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// 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>
#include <QtWidgets/qboxlayout.h>
using namespace Qt::StringLiterals;
QT_BEGIN_NAMESPACE
/*!
\class QPdfPageSelector
\inmodule QtPdf
\since 6.6
\brief A widget for selecting a PDF page.
QPdfPageSelector is a widget for selecting a page label from a
QPdfDocument.
\sa QPdfDocument::pageLabel()
*/
/*!
Constructs a PDF page selector with parent widget \a parent.
*/
QPdfPageSelector::QPdfPageSelector(QWidget *parent)
: QWidget(parent), d_ptr(new QPdfPageSelectorPrivate)
{
Q_D(QPdfPageSelector);
d->spinBox = new QPdfPageSelectorSpinBox(this);
d->spinBox->setObjectName(u"_q_spinBox"_s);
auto vlay = new QVBoxLayout(this);
vlay->setContentsMargins({});
vlay->addWidget(d->spinBox);
connect(d->spinBox, &QPdfPageSelectorSpinBox::_q_documentChanged,
this, &QPdfPageSelector::documentChanged);
connect(d->spinBox, &QSpinBox::valueChanged, this, &QPdfPageSelector::currentPageChanged);
connect(d->spinBox, &QSpinBox::textChanged, this, &QPdfPageSelector::currentPageLabelChanged);
}
/*!
Destroys the page selector.
*/
QPdfPageSelector::~QPdfPageSelector()
= default;
/*!
\property QPdfPageSelector::document
This property holds the document to be viewed.
*/
void QPdfPageSelector::setDocument(QPdfDocument *doc)
{
Q_D(QPdfPageSelector);
d->spinBox->setDocument(doc);
}
QPdfDocument *QPdfPageSelector::document() const
{
Q_D(const QPdfPageSelector);
return d->spinBox->document();
}
/*!
\property QPdfPageSelector::currentPage
This property holds the index (\c{0}-based) of the current page in the
document.
*/
int QPdfPageSelector::currentPage() const
{
Q_D(const QPdfPageSelector);
return d->spinBox->value();
}
void QPdfPageSelector::setCurrentPage(int index)
{
Q_D(QPdfPageSelector);
d->spinBox->setValue(index);
}
/*!
\property QPdfPageSelector::currentPageLabel
This property holds the page label corresponding to the current page
in the document.
This is the text presented to the user.
\sa QPdfDocument::pageLabel()
*/
QString QPdfPageSelector::currentPageLabel() const
{
Q_D(const QPdfPageSelector);
return d->spinBox->text();
}
//
// QPdfPageSelectorSpinBox:
//
void QPdfPageSelectorSpinBox::documentStatusChanged()
{
if (m_document && m_document->status() == QPdfDocument::Status::Ready) {
setMaximum(m_document->pageCount());
setValue(0);
}
}
void QPdfPageSelectorSpinBox::setDocument(QPdfDocument *document)
{
if (m_document == document)
return;
if (m_document)
disconnect(m_documentStatusChangedConnection);
m_document = document;
emit _q_documentChanged(document);
if (m_document) {
m_documentStatusChangedConnection =
connect(m_document.get(), &QPdfDocument::statusChanged,
this, &QPdfPageSelectorSpinBox::documentStatusChanged);
}
documentStatusChanged();
}
QPdfPageSelectorSpinBox::QPdfPageSelectorSpinBox(QWidget *parent)
: QSpinBox(parent)
{
}
QPdfPageSelectorSpinBox::~QPdfPageSelectorSpinBox()
= default;
int QPdfPageSelectorSpinBox::valueFromText(const QString &text) const
{
if (!m_document)
return 0;
return m_document->pageIndexForLabel(text.trimmed());
}
QString QPdfPageSelectorSpinBox::textFromValue(int value) const
{
if (!m_document)
return {};
return m_document->pageLabel(value);
}
QValidator::State QPdfPageSelectorSpinBox::validate(QString &text, int &pos) const
{
Q_UNUSED(pos);
return valueFromText(text) >= 0 ? QValidator::Acceptable : QValidator::Intermediate;
}
QT_END_NAMESPACE
#include "moc_qpdfpageselector_p.cpp"
#include "moc_qpdfpageselector.cpp"
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