5ea105e0ba
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2719 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
146 lines
3.0 KiB
C++
146 lines
3.0 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: palette.cpp
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// Purpose: wxPalette
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// Author: Julian Smart
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// Modified by:
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// Created: 04/01/98
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart and Markus Holzem
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// Licence: wxWindows license
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation "palette.h"
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include <stdio.h>
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#include "wx/setup.h"
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#include "wx/palette.h"
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#endif
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#include <windows.h>
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#include "assert.h"
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#if !USE_SHARED_LIBRARIES
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IMPLEMENT_DYNAMIC_CLASS(wxPalette, wxGDIObject)
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#endif
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/*
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* Palette
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*
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*/
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wxPaletteRefData::wxPaletteRefData(void)
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{
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m_hPalette = 0;
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}
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wxPaletteRefData::~wxPaletteRefData(void)
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{
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if ( m_hPalette )
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::DeleteObject((HPALETTE) m_hPalette);
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}
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wxPalette::wxPalette(void)
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{
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}
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wxPalette::wxPalette(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue)
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{
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Create(n, red, green, blue);
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}
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wxPalette::~wxPalette(void)
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{
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// FreeResource(TRUE);
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}
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bool wxPalette::FreeResource(bool force)
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{
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if ( M_PALETTEDATA && M_PALETTEDATA->m_hPalette)
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{
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DeleteObject((HPALETTE)M_PALETTEDATA->m_hPalette);
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}
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return TRUE;
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}
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bool wxPalette::Create(int n, const unsigned char *red, const unsigned char *green, const unsigned char *blue)
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{
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UnRef();
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#ifdef __WXWINE__
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return (FALSE);
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#else
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m_refData = new wxPaletteRefData;
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NPLOGPALETTE npPal = (NPLOGPALETTE)LocalAlloc(LMEM_FIXED, sizeof(LOGPALETTE) +
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(WORD)n * sizeof(PALETTEENTRY));
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if (!npPal)
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return(FALSE);
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npPal->palVersion = 0x300;
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npPal->palNumEntries = n;
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int i;
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for (i = 0; i < n; i ++)
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{
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npPal->palPalEntry[i].peRed = red[i];
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npPal->palPalEntry[i].peGreen = green[i];
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npPal->palPalEntry[i].peBlue = blue[i];
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npPal->palPalEntry[i].peFlags = 0;
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}
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M_PALETTEDATA->m_hPalette = (WXHPALETTE) CreatePalette((LPLOGPALETTE)npPal);
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LocalFree((HANDLE)npPal);
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return TRUE;
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#endif
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}
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int wxPalette::GetPixel(const unsigned char red, const unsigned char green, const unsigned char blue) const
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{
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if ( !m_refData )
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return FALSE;
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return ::GetNearestPaletteIndex((HPALETTE) M_PALETTEDATA->m_hPalette, PALETTERGB(red, green, blue));
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}
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bool wxPalette::GetRGB(int index, unsigned char *red, unsigned char *green, unsigned char *blue) const
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{
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if ( !m_refData )
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return FALSE;
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if (index < 0 || index > 255)
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return FALSE;
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PALETTEENTRY entry;
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if (::GetPaletteEntries((HPALETTE) M_PALETTEDATA->m_hPalette, index, 1, &entry))
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{
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*red = entry.peRed;
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*green = entry.peGreen;
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*blue = entry.peBlue;
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return TRUE;
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} else
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return FALSE;
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}
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void wxPalette::SetHPALETTE(WXHPALETTE pal)
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{
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if ( !m_refData )
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m_refData = new wxPaletteRefData;
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M_PALETTEDATA->m_hPalette = pal;
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}
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