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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (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 http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QT_MAC_P_H
#define QT_MAC_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include "qmacdefines_mac.h"

#ifdef __OBJC__
#include <Cocoa/Cocoa.h>
#endif

#include <CoreServices/CoreServices.h>

#include "QtCore/qglobal.h"
#include "QtCore/qvariant.h"
#include "QtCore/qmimedata.h"
#include "QtCore/qpointer.h"
#include "private/qcore_mac_p.h"


#include "QtGui/qpainter.h"

#include <Carbon/Carbon.h>

QT_BEGIN_NAMESPACE
class QWidget;
class QDragMoveEvent;

/* Event masks */
// internal Qt types

 // Event class for our own Carbon events.
#if defined(QT_NAMESPACE) && defined(QT_NAMESPACE_MAC_CRC)
// Take the CRC we generated at configure time. This *may* result in a
// collision with another value If that is the case, please change the value
// here to something other than 'Cute'.
const UInt32 kEventClassQt = QT_NAMESPACE_MAC_CRC;
#else
const UInt32 kEventClassQt = 'Cute';
#endif

enum {
    //AE types
    typeAEClipboardChanged = 1,
    //types
    typeQWidget = 1,  /* QWidget *  */
    //params
    kEventParamQWidget = 'qwid',   /* typeQWidget */
    //events
    kEventQtRequestContext = 13,
    kEventQtRequestMenubarUpdate = 14,
    kEventQtRequestShowSheet = 17,
    kEventQtRequestActivate = 18,
    kEventQtRequestWindowChange = 20
};

// Simple class to manage short-lived regions
class QMacSmartQuickDrawRegion
{
    RgnHandle qdRgn;
    Q_DISABLE_COPY(QMacSmartQuickDrawRegion)
public:
    explicit QMacSmartQuickDrawRegion(RgnHandle rgn) : qdRgn(rgn) {}
    ~QMacSmartQuickDrawRegion() {
        extern void qt_mac_dispose_rgn(RgnHandle); // qregion_mac.cpp
        qt_mac_dispose_rgn(qdRgn);
    }
    operator RgnHandle() {
        return qdRgn;
    }
};

// Class for chaining to gether a bunch of fades. It pretty much is only used for qmenu fading.
class QMacWindowFader
{
    QWidgetList m_windowsToFade;
    float m_duration;
    Q_DISABLE_COPY(QMacWindowFader)
public:
    QMacWindowFader(); // PLEASE DON'T CALL THIS.
    static QMacWindowFader *currentFader();
    void registerWindowToFade(QWidget *window);
    void setFadeDuration(float durationInSecs) { m_duration = durationInSecs; }
    float fadeDuration() const { return m_duration; }
    void performFade();
};

class Q_GUI_EXPORT QMacCocoaAutoReleasePool
{
private:
    void *pool;
public:
    QMacCocoaAutoReleasePool();
    ~QMacCocoaAutoReleasePool();

    inline void *handle() const { return pool; }
};

QString qt_mac_removeMnemonics(const QString &original); //implemented in qmacstyle_mac.cpp

class Q_GUI_EXPORT QMacWindowChangeEvent
{
private:
    static QList<QMacWindowChangeEvent*> *change_events;
public:
    QMacWindowChangeEvent() {
    }
    virtual ~QMacWindowChangeEvent() {
    }
    static inline void exec(bool ) {
    }
protected:
    virtual void windowChanged() = 0;
    virtual void flushWindowChanged() = 0;
};

class QMacCGContext
{
    CGContextRef context;
public:
    QMacCGContext(QPainter *p); //qpaintengine_mac.cpp
    inline QMacCGContext() { context = 0; }
    inline QMacCGContext(const QPaintDevice *pdev) {
        extern CGContextRef qt_mac_cg_context(const QPaintDevice *);
        context = qt_mac_cg_context(pdev);
    }
    inline QMacCGContext(CGContextRef cg, bool takeOwnership=false) {
        context = cg;
        if(!takeOwnership)
            CGContextRetain(context);
    }
    inline QMacCGContext(const QMacCGContext &copy) : context(0) { *this = copy; }
    inline ~QMacCGContext() {
        if(context)
            CGContextRelease(context);
    }
    inline bool isNull() const { return context; }
    inline operator CGContextRef() { return context; }
    inline QMacCGContext &operator=(const QMacCGContext &copy) {
        if(context)
            CGContextRelease(context);
        context = copy.context;
        CGContextRetain(context);
        return *this;
    }
    inline QMacCGContext &operator=(CGContextRef cg) {
        if(context)
            CGContextRelease(context);
        context = cg;
        CGContextRetain(context); //we do not take ownership
        return *this;
    }
};

class QMacPasteboardMime;
class QMimeData;

class QMacPasteboard
{
    struct Promise {
        Promise() : itemId(0), convertor(0) { }
        Promise(int itemId, QMacPasteboardMime *c, QString m, QVariant d, int o=0) : itemId(itemId), offset(o), convertor(c), mime(m), data(d) { }
        int itemId, offset;
        QMacPasteboardMime *convertor;
        QString mime;
        QVariant data;
    };
    QList<Promise> promises;

    OSPasteboardRef paste;
    uchar mime_type;
    mutable QPointer<QMimeData> mime;
    mutable bool mac_mime_source;
    static OSStatus promiseKeeper(OSPasteboardRef, PasteboardItemID, CFStringRef, void *);
    void clear_helper();
public:
    QMacPasteboard(OSPasteboardRef p, uchar mime_type=0);
    QMacPasteboard(uchar mime_type);
    QMacPasteboard(CFStringRef name=0, uchar mime_type=0);
    ~QMacPasteboard();

    bool hasFlavor(QString flavor) const;
    bool hasOSType(int c_flavor) const;

    OSPasteboardRef pasteBoard() const;
    QMimeData *mimeData() const;
    void setMimeData(QMimeData *mime);

    QStringList formats() const;
    bool hasFormat(const QString &format) const;
    QVariant retrieveData(const QString &format, QVariant::Type) const;

    void clear();
    bool sync() const;
};

extern QPaintDevice *qt_mac_safe_pdev; //qapplication_mac.cpp

extern OSWindowRef qt_mac_window_for(const QWidget*); //qwidget_mac.mm
extern OSViewRef qt_mac_nativeview_for(const QWidget *); //qwidget_mac.mm
extern QPoint qt_mac_nativeMapFromParent(const QWidget *child, const QPoint &pt); //qwidget_mac.mm

#ifdef check
# undef check
#endif

QFont qfontForThemeFont(ThemeFontID themeID);

QColor qcolorForTheme(ThemeBrush brush);

QColor qcolorForThemeTextColor(ThemeTextColor themeColor);

struct QMacDndAnswerRecord {
    QRect rect;
    Qt::KeyboardModifiers modifiers;
    Qt::MouseButtons buttons;
    Qt::DropAction lastAction;
    unsigned int lastOperation;
    void clear() {
        rect = QRect();
        modifiers = Qt::NoModifier;
        buttons = Qt::NoButton;
        lastAction = Qt::IgnoreAction;
        lastOperation = 0;
    }
};
extern QMacDndAnswerRecord qt_mac_dnd_answer_rec;
void qt_mac_copy_answer_rect(const QDragMoveEvent &event);
bool qt_mac_mouse_inside_answer_rect(QPoint mouse);

QT_END_NAMESPACE

#endif // QT_MAC_P_H