/// <summary>
/// Returns a list of relations, that are known in RelationCosmos and pointing to
/// the relation provided.
/// </summary>
/// <param name="relation">The object implementing RelationBase</param>
/// <param name="excludeRelations">List of relations,
/// that should be excluded in that check</param>
/// <returns>RelationList</returns>
public RelationList GetIncoming(RelationBase relation, IList excludeRelations)
{
if (relation == null || relation.HRef == null)
{
return(RelationCosmos.emptyRelationList);
}
lock (syncRoot) {
try {
if (excludeRelations == null)
{
excludeRelations = (IList)RelationCosmos.emptyRelationList;
}
// check incoming:
RelationList list = registeredIncomingRelations[relation.HRef];
if (list != null && list.Count > 0)
{
RelationList returnList = new RelationList(list.Count);
foreach (RelationBase r in list)
{
if (r != relation && !excludeRelations.Contains(r))
{
returnList.Add(r);
}
}
return(returnList);
}
} catch (Exception ex) {
System.Diagnostics.Trace.WriteLine("RelationCosmos.GetIncoming() exception: " + ex.Message);
}
return(RelationCosmos.emptyRelationList);
}
}
public void AddExistRelation(IDesignRelation idr)//添加关联，自行判断是否有关联控件存在
{
if (idr == null)
{
return;
}
if (NodeList.Count == 0)
{
return;
}
idr.designCanvas = this;
IDesignNode sdn = null, tdn = null;
if (idr.SourceID != null)
{
List <IDesignNode> rl = NodeList.Where(n => n.ObjectID == idr.SourceID).ToList();
if (rl.Count > 0)
{
sdn = rl[0];
}
}
if (idr.TargetID != null)
{
List <IDesignNode> rl = NodeList.Where(n => n.ObjectID == idr.SourceID).ToList();
if (rl.Count > 0)
{
tdn = rl[0];
}
}
if (sdn != null)
{
idr.StartAnchorPoint = sdn.getDefaultAnchorPoint();
idr.StartPoint = idr.StartAnchorPoint.getDesignCanvasPoint();
}
else
{
idr.StartAnchorPoint = null;
idr.StartPoint = new Point(DeseignCanvas.Width / 2 - (new Random()).Next(50), DeseignCanvas.Height / 2 - (new Random()).Next(50));
}
if (tdn != null)
{
idr.EndAnchorPoint = tdn.getDefaultAnchorPoint();
idr.EndPoint = idr.EndAnchorPoint.getDesignCanvasPoint();
}
else
{
idr.EndAnchorPoint = null;
idr.EndPoint = new Point(DeseignCanvas.Width / 2 + (new Random()).Next(150), DeseignCanvas.Height / 2 + (new Random()).Next(150));
}
FrameworkElement fe = idr.getControl();
DeseignCanvas.Children.Add(fe);
idr.DrawRelationLine(idr.StartPoint, idr.EndPoint);
sendObjectOperationEvent(idr, DesignOperationFlag.CreateRelation);//提示设计图增加了节点对象
RelationList.Add(idr);
}
private static void AddToRelationList(string key, RelationBase relation, RelationLists toRelations)
{
RelationList list = GetRelationList(key, toRelations);
if (!list.Contains(relation))
{
list.Add(relation);
}
}
private void BuildDomFromSchema(JsonData data, string tableName, JsonSchema schema = null)
{
// first, create a new table instance for the data
JsonSchemaTable table = new JsonSchemaTable(tableName, data, this, schema);
TableList.Add(table);
JsonData objectToParse;
if (data != null && data.IsArray)
{
objectToParse = data.Count > 0 ? data[0] : null;
}
else
{
objectToParse = data;
}
//enumerate all schema
foreach (var property in schema.Properties)
{
string propertyName = property.Key;
JsonData objectData = null;
if (objectToParse != null && objectToParse.ContainsKey(propertyName))
{
objectData = objectToParse[propertyName];
}
if (property.Value.Type == JsonObjectType.Object)
{
if (IsFlattableR(property.Value))
{
continue;
}
else
{
string newTableName = GetUniqueTableName(propertyName);
JsonTableRelation relation = new JsonTableRelation(GetUniqueRelationName(tableName, newTableName), tableName, newTableName);
RelationList.Add(relation);
BuildDomFromSchema(objectData, newTableName, schema.Properties[propertyName]);
}
}
// schema.Properties[propertyName].Item may be null if schema has no other definitions for the array ("Item": { "type": "array" }) => we wont add this array since it will always be an empty array with no columns
else if (property.Value.Type == JsonObjectType.Array && schema.Properties[propertyName].Item != null)
{
// need to add a table anyway, either for a true object or just a fake table using "ArrayValue" as field name
string newTableName = GetUniqueTableName(propertyName);
JsonTableRelation relation = new JsonTableRelation(GetUniqueRelationName(tableName, newTableName), tableName, newTableName);
