mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
191 lines
5.6 KiB
191 lines
5.6 KiB
/*
|
|
* _DXFROBJ.H
|
|
*
|
|
* Purpose:
|
|
* Class declaration for an OLE data transfer object (for use in
|
|
* drag drop and clipboard operations)
|
|
*
|
|
* Author:
|
|
* alexgo (4/25/95)
|
|
*
|
|
* Copyright (c) 1995-1998, Microsoft Corporation. All rights reserved.
|
|
*/
|
|
|
|
#ifndef __DXFEROBJ_H__
|
|
#define __DXFEROBJ_H__
|
|
|
|
class CTxtRange;
|
|
|
|
EXTERN_C const IID IID_IRichEditDO;
|
|
|
|
/*
|
|
* CDataTransferObj
|
|
*
|
|
* Purpose:
|
|
* holds a "snapshot" of some rich-text data that can be used
|
|
* for drag drop or clipboard operations
|
|
*
|
|
* Notes:
|
|
* FUTURE (alexgo): add in support for TOM<-->TOM optimized data
|
|
* transfers
|
|
*/
|
|
|
|
class CDataTransferObj : public IDataObject, public ITxNotify
|
|
{
|
|
public:
|
|
|
|
// IUnknown methods
|
|
STDMETHOD(QueryInterface)(REFIID riid, void ** ppvObj);
|
|
STDMETHOD_(ULONG, AddRef)();
|
|
STDMETHOD_(ULONG, Release)();
|
|
|
|
// IDataObject methods
|
|
STDMETHOD(DAdvise)( FORMATETC * pFormatetc, DWORD advf,
|
|
IAdviseSink *pAdvSink, DWORD *pdwConnection);
|
|
STDMETHOD(DUnadvise)( DWORD dwConnection);
|
|
STDMETHOD(EnumDAdvise)( IEnumSTATDATA ** ppenumAdvise);
|
|
STDMETHOD(EnumFormatEtc)( DWORD dwDirection,
|
|
IEnumFORMATETC **ppenumFormatEtc);
|
|
STDMETHOD(GetCanonicalFormatEtc)( FORMATETC *pformatetc,
|
|
FORMATETC *pformatetcOut);
|
|
STDMETHOD(GetData)( FORMATETC *pformatetcIn, STGMEDIUM *pmedium );
|
|
STDMETHOD(GetDataHere)( FORMATETC *pformatetc, STGMEDIUM *pmedium);
|
|
STDMETHOD(QueryGetData)( FORMATETC *pformatetc );
|
|
STDMETHOD(SetData)( FORMATETC *pformatetc, STGMEDIUM *pmedium,
|
|
BOOL fRelease);
|
|
|
|
// ITxNotify methods
|
|
virtual void OnPreReplaceRange( LONG cp, LONG cchDel, LONG cchNew,
|
|
LONG cpFormatMin, LONG cpFormatMax);
|
|
virtual void OnPostReplaceRange( LONG cp, LONG cchDel, LONG cchNew,
|
|
LONG cpFormatMin, LONG cpFormatMax);
|
|
virtual void Zombie();
|
|
|
|
static CDataTransferObj * Create(CTxtEdit *ped, CTxtRange *prg, LONG lStreamFormat);
|
|
|
|
private:
|
|
// NOTE: private cons/destructor, may not be allocated on the stack as
|
|
// this would break OLE's current object liveness rules
|
|
CDataTransferObj(CTxtEdit *ped);
|
|
~CDataTransferObj();
|
|
|
|
BOOL IsZombie() {return !_ped;}
|
|
|
|
ULONG _crefs;
|
|
ULONG _cTotal; // total number of formats supported
|
|
FORMATETC * _prgFormats; // the array of supported formats
|
|
LONG _lStreamFormat; // Stream format to use in Rtf conversion
|
|
|
|
// for 1.0 compatability
|
|
DWORD _dwFlags;
|
|
DWORD _dwUser;
|
|
DWORD _dvaspect;
|
|
|
|
enum TEXTKIND
|
|
{
|
|
tPlain,
|
|
tRtf,
|
|
tRtfUtf8,
|
|
tRtfNCRforNonASCII
|
|
};
|
|
|
|
HGLOBAL TextToHglobal( HGLOBAL &hText, TEXTKIND tKind );
|
|
LPSTORAGE GetDataForEmbeddedObject( LPOLEOBJECT pOleObj, LPSTORAGE lpstgdest );
|
|
HGLOBAL GetDataForObjectDescriptor( LPOLEOBJECT pOleObj, DWORD dwAspect, SIZEL* psizel );
|
|
|
|
public:
|
|
CTxtEdit * _ped;
|
|
HGLOBAL _hPlainText; // handle to the plain UNICODE text
|
|
HGLOBAL _hRtfText; // handle to the RTF UNICODE text
|
|
HGLOBAL _hRtfUtf8; // Handle to UTF8 encoding of RTF
|
|
HGLOBAL _hRtfNCRforNonASCII; // Handle to NCRforNonASCII encoding of RTF
|
|
IOleObject * _pOleObj; // Embedded Object
|
|
LPSTORAGE _pObjStg; // Embedded object data
|
|
HGLOBAL _hObjDesc; // Embedded object descriptor
|
|
HMETAFILE _hMFPict; // Embedded object metafile
|
|
LONG _cch; // number of "characters" in the this
|
|
// dxfer object
|
|
LONG _cpMin; // Starting cp for this dxfer object
|
|
LONG _cObjs; // number of objects in this dxfer object.
