C++ Ptr::is方法代码示例

void KMimeTypeTest::testMimeTypeParent()
{
    // All file-like mimetypes inherit from octet-stream
    const KMimeType::Ptr wordperfect = KMimeType::mimeType("application/vnd.wordperfect");
    QVERIFY(wordperfect);
    QCOMPARE(wordperfect->parentMimeTypes().join(","), QString("application/octet-stream"));
    QVERIFY(wordperfect->is("application/octet-stream"));

    QVERIFY(KMimeType::mimeType("image/svg+xml-compressed")->is("application/x-gzip"));

    // Check that msword derives from ole-storage [it didn't in 0.20, but we added it to kde.xml]
    const KMimeType::Ptr msword = KMimeType::mimeType("application/msword");
    QVERIFY(msword);
    const KMimeType::Ptr olestorage = KMimeType::mimeType("application/x-ole-storage");
    QVERIFY(olestorage);
    QVERIFY(msword->is(olestorage->name()));
    QVERIFY(msword->is("application/octet-stream"));

    const KMimeType::Ptr directory = KMimeType::mimeType("inode/directory");
    QVERIFY(directory);
    QCOMPARE(directory->parentMimeTypes().count(), 0);
    QVERIFY(!directory->is("application/octet-stream"));

    // Check that text/x-patch knows that it inherits from text/plain (it says so explicitly)
    const KMimeType::Ptr plain = KMimeType::mimeType("text/plain");
    const KMimeType::Ptr derived = KMimeType::mimeType("text/x-patch");
    QVERIFY(derived);
    QCOMPARE(derived->parentMimeTypes().join(","), plain->name());
    QVERIFY(derived->is("text/plain"));
    QVERIFY(derived->is("application/octet-stream"));

    // Check that application/x-shellscript inherits from application/x-executable
    // (Otherwise KRun cannot start shellscripts...)
    // This is a test for multiple inheritance...
    const KMimeType::Ptr shellscript = KMimeType::mimeType("application/x-shellscript");
    QVERIFY(shellscript);
    QVERIFY(shellscript->is("text/plain"));
    QVERIFY(shellscript->is("application/x-executable"));
    const QStringList shellParents = shellscript->parentMimeTypes();
    QVERIFY(shellParents.contains("text/plain"));
    QVERIFY(shellParents.contains("application/x-executable"));
    QCOMPARE(shellParents.count(), 2); // only the above two
    const QStringList allShellParents = shellscript->allParentMimeTypes();
    QVERIFY(allShellParents.contains("text/plain"));
    QVERIFY(allShellParents.contains("application/x-executable"));
    QVERIFY(allShellParents.contains("application/octet-stream"));
    // Must be least-specific last, i.e. breadth first.
    QCOMPARE(allShellParents.last(), QString("application/octet-stream"));

    // Check that text/x-mrml knows that it inherits from text/plain (implicitly)
    const KMimeType::Ptr mrml = KMimeType::mimeType("text/x-mrml");
    if (!mrml) {
        QSKIP("kdelibs not installed");
    }
    QVERIFY(mrml->is("text/plain"));
    QVERIFY(mrml->is("application/octet-stream"));
}

bool Utilities::isM3u(const QString &url)
{
    if (!url.isEmpty()) {
        KMimeType::Ptr result = KMimeType::findByUrl(KUrl(url), 0, true);
        return (result->is("audio/m3u") ||
                result->is("application/vnd.apple.mpegurl") ||
                result->is("audio/x-mpegurl"));
    } else {
        return false;
    }
}

void AudioPreview::initView( const QString& mimeType )
{
  KUrl url = KUrl::fromPath( m_localFile );
  pic->setText( QString() );
  pic->setPixmap(KIO::pixmapForUrl( url ));
  pic->adjustSize();

  KFileMetaInfo info(m_localFile);
  KMimeType::Ptr mimeptr = KMimeType::mimeType(mimeType);

