b2drange.cxx

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#include <basegfx/range/b2drange.hxx>
#include <basegfx/range/b2irange.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
 
namespace basegfx
{
    B2DRange::B2DRange(const B2IRange& rRange)
    {
        if (!rRange.isEmpty())
        {
            maRangeX = basegfx::BasicRange<ValueType, TraitsType>(rRange.getMinX());
            maRangeY = basegfx::BasicRange<ValueType, TraitsType>(rRange.getMinY());
 
            maRangeX.expand(rRange.getMaxX());
            maRangeY.expand(rRange.getMaxY());
        }
    }
 
    void B2DRange::transform(const B2DHomMatrix& rMatrix)
    {
        if(!isEmpty() && !rMatrix.isIdentity())
        {
            const B2DRange aSource(*this);
            reset();
            expand(rMatrix * B2DPoint(aSource.getMinX(), aSource.getMinY()));
            expand(rMatrix * B2DPoint(aSource.getMaxX(), aSource.getMinY()));
            expand(rMatrix * B2DPoint(aSource.getMinX(), aSource.getMaxY()));
            expand(rMatrix * B2DPoint(aSource.getMaxX(), aSource.getMaxY()));
        }
    }
 
    B2DRange& B2DRange::operator*=(const basegfx::B2DHomMatrix& rMatrix)
    {
        transform(rMatrix);
        return *this;
    }
 
    const B2DRange& B2DRange::getUnitB2DRange()
    {
        static const B2DRange aUnitB2DRange(0.0, 0.0, 1.0, 1.0);
 
        return aUnitB2DRange;
    }
 
    B2IRange fround(const B2DRange& rRange)
    {
        return rRange.isEmpty() ?
            B2IRange() :
            B2IRange(fround(rRange.getMinimum()),
                     fround(rRange.getMaximum()));
    }
 
    B2DRange operator*( const ::basegfx::B2DHomMatrix& rMat, const B2DRange& rB2DRange )
    {
        B2DRange aRes( rB2DRange );
        aRes *= rMat;
        return aRes;
    }
 
} // end of namespace basegfx
 
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