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Canvas: Provide sane default bounding box (For Image & Text)

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This commit is contained in:
Thomas Geymayer 2013-01-09 12:11:19 +01:00
parent 8a9693a28e
commit ea8023e51f
1 changed files with 9 additions and 1 deletions
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10
simgear/canvas/elements/CanvasElement.cxx
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@ -405,7 +405,15 @@ namespace canvas
//----------------------------------------------------------------------------
osg::BoundingBox Element::getTransformedBounds(const osg::Matrix& m) const
{
return osg::BoundingBox();
if( !_drawable )
return osg::BoundingBox();
osg::BoundingBox transformed;
const osg::BoundingBox& bb = _drawable->getBound();
for(int i = 0; i < 4; ++i)
transformed.expandBy( m * bb.corner(i) );
return transformed;
}
//----------------------------------------------------------------------------