wxWidgets/include/wx/msw/ole/dropsrc.h
1999-10-24 19:34:11 +00:00

72 lines
2.6 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// Name: ole/dropsrc.h
// Purpose: declaration of the wxDropSource class
// Author: Vadim Zeitlin
// Modified by:
// Created: 06.03.98
// RCS-ID: $Id$
// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_OLEDROPSRC_H
#define _WX_OLEDROPSRC_H
#ifdef __GNUG__
#pragma interface
#endif
#if !wxUSE_DRAG_AND_DROP
#error "You should #define wxUSE_DRAG_AND_DROP to 1 to compile this file!"
#endif //WX_DRAG_DROP
// ----------------------------------------------------------------------------
// forward declarations
// ----------------------------------------------------------------------------
class wxIDropSource;
class WXDLLEXPORT wxDataObject;
class WXDLLEXPORT wxWindow;
// ----------------------------------------------------------------------------
// wxDropSource is used to start the drag-&-drop operation on associated
// wxDataObject object. It's responsible for giving UI feedback while dragging.
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxDropSource : public wxDropSourceBase
{
public:
// ctors: if you use default ctor you must call SetData() later!
//
// NB: the "wxWindow *win" parameter is unused and is here only for wxGTK
// compatibility, as well as both icon parameters
wxDropSource(wxWindow *win = NULL,
const wxCursor &cursorCopy = wxNullCursor,
const wxCursor &cursorMove = wxNullCursor,
const wxCursor &cursorStop = wxNullCursor);
wxDropSource(wxDataObject& data,
wxWindow *win = NULL,
const wxCursor &cursorCopy = wxNullCursor,
const wxCursor &cursorMove = wxNullCursor,
const wxCursor &cursorStop = wxNullCursor);
virtual ~wxDropSource();
// do it (call this in response to a mouse button press, for example)
// params: if bAllowMove is false, data can be only copied
virtual wxDragResult DoDragDrop(bool bAllowMove = FALSE);
// overridable: you may give some custom UI feedback during d&d operation
// in this function (it's called on each mouse move, so it shouldn't be
// too slow). Just return false if you want default feedback.
virtual bool GiveFeedback(wxDragResult effect);
protected:
void Init();
private:
wxIDropSource *m_pIDropSource; // the pointer to COM interface
};
#endif //_WX_OLEDROPSRC_H