public void DrawTree( Canvas canvas, TreeNode tree )
{
DrawingArea = canvas;
var annotatedTree = Helpers.ToAnnotatedTree( tree );
PrepareNode( annotatedTree );
PerformLayout(annotatedTree);
DrawNode( annotatedTree );
DrawLines( annotatedTree );
int treeHeight = Helpers.TreeMaxHeight( annotatedTree );
int treeWidth = Helpers.TreeMaxWidth( annotatedTree );
DrawingArea.Width = treeWidth * 50;
DrawingArea.Height = treeHeight * 80;
}
public static AnnotatedTreeNode ToAnnotatedTree( TreeNode node )
{
var annotatedNode = new AnnotatedTreeNode()
{
Payload = node.Payload,
IsCompareSource = node.IsCompareSource,
IsCompareTarget = node.IsCompareTarget
};
if( node.Children != null )
{
annotatedNode.Children = new List<AnnotatedTreeNode>();
for( int i=0; i < node.Children.Count; i++ )
{
var child = ToAnnotatedTree( node.Children[ i ] );
annotatedNode.Children.Add( child );
}
}
return annotatedNode;
}
void MainWindow_Loaded( object sender, RoutedEventArgs e )
{
#region Fancy Tree - 3 000 000 nodes
/*
const int COUNT = 25;
var randomTree = new TreeNode();
randomTree.Children = new List<TreeNode>();
for( int i=0; i < COUNT; i++ )
{
var childI = new TreeNode();
childI.Children = new List<TreeNode>();
for( int j=0; j < COUNT; j++ )
{
var childJ = new TreeNode();
childJ.Children = new List<TreeNode>();
for( int k=0; k < COUNT; k++ )
{
var childK = new TreeNode();
// childK.Children = new List<TreeNode>();
//for( int l=0; l < COUNT; l++ )
//{
// var childL = new TreeNode();
// childL.Children = new List<TreeNode>();
// for( int m=0; m < COUNT; m++ )
// {
// var childM = new TreeNode();
// childM.Children = new List<TreeNode>();
// for( int o=0; o < COUNT; o++ )
// {
// var childO = new TreeNode();
// childM.Children.Add( childO );
// }
// childL.Children.Add( childM );
// }
// childK.Children.Add( childL );
//}
childJ.Children.Add( childK );
}
childI.Children.Add( childJ );
}
randomTree.Children.Add( childI );
}
var treeViewer = new SimpleTreeVisualizer();
treeViewer.DrawTree( TreeViewer, randomTree );
*/
#endregion;
#region Arbitrary Binary Tree
/*
var rootBinaryNode = new BinaryNode() { Payload = new Payload() { Value1 = 1 }, IsCompareSource = true, IsCompareTarget = false };
// First Level
rootBinaryNode.LeftNode = new BinaryNode() { Payload = new Payload() { Value1 = 2 }, IsCompareSource = false, IsCompareTarget = true };
rootBinaryNode.RightNode = new BinaryNode() { Payload = new Payload() { Value1 = 3 }, IsCompareSource = false, IsCompareTarget = false };
// Second Level
rootBinaryNode.LeftNode.LeftNode = new BinaryNode() { Payload = new Payload() { Value1 = 4 }, IsCompareSource = false, IsCompareTarget = false };
rootBinaryNode.RightNode.LeftNode = new BinaryNode() { Payload = new Payload() { Value1 = 5 }, IsCompareSource = false, IsCompareTarget = false };
rootBinaryNode.RightNode.RightNode = new BinaryNode() { Payload = new Payload() { Value1 = 6 }, IsCompareSource = false, IsCompareTarget = false };
// Third Level
rootBinaryNode.LeftNode.LeftNode.LeftNode = new BinaryNode() { Payload = new Payload() { Value1 = 7 }, IsCompareSource = false, IsCompareTarget = false };
rootBinaryNode.LeftNode.LeftNode.RightNode = new BinaryNode() { Payload = new Payload() { Value1 = 8 }, IsCompareSource = false, IsCompareTarget = false };
var binaryTreeViewer = new SimpleTreeVisualizer();
binaryTreeViewer.DrawTree( TreeViewer, rootBinaryNode );
*/
#endregion
#region Arbitrary Tree
var rootTreeNode = new TreeNode();
// First Level
rootTreeNode.Children = new List<TreeNode>();
rootTreeNode.Children.Add( new TreeNode() );
rootTreeNode.Children.Add( new TreeNode() );
rootTreeNode.Children.Add( new TreeNode() );
rootTreeNode.Children.Add( new TreeNode() );
rootTreeNode.Children.Add( new TreeNode() );
rootTreeNode.Children.Add( new TreeNode() );
rootTreeNode.Children.Add( new TreeNode() );
rootTreeNode.Children.Add( new TreeNode() );
rootTreeNode.Children.Add( new TreeNode() );
// Second Level
rootTreeNode.Children[ 1 ].Children = new List<TreeNode>();
rootTreeNode.Children[ 1 ].Children.Add( new TreeNode() );
rootTreeNode.Children[ 1 ].Children.Add( new TreeNode() );
rootTreeNode.Children[ 1 ].Children.Add( new TreeNode() );
rootTreeNode.Children[ 1 ].Children.Add( new TreeNode() );
rootTreeNode.Children[ 1 ].Children.Add( new TreeNode() );
rootTreeNode.Children[ 2 ].Children = new List<TreeNode>();
rootTreeNode.Children[ 2 ].Children.Add( new TreeNode() );
rootTreeNode.Children[ 2 ].Children.Add( new TreeNode() );
// Third Level
rootTreeNode.Children[ 1 ].Children[ 0 ].Children = new List<TreeNode>();
rootTreeNode.Children[ 1 ].Children[ 0 ].Children.Add( new TreeNode() );
rootTreeNode.Children[ 1 ].Children[ 3 ].Children = new List<TreeNode>();
rootTreeNode.Children[ 1 ].Children[ 3 ].Children.Add( new TreeNode() );
rootTreeNode.Children[ 1 ].Children[ 3 ].Children.Add( new TreeNode() );
rootTreeNode.Children[ 1 ].Children[ 3 ].Children.Add( new TreeNode() );
rootTreeNode.Children[ 1 ].Children[ 3 ].Children.Add( new TreeNode() );
rootTreeNode.Children[ 1 ].Children[ 3 ].Children[ 3 ].Children = new List<TreeNode>();
rootTreeNode.Children[ 1 ].Children[ 3 ].Children[ 3 ].Children.Add( new TreeNode() );
rootTreeNode.Children[ 1 ].Children[ 3 ].Children[ 3 ].Children.Add( new TreeNode() );
rootTreeNode.Children[ 1 ].Children[ 3 ].Children[ 3 ].Children.Add( new TreeNode() );
var treeViewer = new SimpleTreeVisualizer();
treeViewer.DrawTree( TreeViewer, rootTreeNode );
#endregion
}