/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtGui module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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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 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL 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 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include "qpagesetupdialog.h"+
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+
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#include <qhash.h>+
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#include <private/qapplication_p.h>+
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#include <private/qprintengine_mac_p.h>+
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#include <private/qabstractpagesetupdialog_p.h>+
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+
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#ifndef QT_NO_PRINTDIALOG+
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+
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QT_USE_NAMESPACE+
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+
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@class QCocoaPageLayoutDelegate;+
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+
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@interface QCocoaPageLayoutDelegate : NSObject {+
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    QMacPrintEnginePrivate *pe;+
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}+
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- (id)initWithMacPrintEngine:(QMacPrintEnginePrivate *)printEngine;+
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- (void)pageLayoutDidEnd:(NSPageLayout *)pageLayout+
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        returnCode:(int)returnCode contextInfo:(void *)contextInfo;+
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@end+
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+
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@implementation QCocoaPageLayoutDelegate+
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- (id)initWithMacPrintEngine:(QMacPrintEnginePrivate *)printEngine;+
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{+
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    self = [super init];+
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    if (self) {+
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        pe = printEngine;+
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    }+
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    return self;+
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+
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}+
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- (void)pageLayoutDidEnd:(NSPageLayout *)pageLayout+
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        returnCode:(int)returnCode contextInfo:(void *)contextInfo+
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{+
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    Q_UNUSED(pageLayout);+
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    QPageSetupDialog *dialog = static_cast<QPageSetupDialog *>(contextInfo);+
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    if (returnCode == NSOKButton) {+
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        PMRect paperRect;+
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        PMGetUnadjustedPaperRect(pe->format, &paperRect);+
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        pe->customSize = QSizeF(paperRect.right - paperRect.left,+
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                                paperRect.bottom - paperRect.top);+
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    }+
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    dialog->done((returnCode == NSOKButton) ? QDialog::Accepted : QDialog::Rejected);+
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}+
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@end+
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+
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QT_BEGIN_NAMESPACE+
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+
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extern void macStartInterceptWindowTitle(QWidget *window);+
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extern void macStopInterceptWindowTitle();+
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+
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class QPageSetupDialogPrivate : public QAbstractPageSetupDialogPrivate+
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{+
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    Q_DECLARE_PUBLIC(QPageSetupDialog)+
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+
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public:+
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    QPageSetupDialogPrivate() : ep(0)+
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#ifndef QT_MAC_USE_COCOA+
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    ,upp(0)+
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#else+
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    ,pageLayout(0)+
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#endif+
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    {}+
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+
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    ~QPageSetupDialogPrivate() {+
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#ifndef QT_MAC_USE_COCOA+
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        if (upp) {+
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            DisposePMSheetDoneUPP(upp);+
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            upp = 0;+
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        }+
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        QHash<PMPrintSession, QPageSetupDialogPrivate *>::iterator it = sheetCallbackMap.begin();+
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        while (it != sheetCallbackMap.end()) {+
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            if (it.value() == this) {+
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                it = sheetCallbackMap.erase(it);+
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            } else {+
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                ++it;+
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            }+
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        }+
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#endif+
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    }+
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+
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#ifndef QT_MAC_USE_COCOA+
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    void openCarbonPageLayout(Qt::WindowModality modality);+
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    void closeCarbonPageLayout();+
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    static void pageSetupDialogSheetDoneCallback(PMPrintSession printSession, WindowRef /*documentWindow*/, Boolean accepted) {+
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        QPageSetupDialogPrivate *priv = sheetCallbackMap.value(printSession);+
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        if (!priv) {+
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            qWarning("%s:%d: QPageSetupDialog::exec: Could not retrieve data structure, "+
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                     "you most likely now have an infinite modal loop", __FILE__, __LINE__);+
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            return;+
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        }+
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        priv->q_func()->done(accepted ? QDialog::Accepted : QDialog::Rejected);+
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    }+
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#else+
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    void openCocoaPageLayout(Qt::WindowModality modality);+
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    void closeCocoaPageLayout();+
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#endif+
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+
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    QMacPrintEnginePrivate *ep;+
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#ifndef QT_MAC_USE_COCOA+
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    PMSheetDoneUPP upp;+
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    static QHash<PMPrintSession, QPageSetupDialogPrivate*> sheetCallbackMap;+
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#else+
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    NSPageLayout *pageLayout;+
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#endif+
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};+
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+
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#ifndef QT_MAC_USE_COCOA+
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QHash<PMPrintSession, QPageSetupDialogPrivate*> QPageSetupDialogPrivate::sheetCallbackMap;+
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void QPageSetupDialogPrivate::openCarbonPageLayout(Qt::WindowModality modality)+
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{+
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    Q_Q(QPageSetupDialog);+
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    // If someone is reusing a QPrinter object, the end released all our old+
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    // information. In this case, we must reinitialize.+
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    if (ep->session == 0)+
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        ep->initialize();+
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+
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    sheetCallbackMap.insert(ep->session, this);+
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    if (modality == Qt::ApplicationModal) {+
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	QWidget modal_widg(0, Qt::Window);+
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        modal_widg.setObjectName(QLatin1String(__FILE__ "__modal_dlg"));+
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        modal_widg.createWinId();+
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	QApplicationPrivate::enterModal(&modal_widg);+
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        QApplicationPrivate::native_modal_dialog_active = true;+
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        Boolean accepted;+
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        PMSessionPageSetupDialog(ep->session, ep->format, &accepted);+
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	QApplicationPrivate::leaveModal(&modal_widg);+
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        QApplicationPrivate::native_modal_dialog_active = false;+
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        pageSetupDialogSheetDoneCallback(ep->session, 0, accepted);+
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    } else {+
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        // Window Modal means that we use a sheet at the moment, there's no other way to do it correctly.+
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        if (!upp)+
