2d120f8391
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1408 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
179 lines
4.7 KiB
C++
179 lines
4.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: dnd.h
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// Purpose: declaration of wxDropTarget, wxDropSource classes
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// Author: Julian Smart
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// RCS-ID: $Id$
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// Copyright: (c) 1998 Vadim Zeitlin, Robert Roebling, Julian Smart
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_DND_H_
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#define _WX_DND_H_
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#ifdef __GNUG__
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#pragma interface
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#endif
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#include "wx/defs.h"
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#if wxUSE_DRAG_AND_DROP
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#include "wx/object.h"
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#include "wx/string.h"
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#include "wx/dataobj.h"
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#include "wx/cursor.h"
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//-------------------------------------------------------------------------
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// classes
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//-------------------------------------------------------------------------
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class WXDLLEXPORT wxWindow;
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class WXDLLEXPORT wxDropTarget;
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class WXDLLEXPORT wxTextDropTarget;
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class WXDLLEXPORT wxFileDropTarget;
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class WXDLLEXPORT wxPrivateDropTarget;
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class WXDLLEXPORT wxDropSource;
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//-------------------------------------------------------------------------
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// wxDropTarget
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//-------------------------------------------------------------------------
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class WXDLLEXPORT wxDropTarget: public wxObject
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{
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public:
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wxDropTarget();
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~wxDropTarget();
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virtual void OnEnter() { }
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virtual void OnLeave() { }
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virtual bool OnDrop( long x, long y, const void *data, size_t size ) = 0;
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// Override these to indicate what kind of data you support:
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virtual size_t GetFormatCount() const = 0;
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virtual wxDataFormat GetFormat(size_t n) const = 0;
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// implementation
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};
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//-------------------------------------------------------------------------
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// wxTextDropTarget
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//-------------------------------------------------------------------------
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class WXDLLEXPORT wxTextDropTarget: public wxDropTarget
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{
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public:
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wxTextDropTarget() {};
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virtual bool OnDrop( long x, long y, const void *data, size_t size );
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virtual bool OnDropText( long x, long y, const char *psz );
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protected:
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virtual size_t GetFormatCount() const;
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virtual wxDataFormat GetFormat(size_t n) const;
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};
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//-------------------------------------------------------------------------
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// wxPrivateDropTarget
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//-------------------------------------------------------------------------
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class WXDLLEXPORT wxPrivateDropTarget: public wxDropTarget
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{
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public:
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wxPrivateDropTarget();
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// you have to override OnDrop to get at the data
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// the string ID identifies the format of clipboard or DnD data. a word
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// processor would e.g. add a wxTextDataObject and a wxPrivateDataObject
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// to the clipboard - the latter with the Id "WXWORD_FORMAT".
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void SetId( const wxString& id )
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{ m_id = id; }
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wxString GetId()
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{ return m_id; }
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private:
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virtual size_t GetFormatCount() const;
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virtual wxDataFormat GetFormat(size_t n) const;
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wxString m_id;
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};
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// ----------------------------------------------------------------------------
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// A drop target which accepts files (dragged from File Manager or Explorer)
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxFileDropTarget: public wxDropTarget
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{
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public:
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wxFileDropTarget() {};
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virtual bool OnDrop( long x, long y, const void *data, size_t size );
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virtual bool OnDropFiles( long x, long y,
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size_t nFiles, const char * const aszFiles[] );
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protected:
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virtual size_t GetFormatCount() const;
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virtual wxDataFormat GetFormat(size_t n) const;
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};
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//-------------------------------------------------------------------------
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// wxDropSource
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//-------------------------------------------------------------------------
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enum wxDragResult
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{
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wxDragError, // error prevented the d&d operation from completing
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wxDragNone, // drag target didn't accept the data
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wxDragCopy, // the data was successfully copied
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wxDragMove, // the data was successfully moved
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wxDragCancel // the operation was cancelled by user (not an error)
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};
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class WXDLLEXPORT wxDropSource: public wxObject
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{
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public:
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wxDropSource( wxWindow *win );
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wxDropSource( wxDataObject &data, wxWindow *win );
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~wxDropSource(void);
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void SetData( wxDataObject &data );
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wxDragResult DoDragDrop( bool bAllowMove = FALSE );
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virtual bool GiveFeedback( wxDragResult WXUNUSED(effect), bool WXUNUSED(bScrolling) ) { return TRUE; };
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// implementation
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#if 0
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void RegisterWindow(void);
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void UnregisterWindow(void);
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wxWindow *m_window;
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wxDragResult m_retValue;
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wxDataObject *m_data;
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wxCursor m_defaultCursor;
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wxCursor m_goaheadCursor;
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#endif
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};
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#endif
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// wxUSE_DRAG_AND_DROP
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#endif
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//_WX_DND_H_
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