qpdfview.h

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// Copyright (C) 2017 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Tobias König <tobias.koenig@kdab.com>
// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QPDFVIEW_H
#define QPDFVIEW_H
 
#include <QtPdf/QPdfLink>
#include <QtPdfWidgets/qtpdfwidgetsglobal.h>
#include <QtWidgets/qabstractscrollarea.h>
 
QT_BEGIN_NAMESPACE
 
class QPdfDocument;
class QPdfPageNavigator;
class QPdfSearchModel;
class QPdfViewPrivate;
 
class Q_PDF_WIDGETS_EXPORT QPdfView : public QAbstractScrollArea
{
    Q_OBJECT
 
    Q_PROPERTY(QPdfDocument* document READ document WRITE setDocument NOTIFY documentChanged)
 
    Q_PROPERTY(PageMode pageMode READ pageMode WRITE setPageMode NOTIFY pageModeChanged)
    Q_PROPERTY(ZoomMode zoomMode READ zoomMode WRITE setZoomMode NOTIFY zoomModeChanged)
    Q_PROPERTY(qreal zoomFactor READ zoomFactor WRITE setZoomFactor NOTIFY zoomFactorChanged)
 
    Q_PROPERTY(int pageSpacing READ pageSpacing WRITE setPageSpacing NOTIFY pageSpacingChanged)
    Q_PROPERTY(QMargins documentMargins READ documentMargins WRITE setDocumentMargins NOTIFY documentMarginsChanged)
 
    Q_PROPERTY(QPdfSearchModel* searchModel READ searchModel WRITE setSearchModel NOTIFY searchModelChanged)
    Q_PROPERTY(int currentSearchResultIndex READ currentSearchResultIndex WRITE setCurrentSearchResultIndex NOTIFY currentSearchResultIndexChanged)
 
public:
    enum class PageMode
    {
        SinglePage,
        MultiPage
    };
    Q_ENUM(PageMode)
 
    enum class ZoomMode
    {
        Custom,
        FitToWidth,
        FitInView
    };
    Q_ENUM(ZoomMode)
 
    QPdfView() : QPdfView(nullptr) {}
    explicit QPdfView(QWidget *parent);
    ~QPdfView();
 
    void setDocument(QPdfDocument *document);
    QPdfDocument *document() const;
 
    QPdfSearchModel *searchModel() const;
    void setSearchModel(QPdfSearchModel *searchModel);
 
    int currentSearchResultIndex() const;
 
    QPdfPageNavigator *pageNavigator() const;
 
    PageMode pageMode() const;
    ZoomMode zoomMode() const;
    qreal zoomFactor() const;
 
    int pageSpacing() const;
    void setPageSpacing(int spacing);
 
    QMargins documentMargins() const;
    void setDocumentMargins(QMargins margins);
 
public Q_SLOTS:
    void setPageMode(QPdfView::PageMode mode);
    void setZoomMode(QPdfView::ZoomMode mode);
    void setZoomFactor(qreal factor);
    void setCurrentSearchResultIndex(int currentResult);
 
Q_SIGNALS:
    void documentChanged(QPdfDocument *document);
    void pageModeChanged(QPdfView::PageMode pageMode);
    void zoomModeChanged(QPdfView::ZoomMode zoomMode);
    void zoomFactorChanged(qreal zoomFactor);
    void pageSpacingChanged(int pageSpacing);
    void documentMarginsChanged(QMargins documentMargins);
    void searchModelChanged(QPdfSearchModel *searchModel);
    void currentSearchResultIndexChanged(int currentResult);
 
protected:
    void paintEvent(QPaintEvent *event) override;
    void resizeEvent(QResizeEvent *event) override;
    void scrollContentsBy(int dx, int dy) override;
    void mousePressEvent(QMouseEvent *event) override;
    void mouseMoveEvent(QMouseEvent *event) override;
    void mouseReleaseEvent(QMouseEvent *event) override;
 
private:
    Q_DECLARE_PRIVATE(QPdfView)
    QScopedPointer<QPdfViewPrivate> d_ptr;
};
 
QT_END_NAMESPACE
 
#endif // QPDFVIEW_H