qmime_mac.cpp

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**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** accordance with the commercial license agreement provided with the
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** 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
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** 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
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****************************************************************************/

#include "qmime.h"

//#define USE_INTERNET_CONFIG

#ifndef USE_INTERNET_CONFIG
# include "qfile.h"
# include "qfileinfo.h"
# include "qtextstream.h"
# include "qdir.h"
# include <unistd.h>
# include <sys/types.h>
# include <sys/stat.h>
# include <sys/fcntl.h>
#endif

#include "qdebug.h"
#include "qpixmap.h"
#include "qimagewriter.h"
#include "qimagereader.h"
#include "qdatastream.h"
#include "qbuffer.h"
#include "qdatetime.h"
#include "qapplication_p.h"
#include "qtextcodec.h"
#include "qregexp.h"
#include "qurl.h"
#include "qmap.h"
#include <private/qt_mac_p.h>


#ifdef Q_WS_MAC32
#include <QuickTime/QuickTime.h>
#include <qlibrary.h>
#endif

QT_BEGIN_NAMESPACE

extern CGImageRef qt_mac_createCGImageFromQImage(const QImage &img, const QImage **imagePtr = 0); // qpaintengine_mac.cpp

typedef QList<QMacPasteboardMime*> MimeList;
Q_GLOBAL_STATIC(MimeList, globalMimeList)

static void cleanup_mimes()
{
    MimeList *mimes = globalMimeList();
    while (!mimes->isEmpty())
        delete mimes->takeFirst();
}

Q_GLOBAL_STATIC(QStringList, globalDraggedTypesList)


Q_GUI_EXPORT void qRegisterDraggedTypes(const QStringList &types)
{
    (*globalDraggedTypesList()) += types;
}

const QStringList& qEnabledDraggedTypes()
{
    return (*globalDraggedTypesList());
}


/*****************************************************************************
  QDnD debug facilities
 *****************************************************************************/
//#define DEBUG_MIME_MAPS

ScrapFlavorType qt_mac_mime_type = 'CUTE';
CFStringRef qt_mac_mime_typeUTI = CFSTR("com.pasteboard.trolltech.marker");

QMacPasteboardMime::QMacPasteboardMime(char t) : type(t)
{
    globalMimeList()->append(this);
}

QMacPasteboardMime::~QMacPasteboardMime()
{
    if(!QApplication::closingDown())
        globalMimeList()->removeAll(this);
}

class QMacPasteboardMimeAny : public QMacPasteboardMime {
private:

public:
    QMacPasteboardMimeAny() : QMacPasteboardMime(MIME_QT_CONVERTOR|MIME_ALL) {
    }
    ~QMacPasteboardMimeAny() {
    }
    QString convertorName();

    QString flavorFor(const QString &mime);
    QString mimeFor(QString flav);
    bool canConvert(const QString &mime, QString flav);
    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
};

QString QMacPasteboardMimeAny::convertorName()
{
    return QLatin1String("Any-Mime");
}

QString QMacPasteboardMimeAny::flavorFor(const QString &mime)
{   
    // do not handle the mime type name in the drag pasteboard
    if(mime == QLatin1String("application/x-qt-mime-type-name"))
        return QString();
    QString ret = QLatin1String("com.trolltech.anymime.") + mime;
    return ret.replace(QLatin1Char('/'), QLatin1String("--"));
}

QString QMacPasteboardMimeAny::mimeFor(QString flav)
{
    const QString any_prefix = QLatin1String("com.trolltech.anymime.");
    if(flav.size() > any_prefix.length() && flav.startsWith(any_prefix))
        return flav.mid(any_prefix.length()).replace(QLatin1String("--"), QLatin1String("/"));
    return QString();
}

bool QMacPasteboardMimeAny::canConvert(const QString &mime, QString flav)
{
    return mimeFor(flav) == mime;
}

QVariant QMacPasteboardMimeAny::convertToMime(const QString &mime, QList<QByteArray> data, QString)
{
    if(data.count() > 1)
        qWarning("QMacPasteboardMimeAny: Cannot handle multiple member data");
    QVariant ret;
    if (mime == QLatin1String("text/plain"))
        ret = QString::fromUtf8(data.first());
    else
        ret = data.first();
    return ret;
}

QList<QByteArray> QMacPasteboardMimeAny::convertFromMime(const QString &mime, QVariant data, QString)
{
    QList<QByteArray> ret;
    if (mime == QLatin1String("text/plain"))
        ret.append(data.toString().toUtf8());
    else
        ret.append(data.toByteArray());
    return ret;
}

class QMacPasteboardMimeTypeName : public QMacPasteboardMime {
private:

public:
    QMacPasteboardMimeTypeName() : QMacPasteboardMime(MIME_QT_CONVERTOR|MIME_ALL) {
    }
    ~QMacPasteboardMimeTypeName() {
    }
    QString convertorName();

    QString flavorFor(const QString &mime);
    QString mimeFor(QString flav);
    bool canConvert(const QString &mime, QString flav);
    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
};

QString QMacPasteboardMimeTypeName::convertorName()
{
    return QLatin1String("Qt-Mime-Type");
}

