/// <summary>
/// Sets the location of this item and propagates it to the hosted shape element if allowed.
/// </summary>
/// <param name="proposedLocation">Location to apply.</param>
/// <param name="bResizeParentIfRequired">Resize parent if required.</param>
/// <remarks>
/// This function needs to be called withing a modeling transaction.
/// </remarks>
public virtual void SetLocation(PointD proposedLocation, bool bResizeParentIfRequired)
{
PointD newLocation = proposedLocation;
if (this.IsRelativeChildShape)
{
// correct the proposed location
if (this.MovementBehaviour == ShapeMovementBehaviour.PositionOnEdgeOfParent)
{
if (this.Parent != null)
{
newLocation = NodeShape.CorrectPortLocation(this.Parent, this, proposedLocation);
}
}
}
PointD oldLocation = this.Location;
this.Location = newLocation;
this.UpdateAbsoluteLocation();
if (bResizeParentIfRequired)
{
this.ResizeParentIfRequired();
}
}
/// <summary>
/// Adds a proto element to the current element.
/// </summary>
/// <param name="protoElement">Proto element representation of the element that is to be added.</param>
/// <param name="groupMerger">
/// Group merger class used to track id mapping, merge errors/warnings and
/// postprocess merging by rebuilding reference relationships.
/// </param>
/// <param name="isRoot">Root element?</param>
public virtual void ModelMerge(ModelProtoElement protoElement, ModelProtoGroupMerger groupMerger, bool isRoot)
{
if (protoElement.CustomArguments is DiagramModelMergeOptions)
{
DiagramModelMergeOptions options = protoElement.CustomArguments as DiagramModelMergeOptions;
Guid elementID = options.ElementId;
ModelProtoElement elementP = groupMerger.GetElementById(elementID);
if (elementP != null)
{
(this.Element as IModelMergeElements).ModelMerge(elementP, groupMerger, isRoot);
}
ModelElement copiedElement = this.Store.ElementDirectory.FindElement(groupMerger.GetIdMapping(options.ElementId));
// create shape for that element
this.FixUpMissingShapes();
NodeShape shape = DiagramHelper.FindShape(this.Store, options.ShapeDomainClassId, copiedElement.Id) as NodeShape;
if (shape != null)
{
groupMerger.SetIdMapping(protoElement.ElementId, shape.Id);
}
}
}
/// <summary>
/// Finalize. This method is called on each copied element once all the elements and links are processed.
/// </summary>
/// <param name="protoElement">Proto element representation of the element that is to be added.</param>
/// <param name="groupMerger">
/// Group merger class used to track id mapping, merge errors/warnings and
/// postprocess merging by rebuilding reference relationships.
/// </param>
public virtual void ModelFinalize(ModelProtoElement protoElement, ModelProtoGroupMerger groupMerger)
{
if (protoElement.CustomArguments is DiagramModelMergeOptions)
{
DiagramModelMergeOptions options = protoElement.CustomArguments as DiagramModelMergeOptions;
Guid elementID = options.ElementId;
ModelProtoElement elementP = groupMerger.GetElementById(elementID);
if (elementP != null)
{
(this.Element as IModelMergeElements).ModelFinalize(elementP, groupMerger);
}
NodeShape shape = this.Store.ElementDirectory.FindElement(
groupMerger.GetIdMapping(protoElement.ElementId)) as NodeShape;
// restore layout
Store store = new Microsoft.VisualStudio.Modeling.Store(typeof(DiagramsDSLDomainModel));
LayoutInfo info;
using (Transaction t = store.TransactionManager.BeginTransaction())
{
info = options.GetLayoutInfo(store);
t.Commit();
}
LayoutHelper.ApplyLayout(this, this.Diagram, info);
store.Dispose();
if (!shape.IsRelativeChildShape)
{
shape.SetLocation(new PointD(RelativePastePoint.X + options.RelativeLocation.X,
RelativePastePoint.Y + options.RelativeLocation.Y));
}
}
}
/// <summary>
/// Called whenever a child element is added to a diagram.
/// </summary>
/// <param name="e"></param>
public override void ElementAdded(ElementAddedEventArgs e)
{
base.ElementAdded(e);
DiagramHasChildren con = e.ModelElement as DiagramHasChildren;
if (con != null)
{
NodeShape nodeShape = con.ChildShape;
Diagram diagram = con.Diagram;
if (nodeShape != null && diagram != null)
{
if (nodeShape.IsDeleted)
{
return;
}
diagram.AddToShapeMapping(nodeShape);
if (nodeShape.Location == PointD.Empty)
{
nodeShape.SetAtFreePositionOnParent();
}
}
else
{
con.Delete();
}
}
}
private static void ProcessNodeShape(NodeShape shapeElement, LinkedElementCollection <NodeShapeInfo> infos)
{
// try to find NodeShapeInfo for shape element
NodeShapeInfo info = null;
foreach (NodeShapeInfo i in infos)
{
if (i.ElementId == shapeElement.Element.Id)
{
info = i;
break;
}
}
if (info == null)
{
shapeElement.UpdateAbsoluteLocation();
return;
}
shapeElement.Size = info.Size;
shapeElement.SetLocation(info.RelativeLocation);
// children
foreach (NodeShape shape in shapeElement.Children)
{
ProcessNodeShape(shape, info.ChildrenInfos);
}
}
/// <summary>
/// Correct children.
/// </summary>
public virtual bool CorrectChildren()
{
bool bRet = false;
for (int i = this.Children.Count - 1; i >= 0; i--)
{
NodeShape shape = this.Children[i];
if (!this.CanHostShape(shape.GetDomainClassId()))
{
shape.Delete();
bRet = true;
}
else if (shape.CorrectChildren())
{
bRet = true;
}
}
foreach (Diagram d in this.IncludedDiagrams)
{
if (d.CorrectChildren())
{
bRet = true;
}
}
return(bRet);
}
/// <summary>
/// Calculates an allowed position based on the given proposed position. The Idea behind this is
/// to correct the proposed position if we are within an target elements border.
