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Diffstat (limited to 'examples/widgets/gestures/imagegestures/imagewidget.h')
-rw-r--r-- | examples/widgets/gestures/imagegestures/imagewidget.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/examples/widgets/gestures/imagegestures/imagewidget.h b/examples/widgets/gestures/imagegestures/imagewidget.h new file mode 100644 index 0000000000..7aaf554117 --- /dev/null +++ b/examples/widgets/gestures/imagegestures/imagewidget.h @@ -0,0 +1,100 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 Digia Plc and its Subsidiary(-ies) 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef IMAGEWIDGET_H +#define IMAGEWIDGET_H + +#include <QWidget> +#include <QImage> +#include <QtWidgets> + +QT_BEGIN_NAMESPACE +class QGestureEvent; +class QPanGesture; +class QPinchGesture; +class QSwipeGesture; +QT_END_NAMESPACE + +//! [class definition begin] +class ImageWidget : public QWidget +{ + Q_OBJECT + +public: + ImageWidget(QWidget *parent = 0); + void openDirectory(const QString &path); + +protected: + bool event(QEvent *event); + void paintEvent(QPaintEvent *event); + void resizeEvent(QResizeEvent *event); + void mouseDoubleClickEvent(QMouseEvent *event); + +private: + bool gestureEvent(QGestureEvent *event); + void panTriggered(QPanGesture*); + void pinchTriggered(QPinchGesture*); + void swipeTriggered(QSwipeGesture*); +//! [class definition begin] + + void updateImage(); + QImage loadImage(const QString &fileName); + void loadImage(); + void goNextImage(); + void goPrevImage(); + void goToImage(int index); + + QString path; + QStringList files; + int position; + + QImage prevImage, nextImage; + QImage currentImage; + + float horizontalOffset; + float verticalOffset; + float rotationAngle; + float scaleFactor; + float currentStepScaleFactor; +//! [class definition end] +}; +//! [class definition end] + +#endif |