public static AlignerOptions Options <TItem, TEdge> (this IGraphSceneLayout <TItem, TEdge> layout) where TEdge : IEdge <TItem>, TItem
{
var result = new AlignerOptions {
Dimension = layout.Dimension,
Distance = layout.Distance,
PointOrder = layout.Dimension == Dimension.X ? PointOrder.XY : PointOrder.YX,
};
if (layout.Dimension == Dimension.X)
{
result.AlignX = Alignment.Start;
result.AlignY = layout.Centered ? Alignment.Center : Alignment.Start;
}
else
{
result.AlignX = layout.Centered ? Alignment.Center : Alignment.Start;
result.AlignY = Alignment.Start;
}
if (layout.Dimension == Dimension.X)
{
result.PointOrderDelta = layout.StyleSheet.AutoSize.Width / 2;
}
else
{
result.PointOrderDelta = layout.StyleSheet.AutoSize.Height / 2;
}
return(result);
}
public AlignerOptions(AlignerOptions other)
{
AlignX = other.AlignX;
AlignY = other.AlignY;
PointOrder = other.PointOrder;
PointOrderDelta = other.PointOrderDelta;
Dimension = other.Dimension;
Distance = other.Distance;
Collisions = other.Collisions;
}
public virtual void OneColumn(IEnumerable <TItem> items, Point at, AlignerOptions options)
{
var bounds = new Rectangle(int.MaxValue, int.MaxValue, 0, 0);
MeasureColumn(items, options, ref bounds);
if (bounds.Location == new Point(int.MaxValue, int.MaxValue)) // this happens if items have no shape
{
bounds.Location = at;
}
var locator = new LocateVisitBuilder <TItem>(this.Locator);
LocateColumn(items, bounds, bounds, ref at, locator, options);
}
public virtual void OneColumn(IEnumerable <TItem> items, AlignerOptions options)
{
var comparer = new PointComparer {
Order = options.PointOrder, Delta = options.PointOrderDelta
};
var colItems = items.OrderBy(item => Locator.GetLocation(item), comparer);
var bounds = new Rectangle(int.MaxValue, int.MaxValue, 0, 0);
MeasureColumn(colItems, options, ref bounds);
var colPos = bounds.Location;
var locator = new LocateVisitBuilder <TItem>(this.Locator);
LocateColumn(colItems, bounds, bounds, ref colPos, locator, options);
}
public virtual void Columns(IEnumerable <TItem> items, AlignerOptions options)
{
var comparer = new PointComparer {
Order = options.PointOrder, Delta = options.PointOrderDelta
};
var walk = items.Select(item => new { location = comparer.Round(Locator.GetLocation(item)), item });
var bounds = new Rectangle(int.MaxValue, int.MaxValue, 0, 0);
var cols = new Queue <Tuple <IEnumerable <TItem>, Rectangle> >();
foreach (var col in walk.GroupBy(row => row.location.X).OrderBy(row => row.Key))
{
var colItems = col.Select(r => r.item).OrderBy(item => Locator.GetLocation(item).Y);
cols.Enqueue(MeasureColumn(colItems, options, ref bounds));
}
LocateColumns(cols, bounds, options);
}
public virtual void Columns(TItem root, IEnumerable <TItem> items, AlignerOptions options)
{
if (root == null || items == null)
{
return;
}
var itemCache = new HashSet <TItem>(items);
if (itemCache.Count == 0)
{
return;
}
var walk = this.Graph.Walk().DeepWalk(root, 1)
.Where(l => !(l.Node is TEdge) && itemCache.Contains(l.Node))
.ToArray();
var bounds = new Rectangle(int.MaxValue, int.MaxValue, 0, 0);
Columns(walk, ref bounds, options);
}
public static void FullLayout <TItem, TEdge> (this Aligner <TItem, TEdge> aligner, TItem focused, Point pos, AlignerOptions options, IComparer <TItem> comparer)
where TEdge : IEdge <TItem>, TItem
{
var data = aligner.GraphScene;
var shaper = aligner.Shaper;
var roots = data.Graph.FindRoots(focused);
if (comparer == null)
{
roots = roots
.OrderBy(e => shaper.GetShape(e).Location, new PointComparer {
Order = options.Dimension == Dimension.X ? PointOrder.Y : PointOrder.X
});
}
else
{
roots = roots.OrderBy(e => e, comparer);
}
var walk = data.Graph.Walk();
roots.ForEach(root => {
var steps = new List <LevelItem <TItem> > ();
walk.DeepWalk(root, 1)
.ForEach(l => {
if (l.Node is TEdge)
{
// no need; should be done in aligner.Colomns
aligner.Locator.AffectedEdges.Add((TEdge)l.Node);
}
else
{
steps.Add(l);
}
});
var bounds = new Rectangle(pos, Size.Zero);
aligner.Columns(steps, ref bounds, options);
pos = options.Dimension == Dimension.X ?
