projects / wxWidgets.git / blame
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| 1737035f VZ |
1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: ole/dropsrc.h | |
| 3 | // Purpose: declaration of the wxDropSource class | |
| 4 | // Author: Vadim Zeitlin | |
| 5 | // Modified by: | |
| 6 | // Created: 06.03.98 | |
| 7 | // RCS-ID: $Id$ | |
| 8 | // Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr> | |
| bbcdf8bc | 9 | // Licence: wxWindows licence |
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10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | ||
| bbcdf8bc JS |
12 | #ifndef _WX_OLEDROPSRC_H |
| 13 | #define _WX_OLEDROPSRC_H | |
| 1737035f VZ |
14 | |
| 15 | #ifdef __GNUG__ | |
| 16 | #pragma interface | |
| 17 | #endif | |
| 18 | ||
| 19 | #if !USE_DRAG_AND_DROP | |
| 20 | #error "You should #define USE_DRAG_AND_DROP to 1 to compile this file!" | |
| 21 | #endif //WX_DRAG_DROP | |
| 22 | ||
| 23 | // ---------------------------------------------------------------------------- | |
| 24 | // forward declarations | |
| 25 | // ---------------------------------------------------------------------------- | |
| 26 | class wxIDropSource; | |
| 27 | class wxDataObject; | |
| 28 | ||
| 29 | // ---------------------------------------------------------------------------- | |
| 30 | // wxDropSource is used to start the drag-&-drop operation on associated | |
| 31 | // wxDataObject object. It's responsible for giving UI feedback while dragging. | |
| 32 | // ---------------------------------------------------------------------------- | |
| 33 | class wxDropSource | |
| 34 | { | |
| 35 | public: | |
| 36 | enum DragResult | |
| 37 | { | |
| 38 | Error, // error prevented the d&d operation from completing | |
| 39 | None, // drag target didn't accept the data | |
| 40 | Copy, // the data was successfully copied | |
| 41 | Move, // the data was successfully moved | |
| 42 | Cancel // the operation was cancelled by user (not an error) | |
| 43 | }; | |
| 44 | ||
| 45 | // ctors: if you use default ctor you must call SetData() later! | |
| 46 | wxDropSource(); | |
| 47 | wxDropSource(wxDataObject& data); | |
| 48 | ||
| 49 | void SetData(wxDataObject& data); | |
| 50 | ||
| 51 | virtual ~wxDropSource(); | |
| 52 | ||
| 53 | // do it (call this in response to a mouse button press, for example) | |
| 54 | // params: if bAllowMove is false, data can be only copied | |
| bb6290e3 | 55 | DragResult DoDragDrop(bool bAllowMove = FALSE); |
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56 | |
| 57 | // overridable: you may give some custom UI feedback during d&d operation | |
| 58 | // in this function (it's called on each mouse move, so it shouldn't be too | |
| 59 | // slow). Just return false if you want default feedback. | |
| 60 | virtual bool GiveFeedback(DragResult effect, bool bScrolling); | |
| 61 | ||
| 62 | protected: | |
| 63 | void Init(); | |
| 64 | ||
| 65 | wxDataObject *m_pData; // pointer to associated data object | |
| 66 | ||
| 67 | private: | |
| 68 | wxIDropSource *m_pIDropSource; // the pointer to COM interface | |
| 69 | }; | |
| 70 | ||
| bbcdf8bc | 71 | #endif //_WX_OLEDROPSRC_H |