public SubExpressionUpdate(ICalculator calculator, IFunction callFunction, string val, int propIndex, IVariable relative)
{
if (propIndex == -1 && callFunction is IVariableReferencePropertyUsage)
{
if (val != relative.Name)
{
// Compute dependicy properties before returning the variable
// in order to receive correct values.
object var = calculator.ComputeVariable(val, null);
string[] props = ((IVariableReferencePropertyUsage)callFunction).GetDependices(var.GetType());
if (props != null)
{
foreach (string prop in props)
{
Expression exp = calculator.GetExpressionObject(val + "." + prop);
if (exp != null)
m_expressionList.Add(exp);
}
}
}
}
else if (propIndex > 0)
{
// Compute property dependices before this.
string name = val.Substring(0, propIndex);
if (name != relative.Name)
{
object var = calculator.ComputeVariable(name, null);
if (var is IOptimizable)
{
IOptimizable opt = (IOptimizable)var;
PropertyDependicy[] deps = opt.PropertyDependices;
string prop = val.Substring(propIndex + 1);
if (deps != null)
{
Expression[] exps = new Expression[1];
foreach (PropertyDependicy dep in deps)
{
if (dep.ParentProperty == prop)
{
Expression exp = calculator.GetExpressionObject(name + "." + dep.ChildProperty);
if (exp != null)
m_expressionList.Add(exp);
}
}
}
}
}
}
}
//Get a table with all expressions.
public Expression[] GetExpressions()
{
Expression[] expressions = new Expression[m_expressions.Count];
m_expressions.Values.CopyTo(expressions, 0);
return expressions;
}
//Computes the value and puts the result to property.
public void Assign(string key, string expression)
{
string name = key.Substring(0, key.LastIndexOf(PROPERTY_CHAR));
string prop = key.Substring(key.LastIndexOf(PROPERTY_CHAR) + 1);
IVariable var = base.Variable(name);
try
{
System.Reflection.PropertyInfo propertyInfo = var.GetType().GetProperty(prop);
Type type = propertyInfo.PropertyType;
object calcValue = this.Compute(expression, var);
if (object.ReferenceEquals(type, typeof(float)))
{
calcValue = Convert.ToSingle(calcValue);
}
else if (object.ReferenceEquals(type, typeof(int)))
{
calcValue = Convert.ToInt32(calcValue);
}
else if (!object.ReferenceEquals(type, typeof(string)) && calcValue is string)
{
calcValue = Convert.ToString(calcValue);
}
var.GetType().InvokeMember(prop, System.Reflection.BindingFlags.SetProperty, null, var, new object[] {calcValue});
}
catch (Exception ex)
{
//Collection exceptions.
if (ex is ExpressionException)
{
m_exceptions.AddException((ExpressionException)ex);
}
else if (ex is MissingMemberException)
{
//Incompatible datatype between property and expression.
ExpressionException expressionException = new ExpressionException("Expression result is not compatible with property", 0, expression.Length);
Expression exp = new Expression();
exp.SetExpression(key, expression, this);
expressionException.Expression = exp;
m_exceptions.AddException(expressionException);
}
}
}
//Add a new expression.
public void AddExpression(string key, string expression)
{
Expression expr = new Expression();
expr.SetExpression(key, expression, this);
this.m_expressions.Add(key, expr);
}
public Expression[] GetExpressions()
{
//(16.10.2006 09:02)
//Make thread safe.
lock (this)
{
//Create a list with indirect expressions last.
int directCount = m_direct.Count;
Expression[] exps = new Expression[directCount];
m_direct.CopyTo(exps, 0);
return exps;
}
}
public void Add(string key, Expression exp)
{
//(16.10.2006 09:02)
//Make thread safe.
lock (this)
{
if (!m_computing.Contains(key))
{
m_computing.Add(key, key);
m_direct.Enqueue(exp);
//Reset the buffer before computing.
exp.ResetBuffer();
}
}
}
//Copies the optimize info to another optimize manager so
//optimzing is not necessary. Expressions should be exactly the same.
public void CopyInfoTo(OptimizeManager optimizeManager)
{
//Set the expressions that is not optimizable.
Expression[] notOptimizables = new Expression[this.m_notOptimizables.Length];
Calculator calc = optimizeManager.Calculator;
for (int i = 0; i < this.m_notOptimizables.Length; i++)
{
notOptimizables[i] = calc.GetExpressionObject(this.m_notOptimizables[i].Key);
}
optimizeManager.m_notOptimizables = notOptimizables;
optimizeManager.m_eventGraph = new Hashtable();
foreach (DictionaryEntry entry in this.m_eventGraph)
{
ArrayList events = (ArrayList)entry.Value;
ArrayList newEvents = new ArrayList();
foreach (Expression exp in events)
newEvents.Add(calc.GetExpressionObject(exp.Key));
optimizeManager.m_eventGraph[entry.Key] = newEvents;
}
//Set the object map.
IVariable[] variables = optimizeManager.Calculator.GetVariables();
foreach (IVariable variable in variables)
{
if (variable is IOptimizable)
((IOptimizable)variable).PropertyChanged += new PropertyChangedEventHandler(optimizeManager.PropertyChanged);
}
//Copy object references.
optimizeManager.m_objectReferences = new ArrayList();
foreach (string objectReference in this.m_objectReferences)
optimizeManager.m_objectReferences.Add(objectReference);
//Clone compute list.
//Shares indirection info, which makes computation faster in the start.
// optimizeManager.m_computeList = this.m_computeList.Clone();
optimizeManager.m_computeList = new ComputeList();
}
