/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QtPDF module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL3$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPLv3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or later as published by the Free
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** Software Foundation and appearing in the file LICENSE.GPL included in
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** the packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 2.0 requirements will be
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** met: http://www.gnu.org/licenses/gpl-2.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "mainwindow.h"
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#include "ui_mainwindow.h"
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#include "pageselector.h"
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#include "zoomselector.h"
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#include <QFileDialog>
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#include <QMessageBox>
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#include <qpdfbookmarkmodel.h>
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#include <qpdfdocument.h>
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#include <qpdfpagenavigation.h>
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#include <QtMath>
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const qreal zoomMultiplier = qSqrt(2.0);
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Q_LOGGING_CATEGORY(lcExample, "qt.examples.pdfviewer")
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MainWindow::MainWindow(QWidget *parent)
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: QMainWindow(parent)
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, ui(new Ui::MainWindow)
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, m_zoomSelector(new ZoomSelector(this))
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, m_pageSelector(new PageSelector(this))
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, m_document(new QPdfDocument(this))
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{
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ui->setupUi(this);
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m_zoomSelector->setMaximumWidth(150);
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ui->mainToolBar->insertWidget(ui->actionZoom_In, m_zoomSelector);
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m_pageSelector->setMaximumWidth(150);
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ui->mainToolBar->addWidget(m_pageSelector);
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m_pageSelector->setPageNavigation(ui->pdfView->pageNavigation());
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connect(m_zoomSelector, &ZoomSelector::zoomModeChanged, ui->pdfView, &QPdfView::setZoomMode);
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connect(m_zoomSelector, &ZoomSelector::zoomFactorChanged, ui->pdfView, &QPdfView::setZoomFactor);
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m_zoomSelector->reset();
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QPdfBookmarkModel *bookmarkModel = new QPdfBookmarkModel(this);
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bookmarkModel->setDocument(m_document);
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ui->bookmarkView->setModel(bookmarkModel);
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connect(ui->bookmarkView, SIGNAL(activated(QModelIndex)), this, SLOT(bookmarkSelected(QModelIndex)));
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ui->tabWidget->setTabEnabled(1, false); // disable 'Pages' tab for now
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ui->pdfView->setDocument(m_document);
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connect(ui->pdfView, &QPdfView::zoomFactorChanged,
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m_zoomSelector, &ZoomSelector::setZoomFactor);
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}
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MainWindow::~MainWindow()
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{
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delete ui;
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}
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void MainWindow::open(const QUrl &docLocation)
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{
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if (docLocation.isLocalFile()) {
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m_document->load(docLocation.toLocalFile());
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const auto documentTitle = m_document->metaData(QPdfDocument::Title).toString();
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setWindowTitle(!documentTitle.isEmpty() ? documentTitle : QStringLiteral("PDF Viewer"));
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} else {
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qCDebug(lcExample) << docLocation << "is not a valid local file";
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QMessageBox::critical(this, tr("Failed to open"), tr("%1 is not a valid local file").arg(docLocation.toString()));
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}
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qCDebug(lcExample) << docLocation;
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}
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void MainWindow::bookmarkSelected(const QModelIndex &index)
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{
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if (!index.isValid())
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return;
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const int page = index.data(QPdfBookmarkModel::PageNumberRole).toInt();
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ui->pdfView->pageNavigation()->setCurrentPage(page);
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}
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void MainWindow::on_actionOpen_triggered()
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{
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QUrl toOpen = QFileDialog::getOpenFileUrl(this, tr("Choose a PDF"), QUrl(), "Portable Documents (*.pdf)");
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if (toOpen.isValid())
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open(toOpen);
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}
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void MainWindow::on_actionQuit_triggered()
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{
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QApplication::quit();
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}
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void MainWindow::on_actionAbout_triggered()
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{
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QMessageBox::about(this, tr("About PdfViewer"),
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tr("An example using QPdfDocument"));
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}
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void MainWindow::on_actionAbout_Qt_triggered()
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{
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QMessageBox::aboutQt(this);
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}
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void MainWindow::on_actionZoom_In_triggered()
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{
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ui->pdfView->setZoomFactor(ui->pdfView->zoomFactor() * zoomMultiplier);
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}
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void MainWindow::on_actionZoom_Out_triggered()
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{
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ui->pdfView->setZoomFactor(ui->pdfView->zoomFactor() / zoomMultiplier);
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}
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void MainWindow::on_actionPrevious_Page_triggered()
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{
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ui->pdfView->pageNavigation()->goToPreviousPage();
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}
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void MainWindow::on_actionNext_Page_triggered()
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{
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ui->pdfView->pageNavigation()->goToNextPage();
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}
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void MainWindow::on_actionContinuous_triggered()
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{
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ui->pdfView->setPageMode(ui->actionContinuous->isChecked() ? QPdfView::MultiPage : QPdfView::SinglePage);
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}
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