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Initialized control member pointers and checked for null pointer
[wxWidgets.git] / include / wx / os2 / palette.h
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: palette.h
3 // Purpose: wxPalette class
4 // Author: David Webster
5 // Modified by:
6 // Created: 10/12/99
7 // RCS-ID: $Id$
8 // Copyright: (c) David Webster
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #ifndef _WX_PALETTE_H_
13 #define _WX_PALETTE_H_
14
15 #include "wx/gdiobj.h"
16
17 class WXDLLEXPORT wxPalette;
18
19 class WXDLLEXPORT wxPaletteRefData: public wxGDIRefData
20 {
21 friend class WXDLLEXPORT wxPalette;
22 public:
23 wxPaletteRefData();
24 ~wxPaletteRefData();
25 protected:
26 WXHPALETTE m_hPalette;
27 HPS m_hPS;
28 }; // end of CLASS wxPaletteRefData
29
30 #define M_PALETTEDATA ((wxPaletteRefData *)m_refData)
31
32 class WXDLLEXPORT wxPalette: public wxGDIObject
33 {
34 DECLARE_DYNAMIC_CLASS(wxPalette)
35
36 public:
37 wxPalette();
38 inline wxPalette(const wxPalette& rPalette) { Ref(rPalette); }
39
40 wxPalette( int n
41 ,const unsigned char* pRed
42 ,const unsigned char* pGreen
43 ,const unsigned char* pBlue
44 );
45 ~wxPalette();
46
47 bool Create( int n
48 ,const unsigned char* pRed
49 ,const unsigned char* pGreen
50 ,const unsigned char* pBlue
51 );
52 int GetPixel( const unsigned char cRed
53 ,const unsigned char cGreen
54 ,const unsigned char cBlue
55 ) const;
56 bool GetRGB( int nPixel
57 ,unsigned char* pRed
58 ,unsigned char* pGreen
59 ,unsigned char* pBlue
60 ) const;
61
62 virtual bool Ok(void) const { return (m_refData != NULL) ; }
63
64 inline wxPalette& operator = (const wxPalette& rPalette) { if (*this == rPalette) return (*this); Ref(rPalette); return *this; }
65 inline bool operator == (const wxPalette& rPalette) { return m_refData == rPalette.m_refData; }
66 inline bool operator != (const wxPalette& rPalette) { return m_refData != rPalette.m_refData; }
67
68 virtual bool FreeResource(bool bForce = FALSE);
69
70 inline WXHPALETTE GetHPALETTE(void) const { return (M_PALETTEDATA ? M_PALETTEDATA->m_hPalette : 0); }
71 void SetHPALETTE(WXHPALETTE hPalette);
72 void SetPS(HPS hPS);
73 }; // end of CLASS wxPalette
74
75 #define wxColorMap wxPalette
76 #define wxColourMap wxPalette
77
78 #endif
79 // _WX_PALETTE_H_
80