Insets (Component view, Insets insets) { if (insets == null) { insets = JBInsets.emptyInsets(); } else { insets.set(0, 0, 0, 0); } if (myBorder != null) { Insets inner = myBorder.getBorderInsets(view); if (inner != null) insets.set(inner.top, inner.left, inner.bottom, inner.right); } if (view instanceof JComponent) { addViewInsets((JComponent)view, insets); } if (!myInsets.equals(insets)) { myInsets.set(insets.top, insets.left, insets.bottom, insets.right); if (view instanceof JComponent component) { if (component instanceof JTree tree) { TreeUtil.invalidateCacheAndRepaint(tree.getUI()); } component.revalidate(); } else { view.invalidate(); view.repaint(); } } return insets; }