public RectangleD(PointD location, SizeD size)
{
x = location.X;
y = location.Y;
width = size.Width;
height = size.Height;
}
/// <summary>
/// == operator.
/// </summary>
/// <param name="left"></param>
/// <param name="right"></param>
/// <returns></returns>
public static bool operator ==(RectangleD left, RectangleD right)
{
if (SizeD.FuzzEqual(left.X, right.X, SizeD.FuzzDistance) && SizeD.FuzzEqual(left.Y, right.Y, SizeD.FuzzDistance) && SizeD.FuzzEqual(left.Width, right.Width, SizeD.FuzzDistance))
{
return(SizeD.FuzzEqual(left.Height, right.Height, SizeD.FuzzDistance));
}
return(false);
}
/// <summary>
/// == Operator.
/// </summary>
public static bool operator ==(PointD left, PointD right)
{
if (SizeD.FuzzEqual(left.X, right.X, SizeD.FuzzDistance))
{
return(SizeD.FuzzEqual(left.Y, right.Y, SizeD.FuzzDistance));
}
return(false);
}
/// <summary>
/// == Operator.
/// </summary>
public static bool operator ==(SizeD size1, SizeD size2)
{
if (FuzzEqual(size1.Width, size2.Width, SizeD.FuzzDistance))
{
return(SizeD.FuzzEqual(size1.Height, size2.Height, SizeD.FuzzDistance));
}
return(false);
}
public override bool Equals(object obj)
{
if (!(obj is PointD))
{
return(false);
}
PointD pointD = (PointD)obj;
if (SizeD.FuzzEqual(X, pointD.X, SizeD.FuzzDistance) && SizeD.FuzzEqual(Y, pointD.Y, SizeD.FuzzDistance))
{
return(pointD.GetType().Equals(this.GetType()));
}
return(false);
}
/// <summary>
/// Equals implementation.
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public override bool Equals(object obj)
{
if (!(obj is SizeD))
{
return(false);
}
SizeD sizeD = (SizeD)obj;
if (SizeD.FuzzEqual(Width, sizeD.Width, SizeD.FuzzDistance) && SizeD.FuzzEqual(Height, sizeD.Height, SizeD.FuzzDistance))
{
return(sizeD.GetType().Equals(this.GetType()));
}
return(false);
}
/// <summary>
/// Equals implementation.
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public override bool Equals(object obj)
{
if (!(obj is RectangleD))
{
return(false);
}
RectangleD rectangleD = (RectangleD)obj;
if (SizeD.FuzzEqual(X, rectangleD.X, SizeD.FuzzDistance) && SizeD.FuzzEqual(Y, rectangleD.Y, SizeD.FuzzDistance) && SizeD.FuzzEqual(Width, rectangleD.Width, SizeD.FuzzDistance))
{
return(SizeD.FuzzEqual(Height, rectangleD.Height, SizeD.FuzzDistance));
}
return(false);
}
/// <summary>
/// Sets the size of this item and propagates it to the hosted shape element if allowed.
/// </summary>
/// <param name="newWidth">Size to apply.</param>
/// <remarks>
/// This function needs to be called withing a modeling transaction.
/// </remarks>
public virtual void SetSize(SizeD newSize)
{
SizeD oldSize = this.Size;
this.Size = newSize;
UpdateAbsoluteLocation();
ResizeParentIfRequired();
// for children: we need to change position if they are left of right side of this shape
foreach (NodeShape shape in this.RelativeChildren)
{
if (shape.MovementBehaviour == ShapeMovementBehaviour.PositionRelativeToParent)
{
PointD newPosition = new PointD(shape.Location.X, shape.Location.Y);
if (newPosition.X >= oldSize.Width)
{
newPosition.X += this.Size.Width - oldSize.Width;
}
if (newPosition.Y >= oldSize.Height)
{
newPosition.Y += this.Size.Height - oldSize.Height;
}
shape.SetLocationOnParentChange(newPosition);
}
else if (shape.MovementBehaviour == ShapeMovementBehaviour.PositionOnEdgeOfParent)
{
if (newSize.Width != oldSize.Width && shape.PlacementSide == PortPlacement.Right)
{
shape.SetLocationOnParentChange(shape.Location);
}
else if (newSize.Height != oldSize.Height && shape.PlacementSide == PortPlacement.Bottom)
{
shape.SetLocationOnParentChange(shape.Location);
}
}
}
if (this.IsRelativeChildShape)
{
if (this.MovementBehaviour == ShapeMovementBehaviour.PositionOnEdgeOfParent)
{
// size of this element changed, need to reposition it on the edge of the parent element
this.SetLocationOnParentChange(this.Location);
}
}
}
protected BaseDiagramItemElementViewModel(ViewModelStore viewModelStore, DiagramSurfaceViewModel diagram, NodeShape shapeElement)
: base(viewModelStore, diagram, shapeElement)
{
this.itemLocation = shapeElement.Location;
this.itemSize = shapeElement.Size;
this.parentItem = null;
this.nestedChildItems = new ObservableCollection<BaseDiagramItemElementViewModel>();
this.nestedChildItemsRO = new ReadOnlyObservableCollection<BaseDiagramItemElementViewModel>(nestedChildItems);
this.relativeChildItems = new ObservableCollection<BaseDiagramItemElementViewModel>();
this.relativeChildItemsRO = new ReadOnlyObservableCollection<BaseDiagramItemElementViewModel>(relativeChildItems);
Subscribe();
}
/// <summary>
/// Resizes the parent of this item if this is required.
