/// <summary>
/// Constructor
/// The Routing map is initialised with HardBlocks covering the shapes.
/// It is also necessary to call MapConnectors() to initialise the RoutedPoints Dictionary with the existing connections.
/// </summary>
/// <param name="model"></param>
public ConnectionRouter(Model model)
{
routingSpace = View.RoundOutToGrid(model.GetDiagramBounds(RoutingMargin));
// Create the map of routing points on the grid spacing
map = new RouteMap(routingSpace.Width / View.GRID_SIZE, routingSpace.Height / View.GRID_SIZE);
foreach (var task in Model.Workflow.Tasks)
{
var shape = task.Symbol.Shape;
var bounds = View.RoundOutToGrid(shape.Bounds);
bounds.X -= routingSpace.X;
bounds.Y -= routingSpace.Y;
for (var x = bounds.Left / 10; x <= bounds.Right / 10; x++)
{
for (var y = bounds.Top / 10; y <= bounds.Bottom / 10; y++)
{
map[x, y] = RouteState.HardBlock;
}
}
// Make holes
foreach (var pin in shape.pins.Values)
{
var m = SnapToMap(shape.Bounds.X + pin.Centre.X, shape.Bounds.Y + pin.Centre.Y);
while (map.Inside(m) && map[m] == RouteState.HardBlock)
{
map[m] = RouteState.Empty;
m = m.Step(pin.Direction);
}
}
}
}