C++ KTempFile::setAutoDelete方法代码示例

QString copyfile(const QString &filename)
{
    kdDebug(500) << "Copying file " << filename << endl;
    QString result;
    QFile f(filename);
    if(f.open(IO_ReadOnly))
    {
        KTempFile temp;
        temp.setAutoDelete(false);
        QFile *tf = temp.file();
        if(tf)
        {
            char buffer[0xFFFF];
            int b = 0;
            while((b = f.readBlock(buffer, 0xFFFF)) > 0)
            {
                if(tf->writeBlock(buffer, b) != b)
                    break;
            }
            tf->close();
            if(b > 0)
                temp.setAutoDelete(true);
            else
            {
                kdDebug(500) << "File copied to " << temp.name() << endl;
                result = temp.name();
            }
        }
        else
            temp.setAutoDelete(true);
        f.close();
    }
    return result;
}

void BaseTreeView::slotCreateFile()
{
  bool ok;
  QString fileName = KInputDialog::getText(i18n("Create New File"), i18n("File name:"), "", &ok, this);
  if (ok)
  {
    KURL url = currentURL();
    if (currentKFileTreeViewItem()->isDir())
      url.setPath(url.path() + "/" + fileName);
    else
      url.setPath(url.directory() + "/" + fileName);
    if (QExtFileInfo::exists(url, false, this))
    {
      KMessageBox::error(this, i18n("<qt>Cannot create file, because a file named <b>%1</b> already exists.</qt>").arg(fileName), i18n("Error Creating File"));
      return;
    }
    KTempFile *tempFile = new KTempFile(tmpDir);
    tempFile->setAutoDelete(true);
    tempFile->close();
    if (QuantaNetAccess::copy(KURL::fromPathOrURL(tempFile->name()), url, this))
    {
      emit openFile(url);
    }
    delete tempFile;
  }
}

void KJumpingCube::saveGame(bool saveAs)
{
   if(saveAs || gameURL.isEmpty())
   {
      int result=0;
      KURL url;

      do
      {
         url = KFileDialog::getSaveURL(gameURL.url(),"*.kjc",this,0);

         if(url.isEmpty())
            return;

         // check filename
         QRegExp pattern("*.kjc",true,true);
         if(!pattern.exactMatch(url.filename()))
         {
            url.setFileName( url.filename()+".kjc" );
         }

         if(KIO::NetAccess::exists(url,false,this))
         {
            QString mes=i18n("The file %1 exists.\n"
               "Do you want to overwrite it?").arg(url.url());
            result = KMessageBox::warningContinueCancel(this, mes, QString::null, i18n("Overwrite"));
            if(result==KMessageBox::Cancel)
               return;
         }
      }
      while(result==KMessageBox::No);

      gameURL=url;
   }

   KTempFile tempFile;
   tempFile.setAutoDelete(true);
   KSimpleConfig config(tempFile.name());

   config.setGroup("KJumpingCube");
   config.writeEntry("Version",KJC_VERSION);
   config.setGroup("Game");
   view->saveGame(&config);
   config.sync();

   if(KIO::NetAccess::upload( tempFile.name(),gameURL,this ))
   {
      QString s=i18n("game saved as %1");
      s=s.arg(gameURL.url());
      statusBar()->message(s,MESSAGE_TIME);
   }
   else
   {
      KMessageBox::sorry(this,i18n("There was an error in saving file\n%1").arg(gameURL.url()));
   }
}

void KOrganizerPlugin::processDropEvent( QDropEvent *event )
{
  QString text;

  KABC::VCardConverter converter;
  if ( KVCardDrag::canDecode( event ) && KVCardDrag::decode( event, text ) ) {
    KABC::Addressee::List contacts = converter.parseVCards( text );
    KABC::Addressee::List::Iterator it;

    QStringList attendees;
    for ( it = contacts.begin(); it != contacts.end(); ++it ) {
      QString email = (*it).fullEmail();
      if ( email.isEmpty() )
        attendees.append( (*it).realName() + "<>" );
      else
        attendees.append( email );
    }

    interface()->openEventEditor( i18n( "Meeting" ), QString::null, QString::null,
                                  attendees );
    return;
  }

  if ( QTextDrag::decode( event, text ) ) {
    kdDebug(5602) << "DROP:" << text << endl;
    interface()->openEventEditor( text );
    return;
  }