RelationList.Add(relation);
// see if there is an object underneath
BuildDomFromSchema(objectData, newTableName, schema.Properties[propertyName].Item);
}
}
}
void DeseignCanvas_DesignPointerReleased(object sender, PointerRoutedEventArgs e)
{
HideDesignLine();
DeseignCanvas.PointerMoved -= new PointerEventHandler(DeseignCanvas_DesignPointerMoved);
DeseignCanvas.PointerReleased -= new PointerEventHandler(DeseignCanvas_DesignPointerReleased);
IDesignRelation l = null;
if ((StartAnchor != null) && (EndAnchor != null) && (EndAnchor != StartAnchor))
{
l = null;
if (!getNewRelationControlByID.Equals(null))//新建关联
{
l = getNewRelationControl(null, null);
}
if (l == null)//新建失败使用默认关联
{
l = new LynxConnectLine();
l.IsErrorData = true;
}
if (l != null)
{
l.designCanvas = this;
l.StartAnchorPoint = StartAnchor;
l.EndAnchorPoint = EndAnchor;
StartAnchor.OutRelationList.Add(l);
EndAnchor.InRelationList.Add(l);
l.SourceID = StartAnchor.ParentConnectControl.ObjectID;
l.TargetID = EndAnchor.ParentConnectControl.ObjectID;
}
}
if (l == null)
{
return;
} //没有能够创立链接
sendObjectOperationEvent(l, DesignOperationFlag.CreateRelation); //建立新的连接
l.ReadFromObject();
DeActiveAll();
l.DrawRelationLine(StartPoint.Value, e.GetCurrentPoint(getCanvas()).Position);
RelationList.Add(l);
ActiveDesignObject(l);
EndAnchor = null;
StartAnchor = null;
CurrentConnectPoint = null;
}
public void AddExistRelation(IDesignRelation idr, IDesignNode sdn, IDesignNode tdn)//在指定的起始节点和终止节点之间添加一个关联控件
{
if (idr == null)
{
return;
}
if (NodeList.Count == 0)
{
return;
}
idr.designCanvas = this;
if (sdn != null)
{
idr.StartAnchorPoint = sdn.getDefaultAnchorPoint();
idr.StartPoint = idr.StartAnchorPoint.getDesignCanvasPoint();
}
else
{
idr.StartAnchorPoint = null;
idr.StartPoint = new Point(DeseignCanvas.Width / 2 - (new Random()).Next(50), DeseignCanvas.Height / 2 - (new Random()).Next(50));
}
if (tdn != null)
{
idr.EndAnchorPoint = tdn.getDefaultAnchorPoint();
idr.EndPoint = idr.EndAnchorPoint.getDesignCanvasPoint();
}
else
{
idr.EndAnchorPoint = null;
idr.EndPoint = new Point(DeseignCanvas.Width / 2 + (new Random()).Next(150), DeseignCanvas.Height / 2 + (new Random()).Next(150));
}
FrameworkElement fe = idr.getControl();
DeseignCanvas.Children.Add(fe);
idr.DrawRelationLine(idr.StartPoint, idr.EndPoint);
sendObjectOperationEvent(idr, DesignOperationFlag.CreateRelation);//提示设计图增加了节点对象
RelationList.Add(idr);
}
public void CreateControl(IDesignObject idn, Point p)
{
idn.designCanvas = this;
FrameworkElement fe = idn.getControl();
Canvas.SetLeft(fe, p.X);
Canvas.SetTop(fe, p.Y);
DeseignCanvas.Children.Add(fe);
//DesignObjectList.Add(idn);
if (idn is IDesignNode)
{
NodeList.Add(idn as IDesignNode);
sendObjectOperationEvent(idn, DesignOperationFlag.CreateObject);//提示设计图增加了节点对象
}
if (idn is IDesignRelation)
{
RelationList.Add(idn as IDesignRelation);
(idn as IDesignRelation).DrawRelationLine(p, new Point(p.X + 100, p.Y + 100));
sendObjectOperationEvent(idn, DesignOperationFlag.CreateRelation);//提示设计图增加了节点对象
}
}
/// <summary>
/// Returns a list of relations, that are known in RelationCosmos and that
/// the relation provided points to.
/// </summary>
/// <param name="relation">The object implementing RelationBase</param>
/// <param name="excludeRelations">List of relations,
/// that should be excluded in that check</param>
/// <returns>RelationList</returns>
public RelationList GetOutgoing(RelationBase relation, IList excludeRelations)
{
if (relation == null || relation.HRef == null)
{
return(RelationCosmos.emptyRelationList);
}
lock (syncRoot) {
try {
if (excludeRelations == null)
{
excludeRelations = (IList)RelationCosmos.emptyRelationList;
}
// check incoming:
RelationHRefList list = relation.OutgoingRelations;
if (list != null && list.Count > 0)
{
RelationList returnList = new RelationList(list.Count);
foreach (string hrefOut in list)
{
if (hrefOut != relation.HRef && !RelationListContainsHRef(excludeRelations, hrefOut) &&
registeredRelations.Contains(hrefOut))
{
returnList.Add(registeredRelations[hrefOut]);
}
}
return(returnList);
}
} catch (Exception ex) {
System.Diagnostics.Trace.WriteLine("RelationCosmos.GetOutgoing() exception: " + ex.Message);
}
return(RelationCosmos.emptyRelationList);
}
}