/// </summary>
/// <param name="targetShape">Target shape.</param>
/// <param name="proposedPosition">Proposed position.</param>
/// <returns>Corrected position.</returns>
public virtual PointD CalculateAllowedPosition(NodeShape targetShape, PointD proposedPosition)
{
PointD position = proposedPosition;
RectangleD absoluteBounds = targetShape.AbsoluteBounds;
if (position.Y > absoluteBounds.Top - ConnectorHeight && position.Y < absoluteBounds.Top + ConnectorHeight)
{
position.Y = absoluteBounds.Top;
}
else if (position.Y > absoluteBounds.Bottom - ConnectorHeight && position.Y < absoluteBounds.Bottom + ConnectorHeight)
{
position.Y = absoluteBounds.Bottom;
}
if (position.X > absoluteBounds.Left - ConnectorWidth && position.X < absoluteBounds.Left + ConnectorWidth)
{
position.X = absoluteBounds.Left;
}
else if (position.X > absoluteBounds.Right - ConnectorWidth && position.X < absoluteBounds.Right + ConnectorWidth)
{
position.X = absoluteBounds.Right;
}
return(position);
}
public override void ElementAdded(ElementAddedEventArgs e)
{
ShapeElementContainsChildShapes con = e.ModelElement as ShapeElementContainsChildShapes;
if (con != null)
{
NodeShape childShape = con.ChildShape;
NodeShape parentShape = con.ParentShape;
if (childShape != null && parentShape != null)
{
if (childShape.IsDeleted)
{
return;
}
if (parentShape.IsDeleted)
{
return;
}
parentShape.AddToShapeMapping(childShape);
childShape.UpdateAbsoluteLocation();
if (childShape.Location == PointD.Empty)
{
childShape.SetAtFreePositionOnParent();
}
}
else
{
con.Delete();
}
}
}
/// <summary>
/// Verifies if the position of the specified shape is acceptable.
/// </summary>
/// <param name="shape">Node shape.</param>
public static bool IsShapePositionAcceptable(NodeShape shape)
{
if (!shape.IsRelativeChildShape)
{
if (shape.Parent != null)
{
if (shape.AbsoluteLocation.X < shape.Parent.AbsoluteLocation.X ||
shape.AbsoluteLocation.Y < shape.Parent.AbsoluteLocation.Y ||
shape.AbsoluteBounds.Right > shape.Parent.AbsoluteBounds.Right ||
shape.AbsoluteBounds.Bottom > shape.Parent.AbsoluteBounds.Bottom)
{
return(false);
}
}
}
else if (shape.Parent != null)
{
PointD location = NodeShape.CorrectPortLocation(shape.Parent, shape, shape.AbsoluteLocation);
if (location != shape.AbsoluteLocation)
{
return(false);
}
}
return(true);
}
public override void ElementDeleting(ElementDeletingEventArgs e)
{
base.ElementDeleting(e);
NodeShape nodeShape = e.ModelElement as NodeShape;
if (nodeShape != null)
{
if (nodeShape.SourceAnchors.Count > 0)
{
for (int i = nodeShape.SourceAnchors.Count - 1; i >= 0; i--)
{
if (nodeShape.SourceAnchors[i].LinkShape != null)
{
nodeShape.SourceAnchors[i].LinkShape.Delete();
}
}
}
if (nodeShape.TargetAnchors.Count > 0)
{
for (int i = nodeShape.TargetAnchors.Count - 1; i >= 0; i--)
{
if (nodeShape.TargetAnchors[i].LinkShape != null)
{
nodeShape.TargetAnchors[i].LinkShape.Delete();
}
}
}
}
}
/*
* /// <summary>
* /// Tries to find a free position on parent and update the location of the shape to that location.
* /// </summary>
* /// <returns>
* /// Coordinates of a free position.
* /// </returns>
* /// <remarks>
* /// Needs to be called within a modeling transaction.
* /// </remarks>
* public virtual void SetAtFreePositionOnParent()
* {
* IList<NodeShape> shapes;
* if (this.Parent == null)
* {
* // free position on diagram
* Diagram diagram = this.Diagram;
* shapes = diagram.Children;
* }
* else
* {
* if (this.IsRelativeChildShape)
* {
* float width = (float)this.Bounds.Width;
* float height = (float)this.Bounds.Height;
*
* float parentWidth = (float)this.Parent.Bounds.Width;
* float parentHeight = (float)this.Parent.Bounds.Height;
*
* Dictionary<PortPlacement, int> dict = new Dictionary<PortPlacement, int>();
* dict.Add(PortPlacement.Left, 0);
* dict.Add(PortPlacement.Top, 0);
* dict.Add(PortPlacement.Bottom, 0);
* dict.Add(PortPlacement.Right, 0);
* for (int i = 0; i < this.Parent.RelativeChildren.Count; i++)
* {
* if (this.Parent.RelativeChildren[i] == this)
* continue;
*
* dict[this.Parent.RelativeChildren[i].PlacementSide]++;
* }
* List<KeyValuePair<PortPlacement, int>> myList = new List<KeyValuePair<PortPlacement, int>>(dict);
* myList.Sort((firstPair, nextPair) =>
* {
* return firstPair.Value.CompareTo(nextPair.Value);
* });
*
* foreach (KeyValuePair<PortPlacement, int> p in myList)
* {
* RectangleF rectH;
* switch (p.Key)
* {
* case PortPlacement.Left:
* rectH = new RectangleF(-width / 2, 0, width, parentHeight);
* break;
*
* case PortPlacement.Top:
* rectH = new RectangleF(0, -height / 2, parentWidth, height);
* break;
*
* case PortPlacement.Right:
* rectH = new RectangleF(parentWidth - width / 2, 0, width, parentHeight);
* break;
*
* case PortPlacement.Bottom:
* rectH = new RectangleF(0, parentHeight - height / 2, parentWidth, height);
* break;
*
* default:
* throw new NotSupportedException();
* }
*
* if (SetPortAtFreePositionOnParent(p.Key, rectH))
* {
* return;
* }
* }
*
* this.SetLocation(NodeShape.CorrectPortLocation(this.Parent, this, new PointD(0, 0)));
* return;
* }
*
* // free position on parent shape
* shapes = this.Parent.NestedChildren;
* }
*
* // trivial algo.. TODO: find something good
* RectangleF rect = new RectangleF(0, 0, (float)this.Size.Width, (float)this.Size.Height);
