C++ QVariant::typeName方法代码示例

void ParameterEdit::editItem()
{
    if(_table->currentSelection() != -1) {
	bool do_update = false;
	int r = _table->currentRow();
	Q3CheckTableItem * ctItem = (Q3CheckTableItem*)_table->item(r, 0);
        if(ctItem == 0)
          return;
	bool active = ctItem->isChecked();
	QString name = _table->text(r, 1);
	QVariant var = _params[name];
	BoolEdit * be = 0;
	IntEdit * ie = 0;
	DoubleEdit * de = 0;
	StringEdit * se = 0;
	ListEdit * le = 0;
	switch(var.type()) {
	case QVariant::Bool:
	    be = new BoolEdit(this);
	    be->_name->setText(name);
	    be->_active->setChecked(active);
	    be->setValue(var.toBool());
	    if(be->exec() == QDialog::Accepted) {
		var = QVariant(be->value(), 0);
		active = be->_active->isChecked();
		do_update = TRUE;
	    }
	    delete be;
	    be = 0;
	    break;
	case QVariant::Int:
	    ie = new IntEdit(this);
	    ie->_name->setText(name);
	    ie->_active->setChecked(active);
	    ie->_value->setText(QString::number(var.toInt()));
	    if(ie->exec() == QDialog::Accepted) {
		var = QVariant(ie->_value->text().toInt());
		active = ie->_active->isChecked();
		do_update = TRUE;
	    }
	    delete ie;
	    ie = 0;
	    break;
	case QVariant::Double:
	    de = new DoubleEdit(this);
	    de->_name->setText(name);
	    de->_active->setChecked(active);
	    de->_value->setText(QString::number(var.toDouble()));
	    if(de->exec() == QDialog::Accepted) {
		var = QVariant(de->_value->text().toDouble());
		active = de->_active->isChecked();
		do_update = TRUE;
	    }
	    delete de;
	    de = 0;
	    break;
	case QVariant::String:
	    se = new StringEdit(this);
	    se->_name->setText(name);
	    se->_active->setChecked(active);
	    se->_value->setText(var.toString());
	    if(se->exec() == QDialog::Accepted) {
		var = QVariant(se->_value->text());
		active = se->_active->isChecked();
		do_update = TRUE;
	    }
	    delete se;
	    se = 0;
	    break;
	case QVariant::List:
	    le = new ListEdit(this);
	    le->_name->setText(name);
	    le->_active->setChecked(active);
	    le->setList(var.toList());
	    if(le->exec() == QDialog::Accepted) {
		var = QVariant(le->list());
		active = le->_active->isChecked();
		do_update = TRUE;
	    }
	    delete le;
	    le = 0;
	    break;
	default:
	    QMessageBox::warning(this, tr("Warning"), QString(tr("I do not know how to edit QVariant type %1.")).arg(var.typeName()));
	};
		
	if(do_update) {
	    _params[name] = var;
	    ctItem->setChecked(active);
	    _table->setText(r, 1, name);
	    _table->setText(r, 2, var.typeName());
	    _table->setText(r, 3, var.toString());
	}
    }
}

    void evaluation()
    {
      QFETCH( QString, string );
      QFETCH( bool, evalError );
      QFETCH( QVariant, result );

      QgsExpression exp( string );
      QCOMPARE( exp.hasParserError(), false );
      if ( exp.hasParserError() )
        qDebug() << exp.parserErrorString();

      QVariant res = exp.evaluate();
      if ( exp.hasEvalError() )
        qDebug() << exp.evalErrorString();
      if ( res.type() != result.type() )
      {
        qDebug() << "got " << res.typeName() << " instead of " << result.typeName();
      }
      //qDebug() << res.type() << " " << result.type();
      //qDebug() << "type " << res.typeName();
      QCOMPARE( exp.hasEvalError(), evalError );

      QCOMPARE( res.type(), result.type() );
      switch ( res.type() )
      {
        case QVariant::Invalid:
          break; // nothing more to check
        case QVariant::Int:
          QCOMPARE( res.toInt(), result.toInt() );
          break;
        case QVariant::Double:
          QCOMPARE( res.toDouble(), result.toDouble() );
          break;
        case QVariant::String:
          QCOMPARE( res.toString(), result.toString() );
          break;
        case QVariant::Date:
          QCOMPARE( res.toDate(), result.toDate() );
          break;
        case QVariant::DateTime:
          QCOMPARE( res.toDateTime(), result.toDateTime() );
          break;
        case QVariant::Time:
          QCOMPARE( res.toTime(), result.toTime() );
          break;
        case QVariant::UserType:
        {
          if ( res.userType() == qMetaTypeId<QgsExpression::Interval>() )
          {
            QgsExpression::Interval inter = res.value<QgsExpression::Interval>();
            QgsExpression::Interval gotinter = result.value<QgsExpression::Interval>();
            QCOMPARE( inter.seconds(), gotinter.seconds() );
          }
          else
          {
            QFAIL( "unexpected user type" );
          }
          break;
        }
        default:
          Q_ASSERT( false ); // should never happen
      }
    }

void QDBusAbstractInterfacePrivate::property(const QMetaProperty &mp, QVariant &where) const
{
    if (!isValid || !canMakeCalls()) {   // can't make calls
        where.clear();
        return;
    }