  QString desc;
  if (info.isValid())
  {
    if (mimeptr->is("audio/mpeg") || mimeptr->is("application/ogg"))
    {
      // following 3 labels might be very long; make sure they get squeezed
      KSqueezedTextLabel *sl;

      sl = new KSqueezedTextLabel(this);
      sl->setText(i18n("Artist: %1", info.item("Artist").value().toString()));

      sl = new KSqueezedTextLabel(this);
      sl->setText(i18n("Title: %1", info.item("Title").value().toString()));

      sl = new KSqueezedTextLabel(this);
      sl->setText(i18n("Comment: %1", info.item("Comment").value().toString()));

      desc.append(i18nc("Bitrate: 160 kbits/s", "Bitrate: %1 %2\n", info.item("Bitrate").value().toString(), info.item("Bitrate").suffix() ));
    }
    desc.append(i18n("Sample rate: %1 %2\n", info.item("Sample Rate").value().toString(), info.item("Sample Rate").suffix() ));
    desc.append(i18n("Length: "));

    /* Calculate length in mm:ss format */
    int length = info.item("Length").value().toInt();
    if (length/60 < 10)
      desc.append("0");
    desc.append(QString("%1:").arg(length/60, 0, 10));
    if (length%60 < 10)
      desc.append("0");
    desc.append(QString("%1\n").arg(length%60, 0, 10));
  }

  description = new QLabel(this);
  description->setText( desc );
  description->adjustSize();
  m_player = KServiceTypeTrader::createInstanceFromQuery<KMediaPlayer::Player>( "KMediaPlayer/Player", QString(), this );
  if ( m_player )
  {
    static_cast<KParts::ReadOnlyPart*>(m_player)->openUrl( url );
    m_player->widget()->show();
  }
}

void IconApplet::dropEvent(QGraphicsSceneDragDropEvent *event)
{
    if (!KUrl::List::canDecode(event->mimeData())) {
        return;
    }

    KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
    if (urls.isEmpty()) {
        return;
    }

    event->accept();

    if (m_url.isEmpty()) {
        setUrl(urls.first());
        //TODO: why we don't call updateConstraints()?
        constraintsEvent(Plasma::FormFactorConstraint);
        return;
    } else if (m_service) {
        KRun::run(*m_service, urls, 0);
        return;
    }

    KMimeType::Ptr mimetype = KMimeType::findByUrl(m_url);

    if (m_url.isLocalFile() &&
        ((mimetype && (mimetype->is("application/x-executable") ||
                       mimetype->is("application/x-shellscript"))) ||
          KDesktopFile::isDesktopFile(m_url.toLocalFile()))) {

        if (KDesktopFile::isDesktopFile(m_url.toLocalFile())) {
            //Extract the command from the Desktop file
            KService service(m_url.toLocalFile());
            KRun::run(service, urls, 0);
            return;
        }

        // Just exec the local executable
        QString params;
        foreach (const KUrl &url, urls) {
            if (url.isLocalFile()) {
                params += ' ' + KShell::quoteArg(url.toLocalFile());
            } else {
                params += ' ' + KShell::quoteArg(url.prettyUrl());
            }
        }

        QString commandStr = KShell::quoteArg(m_url.path());
        KRun::runCommand(commandStr + ' ' + params, 0);
    } else if (mimetype && mimetype->is("inode/directory")) {

void DolphinView::updateURL()
{
    KFileView* fileView = (m_iconsView != 0) ? static_cast<KFileView*>(m_iconsView) :
                                               static_cast<KFileView*>(m_detailsView);

    KFileItem* fileItem = fileView->currentFileItem();
    if (fileItem == 0) {
        return;
    }

