/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *  Sun Microsystems Inc., October, 2000
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 *  Sun Industry Standards Source License Version 1.1
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 ************************************************************************/
/*************************************************************************
 * @file
 * Base class for the all content object,ie. text,paragraph,picture,and so on.
 ************************************************************************/
#ifndef INCLUDED_LOTUSWORDPRO_INC_XFILTER_XFCONTENT_HXX
#define INCLUDED_LOTUSWORDPRO_INC_XFILTER_XFCONTENT_HXX

#include <sal/config.h>

#include <rtl/ustring.hxx>
#include <salhelper/simplereferenceobject.hxx>
#include <stdexcept>

#include <xfilter/ixfstream.hxx>
#include <xfilter/xfdefs.hxx>

class IXFStream;

/**
 * @descr
 * Base class for all content object.
 * There is only two properties:style name and content type in this class.
 */
class XFContent : public salhelper::SimpleReferenceObject
{
public:
    /**
     * @short:  return the content type.
     */
    virtual enumXFContent GetContentType() { return enumXFContentUnknown; }

    /**
     * @short:  All content except XFTextContent can have a style.
     */
    virtual void SetStyleName(const OUString& style) { m_strStyleName = style; }

    /**
     * @short:  return the style name.
     */
    const OUString& GetStyleName() const { return m_strStyleName; }

    void DoToXml(IXFStream* stream)
    {
        if (m_bDoingToXml)
            throw std::runtime_error("recursion in content");
        m_bDoingToXml = true;
        ToXml(stream);
        m_bDoingToXml = false;
    }

protected:
    XFContent()
        : m_bDoingToXml(false)
    {
    }

    virtual void ToXml(IXFStream* stream) = 0;

    virtual ~XFContent() override {}

    OUString m_strStyleName;

private:
    bool m_bDoingToXml;
};

#endif

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