/// <summary>Recomputes the diagram layout based on the current settings.</summary>
public void Layout() {
if (IsEmpty || IsAnimating) return;
// define the visible nodes
var visibleNodes = new HashSet<BplClass>();
Func<BplClass, bool> isVisible = c => visibleNodes.Contains(c);
foreach (var node in Nodes) {
var bplClass = node.Class;
if (ClassFilter(bplClass)) {
node.ComputedVisibility = Visibility.Visible;
visibleNodes.Add(bplClass);
} else {
node.ComputedVisibility = Visibility.Hidden;
}
}
// define the visible blocks
var isClustered = _check(DisplayOptions.GroupByNamespace) && (_check(LayoutMethod.Hierarchic) || _check(LayoutMethod.Spring));
foreach (var block in Blocks) {
if (isClustered && block.Namespace.Classes.Any(c => isVisible(c))) {
block.ComputedVisibility = Visibility.Visible;
} else {
block.ComputedVisibility = Visibility.Hidden;
}
}
// define the visible edges
Edges.Clear();
EdgesLayer.Children.Clear();
SkeletonLayer.Children.Clear();
var visibleEdges = new List<DiagramEdgeInfo>();
Action<Func<BplProperty, bool>, DiagramEdgeRole, int> addEdges = (selector, role, weight) => {
foreach (var source in visibleNodes) {
var parentIsVisible = source.BaseClass != null && isVisible(source.BaseClass);
var properties = (parentIsVisible ? source.OwnProperties : source.Properties);
if (source.Operation != null && source.Operation.Output != null) {
if (parentIsVisible) {
properties = properties.Union(source.Operation.Output.OwnProperties);
} else {
properties = properties.Union(source.Operation.Output.Properties);
}
}
foreach (var property in properties.Where(selector)) {
var target = property.ReferencedClass;
if (isVisible(target)) {
visibleEdges.Add(new DiagramEdgeInfo {
Label = property.Name,
Role = role | (property.IsCollection || property.IsArray ? DiagramEdgeRole.ZeroToMany : DiagramEdgeRole.ZeroToOne),
Source = Nodes[source],
Target = Nodes[target],
Weight = weight
});
}
}
}
};
if (visibleNodes.Count > 0) {
// define the inheritance edges
if (_check(DisplayOptions.ShowInheritance)) {
foreach (var target in visibleNodes) {
var source = target.BaseClass;
while (source != null && !isVisible(source)) source = source.BaseClass;
if (source != null) {
visibleEdges.Add(new DiagramEdgeInfo {
Role = DiagramEdgeRole.Inheritance,
Source = Nodes[source],
Target = Nodes[target],
Weight = 10
});
}
}
}
// define the containement edges
if (_check(DisplayOptions.ShowContainment)) {
addEdges(prop => prop.IsContainer, DiagramEdgeRole.Containment, 5);
}
// define the strong association edges
if (_check(DisplayOptions.ShowAssociations)) {
addEdges(prop => prop.IsAssociation, DiagramEdgeRole.Association, 1);
}
// define the weak association edges
if (_check(DisplayOptions.ShowAssociations)) {
addEdges(prop => prop.IsWeakAssociation, DiagramEdgeRole.WeakAssociation, 1);
}
// define the collaboration edges
if (_check(DisplayOptions.ShowCollaborations)) {
foreach (var bplClass in visibleNodes.Where(c => !c.Collaborations.IsEmpty)) {
foreach (var tuple in bplClass.Collaborations.Where(tuple => isVisible(tuple.Value))) {
visibleEdges.Add(new DiagramEdgeInfo {
Label = tuple.Key,
Role = DiagramEdgeRole.WeakAssociation | DiagramEdgeRole.ZeroToMany,
Source = Nodes[bplClass],
Target = Nodes[tuple.Value],
Weight = 1
});
}
}
}
// define the association edges between service operations and failures
if (_check(DisplayOptions.ShowCollaborations)) {
foreach (var bplClass in visibleNodes.Where(c => c.Operation != null && c.Operation.Failures != null)) {
foreach (var failure in bplClass.Operation.Failures.Where(f => isVisible(f))) {
visibleEdges.Add(new DiagramEdgeInfo {
Label = "Failure",