    if (fileItem->isDir()) {
        // Prefer the local path over the URL. This assures that the
        // volume space information is correct. Assuming that the URL is media:/sda1,
        // and the local path is /windows/C: For the URL the space info is related
        // to the root partition (and hence wrong) and for the local path the space
        // info is related to the windows partition (-> correct).
        const QString localPath(fileItem->localPath());
        if (localPath.isEmpty()) {
            setURL(fileItem->url());
        }
        else {
            setURL(KURL(localPath));
        }
    }
    else if (fileItem->isFile()) {
       // allow to browse through ZIP and tar files
       KMimeType::Ptr mime = fileItem->mimeTypePtr();
       if (mime->is("application/x-zip")) {
           KURL url = fileItem->url();
           url.setProtocol("zip");
           setURL(url);
       }
       else if (mime->is("application/x-tar") ||
                mime->is("application/x-tarz") ||
                mime->is("application/x-tbz") ||
                mime->is("application/x-tgz") ||
                mime->is("application/x-tzo")) {
           KURL url = fileItem->url();
           url.setProtocol("tar");
           setURL(url);
       }
       else {
           fileItem->run();
       }
    }
    else {
        fileItem->run();
    }
}

void KMimeTypeTest::testAlias()
{
    const KMimeType::Ptr canonical = KMimeType::mimeType("application/xml");
    QVERIFY(canonical);
    KMimeType::Ptr alias = KMimeType::mimeType("text/xml");
    QVERIFY(alias);
    QCOMPARE(alias->name(), QString("application/xml"));

    QVERIFY(alias->is("application/xml"));
    QVERIFY(canonical->is("text/xml"));

    // Test for bug 197346: does nspluginscan see that audio/mp3 already exists?
    bool mustWriteMimeType = !KMimeType::mimeType("audio/mp3");
    QVERIFY(!mustWriteMimeType);
}

void KMimeTypeTest::testMimeTypeInheritancePerformance()
{
    // Check performance of is(). In kde3 the list of mimetypes with previews had 63 items...
    // We could get it with KServiceTypeTrader::self()->query("ThumbCreator") and the "MimeTypes"
    // property, but this would give variable results and requires other modules installed.
    QStringList mimeTypes; mimeTypes << "image/jpeg" << "image/png" << "image/tiff" << "text/plain" << "text/html";
    mimeTypes += mimeTypes;
    mimeTypes += mimeTypes;
    mimeTypes += mimeTypes;
    QCOMPARE(mimeTypes.count(), 40);
    KMimeType::Ptr mime = KMimeType::mimeType("text/x-chdr");
    QVERIFY(mime);
    QTime dt; dt.start();
    QBENCHMARK {
        QString match;
        foreach (const QString &mt, mimeTypes)
        {
            if (mime->is(mt)) {
                match = mt;
                // of course there would normally be a "break" here, but we're testing worse-case
                // performance here
            }
        }
        QCOMPARE(match, QString("text/plain"));
    }
    // Results on David's machine (April 2009):
    // With the KMimeType::is() code that loaded every parent KMimeType:
    // 3.5 msec / 7,000,000 ticks / 5,021,498 instr. loads per iteration
    // After the QHash for parent mimetypes in ksycoca, removing the need to load full mimetypes:
    // 0.57 msec / 1,115,000 ticks / 938,356 instr. loads per iteration
    // After converting the QMap for aliases into a QHash too:
    // 0.48 msec / 960,000 ticks / 791,404 instr. loads per iteration
    // July 2010: After moving KMimeType out of ksycoca:
    // 0.21 msec / 494,000 ticks / 568,345 instr. loads per iteration
}

bool Cb7Creator::create( const QString &path, int width, int height, QImage &img )
{
    Q_UNUSED(width);
    Q_UNUSED(height);

    bool result( false );

    // Detect mime type.
    const KMimeType::Ptr mime = KMimeType::findByFileContent( path );

    if ( mime->is( "application/x-cb7" ) || mime->name() == "application/x-7z-compressed" ) {
        // 7Z archive.
        result = Cb7Creator::extract7zImage( path );
    } else {
        result = false;
    }

    if( !m_comicCover || !result ) {
        kDebug( KIO_THUMB )<<"Error creating the cb7 thumbnail.";
        return false;
    }

    // Copy the extracted image over to KIO::ThumbCreator's img reference.
    img = m_comicCover->copy();
    delete m_comicCover;

    return result;
}

QString KFileItem::mimeComment() const
{
    const QString displayType = d->m_entry.stringValue( KIO::UDSEntry::UDS_DISPLAY_TYPE );
    if (!displayType.isEmpty())
        return displayType;

