68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
// This file is part of Eigen, a lightweight C++ template library
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// for linear algebra.
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//
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// Copyright (C) 2008 Benoit Jacob <jacob.benoit.1@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla
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// Public License v. 2.0. If a copy of the MPL was not distributed
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// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef MANDELBROT_H
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#define MANDELBROT_H
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#include <Eigen/Core>
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#include <QtGui/QApplication>
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#include <QtGui/QWidget>
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#include <QtCore/QThread>
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class MandelbrotWidget;
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class MandelbrotThread : public QThread {
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friend class MandelbrotWidget;
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MandelbrotWidget *widget;
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long long total_iter;
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int id, max_iter;
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bool single_precision;
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public:
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MandelbrotThread(MandelbrotWidget *w, int i) : widget(w), id(i) {}
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void run();
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template <typename Real>
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void render(int img_width, int img_height);
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};
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class MandelbrotWidget : public QWidget {
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Q_OBJECT
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friend class MandelbrotThread;
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Eigen::Vector2d center;
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double xradius;
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int size;
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unsigned char *buffer;
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QPoint lastpos;
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int draft;
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MandelbrotThread **threads;
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int threadcount;
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protected:
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void resizeEvent(QResizeEvent *);
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void paintEvent(QPaintEvent *);
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void mousePressEvent(QMouseEvent *event);
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void mouseMoveEvent(QMouseEvent *event);
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public:
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MandelbrotWidget() : QWidget(), center(0, 0), xradius(2), size(0), buffer(0), draft(16) {
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setAutoFillBackground(false);
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threadcount = QThread::idealThreadCount();
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threads = new MandelbrotThread *[threadcount];
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for (int th = 0; th < threadcount; th++) threads[th] = new MandelbrotThread(this, th);
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}
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~MandelbrotWidget() {
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if (buffer) delete[] buffer;
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for (int th = 0; th < threadcount; th++) delete threads[th];
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delete[] threads;
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}
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};
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#endif // MANDELBROT_H
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