <vcl/region.hxx>
32 #include <vcl/virdev.hxx>
33 
34 #include <boost/noncopyable.hpp>
35 #include <boost/scoped_ptr.hpp>
36 #include <boost/shared_ptr.hpp>
37 #include <boost/enable_shared_from_this.hpp>
38 #include <vector>
39 
40 class Window;
41 
42 namespace sd { namespace slidesorter { namespace view {
43 
44 /** A simple wrapper around an OutputDevice that provides support for
45     independent layers and buffering.
46     Each layer may contain any number of painters.
47 */
48 class LayeredDevice
49     : public ::boost::enable_shared_from_this<LayeredDevice>
50 
51 {
52 public:
53     LayeredDevice (const SharedSdWindow& rpTargetWindow);
54     ~LayeredDevice (void);
55 
56     void Invalidate (
57         const Rectangle& rInvalidationBox,
58         const sal_Int32 nLayer);
59     void InvalidateAllLayers (
60         const Rectangle& rInvalidationBox);
61     void InvalidateAllLayers (
62         const Region& rInvalidationRegion);
63 
64     void RegisterPainter (
65         const SharedILayerPainter& rPainter,
66         const sal_Int32 nLayer);
67 
68     void RemovePainter (
69         const SharedILayerPainter& rPainter,
70         const sal_Int32 nLayer);
71 
72     bool HasPainter (const sal_Int32 nLayer);
73 
74     bool HandleMapModeChange (void);
75     void Repaint (const Region& rRepaintRegion);
76 
77     void Resize (void);
78 
79     void Dispose (void);
80 
81 private:
82     SharedSdWindow mpTargetWindow;
83     class LayerContainer;
84     ::boost::scoped_ptr<LayerContainer> mpLayers;
85     ::boost::scoped_ptr<VirtualDevice> mpBackBuffer;
86     MapMode maSavedMapMode;
87 
88     void RepaintRectangle (const Rectangle& rRepaintRectangle);
89 };
90 
91 
92 
93 } } } // end of namespace ::sd::slidesorter::view
94 
95 #endif
96