  KPIM::MailList mails;
  if ( KPIM::MailListDrag::decode( event, mails ) ) {
    if ( mails.count() != 1 ) {
      KMessageBox::sorry( core(),
                          i18n("Drops of multiple mails are not supported." ) );
    } else {
      KPIM::MailSummary mail = mails.first();
      QString txt = i18n("From: %1\nTo: %2\nSubject: %3").arg( mail.from() )
                    .arg( mail.to() ).arg( mail.subject() );

      KTempFile tf;
      tf.setAutoDelete( true );
      QString uri = QString::fromLatin1("kmail:") + QString::number( mail.serialNumber() );
      tf.file()->writeBlock( event->encodedData( "message/rfc822" ) );
      tf.close();
      interface()->openEventEditor( i18n("Mail: %1").arg( mail.subject() ), txt,
                                    uri, tf.name(), QStringList(), "message/rfc822" );
    }
    return;
  }

  KMessageBox::sorry( core(), i18n("Cannot handle drop events of type '%1'.")
                              .arg( event->format() ) );
}

bool VCardXXPort::doExport( const KURL &url, const QString &data )
{
  KTempFile tmpFile;
  tmpFile.setAutoDelete( true );

  QTextStream stream( tmpFile.file() );
  stream.setEncoding( QTextStream::UnicodeUTF8 );

  stream << data;
  tmpFile.close();

  return KIO::NetAccess::upload( tmpFile.name(), url, parentWidget() );
}

KIO_EXPORT void KIO::pasteData(const KURL &u, const QByteArray &_data)
{
    KURL new_url = getNewFileName(u, QString::null);
    // We could use KIO::put here, but that would require a class
    // for the slotData call. With NetAccess, we can do a synchronous call.

    if(new_url.isEmpty())
        return;

    KTempFile tempFile;
    tempFile.setAutoDelete(true);
    tempFile.dataStream()->writeRawBytes(_data.data(), _data.size());
    tempFile.close();

    (void)KIO::NetAccess::upload(tempFile.name(), new_url, 0);
}

bool KSnapshot::save( const KURL& url )
{
    if ( KIO::NetAccess::exists( url, false, this ) ) {
        const QString title = i18n( "File Exists" );
        const QString text = i18n( "<qt>Do you really want to overwrite <b>%1</b>?</qt>" ).arg(url.prettyURL());
        if (KMessageBox::Continue != KMessageBox::warningContinueCancel( this, text, title, i18n("Overwrite") ) ) 
        {
            return false;
        }
    }

    QString type( KImageIO::type(url.path()) );
    if ( type.isNull() )
	type = "PNG";

    bool ok = false;

    if ( url.isLocalFile() ) {
	KSaveFile saveFile( url.path() );
	if ( saveFile.status() == 0 ) {
	    if ( snapshot.save( saveFile.file(), type.latin1() ) )
		ok = saveFile.close();
	}
    }
    else {
	KTempFile tmpFile;
        tmpFile.setAutoDelete( true );
	if ( tmpFile.status() == 0 ) {
	    if ( snapshot.save( tmpFile.file(), type.latin1() ) ) {
		if ( tmpFile.close() )
		    ok = KIO::NetAccess::upload( tmpFile.name(), url, this );
	    }
	}
    }

    QApplication::restoreOverrideCursor();
    if ( !ok ) {
	kdWarning() << "KSnapshot was unable to save the snapshot" << endl;

