Changed code to get rid of a compiler warning about statement always being FALSE

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

diff --git a/src/gtk/colour.cpp b/src/gtk/colour.cpp
index 88a76bba564dc470c4a8969acfa77d8bbc0b9a47..a54ca5fdac5109e3721a738e5ee42e117d4f1353 100644 (file)
--- a/src/gtk/colour.cpp
+++ b/src/gtk/colour.cpp
@@ -14,8 +14,9 @@
 
 #include "wx/gdicmn.h"
 
-#include "gdk/gdk.h"
-#include "gdk/gdkprivate.h"
+#include <gdk/gdk.h>
+#include <gdk/gdkx.h>
+#include <gdk/gdkprivate.h>
 
 //-----------------------------------------------------------------------------
 // wxColour
@@ -23,17 +24,18 @@
 
 class wxColourRefData: public wxObjectRefData
 {
-  public:
-
+public:
     wxColourRefData();
     ~wxColourRefData();
+    
     void FreeColour();
 
+public:
     GdkColor     m_color;
     GdkColormap *m_colormap;
     bool         m_hasPixel;
 
-    friend wxColour;
+    friend class wxColour;
 };
 
 wxColourRefData::wxColourRefData()
@@ -53,7 +55,22 @@ wxColourRefData::~wxColourRefData()
 
 void wxColourRefData::FreeColour()
 {
-//  if (m_hasPixel) gdk_colors_free( m_colormap, &m_color, 1, 0 );
+    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 );
+        }
+    }
 }
 
 //-----------------------------------------------------------------------------
@@ -89,10 +106,9 @@ void wxColour::InitFromName( const wxString &colourName )
     else
     {
         m_refData = new wxColourRefData();
-        if (!gdk_color_parse( colourName, &M_COLDATA->m_color ))
+        if (!gdk_color_parse( colourName.mb_str(), &M_COLDATA->m_color ))
         {
-            wxFAIL_MSG( "wxColour: couldn't find colour" );
-           printf( "Colourname %s.\n", WXSTRINGCAST colourName );
+            wxFAIL_MSG( wxT("wxColour: couldn't find colour") );
       
             delete m_refData;
             m_refData = (wxObjectRefData *) NULL;
@@ -116,14 +132,25 @@ wxColour& wxColour::operator = ( const wxColour& col )
     return *this;
 }
 
-bool wxColour::operator == ( const wxColour& col )
+bool wxColour::operator == ( const wxColour& col ) const
 {
-    return m_refData == col.m_refData;
+    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;
 }
 
-bool wxColour::operator != ( const wxColour& col)
+bool wxColour::operator != ( const wxColour& col) const
 {
-    return m_refData != col.m_refData;
+    return !(*this == col);
 }
 
 void wxColour::Set( unsigned char red, unsigned char green, unsigned char blue )
@@ -138,21 +165,21 @@ void wxColour::Set( unsigned char red, unsigned char green, unsigned char blue )
 
 unsigned char wxColour::Red() const
 {
-    wxCHECK_MSG( Ok(), 0, "invalid colour" );
+    wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
 
     return (unsigned char)(M_COLDATA->m_color.red >> SHIFT);
 }
 
 unsigned char wxColour::Green() const
 {
-    wxCHECK_MSG( Ok(), 0, "invalid colour" );
+    wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
 
     return (unsigned char)(M_COLDATA->m_color.green >> SHIFT);
 }
 
 unsigned char wxColour::Blue() const
 {
-    wxCHECK_MSG( Ok(), 0, "invalid colour" );
+    wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
 
     return (unsigned char)(M_COLDATA->m_color.blue >> SHIFT);
 }
@@ -170,25 +197,16 @@ void wxColour::CalcPixel( GdkColormap *cmap )
     
     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;
+        M_COLDATA->m_hasPixel = gdk_colormap_alloc_color( cmap, &M_COLDATA->m_color, FALSE, TRUE );
     }
     else
     { 
@@ -200,14 +218,14 @@ void wxColour::CalcPixel( GdkColormap *cmap )
 
 int wxColour::GetPixel() const
 {
-    wxCHECK_MSG( Ok(), 0, "invalid colour" );
+    wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
 
     return M_COLDATA->m_color.pixel;
 }
 
 GdkColor *wxColour::GetColor() const
 {
-    wxCHECK_MSG( Ok(), (GdkColor *) NULL, "invalid colour" );
+    wxCHECK_MSG( Ok(), (GdkColor *) NULL, wxT("invalid colour") );
 
     return &M_COLDATA->m_color;
 }