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#ifndef MANDELBROT_H
#define MANDELBROT_H
#include <Eigen/Array>
#include <QtGui/QApplication>
#include <QtGui/QWidget>
#ifdef REAL
typedef REAL real;
#else
typedef float real;
#endif
enum { packetSize = Eigen::ei_packet_traits<real>::size }; // number of reals in a packet
typedef Eigen::Matrix<real, packetSize, 1> packet; // wrap a packet as a vector
typedef Eigen::Matrix<real, 2, 1> vector2; // really just a complex number, but we're here to demo Eigen !
const int iter = 32; // the maximum number of iterations done per pixel. Must be a multiple of 4.
class MandelbrotWidget : public QWidget
{
Q_OBJECT
vector2 center;
real xradius;
int size;
unsigned char *buffer;
QPoint lastpos;
protected:
void resizeEvent(QResizeEvent *);
void paintEvent(QPaintEvent *);
void mousePressEvent(QMouseEvent *event);
void mouseMoveEvent(QMouseEvent *event);
public:
MandelbrotWidget() : QWidget(), center(real(0),real(0)), xradius(2),
size(0), buffer(0)
{
setAutoFillBackground(false);
setWindowTitle(QString("Mandelbrot/Eigen, sizeof(real)=")+QString::number(sizeof(real))
+", sizeof(packet)="+QString::number(sizeof(packet)));
}
~MandelbrotWidget() { if(buffer) delete[]buffer; }
};
#endif // MANDELBROT_H
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