	QString caption = i18n("Unable to save image");
	QString text = i18n("KSnapshot was unable to save the image to\n%1.")
	               .arg(url.prettyURL());
	KMessageBox::error(this, text, caption);
    }

    return ok;
}

bool KSnapshot::save( const KURL& url )
{
    QString type( KImageIO::type(url.path()) );
    if ( type.isNull() )
        type = "PNG";

    bool ok = false;

    if ( url.isLocalFile() ) {
        KSaveFile saveFile( url.path() );
        if ( saveFile.status() == 0 ) {
            if ( snapshot.save( saveFile.file(), type.latin1() ) )
                ok = saveFile.close();
        }
    }
    else {
        KTempFile tmpFile;
        tmpFile.setAutoDelete( true );
        if ( tmpFile.status() == 0 ) {
            if ( snapshot.save( tmpFile.file(), type.latin1() ) ) {
                if ( tmpFile.close() )
                    ok = KIO::NetAccess::upload( tmpFile.name(), url, this );
            }
        }
    }

    QApplication::restoreOverrideCursor();
    if ( !ok ) {
        kdWarning() << "KSnapshot was unable to save the snapshot" << endl;

        QString caption = i18n("Unable to Save Image");
        QString text = i18n("KSnapshot was unable to save the image to\n%1.")
            .arg(url.prettyURL());
        KMessageBox::error(this, text, caption);
    }

    return ok;
}

bool Q3DGraph::save(const KURL& url)
{
	if ( KIO::NetAccess::exists( url, false, this ) ) //The file already exist
		return false;

	QString type(KImageIO::type(url.path()));
	if (type.isNull())
		type = "PNG";

	bool ok = false;

	if(url.isLocalFile()) {
		KSaveFile saveFile(url.path());
		if ( saveFile.status() == 0 ) {
			if (toPixmap().save( saveFile.file(), type.latin1() ) )
				ok = saveFile.close();
		}
	} else {
		KTempFile tmpFile;
		tmpFile.setAutoDelete(true);
		if(tmpFile.status()==0) {
			if(toPixmap().save( tmpFile.file(), type.latin1())) {
				if(tmpFile.close())
					ok = KIO::NetAccess::upload( tmpFile.name(), url, this );
			}
		}
	}
	
//	QApplication::restoreOverrideCursor();
	
	if (!ok) {
		qDebug("Was unable to save it");
	}

	return ok;
}

void EventArchiver::archiveIncidences( Calendar* calendar, const QDate& /*limitDate*/, QWidget* widget, const Incidence::List& incidences, bool /*withGUI*/)
{
  FileStorage storage( calendar );

  // Save current calendar to disk
  KTempFile tmpFile;
  tmpFile.setAutoDelete(true);
  storage.setFileName( tmpFile.name() );
  if ( !storage.save() ) {
    kdDebug(5850) << "EventArchiver::archiveEvents(): Can't save calendar to temp file" << endl;
    return;
  }

  // Duplicate current calendar by loading in new calendar object
  CalendarLocal archiveCalendar( KOPrefs::instance()->mTimeZoneId );

  FileStorage archiveStore( &archiveCalendar );
  archiveStore.setFileName( tmpFile.name() );
  if (!archiveStore.load()) {
    kdDebug(5850) << "EventArchiver::archiveEvents(): Can't load calendar from temp file" << endl;
    return;
  }

  // Strip active events from calendar so that only events to be archived
  // remain. This is not really efficient, but there is no other easy way.
  QStringList uids;
  Incidence::List allIncidences = archiveCalendar.rawIncidences();
  Incidence::List::ConstIterator it;
  for( it = incidences.begin(); it != incidences.end(); ++it ) {
    uids << (*it)->uid();
  }
  for( it = allIncidences.begin(); it != allIncidences.end(); ++it ) {
    if ( !uids.contains( (*it)->uid() ) ) {
      archiveCalendar.deleteIncidence( *it );
    }
  }

  // Get or create the archive file
  KURL archiveURL( KOPrefs::instance()->mArchiveFile );
  QString archiveFile;

  if ( KIO::NetAccess::exists( archiveURL, true, widget ) ) {
    if( !KIO::NetAccess::download( archiveURL, archiveFile, widget ) ) {
      kdDebug(5850) << "EventArchiver::archiveEvents(): Can't download archive file" << endl;
      return;
    }
    // Merge with events to be archived.
    archiveStore.setFileName( archiveFile );
    if ( !archiveStore.load() ) {
      kdDebug(5850) << "EventArchiver::archiveEvents(): Can't merge with archive file" << endl;
      return;
    }
  } else {
    archiveFile = tmpFile.name();
  }

