/// <summary>
/// Gets the cached delegate for the specified type. If the delegate does not exist in the cache, it
/// will automatically be created when this method is called.
/// </summary>
/// <param name="type">The type for which to retrieve a comparison delegate.</param>
/// <param name="op">A <see cref="TriggerComparisonOp"/> value which specifies the type of the comparison operation.</param>
/// <returns>The cached <see cref="TriggerComparison"/> delegate for the specified type and operation, or <see langword="null"/>
/// if the specified operation is not supported by the given type.</returns>
public static TriggerComparison Get(Type type, TriggerComparisonOp op)
{
lock (cache)
{
Dictionary <Int32, TriggerComparison> cacheForType;
if (!cache.TryGetValue(type, out cacheForType))
{
cache[type] = cacheForType = new Dictionary <Int32, TriggerComparison>();
CreateComparisonDelegates(type);
}
TriggerComparison comparison;
cacheForType.TryGetValue((Int32)op, out comparison);
return(comparison);
}
}
/// <summary>
/// Gets the cached delegate for the specified type. If the delegate does not exist in the cache, it
/// will automatically be created when this method is called.
/// </summary>
/// <param name="type">The type for which to retrieve a comparison delegate.</param>
/// <param name="op">A <see cref="TriggerComparisonOp"/> value which specifies the type of the comparison operation.</param>
/// <returns>The cached <see cref="TriggerComparison"/> delegate for the specified type and operation, or <c>null</c>
/// if the specified operation is not supported by the given type.</returns>
public static TriggerComparison Get(Type type, TriggerComparisonOp op)
{
lock (cache)
{
Dictionary<Int32, TriggerComparison> cacheForType;
if (!cache.TryGetValue(type, out cacheForType))
{
cache[type] = cacheForType = new Dictionary<Int32, TriggerComparison>();
CreateComparisonDelegates(type);
}
TriggerComparison comparison;
cacheForType.TryGetValue((Int32)op, out comparison);
return comparison;
}
}
/// <summary>
/// Converts a <see cref="TriggerComparisonOp"/> value to the corresponding symbol.
/// </summary>
/// <param name="op">The <see cref="TriggerComparisonOp"/> value to convert.</param>
/// <returns>A symbol that represents the specified operation.</returns>
public static String ConvertToSymbol(this TriggerComparisonOp op)
{
switch (op)
{
case TriggerComparisonOp.Equals:
return("=");
case TriggerComparisonOp.NotEquals:
return("<>");
case TriggerComparisonOp.GreaterThan:
return(">");
case TriggerComparisonOp.GreaterThanOrEqualTo:
return(">=");
case TriggerComparisonOp.LessThan:
return("<");
case TriggerComparisonOp.LessThanOrEqualTo:
return("<=");
}
throw new ArgumentOutOfRangeException("op");
}
/// <summary>
/// Initializes a new instance of the <see cref="PropertyTriggerCondition"/> class.
/// </summary>
/// <param name="op">A <see cref="TriggerComparisonOp"/> value that specifies the type of comparison performed by this condition.</param>
/// <param name="dpropName">The name of the dependency property to evaluate.</param>
/// <param name="refval">The reference value to compare to the value of the dependency property.</param>
internal PropertyTriggerCondition(TriggerComparisonOp op, String dpropName, String refval)
{
this.op = op;
this.dpropName = new UvmlName(dpropName);
this.refval = refval;
}
/// <summary>
/// Initializes a new instance of the <see cref="UvssPropertyTriggerCondition"/> class.
/// </summary>
/// <param name="op">A <see cref="TriggerComparisonOp"/> value that specifies the type of comparison performed by this condition.</param>
/// <param name="propertyName">The name of the property to evaluate.</param>
/// <param name="propertyValue">The value to compare to the value of the evaluated property.</param>
internal UvssPropertyTriggerCondition(TriggerComparisonOp op, DependencyName propertyName, DependencyValue propertyValue)
{
this.op = op;
this.propertyName = propertyName;
this.propertyValue = propertyValue;
}
/// <summary>
/// Initializes a new instance of the <see cref="UvssPropertyTriggerCondition"/> class.
/// </summary>
/// <param name="op">A <see cref="TriggerComparisonOp"/> value that specifies the type of comparison performed by this condition.</param>
/// <param name="propertyName">The name of the property to evaluate.</param>
/// <param name="propertyValue">The value to compare to the value of the evaluated property.</param>
internal UvssPropertyTriggerCondition(TriggerComparisonOp op, DependencyName propertyName, DependencyValue propertyValue)
{
this.op = op;
this.propertyName = propertyName;
this.propertyValue = propertyValue;
}
