Counting all the Visuals in an Avalon tree

Here's an example of using the VisualTreeWalker from the last post:

     public class TreeStatistics
 {
       private int visualCount;
        private int greatestVisualDepth;
        private int depthTotal;
     private FrameworkElement root;

      public TreeStatistics(FrameworkElement root)
        {
           this.root = root;
       }

       public void GetStatistics()
     {
           this.visualCount = 0;
           this.greatestVisualDepth = 0;
           this.depthTotal = 0;

            VisualTreeWalker walker = new VisualTreeWalker(this.root);
          walker.VisualVisited += this.StatisticsVisitor;
         walker.Walk();
          walker.VisualVisited -= this.StatisticsVisitor;
     }

       private void StatisticsVisitor(Visual v, int currentDepth)
      {
           this.depthTotal += currentDepth;
            this.visualCount++;
         if (currentDepth > this.greatestVisualDepth)
         {
               this.greatestVisualDepth = currentDepth;
            }
       }

       public int VisualCount
      {
           get { return this.visualCount; }
        }

       public int GreatestVisualDepth
      {
           get { return this.greatestVisualDepth; }
        }

       public double AverageVisualDepth
        {
           get { return (double)this.depthTotal / (double)this.visualCount; }
      }
   }

Comments

• Anonymous
  August 21, 2005
  
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