// Name: colour.cpp
// Purpose:
// Author: Robert Roebling
-// Created: 01/02/97
-// Id:
-// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
-// Licence: wxWindows licence
+// Id: $Id$
+// Copyright: (c) 1998 Robert Roebling
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "colour.h"
#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
#include "wx/gdicmn.h"
+#include "wx/colour.h"
+#include "wx/gtk/private.h"
-#ifdef USE_GDK_IMLIB
-#include "gdk_imlib.h"
-#endif
+#include <gdk/gdk.h>
+#include <gdk/gdkx.h>
+#include <gdk/gdkprivate.h>
//-----------------------------------------------------------------------------
// wxColour
class wxColourRefData: public wxObjectRefData
{
- public:
-
- wxColourRefData(void);
- ~wxColourRefData(void);
- void FreeColour(void);
-
+public:
+ wxColourRefData()
+ {
+ m_color.red = 0;
+ m_color.green = 0;
+ m_color.blue = 0;
+ m_color.pixel = 0;
+ m_colormap = (GdkColormap *) NULL;
+ m_hasPixel = false;
+ }
+
+ wxColourRefData(const wxColourRefData& data)
+ : wxObjectRefData()
+ {
+ m_color = data.m_color;
+ m_colormap = data.m_colormap;
+ m_hasPixel = data.m_hasPixel;
+ }
+
+ ~wxColourRefData()
+ {
+ FreeColour();
+ }
+
+ bool operator == (const wxColourRefData& data) const
+ {
+ return (m_colormap == data.m_colormap &&
+ m_hasPixel == data.m_hasPixel &&
+ m_color.red == data.m_color.red &&
+ m_color.green == data.m_color.green &&
+ m_color.blue == data.m_color.blue &&
+ m_color.pixel == data.m_color.pixel);
+ }
+
+ void FreeColour();
+ void AllocColour( GdkColormap* cmap );
+
GdkColor m_color;
GdkColormap *m_colormap;
bool m_hasPixel;
-
- friend wxColour;
+
+ friend class wxColour;
+
+ // reference counter for systems with <= 8-Bit display
+ static gushort colMapAllocCounter[ 256 ];
};
-wxColourRefData::wxColourRefData(void)
+gushort wxColourRefData::colMapAllocCounter[ 256 ] =
{
- m_color.red = 0;
- m_color.green = 0;
- m_color.blue = 0;
- m_color.pixel = 0;
- m_colormap = NULL;
- m_hasPixel = FALSE;
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
-wxColourRefData::~wxColourRefData(void)
+void wxColourRefData::FreeColour()
{
- FreeColour();
-};
+ if (m_colormap)
+ {
+#ifdef __WXGTK20__
+ if ((m_colormap->visual->type == GDK_VISUAL_GRAYSCALE) ||
+ (m_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR))
+#else
+ GdkColormapPrivate *private_colormap = (GdkColormapPrivate*) m_colormap;
+ if ((private_colormap->visual->type == GDK_VISUAL_GRAYSCALE) ||
+ (private_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR))
+#endif
+ {
+ int idx = m_color.pixel;
+ colMapAllocCounter[ idx ] = colMapAllocCounter[ idx ] - 1;
+
+ if (colMapAllocCounter[ idx ] == 0)
+ gdk_colormap_free_colors( m_colormap, &m_color, 1 );
+ }
+ }
+}
-void wxColourRefData::FreeColour(void)
+void wxColourRefData::AllocColour( GdkColormap *cmap )
{
-// if (m_hasPixel) gdk_colors_free( m_colormap, &m_color, 1, 0 );
-};
+ if (m_hasPixel && (m_colormap == cmap))
+ return;
+
+ FreeColour();
+
+#ifdef __WXGTK20__
+ if ( (cmap->visual->type == GDK_VISUAL_GRAYSCALE) ||
+ (cmap->visual->type == GDK_VISUAL_PSEUDO_COLOR) )
+#else
+ GdkColormapPrivate *private_colormap = (GdkColormapPrivate*) cmap;
+ if ((private_colormap->visual->type == GDK_VISUAL_GRAYSCALE) ||
+ (private_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR))
+#endif
+ {
