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// shape.h
// this file is part of Context Free
// ---------------------
// Copyright (C) 2005-2008 Mark Lentczner - markl@glyphic.com
// Copyright (C) 2005-2015 John Horigan - john@glyphic.com
//
// This program 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 program 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.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// John Horigan can be contacted at john@glyphic.com or at
// John Horigan, 1209 Villa St., Mountain View, CA 94041-1123, USA
//
// Mark Lentczner can be contacted at markl@glyphic.com or at
// Mark Lentczner, 1209 Villa St., Mountain View, CA 94041-1123, USA
//
//
#ifndef INCLUDE_SHAPE_H
#define INCLUDE_SHAPE_H
#include <iostream>
#include <cmath>
#include <functional>
#include "agg2/agg_math_stroke.h"
#include "agg2/agg_trans_affine.h"
#include "agg_trans_affine_1D.h"
#include "agg_trans_affine_time.h"
#include "agg2/agg_color_rgba.h"
#include "agg2/agg_pixfmt_rgba.h"
#include "HSBColor.h"
#include "Rand64.h"
#include "bounds.h"
#include "stacktype.h"
// Contains all of the information about a change to a shape
class Modification {
public:
agg::trans_affine m_transform;
agg::trans_affine_1D m_Z;
agg::trans_affine_time m_time;
HSBColor m_Color;
HSBColor m_ColorTarget;
unsigned m_ColorAssignment = 0;
int m_BlendMode = 0;
Rand64 mRand64Seed;
Modification() = default;
double area() const { return fabs(m_transform.determinant()); }
bool isFinite() const;
Modification operator*(const Modification& m) const
{
Modification n = *this;
n *= m;
return n;
}
Modification& operator*=(const Modification& m)
{
m_transform.premultiply(m.m_transform);
m_Z.premultiply(m.m_Z);
m_time.premultiply(m.m_time);
HSBColor::Adjust(m_Color, m_ColorTarget, m.m_Color, m.m_ColorTarget,
m.m_ColorAssignment);
mRand64Seed ^= m.mRand64Seed;
if (m.m_BlendMode)
m_BlendMode = m.m_BlendMode;
return *this;
}
bool merge(const Modification& m);
};
class ShapeBase {
public:
int mShapeType = -1;
Modification mWorldState;
double mAreaCache;
double area() const { return mAreaCache; }
protected:
ShapeBase()
{ mAreaCache = mWorldState.area(); }
void write(std::ostream& os) const;
void read(std::istream& is);
};
// Contains all of the information about a shape that is used during parsing
// and executing a cfdg file
class Shape : public ShapeBase {
public:
Shape() = default;
Shape(const Shape&) = default;
Shape(Shape&& s) noexcept
: ShapeBase(s), mParameters(std::move(s.mParameters))
{ }
~Shape() = default;
Shape& operator=(const Shape& o) {
if (this == &o) return *this;
mShapeType = o.mShapeType;
mWorldState = o.mWorldState;
mAreaCache = o.mAreaCache;
mParameters = o.mParameters;
return *this;
}
Shape& operator=(Shape&& o) noexcept {
if (this == &o) return *this;
mShapeType = o.mShapeType;
mWorldState = o.mWorldState;
mAreaCache = o.mAreaCache;
mParameters = std::move(o.mParameters);
return *this;
}
param_ptr mParameters;
Shape operator*(const Modification& m) const {
Shape s = *this;
s.mWorldState *= m;
s.mAreaCache = s.mWorldState.area();
return s;
}
Shape& operator*=(const Modification& m) {
mWorldState *= m;
mAreaCache = mWorldState.area();
return *this;
}
bool operator<(const Shape& b) const { return mAreaCache < b.mAreaCache; }
void write(std::ostream& os) const;
void read(std::istream& is);
protected:
void writeParams(std::ostream& os) const;
void readParams(std::istream& is);
};
class FinishedShape : public Shape {
public:
Bounds mBounds;
FinishedShape() = default;
FinishedShape(Shape&& s, int order, const Bounds& b) noexcept
{
mShapeType = s.mShapeType;
mWorldState = s.mWorldState;
mWorldState.m_ColorAssignment = static_cast<unsigned>(order);
mParameters = s.mParameters;
mBounds = b;
}
FinishedShape(const FinishedShape&) = default;
FinishedShape(FinishedShape&&) noexcept = default;
FinishedShape& operator=(const FinishedShape& o) {
if (this == &o) return *this;
mShapeType = o.mShapeType;
mWorldState = o.mWorldState;
mAreaCache = o.mAreaCache;
mParameters = o.mParameters;
mBounds = o.mBounds;
return *this;
}
FinishedShape& operator=(FinishedShape&& o) noexcept {
if (this == &o) return *this;
mShapeType = o.mShapeType;
mWorldState = o.mWorldState;
mAreaCache = o.mAreaCache;
mParameters = std::move(o.mParameters);
mBounds = o.mBounds;
return *this;
}
bool operator<(const Shape& b) const
{
return (mWorldState.m_Z.tz == b.mWorldState.m_Z.tz) ?
(mWorldState.m_ColorAssignment < b.mWorldState.m_ColorAssignment) :
(mWorldState.m_Z.tz < b.mWorldState.m_Z.tz);
}
void write(std::ostream& os) const;
void read(std::istream& is);
};
inline std::ostream& operator<<(std::ostream& os, const Shape& s) { s.write(os); return os; }
inline std::istream& operator>>(std::istream& is, Shape& s) { s.read(is); return is; }
inline std::ostream& operator<<(std::ostream& os, const FinishedShape& s) { s.write(os); return os; }
inline std::istream& operator>>(std::istream& is, FinishedShape& s) { s.read(is); return is; }
const double MY_PI = 3.14159265358979323846;
const int ModificationSize = (sizeof(Modification) + 7) >> 3;
using ShapeFunction = std::function<void (const FinishedShape&)>;
#endif // INCLUDE_SHAPE_H
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