Long live Qt for S60!

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diff --git a/src/gui/dialogs/qprintpreviewdialog.cpp b/src/gui/dialogs/qprintpreviewdialog.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 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 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qprintpreviewdialog.h"
+#include "qprintpreviewwidget.h"
+#include <private/qprinter_p.h>
+
+#include <QtGui/qaction.h>
+#include <QtGui/qboxlayout.h>
+#include <QtGui/qcombobox.h>
+#include <QtGui/qlabel.h>
+#include <QtGui/qlineedit.h>
+#include <QtGui/qpagesetupdialog.h>
+#include <QtGui/qprinter.h>
+#include <QtGui/qstyle.h>
+#include <QtGui/qtoolbutton.h>
+#include <QtGui/qvalidator.h>
+#include <QtGui/qfiledialog.h>
+#include <QtCore/QCoreApplication>
+
+#include <math.h>
+
+#ifndef QT_NO_PRINTPREVIEWDIALOG
+
+QT_BEGIN_NAMESPACE
+
+namespace {
+class ZoomFactorValidator : public QDoubleValidator
+{
+public:
+    ZoomFactorValidator(QObject* parent)
+        : QDoubleValidator(parent) {}
+    ZoomFactorValidator(qreal bottom, qreal top, int decimals, QObject *parent)
+        : QDoubleValidator(bottom, top, decimals, parent) {}
+
+    State validate(QString &input, int &pos) const
+    {
+        bool replacePercent = false;
+        if (input.endsWith(QLatin1Char('%'))) {
+            input = input.left(input.length() - 1);
+            replacePercent = true;
+        }
+        State state = QDoubleValidator::validate(input, pos);
+        if (replacePercent)
+            input += QLatin1Char('%');
+        const int num_size = 4;
+        if (state == Intermediate) {
+            int i = input.indexOf(QLocale::system().decimalPoint());
+            if ((i == -1 && input.size() > num_size)
+                || (i != -1 && i > num_size))
+                return Invalid;
+        }
+        return state;
+    }
+};
+
+class LineEdit : public QLineEdit
+{
+    Q_OBJECT
+public:
+    LineEdit(QWidget* parent = 0)
+        : QLineEdit(parent)
+    {
+        setContextMenuPolicy(Qt::NoContextMenu);
+        connect(this, SIGNAL(returnPressed()), SLOT(handleReturnPressed()));
+    }
+
+protected:
+    void focusInEvent(QFocusEvent *e)
+    {
+        origText = text();
+        QLineEdit::focusInEvent(e);
+    }
+
+    void focusOutEvent(QFocusEvent *e)
+    {
+        if (isModified() && !hasAcceptableInput())
+            setText(origText);
+        QLineEdit::focusOutEvent(e);
+    }
+
+private slots:
+    void handleReturnPressed()
+    {
+        origText = text();
+    }
+
+private:
+    QString origText;
+};
+} // anonymous namespace
+
+class QPrintPreviewDialogPrivate
+{
+    Q_DECLARE_PUBLIC(QPrintPreviewDialog)
+public:
+    QPrintPreviewDialogPrivate(QPrintPreviewDialog *q)
+        : q_ptr(q), printDialog(0), ownPrinter(false),
+          initialized(false) {}
+
+    // private slots
+    void _q_fit(QAction *action);
+    void _q_zoomIn();
+    void _q_zoomOut();
+    void _q_navigate(QAction *action);
+    void _q_setMode(QAction *action);
+    void _q_pageNumEdited();
+    void _q_print();
+    void _q_pageSetup();
+    void _q_previewChanged();
+    void _q_zoomFactorChanged();
+
+    void init(QPrinter *printer = 0);
+    void populateScene();
+    void layoutPages();
+    void setupActions();
+    void updateNavActions();
+    void setFitting(bool on);
+    bool isFitting();
+    void updatePageNumLabel();
+    void updateZoomFactor();
+
+    QPrintPreviewDialog *q_ptr;
+    QPrintDialog *printDialog;
+    QPrintPreviewWidget *preview;
+    QPrinter *printer;
+    bool ownPrinter;
+    bool initialized;
+
+    // widgets:
+    QLineEdit *pageNumEdit;
+    QLabel *pageNumLabel;
+    QComboBox *zoomFactor;
+
+    // actions:
+    QActionGroup* navGroup;
+    QAction *nextPageAction;
+    QAction *prevPageAction;
