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