public static void AddShape(Connectable shape, ShapeTypes type)
{
if (shape == null)
throw new ArgumentNullException("A null cannot be added to the shape collection.");
//the undo trick
AddShapeCommand cmd = new AddShapeCommand(shape, type, Canvas);
UndoManager.Execute(cmd);
RaiseOnShapeAdded(shape);
}
public CreateConnectionCommand(Core.Connectable first, Core.Connectable second, Canvas canvas)
{
if (canvas == null)
{
throw new ArgumentNullException("The canvas cannot be null");
}
mFromShape = first;
mToShape = second;
mCanvas = canvas;
}
// Filter the hit test values for each object in the enumeration.
public HitTestFilterBehavior ShapesFilter(DependencyObject o)
{
// Test for the object value you want to filter.
if (o is Core.IConnectable)
{
// Visual object and descendants are NOT part of hit test results enumeration.
//return HitTestFilterBehavior.ContinueSkipSelfAndChildren;
found = o as Core.Connectable;
return(HitTestFilterBehavior.Stop);
}
return(HitTestFilterBehavior.ContinueSkipSelf);
}
public bool MouseDown(MouseEventArgs e)
{
if (IsSuspended) return false;
Connectable elem = null;
HitTestResult result = VisualTreeHelper.HitTest(Canvas, e.GetPosition(Canvas));
if (result.VisualHit != null)
{
elem = GetConnectable(result.VisualHit as Visual);
if (ShapeFactory.Exists(elem))
{
SelectionManager.SelectShape(elem);
movedShape = SelectionManager.SelectedShape as Connectable;
moving = true;
shift = e.GetPosition(movedShape);
initialPoint = new Point(Canvas.GetLeft(movedShape), Canvas.GetTop(movedShape));
ActivateTool();
return true;
}
}
return false;
}
private static void RaiseOnShapeAdded(Connectable shape)
{
if (OnShapeAdded != null)
OnShapeAdded(null, new ShapeEventArgs(shape));
}
private void PointsToShapes(Point b, Point e)
{
mFromShape = GetConnectable(b);
mToShape = GetConnectable(e);
}
private void AddConnection(Core.Connectable first, Core.Connectable second)
{
mFromShape = first;
mToShape = second;
AddConnection();
}
///<summary>
///Default constructor
///</summary>
public ShapeEventArgs(Connectable shape)
{
this.mShape = shape;
}
///<summary>
///Default constructor
///</summary>
public ShapeEventArgs(Connectable shape)
{
this.mShape = shape;
}
// Filter the hit test values for each object in the enumeration.
public HitTestFilterBehavior ShapesFilter(DependencyObject o)
{
// Test for the object value you want to filter.
if (o is Core.IConnectable)
{
// Visual object and descendants are NOT part of hit test results enumeration.
//return HitTestFilterBehavior.ContinueSkipSelfAndChildren;
found = o as Core.Connectable;
return HitTestFilterBehavior.Stop;
}
return HitTestFilterBehavior.ContinueSkipSelf;
}
private void PointsToShapes(Point b, Point e)
{
mFromShape = GetConnectable(b);
mToShape = GetConnectable(e);
}
private void AddConnection(Core.Connectable first, Core.Connectable second)
{
mFromShape = first;
mToShape = second;
AddConnection();
}
public CreateConnectionCommand(Core.Connectable first, Core.Connectable second, Canvas canvas)
{
if (canvas == null)
throw new ArgumentNullException("The canvas cannot be null");
mFromShape = first;
mToShape = second;
mCanvas = canvas;
}