  // Save archive calendar
  if ( !archiveStore.save() ) {
    KMessageBox::error(widget,i18n("Cannot write archive file %1.").arg( archiveStore.fileName() ));
    return;
  }

  // Upload if necessary
  KURL srcUrl;
  srcUrl.setPath(archiveFile);
  if (srcUrl != archiveURL) {
    if ( !KIO::NetAccess::upload( archiveFile, archiveURL, widget ) ) {
      KMessageBox::error(widget,i18n("Cannot write archive to final destination."));
      return;
    }
  }

  KIO::NetAccess::removeTempFile(archiveFile);

  // Delete archived events from calendar
  for( it = incidences.begin(); it != incidences.end(); ++it ) {
    calendar->deleteIncidence( *it );
  }
  emit eventsDeleted();
}

void KSANEOCR::startOCRAD( )
{
    ocradDialog *ocrDia = static_cast<ocradDialog*>(m_ocrProcessDia);

    m_ocrResultImage = ocrDia->orfUrl();
    const QString cmd = ocrDia->getOCRCmd();

    // if( m_ocrResultImage.isEmpty() )
    {
	/* The url is empty. Start the program to fill up a temp file */
	m_ocrResultImage = ImgSaver::tempSaveImage( m_img, "BMP", 8 ); // m_tmpFile->name();
	kdDebug(28000) << "The new image name is <" << m_ocrResultImage << ">" << endl;
    }

    m_ocrImagePBM = ImgSaver::tempSaveImage( m_img, "PBM", 1 );

    /* temporar file for orf result */
    KTempFile *tmpOrf = new KTempFile( QString(), ".orf" );
    tmpOrf->setAutoDelete( false );
    tmpOrf->close();
    m_tmpOrfName = QFile::encodeName(tmpOrf->name());


    if( daemon )
    {
	delete( daemon );
	daemon = 0;
    }

    daemon = new KProcess;
    Q_CHECK_PTR(daemon);

    *daemon << cmd;
    *daemon << QString("-x");
    *daemon <<  m_tmpOrfName;                   // the orf result file
    *daemon << QFile::encodeName( m_ocrImagePBM );      // The name of the image
    *daemon << QString("-l");
    *daemon << QString::number( ocrDia->layoutDetectionMode());

    KConfig *konf = KGlobal::config ();
    KConfigGroupSaver( konf, CFG_GROUP_OCRAD );

    QString format = konf->readEntry( CFG_OCRAD_FORMAT, "utf8");
    *daemon << QString("-F");
    *daemon << format;

    QString charset = konf->readEntry( CFG_OCRAD_CHARSET, "iso-8859-15");
    *daemon << QString("-c");
    *daemon << charset;


    QString addArgs = konf->readEntry( CFG_OCRAD_EXTRA_ARGUMENTS, QString() );

    if( !addArgs.isEmpty() )
    {
	kdDebug(28000) << "Setting additional args from config for ocrad: " << addArgs << endl;
	*daemon << addArgs;
    }

    m_ocrResultText = "";

    connect(daemon, SIGNAL(processExited(KProcess *)),
	    this,   SLOT(  ocradExited(KProcess*)));
    connect(daemon, SIGNAL(receivedStdout(KProcess *, char*, int)),
	    this,   SLOT(  ocradStdIn(KProcess*, char*, int)));
    connect(daemon, SIGNAL(receivedStderr(KProcess *, char*, int)),
	    this,   SLOT(  ocradStdErr(KProcess*, char*, int)));

    if (!daemon->start(KProcess::NotifyOnExit, KProcess::All))
    {
	kdDebug(28000) <<  "Error starting ocrad-daemon!" << endl;
    }
    else
    {
	kdDebug(28000) << "Start OK" << endl;

    }
    delete tmpOrf;
}

KDE_EXPORT void kimgio_eps_read(QImageIO *image)
{
    kdDebug(399) << "kimgio EPS: starting..." << endl;

    FILE *ghostfd;
    int x1, y1, x2, y2;
    // QTime dt;
    // dt.start();

    QString cmdBuf;
    QString tmp;

