qprintpreviewdialog.cpp

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#include "qprintpreviewdialog.h"
#include "qprintpreviewwidget.h"
#include <private/qprinter_p.h>
#include "private/qdialog_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 <QtGui/qmainwindow.h>
#include <QtGui/qtoolbar.h>
#include <QtGui/qformlayout.h>
#include <QtCore/QCoreApplication>

#include <math.h>

#ifndef QT_NO_PRINTPREVIEWDIALOG

QT_BEGIN_NAMESPACE

namespace {
class QPrintPreviewMainWindow : public QMainWindow
{
public:
    QPrintPreviewMainWindow(QWidget *parent) : QMainWindow(parent) {}
    QMenu *createPopupMenu() { return 0; }
};

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 : public QDialogPrivate
{
    Q_DECLARE_PUBLIC(QPrintPreviewDialog)
public:
    QPrintPreviewDialogPrivate()
        : 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();

    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;
#if defined(Q_WS_MAC) && !defined(QT_MAC_USE_COCOA)
    QAction *closeAction;
#endif

    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();

    pageNumEdit = new LineEdit;
    pageNumEdit->setAlignment(Qt::AlignRight);
    pageNumEdit->setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));
    pageNumLabel = new QLabel;
    QObject::connect(pageNumEdit, SIGNAL(editingFinished()), q, SLOT(_q_pageNumEdited()));

    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()));

    QPrintPreviewMainWindow *mw = new QPrintPreviewMainWindow(q);
    QToolBar *toolbar = new QToolBar(mw);
    toolbar->addAction(fitWidthAction);
    toolbar->addAction(fitPageAction);
    toolbar->addSeparator();
    toolbar->addWidget(zoomFactor);
    toolbar->addAction(zoomOutAction);
    toolbar->addAction(zoomInAction);
    toolbar->addSeparator();
    toolbar->addAction(portraitAction);
    toolbar->addAction(landscapeAction);
    toolbar->addSeparator();
    toolbar->addAction(firstPageAction);
    toolbar->addAction(prevPageAction);

    // this is to ensure the label text and the editor text are
    // aligned in all styles - the extra QVBoxLayout is a workaround
    // for bug in QFormLayout
    QWidget *pageEdit = new QWidget(toolbar);
    QVBoxLayout *vboxLayout = new QVBoxLayout;
    vboxLayout->setContentsMargins(0, 0, 0, 0);
#ifdef Q_WS_MAC
    // We query the widgets about their size and then we fix the size.
    // This should do the trick for the laying out part...
    QSize pageNumEditSize, pageNumLabelSize;
    pageNumEditSize = pageNumEdit->minimumSizeHint();
    pageNumLabelSize = pageNumLabel->minimumSizeHint();
    pageNumEdit->resize(pageNumEditSize);
    pageNumLabel->resize(pageNumLabelSize);
#endif
    QFormLayout *formLayout = new QFormLayout;
#ifdef Q_WS_MAC
    // We have to change the growth policy in Mac.
    formLayout->setFieldGrowthPolicy(QFormLayout::AllNonFixedFieldsGrow);
#endif
    formLayout->setWidget(0, QFormLayout::LabelRole, pageNumEdit);
    formLayout->setWidget(0, QFormLayout::FieldRole, pageNumLabel);
    vboxLayout->addLayout(formLayout);
    vboxLayout->setAlignment(Qt::AlignVCenter);
    pageEdit->setLayout(vboxLayout);
    toolbar->addWidget(pageEdit);

    toolbar->addAction(nextPageAction);
    toolbar->addAction(lastPageAction);
    toolbar->addSeparator();
    toolbar->addAction(singleModeAction);
    toolbar->addAction(facingModeAction);
    toolbar->addAction(overviewModeAction);
    toolbar->addSeparator();
    toolbar->addAction(pageSetupAction);
    toolbar->addAction(printAction);
#if defined(Q_WS_MAC) && !defined(QT_MAC_USE_COCOA)
    toolbar->addAction(closeAction);
#endif

    // Cannot use the actions' triggered signal here, since it doesn't autorepeat
    QToolButton *zoomInButton = static_cast<QToolButton *>(toolbar->widgetForAction(zoomInAction));
    QToolButton *zoomOutButton = static_cast<QToolButton *>(toolbar->widgetForAction(zoomOutAction));
    zoomInButton->setAutoRepeat(true);
    zoomInButton->setAutoRepeatInterval(200);
    zoomInButton->setAutoRepeatDelay(200);
    zoomOutButton->setAutoRepeat(true);
    zoomOutButton->setAutoRepeatInterval(200);
    zoomOutButton->setAutoRepeatDelay(200);
    QObject::connect(zoomInButton, SIGNAL(clicked()), q, SLOT(_q_zoomIn()));
    QObject::connect(zoomOutButton, SIGNAL(clicked()), q, SLOT(_q_zoomOut()));

    mw->addToolBar(toolbar);
    mw->setCentralWidget(preview);
    // QMainWindows are always created as top levels, force it to be a
    // plain widget
    mw->setParent(q, Qt::Widget);

    QVBoxLayout *topLayout = new QVBoxLayout;
    topLayout->addWidget(mw);
    topLayout->setMargin(0);
    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
        )
        pageSetupAction->setEnabled(false);
    preview->setFocus();
}

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"));
    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()));
#if defined(Q_WS_MAC) && !defined(QT_MAC_USE_COCOA)
    closeAction = printerGroup->addAction(QCoreApplication::translate("QPrintPreviewDialog", "Close"));
    QObject::connect(closeAction, SIGNAL(triggered(bool)), q, SLOT(reject()));
#endif

    // 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->pageCount();
    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->pageCount();
    int maxChars = QString::number(numPages).length();
    pageNumLabel->setText(QString::fromLatin1("/ %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->pageCount());
    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(),
                                                        QLatin1Char('*') + 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::fromLatin1("%1%").arg(factor));
        setFitting(false);
    }
}


QPrintPreviewDialog::QPrintPreviewDialog(QPrinter* printer, QWidget *parent, Qt::WindowFlags flags)
    : QDialog(*new QPrintPreviewDialogPrivate, parent, flags)
{
    Q_D(QPrintPreviewDialog);
    d->init(printer);
}

QPrintPreviewDialog::QPrintPreviewDialog(QWidget *parent, Qt::WindowFlags f)
    : QDialog(*new QPrintPreviewDialogPrivate, parent, f)
{
    Q_D(QPrintPreviewDialog);
    d->init();
}

QPrintPreviewDialog::~QPrintPreviewDialog()
{
    Q_D(QPrintPreviewDialog);
    if (d->ownPrinter)
        delete d->printer;
    delete d->printDialog;
}

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);
}

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();
}

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();
}

QPrinter *QPrintPreviewDialog::printer()
{
    Q_D(QPrintPreviewDialog);
    return d->printer;
}

QT_END_NAMESPACE

#include "moc_qprintpreviewdialog.cpp"
#include "qprintpreviewdialog.moc"

#endif // QT_NO_PRINTPREVIEWDIALOG