private void insertNodeToolStripMenuItem_Click(object sender, EventArgs e)
{
if (currSelected == null || currSelected.Content is SymbolicExpressionTreeTerminalNode)
{
return;
}
var parent = currSelected.Content;
using (var dialog = new InsertNodeDialog()) {
dialog.SetAllowedSymbols(grammar.Symbols.Where(s => !(s is ProgramRootSymbol || s is StartSymbol || s is Defun || s is GroupSymbol))); // allow everything
dialog.ShowDialog(this);
if (dialog.DialogResult != DialogResult.OK)
{
return;
}
var symbol = dialog.SelectedSymbol;
var node = symbol.CreateTreeNode();
if (node is ConstantTreeNode)
{
var constant = node as ConstantTreeNode;
constant.Value = double.Parse(dialog.constantValueTextBox.Text);
}
else if (node is VariableTreeNode)
{
var variable = node as VariableTreeNode;
variable.Weight = double.Parse(dialog.variableWeightTextBox.Text);
variable.VariableName = dialog.SelectedVariableName;
}
else if (node.Symbol.MinimumArity <= parent.SubtreeCount && node.Symbol.MaximumArity >= parent.SubtreeCount)
{
for (int i = parent.SubtreeCount - 1; i >= 0; --i)
{
var child = parent.GetSubtree(i);
parent.RemoveSubtree(i);
node.AddSubtree(child);
}
}
// the if condition will always be true for the final else clause above
if (parent.Symbol.MaximumArity > parent.SubtreeCount)
{
ModifyTree(Tree, parent, null, node);
}
}
currSelected = null;
}
private void insertNodeToolStripMenuItem_Click(object sender, EventArgs e) {
if (currSelected == null || currSelected.Content is SymbolicExpressionTreeTerminalNode) return;
var parent = currSelected.Content;
using (var dialog = new InsertNodeDialog()) {
dialog.SetAllowedSymbols(grammar.Symbols.Where(s => !(s is ProgramRootSymbol || s is StartSymbol || s is Defun || s is GroupSymbol))); // allow everything
dialog.ShowDialog(this);
if (dialog.DialogResult != DialogResult.OK) return;
var symbol = dialog.SelectedSymbol();
var node = symbol.CreateTreeNode();
if (node is ConstantTreeNode) {
var constant = node as ConstantTreeNode;
constant.Value = double.Parse(dialog.constantValueTextBox.Text);
} else if (node is VariableTreeNode) {
var variable = node as VariableTreeNode;
variable.Weight = double.Parse(dialog.variableWeightTextBox.Text);
variable.VariableName = dialog.variableNamesCombo.Text;
} else if (node.Symbol.MinimumArity <= parent.SubtreeCount && node.Symbol.MaximumArity >= parent.SubtreeCount) {
for (int i = parent.SubtreeCount - 1; i >= 0; --i) {
var child = parent.GetSubtree(i);
parent.RemoveSubtree(i);
node.AddSubtree(child);
}
}
// the if condition will always be true for the final else clause above
if (parent.Symbol.MaximumArity > parent.SubtreeCount) {
ModifyTree(Tree, parent, null, node);
}
}
currSelected = null;
}
