69 lines
2.2 KiB
C++
69 lines
2.2 KiB
C++
#ifndef GRAPHICSVIEW_H
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#define GRAPHICSVIEW_H
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#include <QGraphicsView>
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#include <QUrl>
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class GraphicsScene;
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class GraphicsView : public QGraphicsView
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{
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Q_OBJECT
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public:
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GraphicsView(QWidget *parent = nullptr);
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void showFileFromPath(const QString &filePath, bool requestGallery = false);
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void showImage(const QPixmap &pixmap);
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void showImage(const QImage &image);
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void showText(const QString &text);
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void showSvg(const QString &filepath);
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void showGif(const QString &filepath);
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GraphicsScene * scene() const;
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void setScene(GraphicsScene *scene);
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qreal scaleFactor() const;
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void resetTransform();
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void zoomView(qreal scaleFactor);
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void flipView(bool horizontal = true);
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void resetScale();
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void rotateView(qreal rotateAngel);
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void fitInView(const QRectF &rect, Qt::AspectRatioMode aspectRadioMode = Qt::IgnoreAspectRatio);
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void checkAndDoFitInView(bool markItOnAnyway = true);
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signals:
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void navigatorViewRequired(bool required, qreal angle);
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void viewportRectChanged();
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void requestGallery(const QString &filePath);
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public slots:
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void toggleCheckerboard(bool invertCheckerboardColor = false);
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private:
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void mousePressEvent(QMouseEvent * event) override;
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void mouseMoveEvent(QMouseEvent * event) override;
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void mouseReleaseEvent(QMouseEvent * event) override;
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void wheelEvent(QWheelEvent *event) override;
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void resizeEvent(QResizeEvent *event) override;
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void dragEnterEvent(QDragEnterEvent *event) override;
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void dragMoveEvent(QDragMoveEvent *event) override;
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void dropEvent(QDropEvent *event) override;
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bool isThingSmallerThanWindowWith(const QTransform &transform) const;
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bool shouldIgnoreMousePressMoveEvent(const QMouseEvent *event) const;
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void setCheckerboardEnabled(bool enabled, bool invertColor = false);
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void applyTransformationModeByScaleFactor();
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void resetWithScaleAndRotate(qreal scaleFactor, qreal rotateAngle);
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bool m_enableFitInView = false;
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bool m_checkerboardEnabled = false;
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bool m_isLastCheckerboardColorInverted = false;
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qreal m_rotateAngle = 0;
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};
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#endif // GRAPHICSVIEW_H
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