C++ KTempFile::status方法代码示例

bool GMXXXPort::exportContacts( const KABC::AddresseeList &list, const QString& )
{
  KURL url = KFileDialog::getSaveURL( ":xxport_gmx", GMX_FILESELECTION_STRING );
  if ( url.isEmpty() )
      return true;

  if ( !url.isLocalFile() ) {
    KTempFile tmpFile;
    if ( tmpFile.status() != 0 ) {
      QString txt = i18n( "<qt>Unable to open file <b>%1</b>.%2.</qt>" );
      KMessageBox::error( parentWidget(), txt.arg( url.url() )
                          .arg( strerror( tmpFile.status() ) ) );
      return false;
    }

    doExport( tmpFile.file(), list );
    tmpFile.close();

    return KIO::NetAccess::upload( tmpFile.name(), url, parentWidget() );
  } else {
    QString filename = url.path();
    QFile file( filename );

    if ( !file.open( IO_WriteOnly ) ) {
      QString txt = i18n( "<qt>Unable to open file <b>%1</b>.</qt>" );
      KMessageBox::error( parentWidget(), txt.arg( filename ) );
      return false;
    }

    doExport( &file, list );
    file.close();

    return true;
  }
}

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;
}

const KstTimezones::ZoneMap KstTimezones::allZones()
{
    // Have we already done all the hard work? If not, create the cache.
    if (m_zones)
        return *m_zones;
    m_zones = new ZoneMap();

    // Go read the database.
    //
    // On Windows, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones
    // is the place to look. The TZI binary value is the TIME_ZONE_INFORMATION structure.
    //
    // For Unix its all easy except knowing where to look. Try the LSB location first.
    QFile f;
    m_zoneinfoDir = "/usr/share/zoneinfo";
    f.setName(m_zoneinfoDir + "/zone.tab");
    if (!f.open(IO_ReadOnly))
    {
        m_zoneinfoDir = "/usr/lib/zoneinfo";
        f.setName(m_zoneinfoDir + "/zone.tab");
        if (!f.open(IO_ReadOnly))
        {
            m_zoneinfoDir = ::getenv("TZDIR");
            f.setName(m_zoneinfoDir + "/zone.tab");
            if (m_zoneinfoDir.isEmpty() || !f.open(IO_ReadOnly))
            {
                // Solaris support. Synthesise something that looks like a zone.tab.
                //
                // /bin/grep -h ^Zone /usr/share/lib/zoneinfo/src/* | /bin/awk '{print "??\t+9999+99999\t" $2}'
                //
                // where the country code is set to "??" and the lattitude/longitude
                // values are dummies.
                m_zoneinfoDir = "/usr/share/lib/zoneinfo";
                KTempFile temp;
                KShellProcess reader;
                reader << "/bin/grep" << "-h" << "^Zone" << m_zoneinfoDir << "/src/*" << temp.name() << "|" <<
                    "/bin/awk" << "'{print \"??\\t+9999+99999\\t\" $2}'";
                // Note the use of blocking here...it is a trivial amount of data!
                temp.close();
                reader.start(KProcess::Block);
                f.setName(temp.name());
                if (!temp.status() || !f.open(IO_ReadOnly))
                {
                    return *m_zones;
                }
            }
        }
    }

    // Parse the zone.tab.
    QTextStream str(&f);
    QRegExp lineSeparator("[ \t]");
    QRegExp ordinateSeparator("[+-]");
    KSharedPtr<KstTimezoneSource> db(new KstTimezoneSource(m_zoneinfoDir));
    while (!str.atEnd())
    {
        QString line = str.readLine();
        if (line.isEmpty() || '#' == line[0])
            continue;
        QStringList tokens = KStringHandler::perlSplit(lineSeparator, line, 4);
        if (tokens.count() < 3)
        {
            continue;
        }

        // Got three tokens. Now check for two ordinates plus first one is "".
        QStringList ordinates = KStringHandler::perlSplit(ordinateSeparator, tokens[1], 2);
        if (ordinates.count() < 2)
        {
            continue;
        }

        float latitude = convertCoordinate(ordinates[1]);
        float longitude = convertCoordinate(ordinates[2]);

        // Add entry to list.
        if (tokens[0] == "??")
            tokens[0] = "";
        KstTimezone *timezone = new KstTimezone(db, tokens[2], tokens[0], latitude, longitude, tokens[3]);
        add(timezone);
    }
    f.close();
    return *m_zones;
}

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.........

// 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
}