qprintpreviewwidget.h

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#ifndef QPRINTPREVIEWWIDGET_H
#define QPRINTPREVIEWWIDGET_H

#include <QtGui/qwidget.h>
#include <QtGui/qprinter.h>

#ifndef QT_NO_PRINTPREVIEWWIDGET

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Gui)

class QPrintPreviewWidgetPrivate;

class Q_GUI_EXPORT QPrintPreviewWidget : public QWidget
{
    Q_OBJECT
    Q_DECLARE_PRIVATE(QPrintPreviewWidget)
public:

    enum ViewMode {
        SinglePageView,
        FacingPagesView,
        AllPagesView
    };

    enum ZoomMode {
        CustomZoom,
        FitToWidth,
        FitInView
    };

    explicit QPrintPreviewWidget(QPrinter *printer, QWidget *parent = 0, Qt::WindowFlags flags = 0);
    explicit QPrintPreviewWidget(QWidget *parent = 0, Qt::WindowFlags flags = 0);
    ~QPrintPreviewWidget();

    qreal zoomFactor() const;
    QPrinter::Orientation orientation() const;
    ViewMode viewMode() const;
    ZoomMode zoomMode() const;
    int currentPage() const;
#ifdef QT_DEPRECATED
    QT_DEPRECATED int numPages() const;
#endif
    int pageCount() const;
    void setVisible(bool visible);

public Q_SLOTS:
    void print();

    void zoomIn(qreal zoom = 1.1);
    void zoomOut(qreal zoom = 1.1);
    void setZoomFactor(qreal zoomFactor);
    void setOrientation(QPrinter::Orientation orientation);
    void setViewMode(ViewMode viewMode);
    void setZoomMode(ZoomMode zoomMode);
    void setCurrentPage(int pageNumber);

    void fitToWidth();
    void fitInView();
    void setLandscapeOrientation();
    void setPortraitOrientation();
    void setSinglePageViewMode();
    void setFacingPagesViewMode();
    void setAllPagesViewMode();

    void updatePreview();

Q_SIGNALS:
    void paintRequested(QPrinter *printer);
    void previewChanged();

private:
    void *dummy; // ### remove in Qt 5.0
    Q_PRIVATE_SLOT(d_func(), void _q_fit())
    Q_PRIVATE_SLOT(d_func(), void _q_updateCurrentPage())
};

QT_END_NAMESPACE

QT_END_HEADER

#endif // QT_NO_PRINTPREVIEWWIDGET
#endif // QPRINTPREVIEWWIDGET_H