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/*
* @doc TOM * * @module _tomdoc.H -- CTxtDoc Class | * * This class implements the TOM ITextDocument interface * * @devnote * This class depends on the internal RichEdit CTxtStory class, but is * separate, that is, a CTxtDoc has a ptr to the internal CTxtStory, * rather than CTxtDoc deriving from ITextDocument. This choice * was made so that edit control instances that don't use the * ITextDocument interface don't have to have the extra vtable ptr. * * When this class is destroyed, it doesn't destroy the internal * CTxtStory object (CTxtEdit::_pdoc). However the TOM client's * perception is that the document is no longer in memory, so the internal * document should be cleared. It's the client's responsibility to save * the document, if desired, before releasing it. * * @future * Generalize so that CTxtDoc can handle multiple CTxtStory's. */
#ifndef _tomdoc_H
#define _tomdoc_H
#include "_range.h"
class CTxtDoc : public ITextDocument{//@access Public methods
public: CTxtDoc(CTxtEdit *ped);
// IUnknown methods
STDMETHODIMP QueryInterface(REFIID riid, LPVOID * ppvObj); STDMETHOD_(ULONG, AddRef)(); STDMETHOD_(ULONG, Release)();
// IDispatch methods
STDMETHODIMP GetTypeInfoCount(UINT * pctinfo); STDMETHODIMP GetTypeInfo(UINT itinfo, LCID lcid, ITypeInfo ** pptinfo); STDMETHODIMP GetIDsOfNames(REFIID riid, OLECHAR ** rgszNames, UINT cNames, LCID lcid, DISPID * rgdispid) ; STDMETHODIMP Invoke(DISPID dispidMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS * pdispparams, VARIANT * pvarResult, EXCEPINFO * pexcepinfo, UINT * puArgErr) ;
// ITextDocument methods
STDMETHODIMP GetName (BSTR * pName); //@cmember Get document filename
STDMETHODIMP GetCount (long *pCount); //@cmember Get count of stories in document
STDMETHODIMP _NewEnum(IEnumRange **ppenum); //@cmember Get stories enumerator
STDMETHODIMP Item (long Index, ITextRange **pprange);//@cmember Get <p Index>th story
STDMETHODIMP Save (VARIANT * pVar); //@cmember Save this document
STDMETHODIMP BeginEditCollection (); //@cmember Turn on undo grouping
STDMETHODIMP EndEditCollection (); //@cmember Turn off undo grouping
//@access Private data
private: CTxtEdit * _ped; //@cmember CTxtEdit this belongs to
TCHAR * _pName; //@cmember Filename of document
LONG _cRefs; //@cmember Reference count
};
#endif
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