Add SetBackgroundColor() stubs.

Add signals/methods from tracking realization.

widget/src/gtk/nsWidget.cpp

@@ -25,11 +25,8 @@
 #include "nsIFontMetrics.h"
 #include <gdk/gdkx.h>
 
-// BGR, not RGB
-#define NSCOLOR_TO_GDKCOLOR(g,n) \
-  g.red=NS_GET_B(n); \
-  g.green=NS_GET_G(n); \
-  g.blue=NS_GET_R(n);
+// Taken from nsRenderingContextGTK.cpp
+#define NS_TO_GDK_RGB(ns) (ns & 0xff) << 16 | (ns & 0xff00) | ((ns >> 16) & 0xff)
 
 static NS_DEFINE_IID(kILookAndFeelIID, NS_ILOOKANDFEEL_IID);
 static NS_DEFINE_IID(kLookAndFeelCID, NS_LOOKANDFEEL_CID);
@@ -411,6 +408,18 @@ NS_METHOD nsWidget::SetFont(const nsFont &aFont)
   return NS_OK;
 }
 
+//-------------------------------------------------------------------------
+//
+// Set the background color
+//
+//-------------------------------------------------------------------------
+NS_METHOD nsWidget::SetBackgroundColor(const nscolor &aColor)
+{
+  nsBaseWidget::SetBackgroundColor(aColor);
+
+  return NS_OK;
+}
+
 //-------------------------------------------------------------------------
 //
 // Set this component cursor
@@ -792,7 +801,6 @@ NS_METHOD nsWidget::Create(nsNativeWidget aParent,
 //-------------------------------------------------------------------------
 void nsWidget::InitCallbacks(char *aName)
 {
-
 #if 0
 /* basically we are keeping the parent from getting the childs signals by
  * doing this. */
@@ -1072,6 +1080,16 @@ nsWidget::InstallButtonReleaseSignal(GtkWidget * aWidget)
 				GTK_SIGNAL_FUNC(nsWidget::ButtonReleaseSignal));
 }
 //////////////////////////////////////////////////////////////////
+void 
+nsWidget::InstallRealizeSignal(GtkWidget * aWidget)
+{
+  NS_ASSERTION( nsnull != aWidget, "widget is null");
+  
+  InstallSignal(aWidget,
+				"realize",
+				GTK_SIGNAL_FUNC(nsWidget::RealizeSignal));
+}
+//////////////////////////////////////////////////////////////////
 
 //////////////////////////////////////////////////////////////////
 //
@@ -1268,6 +1286,12 @@ nsWidget::OnButtonReleaseSignal(GdkEventButton * aGdkButtonEvent)
   Release();
 }
 //////////////////////////////////////////////////////////////////////
+/* virtual */ void
+nsWidget::OnRealize()
+{
+  printf("nsWidget::OnRealize(%p)\n",this);
+}
+//////////////////////////////////////////////////////////////////////
 
 
 //////////////////////////////////////////////////////////////////
@@ -1499,3 +1523,40 @@ nsWidget::ButtonReleaseSignal(GtkWidget *      aWidget,
   return PR_TRUE;
 }
 //////////////////////////////////////////////////////////////////////
+/* static */ gint 
+nsWidget::RealizeSignal(GtkWidget *      aWidget,
+                        gpointer         aData)
+{
+  printf("nsWidget::RealizeSignal(%p)\n",aData);
+  
+  NS_ASSERTION( nsnull != aWidget, "widget is null");
+  
+  nsWidget * widget = (nsWidget *) aData;
+
+  NS_ASSERTION( nsnull != widget, "instance pointer is null");
+  
+  widget->OnRealize();
+
+  return PR_TRUE;
+}
+//////////////////////////////////////////////////////////////////////
+
+
+///////////////////////////////////////////////////////////////////////////
+//
+// Dispatch standard event
+//
+///////////////////////////////////////////////////////////////////////////
+/* virtual */ GdkWindow *
+nsWidget::GetWindowForSetBackground()
+{
+  GdkWindow * gdk_window = nsnull;
+
+  if (mWidget)
+  {
+	gdk_window = mWidget->window;
+  }
+
+  return gdk_window;
+}
+///////////////////////////////////////////////////////////////////////////

widget/src/gtk/nsWidget.h

@@ -80,6 +80,8 @@ class nsWidget : public nsBaseWidget
     nsIFontMetrics *GetFont(void);
     NS_IMETHOD SetFont(const nsFont &aFont);
 
+    NS_IMETHOD SetBackgroundColor(const nscolor &aColor);
+
     NS_IMETHOD SetCursor(nsCursor aCursor);
 
     NS_IMETHOD SetColorMap(nsColorMap *aColorMap);
@@ -139,6 +141,9 @@ class nsWidget : public nsBaseWidget
 
     PRBool DispatchWindowEvent(nsGUIEvent* event);
 
+  // Return the Gdk window whose background should change
+  virtual GdkWindow * GetWindowForSetBackground();
+
   //////////////////////////////////////////////////////////////////
   //
   // GTK signal installers
@@ -154,6 +159,8 @@ class nsWidget : public nsBaseWidget
 
   void InstallButtonReleaseSignal(GtkWidget * aWidget);
 
+  void InstallRealizeSignal(GtkWidget * aWidget);
+
   void AddToEventMask(GtkWidget * aWidget,
                       gint        aEventMask);
 
@@ -167,6 +174,7 @@ class nsWidget : public nsBaseWidget
   virtual void OnLeaveNotifySignal(GdkEventCrossing * aGdkCrossingEvent);
   virtual void OnButtonPressSignal(GdkEventButton * aGdkButtonEvent);
   virtual void OnButtonReleaseSignal(GdkEventButton * aGdkButtonEvent);
+  virtual void OnRealize();
 
 private:
 
@@ -196,6 +204,9 @@ private:
                                   GdkEventButton * aGdkButtonEvent, 
                                   gpointer         aData);
 
+  static gint RealizeSignal(GtkWidget *      aWidget, 
+                            gpointer         aData);
+
   //////////////////////////////////////////////////////////////////
   //
   // GTK event support methods