src/gui/kernel/qt_mac_p.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 06 Jul 2010 15:10:48 +0300
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Revision: 201025 Kit: 2010127
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/****************************************************************************
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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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#ifndef QT_MAC_P_H
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#define QT_MAC_P_H
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//
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//  W A R N I N G
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//  -------------
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//
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// This file is not part of the Qt API.  It exists purely as an
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// implementation detail.  This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include "qmacdefines_mac.h"
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#ifdef __OBJC__
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#include <Cocoa/Cocoa.h>
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#ifdef QT_MAC_USE_COCOA
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#include <objc/runtime.h>
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#endif // QT_MAC_USE_COCOA
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#endif
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#include <CoreServices/CoreServices.h>
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#include "QtCore/qglobal.h"
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#include "QtCore/qvariant.h"
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#include "QtCore/qmimedata.h"
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#include "QtCore/qpointer.h"
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#include "private/qcore_mac_p.h"
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#include "QtGui/qpainter.h"
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#include <Carbon/Carbon.h>
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QT_BEGIN_NAMESPACE
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class QWidget;
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class QDragMoveEvent;
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/* Event masks */
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// internal Qt types
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 // Event class for our own Carbon events.
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#if defined(QT_NAMESPACE) && defined(QT_NAMESPACE_MAC_CRC)
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// Take the CRC we generated at configure time. This *may* result in a
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// collision with another value If that is the case, please change the value
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// here to something other than 'Cute'.
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const UInt32 kEventClassQt = QT_NAMESPACE_MAC_CRC;
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#else
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const UInt32 kEventClassQt = 'Cute';
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#endif
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enum {
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    //AE types
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    typeAEClipboardChanged = 1,
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    //types
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    typeQWidget = 1,  /* QWidget *  */
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    //params
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    kEventParamQWidget = 'qwid',   /* typeQWidget */
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    //events
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    kEventQtRequestContext = 13,
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    kEventQtRequestMenubarUpdate = 14,
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    kEventQtRequestShowSheet = 17,
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    kEventQtRequestActivate = 18,
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    kEventQtRequestWindowChange = 20
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};
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// Simple class to manage short-lived regions
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class QMacSmartQuickDrawRegion
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{
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    RgnHandle qdRgn;
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    Q_DISABLE_COPY(QMacSmartQuickDrawRegion)
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public:
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    explicit QMacSmartQuickDrawRegion(RgnHandle rgn) : qdRgn(rgn) {}
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    ~QMacSmartQuickDrawRegion() {
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        extern void qt_mac_dispose_rgn(RgnHandle); // qregion_mac.cpp
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        qt_mac_dispose_rgn(qdRgn);
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    }
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    operator RgnHandle() {
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        return qdRgn;
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    }
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};
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// Class for chaining to gether a bunch of fades. It pretty much is only used for qmenu fading.
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class QMacWindowFader
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{
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    QWidgetList m_windowsToFade;
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    float m_duration;
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    Q_DISABLE_COPY(QMacWindowFader)
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public:
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    QMacWindowFader(); // PLEASE DON'T CALL THIS.
