bug fix for using multiline string (i.e. with embedded '\n's) in wxTextCtrl ctor

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

diff --git a/src/gtk/colour.cpp b/src/gtk/colour.cpp
index 51fde80c114a5e9e1743c5170f3a5764fd1b57d0..9ac38bff4b5822e4d2410677ece6a46eea99ed84 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 +24,39 @@
 
 class wxColourRefData: public wxObjectRefData
 {
-  public:
-
+public:
     wxColourRefData();
     ~wxColourRefData();
+
     void FreeColour();
+    void AllocColour( GdkColormap* cmap );
 
+public:
     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 ];
+};
+
+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()
@@ -53,7 +76,51 @@ 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
+        {
+            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 ((m_colormap->visual->type == GDK_VISUAL_GRAYSCALE) ||
+       (m_colormap->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;
 }
 
 //-----------------------------------------------------------------------------
@@ -91,9 +158,15 @@ void wxColour::InitFromName( const wxString &colourName )
         m_refData = new wxColourRefData();
         if (!gdk_color_parse( colourName.mb_str(), &M_COLDATA->m_color ))
         {
-            wxFAIL_MSG( _T("wxColour: couldn't find colour") );
-           wxPrintf( _T("Colourname %s.\n"), WXSTRINGCAST colourName );
-      
+            // 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;
         }
@@ -119,22 +192,22 @@ wxColour& wxColour::operator = ( const wxColour& col )
 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;
-    
+
     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) const
 {
-    return m_refData != col.m_refData;
+    return !(*this == col);
 }
 
 void wxColour::Set( unsigned char red, unsigned char green, unsigned char blue )
@@ -149,21 +222,21 @@ void wxColour::Set( unsigned char red, unsigned char green, unsigned char blue )
 
 unsigned char wxColour::Red() const
 {
-    wxCHECK_MSG( Ok(), 0, _T("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, _T("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, _T("invalid colour") );
+    wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
 
     return (unsigned char)(M_COLDATA->m_color.blue >> SHIFT);
 }
@@ -177,48 +250,19 @@ void wxColour::CalcPixel( GdkColormap *cmap )
 {
     if (!Ok()) return;
 
-    if ((M_COLDATA->m_hasPixel) && (M_COLDATA->m_colormap == cmap)) return;
-    
-    M_COLDATA->FreeColour();
-
-    GdkColormapPrivate *private_colormap = (GdkColormapPrivate*) cmap;
-    if ((private_colormap->visual->type == GDK_VISUAL_GRAYSCALE) ||
-        (private_colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR))
-    {
-        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
 {
-    wxCHECK_MSG( Ok(), 0, _T("invalid colour") );
+    wxCHECK_MSG( Ok(), 0, wxT("invalid colour") );
 
     return M_COLDATA->m_color.pixel;
 }
 
 GdkColor *wxColour::GetColor() const
 {
-    wxCHECK_MSG( Ok(), (GdkColor *) NULL, _T("invalid colour") );
+    wxCHECK_MSG( Ok(), (GdkColor *) NULL, wxT("invalid colour") );
 
     return &M_COLDATA->m_color;
 }