1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: wx/msw/ole/dataform.h
3 // Purpose: declaration of the wxDataFormat class
4 // Author: Vadim Zeitlin
6 // Created: 19.10.99 (extracted from msw/ole/dataobj.h)
7 // Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
8 // Licence: wxWindows licence
9 ///////////////////////////////////////////////////////////////////////////////
11 #ifndef _WX_MSW_OLE_DATAFORM_H
12 #define _WX_MSW_OLE_DATAFORM_H
14 // ----------------------------------------------------------------------------
15 // wxDataFormat identifies the single format of data
16 // ----------------------------------------------------------------------------
18 class WXDLLIMPEXP_CORE wxDataFormat
21 // the clipboard formats under Win32 are WORD's
22 typedef unsigned short NativeFormat
;
24 wxDataFormat(NativeFormat format
= wxDF_INVALID
) { m_format
= format
; }
26 // we need constructors from all string types as implicit conversions to
27 // wxString don't apply when we already rely on implicit conversion of a,
28 // for example, "char *" string to wxDataFormat, and existing code does it
29 wxDataFormat(const wxString
& format
) { SetId(format
); }
30 wxDataFormat(const char *format
) { SetId(format
); }
31 wxDataFormat(const wchar_t *format
) { SetId(format
); }
32 wxDataFormat(const wxCStrData
& format
) { SetId(format
); }
34 wxDataFormat
& operator=(NativeFormat format
)
35 { m_format
= format
; return *this; }
36 wxDataFormat
& operator=(const wxDataFormat
& format
)
37 { m_format
= format
.m_format
; return *this; }
39 // default copy ctor/assignment operators ok
41 // comparison (must have both versions)
42 bool operator==(wxDataFormatId format
) const
43 { return m_format
== (NativeFormat
)format
; }
44 bool operator!=(wxDataFormatId format
) const
45 { return m_format
!= (NativeFormat
)format
; }
46 bool operator==(const wxDataFormat
& format
) const
47 { return m_format
== format
.m_format
; }
48 bool operator!=(const wxDataFormat
& format
) const
49 { return m_format
!= format
.m_format
; }
51 // explicit and implicit conversions to NativeFormat which is one of
52 // standard data types (implicit conversion is useful for preserving the
53 // compatibility with old code)
54 NativeFormat
GetFormatId() const { return m_format
; }
55 operator NativeFormat() const { return m_format
; }
57 // this works with standard as well as custom ids
58 void SetType(NativeFormat format
) { m_format
= format
; }
59 NativeFormat
GetType() const { return m_format
; }
61 // string ids are used for custom types - this SetId() must be used for
62 // application-specific formats
63 wxString
GetId() const;
64 void SetId(const wxString
& format
);
66 // returns true if the format is one of those defined in wxDataFormatId
67 bool IsStandard() const { return m_format
> 0 && m_format
< wxDF_PRIVATE
; }
70 NativeFormat m_format
;
73 #endif // _WX_MSW_OLE_DATAFORM_H