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[wxWidgets.git] / include / wx / gtk1 / colour.h
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: colour.h
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10
11 #ifndef __GTKCOLOURH__
12 #define __GTKCOLOURH__
13
14 #ifdef __GNUG__
15 #pragma interface
16 #endif
17
18 #include "wx/defs.h"
19 #include "wx/object.h"
20 #include "wx/string.h"
21 #include "wx/gdiobj.h"
22 #include "wx/palette.h"
23
24 //-----------------------------------------------------------------------------
25 // classes
26 //-----------------------------------------------------------------------------
27
28 class wxDC;
29 class wxPaintDC;
30 class wxBitmap;
31 class wxWindow;
32
33 class wxColour;
34
35 //-----------------------------------------------------------------------------
36 // wxColour
37 //-----------------------------------------------------------------------------
38
39 class wxColour: public wxGDIObject
40 {
41 public:
42 wxColour() { }
43
44 // Construct from RGB
45 wxColour( unsigned char red, unsigned char green, unsigned char blue );
46 wxColour( unsigned long colRGB ) { Set(colRGB); }
47
48 // Implicit conversion from the colour name
49 wxColour( const wxString &colourName ) { InitFromName(colourName); }
50 wxColour( const char *colourName ) { InitFromName(colourName); }
51
52 wxColour( const wxColour& col ) { Ref(col); }
53 wxColour& operator = ( const wxColour& col ) { Ref(col); return *this; }
54
55 ~wxColour();
56
57 bool Ok() const { return m_refData != NULL; }
58
59 bool operator == ( const wxColour& col ) const;
60 bool operator != ( const wxColour& col ) const { return !(*this == col); }
61
62 void Set( unsigned char red, unsigned char green, unsigned char blue );
63 void Set( unsigned long colRGB )
64 {
65 // We don't need to know sizeof(long) here because we assume that the three
66 // least significant bytes contain the R, G and B values
67 Set((unsigned char)colRGB,
68 (unsigned char)(colRGB >> 8),
69 (unsigned char)(colRGB >> 16));
70 }
71
72 unsigned char Red() const;
73 unsigned char Green() const;
74 unsigned char Blue() const;
75
76
77 // Implementation part
78 void CalcPixel( GdkColormap *cmap );
79 int GetPixel() const;
80 GdkColor *GetColor() const;
81
82 protected:
83 // ref counting code
84 virtual wxObjectRefData *CreateRefData() const;
85 virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
86
87 // Helper functions
88 void InitFromName(const wxString& colourName);
89
90 private:
91 DECLARE_DYNAMIC_CLASS(wxColour)
92 };
93
94 #endif // __GTKCOLOURH__