QString QMacPasteboardMimeTypeName::flavorFor(const QString &mime)
{
    if(mime == QLatin1String("application/x-qt-mime-type-name"))
        return QLatin1String("com.trolltech.qt.MimeTypeName");
    return QString();
}

QString QMacPasteboardMimeTypeName::mimeFor(QString)
{
    return QString();
}

bool QMacPasteboardMimeTypeName::canConvert(const QString &, QString)
{
    return false;
}

QVariant QMacPasteboardMimeTypeName::convertToMime(const QString &, QList<QByteArray>, QString)
{
    QVariant ret;
    return ret;
}

QList<QByteArray> QMacPasteboardMimeTypeName::convertFromMime(const QString &, QVariant, QString)
{
    QList<QByteArray> ret;
    ret.append(QString("x-qt-mime-type-name").toUtf8());
    return ret;
}

class QMacPasteboardMimePlainText : public QMacPasteboardMime {
public:
    QMacPasteboardMimePlainText() : QMacPasteboardMime(MIME_ALL) { }
    QString convertorName();

    QString flavorFor(const QString &mime);
    QString mimeFor(QString flav);
    bool canConvert(const QString &mime, QString flav);
    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
};

QString QMacPasteboardMimePlainText::convertorName()
{
    return QLatin1String("PlainText");
}

QString QMacPasteboardMimePlainText::flavorFor(const QString &mime)
{
    if (mime == QLatin1String("text/plain"))
        return QLatin1String("com.apple.traditional-mac-plain-text");
    return QString();
}

QString QMacPasteboardMimePlainText::mimeFor(QString flav)
{
    if (flav == QLatin1String("com.apple.traditional-mac-plain-text"))
        return QLatin1String("text/plain");
    return QString();
}

bool QMacPasteboardMimePlainText::canConvert(const QString &mime, QString flav)
{
    return flavorFor(mime) == flav;
}

QVariant QMacPasteboardMimePlainText::convertToMime(const QString &mimetype, QList<QByteArray> data, QString flavor)
{
    if(data.count() > 1)
        qWarning("QMacPasteboardMimePlainText: Cannot handle multiple member data");
    const QByteArray &firstData = data.first();
    QVariant ret;
    if(flavor == QCFString(QLatin1String("com.apple.traditional-mac-plain-text"))) {
        QCFString str(CFStringCreateWithBytes(kCFAllocatorDefault,
                                             reinterpret_cast<const UInt8 *>(firstData.constData()),
                                             firstData.size(), CFStringGetSystemEncoding(), false));
        ret = QString(str);
    } else {
        qWarning("QMime::convertToMime: unhandled mimetype: %s", qPrintable(mimetype));
    }
    return ret;
}

QList<QByteArray> QMacPasteboardMimePlainText::convertFromMime(const QString &, QVariant data, QString flavor)
{
    QList<QByteArray> ret;
    QString string = data.toString();
    if(flavor == QCFString(QLatin1String("com.apple.traditional-mac-plain-text")))
        ret.append(string.toLatin1());
    return ret;
}

class QMacPasteboardMimeUnicodeText : public QMacPasteboardMime {
public:
    QMacPasteboardMimeUnicodeText() : QMacPasteboardMime(MIME_ALL) { }
    QString convertorName();

    QString flavorFor(const QString &mime);
    QString mimeFor(QString flav);
    bool canConvert(const QString &mime, QString flav);
    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
};

QString QMacPasteboardMimeUnicodeText::convertorName()
{
    return QLatin1String("UnicodeText");
}

QString QMacPasteboardMimeUnicodeText::flavorFor(const QString &mime)
{
    if (mime == QLatin1String("text/plain"))
        return QLatin1String("public.utf16-plain-text");
    int i = mime.indexOf(QLatin1String("charset="));
    if (i >= 0) {
        QString cs(mime.mid(i+8).toLower());
        i = cs.indexOf(QLatin1Char(';'));
        if (i>=0)
            cs = cs.left(i);
        if (cs == QLatin1String("system"))
            return QLatin1String("public.utf8-plain-text");
        else if (cs == QLatin1String("iso-10646-ucs-2")
                 || cs == QLatin1String("utf16"))
            return QLatin1String("public.utf16-plain-text");
    }
    return QString();
}

QString QMacPasteboardMimeUnicodeText::mimeFor(QString flav)
{
    if (flav == QLatin1String("public.utf16-plain-text") || flav == QLatin1String("public.utf8-plain-text"))
        return QLatin1String("text/plain");
    return QString();
}

bool QMacPasteboardMimeUnicodeText::canConvert(const QString &mime, QString flav)
{
    return flavorFor(mime) == flav;
}