    KMimeType::Ptr mType = determineMimeType();

    bool isLocalUrl;
    KUrl url = mostLocalUrl(isLocalUrl);

    KMimeType::Ptr mime = mimeTypePtr();
    // This cannot move to kio_file (with UDS_DISPLAY_TYPE) because it needs
    // the mimetype to be determined, which is done here, and possibly delayed...
    if (isLocalUrl && mime->is("application/x-desktop")) {
        KDesktopFile cfg( url.toLocalFile() );
        QString comment = cfg.desktopGroup().readEntry( "Comment" );
        if (!comment.isEmpty())
            return comment;
    }

    QString comment = mType->comment( url );
    //kDebug() << "finding comment for " << url.url() << " : " << d->m_pMimeType->name();
    if (!comment.isEmpty())
        return comment;
    else
        return mType->name();
}

bool MimeTypeChecker::isWantedCollection( const Collection &collection, const QString &wantedMimeType )
{
  if ( wantedMimeType.isEmpty() || !collection.isValid() )
    return false;

  const QStringList contentMimeTypes = collection.contentMimeTypes();
  if ( contentMimeTypes.isEmpty() )
    return false;

  foreach ( const QString &mimeType, contentMimeTypes ) {
    if ( mimeType.isEmpty() )
      continue;

    if ( mimeType == wantedMimeType )
      return true;

    KMimeType::Ptr mimeTypePtr = KMimeType::mimeType( mimeType, KMimeType::ResolveAliases );
    if ( mimeTypePtr.isNull() )
      continue;

   if ( mimeTypePtr->is( wantedMimeType ) )
     return true;
  }

  return false;
}

QString KFileItem::iconName() const
{
    if (d->m_useIconNameCache && !d->m_iconName.isEmpty()) {
        return d->m_iconName;
    }

    d->m_iconName = d->m_entry.stringValue( KIO::UDSEntry::UDS_ICON_NAME );
    if (!d->m_iconName.isEmpty()) {
        d->m_useIconNameCache = d->m_bMimeTypeKnown;
        return d->m_iconName;
    }

    bool isLocalUrl;
    KUrl url = mostLocalUrl(isLocalUrl);

    KMimeType::Ptr mime = mimeTypePtr();
    if (isLocalUrl && mime->is("application/x-desktop")) {
        d->m_iconName = iconFromDesktopFile(url.toLocalFile());
        if (!d->m_iconName.isEmpty()) {
            d->m_useIconNameCache = d->m_bMimeTypeKnown;
            return d->m_iconName;
        }
    }

    // KDE5: handle .directory files here too, and get rid of
    // KFolderMimeType and the url argument in KMimeType::iconName().

    d->m_iconName = mime->iconName(url);
    d->m_useIconNameCache = d->m_bMimeTypeKnown;
    //kDebug() << "finding icon for" << url << ":" << d->m_iconName;
    return d->m_iconName;
}

bool Utilities::isFSDirectory(const QString& url)
{
    if (!url.isEmpty()) {
        KMimeType::Ptr result = KMimeType::findByUrl(KUrl(url), 0, true);
        return result->is("inode/directory");
    } else {
        return false;
    }
}

int main(int argc, char **argv) {
	static KCmdLineOptions options[] = {
		{"show", I18N_NOOP("Show window on startup"), 0},
		{"kwalletd", I18N_NOOP("For use by kwalletd only"), 0},
		{"+name", I18N_NOOP("A wallet name"), 0},
		KCmdLineLastOption
	};

	KAboutData about("kwalletmanager", I18N_NOOP("KDE Wallet Manager"), "1.1",
		I18N_NOOP("KDE Wallet Management Tool"),
		KAboutData::License_GPL,
		I18N_NOOP("(c) 2003,2004 George Staikos"), 0,
		"http://www.kde.org/");

	about.addAuthor("George Staikos", I18N_NOOP("Primary author and maintainer"), "[email protected]");
	about.addAuthor("Isaac Clerencia", I18N_NOOP("Developer"), "[email protected]");

