XmlStackedHandler.h

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#ifndef XmlStackedHandler_H
#define XmlStackedHandler_H
 
/* SPDX-License-Identifier: CC0-1.0 */
 
#include <QXmlSimpleReader>
 
template <typename T> class QStack;
 
class QXmlParseException;
namespace Isis {
  class XmlStackedHandlerReader;
 
  class XmlStackedHandler : public QXmlDefaultHandler {
    public:
      XmlStackedHandler();
      ~XmlStackedHandler();
 
      virtual void setReader(XmlStackedHandlerReader *);
      void switchToNewHandler(XmlStackedHandler *nextHandler);
 
      virtual bool startElement(const QString &namespaceURI, const QString &localName,
                                const QString &qName, const QXmlAttributes &atts);
 
      virtual bool endElement(const QString &namespaceURI, const QString &localName,
                              const QString &qName);
 
    protected:
      XmlStackedHandlerReader *reader();
      const XmlStackedHandlerReader *reader() const;
      bool fatalError(const QXmlParseException &exception);
 
    private:
      Q_DISABLE_COPY(XmlStackedHandler);
 
      XmlStackedHandlerReader *m_reader;
      int m_depth;
 
      QString m_lastStartNamespaceURI;
      QString m_lastStartLocalName;
      QString m_lastStartQName;
      QXmlAttributes m_lastStartAtts;
  };
}
 
#endif