/usr/include/synfig-0.0/synfig/gradient.h is in libsynfig-dev 0.64.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*! \file gradient.h
** \brief Color Gradient Class
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
** Copyright (c) 2007 Chris Moore
**
** This package is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License as
** published by the Free Software Foundation; either version 2 of
** the License, or (at your option) any later version.
**
** This package is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** General Public License for more details.
** \endlegal
*/
/* ========================================================================= */
/* === S T A R T =========================================================== */
#ifndef __SYNFIG_GRADIENT_H
#define __SYNFIG_GRADIENT_H
/* === H E A D E R S ======================================================= */
#include "real.h"
#include "color.h"
#include <vector>
#include <utility>
#include "uniqueid.h"
/* === M A C R O S ========================================================= */
/* === T Y P E D E F S ===================================================== */
/* === C L A S S E S & S T R U C T S ======================================= */
namespace synfig {
/*! \struct GradientCPoint
** \brief \todo
*/
struct GradientCPoint : public UniqueID
{
Real pos;
Color color;
bool operator<(const GradientCPoint &rhs)const { return pos<rhs.pos; }
bool operator<(const Real &rhs)const { return pos<rhs; }
GradientCPoint() { }
GradientCPoint(const Real &pos, const Color &color):pos(pos),color(color) { }
}; // END of class GradientCPoint
/*! \class Gradient
** \brief Color Gradient Class
*/
using namespace std;
class Gradient
{
public:
typedef GradientCPoint CPoint;
typedef vector<CPoint> CPointList;
typedef CPointList::const_iterator const_iterator;
typedef CPointList::iterator iterator;
typedef CPointList::const_reverse_iterator const_reverse_iterator;
typedef CPointList::reverse_iterator reverse_iterator;
private:
CPointList cpoints;
public:
Gradient() { }
//! Two-Tone Color Gradient Convenience Constructor
Gradient(const Color &c1, const Color &c2);
//! Three-Tone Color Gradient Convenience Constructor
Gradient(const Color &c1, const Color &c2, const Color &c3);
//! Alias for sort (Implemented for consistency)
void sync() { sort(); }
//! You should call this function after changing stuff.
void sort();
void push_back(const CPoint cpoint) { cpoints.push_back(cpoint); }
iterator erase(iterator iter) { return cpoints.erase(iter); }
bool empty()const { return cpoints.empty(); }
size_t size()const { return cpoints.size(); }
iterator begin() { return cpoints.begin(); }
iterator end() { return cpoints.end(); }
reverse_iterator rbegin() { return cpoints.rbegin(); }
reverse_iterator rend() { return cpoints.rend(); }
const_iterator begin()const { return cpoints.begin(); }
const_iterator end()const { return cpoints.end(); }
const_reverse_iterator rbegin()const { return cpoints.rbegin(); }
const_reverse_iterator rend()const { return cpoints.rend(); }
Gradient &operator+=(const Gradient &rhs);
Gradient &operator-=(const Gradient &rhs);
Gradient &operator*=(const float &rhs);
Gradient &operator/=(const float &rhs);
Gradient operator+(const Gradient &rhs)const { return Gradient(*this)+=rhs; }
Gradient operator-(const Gradient &rhs)const { return Gradient(*this)-=rhs; }
Gradient operator*(const float &rhs)const { return Gradient(*this)*=rhs; }
Gradient operator/(const float &rhs)const { return Gradient(*this)/=rhs; }
Color operator()(const Real &x, float supersample=0)const;
Real mag()const;
//! Returns the iterator of the CPoint closest to \a x
iterator proximity(const Real &x);
//! Returns the const_iterator of the CPoint closest to \a x
const_iterator proximity(const Real &x)const;
//! Returns the iterator of the CPoint with UniqueID \a id
iterator find(const UniqueID &id);
//! Returns the const_iterator of the CPoint with UniqueID \a id
const_iterator find(const UniqueID &id)const;
}; // END of class Gradient
}; // END of namespace synfig
/* === E N D =============================================================== */
#endif
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