A Graphical Documentation System for C/C++ projects

#ifndef DIAGRAMWIDGET_H
#define DIAGRAMWIDGET_H

#include "GraphCore_global.h"
#include <QtGui>

enum OP {ADD, SUB, MUL, DIV, POW};
enum TYPE {X, OPERATION, OPERAND};
struct operationOrOperand
{
    TYPE type;
    OP operation;
    qreal operand;
};

class expression
{
public:
    QVector<operationOrOperand> steps;
};

class GRAPHCORESHARED_EXPORT DiagramWidget : public QWidget
{
    Q_OBJECT
public:
    explicit DiagramWidget(QWidget *parent = 0);

    void drawFunc(QString fun);

protected:
    void paintEvent(QPaintEvent *);

private:
    qreal XtoPlanCoords(qreal xcoord);
    qreal YtoScreenCoords(qreal ycoord);
    qreal applyExp(int index, qreal x);
    bool m_functionSet;
    expression myExp;

signals:

public slots:

};

extern "C" GRAPHCORESHARED_EXPORT DiagramWidget* createWidget();

#endif // DIAGRAMWIDGET_H