+    QAction *firstPageAction;
+    QAction *lastPageAction;
+
+    QActionGroup* fitGroup;
+    QAction *fitWidthAction;
+    QAction *fitPageAction;
+
+    QActionGroup* zoomGroup;
+    QAction *zoomInAction;
+    QAction *zoomOutAction;
+
+    QActionGroup* orientationGroup;
+    QAction *portraitAction;
+    QAction *landscapeAction;
+
+    QActionGroup* modeGroup;
+    QAction *singleModeAction;
+    QAction *facingModeAction;
+    QAction *overviewModeAction;
+
+    QActionGroup *printerGroup;
+    QAction *printAction;
+    QAction *pageSetupAction;
+    QAction *closeAction;
+
+    QPointer<QObject> receiverToDisconnectOnClose;
+    QByteArray memberToDisconnectOnClose;
+};
+
+void QPrintPreviewDialogPrivate::init(QPrinter *_printer)
+{
+    Q_Q(QPrintPreviewDialog);
+
+    if (_printer) {
+        preview = new QPrintPreviewWidget(_printer, q);
+        printer = _printer;
+    } else {
+        ownPrinter = true;
+        printer = new QPrinter;
+        preview = new QPrintPreviewWidget(printer, q);
+    }
+    QObject::connect(preview, SIGNAL(paintRequested(QPrinter *)), q, SIGNAL(paintRequested(QPrinter *)));
+    QObject::connect(preview, SIGNAL(previewChanged()), q, SLOT(_q_previewChanged()));
+    setupActions();
+
+    // Navigation
+    QToolButton* nextPageButton = new QToolButton;
+    nextPageButton->setDefaultAction(nextPageAction);
+    QToolButton* prevPageButton = new QToolButton;
+    prevPageButton->setDefaultAction(prevPageAction);
+    QToolButton* firstPageButton = new QToolButton;
+    firstPageButton->setDefaultAction(firstPageAction);
+    QToolButton* lastPageButton = new QToolButton;
+    lastPageButton->setDefaultAction(lastPageAction);
+
+    pageNumEdit = new LineEdit;
+    pageNumEdit->setAlignment(Qt::AlignRight);
+    pageNumEdit->setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::MinimumExpanding));
+    pageNumLabel = new QLabel;
+    QObject::connect(pageNumEdit, SIGNAL(editingFinished()), q, SLOT(_q_pageNumEdited()));
+
+    QToolButton* fitWidthButton = new QToolButton;
+    fitWidthButton->setDefaultAction(fitWidthAction);
+    QToolButton* fitPageButton = new QToolButton;
+    fitPageButton->setDefaultAction(fitPageAction);
+
+    zoomFactor = new QComboBox;
+    zoomFactor->setEditable(true);
+    zoomFactor->setMinimumContentsLength(7);
+    zoomFactor->setInsertPolicy(QComboBox::NoInsert);
+    LineEdit *zoomEditor = new LineEdit;
+    zoomEditor->setValidator(new ZoomFactorValidator(1, 1000, 1, zoomEditor));
+    zoomFactor->setLineEdit(zoomEditor);
+    static const short factorsX2[] = { 25, 50, 100, 200, 250, 300, 400, 800, 1600 };
+    for (int i = 0; i < int(sizeof(factorsX2) / sizeof(factorsX2[0])); ++i)
+        zoomFactor->addItem(QPrintPreviewDialog::tr("%1%").arg(factorsX2[i] / 2.0));
+    QObject::connect(zoomFactor->lineEdit(), SIGNAL(editingFinished()),
+                     q, SLOT(_q_zoomFactorChanged()));
+    QObject::connect(zoomFactor, SIGNAL(currentIndexChanged(int)),
+                     q, SLOT(_q_zoomFactorChanged()));
+
+    QToolButton* zoomInButton = new QToolButton;
+    zoomInButton->setDefaultAction(zoomInAction);
+    zoomInButton->setAutoRepeat(true);
+    zoomInButton->setAutoRepeatInterval(200);
+    zoomInButton->setAutoRepeatDelay(200);
+
+    QToolButton* zoomOutButton = new QToolButton;
+    zoomOutButton->setDefaultAction(zoomOutAction);
+    zoomOutButton->setAutoRepeat(true);
+    zoomOutButton->setAutoRepeatInterval(200);
+    zoomOutButton->setAutoRepeatDelay(200);
+
+    //Cannot use the actions' triggered signal here, since it doesnt autorepeat
+    QObject::connect(zoomInButton, SIGNAL(clicked()), q, SLOT(_q_zoomIn()));
+    QObject::connect(zoomOutButton, SIGNAL(clicked()), q, SLOT(_q_zoomOut()));
+
