/****************************************************************************
**
** Copyright (C) 2022 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
**
******************************************************************************/

#ifndef QPRINTPREVIEWWIDGET_H
#define QPRINTPREVIEWWIDGET_H

#include <QtPrintSupport/qtprintsupportglobal.h>
#include <QtWidgets/qwidget.h>
#include <QtPrintSupport/qprinter.h>

QT_REQUIRE_CONFIG(printpreviewwidget);

QT_BEGIN_NAMESPACE


class QPrintPreviewWidgetPrivate;

class Q_PRINTSUPPORT_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 = nullptr,
                                 Qt::WindowFlags flags = Qt::WindowFlags());
    explicit QPrintPreviewWidget(QWidget *parent = nullptr, Qt::WindowFlags flags = Qt::WindowFlags());
    ~QPrintPreviewWidget();

    qreal zoomFactor() const;
    QPageLayout::Orientation orientation() const;
    ViewMode viewMode() const;
    ZoomMode zoomMode() const;
    int currentPage() const;
    int pageCount() const;
    void setVisible(bool visible) override;

public Q_SLOTS:
    void print();

    void zoomIn(qreal zoom = 1.1);
    void zoomOut(qreal zoom = 1.1);
    void setZoomFactor(qreal zoomFactor);
    void setOrientation(QPageLayout::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:
    Q_PRIVATE_SLOT(d_func(), void _q_fit())
    Q_PRIVATE_SLOT(d_func(), void _q_updateCurrentPage())
};

QT_END_NAMESPACE

#endif // QPRINTPREVIEWWIDGET_H