96 lines
2.3 KiB
C++
96 lines
2.3 KiB
C++
/*
|
|
* _DTE.H
|
|
*
|
|
* Purpose:
|
|
* Interface declaration for IDataTransferEngine
|
|
* there is typically one data transfer engine per
|
|
* CTxtEdit instance
|
|
*
|
|
* Author:
|
|
* alexgo 3/25/95
|
|
*
|
|
* NB! THIS FILE IS NOW OBSOLETE
|
|
*/
|
|
|
|
#ifndef __DTE_H__
|
|
#define __DTE_H__
|
|
|
|
#include "_m_undo.h"
|
|
|
|
class CTxtRange;
|
|
class CTxtEdit;
|
|
|
|
/*
|
|
* DataObjectInfo
|
|
*
|
|
* Purpose:
|
|
* enumeration of bit flags used to indicate what operations
|
|
* are possible from a given data object.
|
|
*/
|
|
|
|
typedef enum tagDataObjectInfo
|
|
{
|
|
DOI_NONE = 0,
|
|
DOI_CANUSETOM = 1, // TOM<-->TOM optimized data transfers
|
|
DOI_CANPASTEPLAIN = 2, // plain text pasting available
|
|
DOI_CANPASTERICH = 4, // rich text pasting available
|
|
DOI_CANPASTEOLE = 8, // object may be pasted as an OLE embedding
|
|
// (note that this flag may be combined with
|
|
// others).
|
|
} DataObjectInfo;
|
|
|
|
/*
|
|
* IDataTransferEngine
|
|
*
|
|
* Purpose:
|
|
* provides clipboard, drag drop, and data object data transfer
|
|
* capabilities. Each implementation will provide a different
|
|
* level of functionality (e.g. OLE vs no-OLE)
|
|
*/
|
|
class IDataTransferEngine
|
|
{
|
|
public:
|
|
// memory mgmt
|
|
|
|
virtual void Destroy() = 0;
|
|
|
|
// clipboard operations
|
|
|
|
virtual HRESULT CopyRangeToClipboard( CTxtRange *prg ) = 0;
|
|
virtual HRESULT CutRangeToClipboard( CTxtRange *prg,
|
|
IUndoBuilder *publdr ) = 0;
|
|
virtual HRESULT PasteClipboardToRange( CTxtRange *prg,
|
|
IUndoBuilder *publdr ) = 0;
|
|
virtual BOOL CanPaste( CTxtRange *prg, CLIPFORMAT cf) = 0;
|
|
|
|
// data object operations
|
|
|
|
virtual HRESULT RangeToDataObject( CTxtRange *prg, LONG lStreamFormat,
|
|
IDataObject **ppdo) = 0;
|
|
virtual HRESULT PasteDataObjectToRange( IDataObject *pdo,
|
|
CTxtRange *prg, IUndoBuilder *publdr) = 0;
|
|
|
|
virtual HRESULT GetDataObjectInfo( IDataObject *pdo, DWORD *pDOIFlags ) = 0;
|
|
|
|
// drag drop operations
|
|
|
|
virtual HRESULT GetDropTarget( IDropTarget **ppDropTarget ) = 0;
|
|
virtual HRESULT StartDrag( CTxtRange *prg, IUndoBuilder *publdr) = 0;
|
|
|
|
// file i/o
|
|
|
|
virtual LONG LoadFromEs( CTxtRange *prg, LONG lStreamFormat,
|
|
EDITSTREAM *pes, IUndoBuilder *publdr) = 0;
|
|
virtual LONG SaveToEs( CTxtRange *prg, LONG lStreamFormat,
|
|
EDITSTREAM *pes ) = 0;
|
|
|
|
// converstion routines
|
|
|
|
virtual HGLOBAL AnsiPlainTextFromRange( CTxtRange *prg ) = 0;
|
|
virtual HGLOBAL UnicodePlainTextFromRange( CTxtRange *prg ) = 0;
|
|
|
|
};
|
|
|
|
#endif // !__DTE_H__
|
|
|