+    QToolButton* portraitButton = new QToolButton;
+    portraitButton->setDefaultAction(portraitAction);
+    QToolButton* landscapeButton = new QToolButton;
+    landscapeButton->setDefaultAction(landscapeAction);
+
+    QToolButton* singleModeButton = new QToolButton;
+    singleModeButton->setDefaultAction(singleModeAction);
+    QToolButton* facingModeButton = new QToolButton;
+    facingModeButton->setDefaultAction(facingModeAction);
+    QToolButton* overviewModeButton = new QToolButton;
+    overviewModeButton->setDefaultAction(overviewModeAction);
+
+    QToolButton *printButton = new QToolButton;
+    printButton->setDefaultAction(printAction);
+    QToolButton *pageSetupButton = new QToolButton;
+    pageSetupButton->setDefaultAction(pageSetupAction);
+    QToolButton *closeButton = new QToolButton;
+    closeButton->setDefaultAction(closeAction);
+
+    QHBoxLayout* modeLayout = new QHBoxLayout;
+    modeLayout->setSpacing(0);
+    modeLayout->addWidget(singleModeButton);
+    modeLayout->addWidget(facingModeButton);
+    modeLayout->addWidget(overviewModeButton);
+
+    QHBoxLayout *barLayout = new QHBoxLayout;
+    barLayout->addWidget(fitWidthButton);
+    barLayout->addWidget(fitPageButton);
+    barLayout->addWidget(zoomFactor);
+    barLayout->addWidget(zoomOutButton);
+    barLayout->addWidget(zoomInButton);
+    barLayout->addWidget(portraitButton);
+    barLayout->addWidget(landscapeButton);
+    barLayout->addStretch();
+    barLayout->addWidget(firstPageButton);
+    barLayout->addWidget(prevPageButton);
+    barLayout->addWidget(pageNumEdit);
+    barLayout->addWidget(pageNumLabel);
+    barLayout->addWidget(nextPageButton);
+    barLayout->addWidget(lastPageButton);
+    barLayout->addStretch();
+    barLayout->addLayout(modeLayout);
+    barLayout->addStretch();
+    barLayout->addWidget(pageSetupButton);
+    barLayout->addWidget(printButton);
+    barLayout->addWidget(closeButton);
+
+    QWidget* buttonBar = new QWidget;
+    buttonBar->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Maximum));
+    barLayout->setMargin(0);
+    buttonBar->setLayout(barLayout);
+
+    QVBoxLayout *topLayout = new QVBoxLayout;
+    topLayout->addWidget(buttonBar);
+    topLayout->addWidget(preview);
+    q->setLayout(topLayout);
+
+    QString caption = QCoreApplication::translate("QPrintPreviewDialog", "Print Preview");
+    if (!printer->docName().isEmpty())
+        caption += QString::fromLatin1(": ") + printer->docName();
+    q->setWindowTitle(caption);
+
+    if (!printer->isValid()
+#if defined(Q_WS_WIN) || defined(Q_WS_MAC)
+        || printer->outputFormat() != QPrinter::NativeFormat
+#endif
+        )
+        pageSetupButton->setEnabled(false);
+}
+
+static inline void qt_setupActionIcon(QAction *action, const QLatin1String &name)
+{
+    QLatin1String imagePrefix(":/trolltech/dialogs/qprintpreviewdialog/images/");
+    QIcon icon;
+    icon.addFile(imagePrefix + name + QLatin1String("-24.png"), QSize(24, 24));
+    icon.addFile(imagePrefix + name + QLatin1String("-32.png"), QSize(32, 32));
+    action->setIcon(icon);
+}
+
+void QPrintPreviewDialogPrivate::setupActions()
+{
+    Q_Q(QPrintPreviewDialog);
+
+    // Navigation
+    navGroup = new QActionGroup(q);
+    navGroup->setExclusive(false);
+    nextPageAction = navGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Next page"));
+    prevPageAction = navGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Previous page"));
+    firstPageAction = navGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "First page"));
+    lastPageAction = navGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Last page"));
+    qt_setupActionIcon(nextPageAction, QLatin1String("go-next"));
+    qt_setupActionIcon(prevPageAction, QLatin1String("go-previous"));