*
* // find area that is already filled
* RectangleF completeBounds = new RectangleF(0, 0, 0, 0);
* for (int i = 0; i < shapes.Count; i++)
* {
* if (shapes[i] == this)
* continue;
*
* if (i == 0)
* completeBounds = shapes[i].Bounds.ToRectangleF();
* else
* {
* RectangleF f = shapes[i].Bounds.ToRectangleF();
* if (completeBounds.X > f.X)
* completeBounds.X = f.X;
* if (completeBounds.Y > f.Y)
* completeBounds.Y = f.Y;
*
* if (completeBounds.Right < f.Right)
* completeBounds.Width = f.Right - completeBounds.X;
*
* if (completeBounds.Bottom < f.Bottom)
* completeBounds.Height = f.Bottom - completeBounds.Y;
* }
* }
*
* /*
* // see if we can insert shape somewhere in that area
* // if not, add shape right at the edge of that area
* for (int i = 0; i < shapes.Count; i++)
* {
* if (shapes[i] == this)
* continue;
*
* // TODO ... (not necessaraly required)
* }
*
* // could not add shape in the completeBounds are, so add it outside of it
*/
/*
* if( completeBounds.Width < completeBounds.Height )
* this.SetLocation(new PointD(completeBounds.Right + 5, 5));
* else
* this.SetLocation(new PointD(5, completeBounds.Bottom + 5));
* this.UpdateAbsoluteLocation();
* }
*
* private bool SetPortAtFreePositionOnParent(PortPlacement side, RectangleF freeRectangle)
* {
* List<RectangleF> freeRectangles = new List<RectangleF>();
* freeRectangles.Add(freeRectangle);
*
* for (int i = 0; i < this.Parent.RelativeChildren.Count; i++)
* {
* if (this.Parent.RelativeChildren[i] == this)
* continue;
*
* if (this.Parent.RelativeChildren[i].PlacementSide != side)
* continue;
*
* RectangleF s = this.Parent.RelativeChildren[i].Bounds.ToRectangleF();
* for (int y = freeRectangles.Count - 1; y >= 0; y--)
* {
* RectangleF r = freeRectangles[y];
* RectangleF t = r;
* r.Intersect(s);
*
* if (!r.IsEmpty)
* {
* // remove r from freeRectangley[y] --> yields <=2 rects
* // add 2 rects to freeRectangles
* freeRectangles.RemoveAt(y);
*
* switch (side)
* {
* case PortPlacement.Left:
* case PortPlacement.Right:
* if (t.Y < r.Y)
* {
* // first r
* RectangleF r1 = new RectangleF(t.X, t.Y, t.Width, r.Y - t.Y);
* freeRectangles.Add(r1);
* }
*
* if (r.Bottom < t.Bottom)
* {
* // second r
* RectangleF r2 = new RectangleF(t.X, r.Bottom, t.Width, t.Bottom - r.Bottom);
* freeRectangles.Add(r2);
* }
* break;
*
* case PortPlacement.Top:
* case PortPlacement.Bottom:
* if (t.X < r.X)
* {
* // first r
* RectangleF r1 = new RectangleF(t.X, t.Y, r.X-t.X, t.Height);
* freeRectangles.Add(r1);
* }
*
* if (r.Right < t.Right)
* {
* // second r
* RectangleF r2 = new RectangleF(r.Right, t.Y, t.Right-r.Right, t.Height);
* freeRectangles.Add(r2);
* }
* break;
* }
*
* }
* }
* }
*
* // try to place at a fitting free rectangle
* foreach (RectangleF r in freeRectangles)
* {
* if (r.Width >= this.Bounds.Width && r.Height >= this.Bounds.Height)
* {
* this.Location = new PointD(r.X, r.Y);
* this.PlacementSide = side;
* this.UpdateAbsoluteLocation();
* return true;
* }
* }
*
* return false;
* }
*/
/// <summary>
/// Create missing shapes.
/// </summary>
public virtual void FixUpMissingShapes()
{
if (this.Element == null)
{
return;
}
DomainModelElement e = this.Element as DomainModelElement;
IDomainModelServices topMost = e.GetDomainModelServices().TopMostService;
DiagramDomainDataDirectory data = this.Store.DomainDataAdvDirectory.ResolveExtensionDirectory <DiagramDomainDataDirectory>();
List <EmbeddingRelationshipAdvancedInfo> infos = this.Store.DomainDataAdvDirectory.FindDomainClassSourceEmbeddings(e.GetDomainClassId());
if (infos != null)
{
foreach (EmbeddingRelationshipAdvancedInfo info in infos)
{
List <Guid> shapes = data.GetShapeTypesForElement(info.TargetElementDomainClassId);
if (shapes == null)
{
continue;
}
if (shapes.Count == 0)
{
continue;
}
ReadOnlyCollection <ElementLink> instances = DomainRoleInfo.GetElementLinks <ElementLink>(this.Element, info.SourceRoleId);
foreach (ElementLink link in instances)
{
DomainModelElement child = DomainRoleInfo.GetTargetRolePlayer(link) as DomainModelElement;
if (child == null)
{
continue;
}
// see if we need to add shape
foreach (Guid elementShapeId in data.GetShapeTypesForElement(child.GetDomainClassId(), this.GetDomainClassId()))
{
if (!DiagramHelper.IsElementDisplayedOn(this, elementShapeId, child.Id))
{
NodeShape shape = topMost.ShapeProvider.CreateShapeForElement(elementShapeId, child) as NodeShape;
if (shape.IsRelativeChildShape)
{
this.AddRelativeChild(shape);
}
else
{
this.AddNestedChild(shape);
}
shape.FixUpMissingShapes();
}
}
}
}
}
}
public override void ElementAdded(ElementAddedEventArgs e)
{
NodeShape nodeShape = e.ModelElement as NodeShape;
if (nodeShape != null)
{
//nodeShape.FixUpMissingLinkShapes();
}
}
private static void UpdateAbsoluteLocation(NodeShape shapeElement)
{
shapeElement.UpdateAbsoluteLocation();
foreach (NodeShape shape in shapeElement.Children)
{
UpdateAbsoluteLocation(shape);
}
}
public static void ApplyLayout(NodeShape shapeElement, Diagram diagram, LayoutInfo layout)
{
// apply layout
shapeElement.Size = layout.Size;
// children
foreach (NodeShape shape in shapeElement.Children)
{
ProcessNodeShape(shape, layout.ChildrenInfos);
}
RestoreLinkShapes(diagram, layout.LinkShapeInfos);
}
/// <summary>
/// Called whenever a model element is added to the store.