	KCmdLineArgs::init(argc, argv, &about);
	KCmdLineArgs::addCmdLineOptions(options);

	if (!KUniqueApplication::start()) {
		return 0;
	}

	MyApp a;

	KWalletManager wm;
	wm.setCaption(i18n("KDE Wallet Manager"));

	a.setMainWidget(&wm);

	KGlobal::dirs()->addResourceType("kwallet", "share/apps/kwallet");

	KCmdLineArgs *args = KCmdLineArgs::parsedArgs();

	if (args->isSet("show")) {
		wm.show();
	}

	if (args->isSet("kwalletd")) {
		wm.kwalletdLaunch();
	}

	for (int i = 0; i < args->count(); ++i) {
		QString fn = QFileInfo(args->arg(i)).absFilePath();
		KMimeType::Ptr ptr;
		if (QFile::exists(fn) &&
			(ptr = KMimeType::findByFileContent(fn)) &&
			ptr->is("application/x-kde-wallet")) {
			wm.openWalletFile(fn);
		} else {
			wm.openWallet(args->arg(i));
		}
	}
	args->clear();
	return a.exec();
}

void KNewFileMenuPrivate::executeStrategy()
{
    m_tempFileToDelete = m_copyData.tempFileToDelete();
    const QString src = m_copyData.sourceFileToCopy();
    QString chosenFileName = expandTilde(m_copyData.chosenFileName(), true);

    if (src.isEmpty())
        return;
    KUrl uSrc(src);
    if (uSrc.isLocalFile()) {
        // In case the templates/.source directory contains symlinks, resolve
        // them to the target files. Fixes bug #149628.
        KFileItem item(uSrc, QString(), KFileItem::Unknown);
        if (item.isLink())
            uSrc.setPath(item.linkDest());

        if (!m_copyData.m_isSymlink) {
            // If the file is not going to be detected as a desktop file, due to a
            // known extension (e.g. ".pl"), append ".desktop". #224142.
            QFile srcFile(uSrc.toLocalFile());
            if (srcFile.open(QIODevice::ReadOnly)) {
                KMimeType::Ptr wantedMime = KMimeType::findByUrl(uSrc);
                KMimeType::Ptr mime = KMimeType::findByNameAndContent(m_copyData.m_chosenFileName, srcFile.read(1024));
                //kDebug() << "mime=" << mime->name() << "wantedMime=" << wantedMime->name();
                if (!mime->is(wantedMime->name()))
                    chosenFileName += wantedMime->mainExtension();
            }
        }
    }

    // The template is not a desktop file [or it's a URL one]
    // Copy it.
    KUrl::List::const_iterator it = m_popupFiles.constBegin();
    for (; it != m_popupFiles.constEnd(); ++it)
    {
        KUrl dest(*it);
        dest.addPath(KIO::encodeFileName(chosenFileName));

        KUrl::List lstSrc;
        lstSrc.append(uSrc);
        KIO::Job* kjob;
        if (m_copyData.m_isSymlink) {
            kjob = KIO::symlink(src, dest);
            // This doesn't work, FileUndoManager registers new links in copyingLinkDone,
            // which KIO::symlink obviously doesn't emit... Needs code in FileUndoManager.
            //KIO::FileUndoManager::self()->recordJob(KIO::FileUndoManager::Link, lstSrc, dest, kjob);
        } else {
            //kDebug(1203) << "KIO::copyAs(" << uSrc.url() << "," << dest.url() << ")";
            KIO::CopyJob * job = KIO::copyAs(uSrc, dest);
            job->setDefaultPermissions(true);
            kjob = job;
            KIO::FileUndoManager::self()->recordJob(KIO::FileUndoManager::Copy, lstSrc, dest, job);
        }
        kjob->ui()->setWindow(m_parentWidget);
        QObject::connect(kjob, SIGNAL(result(KJob*)), q, SLOT(slotResult(KJob*)));
    }
}

bool Utilities::isPls(const QString &url)
{
    if (!url.isEmpty()) {
        KMimeType::Ptr result = KMimeType::findByUrl(KUrl(url), 0, true);
        return result->is("audio/x-scpls");
    } else {
        return false;
    }
}