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e9576ca5 SC |
1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: palette.cpp | |
3 | // Purpose: wxPalette | |
4 | // Author: AUTHOR | |
5 | // Modified by: | |
6 | // Created: ??/??/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) AUTHOR | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifdef __GNUG__ | |
13 | #pragma implementation "palette.h" | |
14 | #endif | |
15 | ||
fedad417 GD |
16 | #include "wx/defs.h" |
17 | ||
18 | #if wxUSE_PALETTE | |
19 | ||
e9576ca5 SC |
20 | #include "wx/palette.h" |
21 | ||
2f1ae414 | 22 | #if !USE_SHARED_LIBRARIES |
e9576ca5 | 23 | IMPLEMENT_DYNAMIC_CLASS(wxPalette, wxGDIObject) |
2f1ae414 | 24 | #endif |
e9576ca5 SC |
25 | |
26 | /* | |
27 | * Palette | |
28 | * | |
29 | */ | |
30 | ||
31 | wxPaletteRefData::wxPaletteRefData() | |
32 | { | |
519cb848 SC |
33 | m_palette = NULL ; |
34 | m_count = 0 ; | |
e9576ca5 SC |
35 | } |
36 | ||
37 | wxPaletteRefData::~wxPaletteRefData() | |
38 | { | |
519cb848 | 39 | delete[] m_palette ; |
e9576ca5 SC |
40 | } |
41 | ||
42 | wxPalette::wxPalette() | |
43 | { | |
44 | } | |
45 | ||
46 | wxPalette::wxPalette(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue) | |
47 | { | |
48 | Create(n, red, green, blue); | |
49 | } | |
50 | ||
51 | wxPalette::~wxPalette() | |
52 | { | |
53 | } | |
54 | ||
55 | bool wxPalette::Create(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue) | |
56 | { | |
57 | UnRef(); | |
58 | ||
59 | m_refData = new wxPaletteRefData; | |
60 | ||
519cb848 SC |
61 | M_PALETTEDATA->m_count = n ; |
62 | M_PALETTEDATA->m_palette = new wxColour[n] ; | |
63 | ||
64 | for ( int i = 0 ; i < n ; ++i) | |
65 | { | |
66 | M_PALETTEDATA->m_palette[i].Set( red[i] , green[i] , blue[i] ) ; | |
67 | } | |
e9576ca5 SC |
68 | |
69 | return FALSE; | |
70 | } | |
71 | ||
72 | int wxPalette::GetPixel(const unsigned char red, const unsigned char green, const unsigned char blue) const | |
73 | { | |
74 | if ( !m_refData ) | |
519cb848 SC |
75 | return -1; |
76 | ||
77 | long bestdiff = 3 * 256 ; | |
78 | long bestpos = 0 ; | |
79 | long currentdiff ; | |
80 | ||
81 | for ( int i = 0 ; i < M_PALETTEDATA->m_count ; ++i ) | |
82 | { | |
83 | const wxColour& col = &M_PALETTEDATA->m_palette[i] ; | |
84 | currentdiff = abs ( col.Red() - red ) + abs( col.Green() - green ) + abs ( col.Blue() - blue ) ; | |
85 | if ( currentdiff < bestdiff ) | |
86 | { | |
87 | bestdiff = currentdiff ; | |
88 | bestpos = i ; | |
89 | if ( bestdiff == 0 ) | |
90 | break ; | |
91 | } | |
92 | } | |
93 | ||
94 | return bestpos; | |
e9576ca5 SC |
95 | } |
96 | ||
97 | bool wxPalette::GetRGB(int index, unsigned char *red, unsigned char *green, unsigned char *blue) const | |
98 | { | |
99 | if ( !m_refData ) | |
100 | return FALSE; | |
101 | ||
519cb848 | 102 | if (index < 0 || index >= M_PALETTEDATA->m_count) |
e9576ca5 SC |
103 | return FALSE; |
104 | ||
519cb848 SC |
105 | const wxColour& col = &M_PALETTEDATA->m_palette[index] ; |
106 | *red = col.Red() ; | |
107 | *green = col.Green() ; | |
108 | *blue = col.Blue() ; | |
109 | ||
110 | return TRUE; | |
e9576ca5 SC |
111 | } |
112 | ||
fedad417 GD |
113 | #endif |
114 | // wxUSE_PALETTE | |
e9576ca5 | 115 |