Files
wxWidgets/src/generic/paletteg.cpp
Vadim Zeitlin 3f66f6a5b3 Remove all lines containing cvs/svn "$Id$" keyword.
This keyword is not expanded by Git which means it's not replaced with the
correct revision value in the releases made using git-based scripts and it's
confusing to have lines with unexpanded "$Id$" in the released files. As
expanding them with Git is not that simple (it could be done with git archive
and export-subst attribute) and there are not many benefits in having them in
the first place, just remove all these lines.

If nothing else, this will make an eventual transition to Git simpler.

Closes #14487.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74602 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2013-07-26 16:02:46 +00:00

158 lines
3.7 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: src/generic/paletteg.cpp
// Purpose:
// Author: Robert Roebling
// Created: 01/02/97
// Copyright: (c) 1998 Robert Roebling and Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#if defined(__BORLANDC__)
#pragma hdrstop
#endif
#if wxUSE_PALETTE
#include "wx/palette.h"
//-----------------------------------------------------------------------------
// wxPalette
//-----------------------------------------------------------------------------
struct wxPaletteEntry
{
unsigned char red, green, blue;
};
class wxPaletteRefData : public wxGDIRefData
{
public:
wxPaletteRefData();
wxPaletteRefData(const wxPaletteRefData& palette);
virtual ~wxPaletteRefData();
int m_count;
wxPaletteEntry *m_entries;
};
wxPaletteRefData::wxPaletteRefData()
{
m_count = 0;
m_entries = NULL;
}
wxPaletteRefData::wxPaletteRefData(const wxPaletteRefData& palette)
{
m_count = palette.m_count;
m_entries = new wxPaletteEntry[m_count];
for ( int i = 0; i < m_count; i++ )
m_entries[i] = palette.m_entries[i];
}
wxPaletteRefData::~wxPaletteRefData()
{
delete[] m_entries;
}
//-----------------------------------------------------------------------------
#define M_PALETTEDATA ((wxPaletteRefData *)m_refData)
IMPLEMENT_DYNAMIC_CLASS(wxPalette,wxGDIObject)
wxPalette::wxPalette()
{
m_refData = NULL;
}
wxPalette::wxPalette(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue)
{
Create(n, red, green, blue);
}
wxPalette::~wxPalette()
{
}
int wxPalette::GetColoursCount() const
{
if (m_refData)
return M_PALETTEDATA->m_count;
return 0;
}
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_entries = new wxPaletteEntry[n];
wxPaletteEntry *e = M_PALETTEDATA->m_entries;
for (int i = 0; i < n; i++, e++)
{
e->red = red[i];
e->green = green[i];
e->blue = blue[i];
}
return true;
}
int wxPalette::GetPixel( unsigned char red,
unsigned char green,
unsigned char blue ) const
{
if (!m_refData) return wxNOT_FOUND;
int closest = 0;
double d,distance = 1000.0; // max. dist is 256
wxPaletteEntry *e = M_PALETTEDATA->m_entries;
for (int i = 0; i < M_PALETTEDATA->m_count; i++, e++)
{
if ((d = 0.299 * abs(red - e->red) +
0.587 * abs(green - e->green) +
0.114 * abs(blue - e->blue)) < distance) {
distance = d;
closest = i;
}
}
return closest;
}
bool wxPalette::GetRGB(int pixel,
unsigned char *red,
unsigned char *green,
unsigned char *blue) const
{
if (!m_refData) return false;
if (pixel >= M_PALETTEDATA->m_count) return false;
wxPaletteEntry& p = M_PALETTEDATA->m_entries[pixel];
if (red) *red = p.red;
if (green) *green = p.green;
if (blue) *blue = p.blue;
return true;
}
wxGDIRefData *wxPalette::CreateGDIRefData() const
{
return new wxPaletteRefData;
}
wxGDIRefData *wxPalette::CloneGDIRefData(const wxGDIRefData *data) const
{
return new wxPaletteRefData(*static_cast<const wxPaletteRefData *>(data));
}
#endif // wxUSE_PALETTE