+    qt_setupActionIcon(firstPageAction, QLatin1String("go-first"));
+    qt_setupActionIcon(lastPageAction, QLatin1String("go-last"));
+    QObject::connect(navGroup, SIGNAL(triggered(QAction*)), q, SLOT(_q_navigate(QAction*)));
+
+
+    fitGroup = new QActionGroup(q);
+    fitWidthAction = fitGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Fit width"));
+    fitPageAction = fitGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Fit page"));
+    fitWidthAction->setObjectName(QLatin1String("fitWidthAction"));
+    fitPageAction->setObjectName(QLatin1String("fitPageAction"));
+    fitWidthAction->setCheckable(true);
+    fitPageAction->setCheckable(true);
+    qt_setupActionIcon(fitWidthAction, QLatin1String("fit-width"));
+    qt_setupActionIcon(fitPageAction, QLatin1String("fit-page"));
+    QObject::connect(fitGroup, SIGNAL(triggered(QAction*)), q, SLOT(_q_fit(QAction*)));
+
+    // Zoom
+    zoomGroup = new QActionGroup(q);
+    zoomInAction = zoomGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Zoom in"));
+    zoomOutAction = zoomGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Zoom out"));
+    qt_setupActionIcon(zoomInAction, QLatin1String("zoom-in"));
+    qt_setupActionIcon(zoomOutAction, QLatin1String("zoom-out"));
+
+    // Portrait/Landscape
+    orientationGroup = new QActionGroup(q);
+    portraitAction = orientationGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Portrait"));
+    landscapeAction = orientationGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Landscape"));
+    portraitAction->setCheckable(true);
+    landscapeAction->setCheckable(true);
+    qt_setupActionIcon(portraitAction, QLatin1String("layout-portrait"));
+    qt_setupActionIcon(landscapeAction, QLatin1String("layout-landscape"));
+    QObject::connect(portraitAction, SIGNAL(triggered(bool)), preview, SLOT(setPortraitOrientation()));
+    QObject::connect(landscapeAction, SIGNAL(triggered(bool)), preview, SLOT(setLandscapeOrientation()));
+
+    // Display mode
+    modeGroup = new QActionGroup(q);
+    singleModeAction = modeGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Show single page"));
+    facingModeAction = modeGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Show facing pages"));
+    overviewModeAction = modeGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Show overview of all pages"));
+    qt_setupActionIcon(singleModeAction, QLatin1String("view-page-one"));
+    qt_setupActionIcon(facingModeAction, QLatin1String("view-page-sided"));
+    qt_setupActionIcon(overviewModeAction, QLatin1String("view-page-multi"));
+    singleModeAction->setObjectName(QLatin1String("singleModeAction"));
+    facingModeAction->setObjectName(QLatin1String("facingModeAction"));
+    overviewModeAction->setObjectName(QLatin1String("overviewModeAction"));
+
+    singleModeAction->setCheckable(true);
+    facingModeAction->setCheckable(true);
+    overviewModeAction->setCheckable(true);
+    QObject::connect(modeGroup, SIGNAL(triggered(QAction*)), q, SLOT(_q_setMode(QAction*)));
+
+    // Print
+    printerGroup = new QActionGroup(q);
+    printAction = printerGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Print"));
+    pageSetupAction = printerGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Page setup"));
+    closeAction = printerGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Close"));
+    qt_setupActionIcon(printAction, QLatin1String("print"));
+    qt_setupActionIcon(pageSetupAction, QLatin1String("page-setup"));
+    QObject::connect(printAction, SIGNAL(triggered(bool)), q, SLOT(_q_print()));
+    QObject::connect(pageSetupAction, SIGNAL(triggered(bool)), q, SLOT(_q_pageSetup()));
+    QObject::connect(closeAction, SIGNAL(triggered(bool)), q, SLOT(reject()));
+
+    // Initial state:
+    fitPageAction->setChecked(true);