    // is this metatype registered?
    const char *expectedSignature = "";
    if (int(mp.type()) != QMetaType::QVariant) {
        expectedSignature = QDBusMetaType::typeToSignature(where.userType());
        if (expectedSignature == 0) {
            qWarning("QDBusAbstractInterface: type %s must be registered with Qt D-Bus before it can be "
                     "used to read property %s.%s",
                     mp.typeName(), qPrintable(interface), mp.name());
            lastError = QDBusError(QDBusError::Failed,
                                   QString::fromLatin1("Unregistered type %1 cannot be handled")
                                   .arg(QLatin1String(mp.typeName())));
            where.clear();
            return;
        }
    }

    // try to read this property
    QDBusMessage msg = QDBusMessage::createMethodCall(service, path,
                       QLatin1String(DBUS_INTERFACE_PROPERTIES),
                       QLatin1String("Get"));
    QDBusMessagePrivate::setParametersValidated(msg, true);
    msg << interface << QString::fromUtf8(mp.name());
    QDBusMessage reply = connection.call(msg, QDBus::Block, timeout);

    if (reply.type() != QDBusMessage::ReplyMessage) {
        lastError = QDBusError(reply);
        where.clear();
        return;
    }
    if (reply.signature() != QLatin1String("v")) {
        QString errmsg = QLatin1String("Invalid signature `%1' in return from call to "
                                       DBUS_INTERFACE_PROPERTIES);
        lastError = QDBusError(QDBusError::InvalidSignature, errmsg.arg(reply.signature()));
        where.clear();
        return;
    }

    QByteArray foundSignature;
    const char *foundType = 0;
    QVariant value = qvariant_cast<QDBusVariant>(reply.arguments().at(0)).variant();

    if (value.userType() == where.userType() || mp.userType() == QMetaType::QVariant
            || (expectedSignature[0] == 'v' && expectedSignature[1] == '\0')) {
        // simple match
        where = value;
        return;
    }

    if (value.userType() == qMetaTypeId<QDBusArgument>()) {
        QDBusArgument arg = qvariant_cast<QDBusArgument>(value);

        foundType = "user type";
        foundSignature = arg.currentSignature().toLatin1();
        if (foundSignature == expectedSignature) {
            // signatures match, we can demarshall
            QDBusMetaType::demarshall(arg, where.userType(), where.data());
            return;
        }
    } else {
        foundType = value.typeName();
        foundSignature = QDBusMetaType::typeToSignature(value.userType());
    }

    // there was an error...
    QString errmsg = QLatin1String("Unexpected `%1' (%2) when retrieving property `%3.%4' "
                                   "(expected type `%5' (%6))");
    lastError = QDBusError(QDBusError::InvalidSignature,
                           errmsg.arg(QString::fromLatin1(foundType),
                                      QString::fromLatin1(foundSignature),
                                      interface,
                                      QString::fromUtf8(mp.name()),
                                      QString::fromLatin1(mp.typeName()),
                                      QString::fromLatin1(expectedSignature)));
    where.clear();
    return;
}

VALUE RubyType<QVariant>::toVALUE(const QVariant& v)
{
    #ifdef QROSS_RUBY_VARIANT_DEBUG
        qrossdebug( QString("RubyType<QVariant>::toVALUE variant.toString=%1 variant.typeid=%2 variant.typeName=%3").arg(v.toString()).arg(v.type()).arg(v.typeName()) );
    #endif

    switch( v.type() ) {
        case QVariant::Int:
            return RubyType<int>::toVALUE(v.toInt());
        case QVariant::UInt:
            return RubyType<uint>::toVALUE(v.toUInt());
        case QVariant::Double:
            return RubyType<double>::toVALUE(v.toDouble());
        case QVariant::ByteArray:
            return RubyType<QByteArray>::toVALUE(v.toByteArray());
        case QVariant::String:
            return RubyType<QString>::toVALUE(v.toString());
        case QVariant::Bool:
            return RubyType<bool>::toVALUE(v.toBool());
        case QVariant::StringList:
            return RubyType<QStringList>::toVALUE(v.toStringList());
        case QVariant::Map:
            return RubyType<QVariantMap>::toVALUE(v.toMap());
        case QVariant::List:
            return RubyType<QVariantList>::toVALUE(v.toList());
        case QVariant::LongLong:
            return RubyType<qlonglong>::toVALUE(v.toLongLong());
        case QVariant::ULongLong:
            return RubyType<qlonglong>::toVALUE(v.toULongLong());