/// </summary>
/// <remarks>
/// This function needs to be called withing a modeling transaction.
/// </remarks>
public virtual void ResizeParentIfRequired()
{
if (this.Parent != null && !this.IsRelativeChildShape)
{
RectangleD bounds = this.Bounds;
SizeD parentSize = this.Parent.Size;
SizeD size = new SizeD(
Math.Max(parentSize.Width, bounds.Right),
Math.Max(parentSize.Height, bounds.Bottom));
if (parentSize.Width < size.Width || parentSize.Height < size.Height)
{
this.Parent.SetSize(
new SizeD(this.Parent.Size.Width + (size.Width - parentSize.Width) + 3.0,
this.Parent.Size.Height + (size.Height - parentSize.Height) + 3.0));
}
}
}
public override void ElementPropertyChanged(ElementPropertyChangedEventArgs e)
{
base.ElementPropertyChanged(e);
if (e.ModelElement == null)
{
return;
}
if (e.ModelElement.Store.InSerializationTransaction)
{
return;
}
NodeShape nodeShape = e.ModelElement as NodeShape;
if (nodeShape != null)
{
if (e.DomainProperty.Id == NodeShape.LocationDomainPropertyId)
{
PointD oldLocation = (PointD)e.OldValue;
PointD newLocation = (PointD)e.NewValue;
nodeShape.CorrectLinkShapesOnLocationChanged(oldLocation, newLocation);
}
else if (e.DomainProperty.Id == NodeShape.SizeDomainPropertyId)
{
SizeD oldSize = (SizeD)e.OldValue;
SizeD newSize = (SizeD)e.NewValue;
if (oldSize.Width != 0.0 && oldSize.Height != 0.0)
{
nodeShape.CorrectLinkShapesOnSizeChanged(oldSize, newSize);
}
}
}
}
/// <summary>
/// Substracts the specified size from the specified point.
/// </summary>
/// <param name="point">Point to substract the size from.</param>
/// <param name="size">Size to substract.</param>
/// <returns>Returns the result of subtracting specified Size from the specified Point.</returns>
public static PointD Subtract(PointD point, SizeD size)
{
return new PointD(point.X - size.Width, point.Y - size.Height);
}
/// <summary>
/// Adds the specified size to the specified point.
/// </summary>
/// <param name="point">Point to add the size to.</param>
/// <param name="size">Size to add.</param>
/// <returns>Point with the added size.</returns>
public static PointD Add(PointD point, SizeD size)
{
return new PointD(point.X + size.Width, point.Y + size.Height);
}
/// <summary>
/// Constror.
/// </summary>
/// <param name="size"></param>
public SizeD(SizeD size)
{
width = size.width;
height = size.height;
}
/// <summary>
/// Constror.
/// </summary>
/// <param name="size"></param>
public SizeD(SizeD size)
{
width = size.width;
height = size.height;
}
/// <summary>
/// Substracts the specified size from the specified point.
/// </summary>
/// <param name="point">Point to substract the size from.</param>
/// <param name="size">Size to substract.</param>
/// <returns>Returns the result of subtracting specified Size from the specified Point.</returns>
public static PointD Subtract(PointD point, SizeD size)
{
return(new PointD(point.X - size.Width, point.Y - size.Height));
}
/// <summary>
/// Adds the specified size to the specified point.
/// </summary>
/// <param name="point">Point to add the size to.</param>
/// <param name="size">Size to add.</param>
/// <returns>Point with the added size.</returns>
public static PointD Add(PointD point, SizeD size)
{
return(new PointD(point.X + size.Width, point.Y + size.Height));
}
/// <summary>
/// Sets the size of this item and propagates it to the hosted shape element if allowed.
/// </summary>
/// <param name="newSize">Size to apply.</param>
/// <remarks>
/// This function needs to be called withing a modeling transaction.