Role = DiagramEdgeRole.WeakAssociation | DiagramEdgeRole.ZeroToMany,
Source = Nodes[bplClass],
Target = Nodes[failure],
Weight = 1
});
}
}
}
}
// hide disconnected nodes
if (_check(DisplayOptions.HideDisconnected)) {
var connected = new HashSet<DiagramNode>();
foreach (var edge in visibleEdges) {
connected.Add(edge.Source);
connected.Add(edge.Target);
}
if (connected.Count > 0) {
foreach (var node in Nodes.Except(connected)) {
node.ComputedVisibility = Visibility.Hidden;
}
}
}
// layout the diagram
var oldSize = ComputedSize;
DiagramLayout.ComputeLayout(this, visibleEdges, isClustered);
if (_isFirstLayout || _suspendAnimations || AnimationSpeed.TotalMilliseconds < 20) {
ContentBounds.Width = ComputedSize.Width;
ContentBounds.Height = ComputedSize.Height;
Width = ComputedSize.Width;
Height = ComputedSize.Height;
Blocks.Apply(b => b.LayoutChanged());
Nodes.Apply(n => n.LayoutChanged());
Edges.Apply(e => e.Draw(this));
_isFirstLayout = false;
_suspendAnimations = false;
HideAdorners();
} else {
var skeleton = new DiagramSkeleton(Edges);
SkeletonLayer.Children.Add(skeleton);
var prototype = new EffectData { Duration = AnimationSpeed, Interpolator = Interpolators.CubicOut };
var timeline = new ParallelEffect();
timeline.Add(new ResizeEffect(prototype) { Target = this, From = oldSize, To = ComputedSize });
timeline.Add(new ResizeEffect(prototype) { Target = ContentBounds, From = oldSize, To = ComputedSize });
timeline.Add(new NumericEffect(prototype) { Target = skeleton, Property=DiagramSkeleton.StrobeProperty, From = 0.0, To = 1.0});
Nodes.Apply(n => n.ApplyLayoutEffect(timeline, prototype));
Blocks.Apply(b => b.LayoutChanged());
HideAdorners();
IsAnimating = true;
timeline.Play(c => {
SkeletonLayer.Children.Clear();
Edges.Apply(e => e.Draw(this));
IsAnimating = false;
HideAdorners();
});
}
}
/// <summary/>
protected internal override Effect Decompose() {
var effect = new ParallelEffect();
if (FromCenter.CertainlyDifferent(ToCenter)) {
effect.Add(new CenterShiftEffect(this) {
From = FromCenter,
To = ToCenter
});
}
if (FromRotate.CertainlyDifferent(ToRotate)) {
effect.Add(new RotateEffect(this) {
From = FromRotate,
To = ToRotate
});
}
if (FromScale.CertainlyDifferent(ToScale) || FromScaleX.CertainlyDifferent(ToScaleX) || FromScaleY.CertainlyDifferent(ToScaleY)) {
effect.Add(new ScaleEffect(this) {
From = FromScale,
To = ToScale,
FromScaleX = FromScaleX,
ToScaleX = ToScaleX,
FromScaleY = FromScaleY,
ToScaleY = ToScaleY
});
}
if (FromSkewX.CertainlyDifferent(ToSkewX) || FromSkewY.CertainlyDifferent(ToSkewY)) {
effect.Add(new SkewEffect(this) {
FromSkewX = FromSkewX,
ToSkewX = ToSkewX,
FromSkewY = FromSkewY,
ToSkewY = ToSkewY
});
}
if (FromPosition.CertainlyDifferent(ToPosition) || FromX.CertainlyDifferent(ToX) || FromY.CertainlyDifferent(ToY)) {
effect.Add(new MoveEffect(this) {
From = FromPosition,
To = ToPosition,
FromX = FromX,
ToX = ToX,
FromY = FromY,
ToY = ToY
});
}
if (FromSize.CertainlyDifferent(ToSize) || FromWidth.CertainlyDifferent(ToWidth) || FromHeight.CertainlyDifferent(ToHeight)) {
effect.Add(new ResizeEffect(this) {
From = FromSize,
To = ToSize,
FromWidth = FromWidth,
ToWidth = ToWidth,
FromHeight = FromHeight,
ToHeight = ToHeight
});
}
return effect;
}
/// <summary/>
internal void ApplyLayoutEffect(ParallelEffect timeline, Effect prototype) {
if (ComputedVisibility != Visibility) {
Visibility = ComputedVisibility;
if (Visibility == Visibility.Visible) {
X = Canvas.ActualWidth / 2;
Y = Canvas.ActualHeight / 2;
}
}
if (Visibility == Visibility.Visible) {
timeline.Add(new MoveEffect(prototype) {
Target = this,
ToX = ComputedPosition.X,
ToY = ComputedPosition.Y
});
}
}