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Commit	Line	Data
	1	///////////////////////////////////////////////////////////////////////////////
	2	// Name: wx/gtk/dnd.h
	3	// Purpose: declaration of the wxDropTarget class
	4	// Author: Robert Roebling
	5	// Copyright: (c) 1998 Vadim Zeitlin, Robert Roebling
	6	// Licence: wxWindows licence
	7	///////////////////////////////////////////////////////////////////////////////
	8
	9	#ifndef _WX_GTK_DND_H_
	10	#define _WX_GTK_DND_H_
	11
	12	#include "wx/icon.h"
	13
	14	// ----------------------------------------------------------------------------
	15	// macros
	16	// ----------------------------------------------------------------------------
	17
	18	// this macro may be used instead for wxDropSource ctor arguments: it will use
	19	// the icon 'name' from an XPM file under GTK, but will expand to something
	20	// else under MSW. If you don't use it, you will have to use #ifdef in the
	21	// application code.
	22	#define wxDROP_ICON(name) wxICON(name)
	23
	24	//-------------------------------------------------------------------------
	25	// wxDropTarget
	26	//-------------------------------------------------------------------------
	27
	28	class WXDLLIMPEXP_CORE wxDropTarget: public wxDropTargetBase
	29	{
	30	public:
	31	wxDropTarget(wxDataObject *dataObject = NULL );
	32
	33	virtual wxDragResult OnDragOver(wxCoord x, wxCoord y, wxDragResult def);
	34	virtual bool OnDrop(wxCoord x, wxCoord y);
	35	virtual wxDragResult OnData(wxCoord x, wxCoord y, wxDragResult def);
	36	virtual bool GetData();
	37
	38	// Can only be called during OnXXX methods.
	39	wxDataFormat GetMatchingPair();
	40
	41	// implementation
	42
	43	GdkAtom GTKGetMatchingPair(bool quiet = false);
	44	wxDragResult GTKFigureOutSuggestedAction();
	45
	46	void GtkRegisterWidget( GtkWidget *widget );
	47	void GtkUnregisterWidget( GtkWidget *widget );
	48
	49	GdkDragContext *m_dragContext;
	50	GtkWidget *m_dragWidget;
	51	GtkSelectionData *m_dragData;
	52	unsigned m_dragTime;
	53	bool m_firstMotion; // gdk has no "gdk_drag_enter" event
	54
	55	void GTKSetDragContext( GdkDragContext *dc ) { m_dragContext = dc; }
	56	void GTKSetDragWidget( GtkWidget *w ) { m_dragWidget = w; }
	57	void GTKSetDragData( GtkSelectionData *sd ) { m_dragData = sd; }
	58	void GTKSetDragTime(unsigned time) { m_dragTime = time; }
	59	};
	60
	61	//-------------------------------------------------------------------------
	62	// wxDropSource
	63	//-------------------------------------------------------------------------
	64
	65	class WXDLLIMPEXP_CORE wxDropSource: public wxDropSourceBase
	66	{
	67	public:
	68	// constructor. set data later with SetData()
	69	wxDropSource( wxWindow *win = NULL,
	70	const wxIcon &copy = wxNullIcon,
	71	const wxIcon &move = wxNullIcon,
	72	const wxIcon &none = wxNullIcon);
	73
	74	// constructor for setting one data object
	75	wxDropSource( wxDataObject& data,
	76	wxWindow *win,
	77	const wxIcon &copy = wxNullIcon,
	78	const wxIcon &move = wxNullIcon,
	79	const wxIcon &none = wxNullIcon);
	80
	81	virtual ~wxDropSource();
	82
	83	// set the icon corresponding to given drag result
	84	void SetIcon(wxDragResult res, const wxIcon& icon)
	85	{
	86	if ( res == wxDragCopy )
	87	m_iconCopy = icon;
	88	else if ( res == wxDragMove )
	89	m_iconMove = icon;
	90	else
	91	m_iconNone = icon;
	92	}
	93
	94	// start drag action
	95	virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
	96
	97	void PrepareIcon( int action, GdkDragContext *context );
	98
	99	GtkWidget *m_widget;
	100	GtkWidget *m_iconWindow;
	101	GdkDragContext *m_dragContext;
	102	wxWindow *m_window;
	103
	104	wxDragResult m_retValue;
	105	wxIcon m_iconCopy,
	106	m_iconMove,
	107	m_iconNone;
	108
	109	bool m_waiting;
	110
	111	private:
	112	// common part of both ctors
	113	void SetIcons(const wxIcon& copy,
	114	const wxIcon& move,
	115	const wxIcon& none);
	116
	117	// GTK implementation
	118	void GTKConnectDragSignals();
	119	void GTKDisconnectDragSignals();
	120
	121	};
	122
	123	#endif // _WX_GTK_DND_H_
	124