/// </summary>
/// <param name="sender">ViewModelStore</param>
/// <param name="args">Event Arguments for notification of the creation of new model element.</param>
private void OnElementAdded(object sender, ElementAddedEventArgs args)
{
if (!ModelData.DoSendModelEvents)
{
return;
}
// update shape mapping (this is required, becauso undo/redo does not trigger events)
if (args.ModelElement is DiagramHasChildren)
{
DiagramHasChildren con = args.ModelElement as DiagramHasChildren;
if (con != null)
{
NodeShape nodeShape = con.ChildShape;
Diagram diagram = con.Diagram;
if (nodeShape != null && diagram != null)
{
if (nodeShape.IsDeleted)
{
return;
}
diagram.AddToShapeMapping(nodeShape);
}
}
}
else if (args.ModelElement is ShapeElementContainsChildShapes)
{
ShapeElementContainsChildShapes con = args.ModelElement as ShapeElementContainsChildShapes;
if (con != null)
{
NodeShape childShape = con.ChildShape;
NodeShape parentShape = con.ParentShape;
if (childShape != null && parentShape != null)
{
if (childShape.IsDeleted)
{
return;
}
if (parentShape.IsDeleted)
{
return;
}
parentShape.AddToShapeMapping(childShape);
}
}
}
}
public override void RolePlayerChanged(RolePlayerChangedEventArgs e)
{
ShapeElementContainsChildShapes con = e.ElementLink as ShapeElementContainsChildShapes;
if (con == null)
{
return;
}
if (e.DomainRole.Id == ShapeElementContainsChildShapes.DomainClassId)
{
NodeShape childShape = con.ChildShape;
NodeShape parentShapeOld = e.OldRolePlayer as NodeShape;
NodeShape parentShapeNew = e.NewRolePlayer as NodeShape;
// delete from old parent shape
if (childShape != null && parentShapeOld != null)
{
if (childShape.IsDeleted)
{
return;
}
parentShapeOld.RemoveFromShapeMapping(childShape);
}
// add to new parent shape
if (childShape != null && parentShapeNew != null)
{
if (childShape.IsDeleted)
{
return;
}
parentShapeNew.AddToShapeMapping(childShape);
if (childShape.IsRelativeChildShape && childShape.MovementBehaviour == ShapeMovementBehaviour.PositionOnEdgeOfParent)
{
childShape.CorrectLocation();
}
if (!childShape.IsRelativeChildShape)
{
childShape.ResizeParentIfRequired();
}
}
}
}
/// <summary>
/// Searches for the shape of a specific type hosting a specific element.
/// </summary>
/// <param name="store">Store.</param>
/// <param name="shapeDomainClassType">Type of the shape.</param>
/// <param name="elementId">Model element Id.</param>
/// <returns>NodeShape if found. Null otherwise.</returns>
public static NodeShape FindChildShape(NodeShape parentShape, Guid childShapeDomainClassType, Guid childId)
{
foreach (NodeShape shape in parentShape.Children)
{
if (shape.GetDomainClass().IsDerivedFrom(childShapeDomainClassType) && shape.Element != null)
{
if (shape.Element.Id == childId)
{
return(shape);
}
}
}
return(null);
}
/// <summary>
/// Verifies if a specific model element is already displayed as a child of the specific shape.
/// </summary>
/// <param name="parentShape">Parent shape.</param>
/// <param name="childShapeDomainClassType">Type of the child shape.</param>
/// <param name="childId">Id of the child element.</param>
/// <returns>True of the child is hosted on the parent element (shapewise). False otherwise.</returns>
public static bool IsElementDisplayedOn(NodeShape parentShape, Guid childShapeDomainClassType, Guid childId)
{
foreach (NodeShape shape in parentShape.Children)
{
if (shape.GetDomainClass().IsDerivedFrom(childShapeDomainClassType) && shape.Element != null)
{
if (shape.Element.Id == childId)
{
return(true);
}
}
}
return(false);
}
private static NodeShapeInfo CreateNodeShapeInfo(NodeShape shapeElement, List<NodeShape> allShapes)
{
NodeShapeInfo info = new NodeShapeInfo(shapeElement.Store);
info.ElementId = shapeElement.Element.Id;
info.Size = shapeElement.Size;
info.RelativeLocation = shapeElement.Location;
foreach (NodeShape shape in shapeElement.Children)
{
allShapes.Add(shape);
info.ChildrenInfos.Add(CreateNodeShapeInfo(shape, allShapes));
}
return info;
}
public static DiagramsModel GetDiagramsModel(NodeShape shapeElement)
{
Diagram d = shapeElement.Diagram;
while (d != null)
{
if (d.DiagramsModel != null)
{
return(d.DiagramsModel);
}
d = d.ParentDiagram;
}
throw new InvalidOperationException("GetDiagramsModel: Could not find DiagramsModel!");
}
private static NodeShapeInfo CreateNodeShapeInfo(NodeShape shapeElement, List <NodeShape> allShapes)
{
NodeShapeInfo info = new NodeShapeInfo(shapeElement.Store);
info.ElementId = shapeElement.Element.Id;
info.Size = shapeElement.Size;
info.RelativeLocation = shapeElement.Location;
foreach (NodeShape shape in shapeElement.Children)
{
allShapes.Add(shape);
info.ChildrenInfos.Add(CreateNodeShapeInfo(shape, allShapes));
}
return(info);
}
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>
/// Called whenever a child element is deleted.
/// </summary>
/// <param name="e"></param>
public override void ElementDeleted(ElementDeletedEventArgs e)
{
base.ElementDeleted(e);
DiagramHasChildren con = e.ModelElement as DiagramHasChildren;
if (con != null)
{
NodeShape nodeShape = con.ChildShape;
Diagram diagram = con.Diagram;
if (nodeShape != null && diagram != null)
{
diagram.RemoveFromShapeMapping(nodeShape);
}
}
}
public override void ElementDeleted(ElementDeletedEventArgs e)
{
base.ElementDeleted(e);
ShapeElementContainsChildShapes con = e.ModelElement as ShapeElementContainsChildShapes;
if (con != null)
{
NodeShape childShape = con.ChildShape;
NodeShape parentShape = con.ParentShape;
if (childShape != null && parentShape != null)
{
parentShape.RemoveFromShapeMapping(childShape);
}
}
}
/// <summary>
/// Updates the absolute location of this shape and its child shapes.