+ m_hasPixel = gdk_colormap_alloc_color( cmap, &m_color, FALSE, TRUE );
+ int idx = m_color.pixel;
+ colMapAllocCounter[ idx ] = colMapAllocCounter[ idx ] + 1;
+ }
+ else
+ {
+ m_hasPixel = gdk_color_alloc( cmap, &m_color );
+ }
+ m_colormap = cmap;
+}
//-----------------------------------------------------------------------------
#define M_COLDATA ((wxColourRefData *)m_refData)
-#define SHIFT (8*(sizeof(short int)-sizeof(char)))
+// GDK's values are in 0..65535 range, our are in 0..255
+#define SHIFT 8
IMPLEMENT_DYNAMIC_CLASS(wxColour,wxGDIObject)
-wxColour::wxColour(void)
-{
-};
-
-wxColour::wxColour( char red, char green, char blue )
+wxColour::wxColour( unsigned char red, unsigned char green, unsigned char blue )
{
- m_refData = new wxColourRefData();
- M_COLDATA->m_color.red = ((unsigned short)red) << SHIFT;
- M_COLDATA->m_color.green = ((unsigned short)green) << SHIFT;
- M_COLDATA->m_color.blue = ((unsigned short)blue) << SHIFT;
- M_COLDATA->m_color.pixel = 0;
-};
-
-wxColour::wxColour( const wxString &colourName )
-{
- wxNode *node = NULL;
- if ( (wxTheColourDatabase) && (node = wxTheColourDatabase->Find(colourName)) )
- {
- wxColour *col = (wxColour*)node->Data();
- UnRef();
- if (col) Ref( *col );
- }
- else
- {
m_refData = new wxColourRefData();
- if (!gdk_color_parse( colourName, &M_COLDATA->m_color ))
+ M_COLDATA->m_color.red = ((unsigned short)red) << SHIFT;
+ M_COLDATA->m_color.green = ((unsigned short)green) << SHIFT;
+ M_COLDATA->m_color.blue = ((unsigned short)blue) << SHIFT;
+ M_COLDATA->m_color.pixel = 0;
+}
+
+/* static */
+wxColour wxColour::CreateByName(const wxString& name)
+{
+ wxColour col;
+
+ GdkColor colGDK;
+ if ( gdk_color_parse( wxGTK_CONV( name ), &colGDK ) )
{
- delete m_refData;
- m_refData = NULL;
- };
- };
-};
+ wxColourRefData *refData = new wxColourRefData;
+ refData->m_color = colGDK;
+ col.m_refData = refData;
+ }
-wxColour::wxColour( const wxColour& col )
-{
- Ref( col );
-};
+ return col;
+}
-wxColour::wxColour( const wxColour* col )
-{
- if (col) Ref( *col );
-};
-wxColour::~wxColour(void)
+void wxColour::InitFromName( const wxString &colourName )
{
-};
+ // check the cache first
+ wxColour col;
+ if ( wxTheColourDatabase )
+ {
+ col = wxTheColourDatabase->Find(colourName);
+ }
-wxColour& wxColour::operator = ( const wxColour& col )
-{
- if (*this == col) return (*this);
- Ref( col );
- return *this;
-};
+ if ( !col.Ok() )
+ {
+ col = CreateByName(colourName);
+ }
-wxColour& wxColour::operator = ( const wxString& colourName )
-{
- UnRef();
- wxNode *node = NULL;
- if ((wxTheColourDatabase) && (node = wxTheColourDatabase->Find(colourName)) )
- {
- wxColour *col = (wxColour*)node->Data();
- if (col) Ref( *col );
- }
- else
- {
- m_refData = new wxColourRefData();
- if (!gdk_color_parse( colourName, &M_COLDATA->m_color ))
+ if ( col.Ok() )
{
- delete m_refData;
- m_refData = NULL;
- };
- };
- return *this;
-};
+ *this = col;
+ }
+ else
+ {
+ wxFAIL_MSG( wxT("wxColour: couldn't find colour") );
+ }
+}
-bool wxColour::operator == ( const wxColour& col )
-{
- return m_refData == col.m_refData;
-};
+wxColour::~wxColour()
+{
+}
-bool wxColour::operator != ( const wxColour& col)
-{
- return m_refData != col.m_refData;
-};
+bool wxColour::operator == ( const wxColour& col ) const
+{
+ if (m_refData == col.m_refData)
+ return true;
+
+ if (!m_refData || !col.m_refData)