new Point(pos.X, pos.Y + bounds.Size.Height + options.Distance.Height) :
new Point(pos.X + bounds.Size.Width + options.Distance.Width, pos.Y);
});
}
public static void OneColumn <TItem, TEdge> (this Aligner <TItem, TEdge> aligner, IEnumerable <TItem> items, AlignerOptions options) where TEdge : IEdge <TItem>, TItem
{
if (items.Count() < 2)
{
return;
}
aligner.OneColumn(items, aligner.Locator.GetLocation(items.First()), options);
}
public static void OneColumn <TItem, TEdge> (this Aligner <TItem, TEdge> aligner, IEnumerable <TItem> items, Point at, AlignerOptions options) where TEdge : IEdge <TItem>, TItem
{
aligner.OneColumn(items, at, options);
}
public static void SetOptions <TItem, TEdge> (this IGraphSceneLayout <TItem, TEdge> layout, AlignerOptions options) where TEdge : IEdge <TItem>, TItem
{
layout.Dimension = options.Dimension;
if (options.Distance.IsZero)
{
options.Distance = layout.Distance;
}
else
{
layout.Distance = options.Distance;
}
if (options.Dimension == Dimension.X)
{
layout.Centered = options.AlignX == Alignment.Center;
}
else
{
layout.Centered = options.AlignY == Alignment.Center;
}
}
public void DequeColumn(Queue <Tuple <IEnumerable <TItem>, Rectangle> > cols, ref Rectangle bounds, AlignerOptions options)
{
var rootCol = cols.Dequeue();
if (options.Dimension == Dimension.X)
{
bounds.Location = new Point(
bounds.X + rootCol.Item2.Width + options.Distance.Width,
bounds.Y - options.AlignY.Delta(bounds.Height, rootCol.Item2.Height));
}
else
{
bounds.Location = new Point(
bounds.X - options.AlignX.Delta(bounds.Width, rootCol.Item2.Width),
bounds.Y + rootCol.Item2.Height + options.Distance.Height);
}
}
protected virtual void LocateColumn(IEnumerable <TItem> colItems, Rectangle colBounds, Rectangle bounds, ref Point colPos, ILocateVisitBuilder <TItem> locate, AlignerOptions options)
{
Func <Point, Point> nextFree = pos =>
options.Collisions.HasFlag(Collisions.PerColumn) ?