/// </summary>
internal void UpdateAbsoluteLocation()
{
PointD location = new PointD(0, 0);
NodeShape shape = this;
while (shape != null)
{
location.X += shape.Location.X;
location.Y += shape.Location.Y;
shape = shape.Parent;
}
PointD oldAbsoluteLocation = this.AbsoluteLocation;
UpdateAbsoluteLocation(location.X - this.AbsoluteLocation.X, location.Y - this.AbsoluteLocation.Y);
}
/// <summary>
/// Adds shapes for a given element.
/// </summary>
/// <param name="parent">Model element.</param>
/// <param name="child"></param>
internal void AddShapesForElement(DomainModelElement parent, DomainModelElement child)
{
if (parent == null || child == null)
{
return;
}
DiagramDomainDataDirectory data = child.Store.DomainDataAdvDirectory.ResolveExtensionDirectory <DiagramDomainDataDirectory>();
IDomainModelServices topMost = child.GetDomainModelServices().TopMostService;
// find parent shapes
List <Guid> shapeIds = DiagramsShapeStore.GetFromStore(parent.Id);
if (shapeIds != null)
{
foreach (Guid shapeId in shapeIds)
{
// see if each parent shape has a child shape already added to it
NodeShape parentShape = child.Store.ElementDirectory.FindElement(shapeId) as NodeShape;
if (parentShape == null)
{
continue;
}
foreach (Guid elementShapeId in data.GetShapeTypesForElement(child.GetDomainClassId(), parentShape.GetDomainClassId()))
{
if (!DiagramHelper.IsElementDisplayedOn(parentShape, elementShapeId, child.Id))
{
NodeShape shape = topMost.ShapeProvider.CreateShapeForElement(elementShapeId, child) as NodeShape;
if (shape.IsRelativeChildShape)
{
parentShape.AddRelativeChild(shape);
}
else
{
parentShape.AddNestedChild(shape);
}
shape.SetAtFreePositionOnParent();
}
}
}
}
//AddRootShapesForElement(child, false);
AddRootShapesForElement(child);
}
public static LayoutInfo CreateLayoutInfo(NodeShape shapeElement, Diagram diagram)
{
// create new layout
List<NodeShape> allShapes = new List<NodeShape>();
LayoutInfo l = new LayoutInfo(shapeElement.Store);
l.HostElementId = shapeElement.Element.Id;
l.Size = shapeElement.Size;
foreach (NodeShape shape in shapeElement.Children)
{
allShapes.Add(shape);
l.ChildrenInfos.Add(CreateNodeShapeInfo(shape, allShapes));
}
ProcessDiagramsLinkShapes(diagram, allShapes, l);
return l;
}
public void DeleteShapesForElement(DomainModelElement modelElement)
{
if (modelElement != null)
{
List <Guid> shapes = DiagramsShapeStore.GetFromStore(modelElement.Id);
if (shapes != null)
{
for (int i = shapes.Count - 1; i >= 0; i--)
{
NodeShape shape = modelElement.Store.ElementDirectory.FindElement(shapes[i]) as NodeShape;
if (shape != null)
{
shape.Delete();
}
}
}
}
}
public static LayoutInfo CreateLayoutInfo(NodeShape shapeElement, Diagram diagram)
{
// create new layout
List <NodeShape> allShapes = new List <NodeShape>();
LayoutInfo l = new LayoutInfo(shapeElement.Store);
l.HostElementId = shapeElement.Element.Id;
l.Size = shapeElement.Size;
foreach (NodeShape shape in shapeElement.Children)
{
allShapes.Add(shape);
l.ChildrenInfos.Add(CreateNodeShapeInfo(shape, allShapes));
}
ProcessDiagramsLinkShapes(diagram, allShapes, l);
return(l);
}
public override void ElementAdded(ElementAddedEventArgs e)
{
NodeShapeReferencesNestedChildren con = e.ModelElement as NodeShapeReferencesNestedChildren;
if (con != null)
{
NodeShape childShape = con.ChildShape;
NodeShape parentShape = con.ParentShape;
if (childShape != null && parentShape != null)
{
childShape.ResizeParentIfRequired();
}
else
{
con.Delete();
}
}
}
public static void SaveLayout(NodeShape shapeElement, Diagram diagram)
{
DiagramsModel model = GetDiagramsModel(shapeElement);
// see if there is already a layout for the given shape element
foreach (LayoutInfo layout in model.LayoutInfos)
if (layout.HostElementId == shapeElement.Element.Id)
{
// delete existing layout
model.LayoutInfos.Remove(layout);
break;
}
// create new layout
List<NodeShape> allShapes = new List<NodeShape>();
LayoutInfo l = CreateLayoutInfo(shapeElement, diagram);
model.LayoutInfos.Add(l);
}
public static bool RestoreLayout(NodeShape shapeElement, Diagram diagram)
{
DiagramsModel model = GetDiagramsModel(shapeElement);
foreach (LayoutInfo layout in model.LayoutInfos)
{
if (layout.HostElementId == shapeElement.Element.Id)
{
// apply layout
ApplyLayout(shapeElement, diagram, layout);
return(true);
}
}
Tum.PDE.ToolFramework.Modeling.Diagrams.Layout.GleeLayouter.Layout(shapeElement);
return(false);
}
public virtual void AddRSShapesForElement(DomainModelElement sourceElement, DomainModelElement targetElement, ModelElement con, Guid shapeType)
{
List <Guid> shapeIdsSource = DiagramsShapeStore.GetFromStore(sourceElement.Id);
List <Guid> shapeIdsTarget = DiagramsShapeStore.GetFromStore(targetElement.Id);
if (shapeIdsSource == null || shapeIdsTarget == null)
{
return;
}
if (shapeIdsSource.Count == 0 || shapeIdsTarget.Count == 0)
{
return;
}
IDomainModelServices topMost = sourceElement.GetDomainModelServices().TopMostService;
foreach (Guid sourceShapeId in shapeIdsSource)
{
NodeShape sourceShape = con.Store.ElementDirectory.FindElement(sourceShapeId) as NodeShape;
if (sourceShape == null)
{
continue;
}
foreach (Guid targetShapeId in shapeIdsTarget)
{
NodeShape targetShape = con.Store.ElementDirectory.FindElement(targetShapeId) as NodeShape;
if (targetShape != null)
{
if (sourceShape.Diagram == targetShape.Diagram)
{
if (!DiagramHelper.IsLinkDisplayedOn(sourceShape.Diagram, shapeType, con.Id, sourceShape.Id, targetShape.Id))
{
LinkShape shape = topMost.ShapeProvider.CreateShapeForElementLink(shapeType, con, sourceShape, targetShape) as LinkShape;
sourceShape.Diagram.LinkShapes.Add(shape);
shape.Layout(FixedGeometryPoints.None);
}
}
}
}
}
}
public static void SaveLayout(NodeShape shapeElement, Diagram diagram)
{
DiagramsModel model = GetDiagramsModel(shapeElement);
// see if there is already a layout for the given shape element
