private void SetParameters(CodeExpression root, EvaluatorParameters parameters)
{
if (root is CodeBinaryOperatorExpression)
{
CodeBinaryOperatorExpression bin = (CodeBinaryOperatorExpression)root;
this.SetParameters(bin.Left, parameters);
this.SetParameters(bin.Right, parameters);
}
else
{
if (root is CodePrimitiveExpression)
{
CodePrimitiveExpression primitive = (CodePrimitiveExpression)root;
int parameterNumber = EvaluatorGenerator.GetParameterIndex(primitive, false);
if (parameterNumber >= 0)
{
parameters.SetParameter(parameterNumber, primitive.Value);
}
}
else
{
throw new ApplicationException("Cannot evaluate a rule until all variables have been set.");
}
}
}
private void OnSetValueClick(object sender, EventArgs e)
{
ToolStripMenuItem item = (ToolStripMenuItem)sender;
ToExchange exchange = (ToExchange)item.Tag;
ToolStripTextBox textBox = exchange.valueBox;
object primitiveObject = null;
try
{
primitiveObject = Convert.ChangeType(textBox.Text, EvaluatorGenerator.GetType(exchange.original, true));
}
catch (FormatException)
{
MessageBox.Show(string.Format("Could not convert '{0}' to object of type '{1}'. Please enter a value into the textbox in the context menu.", textBox.Text, EvaluatorGenerator.GetType(exchange.original, false)));
return;
}
CodePrimitiveExpression replacement = new CodePrimitiveExpression(primitiveObject);
replacement.UserData.Add(typeof(ButtonAndMenuData), exchange.original.UserData[typeof(ButtonAndMenuData)]);
EvaluatorGenerator.SetType(replacement, EvaluatorGenerator.GetType(exchange.original, true));
EvaluatorGenerator.SetParameterIndex(replacement, EvaluatorGenerator.GetParameterIndex(exchange.original, true));
CodeBinaryOperatorExpression expression = ParentLink.GetParent(exchange.original);
if (ParentLink.GetSide(exchange.original) == ParentSide.Left)
{
expression.Left = replacement;
}
else
{
expression.Right = replacement;
}
ToolStripMenuItem menuItem = new ToolStripMenuItem(textBox.Text);
menuItem.Tag = new ToExchange(exchange.original, replacement);
menuItem.Click += OnContextMenuItemClick;
List <ToolStripItem> menuItems = ButtonAndMenuData.GetMenuItems(exchange.original);
menuItems.Insert(1, menuItem);
if (menuItems.Count > 3 + 1 + 5)
{
menuItems.RemoveAt(6);
}
textBox.Clear();
this.highlightedAreas.Clear();
this.Refresh();
this.CheckEvaluateButtonEnable();
}
/// <summary>
/// Clone an expression and display it on the panel.
/// </summary>
/// <param name="newExpression">Expression to clone and display</param>
/// <param name="thisType">Type to which CodeThisReferenceExpression
/// is meant to refer within the CodeExpression</param>
public void CloneAndSetExpression(CodeExpression newExpression, Type thisType)
{
if (currentExpressionValue != null)
{
this.DisableButtons(currentExpressionValue);
this.highlightedAreas.Clear();
}
this.currentExpressionValue = CloneExpression(newExpression);
this.evaluator = EvaluatorGenerator.GenerateEvaluator(currentExpressionValue, thisType);
this.AdornData(currentExpressionValue);
this.Refresh();
this.CheckEvaluateButtonEnable();
}
private void CreateButtonAndMenu(CodeExpression root)
{
Button menuButton = new Button();
menuButton.Size = new Size(5, 5);
menuButton.FlatStyle = FlatStyle.Popup;
menuButton.Click += OnSubExpressionButtonClick;
menuButton.Leave += OnSubExpressionButtonLeave;
menuButton.Visible = false;
this.Controls.Add(menuButton);
List <ToolStripItem> menuItems = new List <ToolStripItem>();
ButtonAndMenuData data = new ButtonAndMenuData(menuButton, menuItems);
root.UserData.Add(typeof(ButtonAndMenuData), data);
ToolStripMenuItem menuItem = new ToolStripMenuItem(Serialize(root));
menuItem.Click += OnContextMenuItemClick;
menuItem.Tag = new ToExchange(root, root);
menuItems.Add(menuItem);
Type rootType = EvaluatorGenerator.GetType(root, false);
if (rootType != null)
{
if (typeof(bool) == rootType)
{
ToolStripMenuItem trueItem = new ToolStripMenuItem("True");
CodePrimitiveExpression trueExpression = new CodePrimitiveExpression(true);
trueExpression.UserData.Add(typeof(ButtonAndMenuData), data);
EvaluatorGenerator.SetType(trueExpression, typeof(bool));
EvaluatorGenerator.SetParameterIndex(trueExpression, EvaluatorGenerator.GetParameterIndex(root, true));
trueItem.Tag = new ToExchange(root, trueExpression);
trueItem.Click += OnContextMenuItemClick;
menuItems.Add(trueItem);
ToolStripMenuItem falseItem = new ToolStripMenuItem("False");
CodePrimitiveExpression falseExpression = new CodePrimitiveExpression(false);
falseExpression.UserData.Add(typeof(ButtonAndMenuData), data);
EvaluatorGenerator.SetType(falseExpression, typeof(bool));
EvaluatorGenerator.SetParameterIndex(falseExpression, EvaluatorGenerator.GetParameterIndex(root, true));
falseItem.Tag = new ToExchange(root, falseExpression);
falseItem.Click += OnContextMenuItemClick;
menuItems.Add(falseItem);
}
else if (typeof(IConvertible).IsAssignableFrom(rootType))
{
ToolStripSeparator separator = new ToolStripSeparator();
menuItems.Add(separator);
ToolStripTextBox textBox = new ToolStripTextBox();
textBox.AcceptsReturn = false;
menuItems.Add(textBox);
ToolStripMenuItem setValue = new ToolStripMenuItem(string.Format("Enter {0}", EvaluatorGenerator.GetType(root, true).FullName));
setValue.Tag = new ToExchange(root, textBox);
setValue.Click += OnSetValueClick;
menuItems.Add(setValue);
}
}
}