--- a/dwtx/jface/text/source/ChangeRulerColumn.d	Tue Aug 26 02:46:34 2008 +0200
+++ b/dwtx/jface/text/source/ChangeRulerColumn.d	Wed Aug 27 01:57:58 2008 +0200
@@ -182,16 +182,16 @@
 
         }
     }
-    
+
     /**
-     * The view(port) listener. 
+     * The view(port) listener.
      */
-    private const InternalListener fInternalListener= new InternalListener();
+    private const InternalListener fInternalListener;
     /**
      * The mouse handler.
      * @since 3.2
      */
-    private const MouseHandler fMouseHandler= new MouseHandler();
+    private const MouseHandler fMouseHandler;
     /**
      * The revision painter.
      * @since 3.2
@@ -217,7 +217,7 @@
     private IAnnotationModel fAnnotationModel;
     /** The width of the change ruler column. */
     private const int fWidth= 5;
-    
+
     /** Cache for the actual scroll position in pixels */
     private int fScrollPos;
     /** The buffer for double buffering */
@@ -225,28 +225,34 @@
     /** Indicates whether this column reacts on text change events */
     private bool fSensitiveToTextChanges= false;
 
+    private void instanceInit(){
+        fInternalListener= new InternalListener();
+        fMouseHandler= new MouseHandler();
+    }
     /**
      * Creates a new ruler column.
-     * 
+     *
      * @deprecated since 3.2 use {@link #ChangeRulerColumn(ISharedTextColors)} instead
      */
     public this() {
+        instanceInit();
         fRevisionPainter= null;
         fDiffPainter= new DiffPainter(this, null);
     }
-    
+
     /**
      * Creates a new revision ruler column.
-     * 
+     *
      * @param sharedColors the colors to look up RGBs
      * @since 3.2
      */
     public this(ISharedTextColors sharedColors) {
+        instanceInit();
         Assert.isNotNull(sharedColors);
         fRevisionPainter= new RevisionPainter(this, sharedColors);
         fDiffPainter= new DiffPainter(this, null); // no shading
     }
-    
+
     /**
      * Returns the System background color for list widgets.
      *
@@ -293,7 +299,7 @@
             fCachedTextViewer.addViewportListener(fInternalListener);
             fCachedTextViewer.addTextListener(fInternalListener);
         }
-        
+
         fRevisionPainter.setParentRuler(parentRuler);
         fDiffPainter.setParentRuler(parentRuler);
 
@@ -355,7 +361,7 @@
 
     /**
      * Returns the view port height in lines.
-     * 
+     *
      * @return the view port height in lines
      * @deprecated as of 3.2 the number of lines in the viewport cannot be computed because
      *             StyledText supports variable line heights
@@ -368,7 +374,7 @@
     /**
      * Returns <code>true</code> if the viewport displays the entire viewer contents, i.e. the
      * viewer is not vertically scrollable.
-     * 
+     *
      * @return <code>true</code> if the viewport displays the entire contents, <code>false</code> otherwise
      * @since 3.2
      */
@@ -553,10 +559,10 @@
     public void removeVerticalRulerListener(IVerticalRulerListener listener) {
         throw new UnsupportedOperationException();
     }
-    
+
     /**
      * Computes the document based line range visible in the text widget.
-     * 
+     *
      * @return the document based line range visible in the text widget
      * @since 3.2
      */
@@ -564,35 +570,35 @@
         IDocument doc= fCachedTextViewer.getDocument();
         if (doc is null)
             return null;
-        
+
         int topLine;
         IRegion coverage;
-        
+
         if ( cast(ITextViewerExtension5)fCachedTextViewer ) {
             ITextViewerExtension5 extension= cast(ITextViewerExtension5) fCachedTextViewer;
-            
+
             // ITextViewer.getTopIndex returns the fully visible line, but we want the partially
             // visible one
             int widgetTopLine= JFaceTextUtil.getPartialTopIndex(fCachedTextWidget);
             topLine= extension.widgetLine2ModelLine(widgetTopLine);
-            
+
             coverage= extension.getModelCoverage();
-            
+
         } else {
-            topLine= JFaceTextUtil.getPartialTopIndex(fCachedTextViewer); 
+            topLine= JFaceTextUtil.getPartialTopIndex(fCachedTextViewer);
             coverage= fCachedTextViewer.getVisibleRegion();
         }
-        
+
         int bottomLine= fCachedTextViewer.getBottomIndex();
         if (bottomLine !is -1)
             ++ bottomLine;
-        
+
         // clip by coverage window
         try {
             int firstLine= doc.getLineOfOffset(coverage.getOffset());
             if (firstLine > topLine)
                 topLine= firstLine;
-            
+
             int lastLine= doc.getLineOfOffset(coverage.getOffset() + coverage.getLength());
             if (lastLine < bottomLine || bottomLine is -1)
                 bottomLine= lastLine;
@@ -600,11 +606,11 @@
             x.printStackTrace();
             return null;
         }
-        
+
         ILineRange visibleModelLines= new LineRange(topLine, bottomLine - topLine + 1);
         return visibleModelLines;
     }
-    
+
     /*
      * @see dwtx.jface.text.revisions.IRevisionRulerColumn#setRevisionInformation(dwtx.jface.text.revisions.RevisionInformation)
      */
@@ -615,7 +621,7 @@
 
     /**
      * Returns the revision selection provider.
-     * 
+     *
      * @return the revision selection provider
      * @since 3.2
      */