foreach (LayoutInfo layout in model.LayoutInfos)
{
if (layout.HostElementId == shapeElement.Element.Id)
{
// delete existing layout
model.LayoutInfos.Remove(layout);
break;
}
}
// create new layout
List <NodeShape> allShapes = new List <NodeShape>();
LayoutInfo l = CreateLayoutInfo(shapeElement, diagram);
model.LayoutInfos.Add(l);
}
public static void SetMainShape(GraphicalDependencyLinkShape element, NodeShape newNodeShape)
{
DslModeling::DomainRoleInfo.SetLinkedElement(element, GraphicalDependencyLinkShapeDomainRoleId, newNodeShape);
}
public static GraphicalDependenciesDiagram GetGraphicalDependenciesDiagram(NodeShape element)
{
return DslModeling::DomainRoleInfo.GetLinkedElement(element, NodeShapeDomainRoleId) as GraphicalDependenciesDiagram;
}
/// <summary>
/// Constructor
/// Creates a GraphicalDependenciesDiagramReferencesMainElementShape link in the same Partition as the given GraphicalDependenciesDiagram
/// </summary>
/// <param name="source">GraphicalDependenciesDiagram to use as the source of the relationship.</param>
/// <param name="target">NodeShape to use as the target of the relationship.</param>
public GraphicalDependenciesDiagramReferencesMainElementShape(GraphicalDependenciesDiagram source, NodeShape target)
: base((source != null ? source.Partition : null), new DslModeling::RoleAssignment[]{new DslModeling::RoleAssignment(GraphicalDependenciesDiagramReferencesMainElementShape.GraphicalDependenciesDiagramDomainRoleId, source), new DslModeling::RoleAssignment(GraphicalDependenciesDiagramReferencesMainElementShape.NodeShapeDomainRoleId, target)}, null)
{
}
/// <summary>
/// Calculates a path geometry between the source and the target point.
/// </summary>
/// <param name="proposedSourcePoint">Source point (Absolute location).</param>
/// <param name="targetShape">Target shape.</param>
/// <param name="proposedTargetPoint">Target point (Absolute location).</param>
/// <param name="fixedPoints">Fixed points.</param>
/// <returns>Calculated path geometry.</returns>
public virtual List<PointD> CalcPath(PointD proposedSourcePoint, NodeShape targetShape, PointD proposedTargetPoint, FixedGeometryPoints fixedPoints)
{
PointD sourcePoint = proposedSourcePoint;
PointD targetPoint = proposedTargetPoint;
if (fixedPoints != FixedGeometryPoints.SourceAndTarget &&
fixedPoints != FixedGeometryPoints.Source)
{
// calculate allowed source position
// TODO
}
if (fixedPoints != FixedGeometryPoints.SourceAndTarget &&
fixedPoints != FixedGeometryPoints.Target)
{
// calculate allowed target position
targetPoint = CalculateAllowedPosition(targetShape, proposedTargetPoint);
}
List<PointD> edgePoints = CalculatePath(sourcePoint, targetPoint);
return edgePoints;
}
/// <summary>
/// This function corrects the given proposed location if the given child shape is a relative shape and
/// is only allowed to be placed on the edge of its parent.
/// </summary>
/// <param name="parentShape">Parent shape.</param>
/// <param name="childShape">Child shape.</param>
/// <param name="proposedLocation">Proposed location.</param>
/// <remarks>
/// This function needs to be called withing a modeling transaction.
///
/// This function assigns new values to Location and PortPlacement if necessary.
/// </remarks>
/// <returns>
/// Location that was assigned to the shape. It might have the same value as the location
/// the shape had before calling this function.
/// </returns>
public static PointD CorrectPortLocation(NodeShape parentShape, NodeShape childShape, PointD proposedLocation)
{
if (parentShape == null)
throw new ArgumentNullException("parentShape");
if (childShape == null)
throw new ArgumentNullException("childShape");
if (!childShape.IsRelativeChildShape || childShape.MovementBehaviour != ShapeMovementBehaviour.PositionOnEdgeOfParent)
return proposedLocation;
RectangleD rectParent = parentShape.Bounds;
RectangleD proposedBounds = new RectangleD(proposedLocation, childShape.Size);
PortPlacement placement = NodeShape.GetPortPlacement(rectParent, proposedBounds);
return CorrectPortLocation(placement, parentShape, childShape, proposedLocation);
}
public GraphicalDependencyItemViewModel(ViewModelStore viewModelStore, GraphicalDependenciesViewModel diagram, NodeShape shapeElement)
: base(viewModelStore, diagram, shapeElement)
{
}
private static void ProcessNodeShape(NodeShape shapeElement, LinkedElementCollection<NodeShapeInfo> infos)
{
// try to find NodeShapeInfo for shape element
NodeShapeInfo info = null;
foreach (NodeShapeInfo i in infos)
{
if (i.ElementId == shapeElement.Element.Id)
{
info = i;
break;
}
}
if (info == null)
{
shapeElement.UpdateAbsoluteLocation();
return;
}
shapeElement.Size = info.Size;
shapeElement.SetLocation(info.RelativeLocation);
// children
foreach (NodeShape shape in shapeElement.Children)
{
ProcessNodeShape(shape, info.ChildrenInfos);
}
}
public static DslModeling::LinkedElementCollection<GraphicalDependencyLinkShape> GetLinkShape(NodeShape element)
{
return GetRoleCollection<DslModeling::LinkedElementCollection<GraphicalDependencyLinkShape>, GraphicalDependencyLinkShape>(element, NodeShapeDomainRoleId);
}
/// <summary>
/// Constructor
/// Creates a ShapeElementContainsChildShapes link in the same Partition as the given NodeShape
/// </summary>
/// <param name="source">NodeShape to use as the source of the relationship.</param>
/// <param name="target">NodeShape to use as the target of the relationship.</param>
public ShapeElementContainsChildShapes(NodeShape source, NodeShape target)
: base((source != null ? source.Partition : null), new DslModeling::RoleAssignment[]{new DslModeling::RoleAssignment(ShapeElementContainsChildShapes.ParentShapeDomainRoleId, source), new DslModeling::RoleAssignment(ShapeElementContainsChildShapes.ChildShapeDomainRoleId, target)}, null)
{
}
/// <summary>
/// Adds a nested child.
