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99d80019 JS |
1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: wx/gdiobj.h | |
3 | // Purpose: wxGDIObject base header | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: | |
7 | // Copyright: (c) Julian Smart | |
8 | // RCS-ID: $Id$ | |
9 | // Licence: wxWindows Licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
34138703 JS |
12 | #ifndef _WX_GDIOBJ_H_BASE_ |
13 | #define _WX_GDIOBJ_H_BASE_ | |
c801d85f | 14 | |
1de8d512 VZ |
15 | #include "wx/object.h" |
16 | ||
17 | // ---------------------------------------------------------------------------- | |
18 | // wxGDIRefData is the base class for wxXXXData structures which contain the | |
19 | // real data for the GDI object and are shared among all wxWin objects sharing | |
20 | // the same native GDI object | |
21 | // ---------------------------------------------------------------------------- | |
22 | ||
b5dbe15d | 23 | class WXDLLIMPEXP_FWD_CORE wxGDIRefData: public wxObjectRefData { }; |
1de8d512 VZ |
24 | |
25 | // ---------------------------------------------------------------------------- | |
26 | // wxGDIObject | |
27 | // ---------------------------------------------------------------------------- | |
28 | ||
29 | class WXDLLIMPEXP_CORE wxGDIObject: public wxObject | |
30 | { | |
31 | public: | |
32 | bool IsNull() const { return m_refData == NULL; } | |
33 | ||
43cf637f SC |
34 | // older version, for backwards compat |
35 | bool Ok() const { return IsOk(); } | |
36 | ||
37 | virtual bool IsOk() const { return (m_refData != NULL) ; } | |
38 | ||
d9c9196e | 39 | #if defined(__WXMSW__) || defined(__WXPM__) || defined(__WXPALMOS__) |
1de8d512 VZ |
40 | // Creates the resource |
41 | virtual bool RealizeResource() { return false; } | |
42 | ||
43 | // Frees the resource | |
44 | virtual bool FreeResource(bool WXUNUSED(force) = false) { return false; } | |
45 | ||
46 | virtual bool IsFree() const { return false; } | |
47 | ||
48 | // Returns handle. | |
49 | virtual WXHANDLE GetResourceHandle() const { return 0; } | |
d9c9196e | 50 | #endif // defined(__WXMSW__) || defined(__WXPM__) |
1de8d512 VZ |
51 | |
52 | DECLARE_DYNAMIC_CLASS(wxGDIObject) | |
53 | }; | |
c801d85f KB |
54 | |
55 | #endif | |
34138703 | 56 | // _WX_GDIOBJ_H_BASE_ |