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            upp = NewPMSheetDoneUPP(QPageSetupDialogPrivate::pageSetupDialogSheetDoneCallback);+
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        PMSessionUseSheets(ep->session, qt_mac_window_for(q->parentWidget()), upp);+
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        Boolean unused;+
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        PMSessionPageSetupDialog(ep->session, ep->format, &unused);+
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    }+
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}+
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+
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void QPageSetupDialogPrivate::closeCarbonPageLayout()+
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{+
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    // if the margins have changed, we have to use the margins from the new+
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    // PMFormat object+
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    if (q_func()->result() == QDialog::Accepted) {+
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        PMPaper paper;+
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        PMPaperMargins margins;+
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        PMGetPageFormatPaper(ep->format, &paper);+
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        PMPaperGetMargins(paper, &margins);+
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        ep->leftMargin = margins.left;+
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        ep->topMargin = margins.top;+
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        ep->rightMargin = margins.right;+
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        ep->bottomMargin = margins.bottom;+
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+
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	PMRect paperRect;+
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	PMGetUnadjustedPaperRect(ep->format, &paperRect);+
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	ep->customSize = QSizeF(paperRect.right - paperRect.left,+
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				paperRect.bottom - paperRect.top);+
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    }+
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    sheetCallbackMap.remove(ep->session);+
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}+
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#else+
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void QPageSetupDialogPrivate::openCocoaPageLayout(Qt::WindowModality modality)+
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{+
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    Q_Q(QPageSetupDialog);+
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+
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    // If someone is reusing a QPrinter object, the end released all our old+
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    // information. In this case, we must reinitialize.+
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    if (ep->session == 0)+
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        ep->initialize();+
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+
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    macStartInterceptWindowTitle(q);+
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    pageLayout = [NSPageLayout pageLayout];+
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    // Keep a copy to this since we plan on using it for a bit.+
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    [pageLayout retain];+
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    QCocoaPageLayoutDelegate *delegate = [[QCocoaPageLayoutDelegate alloc] initWithMacPrintEngine:ep];+
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+
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    if (modality == Qt::ApplicationModal) {+
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        int rval = [pageLayout runModalWithPrintInfo:ep->printInfo];+
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        [delegate pageLayoutDidEnd:pageLayout returnCode:rval contextInfo:q];+
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    } else {+
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        Q_ASSERT(q->parentWidget());+
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        [pageLayout beginSheetWithPrintInfo:ep->printInfo+
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                             modalForWindow:qt_mac_window_for(q->parentWidget())+
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                                   delegate:delegate+
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                             didEndSelector:@selector(pageLayoutDidEnd:returnCode:contextInfo:)+
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                                contextInfo:q];+
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    }+
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+
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    macStopInterceptWindowTitle();+
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}+
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+
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void QPageSetupDialogPrivate::closeCocoaPageLayout()+
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{+
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    [pageLayout release];+
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    pageLayout = 0;+
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}+
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#endif+
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+
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QPageSetupDialog::QPageSetupDialog(QPrinter *printer, QWidget *parent)+
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    : QAbstractPageSetupDialog(*(new QPageSetupDialogPrivate), printer, parent)+
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{+
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    Q_D(QPageSetupDialog);+
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    d->ep = static_cast<QMacPrintEngine *>(d->printer->paintEngine())->d_func();+
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}+
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+
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QPageSetupDialog::QPageSetupDialog(QWidget *parent)+
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    : QAbstractPageSetupDialog(*(new QPageSetupDialogPrivate), 0, parent)+
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{+
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    Q_D(QPageSetupDialog);+
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    d->ep = static_cast<QMacPrintEngine *>(d->printer->paintEngine())->d_func();+
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}+
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+
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void QPageSetupDialog::setVisible(bool visible)+
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{+
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    Q_D(QPageSetupDialog);+
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+
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    if (d->printer->outputFormat() != QPrinter::NativeFormat)+
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        return;+
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+
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#ifndef QT_MAC_USE_COCOA+
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    bool isCurrentlyVisible = d->sheetCallbackMap.contains(d->ep->session);+
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#else+
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    bool isCurrentlyVisible = (d->pageLayout != 0);+
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#endif+
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    if (!visible == !isCurrentlyVisible)+
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        return;+
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+
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    if (visible) {+
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#ifndef QT_MAC_USE_COCOA+
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        d->openCarbonPageLayout(parentWidget() ? Qt::WindowModal+
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                                               : Qt::ApplicationModal);+
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#else+
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        d->openCocoaPageLayout(parentWidget() ? Qt::WindowModal+
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                                              : Qt::ApplicationModal);+
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#endif+
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        return;+
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    } else {+
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#ifndef QT_MAC_USE_COCOA+
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        d->closeCarbonPageLayout();+
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#else+
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        if (d->pageLayout) {+
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            d->closeCocoaPageLayout();+
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            return;+
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        }+
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#endif+
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    }+
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}+
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+
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int QPageSetupDialog::exec()+
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{+
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    Q_D(QPageSetupDialog);+
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+
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    if (d->printer->outputFormat() != QPrinter::NativeFormat)+
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        return Rejected;+
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+
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#ifndef QT_MAC_USE_COCOA+
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    d->openCarbonPageLayout(Qt::ApplicationModal);+
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    d->closeCarbonPageLayout();+
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#else+
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    QMacCocoaAutoReleasePool pool;+
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    d->openCocoaPageLayout(Qt::ApplicationModal);+
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    d->closeCocoaPageLayout();+
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#endif+
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    return result();+
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}+
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+
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QT_END_NAMESPACE+
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+
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#endif QT_NO_PRINTDIALOG+
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