3f66f6a5b3
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262 lines
6.9 KiB
C++
262 lines
6.9 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/x11/colour.cpp
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// Purpose: wxColour class
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// Author: Julian Smart, Robert Roebling
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// Modified by:
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// Created: 17/09/98
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// Copyright: (c) Julian Smart, Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#include "wx/colour.h"
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#ifndef WX_PRECOMP
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#include "wx/app.h"
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#include "wx/gdicmn.h"
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#endif
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#include "wx/x11/private.h"
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//-----------------------------------------------------------------------------
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// wxColour
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//-----------------------------------------------------------------------------
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class wxColourRefData : public wxGDIRefData
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{
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public:
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wxColourRefData()
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{
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m_color.red = 0;
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m_color.green = 0;
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m_color.blue = 0;
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m_color.pixel = 0;
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m_colormap = NULL;
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m_hasPixel = false;
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}
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wxColourRefData(const wxColourRefData& data)
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{
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m_color = data.m_color;
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m_colormap = data.m_colormap;
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m_hasPixel = data.m_hasPixel;
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}
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virtual ~wxColourRefData()
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{
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FreeColour();
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}
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bool operator==(const wxColourRefData& data) const
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{
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return (m_colormap == data.m_colormap &&
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m_hasPixel == data.m_hasPixel &&
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m_color.red == data.m_color.red &&
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m_color.green == data.m_color.green &&
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m_color.blue == data.m_color.blue &&
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m_color.pixel == data.m_color.pixel);
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}
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void FreeColour();
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void AllocColour( WXColormap cmap );
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XColor m_color;
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WXColormap m_colormap;
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bool m_hasPixel;
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friend class wxColour;
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// reference counter for systems with <= 8-Bit display
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static unsigned short colMapAllocCounter[ 256 ];
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};
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unsigned short wxColourRefData::colMapAllocCounter[ 256 ] =
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{
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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};
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void wxColourRefData::FreeColour()
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{
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if (!m_colormap)
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return;
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#if !wxUSE_NANOX
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if ( wxTheApp &&
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(wxTheApp->m_visualInfo->m_visualType == GrayScale ||
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wxTheApp->m_visualInfo->m_visualType == PseudoColor) )
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{
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int idx = m_color.pixel;
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colMapAllocCounter[ idx ] = colMapAllocCounter[ idx ] - 1;
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if (colMapAllocCounter[ idx ] == 0)
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{
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unsigned long pixel = m_color.pixel;
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XFreeColors( wxGlobalDisplay(), (Colormap) m_colormap, &pixel, 1, 0 );
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}
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}
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#endif
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}
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void wxColourRefData::AllocColour( WXColormap cmap )
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{
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if (m_hasPixel && (m_colormap == cmap))
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return;
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FreeColour();
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#if !wxUSE_NANOX
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if ((wxTheApp->m_visualInfo->m_visualType == GrayScale) ||
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(wxTheApp->m_visualInfo->m_visualType == PseudoColor))
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{
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m_hasPixel = XAllocColor( wxGlobalDisplay(), (Colormap) cmap, &m_color );
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int idx = m_color.pixel;
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colMapAllocCounter[ idx ] = colMapAllocCounter[ idx ] + 1;
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}
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else
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#endif
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{
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m_hasPixel = XAllocColor( wxGlobalDisplay(), (Colormap) cmap, &m_color );
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}
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m_colormap = cmap;
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}
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//-----------------------------------------------------------------------------
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#define M_COLDATA ((wxColourRefData *)m_refData)
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#define SHIFT (8*(sizeof(short int)-sizeof(char)))
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wxColour::~wxColour()
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{
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}
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bool wxColour::operator == ( const wxColour& col ) const
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{
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if (m_refData == col.m_refData) return true;
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if (!m_refData || !col.m_refData) return false;
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XColor *own = &(((wxColourRefData*)m_refData)->m_color);
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XColor *other = &(((wxColourRefData*)col.m_refData)->m_color);
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return (own->red == other->red)
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&& (own->green == other->green)
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&& (own->blue == other->blue) ;
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}
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wxGDIRefData *wxColour::CreateGDIRefData() const
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{
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return new wxColourRefData;
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}
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wxGDIRefData *wxColour::CloneGDIRefData(const wxGDIRefData *data) const
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{
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return new wxColourRefData(*(wxColourRefData *)data);
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}
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void wxColour::InitRGBA(unsigned char red, unsigned char green, unsigned char blue,
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unsigned char WXUNUSED(alpha))
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{
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AllocExclusive();
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#if wxUSE_NANOX
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M_COLDATA->m_color.red = ((unsigned short)red) ;
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M_COLDATA->m_color.green = ((unsigned short)green) ;
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M_COLDATA->m_color.blue = ((unsigned short)blue) ;
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#else
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M_COLDATA->m_color.red = ((unsigned short)red) << SHIFT;
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M_COLDATA->m_color.green = ((unsigned short)green) << SHIFT;
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M_COLDATA->m_color.blue = ((unsigned short)blue) << SHIFT;
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#endif
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M_COLDATA->m_color.pixel = 0;
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}
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unsigned char wxColour::Red() const
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{
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wxCHECK_MSG( IsOk(), 0, wxT("invalid colour") );
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#if wxUSE_NANOX
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return (unsigned char) M_COLDATA->m_color.red ;
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#else
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return (unsigned char)(M_COLDATA->m_color.red >> SHIFT);
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#endif
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}
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unsigned char wxColour::Green() const
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{
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wxCHECK_MSG( IsOk(), 0, wxT("invalid colour") );
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#if wxUSE_NANOX
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return (unsigned char) M_COLDATA->m_color.green ;
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#else
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return (unsigned char)(M_COLDATA->m_color.green >> SHIFT);
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#endif
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}
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unsigned char wxColour::Blue() const
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{
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wxCHECK_MSG( IsOk(), 0, wxT("invalid colour") );
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#if wxUSE_NANOX
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return (unsigned char) M_COLDATA->m_color.blue ;
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#else
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return (unsigned char)(M_COLDATA->m_color.blue >> SHIFT);
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#endif
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}
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void wxColour::CalcPixel( WXColormap cmap )
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{
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wxCHECK_RET( IsOk(), wxT("invalid colour") );
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wxCHECK_RET( cmap, wxT("invalid colormap") );
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M_COLDATA->AllocColour( cmap );
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}
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unsigned long wxColour::GetPixel() const
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{
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wxCHECK_MSG( IsOk(), 0, wxT("invalid colour") );
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return M_COLDATA->m_color.pixel;
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}
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WXColor *wxColour::GetColor() const
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{
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wxCHECK_MSG( IsOk(), NULL, wxT("invalid colour") );
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return (WXColor*) &M_COLDATA->m_color;
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}
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bool wxColour::FromString(const wxString& name)
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{
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Display *dpy = wxGlobalDisplay();
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WXColormap colormap = wxTheApp->GetMainColormap( dpy );
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XColor xcol;
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if ( XParseColor( dpy, (Colormap)colormap, name.mbc_str(), &xcol ) )
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{
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UnRef();
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m_refData = new wxColourRefData;
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M_COLDATA->m_colormap = colormap;
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M_COLDATA->m_color = xcol;
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return true;
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}
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return wxColourBase::FromString(name);
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}
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