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    static QMacWindowFader *currentFader();
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    void registerWindowToFade(QWidget *window);
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    void setFadeDuration(float durationInSecs) { m_duration = durationInSecs; }
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    float fadeDuration() const { return m_duration; }
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    void performFade();
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};
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class Q_GUI_EXPORT QMacCocoaAutoReleasePool
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{
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private:
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    void *pool;
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public:
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    QMacCocoaAutoReleasePool();
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    ~QMacCocoaAutoReleasePool();
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    inline void *handle() const { return pool; }
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};
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QString qt_mac_removeMnemonics(const QString &original); //implemented in qmacstyle_mac.cpp
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class Q_GUI_EXPORT QMacWindowChangeEvent
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{
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private:
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    static QList<QMacWindowChangeEvent*> *change_events;
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public:
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    QMacWindowChangeEvent() {
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    }
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    virtual ~QMacWindowChangeEvent() {
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    }
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    static inline void exec(bool ) {
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    }
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protected:
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    virtual void windowChanged() = 0;
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    virtual void flushWindowChanged() = 0;
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};
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class QMacCGContext
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{
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    CGContextRef context;
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public:
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    QMacCGContext(QPainter *p); //qpaintengine_mac.cpp
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    inline QMacCGContext() { context = 0; }
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    inline QMacCGContext(const QPaintDevice *pdev) {
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        extern CGContextRef qt_mac_cg_context(const QPaintDevice *);
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        context = qt_mac_cg_context(pdev);
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    }
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    inline QMacCGContext(CGContextRef cg, bool takeOwnership=false) {
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        context = cg;
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        if(!takeOwnership)
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            CGContextRetain(context);
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    }
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    inline QMacCGContext(const QMacCGContext &copy) : context(0) { *this = copy; }
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    inline ~QMacCGContext() {
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        if(context)
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            CGContextRelease(context);
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    }
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    inline bool isNull() const { return context; }
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    inline operator CGContextRef() { return context; }
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    inline QMacCGContext &operator=(const QMacCGContext &copy) {
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        if(context)
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            CGContextRelease(context);
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        context = copy.context;
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        CGContextRetain(context);
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        return *this;
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    }
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    inline QMacCGContext &operator=(CGContextRef cg) {
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        if(context)
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            CGContextRelease(context);
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        context = cg;
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        CGContextRetain(context); //we do not take ownership
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        return *this;
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    }
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};
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class QMacPasteboardMime;
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class QMimeData;
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class QMacPasteboard
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{
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    struct Promise {
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        Promise() : itemId(0), convertor(0) { }
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        Promise(int itemId, QMacPasteboardMime *c, QString m, QVariant d, int o=0) : itemId(itemId), offset(o), convertor(c), mime(m), data(d) { }
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        int itemId, offset;
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        QMacPasteboardMime *convertor;
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        QString mime;
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        QVariant data;
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    };
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    QList<Promise> promises;
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    OSPasteboardRef paste;
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    uchar mime_type;
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    mutable QPointer<QMimeData> mime;
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    mutable bool mac_mime_source;
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    static OSStatus promiseKeeper(OSPasteboardRef, PasteboardItemID, CFStringRef, void *);
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    void clear_helper();
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public:
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    QMacPasteboard(OSPasteboardRef p, uchar mime_type=0);
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    QMacPasteboard(uchar mime_type);
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    QMacPasteboard(CFStringRef name=0, uchar mime_type=0);
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    ~QMacPasteboard();
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    bool hasFlavor(QString flavor) const;
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    bool hasOSType(int c_flavor) const;
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    OSPasteboardRef pasteBoard() const;
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    QMimeData *mimeData() const;
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    void setMimeData(QMimeData *mime);
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    QStringList formats() const;
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    bool hasFormat(const QString &format) const;
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    QVariant retrieveData(const QString &format, QVariant::Type) const;
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    void clear();
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    bool sync() const;
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};
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extern QPaintDevice *qt_mac_safe_pdev; //qapplication_mac.cpp
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extern OSWindowRef qt_mac_window_for(const QWidget*); //qwidget_mac.mm
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extern OSViewRef qt_mac_nativeview_for(const QWidget *); //qwidget_mac.mm
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extern QPoint qt_mac_nativeMapFromParent(const QWidget *child, const QPoint &pt); //qwidget_mac.mm
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#ifdef check
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# undef check
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#endif
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QFont qfontForThemeFont(ThemeFontID themeID);
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QColor qcolorForTheme(ThemeBrush brush);
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QColor qcolorForThemeTextColor(ThemeTextColor themeColor);
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struct QMacDndAnswerRecord {
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    QRect rect;
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    Qt::KeyboardModifiers modifiers;
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    Qt::MouseButtons buttons;
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    Qt::DropAction lastAction;
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    unsigned int lastOperation;
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    void clear() {
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        rect = QRect();
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        modifiers = Qt::NoModifier;
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        buttons = Qt::NoButton;
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        lastAction = Qt::IgnoreAction;
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        lastOperation = 0;
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    }
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};
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extern QMacDndAnswerRecord qt_mac_dnd_answer_rec;
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void qt_mac_copy_answer_rect(const QDragMoveEvent &event);
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bool qt_mac_mouse_inside_answer_rect(QPoint mouse);
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QT_END_NAMESPACE
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#endif // QT_MAC_P_H