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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: gdiobj.h | |
3 | // Purpose: wxGDIObject class: base class for other GDI classes | |
4 | // Author: David Webster | |
5 | // Modified by: | |
6 | // Created: ??/??/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) David Webster | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifndef _WX_GDIOBJ_H_ | |
13 | #define _WX_GDIOBJ_H_ | |
14 | ||
15 | #include "wx/object.h" | |
16 | ||
17 | class WXDLLEXPORT wxGDIRefData: public wxObjectRefData | |
18 | { | |
19 | public: | |
20 | inline wxGDIRefData() | |
21 | { } | |
22 | }; | |
23 | ||
24 | #define M_GDIDATA ((wxGDIRefData *)m_refData) | |
25 | ||
26 | class WXDLLEXPORT wxGDIObject: public wxObject | |
27 | { | |
28 | DECLARE_DYNAMIC_CLASS(wxGDIObject) | |
29 | public: | |
30 | inline wxGDIObject() { m_visible = FALSE; }; | |
31 | inline ~wxGDIObject() {}; | |
32 | ||
33 | // Creates the resource | |
34 | virtual bool RealizeResource(void) { return FALSE; }; | |
35 | ||
36 | // Frees the resource | |
37 | virtual bool FreeResource(bool WXUNUSED(force) = FALSE) { return FALSE; }; | |
38 | ||
39 | virtual bool IsFree(void) const { return FALSE; }; | |
40 | ||
41 | inline bool IsNull() const { return (m_refData == 0); } | |
42 | ||
43 | virtual bool GetVisible() { return m_visible; } | |
44 | virtual void SetVisible(bool v) { m_visible = v; } | |
45 | ||
46 | protected: | |
47 | bool m_visible; // Can a pointer to this object be safely taken? | |
48 | // - only if created within FindOrCreate... | |
49 | }; | |
50 | ||
51 | #endif | |
52 | // _WX_GDIOBJ_H_ |