/// </summary>
/// <param name="shape">Shape to add as a nested child.</param>
public void AddNestedChild(NodeShape shape)
{
this.InternalChildren.Add(shape);
this.NestedChildren.Add(shape);
}
/// <summary>
/// Adds a relative child.
/// </summary>
/// <param name="shape">Shape to add as a relative child.</param>
public void AddRelativeChild(NodeShape shape)
{
this.InternalChildren.Add(shape);
this.RelativeChildren.Add(shape);
}
public static DiagramsModel GetDiagramsModel(NodeShape shapeElement)
{
Diagram d = shapeElement.Diagram;
while(d != null)
{
if( d.DiagramsModel != null )
return d.DiagramsModel;
d = d.ParentDiagram;
}
throw new InvalidOperationException("GetDiagramsModel: Could not find DiagramsModel!");
}
/// <summary>
/// Calculates an allowed position based on the given proposed position. The Idea behind this is
/// to correct the proposed position if we are within an target elements border.
/// </summary>
/// <param name="targetShape">Target shape.</param>
/// <param name="proposedPosition">Proposed position.</param>
/// <returns>Corrected position.</returns>
public virtual PointD CalculateAllowedPosition(NodeShape targetShape, PointD proposedPosition)
{
PointD position = proposedPosition;
RectangleD absoluteBounds = targetShape.AbsoluteBounds;
if (position.Y > absoluteBounds.Top - ConnectorHeight && position.Y < absoluteBounds.Top + ConnectorHeight)
{
position.Y = absoluteBounds.Top;
}
else if (position.Y > absoluteBounds.Bottom - ConnectorHeight && position.Y < absoluteBounds.Bottom + ConnectorHeight)
{
position.Y = absoluteBounds.Bottom;
}
if (position.X > absoluteBounds.Left - ConnectorWidth && position.X < absoluteBounds.Left + ConnectorWidth)
{
position.X = absoluteBounds.Left;
}
else if (position.X > absoluteBounds.Right - ConnectorWidth && position.X < absoluteBounds.Right + ConnectorWidth)
{
position.X = absoluteBounds.Right;
}
return position;
}
/// <summary>
/// Creates missing links for the added shape.
/// </summary>
/// <param name="shapeAdded">Shape added.</param>
public virtual void FixUpMissingLinkShapes(NodeShape shapeAdded)
{
DiagramDomainDataDirectory data = this.Store.DomainDataAdvDirectory.ResolveExtensionDirectory<DiagramDomainDataDirectory>();
if (data == null)
throw new ArgumentNullException("DiagramDomainDataDirectory can not be null");
ShapeClassInfo info;
data.ShapeClassInfos.TryGetValue(shapeAdded.GetDomainClass().Id, out info);
if (info == null)
return;
ModelLinkAddRuleForRSShapes.RSShapesFactoryHelper factory = this.GetRSShapesFactoryHelper();
ModelLinkAddRuleForMappingRSShapes.RSShapesFactoryHelper factoryMapping = this.GetMappingRSShapesFactoryHelper();
if (factory != null)
{
if (info.RelationshipSourceRoleTypes.Count > 0)
foreach (Guid rel in info.RelationshipSourceRoleTypes)
{
ReadOnlyCollection<DomainModelLink> links = DomainRoleInfo.GetElementLinks<DomainModelLink>(shapeAdded.Element, rel);
foreach (DomainModelLink link in links)
factory.AddRSShapesForElement(link);
}
if (info.RelationshipTargetRoleTypes.Count > 0)
foreach (Guid rel in info.RelationshipTargetRoleTypes)
{
ReadOnlyCollection<DomainModelLink> links = DomainRoleInfo.GetElementLinks<DomainModelLink>(shapeAdded.Element, rel);
foreach (DomainModelLink link in links)
factory.AddRSShapesForElement(link);
}
}
if (factoryMapping != null)
{
if (info.MappingRelationshipSourceRoleTypes.Count > 0)
foreach (Guid rel in info.MappingRelationshipSourceRoleTypes)
{
ReadOnlyCollection<DomainModelLink> links = DomainRoleInfo.GetElementLinks<DomainModelLink>(shapeAdded.Element, rel);
foreach (DomainModelLink link in links)
factoryMapping.AddRSShapesForElement(link);
}
if (info.MappingRelationshipTargetRoleTypes.Count > 0)
foreach (Guid rel in info.MappingRelationshipTargetRoleTypes)
{
ReadOnlyCollection<DomainModelLink> links = DomainRoleInfo.GetElementLinks<DomainModelLink>(shapeAdded.Element, rel);
foreach (DomainModelLink link in links)
factoryMapping.AddRSShapesForElement(link);
}
}
foreach (Diagram d in this.IncludedDiagrams)
d.FixUpMissingLinkShapes(shapeAdded);
foreach(NodeShape s in shapeAdded.Children)
s.FixUpMissingLinkShapes();
}
protected DiagramItemElementViewModel(ViewModelStore viewModelStore, DiagramSurfaceViewModel diagram, NodeShape shapeElement)
: base(viewModelStore, diagram, shapeElement)
{
}
public static void SetMainElementShape(GraphicalDependenciesDiagram element, NodeShape newNodeShape)
{
DslModeling::DomainRoleInfo.SetLinkedElement(element, GraphicalDependenciesDiagramDomainRoleId, newNodeShape);
}
/// <summary>
/// Constructor
/// Creates a DiagramHasChildren link in the same Partition as the given Diagram
/// </summary>
/// <param name="source">Diagram to use as the source of the relationship.</param>
/// <param name="target">NodeShape to use as the target of the relationship.</param>
public DiagramHasChildren(Diagram source, NodeShape target)
: base((source != null ? source.Partition : null), new DslModeling::RoleAssignment[]{new DslModeling::RoleAssignment(DiagramHasChildren.DiagramDomainRoleId, source), new DslModeling::RoleAssignment(DiagramHasChildren.ChildShapeDomainRoleId, target)}, null)
{
}
public static void SetGraphicalDependenciesDiagram(NodeShape element, GraphicalDependenciesDiagram newGraphicalDependenciesDiagram)
{
DslModeling::DomainRoleInfo.SetLinkedElement(element, NodeShapeDomainRoleId, newGraphicalDependenciesDiagram);
}
public static bool RestoreLayout(NodeShape shapeElement, Diagram diagram)
{
DiagramsModel model = GetDiagramsModel(shapeElement);
foreach (LayoutInfo layout in model.LayoutInfos)
if (layout.HostElementId == shapeElement.Element.Id)
{
// apply layout
ApplyLayout(shapeElement, diagram, layout);
return true;
}
Tum.PDE.ToolFramework.Modeling.Diagrams.Layout.GleeLayouter.Layout(shapeElement);
return false;
}
/// <summary>
/// This function corrects the given proposed location if the given child shape is a relative shape and
/// is only allowed to be placed on the edge of its parent.
