1 files changed, 74 insertions, 0 deletions

diff --git a/examples/widgets/pdfviewer/mainwindow.cpp b/examples/widgets/pdfviewer/mainwindow.cpp
index e5b29edfd..df0c5a366 100644
--- a/examples/widgets/pdfviewer/mainwindow.cpp
+++ b/examples/widgets/pdfviewer/mainwindow.cpp
@@ -2,10 +2,14 @@
 #include "ui_mainwindow.h"
 
 #include <QFileDialog>
+#include <QLineEdit>
 #include <QMessageBox>
 #include <QPdfDocument>
+#include <QtMath>
 #include "sequentialpagewidget.h"
 
+const qreal zoomMultiplier = qSqrt(2.0);
+
 Q_LOGGING_CATEGORY(lcExample, "qt.examples.pdfviewer")
 
 MainWindow::MainWindow(QWidget *parent)
@@ -13,12 +17,24 @@ MainWindow::MainWindow(QWidget *parent)
     , ui(new Ui::MainWindow)
     , m_doc(new QPdfDocument(this))
     , m_pageWidget(new SequentialPageWidget(this))
+    , m_zoomEdit(new QLineEdit(this))
+    , m_pageEdit(new QLineEdit(this))
 {
     ui->setupUi(this);
     m_pageWidget->setDocument(m_doc);
     ui->scrollArea->setWidget(m_pageWidget);
+    m_zoomEdit->setMaximumWidth(50);
+    m_zoomEdit->setAlignment(Qt::AlignHCenter);
+    ui->mainToolBar->insertWidget(ui->actionZoom_In, m_zoomEdit);
+    m_pageEdit->setMaximumWidth(50);
+    m_pageEdit->setAlignment(Qt::AlignHCenter);
+    ui->mainToolBar->insertWidget(ui->actionGo, m_pageEdit);
     connect(m_pageWidget, SIGNAL(showingPageRange(int,int)),
             this, SLOT(showingPageRange(int,int)), Qt::QueuedConnection);
+    connect(m_pageWidget, SIGNAL(zoomChanged(qreal)),
+            this, SLOT(zoomChanged(qreal)));
+    connect(m_zoomEdit, SIGNAL(returnPressed()), this, SLOT(zoomEdited()));
+    connect(m_pageEdit, SIGNAL(returnPressed()), this, SLOT(on_actionGo_triggered()));
 }
 
 MainWindow::~MainWindow()
@@ -47,6 +63,20 @@ void MainWindow::showingPageRange(int start, int end)
         ui->statusBar->showMessage(tr("showing page %1").arg(start));
     else
         ui->statusBar->showMessage(tr("showing pages %1 to %2").arg(start).arg(end));
+    m_pageEdit->setText(QString::number(end));
+}
+
+void MainWindow::zoomChanged(qreal factor)
+{
+    m_zoomEdit->setText(tr("%1%").arg(factor * 100., 0, 'f', 0));
+}
+
+void MainWindow::zoomEdited()
+{
+    bool ok = false;
+    qreal factor = m_zoomEdit->text().remove(QChar('%')).toDouble(&ok);
+    if (ok)
+        m_pageWidget->setZoom(factor / 100.);
 }
 
 void MainWindow::on_actionOpen_triggered()
@@ -55,3 +85,47 @@ void MainWindow::on_actionOpen_triggered()
     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()
+{
+    m_pageWidget->setZoom(m_pageWidget->zoom() * zoomMultiplier);
+}
+
+void MainWindow::on_actionZoom_Out_triggered()
+{
+    m_pageWidget->setZoom(m_pageWidget->zoom() / zoomMultiplier);
+}
+
+void MainWindow::on_actionGo_triggered()
+{
+    bool ok = false;
+    int page = m_pageEdit->text().toInt(&ok);
+    if (!ok) return;
+    ui->scrollArea->ensureVisible(0, m_pageWidget->yForPage(page));
+}
+
+void MainWindow::on_actionPrevious_Page_triggered()
+{
+    ui->scrollArea->ensureVisible(0, m_pageWidget->yForPage(m_pageWidget->topPageShowing() - 1));
+}
+
+void MainWindow::on_actionNext_Page_triggered()
+{
+    ui->scrollArea->ensureVisible(0, m_pageWidget->yForPage(m_pageWidget->bottomPageShowing() + 1));
+}