        case QVariant::Size:
            return RubyType<QSize>::toVALUE(v.toSize());
        case QVariant::SizeF:
            return RubyType<QSizeF>::toVALUE(v.toSizeF());
        case QVariant::Point:
            return RubyType<QPoint>::toVALUE(v.toPoint());
        case QVariant::PointF:
            return RubyType<QPointF>::toVALUE(v.toPointF());
        case QVariant::Rect:
            return RubyType<QRect>::toVALUE(v.toRect());
        case QVariant::RectF:
            return RubyType<QRectF>::toVALUE(v.toRectF());

        case QVariant::Color:
            return RubyType<QColor>::toVALUE( v.value<QColor>() );
        case QVariant::Url:
            return RubyType<QUrl>::toVALUE(v.toUrl());

        case QVariant::Date:
            return RubyType<QDate>::toVALUE( v.value<QDate>() );
        case QVariant::Time:
            return RubyType<QTime>::toVALUE( v.value<QTime>() );
        case QVariant::DateTime:
            return RubyType<QDateTime>::toVALUE( v.value<QDateTime>() );

        case QVariant::Invalid: {
            #ifdef QROSS_RUBY_VARIANT_DEBUG
                qrossdebug( QString("RubyType<QVariant>::toVALUE variant=%1 is QVariant::Invalid. Returning Qnil.").arg(v.toString()) );
            #endif
            return Qnil;
        } // fall through

        case QVariant::UserType: {
            #ifdef QROSS_RUBY_VARIANT_DEBUG
                qrossdebug( QString("RubyType<QVariant>::toVALUE variant=%1 is QVariant::UserType. Trying to cast now.").arg(v.toString()) );
            #endif
        } // fall through

        default: {
            if( strcmp(v.typeName(),"float") == 0 ) {
                #ifdef QROSS_RUBY_VARIANT_DEBUG
                    qrossdebug( QString("RubyType<QVariant>::toVALUE Casting '%1' to double").arg(v.typeName()) );
                #endif
                return RubyType<double>::toVALUE(v.toDouble());
            }

            if( strcmp(v.typeName(),"Qross::VoidList") == 0 ) {
                VoidList list = v.value<VoidList>();
                Qross::MetaTypeHandler* handler = Qross::Manager::self().metaTypeHandler(list.typeName);
                #ifdef QROSS_RUBY_VARIANT_DEBUG
                    qrossdebug( QString("RubyType<QVariant>::toVALUE Casting '%1' to QList<%2> with %3 items, hasHandler=%4").arg(v.typeName()).arg(list.typeName.constData()).arg(list.count()).arg(handler ? "true" : "false") );
                #endif
                QVariantList l;
                foreach(void* ptr, list) {
                    if( handler ) {
                        l << handler->callHandler(ptr);
                    }
                    else {
                        QVariant v;
                        v.setValue(ptr);
                        l << v;
                    }
                }
                return RubyType<QVariantList>::toVALUE(l);
            }

            if( qVariantCanConvert< Qross::Object::Ptr >(v) ) {
                #ifdef QROSS_RUBY_VARIANT_DEBUG
                    qrossdebug( QString("RubyType<QVariant>::toPyObject Casting '%1' to Qross::Object::Ptr").arg(v.typeName()) );
                #endif
//.........这里部分代码省略.........

//.........这里部分代码省略.........

      for (j = 0; 
	   ((j < stringNodeList.length()) && (it != stringList.end()));
	   j++)
      {
	// get the current string element
	stringElem = stringNodeList.item(j).toElement();

	// set it to the current string
	variantToElement(QVariant(*it), stringElem);

	// iterate to the next string
	++it;
      }
      
      // more nodes in previous stringlist then current, remove excess nodes
      if (stringNodeList.count() > stringList.count())
      {
	while (j < stringNodeList.count())
	  e.removeChild(stringNodeList.item(j).toElement());
      }
      else if (j <stringList.count())
      {
	while (it != stringList.end())
	{
	  // create a new element
	  stringElem = m_doc.createElement("string");
	
	  // set it to the currentstring
	  variantToElement(QVariant(*it), stringElem);

	  // append it to the current element
	  e.appendChild(stringElem);

	  // iterate to the next string
	  ++it;
	}
      }
    }
    break;

#if QT_VERSION >= 300
  case QVariant::KeySequence:
    e.setTagName("key");
    e.setAttribute("sequence", (QString)v.toKeySequence());
    break;
#endif

  case QVariant::ByteArray: // this is only for [u]int64_t
    {
      e.setTagName("uint64");
      QByteArray ba = v.toByteArray();