    QIODevice *io = image->ioDevice();
    Q_UINT32 ps_offset, ps_size;

    // find start of PostScript code
    if(!seekToCodeStart(io, ps_offset, ps_size))
        return;

    // find bounding box
    if(!bbox(io, &x1, &y1, &x2, &y2))
    {
        kdError(399) << "kimgio EPS: no bounding box found!" << endl;
        return;
    }

    KTempFile tmpFile;
    tmpFile.setAutoDelete(true);

    if(tmpFile.status() != 0)
    {
        kdError(399) << "kimgio EPS: no temp file!" << endl;
        return;
    }
    tmpFile.close(); // Close the file, we just want the filename

    // x1, y1 -> translation
    // x2, y2 -> new size

    x2 -= x1;
    y2 -= y1;
    // kdDebug(399) << "origin point: " << x1 << "," << y1 << "  size:" << x2 << "," << y2 << endl;
    double xScale = 1.0;
    double yScale = 1.0;
    bool needsScaling = false;
    int wantedWidth = x2;
    int wantedHeight = y2;

    if(image->parameters())
    {
        // Size forced by the caller
        QStringList params = QStringList::split(':', image->parameters());
        if(params.count() >= 2 && x2 != 0.0 && y2 != 0.0)
        {
            wantedWidth = params[0].toInt();
            xScale = (double)wantedWidth / (double)x2;
            wantedHeight = params[1].toInt();
            yScale = (double)wantedHeight / (double)y2;
            // kdDebug(399) << "wanted size:" << wantedWidth << "x" << wantedHeight << endl;
            // kdDebug(399) << "scaling:" << xScale << "," << yScale << endl;
            needsScaling = true;
        }
    }

    // create GS command line

    cmdBuf = "gs -sOutputFile=";
    cmdBuf += tmpFile.name();
    cmdBuf += " -q -g";
    tmp.setNum(wantedWidth);
    cmdBuf += tmp;
    tmp.setNum(wantedHeight);
    cmdBuf += "x";
    cmdBuf += tmp;
    cmdBuf +=
        " -dSAFER -dPARANOIDSAFER -dNOPAUSE -sDEVICE=ppm -c "
        "0 0 moveto "
        "1000 0 lineto "
        "1000 1000 lineto "
        "0 1000 lineto "
        "1 1 254 255 div setrgbcolor fill "
        "0 0 0 setrgbcolor - -c showpage quit";

    // run ghostview

    ghostfd = popen(QFile::encodeName(cmdBuf), "w");

    if(ghostfd == 0)
    {
        kdError(399) << "kimgio EPS: no GhostScript?" << endl;
        return;
    }

    fprintf(ghostfd, "\n%d %d translate\n", -qRound(x1 * xScale), -qRound(y1 * yScale));
    if(needsScaling)
        fprintf(ghostfd, "%g %g scale\n", xScale, yScale);

    // write image to gs

    io->reset();       // Go back to start of file to give all the file to GhostScript
//.........这里部分代码省略.........

    void
    Crash::crashHandler( int /*signal*/ )
    {
        // we need to fork to be able to get a
        // semi-decent bt - I dunno why
        const pid_t pid = ::fork();

        if( pid < 0 )
        {
            std::cout << "forking crash reporter failed\n";
            // continuing now can't do no good
            _exit( 1 );
        }
        else if ( pid == 0 )
        {
            // we are the child process (the result of the fork)
            std::cout << "Pana is crashing...sorry this will be a minute...\n";

            QString subject = APP_VERSION " ";
            QString body = i18n(
                    "Pana has crashed.\n\n"
                    "Please help us fix it by clicking send on the crash report, "
                    "If you have time please add a brief description of what was happening just before the crash.\n\n"
                    "Thank you very much.\n\n" );
            body += i18n( "\n\n\n\n\n\n"
                    "The information below is to help identify the problem.\n\n\n ");


            body += "=== Debug information ===\n"
                    "Version:    " APP_VERSION "\n"
                    "Engine:     %1\n"
                    "Build date: " __DATE__ "\n"
                    "CC version: " __VERSION__ "\n"
                    "KDElibs:    " KDE_VERSION_STRING "\n"
                    "Qt:         %2\n"
                    "TagLib:     %3.%4.%5\n"
                    "CPU count:  %6\n";