+    singleModeAction->setChecked(true);
+    if (preview->orientation() == QPrinter::Portrait)
+        portraitAction->setChecked(true);
+    else
+        landscapeAction->setChecked(true);
+}
+
+
+bool QPrintPreviewDialogPrivate::isFitting()
+{
+    return (fitGroup->isExclusive()
+            && (fitWidthAction->isChecked() || fitPageAction->isChecked()));
+}
+
+
+void QPrintPreviewDialogPrivate::setFitting(bool on)
+{
+    if (isFitting() == on)
+        return;
+    fitGroup->setExclusive(on);
+    if (on) {
+        QAction* action = fitWidthAction->isChecked() ? fitWidthAction : fitPageAction;
+        action->setChecked(true);
+        if (fitGroup->checkedAction() != action) {
+            // work around exclusitivity problem
+            fitGroup->removeAction(action);
+            fitGroup->addAction(action);
+        }
+    } else {
+        fitWidthAction->setChecked(false);
+        fitPageAction->setChecked(false);
+    }
+}
+
+void QPrintPreviewDialogPrivate::updateNavActions()
+{
+    int curPage = preview->currentPage();
+    int numPages = preview->numPages();
+    nextPageAction->setEnabled(curPage < numPages);
+    prevPageAction->setEnabled(curPage > 1);
+    firstPageAction->setEnabled(curPage > 1);
+    lastPageAction->setEnabled(curPage < numPages);
+    pageNumEdit->setText(QString::number(curPage));
+}
+
+void QPrintPreviewDialogPrivate::updatePageNumLabel()
+{
+    Q_Q(QPrintPreviewDialog);
+
+    int numPages = preview->numPages();
+    int maxChars = QString::number(numPages).length();
+    pageNumLabel->setText(QString(QLatin1String("/ %1")).arg(numPages));
+    int cyphersWidth = q->fontMetrics().width(QString().fill(QLatin1Char('8'), maxChars));
+    int maxWidth = pageNumEdit->minimumSizeHint().width() + cyphersWidth;
+    pageNumEdit->setMinimumWidth(maxWidth);
+    pageNumEdit->setMaximumWidth(maxWidth);
+    pageNumEdit->setValidator(new QIntValidator(1, numPages, pageNumEdit));
+    // any old one will be deleted later along with its parent pageNumEdit
+}
+
+void QPrintPreviewDialogPrivate::updateZoomFactor()
+{
+    zoomFactor->lineEdit()->setText(QString().sprintf("%.1f%%", preview->zoomFactor()*100));
+}
+
+void QPrintPreviewDialogPrivate::_q_fit(QAction* action)
+{
+    setFitting(true);
+    if (action == fitPageAction)
+        preview->fitInView();
+    else
+        preview->fitToWidth();
+}
+
+void QPrintPreviewDialogPrivate::_q_zoomIn()
+{
+    setFitting(false);
+    preview->zoomIn();
+    updateZoomFactor();
+}
+
+void QPrintPreviewDialogPrivate::_q_zoomOut()
+{
+    setFitting(false);
+    preview->zoomOut();
+    updateZoomFactor();
+}
+
+void QPrintPreviewDialogPrivate::_q_pageNumEdited()
+{
+    bool ok = false;
+    int res = pageNumEdit->text().toInt(&ok);
+    if (ok)
+        preview->setCurrentPage(res);
+}
+
+void QPrintPreviewDialogPrivate::_q_navigate(QAction* action)
+{
+    int curPage = preview->currentPage();
+    if (action == prevPageAction)
+        preview->setCurrentPage(curPage - 1);
+    else if (action == nextPageAction)
+        preview->setCurrentPage(curPage + 1);
+    else if (action == firstPageAction)
+        preview->setCurrentPage(1);
+    else if (action == lastPageAction)
+        preview->setCurrentPage(preview->numPages());
+    updateNavActions();
+}
+
+void QPrintPreviewDialogPrivate::_q_setMode(QAction* action)
+{
+    if (action == overviewModeAction) {
+        preview->setViewMode(QPrintPreviewWidget::AllPagesView);
+        setFitting(false);
+        fitGroup->setEnabled(false);
+        navGroup->setEnabled(false);
+        pageNumEdit->setEnabled(false);
+        pageNumLabel->setEnabled(false);
+    } else if (action == facingModeAction) {
+        preview->setViewMode(QPrintPreviewWidget::FacingPagesView);
+    } else {
