private void DragEdgeEdit(Point delta)
{
EdgeRestoreData edgeRestoreData = CurrentUndoAction.GetRestoreData(this.EditedEdge) as EdgeRestoreData;
DragEdgeWithSite(delta, EditedEdge, edgeRestoreData, edgeRestoreData.Site,
edgeRestoreData.InitialSitePosition);
}
Rectangle GetUpdatedRegionAndCleanUpAffectedObjects()
{
Rectangle rect = Rectangle.CreateAnEmptyBox();
var affectedObjectList = new List <IViewerObject>(CurrentUndoAction.AffectedObjects);
foreach (var ivObj in affectedObjectList)
{
var inode = ivObj as IViewerNode;
if (inode == null)
{
continue;
}
var node = (GeomNode)inode.DrawingObject.GeometryObject;
NodeRestoreData nrd = (NodeRestoreData)CurrentUndoAction.GetRestoreData(node);
var oldBoundingBox = nrd.BoundaryCurve.BoundingBox;
if (!oldBoundingBox.Equals(node.BoundingBox))
{
rect.Add(node.BoundingBox);
rect.Add(oldBoundingBox);
}
else
{
CurrentUndoAction.RemoveAffectedObject(ivObj);
}
}
foreach (var e in edgesDraggedWithSource.Concat(edgesDraggedWithTarget))
{
rect.Add(e.BoundingBox);
}
rect.Pad(layoutSettings.EdgeRoutingSettings.Padding);
return(rect);
}
/// <summary>
///
/// </summary>
/// <param name="changedClusters"></param>
public void PrepareForClusterCollapseChange(IEnumerable <IViewerNode> changedClusters)
{
InsertToListAndSetTheBoxBefore(new ClustersCollapseExpandUndoRedoAction(graph));
foreach (var iCluster in changedClusters)
{
CurrentUndoAction.AddAffectedObject(iCluster);
}
}
/// <summary>
/// deletes the polyline corner
/// </summary>
/// <param name="edge"></param>
/// <param name="site"></param>
/// <param name="userData">an object to be stored in the unde action</param>
public void DeleteSite(GeomEdge edge, Site site, object userData)
{
this.EditedEdge = edge;
PrepareForPolylineCornerRemoval(userData, site);
site.Previous.Next = site.Next;//removing the site from the list
site.Next.Previous = site.Previous;
//just to recalc everything in a correct way
DragEdgeWithSite(new Point(0, 0), edge, CurrentUndoAction.GetRestoreData(edge) as EdgeRestoreData, site.Previous, site.Previous.Point);
}
private void DragEdgesWithSource(Point delta)
{
foreach (GeomEdge edge in this.edgesDraggedForTheSource)
{
EdgeRestoreData edgeRestoreData = CurrentUndoAction.GetRestoreData(edge) as EdgeRestoreData;
DragEdgeWithSource(delta, edge, edgeRestoreData);
UpdateGraphBoundingBoxWithCheck(edge);
}
}
/// <summary>
/// insert a polyline corner
/// </summary>
/// <param name="edge"></param>
/// <param name="point">the point to insert the corner</param>
/// <param name="siteBeforeInsertion"></param>
///<param name="affectedEntity">an object to be stored in the undo action</param>
public void InsertSite(GeomEdge edge, Point point, Site siteBeforeInsertion, object affectedEntity)
{
this.EditedEdge = edge;
//creating the new site
Site first = siteBeforeInsertion;
Site second = first.Next;
Site s = new Site(first, point, second);
PrepareForPolylineCornerInsertion(affectedEntity, s);
//just to recalc everything in a correct way
DragEdgeWithSite(new Point(0, 0), edge, CurrentUndoAction.GetRestoreData(edge) as EdgeRestoreData, s, point);
}
/// <summary>
/// drags elements by the delta
/// </summary>
/// <param name="delta"></param>
public void Drag(Point delta)
{
GraphBoundingBoxGetsExtended = false;
if (delta.X != 0 || delta.Y != 0)
{
if (EditedEdge == null)
{
foreach (GeometryObject geomObj in objectsToDrag)
{
GeomNode node = geomObj as GeomNode;
if (node != null)
{
DragNode(node, delta, CurrentUndoAction.GetRestoreData(node) as NodeRestoreData);
}
else
{
GeomEdge edge = geomObj as GeomEdge;
if (edge != null)
{
TranslateEdge(edge, delta, CurrentUndoAction.GetRestoreData(edge) as EdgeRestoreData);
}
else
{
GeomLabel label = geomObj as GeomLabel;
if (label != null)
{
DragLabel(label, delta, (CurrentUndoAction.GetRestoreData(label) as LabelRestoreData).Center);
}
else
{
throw new NotImplementedException();
}
}
}
UpdateGraphBoundingBoxWithCheck(geomObj);
}
DragEdgesWithSource(delta);
DragEdgesWithTarget(delta);
}
else if (EditedEdge != null)
{
DragEdgeEdit(delta);
UpdateGraphBoundingBoxWithCheck(EditedEdge);
}
}
}