No change

[wxWidgets.git] / src / gtk / colour.cpp

diff --git a/src/gtk/colour.cpp b/src/gtk/colour.cpp
index 4ce15385f763b66c2a5bccd84f6bd8d8219a95fa..1b82a30b01a39f2cfce2d81c7b5ea25b7aa70792 100644 (file)
--- a/src/gtk/colour.cpp
+++ b/src/gtk/colour.cpp
@@ -25,33 +25,67 @@
 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)
+    {
+        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()
-{
-    FreeColour();
-}
+gushort wxColourRefData::colMapAllocCounter[ 256 ] = 
+{  
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 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()
 {
@@ -66,13 +100,42 @@ void wxColourRefData::FreeColour()
             (private_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR))
 #endif
         {
-            // What happens if the colour has not been allocated
-            // anew but has been found? RR.
+            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();
+    
+#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)
@@ -81,10 +144,6 @@ void wxColourRefData::FreeColour()
 
 IMPLEMENT_DYNAMIC_CLASS(wxColour,wxGDIObject)
 
-wxColour::wxColour()
-{
-}
-
 wxColour::wxColour( unsigned char red, unsigned char green, unsigned char blue )
 {
     m_refData = new wxColourRefData();
@@ -106,6 +165,7 @@ void wxColour::InitFromName( const wxString &colourName )
     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
@@ -123,28 +183,15 @@ void wxColour::InitFromName( const wxString &colourName )
     }
 }
 
-wxColour::wxColour( const wxColour& col )
-{
-    Ref( col );
-}
-
 wxColour::~wxColour()
 {
 }
 
-wxColour& wxColour::operator = ( const wxColour& col )
-{
-    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) 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);
@@ -155,14 +202,20 @@ bool wxColour::operator == ( const wxColour& col ) const
     return TRUE;
 }
 
-bool wxColour::operator != ( const wxColour& col) const
+wxObjectRefData *wxColour::CreateRefData() const
+{
+    return new wxColourRefData;
+}
+
+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();
+    AllocExclusive();
+    
     m_refData = new wxColourRefData();
     M_COLDATA->m_color.red = ((unsigned short)red) << SHIFT;
     M_COLDATA->m_color.green = ((unsigned short)green) << SHIFT;
@@ -191,36 +244,11 @@ unsigned char wxColour::Blue() 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