      // make sure this only handles [u]int64_t's
      if (ba.size() != sizeof(uint64_t))
      {
	qWarning("Don't know how to persist variant of type: %s (%d) (size=%d)!",
		 v.typeName(), v.type(), ba.size());
	ok = false;
	break;
      }

      // convert the data back into a uint64_t
      uint64_t num = *(uint64_t*)ba.data();
      
      QChar buff[33];
      QChar* p = &buff[32];
      const char* digitSet = "0123456789abcdef";
      int len = 0;

      // construct the string
      do 
      {
        *--p = digitSet[((int)(num%16))];
        num = num >> 4; // divide by 16
        len++;
      } while ( num );

      // store it in a QString
      QString storage;
      storage.setUnicode(p, len);
      
      // set the value
      e.setAttribute("value", storage);
    }
    break;

#if 0
  case QVariant::List:
  case QVaraint::Map:
#endif
  default:
    qWarning("Don't know how to persist variant of type: %s (%d)!",
	     v.typeName(), v.type());
    ok = false;
    break;
  }

  return ok;
}

//.........这里部分代码省略.........
		break;

	case(QVariant::String) :
		encoded = encodeString(data.toString());
		break;

	case(QVariant::ByteArray) :
		encoded = encodeByteArray(data.toByteArray());
		break;

	case(QVariant::List) :
	{
		encoded = QString::fromLatin1("[") + optionalIndentedNewLine;
		QVariantList list = data.toList();
		for (int i = 0; i < list.count(); ++i)
		{
			if (i) encoded += QString::fromLatin1(",") + optionalIndentedNewLine;
			encoded += encodeData(list.at(i), options, errorMessage, indentation, indentedLinePrefix);
			if (errorMessage && !errorMessage->isNull())
				return QString();
		}
		encoded += optionalNewLine + QString::fromLatin1("]");
	}
						 break;

	case(QVariant::StringList) :
	{
		encoded = QString::fromLatin1("[") + optionalIndentedNewLine;
		QStringList list = data.toStringList();
		for (int i = 0; i < list.count(); ++i)
		{
			if (i) encoded += QString::fromLatin1(",") + optionalIndentedNewLine;
			encoded += encodeData(list.at(i), options, errorMessage, indentation, indentedLinePrefix);
			if (errorMessage && !errorMessage->isNull())
				return QString();
		}
		encoded += optionalNewLine + QString::fromLatin1("]");
	}
							   break;

	case(QVariant::Map) :
	{
		encoded = QString::fromLatin1("{") + optionalIndentedNewLine;
		QVariantMap map = data.toMap();
		QVariantMap::iterator i;
		bool first = true;
		for (i = map.begin(); i != map.end(); ++i)
		{
			if (!first)
				encoded += QString::fromLatin1(",") + optionalIndentedNewLine;
			first = false;
			encoded += encodeString(i.key());
			encoded += options.testFlag(Compact) ? QString::fromLatin1(":") : QString::fromLatin1(" : ");
			encoded += encodeData(i.value(), options, errorMessage, indentation, indentedLinePrefix);
			if (errorMessage && !errorMessage->isNull())
				return QString();
		}
		encoded += optionalNewLine + QString::fromLatin1("}");
	}
						break;

	case(QVariant::Hash) :
	{
		encoded = QString::fromLatin1("{") + optionalIndentedNewLine;
		QVariantHash hash = data.toHash();
		QVariantHash::iterator i;
		bool first = true;
		for (i = hash.begin(); i != hash.end(); ++i)
		{
			if (!first)
				encoded += QString::fromLatin1(",") + optionalIndentedNewLine;
			first = false;
			encoded += encodeString(i.key());
			encoded += options.testFlag(Compact) ? QString::fromLatin1(":") : QString::fromLatin1(" : ");
			encoded += encodeData(i.value(), options, errorMessage, indentation, indentedLinePrefix);
			if (errorMessage && !errorMessage->isNull())
				return QString();
		}
		encoded += optionalNewLine + QString::fromLatin1("}");
	}
						 break;

	case(QVariant::Invalid) :
		encoded = QString::fromLatin1("null");
		break;

	default:
		if (!options.testFlag(EncodeUnknownTypesAsNull))
		{
			if (errorMessage)
				*errorMessage = QString::fromLatin1("Can't encode this type of data to JSON: %1")
				.arg(data.typeName());
			return QString();
		}
		encoded = QString::fromLatin1("null");
		break;
	}

	return encoded;
}

//! [0]
QDataStream out(...);
QVariant v(123);                // The variant now contains an int
int x = v.toInt();              // x = 123
out << v;                       // Writes a type tag and an int to out
v = QVariant("hello");          // The variant now contains a QByteArray
v = QVariant(tr("hello"));      // The variant now contains a QString
int y = v.toInt();              // y = 0 since v cannot be converted to an int
QString s = v.toString();       // s = tr("hello")  (see QObject::tr())
out << v;                       // Writes a type tag and a QString to out
...
QDataStream in(...);            // (opening the previously written stream)
in >> v;                        // Reads an Int variant
int z = v.toInt();              // z = 123
qDebug("Type is %s",            // prints "Type is int"
        v.typeName());
v = v.toInt() + 100;            // The variant now hold the value 223
v = QVariant(QStringList());
//! [0]


