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1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // Name: ole/droptgt.h | |
3 | // Purpose: declaration of the wxDropTarget class | |
4 | // Author: Vadim Zeitlin | |
e1ee679c | 5 | // Modified by: |
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6 | // Created: 06.03.98 |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> | |
65571936 | 9 | // Licence: wxWindows licence |
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10 | /////////////////////////////////////////////////////////////////////////////// |
11 | ||
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12 | #ifndef _WX_OLEDROPTGT_H |
13 | #define _WX_OLEDROPTGT_H | |
bbf1f0e5 | 14 | |
0a0e6a5b | 15 | #if wxUSE_DRAG_AND_DROP |
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16 | |
17 | // ---------------------------------------------------------------------------- | |
18 | // forward declarations | |
19 | // ---------------------------------------------------------------------------- | |
9e2896e5 | 20 | |
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21 | class wxIDropTarget; |
22 | struct IDataObject; | |
23 | ||
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24 | // ---------------------------------------------------------------------------- |
25 | // An instance of the class wxDropTarget may be associated with any wxWindow | |
26 | // derived object via SetDropTarget() function. If this is done, the virtual | |
27 | // methods of wxDropTarget are called when something is dropped on the window. | |
e1ee679c | 28 | // |
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29 | // Note that wxDropTarget is an abstract base class (ABC) and you should derive |
30 | // your own class from it implementing pure virtual function in order to use it | |
31 | // (all of them, including protected ones which are called by the class itself) | |
32 | // ---------------------------------------------------------------------------- | |
9e2896e5 | 33 | |
53a2db12 | 34 | class WXDLLIMPEXP_CORE wxDropTarget : public wxDropTargetBase |
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35 | { |
36 | public: | |
e1ee679c | 37 | // ctor & dtor |
9e2896e5 | 38 | wxDropTarget(wxDataObject *dataObject = NULL); |
e1ee679c | 39 | virtual ~wxDropTarget(); |
bbf1f0e5 | 40 | |
e1ee679c VZ |
41 | // normally called by wxWindow on window creation/destruction, but might be |
42 | // called `manually' as well. Register() returns true on success. | |
43 | bool Register(WXHWND hwnd); | |
44 | void Revoke(WXHWND hwnd); | |
bbf1f0e5 | 45 | |
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46 | // provide default implementation for base class pure virtuals |
47 | virtual bool OnDrop(wxCoord x, wxCoord y); | |
48 | virtual bool GetData(); | |
49 | ||
50 | // implementation only from now on | |
51 | // ------------------------------- | |
52 | ||
e1ee679c | 53 | // do we accept this kind of data? |
9e2896e5 VZ |
54 | bool IsAcceptedData(IDataObject *pIDataSource) const; |
55 | ||
56 | // give us the data source from IDropTarget::Drop() - this is later used by | |
57 | // GetData() when it's called from inside OnData() | |
58 | void SetDataSource(IDataObject *pIDataSource); | |
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59 | |
60 | private: | |
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61 | // helper used by IsAcceptedData() and GetData() |
62 | wxDataFormat GetSupportedFormat(IDataObject *pIDataSource) const; | |
63 | ||
64 | wxIDropTarget *m_pIDropTarget; // the pointer to our COM interface | |
65 | IDataObject *m_pIDataSource; // the pointer to the source data object | |
22f3361e VZ |
66 | |
67 | DECLARE_NO_COPY_CLASS(wxDropTarget) | |
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68 | }; |
69 | ||
0a0e6a5b WS |
70 | #endif //wxUSE_DRAG_AND_DROP |
71 | ||
bbcdf8bc | 72 | #endif //_WX_OLEDROPTGT_H |