embeddedsvgviewer.h

Enable keyboard shortcuts

// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

#ifndef EMBEDDED_SVG_VIEWER_H

#define EMBEDDED_SVG_VIEWER_H

#include <QWidget>

#include <QString>

#include <QSize>

class QSvgRenderer;

class QMouseEvent;

class QSlider;

class QPushButton;

class EmbeddedSvgViewer : public QWidget

    Q_OBJECT

public:

    EmbeddedSvgViewer(const QString& filePath);

    void paintEvent(QPaintEvent *event) override;

    void mouseMoveEvent(QMouseEvent *event) override;

    void mousePressEvent(QMouseEvent *event) override;

    void resizeEvent(QResizeEvent *event) override;

public Q_SLOTS:

    void setZoom(int); // 100 <= newZoom < 0

private:

    QSvgRenderer* m_renderer;

    QSlider* m_zoomSlider;

    QPushButton* m_quitButton;

    QSize m_imageSize;

    qreal m_zoomLevel;

    qreal m_imageScale; // How many Image coords 1 widget pixel is worth

    QRectF m_viewBox;

    QRectF m_viewBoxBounds;

    QSizeF m_viewBoxSize;

    QPointF m_viewBoxCenter;

    QPointF m_viewBoxCenterOnMousePress;

    QPoint m_mousePress;

    void updateImageScale();

    QRectF getViewBox(QPointF viewBoxCenter);

};

#endif