//! [1]
QVariant x, y(QString()), z(QString(""));
x.convert(QVariant::Int);
// x.isNull() == true
// y.isNull() == true, z.isNull() == false
//! [1]


//! [2]
QVariant variant;

void Settings::setting_changed(const QString& module_name, const QString& name, const QVariant& value)
{
	if (!map_.contains(module_name))
	{
		cgogn_log_debug("Settings::setting_changed") << "Trying to modify a setting of a non-existing module \"" << module_name.toStdString() << "\".";
	} else
	{
		if (!map_[module_name].contains(name))
		{
			cgogn_log_debug("Settings::setting_changed") << "Trying to modify a non-existing setting \"" << name.toStdString() << "\" of the module \"" << module_name.toStdString() << "\".";
		} else {
			QVariant& v = map_[module_name][name];
			if (v.type() != value.type())
			{
				cgogn_log_debug("Settings::setting_changed") << "Cannot replace a setting of type \"" << v.typeName() << "\" by another setting of type \"" << value.typeName() << "\".";
			} else {
				v = value;
			}
		}
	}
}

// convert the variant to the given type and return true if it worked.
// if the type is not known, guess it from the variant and set.
// return false if conversion failed.
static bool checkType(QVariant &var, QDBusType &type)
{
    if (!type.isValid()) {
        // guess it from the variant
        type = QDBusType::guessFromVariant(var);
        return type.isValid();
    }

    int id = var.userType(); 
    
    if (type.dbusType() == DBUS_TYPE_VARIANT) {
        // this is a non symmetrical operation:
        // nest a QVariant if we want variant and it isn't so
        if (id != QDBusTypeHelper<QVariant>::id()) {
            QVariant tmp = var;
            var = QDBusTypeHelper<QVariant>::toVariant(tmp);
        }
        return true;
    }

    switch (id) {
    case QVariant::Bool:
    case QMetaType::Short: 
    case QMetaType::UShort:
    case QMetaType::UChar:
    case QVariant::Int:
    case QVariant::UInt:
    case QVariant::LongLong:
    case QVariant::ULongLong:
    case QVariant::Double:
    case QVariant::String:
        if (type.isBasic())
            // QVariant can handle this on its own
            return true;

        // cannot handle this
        qWarning("Invalid conversion from %s to '%s'", var.typeName(),
                 type.dbusSignature().constData());
        var.clear();
        return false;

    case QVariant::ByteArray:
        // make sure it's an "ARRAY of BYTE"
        if (type.qvariantType() != QVariant::ByteArray) {
            qWarning("Invalid conversion from %s to '%s'", var.typeName(),
                     type.dbusSignature().constData());
            var.clear();
            return false;
        }
        return true;

    case QVariant::StringList:
        // make sure it's "ARRAY of STRING"
        if (type.qvariantType() != QVariant::StringList) {
            qWarning("Invalid conversion from %s to '%s'", var.typeName(),
                     type.dbusSignature().constData());
            var.clear();
            return false;
        }
        return true;

    case QVariant::List:
        // could be either struct or array
        if (type.dbusType() != DBUS_TYPE_ARRAY && type.dbusType() != DBUS_TYPE_STRUCT) {
            qWarning("Invalid conversion from %s to '%s'", var.typeName(),
                     type.dbusSignature().constData());
            var.clear();
            return false;
        }
        
        return true;

    case QVariant::Map:
        if (!type.isMap()) {
            qWarning("Invalid conversion from %s to '%s'", var.typeName(),
                     type.dbusSignature().constData());
            var.clear();
            return false;
        }

        return true;

    case QVariant::Invalid: {
        // create an empty variant
        void *null = 0;
        var = QVariant(type.qvariantType(), null);
        break;
    }

    default:
        if (id == QDBusTypeHelper<QVariant>::id()) {
            // if we got here, it means the match above for DBUS_TYPE_VARIANT didn't work
            qWarning("Invalid conversion from nested variant to '%s'",
                     type.dbusSignature().constData());
            return false;
        } else if (type.dbusType() == DBUS_TYPE_ARRAY) {
            int subType = type.arrayElement().dbusType();
//.........这里部分代码省略.........

