/// <summary>
/// Method that creates a node of the specified type. The method will specify the ports
/// that the node should have based on its type.
/// </summary>
private void CreateNode(IGraph graph, PointD location, FlowChartType type)
{
var size = FlowChartNodeStyle.GetNodeTypeSize(type);
RectD newBounds = new RectD(location, size);
graph.CreateNode(newBounds, new FlowChartNodeStyle {
FlowChartType = type
});
}
/// <summary>
/// Returns the size a node with this tag would need.
/// </summary>
public static SizeD GetNodeTypeSize(FlowChartType type)
{
switch (type)
{
case FlowChartType.Start:
return(new SizeD(30, 30));
case FlowChartType.Operation:
return(new SizeD(60, 30));
case FlowChartType.End:
return(new SizeD(30, 30));
case FlowChartType.Branch:
return(new SizeD(60, 30));
default: // can't happen
return(new SizeD(30, 30));
}
}
/// <summary>
/// Creates an enumerable of all edges belonging to the type of the node as specified by its
/// <see cref="FlowChartType"/> set as its tag or an empty list if there is no
/// <see cref="FlowChartType"/>.
/// </summary>
/// <param name="flowChartType"></param>
/// <returns></returns>
public static IEnumerable <PortDescriptor> CreatePortDescriptors(FlowChartType flowChartType)
{
switch (flowChartType)
{
default:
case FlowChartType.Start:
return(new List <PortDescriptor>
{
new PortDescriptor {
X = 15, Y = 15, Side = PortDirections.Any
}
});
case FlowChartType.Operation:
return(new List <PortDescriptor>
{
new PortDescriptor {
Side = PortDirections.North
},
new PortDescriptor {
Side = PortDirections.South
}
});
case FlowChartType.Branch:
return(new List <PortDescriptor>
{
new PortDescriptor {
X = 30, Y = 0, Side = PortDirections.North, Capacity = 1, Cost = 0
},
new PortDescriptor {
X = 30, Y = 30, Side = PortDirections.South, Capacity = 1, Cost = 0
},
new PortDescriptor {
X = 60, Y = 15, Side = PortDirections.East, Capacity = 1, Cost = 0
},
new PortDescriptor {
X = 0, Y = 15, Side = PortDirections.West, Capacity = 1, Cost = 0
},
new PortDescriptor {
X = 30, Y = 0, Side = PortDirections.North, Cost = 1
},
new PortDescriptor {
X = 30, Y = 30, Side = PortDirections.South, Cost = 1
}
});
case FlowChartType.End:
return(new List <PortDescriptor>
{
new PortDescriptor {
X = 15, Y = 0, Side = PortDirections.North, Capacity = 1, Cost = 0
},
new PortDescriptor {
X = 30, Y = 15, Side = PortDirections.East, Capacity = 1, Cost = 1
},
new PortDescriptor {
X = 0, Y = 15, Side = PortDirections.West, Capacity = 1, Cost = 1
},
new PortDescriptor {
X = 30, Y = 15, Side = PortDirections.East, Cost = 2
},
new PortDescriptor {
X = 0, Y = 15, Side = PortDirections.West, Cost = 2
}
});
}
}
