qpdfpageselector.cpp

Go to the documentation of this file.

// 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
 
#include "qpdfpageselector.h"
#include "qpdfpageselector_p.h"
 
#include <QPdfDocument>
 
QT_BEGIN_NAMESPACE
 
QPdfPageSelectorPrivate::QPdfPageSelectorPrivate(QPdfPageSelector *q)
    : q_ptr(q)
{
}
 
void QPdfPageSelectorPrivate::documentStatusChanged()
{
    Q_Q(QPdfPageSelector);
    if (!document.isNull() && document->status() == QPdfDocument::Status::Ready) {
        q->setMaximum(document->pageCount());
        q->setValue(0);
    }
}
 
QPdfPageSelector::QPdfPageSelector(QWidget *parent)
    : QSpinBox(parent)
    , d_ptr(new QPdfPageSelectorPrivate(this))
{
}
 
QPdfPageSelector::~QPdfPageSelector()
{
}
 
void QPdfPageSelector::setDocument(QPdfDocument *document)
{
    Q_D(QPdfPageSelector);
 
    if (d->document == document)
        return;
 
    if (d->document)
        disconnect(d->documentStatusChangedConnection);
 
    d->document = document;
    emit documentChanged(d->document);
 
    if (d->document)
        d->documentStatusChangedConnection =
                connect(d->document.data(), &QPdfDocument::statusChanged, this,
                        [d](){ d->documentStatusChanged(); });
 
    d->documentStatusChanged();
}
 
QPdfDocument *QPdfPageSelector::document() const
{
    Q_D(const QPdfPageSelector);
 
    return d->document;
}
 
int QPdfPageSelector::valueFromText(const QString &text) const
{
    Q_D(const QPdfPageSelector);
    if (d->document.isNull())
        return 0;
 
    return d->document->pageIndexForLabel(text);
}
 
QString QPdfPageSelector::textFromValue(int value) const
{
    Q_D(const QPdfPageSelector);
    if (d->document.isNull())
        return {};
 
    return d->document->pageLabel(value);
}
 
QT_END_NAMESPACE
 
#include "moc_qpdfpageselector.cpp"