void ParameterEdit::editItem(int row)
{
    bool do_update = false;
    bool active = _table->item(row, 0)->checkState() == Qt::Checked;
    QString name = _table->item(row, 1)->text();
    QVariant var = _params[name];
    BoolEdit * be = 0;
    IntEdit * ie = 0;
    DoubleEdit * de = 0;
    StringEdit * se = 0;
    ListEdit * le = 0;
    switch(var.type()) {
      case QVariant::Bool:
        be = new BoolEdit(this);
        be->_name->setText(name);
        be->_active->setChecked(active);
        be->setValue(var.toBool());
        if(be->exec() == QDialog::Accepted) {
        var = QVariant((bool)be->value());
        active = be->_active->isChecked();
        do_update = TRUE;
        }
        delete be;
        be = 0;
        break;
      case QVariant::Int:
        ie = new IntEdit(this);
        ie->_name->setText(name);
        ie->_active->setChecked(active);
        ie->_value->setText(QString::number(var.toInt()));
        if(ie->exec() == QDialog::Accepted) {
        var = QVariant(ie->_value->text().toInt());
        active = ie->_active->isChecked();
        do_update = TRUE;
        }
        delete ie;
        ie = 0;
        break;
      case QVariant::Double:
        de = new DoubleEdit(this);
        de->_name->setText(name);
        de->_active->setChecked(active);
        de->_value->setText(QString::number(var.toDouble()));
        if(de->exec() == QDialog::Accepted) {
        var = QVariant(de->_value->text().toDouble());
        active = de->_active->isChecked();
        do_update = TRUE;
        }
        delete de;
        de = 0;
        break;
      case QVariant::String:
        se = new StringEdit(this);
        se->_name->setText(name);
        se->_active->setChecked(active);
        se->_value->setText(var.toString());
        if(se->exec() == QDialog::Accepted) {
        var = QVariant(se->_value->text());
        active = se->_active->isChecked();
        do_update = TRUE;
        }
        delete se;
        se = 0;
        break;
      case QVariant::List:
        le = new ListEdit(this);
        le->_name->setText(name);
        le->_active->setChecked(active);
        le->setList(var.toList());
        if(le->exec() == QDialog::Accepted) {
        var = QVariant(le->list());
        active = le->_active->isChecked();
        do_update = TRUE;
        }
        delete le;
        le = 0;
        break;
      default:
        QMessageBox::warning(this, tr("Warning"), QString(tr("I do not know how to edit QVariant type %1.")).arg(var.typeName()));
    };
        
    if(do_update) {
        _params[name] = var;
        _table->item(row, 0)->setCheckState((active ? Qt::Checked : Qt::Unchecked));
        _table->item(row, 1)->setText(name);
        _table->item(row, 2)->setText(var.typeName());
        _table->item(row, 3)->setText(var.toString());
    }
}

void ListEdit::editItem()
{
    Q3ListBoxItem * item = _list->selectedItem();
    if(item) {
	if(item->rtti() == QListBoxVariant::RTTI) {
	    QListBoxVariant * lbvar = (QListBoxVariant*)item;
	    QVariant var = lbvar->variant();
	    BoolEdit * be = 0;
	    IntEdit * ie = 0;
	    DoubleEdit * de = 0;
	    StringEdit * se = 0;
	    ListEdit * le = 0;
	    switch(var.type()) {
	    case QVariant::Bool:
		be = new BoolEdit(this);
		be->_lblName->hide();
		be->_name->hide();
		be->_active->hide();
		be->setValue(var.toBool());
		if(be->exec() == QDialog::Accepted) {
		    lbvar->setVariant(QVariant(be->value(), 0));
		}
		delete be;
		be = 0;
		break;
	    case QVariant::Int:
		ie = new IntEdit(this);
		ie->_lblName->hide();
		ie->_name->hide();
		ie->_active->hide();
		ie->_value->setText(QString::number(var.toInt()));
		if(ie->exec() == QDialog::Accepted) {
		    lbvar->setVariant(QVariant(ie->_value->text().toInt()));
		}
		delete ie;
		ie = 0;
		break;
	    case QVariant::Double:
		de = new DoubleEdit(this);
		de->_lblName->hide();
		de->_name->hide();
		de->_active->hide();
		de->_value->setText(QString::number(var.toDouble()));
		if(de->exec() == QDialog::Accepted) {
		    lbvar->setVariant(QVariant(de->_value->text().toDouble()));
		}
		delete de;
		de = 0;
		break;
	    case QVariant::String:
		se = new StringEdit(this);
		se->_lblName->hide();
		se->_name->hide();
		se->_active->hide();
		se->_value->setText(var.toString());
		if(se->exec() == QDialog::Accepted) {
		    lbvar->setVariant(QVariant(se->_value->text()));
		}
		delete se;
		se = 0;
		break;
	    case QVariant::List:
		le = new ListEdit(this);
		le->_lblName->hide();
		le->_name->hide();
		le->_active->hide();
		le->setList(var.toList());
		if(le->exec() == QDialog::Accepted) {
		    lbvar->setVariant(QVariant(le->list()));
		}
		delete le;
		le = 0;
		break;
	    default:
		QMessageBox::warning(this, tr("Warning"), QString(tr("I do not know how to edit QVariant type %1.")).arg(var.typeName()));
	    };
	} else {
	    QMessageBox::warning(this, tr("Warning"), tr("The item you selected is not a QListBoxVariant item. I do not know what to do."));
	}   
    }
}

