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https://github.com/crystalidea/qt6windows7.git
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58 lines
1.2 KiB
C++
58 lines
1.2 KiB
C++
// Copyright (C) 2021 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#ifndef RENDERTHREAD_H
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#define RENDERTHREAD_H
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#include <QMutex>
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#include <QSize>
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#include <QThread>
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#include <QWaitCondition>
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QT_BEGIN_NAMESPACE
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class QImage;
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QT_END_NAMESPACE
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//! [0]
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class RenderThread : public QThread
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{
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Q_OBJECT
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public:
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RenderThread(QObject *parent = nullptr);
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~RenderThread();
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void render(double centerX, double centerY, double scaleFactor, QSize resultSize,
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double devicePixelRatio);
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static void setNumPasses(int n) { numPasses = n; }
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static QString infoKey() { return QStringLiteral("info"); }
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signals:
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void renderedImage(const QImage &image, double scaleFactor);
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protected:
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void run() override;
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private:
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static uint rgbFromWaveLength(double wave);
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QMutex mutex;
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QWaitCondition condition;
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double centerX;
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double centerY;
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double scaleFactor;
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double devicePixelRatio;
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QSize resultSize;
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static int numPasses;
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bool restart = false;
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bool abort = false;
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enum { ColormapSize = 512 };
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uint colormap[ColormapSize];
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};
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//! [0]
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#endif // RENDERTHREAD_H
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