basegfx/source/tuple/b2ituple.cxx

   1 /*************************************************************************
   2  *
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * Copyright 2008 by Sun Microsystems, Inc.
   6  *
   7  * OpenOffice.org - a multi-platform office productivity suite
   8  *
   9  * $RCSfile: b2ituple.cxx,v $
  10  * $Revision: 1.6 $
  11  *
  12  * This file is part of OpenOffice.org.
  13  *
  14  * OpenOffice.org is free software: you can redistribute it and/or modify
  15  * it under the terms of the GNU Lesser General Public License version 3
  16  * only, as published by the Free Software Foundation.
  17  *
  18  * OpenOffice.org is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU Lesser General Public License version 3 for more details
  22  * (a copy is included in the LICENSE file that accompanied this code).
  23  *
  24  * You should have received a copy of the GNU Lesser General Public License
  25  * version 3 along with OpenOffice.org.  If not, see
  26  * <http://www.openoffice.org/license.html>
  27  * for a copy of the LGPLv3 License.
  28  *
  29  ************************************************************************/
  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_basegfx.hxx"
  33 #include <basegfx/tuple/b2ituple.hxx>
  34 #include <basegfx/tuple/b2dtuple.hxx>
  35 #include <rtl/instance.hxx>
  36
  37 namespace { struct EmptyTuple : public rtl::Static<basegfx::B2ITuple, EmptyTuple> {}; }
  38
  39 namespace basegfx
  40 {
  41     const B2ITuple& B2ITuple::getEmptyTuple()
  42     {
  43             return EmptyTuple::get();
  44     }
  45
  46     // external operators
  47     //////////////////////////////////////////////////////////////////////////
  48
  49     B2ITuple minimum(const B2ITuple& rTupA, const B2ITuple& rTupB)
  50     {
  51         B2ITuple aMin(
  52             (rTupB.getX() < rTupA.getX()) ? rTupB.getX() : rTupA.getX(),
  53             (rTupB.getY() < rTupA.getY()) ? rTupB.getY() : rTupA.getY());
  54         return aMin;
  55     }
  56
  57     B2ITuple maximum(const B2ITuple& rTupA, const B2ITuple& rTupB)
  58     {
  59         B2ITuple aMax(
  60             (rTupB.getX() > rTupA.getX()) ? rTupB.getX() : rTupA.getX(),
  61             (rTupB.getY() > rTupA.getY()) ? rTupB.getY() : rTupA.getY());
  62         return aMax;
  63     }
  64
  65     B2ITuple absolute(const B2ITuple& rTup)
  66     {
  67         B2ITuple aAbs(
  68             (0 > rTup.getX()) ? -rTup.getX() : rTup.getX(),
  69             (0 > rTup.getY()) ? -rTup.getY() : rTup.getY());
  70         return aAbs;
  71     }
  72
  73     B2DTuple interpolate(const B2ITuple& rOld1, const B2ITuple& rOld2, double t)
  74     {
  75         B2DTuple aInt(
  76             ((rOld2.getX() - rOld1.getX()) * t) + rOld1.getX(),
  77             ((rOld2.getY() - rOld1.getY()) * t) + rOld1.getY());
  78         return aInt;
  79     }
  80
  81     B2DTuple average(const B2ITuple& rOld1, const B2ITuple& rOld2)
  82     {
  83         B2DTuple aAvg(
  84             (rOld1.getX() + rOld2.getX()) * 0.5,
  85             (rOld1.getY() + rOld2.getY()) * 0.5);
  86         return aAvg;
  87     }
  88
  89     B2DTuple average(const B2ITuple& rOld1, const B2ITuple& rOld2, const B2ITuple& rOld3)
  90     {
  91         B2DTuple aAvg(
  92             (rOld1.getX() + rOld2.getX() + rOld3.getX()) * (1.0 / 3.0),
  93             (rOld1.getY() + rOld2.getY() + rOld3.getY()) * (1.0 / 3.0));
  94         return aAvg;
  95     }
  96
  97     B2ITuple operator+(const B2ITuple& rTupA, const B2ITuple& rTupB)
  98     {
  99         B2ITuple aSum(rTupA);
 100         aSum += rTupB;
 101         return aSum;
 102     }
 103
 104     B2ITuple operator-(const B2ITuple& rTupA, const B2ITuple& rTupB)
 105     {
 106         B2ITuple aSub(rTupA);
 107         aSub -= rTupB;
 108         return aSub;
 109     }
 110
 111     B2ITuple operator/(const B2ITuple& rTupA, const B2ITuple& rTupB)
 112     {
 113         B2ITuple aDiv(rTupA);
 114         aDiv /= rTupB;
 115         return aDiv;
 116     }
 117
 118     B2ITuple operator*(const B2ITuple& rTupA, const B2ITuple& rTupB)
 119     {
 120         B2ITuple aMul(rTupA);
 121         aMul *= rTupB;
 122         return aMul;
 123     }
 124
 125     B2ITuple operator*(const B2ITuple& rTup, sal_Int32 t)
 126     {
 127         B2ITuple aNew(rTup);
 128         aNew *= t;
 129         return aNew;
 130     }
 131
 132     B2ITuple operator*(sal_Int32 t, const B2ITuple& rTup)
 133     {
 134         B2ITuple aNew(rTup);
 135         aNew *= t;
 136         return aNew;
 137     }
 138
 139     B2ITuple operator/(const B2ITuple& rTup, sal_Int32 t)
 140     {
 141         B2ITuple aNew(rTup);
 142         aNew /= t;
 143         return aNew;
 144     }
 145
 146     B2ITuple operator/(sal_Int32 t, const B2ITuple& rTup)
 147     {
 148         B2ITuple aNew(t, t);
 149         B2ITuple aTmp(rTup);
 150         aNew /= aTmp;
 151         return aNew;
 152     }
 153
 154 } // end of namespace basegfx
 155
 156 // eof