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Commit	Line	Data
	1	///////////////////////////////////////////////////////////////////////////////
	2	// Name: dnd.h
	3	// Purpose: declaration of the wxDropTarget class
	4	// Author: David Webster
	5	// Modified by:
	6	// Created: 10/21/99
	7	// RCS-ID: $Id$
	8	// Copyright: (c) 1999 David Webster
	9	// Licence: wxWindows license
	10	///////////////////////////////////////////////////////////////////////////////
	11
	12
	13	#ifndef __OS2DNDH__
	14	#define __OS2DNDH__
	15
	16	#if !wxUSE_DRAG_AND_DROP
	17	#error "You should #define wxUSE_DRAG_AND_DROP to 1 to compile this file!"
	18	#endif //WX_DRAG_DROP
	19
	20	#define INCL_WINSTDDRAG
	21	#include <os2.h>
	22	#ifndef __EMX__
	23	#include <pmstddlg.h>
	24	#endif
	25
	26	class CIDropTarget;
	27
	28	//-------------------------------------------------------------------------
	29	// wxDropSource
	30	//-------------------------------------------------------------------------
	31
	32	class WXDLLEXPORT wxDropSource: public wxDropSourceBase
	33	{
	34	public:
	35	/* constructor. set data later with SetData() */
	36	wxDropSource(wxWindow* pWin);
	37
	38	/* constructor for setting one data object */
	39	wxDropSource( wxDataObject& rData,
	40	wxWindow* pWin
	41	);
	42	virtual ~wxDropSource();
	43
	44	/* start drag action */
	45	virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
	46	virtual bool GiveFeedback(wxDragResult eEffect);
	47
	48	protected:
	49	void Init(void);
	50
	51	ULONG m_ulItems;
	52	PDRAGINFO m_pDragInfo;
	53	DRAGIMAGE m_vDragImage;
	54	PDRAGITEM m_pDragItem;
	55	wxWindow* m_pWindow;
	56	}; // end of CLASS wxDropSource
	57
	58	//-------------------------------------------------------------------------
	59	// wxDropTarget
	60	//-------------------------------------------------------------------------
	61
	62	class WXDLLEXPORT wxDropTarget : public wxDropTargetBase
	63	{
	64	public:
	65	wxDropTarget(wxDataObject* pDataObject = (wxDataObject*)NULL);
	66	virtual ~wxDropTarget();
	67
	68	//
	69	// These functions are called when data is moved over position (x, y) and
	70	// may return either wxDragCopy, wxDragMove or wxDragNone depending on
	71	// what would happen if the data were dropped here.
	72	//
	73	// The last parameter is what would happen by default and is determined by
	74	// the platform-specific logic (for example, under Windows it's wxDragCopy
	75	// if Ctrl key is pressed and wxDragMove otherwise) except that it will
	76	// always be wxDragNone if the carried data is in an unsupported format.
	77	//
	78	// OnData must be implemented and other should be overridden by derived classes
	79	//
	80	virtual wxDragResult OnData( wxCoord vX
	81	,wxCoord vY
	82	,wxDragResult eResult
	83	);
	84	virtual bool OnDrop( wxCoord vX
	85	,wxCoord vY
	86	);
	87	bool IsAcceptedData(PDRAGINFO pDataSource) const;
	88
	89	protected:
	90	virtual bool GetData(void);
	91	wxDataFormat GetSupportedFormat(PDRAGINFO pDataSource) const;
	92	void Release(void);
	93
	94	private:
	95	CIDropTarget* m_pDropTarget;
	96	}; // end of CLASS wxDropTarget
	97
	98	#endif //__OS2DNDH__
	99