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 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_basegfx.hxx"
#include <basegfx/tuple/b2ituple.hxx>
#include <basegfx/tuple/b2dtuple.hxx>
#include <rtl/instance.hxx>

namespace { struct EmptyTuple : public rtl::Static<basegfx::B2ITuple, EmptyTuple> {}; }

namespace basegfx
{
    const B2ITuple& B2ITuple::getEmptyTuple()
    {
            return EmptyTuple::get();
    }

	// external operators
	//////////////////////////////////////////////////////////////////////////

	B2ITuple minimum(const B2ITuple& rTupA, const B2ITuple& rTupB) 
	{ 
		B2ITuple aMin(
			(rTupB.getX() < rTupA.getX()) ? rTupB.getX() : rTupA.getX(),
			(rTupB.getY() < rTupA.getY()) ? rTupB.getY() : rTupA.getY()); 
		return aMin;
	}

	B2ITuple maximum(const B2ITuple& rTupA, const B2ITuple& rTupB) 
	{ 
		B2ITuple aMax(
			(rTupB.getX() > rTupA.getX()) ? rTupB.getX() : rTupA.getX(),
			(rTupB.getY() > rTupA.getY()) ? rTupB.getY() : rTupA.getY()); 
		return aMax;
	}

	B2ITuple absolute(const B2ITuple& rTup) 
	{ 
		B2ITuple aAbs(
			(0 > rTup.getX()) ? -rTup.getX() : rTup.getX(),
			(0 > rTup.getY()) ? -rTup.getY() : rTup.getY()); 
		return aAbs;
	}

	B2DTuple interpolate(const B2ITuple& rOld1, const B2ITuple& rOld2, double t) 
	{ 
		B2DTuple aInt(
			((rOld2.getX() - rOld1.getX()) * t) + rOld1.getX(),
			((rOld2.getY() - rOld1.getY()) * t) + rOld1.getY()); 
		return aInt;
	}

	B2DTuple average(const B2ITuple& rOld1, const B2ITuple& rOld2) 
	{ 
		B2DTuple aAvg(
			(rOld1.getX() + rOld2.getX()) * 0.5,
			(rOld1.getY() + rOld2.getY()) * 0.5); 
		return aAvg;
	}
	
	B2DTuple average(const B2ITuple& rOld1, const B2ITuple& rOld2, const B2ITuple& rOld3)
	{ 
		B2DTuple aAvg(
			(rOld1.getX() + rOld2.getX() + rOld3.getX()) * (1.0 / 3.0),
			(rOld1.getY() + rOld2.getY() + rOld3.getY()) * (1.0 / 3.0)); 
		return aAvg;
	}

	B2ITuple operator+(const B2ITuple& rTupA, const B2ITuple& rTupB)
	{ 
		B2ITuple aSum(rTupA); 
		aSum += rTupB; 
		return aSum; 
	}

	B2ITuple operator-(const B2ITuple& rTupA, const B2ITuple& rTupB)
	{ 
		B2ITuple aSub(rTupA); 
		aSub -= rTupB; 
		return aSub; 
	}

	B2ITuple operator/(const B2ITuple& rTupA, const B2ITuple& rTupB)
	{ 
		B2ITuple aDiv(rTupA); 
		aDiv /= rTupB; 
		return aDiv; 
	}

	B2ITuple operator*(const B2ITuple& rTupA, const B2ITuple& rTupB)
	{ 
		B2ITuple aMul(rTupA); 
		aMul *= rTupB; 
		return aMul; 
	}

	B2ITuple operator*(const B2ITuple& rTup, sal_Int32 t)
	{ 
		B2ITuple aNew(rTup); 
		aNew *= t; 
		return aNew; 
	}

	B2ITuple operator*(sal_Int32 t, const B2ITuple& rTup)
	{ 
		B2ITuple aNew(rTup); 
		aNew *= t; 
		return aNew; 
	}

	B2ITuple operator/(const B2ITuple& rTup, sal_Int32 t)
	{ 
		B2ITuple aNew(rTup); 
		aNew /= t; 
		return aNew; 
	}

	B2ITuple operator/(sal_Int32 t, const B2ITuple& rTup)
	{
		B2ITuple aNew(t, t); 
		B2ITuple aTmp(rTup); 
		aNew /= aTmp; 
		return aNew; 
	}

} // end of namespace basegfx

// eof