QVariant QMacPasteboardMimeUnicodeText::convertToMime(const QString &mimetype, QList<QByteArray> data, QString flavor)
{
    if(data.count() > 1)
        qWarning("QMacPasteboardMimeUnicodeText: Cannot handle multiple member data");
    const QByteArray &firstData = data.first();
    // I can only handle two types (system and unicode) so deal with them that way
    QVariant ret;
    if(flavor == QLatin1String("public.utf8-plain-text")) {
        QCFString str(CFStringCreateWithBytes(kCFAllocatorDefault,
                                             reinterpret_cast<const UInt8 *>(firstData.constData()),
                                             firstData.size(), CFStringGetSystemEncoding(), false));
        ret = QString(str);
    } else if (flavor == QLatin1String("public.utf16-plain-text")) {
        ret = QString(reinterpret_cast<const QChar *>(firstData.constData()),
                      firstData.size() / sizeof(QChar));
    } else {
        qWarning("QMime::convertToMime: unhandled mimetype: %s", qPrintable(mimetype));
    }
    return ret;
}

QList<QByteArray> QMacPasteboardMimeUnicodeText::convertFromMime(const QString &, QVariant data, QString flavor)
{
    QList<QByteArray> ret;
    QString string = data.toString();
    if(flavor == QLatin1String("public.utf8-plain-text"))
        ret.append(string.toUtf8());
    else if (flavor == QLatin1String("public.utf16-plain-text"))
        ret.append(QByteArray((char*)string.utf16(), string.length()*2));
    return ret;
}

class QMacPasteboardMimeHTMLText : public QMacPasteboardMime {
public:
    QMacPasteboardMimeHTMLText() : QMacPasteboardMime(MIME_ALL) { }
    QString convertorName();

    QString flavorFor(const QString &mime);
    QString mimeFor(QString flav);
    bool canConvert(const QString &mime, QString flav);
    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
};

QString QMacPasteboardMimeHTMLText::convertorName()
{
    return QLatin1String("HTML");
}

QString QMacPasteboardMimeHTMLText::flavorFor(const QString &mime)
{
    if (mime == QLatin1String("text/html"))
        return QLatin1String("public.html");
    return QString();
}

QString QMacPasteboardMimeHTMLText::mimeFor(QString flav)
{
    if (flav == QLatin1String("public.html"))
        return QLatin1String("text/html");
    return QString();
}

bool QMacPasteboardMimeHTMLText::canConvert(const QString &mime, QString flav)
{
    return flavorFor(mime) == flav;
}

QVariant QMacPasteboardMimeHTMLText::convertToMime(const QString &mimeType, QList<QByteArray> data, QString flavor)
{
    if (!canConvert(mimeType, flavor))
        return QVariant();
    if (data.count() > 1)
        qWarning("QMacPasteboardMimeHTMLText: Cannot handle multiple member data");
    return data.first();
}

QList<QByteArray> QMacPasteboardMimeHTMLText::convertFromMime(const QString &mime, QVariant data, QString flavor)
{
    QList<QByteArray> ret;
    if (!canConvert(mime, flavor))
        return ret;
    ret.append(data.toByteArray());
    return ret;
}


#ifdef Q_WS_MAC32

// This can be removed once 10.6 is the minimum (or we have to require 64-bit) whichever comes first.

typedef ComponentResult (*PtrGraphicsImportSetDataHandle)(GraphicsImportComponent, Handle);
typedef ComponentResult (*PtrGraphicsImportCreateCGImage)(GraphicsImportComponent, CGImageRef*, UInt32);
typedef ComponentResult (*PtrGraphicsExportSetInputCGImage)(GraphicsExportComponent, CGImageRef);
typedef ComponentResult (*PtrGraphicsExportSetOutputHandle)(GraphicsExportComponent, Handle);
typedef ComponentResult (*PtrGraphicsExportDoExport)(GraphicsExportComponent, unsigned long *);

static PtrGraphicsImportSetDataHandle ptrGraphicsImportSetDataHandle = 0;
static PtrGraphicsImportCreateCGImage ptrGraphicsImportCreateCGImage = 0;
static PtrGraphicsExportSetInputCGImage ptrGraphicsExportSetInputCGImage = 0;
static PtrGraphicsExportSetOutputHandle ptrGraphicsExportSetOutputHandle = 0;
static PtrGraphicsExportDoExport ptrGraphicsExportDoExport = 0;

static bool resolveMimeQuickTimeSymbols()
{
    static bool triedResolve = false;
    if (!triedResolve) {
        QLibrary library(QLatin1String("/System/Library/Frameworks/QuickTime.framework/QuickTime"));
        ptrGraphicsImportSetDataHandle = reinterpret_cast<PtrGraphicsImportSetDataHandle>(library.resolve("GraphicsImportSetDataHandle"));
        ptrGraphicsImportCreateCGImage = reinterpret_cast<PtrGraphicsImportCreateCGImage>(library.resolve("GraphicsImportCreateCGImage"));
        ptrGraphicsExportSetInputCGImage = reinterpret_cast<PtrGraphicsExportSetInputCGImage>(library.resolve("GraphicsExportSetInputCGImage"));
        ptrGraphicsExportSetOutputHandle = reinterpret_cast<PtrGraphicsExportSetOutputHandle>(library.resolve("GraphicsExportSetOutputHandle"));
        ptrGraphicsExportDoExport = reinterpret_cast<PtrGraphicsExportDoExport>(library.resolve("GraphicsExportDoExport"));
        triedResolve = true;
    }

    return ptrGraphicsImportSetDataHandle != 0
           && ptrGraphicsImportCreateCGImage != 0 && ptrGraphicsExportSetInputCGImage != 0
           && ptrGraphicsExportSetOutputHandle != 0 && ptrGraphicsExportDoExport != 0;
}

class QMacPasteboardMimePict : public QMacPasteboardMime {
public:
    QMacPasteboardMimePict() : QMacPasteboardMime(MIME_ALL) { }
    QString convertorName();

