QLastResortMimes Class Reference

Inheritance diagram for QLastResortMimes:

Public Functions
bool	canConvertFromMime (const FORMATETC &formatetc, const QMimeData *mimeData) const
	Returns true if the converter can convert from the mimeData to the format specified in formatetc. More...
bool	canConvertToMime (const QString &mimeType, IDataObject *pDataObj) const
	Returns true if the converter can convert to the mimeType from the available formats in pDataObj. More...
bool	convertFromMime (const FORMATETC &formatetc, const QMimeData *mimeData, STGMEDIUM *pmedium) const
	Convert the mimeData to the format specified in formatetc. More...
QVariant	convertToMime (const QString &mime, IDataObject *pDataObj, QVariant::Type preferredType) const
	Returns a QVariant containing the converted data for mimeType from pDataObj. More...
QVector< FORMATETC >	formatsForMime (const QString &mimeType, const QMimeData *mimeData) const
	Returns a QVector of FORMATETC structures representing the different windows clipboard formats that can be provided for the mimeType from the mimeData. More...
QString	mimeForFormat (const FORMATETC &formatetc) const
	Returns the mime type that will be created form the format specified in formatetc, or an empty string if this converter does not support formatetc. More...
	QLastResortMimes ()
Public Functions inherited from QWindowsMime
	QWindowsMime ()
	Constructs a new conversion object, adding it to the globally accessed list of available converters. More...
virtual	~QWindowsMime ()
	Destroys a conversion object, removing it from the global list of available converters. More...

Properties
QMap< int, QString >	formats

Static Private Attributes
static QStringList	excludeList
static QStringList	ianaTypes

Additional Inherited Members
Static Public Functions inherited from QWindowsMime
static int	registerMimeType (const QString &mime)
	Registers the MIME type mime, and returns an ID number identifying the format on Windows. More...

Detailed Description

Definition at line 1157 of file qmime_win.cpp.

Constructors and Destructors

QLastResortMimes()

QLastResortMimes::QLastResortMimes

(

)

Definition at line 1181 of file qmime_win.cpp.

{
    //MIME Media-Types
    if (!ianaTypes.size()) {
        ianaTypes.append(QLatin1String("application/"));
        ianaTypes.append(QLatin1String("audio/"));
        ianaTypes.append(QLatin1String("example/"));
        ianaTypes.append(QLatin1String("image/"));
        ianaTypes.append(QLatin1String("message/"));
        ianaTypes.append(QLatin1String("model/"));
        ianaTypes.append(QLatin1String("multipart/"));
        ianaTypes.append(QLatin1String("text/"));
        ianaTypes.append(QLatin1String("video/"));
    }
    //Types handled by other classes
    if (!excludeList.size()) {
        excludeList.append(QLatin1String("HTML Format"));
        excludeList.append(QLatin1String("UniformResourceLocator"));
        excludeList.append(QLatin1String("text/html"));
        excludeList.append(QLatin1String("text/plain"));
        excludeList.append(QLatin1String("text/uri-list"));
        excludeList.append(QLatin1String("application/x-qt-image"));
        excludeList.append(QLatin1String("application/x-color"));
    }
}

Functions

canConvertFromMime()

bool QLastResortMimes::canConvertFromMime ( const FORMATETC &  formatetc, const QMimeData *  mimeData  ) const

virtual

Returns true if the converter can convert from the mimeData to the format specified in formatetc.

All subclasses must reimplement this pure virtual function.

Implements QWindowsMime.

Definition at line 1207 of file qmime_win.cpp.

{
    // really check
#ifndef QT_NO_DRAGANDDROP
    return formatetc.tymed & TYMED_HGLOBAL
        && (formats.contains(formatetc.cfFormat)
        && QInternalMimeData::hasFormatHelper(formats.value(formatetc.cfFormat), mimeData));
#else
    Q_UNUSED(mimeData);
    Q_UNUSED(formatetc);
    return formatetc.tymed & TYMED_HGLOBAL
        && formats.contains(formatetc.cfFormat);
#endif //QT_NO_DRAGANDDROP
}

canConvertToMime()

bool QLastResortMimes::canConvertToMime ( const QString &  mimeType, IDataObject *  pDataObj  ) const

virtual

Returns true if the converter can convert to the mimeType from the available formats in pDataObj.

All subclasses must reimplement this pure virtual function.

Implements QWindowsMime.

Definition at line 1263 of file qmime_win.cpp.

{
    if (isCustomMimeType(mimeType)) {
        QString clipFormat = customMimeType(mimeType);
        int cf = RegisterClipboardFormat(reinterpret_cast<const wchar_t *> (clipFormat.utf16()));
        return canGetData(cf, pDataObj);
    } else if (formats.keys(mimeType).isEmpty()) {
        // if it is not in there then register it an see if we can get it
        int cf = QWindowsMime::registerMimeType(mimeType);
        return canGetData(cf, pDataObj);
    } else {
        return canGetData(formats.key(mimeType), pDataObj);
    }
    return false;
}

convertFromMime()

bool QLastResortMimes::convertFromMime ( const FORMATETC &  formatetc, const QMimeData *  mimeData, STGMEDIUM *  pmedium  ) const

virtual

Convert the mimeData to the format specified in formatetc.

