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