    QString flavorFor(const QString &mime);
    QString mimeFor(QString flav);
    bool canConvert(const QString &mime, QString flav);
    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
};

QString QMacPasteboardMimePict::convertorName()
{
    return QLatin1String("Pict");
}

QString QMacPasteboardMimePict::flavorFor(const QString &mime)
{
    if(mime.startsWith(QLatin1String("application/x-qt-image")))
        return QLatin1String("com.apple.pict");
    return QString();
}

QString QMacPasteboardMimePict::mimeFor(QString flav)
{
    if(flav == QLatin1String("com.apple.pict"))
        return QLatin1String("application/x-qt-image");
    return QString();
}

bool QMacPasteboardMimePict::canConvert(const QString &mime, QString flav)
{
    return flav == QLatin1String("com.apple.pict")
            && mime == QLatin1String("application/x-qt-image");
}


QVariant QMacPasteboardMimePict::convertToMime(const QString &mime, QList<QByteArray> data, QString flav)
{
    if(data.count() > 1)
        qWarning("QMacPasteboardMimePict: Cannot handle multiple member data");
    QVariant ret;
    if (!resolveMimeQuickTimeSymbols())
        return ret;

    if(!canConvert(mime, flav))
        return ret;
    const QByteArray &a = data.first();

    // This function expects the 512 header (just to skip it, so create the extra space for it).
    Handle pic = NewHandle(a.size() + 512);
    memcpy(*pic + 512, a.constData(), a.size());

    GraphicsImportComponent graphicsImporter;
    ComponentResult result = OpenADefaultComponent(GraphicsImporterComponentType,
                                                   kQTFileTypePicture, &graphicsImporter);
    QCFType<CGImageRef> cgImage;
    if (!result)
        result = ptrGraphicsImportSetDataHandle(graphicsImporter, pic);
    if (!result)
        result = ptrGraphicsImportCreateCGImage(graphicsImporter, &cgImage,
                                             kGraphicsImportCreateCGImageUsingCurrentSettings);
    if (!result)
        ret = QVariant(QPixmap::fromMacCGImageRef(cgImage).toImage());
    CloseComponent(graphicsImporter);
    DisposeHandle(pic);
    return ret;
}

QList<QByteArray> QMacPasteboardMimePict::convertFromMime(const QString &mime, QVariant variant,
                                                          QString flav)
{
    QList<QByteArray> ret;
    if (!resolveMimeQuickTimeSymbols())
        return ret;

    if (!canConvert(mime, flav))
        return ret;
    QCFType<CGImageRef> cgimage = qt_mac_createCGImageFromQImage(qvariant_cast<QImage>(variant));
    Handle pic = NewHandle(0);
    GraphicsExportComponent graphicsExporter;
    ComponentResult result = OpenADefaultComponent(GraphicsExporterComponentType,
                                                   kQTFileTypePicture, &graphicsExporter);
    if (!result) {
        unsigned long sizeWritten;
        result = ptrGraphicsExportSetInputCGImage(graphicsExporter, cgimage);
        if (!result)
            result = ptrGraphicsExportSetOutputHandle(graphicsExporter, pic);
        if (!result)
            result = ptrGraphicsExportDoExport(graphicsExporter, &sizeWritten);

        CloseComponent(graphicsExporter);
    }

    int size = GetHandleSize((Handle)pic);
    // Skip the Picture File header (512 bytes) and feed the raw data
    QByteArray ar(reinterpret_cast<char *>(*pic + 512), size - 512);
    ret.append(ar);
    DisposeHandle(pic);
    return ret;
}


#endif //Q_WS_MAC32

class QMacPasteboardMimeTiff : public QMacPasteboardMime {
public:
    QMacPasteboardMimeTiff() : QMacPasteboardMime(MIME_ALL) { }
    QString convertorName();

    QString flavorFor(const QString &mime);
    QString mimeFor(QString flav);
    bool canConvert(const QString &mime, QString flav);
    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
};

QString QMacPasteboardMimeTiff::convertorName()
{
    return QLatin1String("Tiff");
}

QString QMacPasteboardMimeTiff::flavorFor(const QString &mime)
{
    if(mime.startsWith(QLatin1String("application/x-qt-image")))
        return QLatin1String("public.tiff");
    return QString();
}

QString QMacPasteboardMimeTiff::mimeFor(QString flav)
{
    if(flav == QLatin1String("public.tiff"))
        return QLatin1String("application/x-qt-image");
    return QString();
}

bool QMacPasteboardMimeTiff::canConvert(const QString &mime, QString flav)
{
    return flav == QLatin1String("public.tiff") && mime == QLatin1String("application/x-qt-image");
}

