xref: /AOO41X/main/svx/source/sdr/contact/viewcontactofvirtobj.cxx (revision f6e50924346d0b8c0b07c91832a97665dd718b0c)
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2  *
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11  *   http://www.apache.org/licenses/LICENSE-2.0
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15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
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20  *************************************************************/
21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_svx.hxx"
26 #include <svx/sdr/contact/viewcontactofvirtobj.hxx>
27 #include <svx/svdovirt.hxx>
28 #include <svx/sdr/contact/displayinfo.hxx>
29 #include <basegfx/matrix/b2dhommatrix.hxx>
30 #include <drawinglayer/primitive2d/transformprimitive2d.hxx>
31 #include <vcl/outdev.hxx>
32 #include <drawinglayer/primitive2d/sdrdecompositiontools2d.hxx>
33 
34 //////////////////////////////////////////////////////////////////////////////
35 
36 namespace sdr
37 {
38     namespace contact
39     {
GetVirtObj() const40         SdrVirtObj& ViewContactOfVirtObj::GetVirtObj() const
41         {
42             return (SdrVirtObj&)mrObject;
43         }
44 
ViewContactOfVirtObj(SdrVirtObj & rObj)45         ViewContactOfVirtObj::ViewContactOfVirtObj(SdrVirtObj& rObj)
46         :   ViewContactOfSdrObj(rObj)
47         {
48         }
49 
~ViewContactOfVirtObj()50         ViewContactOfVirtObj::~ViewContactOfVirtObj()
51         {
52         }
53 
54         // Access to possible sub-hierarchy
GetObjectCount() const55         sal_uInt32 ViewContactOfVirtObj::GetObjectCount() const
56         {
57             // Here, SdrVirtObj's need to return 0L to show that they have no
58             // sub-hierarchy, even when they are group objects. This is necessary
59             // to avoid that the same VOCs will be added to the draw hierarchy
60             // twice which leads to problems.
61             //
62             // This solution is only a first solution to get things running. Later
63             // this needs to be replaced with creating real VOCs for the objects
64             // referenced by virtual objects to avoid the 'trick' of setting the
65             // offset for painting at the destination OutputDevive.
66             //
67             // As can be seen, with primitives, the problem will be solved using
68             // a transformPrimitive, so this solution can stay with primitives.
69             return 0L;
70         }
71 
createViewIndependentPrimitive2DSequence() const72         drawinglayer::primitive2d::Primitive2DSequence ViewContactOfVirtObj::createViewIndependentPrimitive2DSequence() const
73         {
74             // create displacement transformation if we have content
75             basegfx::B2DHomMatrix aObjectMatrix;
76             Point aAnchor(GetVirtObj().GetAnchorPos());
77 
78             if(aAnchor.X() || aAnchor.Y())
79             {
80                 aObjectMatrix.set(0, 2, aAnchor.X());
81                 aObjectMatrix.set(1, 2, aAnchor.Y());
82             }
83 
84             // use method from referenced object to get the Primitive2DSequence
85             const drawinglayer::primitive2d::Primitive2DSequence xSequenceVirtual(
86                 GetVirtObj().GetReferencedObj().GetViewContact().getViewIndependentPrimitive2DSequence());
87 
88             if(xSequenceVirtual.hasElements())
89             {
90                 // create transform primitive
91                 const drawinglayer::primitive2d::Primitive2DReference xReference(
92                     new drawinglayer::primitive2d::TransformPrimitive2D(
93                         aObjectMatrix,
94                         xSequenceVirtual));
95 
96                 return drawinglayer::primitive2d::Primitive2DSequence(&xReference, 1);
97             }
98             else
99             {
100                 // always append an invisible outline for the cases where no visible content exists
101                 const drawinglayer::primitive2d::Primitive2DReference xReference(
102                     drawinglayer::primitive2d::createHiddenGeometryPrimitives2D(
103                         false, aObjectMatrix));
104 
105                 return drawinglayer::primitive2d::Primitive2DSequence(&xReference, 1);
106             }
107         }
108     } // end of namespace contact
109 } // end of namespace sdr
110 
111 //////////////////////////////////////////////////////////////////////////////
112 // eof
113