public ShapeAlterationBuilder Placement(Func<ShapePlacementContext, bool> predicate, PlacementInfo location) {
return Configure(descriptor => {
var next = descriptor.Placement;
descriptor.Placement = ctx => predicate(ctx) ? location : next(ctx);
});
}
public ShapeAlterationBuilder Placement(Func <ShapePlacementContext, bool> predicate, PlacementInfo location)
{
return(Configure(descriptor =>
{
var next = descriptor.Placement;
descriptor.Placement = ctx => predicate(ctx) ? location : next(ctx);
}));
}
public IDictionary<string, IEnumerable<IPlacementDeclaration>> Process(string placementDeclaration)
{
var placements = new Dictionary<string, IEnumerable<IPlacementDeclaration>>();
if (string.IsNullOrEmpty(placementDeclaration)) return placements;
placementDeclaration = placementDeclaration.Trim();
if (!placementDeclaration.StartsWith("<Placement>"))
{
placementDeclaration = "<Placement>" + placementDeclaration;
}
if (!placementDeclaration.EndsWith("</Placement>"))
{
placementDeclaration += "</Placement>";
}
var placementFile = new PlacementParser().Parse(placementDeclaration);
if (placementFile != null)
{
// Invert the tree into a list of leaves and the stack
var entries = DrillDownShapeLocations(placementFile.Nodes, Enumerable.Empty<PlacementMatch>());
foreach (var entry in entries)
{
var shapeLocation = entry.Item1;
var matches = entry.Item2;
string shapeType;
string differentiator;
GetShapeType(shapeLocation, out shapeType, out differentiator);
Func<ShapePlacementContext, bool> predicate = ctx => true;
if (differentiator != "")
{
predicate = ctx => (ctx.Differentiator ?? "") == differentiator;
}
if (matches.Any())
{
predicate = matches.SelectMany(match => match.Terms).Aggregate(predicate, BuildPredicate);
}
var placement = new PlacementInfo();
var segments = shapeLocation.Location.Split(';').Select(s => s.Trim());
foreach (var segment in segments)
{
if (!segment.Contains('='))
{
placement.Location = segment;
}
else
{
var index = segment.IndexOf('=');
var property = segment.Substring(0, index).ToLower();
var value = segment.Substring(index + 1);
switch (property)
{
case "shape":
placement.ShapeType = value;
break;
case "alternate":
placement.Alternates = new[] { value };
break;
case "wrapper":
placement.Wrappers = new[] { value };
break;
}
}
}
if (!placements.ContainsKey(shapeType))
{
placements[shapeType] = Enumerable.Empty<IPlacementDeclaration>();
}
placements[shapeType] = placements[shapeType].Concat(new[]
{
new PlacementDeclaration
{
Predicate = predicate,
Placement = placement
}
});
}
}
return placements;
}
