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1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: wx/msw/gdiobj.h | |
3 | // Purpose: wxGDIObject class: base class for other GDI classes | |
4 | // Author: Marco Cavallini | |
5 | // Modified by: | |
6 | // Created: 11/11/2002 | |
7 | // RCS-ID: | |
8 | // Copyright: (c) KOAN SAS ( www.koansoftware.com ) | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifndef _WX_GDIOBJ_H_ | |
13 | #define _WX_GDIOBJ_H_ | |
14 | ||
15 | ||
16 | #include "wx/object.h" // base class | |
17 | ||
18 | // ---------------------------------------------------------------------------- | |
19 | // wxGDIRefData is the base class for wxXXXData structures which contain the | |
20 | // real data for the GDI object and are shared among all wxWin objects sharing | |
21 | // the same native GDI object | |
22 | // ---------------------------------------------------------------------------- | |
23 | ||
24 | class WXDLLEXPORT wxGDIRefData : public wxObjectRefData | |
25 | { | |
26 | // this class is intentionally left blank | |
27 | }; | |
28 | ||
29 | // ---------------------------------------------------------------------------- | |
30 | // wxGDIObject | |
31 | // ---------------------------------------------------------------------------- | |
32 | ||
33 | class WXDLLEXPORT wxGDIObject : public wxObject | |
34 | { | |
35 | public: | |
36 | wxGDIObject() { m_visible = FALSE; }; | |
37 | ||
38 | // Creates the resource | |
39 | virtual bool RealizeResource() { return FALSE; }; | |
40 | ||
41 | // Frees the resource | |
42 | virtual bool FreeResource(bool WXUNUSED(force) = FALSE) { return FALSE; } | |
43 | ||
44 | virtual bool IsFree() const { return FALSE; } | |
45 | ||
46 | bool IsNull() const { return (m_refData == 0); } | |
47 | ||
48 | // Returns handle. | |
49 | // virtual WXHANDLE GetResourceHandle() { return 0; } | |
50 | WXHANDLE GetResourceHandle() { return 0; } | |
51 | ||
52 | virtual bool GetVisible() { return m_visible; } | |
53 | virtual void SetVisible(bool v) { m_visible = v; } | |
54 | ||
55 | protected: | |
56 | bool m_visible; // TRUE only if we should delete this object ourselves | |
57 | ||
58 | private: | |
59 | DECLARE_DYNAMIC_CLASS(wxGDIObject) | |
60 | }; | |
61 | ||
62 | #endif | |
63 | // _WX_GDIOBJ_H_ |