void ParameterEdit::newItem()
{
    NewVariant newVar(this);
    if(newVar.exec() == QDialog::Accepted) {
	QString varType = newVar._type->currentText();
	QString name = newVar._name->text();
	bool active = false;
	if(_params.contains(name)) {
	    QMessageBox::warning(this, tr("Name already exists"), tr("The name for the parameter you specified already exists in the list."));
	}
	BoolEdit * be = 0;
	IntEdit * ie = 0;
	DoubleEdit * de = 0;
	StringEdit * se = 0;
	ListEdit * le = 0;
	if(varType == tr("String")) {
	    se = new StringEdit(this);
	    se->_name->setText(name);
	    if(se->exec() == QDialog::Accepted) {
		_params[name] = QVariant(se->_value->text());
		active = se->_active->isChecked();
	    }
	    delete se;
	    se = 0;
	} else if(varType == tr("Int")) {
	    ie = new IntEdit(this);
	    ie->_name->setText(name);
	    if(ie->exec() == QDialog::Accepted) {
		_params[name] = QVariant(ie->_value->text().toInt());
		active = ie->_active->isChecked();
	    }
	    delete ie;
	    ie = 0;
	} else if(varType == tr("Double")) {
	    de = new DoubleEdit(this);
	    de->_name->setText(name);
	    if(de->exec() == QDialog::Accepted) {
		_params[name] = QVariant(de->_value->text().toDouble());
		active = de->_active->isChecked();
	    }
	    delete de;
	    de = 0;
	} else if(varType == tr("Bool")) {
	    be = new BoolEdit(this);
	    be->_name->setText(name);
	    if(be->exec() == QDialog::Accepted) {
		_params[name] = QVariant((bool)be->value());
		active = be->_active->isChecked();
	    }
	    delete be;
	    be = 0;
	} else if(varType == tr("List")) {
	    le = new ListEdit(this);
	    le->_name->setText(name);
	    if(le->exec() == QDialog::Accepted) {
		_params[name] = QVariant(le->list());
		active = le->_active->isChecked();
	    }
	    delete le;
	    le = 0;
	} else {
	    QMessageBox::warning(this, tr("Unknown Type"), QString(tr("I do not understand the type %1.")).arg(varType));
	    return;
	}
	int r = _table->rowCount();
	_table->setRowCount(r+1);
        QTableWidgetItem * ctItem = 0;
        ctItem = new QTableWidgetItem();
        ctItem->setFlags(Qt::ItemIsUserCheckable);
        ctItem->setCheckState((active ? Qt::Checked : Qt::Unchecked));
        _table->setItem(r, 0, ctItem);
        _table->setItem(r, 1, new QTableWidgetItem(name));
        QVariant var = _params[name];
        _table->setItem(r, 2, new QTableWidgetItem(var.typeName()));
        _table->setItem(r, 3, new QTableWidgetItem(var.toString()));
    }
}

bool LispPlugin::isa(QVariant ltok, const char* typeName) {
    return QString::compare(typeName, ltok.typeName());
}

//.........这里部分代码省略.........
		{
			e.setTagName("font");
			QFont f(v.value<QFont>());
			e.setAttribute("family", f.family());
			e.setAttribute("pointsize", f.pointSize());
			e.setAttribute("bold", boolString(f.bold()));
			e.setAttribute("italic", boolString(f.italic()));
			e.setAttribute("underline", boolString(f.underline()));
			e.setAttribute("strikeout", boolString(f.strikeOut()));
		}
			break;
		case QVariant::SizePolicy:
		{
			e.setTagName("sizepolicy");
			QSizePolicy sp(v.value<QSizePolicy>());
			e.setAttribute("hsizetype", sp.horData());
			e.setAttribute("vsizetype", sp.verData());
			e.setAttribute("horstretch", sp.horStretch());
			e.setAttribute("verstretch", sp.verStretch());
		}
			break;
		case QVariant::Cursor:
			e.setTagName("cursor");
			e.setAttribute("shape", v.value<QCursor>().shape());
			break;

		case QVariant::StringList:
		{
			e.setTagName("stringlist");
			int32_t j;

