xref: /AOO41X/main/drawinglayer/source/primitive2d/discretebitmapprimitive2d.cxx (revision 1ecadb572e7010ff3b3382ad9bf179dbc6efadbb)
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27 
28 // MARKER(update_precomp.py): autogen include statement, do not remove
29 #include "precompiled_drawinglayer.hxx"
30 
31 #include <drawinglayer/primitive2d/discretebitmapprimitive2d.hxx>
32 #include <drawinglayer/primitive2d/bitmapprimitive2d.hxx>
33 #include <drawinglayer/primitive2d/drawinglayer_primitivetypes2d.hxx>
34 
35 //////////////////////////////////////////////////////////////////////////////
36 
37 namespace drawinglayer
38 {
39 	namespace primitive2d
40 	{
41 		Primitive2DSequence DiscreteBitmapPrimitive2D::create2DDecomposition(const geometry::ViewInformation2D& /*rViewInformation*/) const
42 		{
43 			// use getViewTransformation() and getObjectTransformation() from
44 			// ObjectAndViewTransformationDependentPrimitive2D to create a BitmapPrimitive2D
45 			// with the correct mapping
46 			Primitive2DSequence xRetval;
47 
48 			if(!getBitmapEx().IsEmpty())
49 			{
50 				// get discrete size
51 				const Size& rSizePixel = getBitmapEx().GetSizePixel();
52 				const basegfx::B2DVector aDiscreteSize(rSizePixel.Width(), rSizePixel.Height());
53 
54 				// get inverse ViewTransformation
55 				basegfx::B2DHomMatrix aInverseViewTransformation(getViewTransformation());
56 				aInverseViewTransformation.invert();
57 
58 				// get size and position in world coordinates
59 				const basegfx::B2DVector aWorldSize(aInverseViewTransformation * aDiscreteSize);
60 				const basegfx::B2DPoint  aWorldTopLeft(getObjectTransformation() * getTopLeft());
61 
62 				// build object matrix in world coordinates so that the top-left
63 				// position remains, but eventual transformations (e.g. rotations)
64 				// in the ObjectToView stack remain and get correctly applied
65 				basegfx::B2DHomMatrix aObjectTransform;
66 
67 				aObjectTransform.set(0, 0, aWorldSize.getX());
68 				aObjectTransform.set(1, 1, aWorldSize.getY());
69 				aObjectTransform.set(0, 2, aWorldTopLeft.getX());
70 				aObjectTransform.set(1, 2, aWorldTopLeft.getY());
71 
72 				// get inverse ObjectTransformation
73 				basegfx::B2DHomMatrix aInverseObjectTransformation(getObjectTransformation());
74 				aInverseObjectTransformation.invert();
75 
76 				// transform to object coordinate system
77 				aObjectTransform = aInverseObjectTransformation * aObjectTransform;
78 
79 				// create BitmapPrimitive2D with now object-local coordinate data
80 				const Primitive2DReference xRef(new BitmapPrimitive2D(getBitmapEx(), aObjectTransform));
81 				xRetval = Primitive2DSequence(&xRef, 1);
82 			}
83 
84 			return xRetval;
85 		}
86 
87 		DiscreteBitmapPrimitive2D::DiscreteBitmapPrimitive2D(
88 			const BitmapEx& rBitmapEx,
89 			const basegfx::B2DPoint& rTopLeft)
90 		:	ObjectAndViewTransformationDependentPrimitive2D(),
91 			maBitmapEx(rBitmapEx),
92 			maTopLeft(rTopLeft)
93 		{
94 		}
95 
96 		bool DiscreteBitmapPrimitive2D::operator==(const BasePrimitive2D& rPrimitive) const
97 		{
98 			if(ObjectAndViewTransformationDependentPrimitive2D::operator==(rPrimitive))
99 			{
100 				const DiscreteBitmapPrimitive2D& rCompare = (DiscreteBitmapPrimitive2D&)rPrimitive;
101 
102 				return (getBitmapEx() == rCompare.getBitmapEx()
103 					&& getTopLeft() == rCompare.getTopLeft());
104 			}
105 
106 			return false;
107 		}
108 
109 		// provide unique ID
110 		ImplPrimitrive2DIDBlock(DiscreteBitmapPrimitive2D, PRIMITIVE2D_ID_DISCRETEBITMAPPRIMITIVE2D)
111 
112 	} // end of namespace primitive2d
113 } // end of namespace drawinglayer
114 
115 //////////////////////////////////////////////////////////////////////////////
116 // eof
117