/** * Updates the list of connectors that we draw when the user moves or drags the mouse over a * figure to which can connect. */ public void repaintConnectors() { Rectangle2D.Double invalidArea = null; for (Connector c : connectors) { if (invalidArea == null) { invalidArea = c.getDrawingArea(); } else { invalidArea.add(c.getDrawingArea()); } } connectors = (connectableFigure == null) ? new java.util.LinkedList<Connector>() : connectableFigure.getConnectors(getOwner()); for (Connector c : connectors) { if (invalidArea == null) { invalidArea = c.getDrawingArea(); } else { invalidArea.add(c.getDrawingArea()); } } if (invalidArea != null) { view.getComponent().repaint(view.drawingToView(invalidArea)); } }