			QDomNode n;
			QDomNodeList stringNodeList = e.elementsByTagName("string");
			QDomElement stringElem;
			QStringList stringList = v.toStringList();
			QStringList::Iterator it = stringList.begin();

			for (j = 0;
				 ((j < (int32_t)stringNodeList.length()) && (it != stringList.end()));
				 j++)
			{
				// get the current string element
				stringElem = stringNodeList.item(j).toElement();

				// set it to the current string
				variantToElement(QVariant(*it), stringElem);

				// iterate to the next string
				++it;
			}

			// more nodes in previous stringlist then current, remove excess nodes
			if (stringNodeList.count() > stringList.count())
			{
				while (j < (int32_t)stringNodeList.count())
					e.removeChild(stringNodeList.item(j).toElement());
			}
			else if (j < (int32_t)stringList.count())
			{
				while (it != stringList.end())
				{
					// create a new element
					stringElem = m_doc.createElement("string");

					// set it to the currentstring
					variantToElement(QVariant(*it), stringElem);

					// append it to the current element
					e.appendChild(stringElem);

					// iterate to the next string
					++it;
				}
			}
		}
			break;

		case QVariant::KeySequence:
			e.setTagName("key");
			e.setAttribute("sequence", (QString)v.value<QKeySequence>().toString());
			break;

		case QVariant::ByteArray: // this is only for [u]int64_t
		{
			e.setTagName("data");

			// set the value
			e.setAttribute("value", getStringFromByteArray(v.toByteArray()));
		}
			break;

		default:
			qWarning("Don't know how to persist variant of type: %s (%d)!",
					 v.typeName(), v.type());
			ok = false;
			break;
	}

	return ok;
}

//.........这里部分代码省略.........
    QDBusError object, this function will instead set an error code
    indicating a type mismatch.
*/

/*!
    \fn bool QDBusReply::isValid() const

    Returns true if no error occurred; otherwise, returns false.

    \sa error()
*/

/*!
    \fn QDBusReply::error()

    Returns the error code that was returned from the remote function call. If the remote call did
    not return an error (i.e., if it succeeded), then the QDBusError object that is returned will
    not be a valid error code (QDBusError::isValid() will return false).

    \sa isValid()
*/

/*!
    \fn QDBusReply::value() const
    Returns the remote function's calls return value. If the remote call returned with an error,
    the return value of this function is undefined and may be undistinguishable from a valid return
    value.

    This function is not available if the remote call returns \c void.
*/

/*!
    \fn QDBusReply::operator Type() const
    Returns the same as value().

    This function is not available if the remote call returns \c void.
*/

/*!
    \internal
    Fills in the QDBusReply data \a error and \a data from the reply message \a reply.
*/
void qDBusReplyFill(const QDBusMessage &reply, QDBusError &error, QVariant &data)
{
    error = reply;

    if (error.isValid()) {
        data = QVariant();      // clear it
        return;
    }

    if (reply.arguments().count() >= 1 && reply.arguments().at(0).userType() == data.userType()) {
        data = reply.arguments().at(0);
        return;
    }

    const char *expectedSignature = QDBusMetaType::typeToSignature(data.userType());
    const char *receivedType = 0;
    QByteArray receivedSignature;

    if (reply.arguments().count() >= 1) {
        if (reply.arguments().at(0).userType() == QDBusMetaTypeId::argument) {
            // compare signatures instead
            QDBusArgument arg = qvariant_cast<QDBusArgument>(reply.arguments().at(0));
            receivedSignature = arg.currentSignature().toLatin1();
            if (receivedSignature == expectedSignature) {
                // matched. Demarshall it
                QDBusMetaType::demarshall(arg, data.userType(), data.data());
                return;
            }
        } else {
            // not an argument and doesn't match?
            int type = reply.arguments().at(0).userType();
            receivedType = QVariant::typeToName(QVariant::Type(type));
            receivedSignature = QDBusMetaType::typeToSignature(type);
        }
    }

    // error
    if (receivedSignature.isEmpty())
        receivedSignature = "no signature";
    QString errorMsg;
    if (receivedType) {
        errorMsg = QString::fromLatin1("Unexpected reply signature: got \"%1\" (%4), "
                                         "expected \"%2\" (%3)")
                   .arg(QLatin1String(receivedSignature),
                        QLatin1String(expectedSignature),
                        QLatin1String(data.typeName()),
                        QLatin1String(receivedType));
    } else {
        errorMsg = QString::fromLatin1("Unexpected reply signature: got \"%1\", "
                                         "expected \"%2\" (%3)")
                   .arg(QLatin1String(receivedSignature),
                        QLatin1String(expectedSignature),
                        QLatin1String(data.typeName()));
    }

    error = QDBusError(QDBusError::InvalidSignature, errorMsg);
    data = QVariant();      // clear it
}