1
/////////////////////////////////////////////////////////////////////////////
2
// Name: src/osx/palette.cpp
4
// Author: Stefan Csomor
7
// RCS-ID: $Id: palette.cpp 67216 2011-03-16 10:56:41Z SC $
8
// Copyright: (c) Stefan Csomor
9
// Licence: wxWindows licence
10
/////////////////////////////////////////////////////////////////////////////
12
#include "wx/wxprec.h"
16
#include "wx/palette.h"
17
#include "wx/colour.h"
19
IMPLEMENT_DYNAMIC_CLASS(wxPalette, wxGDIObject)
21
// ============================================================================
23
// ============================================================================
25
class WXDLLEXPORT wxPaletteRefData: public wxGDIRefData
29
wxPaletteRefData(const wxPaletteRefData& data);
30
virtual ~wxPaletteRefData();
32
virtual bool IsOk() const { return m_count > 0; }
38
friend class WXDLLIMPEXP_FWD_CORE wxPalette;
40
wxDECLARE_NO_ASSIGN_CLASS(wxPaletteRefData);
43
wxPaletteRefData::wxPaletteRefData()
49
wxPaletteRefData::wxPaletteRefData(const wxPaletteRefData& data) : wxGDIRefData()
51
m_count = data.m_count;
52
m_palette = new wxColour[m_count];
53
for ( wxInt32 i = 0; i < m_count; i++ )
54
m_palette[i] = data.m_palette[i];
57
wxPaletteRefData::~wxPaletteRefData()
62
// ============================================================================
64
// ============================================================================
66
wxPalette::wxPalette()
70
wxPalette::wxPalette(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue)
72
Create(n, red, green, blue);
75
wxPalette::~wxPalette()
79
bool wxPalette::Create(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue)
83
m_refData = new wxPaletteRefData;
85
M_PALETTEDATA->m_count = n ;
86
M_PALETTEDATA->m_palette = new wxColour[n] ;
88
for ( int i = 0 ; i < n ; ++i)
90
M_PALETTEDATA->m_palette[i].Set( red[i] , green[i] , blue[i] ) ;
96
int wxPalette::GetPixel(unsigned char red, unsigned char green, unsigned char blue) const
101
long bestdiff = 3 * 256 ;
105
for ( int i = 0 ; i < M_PALETTEDATA->m_count ; ++i )
107
const wxColour& col = M_PALETTEDATA->m_palette[i] ;
108
currentdiff = abs ( col.Red() - red ) + abs( col.Green() - green ) + abs ( col.Blue() - blue ) ;
109
if ( currentdiff < bestdiff )
111
bestdiff = currentdiff ;
121
bool wxPalette::GetRGB(int index, unsigned char *red, unsigned char *green, unsigned char *blue) const
126
if (index < 0 || index >= M_PALETTEDATA->m_count)
129
const wxColour& col = M_PALETTEDATA->m_palette[index] ;
131
*green = col.Green() ;
137
int wxPalette::GetColoursCount() const
140
return M_PALETTEDATA->m_count;
145
wxGDIRefData *wxPalette::CreateGDIRefData() const
147
return new wxPaletteRefData;
150
wxGDIRefData *wxPalette::CloneGDIRefData(const wxGDIRefData *data) const
152
return new wxPaletteRefData(*static_cast<const wxPaletteRefData *>(data));
155
#endif // wxUSE_PALETTE