/// </summary>
/// <param name="placement">Proposed placement.</param>
/// <param name="parentShape">Parent shape.</param>
/// <param name="childShape">Child shape.</param>
/// <param name="proposedLocation">Proposed location.</param>
/// <remarks>
/// This function needs to be called withing a modeling transaction.
///
/// This function assigns new values to Location and PortPlacement if necessary.
/// </remarks>
/// <returns>
/// Location that was assigned to the shape. It might have the same value as the location
/// the shape had before calling this function.
/// </returns>
public static PointD CorrectPortLocation(PortPlacement placement, NodeShape parentShape, NodeShape childShape, PointD proposedLocation)
{
PointD newLocation = proposedLocation;
RectangleD rectParent = parentShape.Bounds;
switch (placement)
{
case PortPlacement.Left:
newLocation.X = -childShape.Size.Width / 2.0;
if (newLocation.Y < 0.0)
newLocation.Y = 0.0;
else if (newLocation.Y > (rectParent.Height - childShape.Size.Height))
newLocation.Y = rectParent.Height - childShape.Size.Height;
break;
case PortPlacement.Top:
newLocation.Y = -childShape.Size.Height / 2.0;
if (newLocation.X < 0.0)
newLocation.X = 0.0;
else if (newLocation.X > (rectParent.Width - childShape.Size.Width))
newLocation.X = rectParent.Width - childShape.Size.Width;
break;
case PortPlacement.Right:
newLocation.X = rectParent.Width - (childShape.Size.Width / 2.0);
if (newLocation.Y < 0.0)
newLocation.Y = 0.0;
else if (newLocation.Y > (rectParent.Height - childShape.Size.Height))
newLocation.Y = rectParent.Height - childShape.Size.Height;
break;
case PortPlacement.Bottom:
newLocation.Y = rectParent.Height - (childShape.Size.Height / 2.0);
if (newLocation.X < 0.0)
newLocation.X = 0.0;
else if (newLocation.X > (rectParent.Width - childShape.Size.Width))
newLocation.X = rectParent.Width - childShape.Size.Width;
break;
}
if (childShape.Location != newLocation)
{
childShape.Location = newLocation;
childShape.PlacementSide = placement;
childShape.UpdateAbsoluteLocation();
}
return newLocation;
}
private static void UpdateAbsoluteLocation(NodeShape shapeElement)
{
shapeElement.UpdateAbsoluteLocation();
foreach (NodeShape shape in shapeElement.Children)
{
UpdateAbsoluteLocation(shape);
}
}
internal static void SetInternalDiagram(NodeShape element, Diagram newDiagram)
{
DslModeling::DomainRoleInfo.SetLinkedElement(element, ChildShapeDomainRoleId, newDiagram);
}
internal static Diagram GetInternalDiagram(NodeShape element)
{
return DslModeling::DomainRoleInfo.GetLinkedElement(element, ChildShapeDomainRoleId) as Diagram;
}
/// <summary>
/// Verifies if the given node shape is already displayed as a child of this view model.
/// </summary>
/// <param name="nodeShape">Node shape to find.</param>
/// <returns>True if the given element is already displayed as a child of this view model. False otherwise</returns>
public bool IsDisplayingNodeShape(NodeShape nodeShape)
{
foreach (BaseDiagramItemElementViewModel vm in this.NestedChildren)
if (vm.ShapeElement.Id == nodeShape.Id)
return true;
foreach (BaseDiagramItemElementViewModel vm in this.RelativeChildren)
if (vm.ShapeElement.Id == nodeShape.Id)
return true;
return false;
}
public static void ApplyLayout(NodeShape shapeElement, Diagram diagram, LayoutInfo layout)
{
// apply layout
shapeElement.Size = layout.Size;
// children
foreach (NodeShape shape in shapeElement.Children)
{
ProcessNodeShape(shape, layout.ChildrenInfos);
}
RestoreLinkShapes(diagram, layout.LinkShapeInfos);
}
/// <summary> /// Creates the view model for the given node shape. /// </summary> /// <param name="nodeShapeType">Shape type for which the view model is to be created.</param> /// <param name="diagram">Diagram surface vm.</param> /// <param name="nodeShape">Node shape.</param> /// <returns> /// View model of type DiagramItemElementViewModel if a view model can be created for the given element. Null otherwise.</returns> public abstract DiagramItemElementViewModel CreateDiagramItemViewModel(Guid nodeShapeType, DiagramSurfaceViewModel diagram, NodeShape nodeShape);