/////////////////////////////////////////////////////////////////////////////
-// Name: colour.cpp
+// Name: src/gtk/colour.cpp
// Purpose:
// Author: Robert Roebling
// Id: $Id$
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
-#ifdef __GNUG__
-#pragma implementation "colour.h"
-#endif
-
+#include "wx/colour.h"
#include "wx/gdicmn.h"
+#include "wx/gtk/private.h"
#include <gdk/gdk.h>
#include <gdk/gdkx.h>
class wxColourRefData: public wxObjectRefData
{
public:
- wxColourRefData();
- ~wxColourRefData();
+ 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 );
-public:
GdkColor m_color;
GdkColormap *m_colormap;
bool m_hasPixel;
friend class wxColour;
-};
-wxColourRefData::wxColourRefData()
-{
- m_color.red = 0;
- m_color.green = 0;
- m_color.blue = 0;
- m_color.pixel = 0;
- m_colormap = (GdkColormap *) NULL;
- m_hasPixel = FALSE;
-}
+ // reference counter for systems with <= 8-Bit display
+ static gushort colMapAllocCounter[ 256 ];
+};
-wxColourRefData::~wxColourRefData()
+gushort wxColourRefData::colMapAllocCounter[ 256 ] =
{
- FreeColour();
-}
+ 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
+};
void wxColourRefData::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
{
- // What happens if the colour has not been allocated
- // anew but has been found? RR.
- gdk_colormap_free_colors( m_colormap, &m_color, 1 );
+ 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::AllocColour( GdkColormap *cmap )
+{
+ if (m_hasPixel && (m_colormap == cmap))
+ return;
+
+ FreeColour();
+
+ if ( (cmap->visual->type == GDK_VISUAL_GRAYSCALE) ||
+ (cmap->visual->type == GDK_VISUAL_PSEUDO_COLOR) )
+ {
+ 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()
-{
-}
-
wxColour::wxColour( unsigned char red, unsigned char green, unsigned char blue )
{
m_refData = new wxColourRefData();
M_COLDATA->m_color.pixel = 0;
}
-void wxColour::InitFromName( const wxString &colourName )
+/* static */
+wxColour wxColour::CreateByName(const wxString& name)
{
- wxNode *node = (wxNode *) NULL;
- if ( (wxTheColourDatabase) && (node = wxTheColourDatabase->Find(colourName)) )
+ wxColour col;
+
+ GdkColor colGDK;
+ if ( gdk_color_parse( wxGTK_CONV( name ), &colGDK ) )
{
- wxColour *col = (wxColour*)node->Data();
- UnRef();
- if (col) Ref( *col );
+ wxColourRefData *refData = new wxColourRefData;
+ refData->m_color = colGDK;
+ col.m_refData = refData;
}
- else
- {
- m_refData = new wxColourRefData();
- if (!gdk_color_parse( colourName.mb_str(), &M_COLDATA->m_color ))
- {
- // VZ: asserts are good in general but this one is triggered by
- // calling wxColourDatabase::FindColour() with an
- // unrecognized colour name and this can't be avoided from the
- // user code, so don't give it here
- //
- // a better solution would be to changed code in FindColour()
-
- //wxFAIL_MSG( wxT("wxColour: couldn't find colour") );
- delete m_refData;
- m_refData = (wxObjectRefData *) NULL;
- }
- }
+ return col;
}
-wxColour::wxColour( const wxColour& col )
-{
- Ref( col );
-}
-wxColour::~wxColour()
+void wxColour::InitFromName( const wxString &colourName )
{
+ // check the cache first
+ wxColour col;
+ if ( wxTheColourDatabase )
+ {
+ col = wxTheColourDatabase->Find(colourName);
+ }
+
+ if ( !col.Ok() )
+ {
+ col = CreateByName(colourName);
+ }
+
+ if ( col.Ok() )
+ {
+ *this = col;
+ }
+ else
+ {
+ wxFAIL_MSG( wxT("wxColour: couldn't find colour") );
+ }
}
-wxColour& wxColour::operator = ( const wxColour& col )
+wxColour::~wxColour()
{
- if (*this == col) return (*this);
- Ref( col );
- return *this;
}
bool wxColour::operator == ( const wxColour& col ) const
{
- if (m_refData == col.m_refData) return TRUE;
+ if (m_refData == col.m_refData)
+ return true;
- if (!m_refData) return FALSE;
- if (!col.m_refData) return FALSE;
+ if (!m_refData || !col.m_refData)
+ return false;
GdkColor *own = &(((wxColourRefData*)m_refData)->m_color);
GdkColor *other = &(((wxColourRefData*)col.m_refData)->m_color);
- if (own->red != other->red) return FALSE;
- if (own->blue != other->blue) return FALSE;
- if (own->green != other->green) return FALSE;
+ return own->red == other->red &&
+ own->blue == other->blue &&
+ own->green == other->green;
+}
- return TRUE;
+wxObjectRefData *wxColour::CreateRefData() const
+{
+ return new wxColourRefData;
}
-bool wxColour::operator != ( const wxColour& col) const
+wxObjectRefData *wxColour::CloneRefData(const wxObjectRefData *data) const
{
- return !(*this == col);
+ return new wxColourRefData(*(wxColourRefData *)data);
}
void wxColour::Set( unsigned char red, unsigned char green, unsigned char blue )
{
- UnRef();
- m_refData = new wxColourRefData();
+ AllocExclusive();
+
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
return (unsigned char)(M_COLDATA->m_color.blue >> SHIFT);
}
-bool wxColour::Ok() const
-{
- return (m_refData != NULL);
-}
-
void wxColour::CalcPixel( GdkColormap *cmap )
{
if (!Ok()) return;
- if ((M_COLDATA->m_hasPixel) && (M_COLDATA->m_colormap == cmap)) return;
-
- M_COLDATA->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_COLDATA->m_hasPixel = gdk_colormap_alloc_color( cmap, &M_COLDATA->m_color, FALSE, TRUE );
- }
- else
- {
- M_COLDATA->m_hasPixel = gdk_color_alloc( cmap, &M_COLDATA->m_color );
- }
-
- M_COLDATA->m_colormap = cmap;
+ M_COLDATA->AllocColour( cmap );
}
int wxColour::GetPixel() const
return &M_COLDATA->m_color;
}
-
-
projects / wxWidgets.git / blobdiff