QVariant QMacPasteboardMimeTiff::convertToMime(const QString &mime, QList<QByteArray> data, QString flav)
{
    if(data.count() > 1)
        qWarning("QMacPasteboardMimeTiff: Cannot handle multiple member data");
    QVariant ret;
    if (!canConvert(mime, flav))
        return ret;
    const QByteArray &a = data.first();
    QCFType<CGImageRef> image;
    QCFType<CFDataRef> tiffData = CFDataCreateWithBytesNoCopy(0,
                                                reinterpret_cast<const UInt8 *>(a.constData()),
                                                a.size(), kCFAllocatorNull);
    QCFType<CGImageSourceRef> imageSource = CGImageSourceCreateWithData(tiffData, 0);
    image = CGImageSourceCreateImageAtIndex(imageSource, 0, 0);

    if (image != 0)
        ret = QVariant(QPixmap::fromMacCGImageRef(image).toImage());
    return ret;
}

QList<QByteArray> QMacPasteboardMimeTiff::convertFromMime(const QString &mime, QVariant variant, QString flav)
{
    QList<QByteArray> ret;
    if (!canConvert(mime, flav))
        return ret;

    QImage img = qvariant_cast<QImage>(variant);
    QCFType<CGImageRef> cgimage = qt_mac_createCGImageFromQImage(img);
#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4)
    if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_4) {
        QCFType<CFMutableDataRef> data = CFDataCreateMutable(0, 0);
        QCFType<CGImageDestinationRef> imageDestination = CGImageDestinationCreateWithData(data, kUTTypeTIFF, 1, 0);
        if (imageDestination != 0) {
            CFTypeRef keys[2];
            QCFType<CFTypeRef> values[2];
            QCFType<CFDictionaryRef> options;
            keys[0] = kCGImagePropertyPixelWidth;
            keys[1] = kCGImagePropertyPixelHeight;
            int width = img.width();
            int height = img.height();
            values[0] = CFNumberCreate(0, kCFNumberIntType, &width);
            values[1] = CFNumberCreate(0, kCFNumberIntType, &height);
            options = CFDictionaryCreate(0, reinterpret_cast<const void **>(keys),
                                         reinterpret_cast<const void **>(values), 2,
                                         &kCFTypeDictionaryKeyCallBacks,
                                         &kCFTypeDictionaryValueCallBacks);
            CGImageDestinationAddImage(imageDestination, cgimage, options);
            CGImageDestinationFinalize(imageDestination);
        }
        QByteArray ar(CFDataGetLength(data), 0);
        CFDataGetBytes(data,
                CFRangeMake(0, ar.size()),
                reinterpret_cast<UInt8 *>(ar.data()));
        ret.append(ar);
    } else
#endif
    {
#ifdef Q_WS_MAC32
        Handle tiff = NewHandle(0);
        if (resolveMimeQuickTimeSymbols()) {
            GraphicsExportComponent graphicsExporter;
            ComponentResult result = OpenADefaultComponent(GraphicsExporterComponentType,
                                                           kQTFileTypeTIFF, &graphicsExporter);
            if (!result) {
                unsigned long sizeWritten;
                result = ptrGraphicsExportSetInputCGImage(graphicsExporter, cgimage);
                if (!result)
                    result = ptrGraphicsExportSetOutputHandle(graphicsExporter, tiff);
                if (!result)
                    result = ptrGraphicsExportDoExport(graphicsExporter, &sizeWritten);

                CloseComponent(graphicsExporter);
            }
        }
        int size = GetHandleSize((Handle)tiff);
        QByteArray ar(reinterpret_cast<char *>(*tiff), size);
        ret.append(ar);
        DisposeHandle(tiff);
#endif
    }
    return ret;
}


class QMacPasteboardMimeFileUri : public QMacPasteboardMime {
public:
    QMacPasteboardMimeFileUri() : QMacPasteboardMime(MIME_ALL) { }
    QString convertorName();

    QString flavorFor(const QString &mime);
    QString mimeFor(QString flav);
    bool canConvert(const QString &mime, QString flav);
    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
};

QString QMacPasteboardMimeFileUri::convertorName()
{
    return QLatin1String("FileURL");
}

QString QMacPasteboardMimeFileUri::flavorFor(const QString &mime)
{
    if (mime == QLatin1String("text/uri-list"))
        return QCFString(UTTypeCreatePreferredIdentifierForTag(kUTTagClassOSType, CFSTR("furl"), 0));
    return QString();
}

QString QMacPasteboardMimeFileUri::mimeFor(QString flav)
{
    if (flav == QCFString(UTTypeCreatePreferredIdentifierForTag(kUTTagClassOSType, CFSTR("furl"), 0)))
        return QLatin1String("text/uri-list");
    return QString();
}

bool QMacPasteboardMimeFileUri::canConvert(const QString &mime, QString flav)
{
    return mime == QLatin1String("text/uri-list")
            && flav == QCFString(UTTypeCreatePreferredIdentifierForTag(kUTTagClassOSType, CFSTR("furl"), 0));
}

