private void CallMakePretty()
{
Tree tree = new Tree(selectedNodes,Lines);
Tree wholeTree = new Tree(tree.getWholeTree(),Lines);
if (wholeTree.allNodesOneParentAndLessThanThreeChildren())
undoRedo.InsertInUndoRedo(new MakePrettyCommand(Nodes, selectedNodes));
}
private void CallRemoveNodeInTree()
{
Tree tree = new Tree(selectedNodes,Lines);
Tree wholeTree = new Tree(tree.getWholeTree(),Lines);
if (selectedNodes == null || selectedNodes.Count != 1)
System.Windows.MessageBox.Show("You have to mark excactly one node");
else if (!wholeTree.isValidBST())
System.Windows.MessageBox.Show("This tree is not valid");
else
{
undoRedo.InsertInUndoRedo(new RemoveNodeInTreeCommand(tree, Nodes, selectedNodes, Lines));
}
}