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Diffstat (limited to 'static/source/qt5-mandelbrot/mandelbrotwidget.h')
-rw-r--r-- | static/source/qt5-mandelbrot/mandelbrotwidget.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/static/source/qt5-mandelbrot/mandelbrotwidget.h b/static/source/qt5-mandelbrot/mandelbrotwidget.h new file mode 100644 index 000000000..72e95568b --- /dev/null +++ b/static/source/qt5-mandelbrot/mandelbrotwidget.h @@ -0,0 +1,91 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#pragma once + +#include <QtGui/QPixmap> +#include <QtWidgets/QWidget> + +#include "renderthread.h" + +class MandelbrotWidget : public QWidget +{ + Q_OBJECT + +public: + MandelbrotWidget(QWidget* parent = nullptr); + +protected: + void paintEvent(QPaintEvent* event) override; + void resizeEvent(QResizeEvent* event) override; + void keyPressEvent(QKeyEvent* event) override; +#if QT_CONFIG(wheelevent) + void wheelEvent(QWheelEvent* event) override; +#endif + void mousePressEvent(QMouseEvent* event) override; + void mouseMoveEvent(QMouseEvent* event) override; + void mouseReleaseEvent(QMouseEvent* event) override; + +private slots: + void updatePixmap(const QImage& image, double scaleFactor); + void zoom(double zoomFactor); + +private: + void scroll(int deltaX, int deltaY); + + RenderThread thread; + QPixmap pixmap; + QPoint pixmapOffset; + QPoint lastDragPos; + double centerX; + double centerY; + double pixmapScale; + double curScale; +}; |