QVariant QMacPasteboardMimeFileUri::convertToMime(const QString &mime, QList<QByteArray> data, QString flav)
{
    if(!canConvert(mime, flav))
        return QVariant();
    QList<QVariant> ret;
    for(int i = 0; i < data.size(); ++i) {
        QUrl url = QUrl::fromEncoded(data.at(i));
        if (url.host().toLower() == QLatin1String("localhost"))
            url.setHost(QString());
        url.setPath(url.path().normalized(QString::NormalizationForm_C));
        ret.append(url);
    }
    return QVariant(ret);
}

QList<QByteArray> QMacPasteboardMimeFileUri::convertFromMime(const QString &mime, QVariant data, QString flav)
{
    QList<QByteArray> ret;
    if (!canConvert(mime, flav))
        return ret;
    QList<QVariant> urls = data.toList();
    for(int i = 0; i < urls.size(); ++i) {
        QUrl url = urls.at(i).toUrl();
        if (url.scheme().isEmpty())
            url.setScheme(QLatin1String("file"));
        if (url.scheme().toLower() == QLatin1String("file")) {
            if (url.host().isEmpty())
                url.setHost(QLatin1String("localhost"));
            url.setPath(url.path().normalized(QString::NormalizationForm_D));
        }
        ret.append(url.toEncoded());
    }
    return ret;
}

class QMacPasteboardMimeUrl : public QMacPasteboardMime {
public:
    QMacPasteboardMimeUrl() : QMacPasteboardMime(MIME_ALL) { }
    QString convertorName();

    QString flavorFor(const QString &mime);
    QString mimeFor(QString flav);
    bool canConvert(const QString &mime, QString flav);
    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
};

QString QMacPasteboardMimeUrl::convertorName()
{
    return QLatin1String("URL");
}

QString QMacPasteboardMimeUrl::flavorFor(const QString &mime)
{
    if(mime.startsWith(QLatin1String("text/uri-list")))
        return QLatin1String("public.url");
    return QString();
}

QString QMacPasteboardMimeUrl::mimeFor(QString flav)
{
    if(flav == QLatin1String("public.url"))
        return QLatin1String("text/uri-list");
    return QString();
}

bool QMacPasteboardMimeUrl::canConvert(const QString &mime, QString flav)
{
    return flav == QLatin1String("public.url")
            && mime == QLatin1String("text/uri-list");
}

QVariant QMacPasteboardMimeUrl::convertToMime(const QString &mime, QList<QByteArray> data, QString flav)
{
    if(!canConvert(mime, flav))
        return QVariant();

    QList<QVariant> ret;
    for (int i=0; i<data.size(); ++i) {
        QUrl url = QUrl::fromEncoded(data.at(i));
        if (url.host().toLower() == QLatin1String("localhost"))
            url.setHost(QString());
        url.setPath(url.path().normalized(QString::NormalizationForm_C));
        ret.append(url);
    }
    return QVariant(ret);
}

QList<QByteArray> QMacPasteboardMimeUrl::convertFromMime(const QString &mime, QVariant data, QString flav)
{
    QList<QByteArray> ret;
    if (!canConvert(mime, flav))
        return ret;

    QList<QVariant> urls = data.toList();
    for(int i=0; i<urls.size(); ++i) {
        QUrl url = urls.at(i).toUrl();
        if (url.scheme().isEmpty())
            url.setScheme(QLatin1String("file"));
        if (url.scheme().toLower() == QLatin1String("file")) {
            if (url.host().isEmpty())
                url.setHost(QLatin1String("localhost"));
            url.setPath(url.path().normalized(QString::NormalizationForm_D));
        }
        ret.append(url.toEncoded());
    }
    return ret;
}

class QMacPasteboardMimeVCard : public QMacPasteboardMime
{
public:
    QMacPasteboardMimeVCard() : QMacPasteboardMime(MIME_ALL){ }
    QString convertorName();

    QString flavorFor(const QString &mime);
    QString mimeFor(QString flav);
    bool canConvert(const QString &mime, QString flav);
    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
};

QString QMacPasteboardMimeVCard::convertorName()
{
    return QString("VCard");
}

bool QMacPasteboardMimeVCard::canConvert(const QString &mime, QString flav)
{
    return mimeFor(flav) == mime;
}

QString QMacPasteboardMimeVCard::flavorFor(const QString &mime)
{
    if(mime.startsWith(QLatin1String("text/plain")))
        return QLatin1String("public.vcard");
    return QString();
}

QString QMacPasteboardMimeVCard::mimeFor(QString flav)
{
    if (flav == QLatin1String("public.vcard"))
        return QLatin1String("text/plain");
    return QString();
}

QVariant QMacPasteboardMimeVCard::convertToMime(const QString &mime, QList<QByteArray> data, QString)
{
    QByteArray cards;
    if (mime == QLatin1String("text/plain")) {
        for (int i=0; i<data.size(); ++i)
            cards += data[i];
    }
    return QVariant(cards);
}

QList<QByteArray> QMacPasteboardMimeVCard::convertFromMime(const QString &mime, QVariant data, QString)
{
    QList<QByteArray> ret;
    if (mime == QLatin1String("text/plain"))
        ret.append(data.toString().toUtf8());
    return ret;
}

