mirror of
https://github.com/crystalidea/qt6windows7.git
synced 2024-11-23 20:10:48 +08:00
67 lines
1.5 KiB
C++
67 lines
1.5 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
|
|
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
|
|
|
|
#ifndef IMAGEWIDGET_H
|
|
#define IMAGEWIDGET_H
|
|
|
|
#include <QFileInfo>
|
|
#include <QImage>
|
|
#include <QLoggingCategory>
|
|
#include <QWidget>
|
|
|
|
QT_BEGIN_NAMESPACE
|
|
class QGestureEvent;
|
|
class QPanGesture;
|
|
class QPinchGesture;
|
|
class QSwipeGesture;
|
|
QT_END_NAMESPACE
|
|
|
|
Q_DECLARE_LOGGING_CATEGORY(lcExample)
|
|
|
|
//! [class definition begin]
|
|
class ImageWidget : public QWidget
|
|
{
|
|
Q_OBJECT
|
|
|
|
public:
|
|
ImageWidget(QWidget *parent = nullptr);
|
|
void openDirectory(const QString &path);
|
|
void grabGestures(const QList<Qt::GestureType> &gestures);
|
|
|
|
protected:
|
|
bool event(QEvent *event) override;
|
|
void paintEvent(QPaintEvent *event) override;
|
|
void resizeEvent(QResizeEvent *event) override;
|
|
void mouseDoubleClickEvent(QMouseEvent *event) override;
|
|
|
|
private:
|
|
bool gestureEvent(QGestureEvent *event);
|
|
void panTriggered(QPanGesture*);
|
|
void pinchTriggered(QPinchGesture*);
|
|
void swipeTriggered(QSwipeGesture*);
|
|
//! [class definition begin]
|
|
|
|
QImage loadImage(const QFileInfo &fileInfo) const;
|
|
void loadImage();
|
|
void goNextImage();
|
|
void goPrevImage();
|
|
void goToImage(int index);
|
|
|
|
QString path;
|
|
QFileInfoList files;
|
|
int position;
|
|
|
|
QImage prevImage, nextImage;
|
|
QImage currentImage;
|
|
|
|
qreal horizontalOffset;
|
|
qreal verticalOffset;
|
|
qreal rotationAngle;
|
|
qreal scaleFactor;
|
|
qreal currentStepScaleFactor;
|
|
//! [class definition end]
|
|
};
|
|
//! [class definition end]
|
|
|
|
#endif
|