+        preview->setViewMode(QPrintPreviewWidget::SinglePageView);
+    }
+    if (action == facingModeAction || action == singleModeAction) {
+        fitGroup->setEnabled(true);
+        navGroup->setEnabled(true);
+        pageNumEdit->setEnabled(true);
+        pageNumLabel->setEnabled(true);
+        setFitting(true);
+    }
+}
+
+void QPrintPreviewDialogPrivate::_q_print()
+{
+    Q_Q(QPrintPreviewDialog);
+
+#if defined(Q_WS_WIN) || defined(Q_WS_MAC)
+    if (printer->outputFormat() != QPrinter::NativeFormat) {
+        QString title;
+        QString suffix;
+        if (printer->outputFormat() == QPrinter::PdfFormat) {
+            title = QCoreApplication::translate("QPrintPreviewDialog", "Export to PDF");
+            suffix = QLatin1String(".pdf");
+        } else {
+            title = QCoreApplication::translate("QPrintPreviewDialog", "Export to PostScript");
+            suffix = QLatin1String(".ps");
+        }
+        QString fileName = QFileDialog::getSaveFileName(q, title, printer->outputFileName(),
+                                                        QLatin1String("*") + suffix);
+        if (!fileName.isEmpty()) {
+            if (QFileInfo(fileName).suffix().isEmpty())
+                fileName.append(suffix);
+            printer->setOutputFileName(fileName);
+        }
+        if (!printer->outputFileName().isEmpty())
+            preview->print();
+        q->accept();
+        return;
+    }
+#endif
+
+    if (!printDialog)
+        printDialog = new QPrintDialog(printer, q);
+    if (printDialog->exec() == QDialog::Accepted) {
+        preview->print();
+        q->accept();
+    }
+}
+
+void QPrintPreviewDialogPrivate::_q_pageSetup()
+{
+    Q_Q(QPrintPreviewDialog);
+
+    QPageSetupDialog pageSetup(printer, q);
+    if (pageSetup.exec() == QDialog::Accepted) {
+        // update possible orientation changes
+        if (preview->orientation() == QPrinter::Portrait) {
+            portraitAction->setChecked(true);
+            preview->setPortraitOrientation();
+        }else {
+            landscapeAction->setChecked(true);
+            preview->setLandscapeOrientation();
+        }
+    }
+}
+
+void QPrintPreviewDialogPrivate::_q_previewChanged()
+{
+    updateNavActions();
+    updatePageNumLabel();
+    updateZoomFactor();
+}
+
+void QPrintPreviewDialogPrivate::_q_zoomFactorChanged()
+{
+    QString text = zoomFactor->lineEdit()->text();
+    bool ok;
+    qreal factor = text.remove(QLatin1Char('%')).toFloat(&ok);
+    factor = qMax(qreal(1.0), qMin(qreal(1000.0), factor));
+    if (ok) {
+        preview->setZoomFactor(factor/100.0);
+        zoomFactor->setEditText(QString(QLatin1String("%1%")).arg(factor));
+        setFitting(false);
+    }
+}
+
+///////////////////////////////////////////////////////////////////////////
+
+/*!
+    \class QPrintPreviewDialog
+    \since 4.4
+
+    \brief The QPrintPreviewDialog class provides a dialog for
+    previewing and configuring page layouts for printer output.
+
+    Using QPrintPreviewDialog in your existing application is
+    straightforward:
+
+    \list 1
+    \o Create the QPrintPreviewDialog.
+
+    You can construct a QPrintPreviewDialog with an existing QPrinter
+    object, or you can have QPrintPreviewDialog create one for you,
+    which will be the system default printer.
+
+    \o Connect the paintRequested() signal to a slot.
+
+    When the dialog needs to generate a set of preview pages, the
+    paintRequested() signal will be emitted. You can use the exact
+    same code for the actual printing as for having the preview
+    generated, including calling QPrinter::newPage() to start a new
+    page in the preview. Connect a slot to the paintRequested()
+    signal, where you draw onto the QPrinter object that is passed
+    into the slot.