#ifdef QT3_SUPPORT
class QMacPasteboardMimeQt3Any : public QMacPasteboardMime {
private:
    int current_max;
    QFile library_file;
    QDateTime mime_registry_loaded;
    QMap<QString, int> mime_registry;
    int registerMimeType(const QString &mime);
    bool loadMimeRegistry();

public:
    QMacPasteboardMimeQt3Any() : QMacPasteboardMime(MIME_QT3_CONVERTOR) {
        current_max = 'QT00';
    }
    ~QMacPasteboardMimeQt3Any() {
    }
    QString convertorName();

    QString flavorFor(const QString &mime);
    QString mimeFor(QString flav);
    bool canConvert(const QString &mime, QString flav);
    QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
    QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
};

static bool qt_mac_openMimeRegistry(bool global, QIODevice::OpenMode mode, QFile &file)
{
    QString dir = QLatin1String("/Library/Qt");
    if(!global)
        dir.prepend(QDir::homePath());
    file.setFileName(dir + QLatin1String("/.mime_types"));
    if(mode != QIODevice::ReadOnly) {
        if(!QFile::exists(dir)) {
            // Do it with a system call as I don't see much worth in
            // doing it with QDir since we have to chmod anyway.
            bool success = ::mkdir(dir.toLocal8Bit().constData(), S_IRUSR | S_IWUSR | S_IXUSR) == 0;
            if (success)
                success = ::chmod(dir.toLocal8Bit().constData(), S_IRUSR | S_IWUSR | S_IXUSR
                                      | S_IRGRP | S_IWGRP | S_IXGRP | S_IROTH | S_IWOTH | S_IXOTH) == 0;
            if (!success)
                return false;
        }
        if (!file.exists()) {
            // Create the file and chmod it so that everyone can write to it.
            int fd = ::open(file.fileName().toLocal8Bit().constData(), O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR);
            bool success = fd != -1;
            if (success)
                success = ::fchmod(fd, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH) == 0;
            if (fd != -1)
                ::close(fd);
            if(!success)
                return false;
        }
    }
    return file.open(mode);
}

static void qt_mac_loadMimeRegistry(QFile &file, QMap<QString, int> &registry, int &max)
{
    file.reset();
    QTextStream stream(&file);
    while(!stream.atEnd()) {
    QString mime = stream.readLine();
    int mactype = stream.readLine().toInt();
    if(mactype > max)
        max = mactype;
    registry.insert(mime, mactype);
    }
}

bool QMacPasteboardMimeQt3Any::loadMimeRegistry()
{
    if(!library_file.isOpen()) {
        if(!qt_mac_openMimeRegistry(true, QIODevice::ReadWrite, library_file)) {
            QFile global;
            if(qt_mac_openMimeRegistry(true, QIODevice::ReadOnly, global)) {
                qt_mac_loadMimeRegistry(global, mime_registry, current_max);
                global.close();
            }
            if(!qt_mac_openMimeRegistry(false, QIODevice::ReadWrite, library_file)) {
                qWarning("QMacPasteboardMimeAnyQt3Mime: Failure to open mime resources %s -- %s", library_file.fileName().toLatin1().constData(),
                         library_file.errorString().toLatin1().constData());
                return false;
            }
        }
    }

    QFileInfo fi(library_file);
    if(!mime_registry_loaded.isNull() && mime_registry_loaded == fi.lastModified())
        return true;
    mime_registry_loaded = fi.lastModified();
    qt_mac_loadMimeRegistry(library_file, mime_registry, current_max);
    return true;
}

int QMacPasteboardMimeQt3Any::registerMimeType(const QString &mime)
{
    if(!mime_registry.contains(mime)) {
        if(!loadMimeRegistry()) {
            qWarning("QMacPasteboardMimeAnyQt3Mime: Internal error");
            return 0;
        }
        if(!mime_registry.contains(mime)) {
            if(!library_file.isOpen()) {
                if(!library_file.open(QIODevice::WriteOnly)) {
                    qWarning("QMacPasteboardMimeAnyQt3Mime: Failure to open %s -- %s", library_file.fileName().toLatin1().constData(),
                             library_file.errorString().toLatin1().constData());
                    return false;
                }
            }
            int ret = ++current_max;
            mime_registry_loaded = QFileInfo(library_file).lastModified();
            QTextStream stream(&library_file);
            stream << mime << endl;
            stream << ret << endl;
            mime_registry.insert(mime, ret);
            library_file.flush(); //flush and set mtime
            return ret;
        }
    }
    return mime_registry[mime];
}

QString QMacPasteboardMimeQt3Any::convertorName()
{
    return QLatin1String("Qt3-Any-Mime");
}

QString QMacPasteboardMimeQt3Any::flavorFor(const QString &mime)
{
    const int os_flav = registerMimeType(mime);
    QCFType<CFArrayRef> ids = UTTypeCreateAllIdentifiersForTag(0, kUTTagClassOSType,
                                                               QCFString(UTCreateStringForOSType(os_flav)));
    if(ids) {
        const int type_count = CFArrayGetCount(ids);
        if(type_count) {
            if(type_count > 1)
                qDebug("Can't happen!");
            return QCFString::toQString((CFStringRef)CFArrayGetValueAtIndex(ids, 0));
        }
    }
    return QString();
}

