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	Search   expressiongraph.h /*************************************************************************** expressiongraph.h - description ------------------- begin : Fri Dec 20 2002 copyright : (C) 2002-03 by Fungmeista email : mizunoami44@users.sourceforge.net ***************************************************************************/ /*************************************************************************** * * * 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. * * * ***************************************************************************/ #ifndef EXPRESSIONGRAPH_H #define EXPRESSIONGRAPH_H #include <vector> #include "basicgraph.h" #include "animator.h" class MathFunction; class Expression; class FungParser; typedef std::vector<Expression*> ExpressionPtrVector; class ExpressionGraph : public BasicGraph, public Animator { Q_OBJECT public: ExpressionGraph(QWidget *parent=0, const char *name=0); ~ExpressionGraph(); void load_key( const char *key, const char *value ); void addExpression(const Expression &); //void setColor(const QColor&,unsigned int); void removeExpression(unsigned int index); inline unsigned int getCurrentExpressionIndex(){return expressionIndex;} inline void setCurrentExpressionIndex(int i){expressionIndex = i;} Expression getExpression(unsigned int i) const; inline unsigned int expressionCount(){return functions.size();} #ifdef KDE_APP virtual void print(KPrinter *); #else virtual void print(QPrinter *); #endif //KDE_APP void setAngle(int m){angle = m; reparseAll(); repaint(false);} int getAngle() const{return angle;} inline bool isTracing() const{return doTrace;} inline bool isDrawConnected() const{return drawConnected;} void exportAsImage(const QString& file,const QString& fileType); void getPixmap(QPixmap &pm); void onlyShowActive(bool b){only_show_active = b;} void setDisplayExpressionText(bool b){displayExpressionText = b;} public slots: void nextExpression(); void prevExpression(); inline void setDrawConnected(bool b){drawConnected = b; repaint(false);} void setShowCurrentExpression(bool state); void setTrace(bool); void slotNextFrame(){nextFrame();} signals: void animationValueChanged(double); protected: friend class MathFunction; //virtual int callSetXYForTrace(const double, const double, double *, double *); virtual int setXYForTrace(const double, const double, double *, double *, Expression &){return 0;} //virtual void callDrawExpression(Expression &, QPainter *painter); virtual void drawExpression(QPainter *, Expression & expression) = 0; void drawExpressionAt(QPainter *painter, int i); virtual void putUndefinedMessage(double x, double y); virtual unsigned int var_count(){return 1;} virtual void drawAfterAxis(QPainter *); virtual const char * independent_vars() = 0; virtual const char * dependent_var(int i=0) = 0; inline virtual double traceDepX(double d){return d;} inline virtual double traceDepY(double d){return d;} void reparseAll(); FungParser * getParsedCurrentExpression(int i=0); //FungParser * getParsedExpression( int index, int i = 0 ) int parseExpression( std::string & expression, FungParser *fp, int i=0); bool isValidExpression(const Expression &, std::string *errorMsg = 0); //events void paintEvent(QPaintEvent*); void mouseMoveEvent(QMouseEvent *); virtual void nextFrameReady(); private: bool doTrace, drawConnected; unsigned int expressionIndex; int functionWidth; int angle; bool only_show_active, displayExpressionText; ExpressionPtrVector functions; void drawExpressions(QPainter*); }; #endif