/// <summary>
/// Add join point into context. If join point with given pointKey
/// is already defined for owningDrawing, existing join point definition
/// is returned.
/// </summary>
/// <param name="owningDrawing">Reference to drawing definition containing drawed join point.</param>
/// <param name="pointKey">Key, providing access to join point.</param>
/// <returns>Created or existing join point for given pointKey.</returns>
public ConnectorDefinition DrawJoinPoint(DrawingReference owningDrawing, object pointKey)
{
JoinPointDefinitions joins;
if (!_joinPointDefintions.TryGetValue(owningDrawing.DefinitionID, out joins))
{
joins = new JoinPointDefinitions();
_joinPointDefintions[owningDrawing.DefinitionID] = joins;
}
ConnectorDefinition result;
if (!joins.TryGetValue(pointKey, out result))
{
result = new ConnectorDefinition(owningDrawing);
joins[pointKey] = result;
}
return(result);
}
/// <summary>
/// Initializes a new instance of the <see cref="ConnectorDrawing" /> class.
/// </summary>
/// <param name="definition">The definition.</param>
/// <param name="align">The align.</param>
/// <param name="owningItem">The owning item.</param>
public ConnectorDrawing(ConnectorDefinition definition, ConnectorAlign align, DiagramItem owningItem)
{
Align = align;
Definition = definition;
OwningItem = owningItem;
var halfMargin = 10;
switch (Align)
{
case ConnectorAlign.Top:
case ConnectorAlign.Bottom:
Margin = new Thickness(halfMargin, 0, halfMargin, 0);
break;
case ConnectorAlign.Left:
case ConnectorAlign.Right:
Margin = new Thickness(0, halfMargin, 0, halfMargin);
break;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="JoinDefinition" /> class.
/// </summary>
/// <param name="from">From connector definition.</param>
/// <param name="to">To connector definition.</param>
public JoinDefinition(ConnectorDefinition from, ConnectorDefinition to)
{
From = from;
To = to;
}
/// <summary>
/// Get <see cref="DiagramItem"/> that are referenced by given <see cref="ConnectorDefinition"/>
/// </summary>
/// <param name="connectorDefinition">Definition of connector</param>
/// <returns>Referenced <see cref="DiagramItem"/> objects</returns>
internal IEnumerable <DiagramItem> DefiningItems(ConnectorDefinition connectorDefinition)
{
return(_items.Get(connectorDefinition.Reference.DefinitionID));
}
/// <summary>
/// Gets the connector.
/// </summary>
/// <param name="point">The point.</param>
/// <returns>ConnectorDrawing.</returns>
internal ConnectorDrawing GetConnector(ConnectorDefinition point)
{
return _connectors[point];
}
/// <summary> /// Creates the connector according to given definition. /// </summary> /// <param name="definition">The connector definition.</param> /// <param name="owningItem">The owning item.</param> /// <returns>Created drawing.</returns> public abstract ConnectorDrawing CreateConnector(ConnectorDefinition definition, DiagramItem owningItem);