public void TestStandardMerge()
{
Shape shape1 = Shapes.newValidShape();
Shape shape2 = Shapes.newValidShape();
Shape shape3 = Shapes.newValidShape();
Sketch.Sketch sketch = new Sketch.Sketch();
sketch.CheckConsistency();
sketch.AddShape(shape1);
sketch.AddShape(shape2);
sketch.AddShape(shape3);
sketch.connectShapes(shape1, shape3);
sketch.connectShapes(shape2, shape3);
Assert.IsTrue(sketch.AreConnected(shape1, shape3), "Shape 1 is not connected to shape 3");
Assert.IsTrue(sketch.AreConnected(shape2, shape3), "Shape 2 is not connected to shape 3");
sketch.CheckConsistency();
Assert.IsTrue(sketch.containsShape(shape1), "Sketch does not contain shape 1");
Assert.IsTrue(sketch.containsShape(shape2), "Sketch does not contain shape 2");
sketch.mergeShapes(shape1, shape2);
Assert.IsTrue(sketch.AreConnected(shape1, shape3), "Shape 1 is not connected to shape 3 (after merge)");
Assert.IsFalse(sketch.AreConnected(shape1, shape1), "Shape 1 is connected to itself (after merge)");
Assert.IsFalse(sketch.AreConnected(shape1, shape2), "Shape 1 is connected to shape 2 (after merge)");
Assert.IsTrue(sketch.containsShape(shape1), "Sketch does not contain shape 1 (after merge)");
Assert.IsFalse(sketch.containsShape(shape2), "Sketch contains shape 2 (after merge)");
}
/// <summary>
/// Attempts to merge the designated not bubble with the designated shape.
///
/// Only works if connected is a gate that can have a not bubble on the front of it.
/// </summary>
/// <param name="bubble">The not bubble in question.</param>
/// <param name="connected">The connected shape to try to merge with.</param>
/// <returns>Whether or not the shapes were able to merge.</returns>
private bool tryToMerge(Shape bubble, Shape connected)
{
if (bubble.Type != LogicDomain.NOTBUBBLE)
{
Console.WriteLine("You thought " + bubble.Name + " was a NotBubble, but it's not!");
return(false);
}
if (connected.Type.Classification != LogicDomain.GATE_CLASS)
{
return(false);
}
ShapeType newType = new ShapeType();
if (connected.Type == LogicDomain.AND)
{
newType = LogicDomain.NAND;
}
else if (connected.Type == LogicDomain.OR)
{
newType = LogicDomain.NOR;
}
else if (connected.Type == LogicDomain.XOR)
{
newType = LogicDomain.XNOR;
}
if (newType != new ShapeType())
{
_sketch.mergeShapes(connected, bubble);
#if (DEBUG)
Console.WriteLine("Adding a NotBubble changed a " + connected.Type + " to a " + newType);
#endif
connected.Type = newType;
return(true);
}
return(false);
}
/// <summary>
/// Once strokes are grouped, turn the stroke pairs into shapes.
/// </summary>
/// <param name="pairs">The list of stroke pairs that should be merged into shapes.</param>
/// <param name="sketch">The sketch the strokes exist in; where the shapes should be created.</param>
private void makeShapes(List <Sketch.StrokePair> pairs, Sketch.Sketch sketch)
{
foreach (Sketch.StrokePair pair in pairs)
{
Sketch.Shape shape1 = pair.Item1.ParentShape;
Sketch.Shape shape2 = pair.Item2.ParentShape;
// If they've already been merged, forget it.
if (shape1 == shape2)
{
continue;
}
// If either one is null, we have a problem!
if (shape1 == null || shape2 == null)
{
throw new Exception("Cannot merge substrokes " + pair.Item1 + " and " + pair.Item2 + "; one or both are missing a parent shape");
}
// Don't merge any user-specified shapes.
if (shape1.AlreadyGrouped || shape2.AlreadyGrouped)
{
continue;
}
sketch.mergeShapes(shape1, shape2);
}
#if DEBUG
Console.WriteLine("Your sketch has " + sketch.Shapes.Length + " distinct shapes.");
int gates = 0;
foreach (Sketch.Shape shape in sketch.Shapes)
{
if (shape.Classification == LogicDomain.GATE_CLASS)
{
gates++;
}
}
Console.WriteLine(gates + " of those shapes are gates.");
#endif
}
/// <summary>
/// Recalculate the connectedShapes of every shape in a given list,
/// and correctly update all related shapes.
/// </summary>
/// <param name="shapeList">the list of shapes to reconnect</param>
/// <param name="featureSketch">the sketch the shapes belong to</param>
public void recomputeConnectedShapes(IEnumerable <Sketch.Shape> shapeList, Sketch.Sketch sketch)
{
// Keep a unique list of shapes
HashSet <Sketch.Shape> allRelevantShapes = new HashSet <Sketch.Shape>(shapeList);
// Add connected shapes to the list that needs to change
foreach (Sketch.Shape shape in shapeList)
{
foreach (Sketch.Shape connected in shape.ConnectedShapes)
{
allRelevantShapes.Add(connected);
}
}
// clear ALL connections first
foreach (Sketch.Shape shape in allRelevantShapes)
{
shape.ClearConnections();
}
sketch.CheckConsistency();
// connect every shape
foreach (Sketch.Shape shape in allRelevantShapes)
{
connect(shape, sketch);
}
// Make sure connected wires are the same shape
Tuple <Sketch.Shape, Sketch.Shape> pair = null;
while ((pair = wiresToMerge(allRelevantShapes)) != null)
{
sketch.mergeShapes(pair.Item1, pair.Item2);
allRelevantShapes.Remove(pair.Item2);
sketch.connectShapes(pair.Item1, pair.Item1);;
}
sketch.CheckConsistency();
#if DEBUG
foreach (Shape wire in sketch.Shapes)
{
if (!LogicDomain.IsWire(wire.Type))
{
continue;
}
foreach (Shape shape in wire.ConnectedShapes)
{
if (LogicDomain.IsWire(shape.Type) && shape != wire)
{
throw new Exception("Found two connected wires (" + wire + " and " + shape + ") that were not merged!");
}
bool found = false;
foreach (EndPoint endpoint in wire.Endpoints)
{
if (endpoint.ConnectedShape == shape)
{
found = true;
break;
}
}
if (!found)
{
throw new Exception("The wire " + wire + " is connected to " + shape + " as a connected shape, but not by an endpoint!");
}
}
}
#endif
}