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added test for writing empty value to the config
[wxWidgets.git] / include / wx / gtk1 / dataobj2.h
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1///////////////////////////////////////////////////////////////////////////////
2// Name: gtk/dataobj2.h
3// Purpose: declaration of standard wxDataObjectSimple-derived classes
4// Author: Robert Roebling
5// Created: 19.10.99 (extracted from gtk/dataobj.h)
6// RCS-ID: $Id$
7// Copyright: (c) 1998, 1999 Vadim Zeitlin, Robert Roebling
8// Licence: wxWindows license
9///////////////////////////////////////////////////////////////////////////////
10
11#ifndef _WX_GTK_DATAOBJ2_H_
12#define _WX_GTK_DATAOBJ2_H_
13
14#ifdef __GNUG__
15 #pragma interface "dataobj.h"
16#endif
17
18// ----------------------------------------------------------------------------
19// wxBitmapDataObject is a specialization of wxDataObject for bitmaps
20// ----------------------------------------------------------------------------
21
22class wxBitmapDataObject : public wxBitmapDataObjectBase
23{
24public:
25 // ctors
26 wxBitmapDataObject();
27 wxBitmapDataObject(const wxBitmap& bitmap);
28
29 // destr
30 ~wxBitmapDataObject();
31
32 // override base class virtual to update PNG data too
33 virtual void SetBitmap(const wxBitmap& bitmap);
34
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35 // implement base class pure virtuals
36 // ----------------------------------
37
38 virtual size_t GetDataSize() const { return m_pngSize; }
39 virtual bool GetDataHere(void *buf) const;
40 virtual bool SetData(size_t len, const void *buf);
41
42protected:
43 void Init() { m_pngData = (void *)NULL; m_pngSize = 0; }
44 void Clear() { free(m_pngData); }
45 void ClearAll() { Clear(); Init(); }
46
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47 size_t m_pngSize;
48 void *m_pngData;
49
50 void DoConvertToPng();
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51
52private:
53 // virtual function hiding supression
54 size_t GetDataSize(const wxDataFormat& format) const
55 { return(wxDataObjectSimple::GetDataSize(format)); }
56 bool GetDataHere(const wxDataFormat& format, void* pBuf) const
57 { return(wxDataObjectSimple::GetDataHere(format, pBuf)); }
58 bool SetData(const wxDataFormat& format, size_t nLen, const void* pBuf)
59 { return(wxDataObjectSimple::SetData(format, nLen, pBuf)); }
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60};
61
62// ----------------------------------------------------------------------------
63// wxFileDataObject is a specialization of wxDataObject for file names
64// ----------------------------------------------------------------------------
65
66class wxFileDataObject : public wxFileDataObjectBase
67{
68public:
69 // implement base class pure virtuals
70 // ----------------------------------
71
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72 void AddFile( const wxString &filename );
73
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74 virtual size_t GetDataSize() const;
75 virtual bool GetDataHere(void *buf) const;
76 virtual bool SetData(size_t len, const void *buf);
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77
78private:
79 // virtual function hiding supression
80 size_t GetDataSize(const wxDataFormat& format) const
81 { return(wxDataObjectSimple::GetDataSize(format)); }
82 bool GetDataHere(const wxDataFormat& format, void* pBuf) const
83 { return(wxDataObjectSimple::GetDataHere(format, pBuf)); }
84 bool SetData(const wxDataFormat& format, size_t nLen, const void* pBuf)
85 { return(wxDataObjectSimple::SetData(format, nLen, pBuf)); }
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86};
87
88#endif // _WX_GTK_DATAOBJ2_H_
89