/[pcsx2_0.9.7]/trunk/3rdparty/wxWidgets/src/generic/paletteg.cpp
ViewVC logotype

Contents of /trunk/3rdparty/wxWidgets/src/generic/paletteg.cpp

Parent Directory Parent Directory | Revision Log Revision Log


Revision 31 - (show annotations) (download)
Tue Sep 7 03:24:11 2010 UTC (10 years, 1 month ago) by william
File size: 3363 byte(s)
committing r3113 initial commit again...
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/generic/paletteg.cpp
3 // Purpose:
4 // Author: Robert Roebling
5 // Created: 01/02/97
6 // RCS-ID: $Id: paletteg.cpp 42752 2006-10-30 19:26:48Z VZ $
7 // Copyright: (c) 1998 Robert Roebling and Julian Smart
8 // Licence: wxWindows licence
9 /////////////////////////////////////////////////////////////////////////////
10
11 // For compilers that support precompilation, includes "wx.h".
12 #include "wx/wxprec.h"
13
14 #if defined(__BORLANDC__)
15 #pragma hdrstop
16 #endif
17
18 #if wxUSE_PALETTE
19
20 #include "wx/palette.h"
21
22 //-----------------------------------------------------------------------------
23 // wxPalette
24 //-----------------------------------------------------------------------------
25
26 struct wxPaletteEntry
27 {
28 unsigned char red, green, blue;
29 };
30
31 class wxPaletteRefData: public wxObjectRefData
32 {
33 public:
34
35 wxPaletteRefData(void);
36 virtual ~wxPaletteRefData(void);
37
38 int m_count;
39 wxPaletteEntry *m_entries;
40 };
41
42 wxPaletteRefData::wxPaletteRefData()
43 {
44 m_count = 0;
45 m_entries = NULL;
46 }
47
48 wxPaletteRefData::~wxPaletteRefData()
49 {
50 delete[] m_entries;
51 }
52
53 //-----------------------------------------------------------------------------
54
55 #define M_PALETTEDATA ((wxPaletteRefData *)m_refData)
56
57 IMPLEMENT_DYNAMIC_CLASS(wxPalette,wxGDIObject)
58
59 wxPalette::wxPalette()
60 {
61 m_refData = NULL;
62 }
63
64 wxPalette::wxPalette(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue)
65 {
66 Create(n, red, green, blue);
67 }
68
69 wxPalette::~wxPalette()
70 {
71 }
72
73 bool wxPalette::IsOk() const
74 {
75 return (m_refData != NULL);
76 }
77
78 int wxPalette::GetColoursCount() const
79 {
80 if (m_refData)
81 return M_PALETTEDATA->m_count;
82
83 return 0;
84 }
85
86 bool wxPalette::Create(int n,
87 const unsigned char *red,
88 const unsigned char *green,
89 const unsigned char *blue)
90 {
91 UnRef();
92 m_refData = new wxPaletteRefData();
93
94 M_PALETTEDATA->m_count = n;
95 M_PALETTEDATA->m_entries = new wxPaletteEntry[n];
96
97 wxPaletteEntry *e = M_PALETTEDATA->m_entries;
98 for (int i = 0; i < n; i++, e++)
99 {
100 e->red = red[i];
101 e->green = green[i];
102 e->blue = blue[i];
103 }
104
105 return true;
106 }
107
108 int wxPalette::GetPixel( unsigned char red,
109 unsigned char green,
110 unsigned char blue ) const
111 {
112 if (!m_refData) return wxNOT_FOUND;
113
114 int closest = 0;
115 double d,distance = 1000.0; // max. dist is 256
116
117 wxPaletteEntry *e = M_PALETTEDATA->m_entries;
118 for (int i = 0; i < M_PALETTEDATA->m_count; i++, e++)
119 {
120 if ((d = 0.299 * abs(red - e->red) +
121 0.587 * abs(green - e->green) +
122 0.114 * abs(blue - e->blue)) < distance) {
123 distance = d;
124 closest = i;
125 }
126 }
127 return closest;
128 }
129
130 bool wxPalette::GetRGB(int pixel,
131 unsigned char *red,
132 unsigned char *green,
133 unsigned char *blue) const
134 {
135 if (!m_refData) return false;
136 if (pixel >= M_PALETTEDATA->m_count) return false;
137
138 wxPaletteEntry& p = M_PALETTEDATA->m_entries[pixel];
139 if (red) *red = p.red;
140 if (green) *green = p.green;
141 if (blue) *blue = p.blue;
142 return true;
143 }
144
145 #endif // wxUSE_PALETTE

  ViewVC Help
Powered by ViewVC 1.1.22