/// </remarks>
public virtual void SetSize(SizeD newSize)
{
if (this.ShapeElement.Size != newSize)
this.ShapeElement.SetSize(newSize);
}
/// <summary>
/// Corret link shapes placement.
/// </summary>
/// <param name="sizeOld"></param>
/// <param name="sizeNew"></param>
internal void CorrectLinkShapesOnSizeChanged(SizeD sizeOld, SizeD sizeNew)
{
// List<LinkShape> shapesToLayout = new List<LinkShape>();
double widthChange = (sizeNew.Width - sizeOld.Width);
double heightChange = (sizeNew.Height - sizeOld.Height);
double widthFactor = sizeNew.Width / sizeOld.Width;
double heightFactor = sizeNew.Height / sizeOld.Height;
foreach (SourceAnchor anchor in this.SourceAnchors)
{
if (anchor.FromShape == null)
{
continue;
}
if (anchor.IsDeleted || anchor.IsDeleting)
{
continue;
}
NodeShape shape = anchor.FromShape;
LinkShape linkShape = anchor.LinkShape;
double newLeft = (anchor.AbsoluteLocation.X - shape.AbsoluteLocation.X) * widthFactor + shape.AbsoluteLocation.X;
double newTop = (anchor.AbsoluteLocation.Y - shape.AbsoluteLocation.Y) * heightFactor + shape.AbsoluteLocation.Y;
if (linkShape.LinkPlacementStart == LinkPlacement.Bottom)
{
anchor.AbsoluteLocation = new PointD(newLeft, anchor.AbsoluteLocation.Y + heightChange);
}
else if (linkShape.LinkPlacementStart == LinkPlacement.Top)
{
anchor.AbsoluteLocation = new PointD(newLeft, anchor.AbsoluteLocation.Y);
}
else if (linkShape.LinkPlacementStart == LinkPlacement.Right)
{
anchor.AbsoluteLocation = new PointD(anchor.AbsoluteLocation.X + widthChange, newTop);
}
else if (linkShape.LinkPlacementStart == LinkPlacement.Left)
{
anchor.AbsoluteLocation = new PointD(anchor.AbsoluteLocation.X, newTop);
}
//if (!shapesToLayout.Contains(anchor.LinkShape))
// shapesToLayout.Add(anchor.LinkShape);
}
foreach (TargetAnchor anchor in this.TargetAnchors)
{
if (anchor.ToShape == null)
{
continue;
}
if (anchor.IsDeleted || anchor.IsDeleting)
{
continue;
}
NodeShape shape = anchor.ToShape;
LinkShape linkShape = anchor.LinkShape;
double newLeft = (anchor.AbsoluteLocation.X - shape.AbsoluteLocation.X) * widthFactor + shape.AbsoluteLocation.X;
double newTop = (anchor.AbsoluteLocation.Y - shape.AbsoluteLocation.Y) * heightFactor + shape.AbsoluteLocation.Y;
if (linkShape.LinkPlacementEnd == LinkPlacement.Bottom)
{
anchor.AbsoluteLocation = new PointD(newLeft, anchor.AbsoluteLocation.Y + heightChange);
}
else if (linkShape.LinkPlacementEnd == LinkPlacement.Top)
{
anchor.AbsoluteLocation = new PointD(newLeft, anchor.AbsoluteLocation.Y);
}
else if (linkShape.LinkPlacementEnd == LinkPlacement.Right)
{
anchor.AbsoluteLocation = new PointD(anchor.AbsoluteLocation.X + widthChange, newTop);
}
else if (linkShape.LinkPlacementEnd == LinkPlacement.Left)
{
anchor.AbsoluteLocation = new PointD(anchor.AbsoluteLocation.X, newTop);
}
//if (!shapesToLayout.Contains(anchor.LinkShape))
// shapesToLayout.Add(anchor.LinkShape);
}
//foreach (LinkShape s in shapesToLayout)
// s.Layout(FixedGeometryPoints.SourceAndTarget);
}
/// <summary>
/// Called whenever the size of the hosted shape changes.
/// </summary>
/// <param name="args"></param>
protected virtual void OnSizeChanged(ElementPropertyChangedEventArgs args)
{
if (this.Size != (SizeD)args.NewValue)
{
SizeD oldSize = this.itemSize;
this.itemSize = (SizeD)args.NewValue;
if (oldSize.Width != this.itemSize.Width || oldSize.Height != this.itemSize.Height)
{
OnPropertyChanged("Size");
if (oldSize.Width != this.itemSize.Width)
OnPropertyChanged("Width");
if (oldSize.Height != this.itemSize.Height)
OnPropertyChanged("Height");
}
}
}