X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/307fc8d5821e4dcffd7f2975ce62791c5f37982d..55325d01e68cfb071e42699ca72ba84a7071aa2b:/src/gtk1/colour.cpp

diff --git a/src/gtk1/colour.cpp b/src/gtk1/colour.cpp
index 60e62c4b3a..39dcf5e3bd 100644
--- a/src/gtk1/colour.cpp
+++ b/src/gtk1/colour.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        colour.cpp
+// Name:        src/gtk1/colour.cpp
 // Purpose:
 // Author:      Robert Roebling
 // Id:          $Id$
@@ -7,12 +7,13 @@
 // 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/gtk1/private.h"
 
 #include <gdk/gdk.h>
 #include <gdk/gdkx.h>
@@ -24,127 +25,158 @@
 
 class wxColourRefData: public wxObjectRefData
 {
-  public:
+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);
+    }
 
-    wxColourRefData();
-    ~wxColourRefData();
     void FreeColour();
+    void AllocColour( GdkColormap* cmap );
 
     GdkColor     m_color;
     GdkColormap *m_colormap;
     bool         m_hasPixel;
 
     friend class wxColour;
+
+    // reference counter for systems with <= 8-Bit display
+    static gushort colMapAllocCounter[ 256 ];
+};
+
+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
 };
 
-wxColourRefData::wxColourRefData()
+void wxColourRefData::FreeColour()
 {
-    m_color.red = 0;
-    m_color.green = 0;
-    m_color.blue = 0;
-    m_color.pixel = 0;
-    m_colormap = (GdkColormap *) NULL;
-    m_hasPixel = FALSE;
+    if (m_colormap)
+    {
+        GdkColormapPrivate *private_colormap = (GdkColormapPrivate*) m_colormap;
+        if ((private_colormap->visual->type == GDK_VISUAL_GRAYSCALE) ||
+            (private_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR))
+        {
+            int idx = m_color.pixel;
+            colMapAllocCounter[ idx ] = colMapAllocCounter[ idx ] - 1;
+
+            if (colMapAllocCounter[ idx ] == 0)
+                gdk_colormap_free_colors( m_colormap, &m_color, 1 );
+        }
+    }
 }
 
-wxColourRefData::~wxColourRefData()
+void wxColourRefData::AllocColour( GdkColormap *cmap )
 {
+    if (m_hasPixel && (m_colormap == cmap))
+        return;
+
     FreeColour();
-}
 
-void wxColourRefData::FreeColour()
-{
-//  if (m_hasPixel) gdk_colors_free( m_colormap, &m_color, 1, 0 );
+    GdkColormapPrivate *private_colormap = (GdkColormapPrivate*) cmap;
+    if ((private_colormap->visual->type == GDK_VISUAL_GRAYSCALE) ||
+        (private_colormap->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 )
+wxColour::~wxColour()
 {
-    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;
 }
 
-void wxColour::InitFromName( const wxString &colourName )
+bool wxColour::operator == ( const wxColour& col ) const
 {
-    wxNode *node = (wxNode *) 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.mb_str(), &M_COLDATA->m_color ))
-        {
-            wxFAIL_MSG( wxT("wxColour: couldn't find colour") );
-      
-            delete m_refData;
-            m_refData = (wxObjectRefData *) NULL;
-        }
-    }
-}
+    if (m_refData == col.m_refData)
+        return true;
 
-wxColour::wxColour( const wxColour& col )
-{
-    Ref( col );
-}
+    if (!m_refData || !col.m_refData)
+        return false;
 
-wxColour::~wxColour()
-{
+    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;
 }
 
-wxColour& wxColour::operator = ( const wxColour& col )
+wxObjectRefData *wxColour::CreateRefData() const
 {
-    if (*this == col) return (*this);
-    Ref( col );
-    return *this;
+    return new wxColourRefData;
 }
 
-bool wxColour::operator == ( const wxColour& col ) const
+wxObjectRefData *wxColour::CloneRefData(const wxObjectRefData *data) const
 {
-    if (m_refData == col.m_refData) return TRUE;
-    
-    if (!m_refData) return FALSE;
-    if (!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 TRUE;
+    return new wxColourRefData(*(wxColourRefData *)data);
 }
 
-bool wxColour::operator != ( const wxColour& col) const
+void wxColour::InitWith( unsigned char red, unsigned char green, unsigned char blue )
 {
-    return !(*this == col);
-}
+    AllocExclusive();
 
-void wxColour::Set( unsigned char red, unsigned char green, unsigned char blue )
-{
-    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;
+
+    M_COLDATA->m_colormap = (GdkColormap*) NULL;
+    M_COLDATA->m_hasPixel = false;
 }
 
 unsigned char wxColour::Red() const
@@ -168,50 +200,11 @@ 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
-    {
-        GdkColor *colors = cmap->colors;
-        int max = 3 * (65536);
-        int index = -1;
-
-        for (int i = 0; i < cmap->size; i++)
-        {
-            int rdiff = (M_COLDATA->m_color.red - colors[i].red);
-            int gdiff = (M_COLDATA->m_color.green - colors[i].green);
-            int bdiff = (M_COLDATA->m_color.blue - colors[i].blue);
-            int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
-            if (sum < max) { index = i; max = sum; }
-        }
-
-        M_COLDATA->m_hasPixel = TRUE;
-        M_COLDATA->m_color.pixel = index;
-    }
-    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
@@ -228,4 +221,17 @@ GdkColor *wxColour::GetColor() const
     return &M_COLDATA->m_color;
 }
 
+bool wxColour::FromString(const wxChar *str)
+{
+    GdkColor colGDK;
+    if ( gdk_color_parse( str, &colGDK ) )
+    {
+        UnRef();
+
+        m_refData = new wxColourRefData;
+        M_COLDATA->m_color = colGDK;
+        return true;
+    }
 
+    return wxColourBase::FromString(str);
+}