            QString cpucount = "unknown";
#ifdef __linux__
            QString line;
            uint cpuCount = 0;
            QFile cpuinfo( "/proc/cpuinfo" );
            if ( cpuinfo.open( IO_ReadOnly ) ) {
                while ( cpuinfo.readLine( line, 20000 ) != -1 ) {
                    if ( line.startsWith( "processor" ) ) {
                        ++cpuCount;
                    }
                }
            }
            cpucount = QString::number( cpuCount );
#endif


            body = body.arg( PanaConfig::soundSystem() )
                    .arg( qVersion() )
                    .arg( TAGLIB_MAJOR_VERSION )
                    .arg( TAGLIB_MINOR_VERSION )
                    .arg( TAGLIB_PATCH_VERSION )
                    .arg( cpucount );

            #ifdef NDEBUG
            body += "NDEBUG:     true";
            #endif
            body += '\n';

            /// obtain the backtrace with gdb

            KTempFile temp;
            temp.setAutoDelete( true );

            const int handle = temp.handle();

//             QCString gdb_command_string =
//                     "file panaapp\n"
//                     "attach " + QCString().setNum( ::getppid() ) + "\n"
//                     "bt\n" "echo \\n\n"
//                     "thread apply all bt\n";

            const QCString gdb_batch =
                    "bt\n"
                    "echo \\n\\n\n"
                    "bt full\n"
                    "echo \\n\\n\n"
                    "echo ==== (gdb) thread apply all bt ====\\n\n"
                    "thread apply all bt\n";

            ::write( handle, gdb_batch, gdb_batch.length() );
            ::fsync( handle );

            // so we can read stderr too
            ::dup2( fileno( stdout ), fileno( stderr ) );


            QCString gdb;
            gdb  = "gdb --nw -n --batch -x ";
            gdb += temp.name().latin1();
            gdb += " panaapp ";
            gdb += QCString().setNum( ::getppid() );

//.........这里部分代码省略.........

void BaseTreeView::slotCreateSiteTemplate()
{
   QString startDir;
   if (Project::ref()->hasProject())
   {
     startDir = Project::ref()->templateURL().url();
   } else
   {
     startDir = locateLocal("data", resourceDir + "templates/");
   }
   KURL targetURL;
   bool valid;
   do {
     valid = false;
     targetURL = KFileDialog::getSaveURL(startDir, "*.tgz", this, i18n("Create Site Template File"));
     if (targetURL.isEmpty())
       return;
     if (targetURL.url().startsWith(KURL::fromPathOrURL(locateLocal("data", resourceDir + "templates/")).url()))
       valid = true;
    if (Project::ref()->hasProject() && targetURL.url().startsWith(Project::ref()->templateURL().url()))
      valid = true;
    if (!valid)
      KMessageBox::error(this, i18n("Templates should be saved to the local or project template folder."));
   }while (!valid);

   KURL url = currentURL();
   //TODO: Implement creation from remote folders as well. Requires downloading of the files to a
   //temporary directory
   if (url.protocol() != "file")
   {
       KMessageBox::sorry(this, i18n("Currently you can create site templates only from local folders."), i18n("Unsupported Feature"));
       return;
   }

   KTempFile *tempFile = new KTempFile(tmpDir);
   tempFile->setAutoDelete(true);
   tempFile->close();
   KTar tar(tempFile->name(), "application/x-gzip");
   bool error = false;
   if (tar.open(IO_WriteOnly))
   {
      KURL::List fileList = QExtFileInfo::allFiles(url, "*", this);
      for (KURL::List::Iterator it = fileList.begin(); it != fileList.end(); ++it)
      {
         if (!(*it).path().endsWith("/"))
         {
           QFile f((*it).path());
           if (f.open(IO_ReadOnly))
           {
              QByteArray buffer(f.readAll());
              if (!tar.writeFile((*it).path().remove(url.path()), "user", "group", buffer.size(), buffer.data()))
              {
                  error = true;
              }
              f.close();
           } else
             error = true;
         }
      }
      tar.close();
   } else
      error = true;
   if (!QuantaNetAccess::copy(KURL::fromPathOrURL(tempFile->name()), targetURL, m_parent, false))
     error = true;

