e4c533c336
- Update screenshot - Provide some information text on the screen when no images are found - Add all supported image formats to the file filters - Minor fixes according to our coding conventions: eg. don't shadow variables Fixes: QTBUG-119979 Change-Id: If41adf34f38bfa101f2c5433082828c1a10668b1 Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io> (cherry picked from commit 30e6d822327d8105d209af10d077512f21ecc12c) Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
67 lines
1.5 KiB
C++
67 lines
1.5 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#ifndef IMAGEWIDGET_H
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#define IMAGEWIDGET_H
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#include <QFileInfo>
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#include <QImage>
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#include <QLoggingCategory>
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#include <QWidget>
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QT_BEGIN_NAMESPACE
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class QGestureEvent;
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class QPanGesture;
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class QPinchGesture;
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class QSwipeGesture;
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QT_END_NAMESPACE
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Q_DECLARE_LOGGING_CATEGORY(lcExample)
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//! [class definition begin]
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class ImageWidget : public QWidget
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{
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Q_OBJECT
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public:
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ImageWidget(QWidget *parent = nullptr);
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void openDirectory(const QString &url);
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void grabGestures(const QList<Qt::GestureType> &gestures);
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protected:
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bool event(QEvent *event) override;
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void paintEvent(QPaintEvent *event) override;
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void resizeEvent(QResizeEvent *event) override;
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void mouseDoubleClickEvent(QMouseEvent *event) override;
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private:
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bool gestureEvent(QGestureEvent *event);
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void panTriggered(QPanGesture*);
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void pinchTriggered(QPinchGesture*);
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void swipeTriggered(QSwipeGesture*);
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//! [class definition begin]
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QImage loadImage(const QFileInfo &fileInfo) const;
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void loadImage();
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void goNextImage();
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void goPrevImage();
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void goToImage(int index);
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QString path;
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QFileInfoList files;
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int position;
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QImage prevImage, nextImage;
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QImage currentImage;
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qreal horizontalOffset;
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qreal verticalOffset;
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qreal rotationAngle;
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qreal scaleFactor;
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qreal currentStepScaleFactor;
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//! [class definition end]
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};
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//! [class definition end]
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#endif
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