347112fbd8
Change-Id: I091b68bbeee74452a3d6a03711cfc482b7a78e1d Reviewed-on: https://gerrit.libreoffice.org/c/core/+/157685 Tested-by: Jenkins Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
153 lines
4.1 KiB
C++
153 lines
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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#include <sal/types.h>
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#include <basegfx/basegfxdllapi.h>
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#include <basegfx/tuple/Tuple2D.hxx>
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namespace basegfx
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{
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class B2ITuple;
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/** Base class for all Points/Vectors with two double values
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This class provides all methods common to Point
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and Vector classes which are derived from here.
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@derive Use this class to implement Points or Vectors
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which are based on two double values
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*/
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class SAL_WARN_UNUSED B2DTuple : public Tuple2D<double>
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{
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public:
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/** Create a 2D Tuple
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The tuple is initialized to (0.0, 0.0)
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*/
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B2DTuple()
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: Tuple2D(0.0, 0.0)
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{}
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/** Create a 2D Tuple
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@param fX
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This parameter is used to initialize the X-coordinate
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of the 2D Tuple.
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@param fY
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This parameter is used to initialize the Y-coordinate
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of the 2D Tuple.
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*/
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B2DTuple(double fX, double fY)
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: Tuple2D(fX, fY)
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{}
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B2DTuple(Tuple2D<double> const& rTuple)
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: Tuple2D(rTuple)
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{}
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/** Create a copy of a 2D integer Tuple
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@param rTup
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The 2D Tuple which will be copied.
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*/
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BASEGFX_DLLPUBLIC explicit B2DTuple(const B2ITuple& rTup);
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// operators
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B2DTuple operator-(void) const
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{
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return B2DTuple(-mnX, -mnY);
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}
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BASEGFX_DLLPUBLIC static const B2DTuple& getEmptyTuple();
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};
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// external operators
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inline B2DTuple absolute(const B2DTuple& rTup)
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{
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B2DTuple aAbs(
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fabs(rTup.getX()),
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fabs(rTup.getY()));
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return aAbs;
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}
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inline B2DTuple interpolate(const B2DTuple& rOld1, const B2DTuple& rOld2, double t)
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{
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if(rOld1 == rOld2)
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{
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return rOld1;
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}
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else if(0.0 >= t)
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{
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return rOld1;
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}
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else if(1.0 <= t)
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{
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return rOld2;
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}
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else
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{
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return B2DTuple(
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((rOld2.getX() - rOld1.getX()) * t) + rOld1.getX(),
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((rOld2.getY() - rOld1.getY()) * t) + rOld1.getY());
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}
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}
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inline B2DTuple average(const B2DTuple& rOld1, const B2DTuple& rOld2)
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{
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return B2DTuple(
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rtl_math_approxEqual(rOld1.getX(), rOld2.getX()) ? rOld1.getX() : (rOld1.getX() + rOld2.getX()) * 0.5,
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rtl_math_approxEqual(rOld1.getY(), rOld2.getY()) ? rOld1.getY() : (rOld1.getY() + rOld2.getY()) * 0.5);
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}
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inline B2DTuple operator*(const B2DTuple& rTup, double t)
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{
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B2DTuple aNew(rTup);
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aNew *= t;
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return aNew;
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}
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inline B2DTuple operator*(double t, const B2DTuple& rTup)
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{
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B2DTuple aNew(rTup);
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aNew *= t;
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return aNew;
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}
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inline B2DTuple operator/(const B2DTuple& rTup, double t)
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{
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B2DTuple aNew(rTup);
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aNew /= t;
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return aNew;
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}
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/** Round double to nearest integer for 2D tuple
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@return the nearest integer for this tuple
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*/
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BASEGFX_DLLPUBLIC B2ITuple fround(const B2DTuple& rTup);
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} // end of namespace basegfx
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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