Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 237 insertions, 0 deletions

diff --git a/include/basegfx/tuple/b3dtuple.hxx b/include/basegfx/tuple/b3dtuple.hxx
new file mode 100644
index 000000000..7ac6a774b
--- /dev/null
+++ b/include/basegfx/tuple/b3dtuple.hxx
@@ -0,0 +1,237 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   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 .
+ */
+
+#pragma once
+
+#include <sal/types.h>
+#include <basegfx/numeric/ftools.hxx>
+#include <basegfx/basegfxdllapi.h>
+#include <basegfx/tuple/Tuple3D.hxx>
+
+namespace basegfx
+{
+    class B3ITuple;
+
+    /** Base class for all Points/Vectors with three double values
+
+        This class provides all methods common to Point
+        and Vector classes which are derived from here.
+
+        @derive Use this class to implement Points or Vectors
+        which are based on three double values
+    */
+    class SAL_WARN_UNUSED BASEGFX_DLLPUBLIC B3DTuple : public Tuple3D<double>
+    {
+    public:
+        /** Create a 3D Tuple
+
+            The tuple is initialized to (0.0, 0.0, 0.0)
+        */
+        B3DTuple()
+            : Tuple3D(0.0, 0.0, 0.0)
+        {}
+
+        /** Create a 3D Tuple
+
+            @param fX
+            This parameter is used to initialize the X-coordinate
+            of the 3D Tuple.
+
+            @param fY
+            This parameter is used to initialize the Y-coordinate
+            of the 3D Tuple.
+
+            @param fZ
+            This parameter is used to initialize the Z-coordinate
+            of the 3D Tuple.
+        */
+        B3DTuple(double fX, double fY, double fZ)
+            : Tuple3D(fX, fY, fZ)
+        {}
+
+        /// Array-access to 3D Tuple
+        const double& operator[] (int nPos) const
+        {
+            // Here, normally two if(...)'s should be used. In the assumption that
+            // both double members can be accessed as an array a shortcut is used here.
+            // if(0 == nPos) return mfX; if(1 == nPos) return mfY; return mfZ;
+            return *((&mfX) + nPos);
+        }
+
+        /// Array-access to 3D Tuple
+        double& operator[] (int nPos)
+        {
+            // Here, normally two if(...)'s should be used. In the assumption that
+            // both double members can be accessed as an array a shortcut is used here.
+            // if(0 == nPos) return mfX; if(1 == nPos) return mfY; return mfZ;
+            return *((&mfX) + nPos);
+        }
+
+        // comparators with tolerance
+
+
+        bool equalZero() const
+        {
+            return (this == &getEmptyTuple() ||
+                (::basegfx::fTools::equalZero(mfX)
+                && ::basegfx::fTools::equalZero(mfY)
+                && ::basegfx::fTools::equalZero(mfZ)));
+        }
+
+        bool equal(const B3DTuple& rTup) const
+        {
+            return (
+                this == &rTup ||
+                (::basegfx::fTools::equal(mfX, rTup.mfX) &&
+                ::basegfx::fTools::equal(mfY, rTup.mfY) &&
+                ::basegfx::fTools::equal(mfZ, rTup.mfZ)));
+        }
+
+        // operators
+
+        B3DTuple operator-(void) const
+        {
+            return B3DTuple(-mfX, -mfY, -mfZ);
+        }
+
+        bool operator==(const B3DTuple& rTup) const
+        {
+            return mfX == rTup.mfX && mfY == rTup.mfY && mfZ == rTup.mfZ;
+        }
+
+        bool operator!=(const B3DTuple& rTup) const { return !operator==(rTup); }
+
+        void correctValues(const double fCompareValue = 0.0)
+        {
+            if(0.0 == fCompareValue)
+            {
+                if(::basegfx::fTools::equalZero(mfX))
+                {
+                    mfX = 0.0;
+                }
+
+                if(::basegfx::fTools::equalZero(mfY))
+                {
+                    mfY = 0.0;
+                }
+
+                if(::basegfx::fTools::equalZero(mfZ))
+                {
+                    mfZ = 0.0;
+                }
+            }
+            else
+            {
+                if(::basegfx::fTools::equal(mfX, fCompareValue))
+                {
+                    mfX = fCompareValue;
+                }
+
+                if(::basegfx::fTools::equal(mfY, fCompareValue))
+                {
+                    mfY = fCompareValue;
+                }
+
+                if(::basegfx::fTools::equal(mfZ, fCompareValue))
+                {
+                    mfZ = fCompareValue;
+                }
+            }
+        }
+
+        static const B3DTuple& getEmptyTuple();
+    };
+
+    // external operators
+
+
+    inline B3DTuple interpolate(const B3DTuple& rOld1, const B3DTuple& rOld2, double t)
+    {
+        if(rOld1 == rOld2)
+        {
+            return rOld1;
+        }
+        else if(0.0 >= t)
+        {
+            return rOld1;
+        }
+        else if(1.0 <= t)
+        {
+            return rOld2;
+        }
+        else
+        {
+            return B3DTuple(
+                ((rOld2.getX() - rOld1.getX()) * t) + rOld1.getX(),
+                ((rOld2.getY() - rOld1.getY()) * t) + rOld1.getY(),
+                ((rOld2.getZ() - rOld1.getZ()) * t) + rOld1.getZ());
+        }
+    }
+
+    inline B3DTuple average(const B3DTuple& rOld1, const B3DTuple& rOld2)
+    {
+        return B3DTuple(
+            rtl_math_approxEqual(rOld1.getX(), rOld2.getX()) ? rOld1.getX() : (rOld1.getX() + rOld2.getX()) * 0.5,
+            rtl_math_approxEqual(rOld1.getY(), rOld2.getY()) ? rOld1.getY() : (rOld1.getY() + rOld2.getY()) * 0.5,
+            rtl_math_approxEqual(rOld1.getZ(), rOld2.getZ()) ? rOld1.getZ() : (rOld1.getZ() + rOld2.getZ()) * 0.5);
+    }
+
+    inline B3DTuple operator+(const B3DTuple& rTupA, const B3DTuple& rTupB)
+    {
+        B3DTuple aSum(rTupA);
+        aSum += rTupB;
+        return aSum;
+    }
+
+    inline B3DTuple operator-(const B3DTuple& rTupA, const B3DTuple& rTupB)
+    {
+        B3DTuple aSub(rTupA);
+        aSub -= rTupB;
+        return aSub;
+    }
+
+    inline B3DTuple operator*(const B3DTuple& rTupA, const B3DTuple& rTupB)
+    {
+        B3DTuple aMul(rTupA);
+        aMul *= rTupB;
+        return aMul;
+    }
+
+    inline B3DTuple operator*(const B3DTuple& rTup, double t)
+    {
+        B3DTuple aNew(rTup);
+        aNew *= t;
+        return aNew;
+    }
+
+    inline B3DTuple operator/(const B3DTuple& rTup, double t)
+    {
+        B3DTuple aNew(rTup);
+        aNew /= t;
+        return aNew;
+    }
+
+    /** Round double to nearest integer for 3D tuple
+
+        @return the nearest integer for this tuple
+    */
+    BASEGFX_DLLPUBLIC B3ITuple fround(const B3DTuple& rTup);
+} // end of namespace basegfx
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */