ad81651f00
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4950 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
108 lines
2.2 KiB
C++
108 lines
2.2 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: palette.cpp
|
|
// Purpose: wxPalette
|
|
// Author: AUTHOR
|
|
// Modified by:
|
|
// Created: ??/??/98
|
|
// RCS-ID: $Id$
|
|
// Copyright: (c) AUTHOR
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifdef __GNUG__
|
|
#pragma implementation "palette.h"
|
|
#endif
|
|
|
|
#include "wx/palette.h"
|
|
|
|
IMPLEMENT_DYNAMIC_CLASS(wxPalette, wxGDIObject)
|
|
|
|
/*
|
|
* Palette
|
|
*
|
|
*/
|
|
|
|
wxPaletteRefData::wxPaletteRefData()
|
|
{
|
|
m_palette = NULL ;
|
|
m_count = 0 ;
|
|
}
|
|
|
|
wxPaletteRefData::~wxPaletteRefData()
|
|
{
|
|
delete[] m_palette ;
|
|
}
|
|
|
|
wxPalette::wxPalette()
|
|
{
|
|
}
|
|
|
|
wxPalette::wxPalette(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue)
|
|
{
|
|
Create(n, red, green, blue);
|
|
}
|
|
|
|
wxPalette::~wxPalette()
|
|
{
|
|
}
|
|
|
|
bool wxPalette::Create(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue)
|
|
{
|
|
UnRef();
|
|
|
|
m_refData = new wxPaletteRefData;
|
|
|
|
M_PALETTEDATA->m_count = n ;
|
|
M_PALETTEDATA->m_palette = new wxColour[n] ;
|
|
|
|
for ( int i = 0 ; i < n ; ++i)
|
|
{
|
|
M_PALETTEDATA->m_palette[i].Set( red[i] , green[i] , blue[i] ) ;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
int wxPalette::GetPixel(const unsigned char red, const unsigned char green, const unsigned char blue) const
|
|
{
|
|
if ( !m_refData )
|
|
return -1;
|
|
|
|
long bestdiff = 3 * 256 ;
|
|
long bestpos = 0 ;
|
|
long currentdiff ;
|
|
|
|
for ( int i = 0 ; i < M_PALETTEDATA->m_count ; ++i )
|
|
{
|
|
const wxColour& col = &M_PALETTEDATA->m_palette[i] ;
|
|
currentdiff = abs ( col.Red() - red ) + abs( col.Green() - green ) + abs ( col.Blue() - blue ) ;
|
|
if ( currentdiff < bestdiff )
|
|
{
|
|
bestdiff = currentdiff ;
|
|
bestpos = i ;
|
|
if ( bestdiff == 0 )
|
|
break ;
|
|
}
|
|
}
|
|
|
|
return bestpos;
|
|
}
|
|
|
|
bool wxPalette::GetRGB(int index, unsigned char *red, unsigned char *green, unsigned char *blue) const
|
|
{
|
|
if ( !m_refData )
|
|
return FALSE;
|
|
|
|
if (index < 0 || index >= M_PALETTEDATA->m_count)
|
|
return FALSE;
|
|
|
|
const wxColour& col = &M_PALETTEDATA->m_palette[index] ;
|
|
*red = col.Red() ;
|
|
*green = col.Green() ;
|
|
*blue = col.Blue() ;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|