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/*
* sk_factory.h - Classical Three-Dimensional Artwork for Qt 4
*
* Copyright (c) 2008 Christoph Feck <christoph@maxiom.de>
*
* 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 3 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef SKULPTURE_FACTORY_H
#define SKULPTURE_FACTORY_H 1
/*-----------------------------------------------------------------------*/
#include <QtGui/QPainterPath>
#include <QtGui/QLinearGradient>
#include <QtGui/QColor>
class AbstractFactory
{
public:
typedef qint8 Code;
typedef const Code *Description;
static const int MinVar = 1;
static const int MaxVar = 9;
public:
enum OpCode
{
/* Values */
MinVal = -100, MaxVal = 100,
GetVar = 100,
Add = 110, Sub, Mul, Div, Min, Max, Mix, Cond,
/* Colors */
RGB = 0, RGBA, RGBAf, Blend, Palette, Shade, Darker, Lighter,
/* Conditions */
EQ = 0, NE, LT, GE, GT, LE, Or, And, Not, FactoryVersion,
OptionVersion, OptionType, OptionComplex, OptionState, OptionRTL,
/* Instructions */
SetVar = 100,
/* Shape */ Move = 121, Line, Quad, Cubic, Close,
/* Gradient */ ColorAt = 121,
/* Frame */
/* Panel */
/* Primitive */
/* Control */
Begin = 118, Else = 119, End = 120, If = 126, While = 127, Nop = 0
};
protected:
AbstractFactory() : p(0), opt(0) { }
virtual ~AbstractFactory() { }
protected:
void setDescription(Description description) { p = description; }
void setOption(const QStyleOption *option) { opt = option; }
void setVar(int n, qreal value) { var[n] = value; }
qreal getVar(int n) const { return var[n]; }
void create();
protected:
virtual void executeCode(Code code) QT_FASTCALL;
virtual void skipCode(Code code) QT_FASTCALL;
virtual int version() QT_FASTCALL { return 0; }
protected:
qreal evalValue() QT_FASTCALL;
QColor evalColor() QT_FASTCALL;
void skipValue() QT_FASTCALL;
void skipColor() QT_FASTCALL;
private:
bool evalCondition() QT_FASTCALL;
void skipCondition() QT_FASTCALL;
private:
Description p;
const QStyleOption *opt;
qreal var[MaxVar + 1];
};
/*-----------------------------------------------------------------------*/
class ShapeFactory : public AbstractFactory
{
public:
static QPainterPath createShape(Description description, qreal var[]);
static QPainterPath createShape(Description description);
protected:
ShapeFactory() : AbstractFactory() { }
virtual ~ShapeFactory() { }
void clear() { path = QPainterPath(); }
const QPainterPath &getPath() const { return path; }
protected:
virtual void executeCode(Code code) QT_FASTCALL;
virtual void skipCode(Code code) QT_FASTCALL;
private:
QPainterPath path;
};
#define Pvalue(v) int(100 * (v) + 0.5)
#define Pmove(x,y) ShapeFactory::Move, Pvalue(x), Pvalue(y)
#define Pline(x,y) ShapeFactory::Line, Pvalue(x), Pvalue(y)
#define Pquad(x,y,a,b) ShapeFactory::Quad, Pvalue(x), Pvalue(y), Pvalue(a), Pvalue(b)
#define Pcubic(x,y,a,b,c,d) ShapeFactory::Cubic, Pvalue(x), Pvalue(y), Pvalue(a), Pvalue(b), Pvalue(c), Pvalue(d)
#define Pend ShapeFactory::Close, ShapeFactory::End
#define Pclose ShapeFactory::Close
/*-----------------------------------------------------------------------*/
class GradientFactory : public AbstractFactory
{
public:
static QGradient createGradient(Description description, qreal var[]);
static QGradient createGradient(Description description);
protected:
GradientFactory() : AbstractFactory() { }
virtual ~GradientFactory() { }
protected:
void clear() { gradient.setStops(QGradientStops()); }
const QGradient &getGradient() const { return gradient; }
protected:
virtual void executeCode(Code code) QT_FASTCALL;
virtual void skipCode(Code code) QT_FASTCALL;
private:
QGradient gradient;
};
/*-----------------------------------------------------------------------*/
#endif
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