The converted data should then be placed in pmedium structure.

Return true if the conversion was successful.

All subclasses must reimplement this pure virtual function.

Implements QWindowsMime.

Definition at line 1222 of file qmime_win.cpp.

{
#ifndef QT_NO_DRAGANDDROP
    return canConvertFromMime(formatetc, mimeData)
        && setData(QInternalMimeData::renderDataHelper(formats.value(getCf(formatetc)), mimeData), pmedium);
#else
    Q_UNUSED(mimeData);
    Q_UNUSED(formatetc);
    Q_UNUSED(pmedium);
    return false;
#endif //QT_NO_DRAGANDDROP
}

convertToMime()

QVariant QLastResortMimes::convertToMime ( const QString &  mimeType, IDataObject *  pDataObj, QVariant::Type  preferredType  ) const

virtual

Returns a QVariant containing the converted data for mimeType from pDataObj.

If possible the QVariant should be of the preferredType to avoid needless conversions.

All subclasses must reimplement this pure virtual function.

Implements QWindowsMime.

Definition at line 1279 of file qmime_win.cpp.

{
    Q_UNUSED(preferredType);
    QVariant val;
    if (canConvertToMime(mimeType, pDataObj)) {
        QByteArray data;
        if (isCustomMimeType(mimeType)) {
            QString clipFormat = customMimeType(mimeType);
            int cf = RegisterClipboardFormat(reinterpret_cast<const wchar_t *> (clipFormat.utf16()));
            data = getData(cf, pDataObj);
        } else if (formats.keys(mimeType).isEmpty()) {
            int cf = QWindowsMime::registerMimeType(mimeType);
            data = getData(cf, pDataObj);
        } else {
            data = getData(formats.key(mimeType), pDataObj);
        }
        if (!data.isEmpty())
            val = data; // it should be enough to return the data and let QMimeData do the rest.
    }
    return val;
}

formatsForMime()

QVector< FORMATETC > QLastResortMimes::formatsForMime ( const QString &  mimeType, const QMimeData *  mimeData  ) const

virtual

Returns a QVector of FORMATETC structures representing the different windows clipboard formats that can be provided for the mimeType from the mimeData.

All subclasses must reimplement this pure virtual function.

Implements QWindowsMime.

Definition at line 1235 of file qmime_win.cpp.

{
    QVector<FORMATETC> formatetcs;
    if (!formats.keys(mimeType).isEmpty()) {
        formatetcs += setCf(formats.key(mimeType));
    } else if (!excludeList.contains(mimeType, Qt::CaseInsensitive)){
        // register any other available formats
        int cf = QWindowsMime::registerMimeType(mimeType);
        QLastResortMimes *that = const_cast<QLastResortMimes *>(this);
        that->formats.insert(cf, mimeType);
        formatetcs += setCf(cf);
    }
    return formatetcs;
}

mimeForFormat()

QString QLastResortMimes::mimeForFormat ( const FORMATETC &  formatetc ) const

virtual

Returns the mime type that will be created form the format specified in formatetc, or an empty string if this converter does not support formatetc.

All subclasses must reimplement this pure virtual function.

Implements QWindowsMime.

Definition at line 1301 of file qmime_win.cpp.

{
    QString format = formats.value(getCf(formatetc));
    if (!format.isEmpty())
        return format;

    wchar_t buffer[256];
    int len = GetClipboardFormatName(getCf(formatetc), buffer, 256);

    if (len) {
        QString clipFormat = QString::fromWCharArray(buffer, len);
#ifndef QT_NO_DRAGANDDROP
        if (QInternalMimeData::canReadData(clipFormat))
            format = clipFormat;
        else if((formatetc.cfFormat >= 0xC000)){
            //create the mime as custom. not registered.
            if (!excludeList.contains(clipFormat, Qt::CaseInsensitive)) {
                //check if this is a mime type
                bool ianaType = false;
                int sz = ianaTypes.size();
                for (int i = 0; i < sz; i++) {
                    if (clipFormat.startsWith(ianaTypes[i], Qt::CaseInsensitive)) {
                        ianaType =  true;
                        break;
                    }
                }
                if (!ianaType)
                    format = QLatin1String(x_qt_windows_mime) + clipFormat + QLatin1Char('\"');
                else
                    format = clipFormat;
            }
        }
#endif //QT_NO_DRAGANDDROP
    }

    return format;
}

Properties

excludeList

QStringList QLastResortMimes::excludeList

staticprivate

Definition at line 1175 of file qmime_win.cpp.

formats

QMap<int, QString> QLastResortMimes::formats

private

Definition at line 1173 of file qmime_win.cpp.

Referenced by formatsForMime().

ianaTypes

QStringList QLastResortMimes::ianaTypes

staticprivate

Definition at line 1174 of file qmime_win.cpp.

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The documentation for this class was generated from the following file:

• /src/gui/kernel/qmime_win.cpp