   if (error)
     KMessageBox::error(this, i18n("<qt>There was an error while creating the site template tarball.<br>Check that you can read the files from <i>%1</i>, you have write access to <i>%2</i> and that you have enough free space in your temporary folder.</qt>").arg(url.prettyURL(0, KURL::StripFileProtocol)).arg(targetURL.prettyURL(0, KURL::StripFileProtocol)), i18n("Template Creation Error"));
   delete tempFile;
}

// Helper method for scaleWithGhostScript. Returns 1 on success, 0 on error, -1 if nothing generated
// (in which case another 'output device' can be tried)
int KoPictureEps::tryScaleWithGhostScript(QImage &image, const QSize& size, const int resolutionx, const int resolutiony, const char* device )
// Based on the code of the file kdelibs/kimgio/eps.cpp
{
    kdDebug(30003) << "Sampling with GhostScript, using device \"" << device << "\" (in KoPictureEps::tryScaleWithGhostScript)" << endl;

    KTempFile tmpFile;
    tmpFile.setAutoDelete(true);

    if ( tmpFile.status() )
    {
        kdError(30003) << "No KTempFile! (in KoPictureEps::tryScaleWithGhostScript)" << endl;
        return 0; // error
    }

    const int wantedWidth = size.width();
    const int wantedHeight = size.height();
    const double xScale = double(size.width()) / double(m_boundingBox.width());
    const double yScale = double(size.height()) / double(m_boundingBox.height());

    // create GS command line

    QString cmdBuf ( "gs -sOutputFile=" );
    cmdBuf += KProcess::quote(tmpFile.name());
    cmdBuf += " -q -g";
    cmdBuf += QString::number( wantedWidth );
    cmdBuf += "x";
    cmdBuf += QString::number( wantedHeight );

    if ( ( resolutionx > 0) && ( resolutiony > 0) )
    {
#if 0
        // Do not play with resolution for now.
        // It brings more problems at print than solutions
        cmdBuf += " -r";
        cmdBuf += QString::number( resolutionx );
        cmdBuf += "x";
        cmdBuf += QString::number( resolutiony );
#endif
    }

    cmdBuf += " -dSAFER -dPARANOIDSAFER -dNOPAUSE -sDEVICE=";
    cmdBuf += device;
    //cmdBuf += " -c 255 255 255 setrgbcolor fill 0 0 0 setrgbcolor";
    cmdBuf += " -";
    cmdBuf += " -c showpage quit";

    // run ghostview

    FILE* ghostfd = popen (QFile::encodeName(cmdBuf), "w");

    if ( ghostfd == 0 )
    {
        kdError(30003) << "No connection to GhostScript (in KoPictureEps::tryScaleWithGhostScript)" << endl;
        return 0; // error
    }

    // The translation is needed as GhostScript (7.07) cannot handle negative values in the bounding box otherwise.
    fprintf (ghostfd, "\n%d %d translate\n", -qRound(m_boundingBox.left()*xScale), -qRound(m_boundingBox.top()*yScale));
    fprintf (ghostfd, "%g %g scale\n", xScale, yScale);

    // write image to gs

    fwrite( m_rawData.data() + m_psStreamStart, sizeof(char), m_psStreamLength, ghostfd);

    pclose ( ghostfd );

    // load image
    if( !image.load (tmpFile.name()) )
    {
        // It failed - maybe the device isn't supported by gs
        return -1;
    }
    if ( image.size() != size ) // this can happen due to rounding problems
    {
        //kdDebug(30003) << "fixing size to " << size.width() << "x" << size.height()
        //          << " (was " << image.width() << "x" << image.height() << ")" << endl;
        image = image.scale( size ); // hmm, smoothScale instead?
    }
    kdDebug(30003) << "Image parameters: " << image.width() << "x" << image.height() << "x" << image.depth() << endl;
    return 1; // success
}