public PointD Locate(IFigure owner)
{
if (owner != null)
{
PolyLineFigure figure = (PolyLineFigure)owner;
return(GetPosition(figure.Points));
}
return(new PointD());
}
public PointD Locate(IFigure owner)
{
if (owner != null)
{
PolyLineFigure figure = (PolyLineFigure)owner;
return(figure.PointAt(_index));
}
return(new PointD());
}
public override void InvokeEnd(double x, double y, IDrawingView view)
{
PolyLineFigure figure = ((PolyLineFigure)Owner);
// eliminates handles in the middle of a straight line
if (figure.PointCount > 2 && Index != 0 && Index != (figure.PointCount - 1))
{
PointD p1 = figure.PointAt(Index - 1);
PointD p2 = figure.PointAt(Index + 1);
if (Geometry.LineContainsPoint(p1.X, p1.Y, p2.X, p2.Y, x, y))
{
figure.RemovePointAt(Index);
}
}
base.InvokeEnd(x, y, view);
}
public override void InvokeEnd(MouseEvent ev)
{
PolyLineFigure figure = ((PolyLineFigure)Owner);
// eliminates handles in the middle of a straight line
if (figure.PointCount > 2 && Index != 0 && Index != (figure.PointCount - 1))
{
PointD p1 = figure.PointAt(Index - 1);
PointD p2 = figure.PointAt(Index + 1);
if (Geometry.LineContainsPoint(p1.X, p1.Y, p2.X, p2.Y, ev.X, ev.Y))
{
figure.RemovePointAt(Index);
}
}
base.InvokeEnd(ev);
}
public override void MouseDown(MouseEvent ev)
{
SetAnchorCoords(ev.X, ev.Y);
IDrawingView view = ev.View;
View = view;
Gdk.EventType type = ev.GdkEvent.Type;
if (type == EventType.TwoButtonPress)
{
PolyLineFigure connection = (PolyLineFigure)Figure;
connection.SplitSegment(ev.X, ev.Y);
view.ClearSelection();
view.AddToSelection(Figure);
_handle = view.FindHandle(ev.X, ev.Y) as PolyLineHandle;
((Gtk.Widget)view).GdkWindow.Cursor = _handle.CreateCursor();
_handle.InvokeStart(ev.X, ev.Y, ev.View);
CreateUndoActivity();
}
else
{
DefaultTool.MouseDown(ev);
}
}
public PolyLineHandle(PolyLineFigure figure, ILocator loc, int index) : base(figure, loc)
{
Index = index;
}
public LineConnectionHandle(PolyLineFigure figure, ILocator loc, int index) : base(figure, loc, index)
{
}