+ return false;
-void wxColour::Set( const unsigned char red, const unsigned char green, const unsigned char blue )
+ GdkColor *own = &(((wxColourRefData*)m_refData)->m_color);
+ GdkColor *other = &(((wxColourRefData*)col.m_refData)->m_color);
+ return own->red == other->red &&
+ own->blue == other->blue &&
+ own->green == other->green;
+}
+
+wxObjectRefData *wxColour::CreateRefData() const
{
- UnRef();
- m_refData = new wxColourRefData();
- M_COLDATA->m_color.red = ((unsigned short)red) << SHIFT;
- M_COLDATA->m_color.green = ((unsigned short)green) << SHIFT;
- M_COLDATA->m_color.blue = ((unsigned short)blue) << SHIFT;
- M_COLDATA->m_color.pixel = 0;
-};
+ return new wxColourRefData;
+}
-unsigned char wxColour::Red(void) const
+wxObjectRefData *wxColour::CloneRefData(const wxObjectRefData *data) const
{
- if (!Ok()) return 0;
- return (unsigned char)(M_COLDATA->m_color.red >> SHIFT);
-};
+ return new wxColourRefData(*(wxColourRefData *)data);
+}
-unsigned char wxColour::Green(void) const
+void wxColour::Set( unsigned char red, unsigned char green, unsigned char blue )
{
- if (!Ok()) return 0;
- return (unsigned char)(M_COLDATA->m_color.green >> SHIFT);
-};
+ AllocExclusive();
-unsigned char wxColour::Blue(void) const
+ M_COLDATA->m_color.red = ((unsigned short)red) << SHIFT;
+ M_COLDATA->m_color.green = ((unsigned short)green) << SHIFT;
+ M_COLDATA->m_color.blue = ((unsigned short)blue) << SHIFT;
+ M_COLDATA->m_color.pixel = 0;
+
+ M_COLDATA->m_colormap = (GdkColormap*) NULL;
+ M_COLDATA->m_hasPixel = false;
+}
+
+unsigned char wxColour::Red() const
{
- if (!Ok()) return 0;
- return (unsigned char)(M_COLDATA->m_color.blue >> SHIFT);
-};
+ wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
+
+ return (unsigned char)(M_COLDATA->m_color.red >> SHIFT);
+}
-bool wxColour::Ok(void) const
+unsigned char wxColour::Green() const
{
- return (m_refData);
-};
+ wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
-void wxColour::CalcPixel( GdkColormap *cmap )
+ return (unsigned char)(M_COLDATA->m_color.green >> SHIFT);
+}
+
+unsigned char wxColour::Blue() const
{
- if (!Ok()) return;
-
- if ((M_COLDATA->m_hasPixel) && (M_COLDATA->m_colormap == cmap)) return;
- M_COLDATA->FreeColour();
-
-#ifdef USE_GDK_IMLIB
+ wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
- int r = M_COLDATA->m_color.red >> SHIFT;
- int g = M_COLDATA->m_color.green >> SHIFT;
- int b = M_COLDATA->m_color.blue >> SHIFT;
- M_COLDATA->m_hasPixel = TRUE;
- M_COLDATA->m_color.pixel = gdk_imlib_best_color_match( &r, &g, &b );
+ return (unsigned char)(M_COLDATA->m_color.blue >> SHIFT);
+}
-#else
+void wxColour::CalcPixel( GdkColormap *cmap )
+{
+ if (!Ok()) return;
- M_COLDATA->m_hasPixel = gdk_color_alloc( cmap, &M_COLDATA->m_color );
-
-#endif
-
- M_COLDATA->m_colormap = cmap;
-};
+ M_COLDATA->AllocColour( cmap );
+}
-int wxColour::GetPixel(void)
+int wxColour::GetPixel() const
{
- if (!Ok()) return 0;
-
- return M_COLDATA->m_color.pixel;
-};
+ wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
+
+ return M_COLDATA->m_color.pixel;
+}
-GdkColor *wxColour::GetColor(void)
+GdkColor *wxColour::GetColor() const
{
- if (!Ok()) return NULL;
-
- return &M_COLDATA->m_color;
-};
+ wxCHECK_MSG( Ok(), (GdkColor *) NULL, wxT("invalid colour") );
+
+ return &M_COLDATA->m_color;
+}
projects / wxWidgets.git / blobdiff