|
|
};
|
|
|
|
/*
|
|
* class CEnumFormatEtc
|
|
*
|
|
* Purpose:
|
|
* implements a generic format enumerator for IDataObject
|
|
*/
|
|
|
|
class CEnumFormatEtc : public IEnumFORMATETC
|
|
{
|
|
public:
|
|
STDMETHOD(QueryInterface)(REFIID riid, void **ppvObj);
|
|
STDMETHOD_(ULONG,AddRef)(void);
|
|
STDMETHOD_(ULONG,Release)(void);
|
|
|
|
STDMETHOD(Next) (ULONG celt, FORMATETC *rgelt,
|
|
ULONG *pceltFetched);
|
|
STDMETHOD(Skip) (ULONG celt);
|
|
STDMETHOD(Reset) (void);
|
|
STDMETHOD(Clone) (IEnumFORMATETC **ppenum);
|
|
|
|
static HRESULT Create(FORMATETC *prgFormats, DWORD cFormats,
|
|
IEnumFORMATETC **ppenum);
|
|
|
|
private:
|
|
|
|
CEnumFormatEtc();
|
|
~CEnumFormatEtc();
|
|
|
|
ULONG _crefs;
|
|
ULONG _iCurrent; // current clipboard format
|
|
ULONG _cTotal; // total number of formats
|
|
FORMATETC * _prgFormats; // array of available formats
|
|
};
|
|
|
|
|
|
//
|
|
// Some globally useful FORMATETCs
|
|
|
|
extern FORMATETC g_rgFETC[];
|
|
extern const DWORD g_rgDOI[];
|
|
#define CFETC 17 // Dimension of g_rgFETC[]
|
|
|
|
enum FETCINDEX // Keep in sync with g_rgFETC[]
|
|
{
|
|
iRtfUtf8, // RTF in UTF8 encoding
|
|
iRtfFETC, // RTF
|
|
iRtfNCRforNonASCII, // RTF with NCR for nonASCII
|
|
iEmbObj, // Embedded Object
|
|
iEmbSrc, // Embed Source
|
|
iObtDesc, // Object Descriptor
|
|
iLnkSrc, // Link Source
|
|
iMfPict, // Metafile
|
|
iDIB, // DIB
|
|
iBitmap, // Bitmap
|
|
iRtfNoObjs, // RTF with no objects
|
|
iUnicodeFETC, // Unicode plain text
|
|
iAnsiFETC, // ANSI plain text
|
|
iFilename, // Filename
|
|
iRtfAsTextFETC, // Pastes RTF as text
|
|
iTxtObj, // Richedit Text
|
|
iRichEdit // RichEdit Text w/formatting
|
|
};
|
|
|
|
#define cf_RICHEDIT g_rgFETC[iRichEdit].cfFormat
|
|
#define cf_EMBEDDEDOBJECT g_rgFETC[iEmbObj].cfFormat
|
|
#define cf_EMBEDSOURCE g_rgFETC[iEmbSrc].cfFormat
|
|
#define cf_OBJECTDESCRIPTOR g_rgFETC[iObtDesc].cfFormat
|
|
#define cf_LINKSOURCE g_rgFETC[iLnkSrc].cfFormat
|
|
#define cf_RTF g_rgFETC[iRtfFETC].cfFormat
|
|
#define cf_RTFUTF8 g_rgFETC[iRtfUtf8].cfFormat
|
|
#define cf_RTFNCRFORNONASCII g_rgFETC[iRtfNCRforNonASCII].cfFormat
|
|
#define cf_RTFNOOBJS g_rgFETC[iRtfNoObjs].cfFormat
|
|
#define cf_TEXTOBJECT g_rgFETC[iTxtObj].cfFormat
|
|
#define cf_RTFASTEXT g_rgFETC[iRtfAsTextFETC].cfFormat
|
|
#define cf_FILENAME g_rgFETC[iFilename].cfFormat
|
|
|
|
#endif // !__DXFROBJ_H__
|
|
|
|
|
|
|