public void redraw() {
if (canvas != null && canvas.isDisposed() == false) {
canvas.redraw();
xyGraph.repaint();
}
}
/** Unhook outline viewer. */
protected void unhookOutlineViewer() {
editor.getSelectionSynchronizer().removeViewer(getViewer());
FigureCanvas editor2 = editor.getEditor();
if (disposeListener != null && editor2 != null && !editor2.isDisposed())
editor2.removeDisposeListener(disposeListener);
}