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27 
28 #ifndef _DXCANVAS_BITMAPCANVASHELPER_HXX_
29 #define _DXCANVAS_BITMAPCANVASHELPER_HXX_
30 
31 #include <com/sun/star/rendering/XCanvas.hpp>
32 
33 #include <basegfx/vector/b2isize.hxx>
34 #include <basegfx/vector/b2dsize.hxx>
35 
36 #include "dx_graphicsprovider.hxx"
37 #include "dx_ibitmap.hxx"
38 #include "dx_gdiplususer.hxx"
39 #include "dx_impltools.hxx"
40 #include "dx_canvashelper.hxx"
41 
42 #include <boost/utility.hpp>
43 
44 
45 namespace dxcanvas
46 {
47     /** Helper class for basic canvas functionality. Also offers
48         optional backbuffer painting, when providing it with a second
49         HDC to render into.
50      */
51     class BitmapCanvasHelper : public CanvasHelper
52     {
53     public:
54         BitmapCanvasHelper();
55 
56         /// Release all references
57         void disposing();
58 
59         /** Set the target for rendering operations
60 
61             @param rTarget
62             Render target
63          */
64         void setTarget( const IBitmapSharedPtr& rTarget );
65 
66         /** Set the target for rendering operations
67 
68             @param rTarget
69             Render target
70 
71             @param rOutputOffset
72             Output offset in pixel
73          */
74         void setTarget( const IBitmapSharedPtr&   rTarget,
75                         const ::basegfx::B2ISize& rOutputOffset );
76 
77 
78         // CanvasHelper functionality is implementation-inherited. yuck.
79         // =============================================================
80         void clear();
81 
82         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCachedPrimitive >
83         	drawTextLayout( const ::com::sun::star::rendering::XCanvas* 	pCanvas,
84                             const ::com::sun::star::uno::Reference<
85                             	::com::sun::star::rendering::XTextLayout >& layoutetText,
86                             const ::com::sun::star::rendering::ViewState& 	viewState,
87                             const ::com::sun::star::rendering::RenderState& renderState );
88 
89         // BitmapCanvasHelper functionality
90         // ================================
91 
92         void copyRect( const ::com::sun::star::rendering::XCanvas* 			pCanvas,
93                        const ::com::sun::star::uno::Reference<
94                        		::com::sun::star::rendering::XBitmapCanvas >& 	sourceCanvas,
95                        const ::com::sun::star::geometry::RealRectangle2D& 	sourceRect,
96                        const ::com::sun::star::rendering::ViewState& 		sourceViewState,
97                        const ::com::sun::star::rendering::RenderState& 		sourceRenderState,
98                        const ::com::sun::star::geometry::RealRectangle2D& 	destRect,
99                        const ::com::sun::star::rendering::ViewState& 		destViewState,
100                        const ::com::sun::star::rendering::RenderState& 		destRenderState );
101 
102         ::com::sun::star::geometry::IntegerSize2D getSize();
103 
104         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmap >
105         	getScaledBitmap( const ::com::sun::star::geometry::RealSize2D& 	newSize,
106                              sal_Bool 										beFast );
107 
108         ::com::sun::star::uno::Sequence< sal_Int8 >
109 	        getData( ::com::sun::star::rendering::IntegerBitmapLayout& 		bitmapLayout,
110                      const ::com::sun::star::geometry::IntegerRectangle2D&  rect );
111 
112         void setData( const ::com::sun::star::uno::Sequence< sal_Int8 >&         data,
113                       const ::com::sun::star::rendering::IntegerBitmapLayout&    bitmapLayout,
114                       const ::com::sun::star::geometry::IntegerRectangle2D&      rect );
115 
116         void setPixel( const ::com::sun::star::uno::Sequence< sal_Int8 >&        color,
117                        const ::com::sun::star::rendering::IntegerBitmapLayout&   bitmapLayout,
118                        const ::com::sun::star::geometry::IntegerPoint2D&         pos );
119 
120         ::com::sun::star::uno::Sequence< sal_Int8 >
121 	        getPixel( ::com::sun::star::rendering::IntegerBitmapLayout& bitmapLayout,
122                       const ::com::sun::star::geometry::IntegerPoint2D& pos );
123 
124         ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XBitmapPalette > getPalette();
125 
126         ::com::sun::star::rendering::IntegerBitmapLayout getMemoryLayout();
127 
128         bool hasAlpha() const;
129 
130     protected:
131         /// Render target
132         IBitmapSharedPtr mpTarget;
133     };
134 }
135 
136 #endif /* _DXCANVAS_BITMAPCANVASHELPER_HXX_ */
137