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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 | ||
12 | #ifndef _WX_GDIOBJ_H_BASE_ | |
13 | #define _WX_GDIOBJ_H_BASE_ | |
14 | ||
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 | ||
23 | class WXDLLIMPEXP_CORE wxGDIRefData: public wxObjectRefData { }; | |
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 | ||
34 | #if defined(__WXMSW__) || defined(__WXPM__) || defined(__WXPALMOS__) | |
35 | // Creates the resource | |
36 | virtual bool RealizeResource() { return false; } | |
37 | ||
38 | // Frees the resource | |
39 | virtual bool FreeResource(bool WXUNUSED(force) = false) { return false; } | |
40 | ||
41 | virtual bool IsFree() const { return false; } | |
42 | ||
43 | // Returns handle. | |
44 | virtual WXHANDLE GetResourceHandle() const { return 0; } | |
45 | #endif // defined(__WXMSW__) || defined(__WXPM__) | |
46 | ||
47 | DECLARE_DYNAMIC_CLASS(wxGDIObject) | |
48 | }; | |
49 | ||
50 | #endif | |
51 | // _WX_GDIOBJ_H_BASE_ |