NearestNextFreeSpace(pos, colBounds.Size, colItems,
options.Collisions.HasFlag(Collisions.Toggle), options.Dimension, options.Distance).Location :
pos;
Action <TItem> visit = null;
if (options.Dimension == Dimension.X)
{
colPos.Y = bounds.Y + options.AlignY.Delta(bounds.Height, colBounds.Height);
colPos = nextFree(colPos);
locate.Locate(ref visit,
locate.Align(colPos.X, colBounds.Width, options.AlignX, Dimension.X),
locate.Location(colPos.Y, options.Distance.Height, Dimension.Y)
);
VisitItems(colItems, visit);
colPos.X += colBounds.Width + options.Distance.Width;
}
else
{
colPos.X = bounds.X + options.AlignX.Delta(bounds.Width, colBounds.Width);
colPos = nextFree(colPos);
locate.Locate(ref visit,
locate.Location(colPos.X, options.Distance.Width, Dimension.X),
locate.Align(colPos.Y, colBounds.Height, options.AlignY, Dimension.Y)
);
VisitItems(colItems, visit);
colPos.Y += colBounds.Height + options.Distance.Height;
}
}
public virtual void Columns(IEnumerable <LevelItem <TItem> > walk, ref Rectangle bounds, AlignerOptions options)
{
var cols = MeasureWalk(walk, ref bounds, options);
LocateColumns(cols, bounds, options);
}
public virtual Tuple <IEnumerable <TItem>, Rectangle> MeasureColumn(IEnumerable <TItem> colItems, AlignerOptions options, ref Rectangle bounds)
{
Action <TItem> visit = null;
var items = new Queue <TItem>();
visit += i => items.Enqueue(i);
AffectedEdges(ref visit);
var measure = new MeasureVisitBuilder <TItem>(this.Locator);
var fBounds = measure.Bounds(ref visit);
var fSize = measure.SizeToFit(ref visit, options.Distance, options.Dimension);
VisitItems(colItems, visit);
var colBounds = fBounds();
if (colBounds.IsEmpty)
{
colBounds.Location = bounds.Location;
}
colBounds.Size = fSize();
bounds.Location = bounds.Location.Min(colBounds.Location);
bounds.Size = bounds.Size.SizeToFit(colBounds.Size, options.Dimension);
return(new Tuple <IEnumerable <TItem>, Rectangle>(items, colBounds));
}
public virtual void LocateColumn(IEnumerable <TItem> col, Rectangle colBounds, ref Point colPos, AlignerOptions options)
{
var locate = new LocateVisitBuilder <TItem> (this.Locator);
LocateColumn(col, colBounds, new Rectangle(colPos, new Size()), ref colPos, locate, options);
}
public virtual void LocateColumn(IEnumerable <TItem> col, Rectangle colBounds, Rectangle bounds, AlignerOptions options)
{
var colPos = bounds.Location;
var locate = new LocateVisitBuilder <TItem> (this.Locator);
LocateColumn(col, colBounds, bounds, ref colPos, locate, options);
}
public virtual void LocateColumns(Queue <Tuple <IEnumerable <TItem>, Rectangle> > cols, Rectangle bounds, AlignerOptions options)
{
var colPos = bounds.Location;
var locate = new LocateVisitBuilder <TItem>(this.Locator);
while (cols.Count > 0)
{
var col = cols.Dequeue();
LocateColumn(col.Item1, col.Item2, bounds, ref colPos, locate, options);
}
}
public virtual Queue <Tuple <IEnumerable <TItem>, Rectangle> > MeasureWalk(IEnumerable <LevelItem <TItem> > walk, ref Rectangle bounds, AlignerOptions options)
{
var colPos = bounds.Location;
var cols = new Queue <Tuple <IEnumerable <TItem>, Rectangle> >();
foreach (var col in walk.GroupBy(row => row.Level))
{
if (col.Count() == 0)
{
continue;
}
var colItems = col.Select(r => r.Node);
if (options.Dimension == Dimension.X)
{
colItems = colItems.OrderBy(item => Locator.GetLocation(item).Y);
}
else
{
colItems = colItems.OrderBy(item => Locator.GetLocation(item).X);
}
cols.Enqueue(MeasureColumn(colItems, options, ref bounds));
}
if (colPos.X == int.MaxValue && colPos.Y == int.MaxValue)
{
colPos = bounds.Location;
}
else
{
bounds.Location = colPos;
}
if (options.Collisions.HasFlag(Collisions.NextFree) && !options.Collisions.HasFlag(Collisions.PerColumn))
{
var ignore = walk.Select(i => i.Node).ToArray();
var newbounds = NearestNextFreeSpace(bounds.Location, bounds.Size, ignore,
options.Collisions.HasFlag(Collisions.Toggle), options.Dimension, options.Distance);
bounds = newbounds;
}
return(cols);
}