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// builder.h
// this file is part of Context Free
// ---------------------
// Copyright (C) 2005-2008 Mark Lentczner - markl@glyphic.com
// Copyright (C) 2005-2008 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_BUILDER_H
#define INCLUDE_BUILDER_H
#ifdef _WIN32
#pragma warning( disable : 4786 )
#endif
#include <iostream>
#include <queue>
#include <stack>
#include <string>
#include "agg_basics.h"
#include "Rand48.h"
#include "shape.h"
class CFDGImpl;
class Builder {
public:
enum LoopType { noLoop, unknownLoop, opLoop, cmdLoop };
CFDGImpl* m_CFDG;
std::queue<std::string> m_filesToLoad;
std::string m_currentPath;
std::istream* m_input;
int mShapeType;
Modification mCurrentModification;
std::stack<Modification> mSavedModifications;
std::stack<unsigned> mSavedPathIndices;
double mOrientation;
double mReflection;
bool mReflected;
double mSizeX;
double mSizeY;
double mSizeZ;
double mSkewX;
double mSkewY;
char* mParameters;
double mXLocation;
double mYLocation;
double mZLocation;
int mMask;
Rule m_currRule;
agg::point_d mPathPoints[5];
agg::point_d mLastPoint;
bool mStop;
bool mClosed;
bool mWantMoveTo;
unsigned mIndex;
unsigned mNextIndex;
double mStrokeWidth;
Rand48 mSeed;
void addEntropy(const char* txt, bool isNumber = false);
void negEntropy();
static unsigned ModSeedIndex;
static bool WasNumber;
static Rand48 SavedSeed;
static char SavedText[32];
static unsigned SavedSeedIndex;
static pathAttr DefaultPathAttributes;
void LoopStart();
void LoopEnd(int loopCount);
void PathLoopStart();
const char* PathLoopEnd(int loopCount);
LoopType mLoopState;
int mPendingLoops;
unsigned mLoopDepth;
Builder(CFDGImpl* cfdg, int variation)
: m_CFDG(cfdg), m_input(0), mOrientation(0.0), mReflection(0.0),
mReflected(false), mSizeX(1.0), mSizeY(1.0), mSizeZ(1.0),
mSkewX(0.0), mSkewY(0.0), mParameters(0), mXLocation(0.0),
mYLocation(0.0), mZLocation(0.0), mMask(0), mStrokeWidth(0.1),
mLoopState(noLoop), mPendingLoops(0), mLoopDepth(0)
{
mPathPoints[0].x = mPathPoints[0].y =
mPathPoints[1].x = mPathPoints[1].y =
mPathPoints[2].x = mPathPoints[2].y =
mPathPoints[3].x = mPathPoints[3].y =
mPathPoints[4].x = mPathPoints[4].y = 0.0;
mLastPoint.x = mLastPoint.y = 0.0;
mSeed.seed(0x330E, (unsigned short)((variation >> 16) & 0xffff),
(unsigned short)(variation & 0xffff));
}
~Builder();
void Orientation(double);
void Reflection(double);
void Size(double, double, double);
void Skew(double, double);
void Parameters(char*);
void XLocation(double);
void YLocation(double);
void ZLocation(double);
void PointX(double, int);
void PointY(double, int);
const char* pathOp(const char*);
const char* pathCmd(const char*);
void StrokeWidth(double);
void buildDefaultTransform();
const char* buildTileTransform();
const char* buildSizeTransform();
void clearModification();
void startPath();
void finishPath(bool);
private:
enum OpType { moveto = 0, moverel = 1, lineto = 2, linerel = 3,
arcto = 4, arcrel = 5, curveto = 6, curverel = 7,
closepoly = 8 };
void addAttribute(pathAttr* newAttr);
void unwindLoops(LoopType t, bool gotMoveTo);
void CmdLoopStart();
void OpLoopStart(bool gotMoveTo);
void CmdLoopEnd(int loopCount);
const char* OpLoopEnd(int loopCount);
};
#endif // INCLUDE_BUILDER_H
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