+
+    \o Call exec().
+
+    Call QPrintPreviewDialog::exec() to show the preview dialog.
+    \endlist
+
+
+    \sa QPrinter, QPrintDialog, QPageSetupDialog, QPrintPreviewWidget
+*/
+
+/*!
+    Constructs a QPrintPreviewDialog based on \a printer and with \a
+    parent as the parent widget. The widget flags \a flags are passed on
+    to the QWidget constructor.
+
+    \sa QWidget::setWindowFlags()
+*/
+QPrintPreviewDialog::QPrintPreviewDialog(QPrinter* printer, QWidget *parent, Qt::WindowFlags flags)
+    : QDialog(parent, flags), d_ptr(new QPrintPreviewDialogPrivate(this))
+{
+    Q_D(QPrintPreviewDialog);
+    d->init(printer);
+}
+
+/*!
+    \overload
+    \fn QPrintPreviewDialog::QPrintPreviewDialog(QWidget *parent, Qt::WindowFlags flags)
+
+    This will create an internal QPrinter object, which will use the
+    system default printer.
+*/
+QPrintPreviewDialog::QPrintPreviewDialog(QWidget *parent, Qt::WindowFlags f)
+    : QDialog(parent, f), d_ptr(new QPrintPreviewDialogPrivate(this))
+{
+    Q_D(QPrintPreviewDialog);
+    d->init();
+}
+
+/*!
+    Destroys the QPrintPreviewDialog.
+*/
+QPrintPreviewDialog::~QPrintPreviewDialog()
+{
+    Q_D(QPrintPreviewDialog);
+    if (d->ownPrinter)
+        delete d->printer;
+    delete d->printDialog;
+    delete d_ptr;
+}
+
+/*!
+    \reimp
+*/
+void QPrintPreviewDialog::setVisible(bool visible)
+{
+    Q_D(QPrintPreviewDialog);
+    // this will make the dialog get a decent default size
+    if (visible && !d->initialized) {
+        d->preview->updatePreview();
+        d->initialized = true;
+    }
+    QDialog::setVisible(visible);
+}
+
+/*!
+    \reimp
+*/
+void QPrintPreviewDialog::done(int result)
+{
+    Q_D(QPrintPreviewDialog);
+    QDialog::done(result);
+    if (d->receiverToDisconnectOnClose) {
+        disconnect(this, SIGNAL(finished(int)),
+                   d->receiverToDisconnectOnClose, d->memberToDisconnectOnClose);
+        d->receiverToDisconnectOnClose = 0;
+    }
+    d->memberToDisconnectOnClose.clear();
+}
+
+/*!
+    \overload
+    \since 4.5
+
+    Opens the dialog and connects its finished(int) signal to the slot specified
+    by \a receiver and \a member.
+
+    The signal will be disconnected from the slot when the dialog is closed.
+*/
+void QPrintPreviewDialog::open(QObject *receiver, const char *member)
+{
+    Q_D(QPrintPreviewDialog);
+    // the int parameter isn't very useful here; we could just as well connect
+    // to reject(), but this feels less robust somehow
+    connect(this, SIGNAL(finished(int)), receiver, member);
+    d->receiverToDisconnectOnClose = receiver;
+    d->memberToDisconnectOnClose = member;
+    QDialog::open();
+}
+
+/*!
+    Returns a pointer to the QPrinter object this dialog is currently
+    operating on.
+*/
+QPrinter *QPrintPreviewDialog::printer()
+{
+    Q_D(QPrintPreviewDialog);
+    return d->printer;
+}
+
+/*!
+    \fn void QPrintPreviewDialog::paintRequested(QPrinter *printer)
+
+    This signal is emitted when the QPrintPreviewDialog needs to generate
+    a set of preview pages.
+
+    The \a printer instance supplied is the paint device onto which you should
+    paint the contents of each page, using the QPrinter instance in the same way
+    as you would when printing directly.
+*/
+
+
+QT_END_NAMESPACE
+
+#include "moc_qprintpreviewdialog.cpp"
+#include "qprintpreviewdialog.moc"
+
+#endif // QT_NO_PRINTPREVIEWDIALOG
+
+