#ifndef JEZUK_DOM_CHARACTERDATA_H
#define JEZUK_DOM_CHARACTERDATA_H

////////////////////////////
// C++ DOM definition
//
// $Id$
////////////////////////////

#include <DOM/Node.hpp>

namespace Arabica
{
namespace DOM
{
template<class stringT, class string_adaptorT> class CharacterData_impl;

template<class stringT, class string_adaptorT = Arabica::default_string_adaptor<stringT> >
class CharacterData : public Node<stringT, string_adaptorT>
{
    typedef CharacterData_impl<stringT, string_adaptorT> CharacterData_implT;
  public:
    typedef Node<stringT, string_adaptorT> NodeT;

    CharacterData() : NodeT() { }
    explicit CharacterData(CharacterData_implT* impl) : NodeT(impl) { }
    CharacterData(const CharacterData& rhs) : NodeT(rhs) { }
    explicit CharacterData(const NodeT& rhs) : NodeT(rhs)  
    {
	  if(NodeT::impl_ == 0) // null nodes can always be cast
		return;
      typename NodeT::Type type = rhs.getNodeType();
      if((type != NodeT::TEXT_NODE) && (type != NodeT::CDATA_SECTION_NODE))
        throw DOMBadCast("CharacterData");
    } // CharacterData

  protected:
    CharacterData(const NodeT& rhs, int /*dummy*/) : NodeT(rhs) { }

  public:
    const stringT& getData() const { return cdImpl()->getData(); }
    void setData(const stringT& data) 
    { 
      cdImpl()->setData(data); 
    } // setData

    int getLength() const { return cdImpl()->getLength(); }

    stringT substringData(int offset, int count) const { return cdImpl()->substringData(offset, count); }

    void appendData(const stringT& arg) 
    {
      cdImpl()->appendData(arg); 
    } // appendData
    void insertData(int offset, const stringT& arg) 
    { 
      cdImpl()->insertData(offset, arg); 
    } // insertData
    void deleteData(int offset, int count) 
    { 
      cdImpl()->deleteData(offset, count); 
    } // deleteData
    void replaceData(int offset, int count, const stringT& arg) 
    { 
      cdImpl()->replaceData(offset, count, arg); 
    } // replaceData

  private:
    CharacterData_implT* cdImpl() { return dynamic_cast<CharacterData_implT*>(*NodeT::impl_); }
    const CharacterData_implT* cdImpl() const { return dynamic_cast<const CharacterData_implT*>(*NodeT::impl_); }
}; // class CharacterData

////////////////////////////////////////////////////////////////////
template<class stringT, class string_adaptorT>
class CharacterData_impl : virtual public Node_impl<stringT, string_adaptorT>
{
  public:
    virtual ~CharacterData_impl () { }

    //////////////////////////////////////////////////////////////////
    // DOM::CharacterData methods
    virtual const stringT& getData() const = 0;
    virtual void setData(const stringT& data) = 0;

    virtual int getLength() const = 0;

    virtual stringT substringData(int offset, int count) const = 0;

    virtual void appendData(const stringT& arg) = 0;
    virtual void insertData(int offset, const stringT& arg) = 0;
    virtual void deleteData(int offset, int count) = 0;
    virtual void replaceData(int offset, int count, const stringT& arg) = 0;
}; // CharacterData_impl

} // namespace DOM
} // namespace Arabica

#endif