QString QMacPasteboardMimeQt3Any::mimeFor(QString flav)
{
    loadMimeRegistry();
    const int os_flav = UTGetOSTypeFromString(UTTypeCopyPreferredTagWithClass(QCFString(flav), kUTTagClassOSType));
    for(QMap<QString, int>::const_iterator it = mime_registry.constBegin();
        it != mime_registry.constEnd(); ++it) {
        if(it.value() == os_flav)
            return QString::fromLatin1(it.key().toLatin1());
    }
    return QString();
}

bool QMacPasteboardMimeQt3Any::canConvert(const QString &mime, QString flav)
{
    loadMimeRegistry();
    const int os_flav = UTGetOSTypeFromString(UTTypeCopyPreferredTagWithClass(QCFString(flav), kUTTagClassOSType));
    if(mime_registry.contains(mime) && mime_registry[mime] == os_flav)
        return true;
    return false;
}

QVariant QMacPasteboardMimeQt3Any::convertToMime(const QString &, QList<QByteArray>, QString)
{
    qWarning("QMacPasteboardMimeAnyQt3Mime: Cannot write anything!");
    return QVariant();
}

QList<QByteArray> QMacPasteboardMimeQt3Any::convertFromMime(const QString &mime, QVariant data, QString)
{
    QList<QByteArray> ret;
    if (mime == QLatin1String("text/plain")) {
        ret.append(data.toString().toUtf8());
    } else {
        ret.append(data.toByteArray());
    }
    return ret;
}
#endif

void QMacPasteboardMime::initialize()
{
    if(globalMimeList()->isEmpty()) {
        qAddPostRoutine(cleanup_mimes);

        //standard types that we wrap
        new QMacPasteboardMimeTiff;
#ifdef Q_WS_MAC32
        // 10.6 does automatic synthesis to and from PICT to standard image types (like TIFF),
        // so don't bother doing it ourselves, especially since it's not available in 64-bit.
        if (QSysInfo::MacintoshVersion < QSysInfo::MV_10_6)
            new QMacPasteboardMimePict;
#endif
        new QMacPasteboardMimeUnicodeText;
        new QMacPasteboardMimePlainText;
        new QMacPasteboardMimeHTMLText;
        new QMacPasteboardMimeFileUri;
        new QMacPasteboardMimeUrl;
        new QMacPasteboardMimeTypeName;
        new QMacPasteboardMimeVCard;
        //make sure our "non-standard" types are always last! --Sam
        new QMacPasteboardMimeAny;
#ifdef QT3_SUPPORT
        new QMacPasteboardMimeQt3Any;
#endif
    }
}

QMacPasteboardMime*
QMacPasteboardMime::convertor(uchar t, const QString &mime, QString flav)
{
    MimeList *mimes = globalMimeList();
    for(MimeList::const_iterator it = mimes->constBegin(); it != mimes->constEnd(); ++it) {
#ifdef DEBUG_MIME_MAPS
        qDebug("QMacPasteboardMime::convertor: seeing if %s (%d) can convert %s to %d[%c%c%c%c] [%d]",
               (*it)->convertorName().toLatin1().constData(),
               (*it)->type & t, mime.toLatin1().constData(),
               flav, (flav >> 24) & 0xFF, (flav >> 16) & 0xFF, (flav >> 8) & 0xFF, (flav) & 0xFF,
               (*it)->canConvert(mime,flav));
        for(int i = 0; i < (*it)->countFlavors(); ++i) {
            int f = (*it)->flavor(i);
            qDebug("  %d) %d[%c%c%c%c] [%s]", i, f,
                   (f >> 24) & 0xFF, (f >> 16) & 0xFF, (f >> 8) & 0xFF, (f) & 0xFF,
                   (*it)->convertorName().toLatin1().constData());
        }
#endif
        if(((*it)->type & t) && (*it)->canConvert(mime, flav))
            return (*it);
    }
    return 0;
}
QString QMacPasteboardMime::flavorToMime(uchar t, QString flav)
{
    MimeList *mimes = globalMimeList();
    for(MimeList::const_iterator it = mimes->constBegin(); it != mimes->constEnd(); ++it) {
#ifdef DEBUG_MIME_MAPS
        qDebug("QMacMIme::flavorToMime: attempting %s (%d) for flavor %d[%c%c%c%c] [%s]",
               (*it)->convertorName().toLatin1().constData(),
               (*it)->type & t, flav, (flav >> 24) & 0xFF, (flav >> 16) & 0xFF, (flav >> 8) & 0xFF, (flav) & 0xFF,
               (*it)->mimeFor(flav).toLatin1().constData());

#endif
        if((*it)->type & t) {
            QString mimeType = (*it)->mimeFor(flav);
            if(!mimeType.isNull())
                return mimeType;
        }
    }
    return QString();
}

QList<QMacPasteboardMime*> QMacPasteboardMime::all(uchar t)
{
    MimeList ret;
    MimeList *mimes = globalMimeList();
    for(MimeList::const_iterator it = mimes->constBegin(); it != mimes->constEnd(); ++it) {
        if((*it)->type & t)
            ret.append((*it));
    }
    return ret;
}


QT_END_NAMESPACE