private Dimension computeSize(Container target, boolean minimum) {
            synchronized (target.getTreeLock()) {
                int hgap = getHgap();
                int vgap = getVgap();
                int w = target.getWidth();

                if (w == 0) {
                    w = Integer.MAX_VALUE;
                }

                Insets insets = target.getInsets();
                if (insets == null) {
                    insets = new Insets(0, 0, 0, 0);
                }
                int reqdWidth = 0;

                int maxwidth = 180; // w - (insets.left + insets.right + hgap * 2);
                int n = target.getComponentCount();
                int x = 0;
                int y = insets.top;
                int rowHeight = 0;

                for (int i = 0; i < n; i++) {
                    Component c = target.getComponent(i);
                    if (c.isVisible()) {
                        Dimension d =
                                minimum ? c.getMinimumSize() : c.getPreferredSize();
                        if ((x == 0) || ((x + d.width) <= maxwidth)) {
                            if (x > 0) {
                                x += hgap;
                            }
                            x += d.width;
                            rowHeight = Math.max(rowHeight, d.height);
                        } else {
                            x = d.width;
                            y += vgap + rowHeight;
                            rowHeight = d.height;
                        }
                        reqdWidth = Math.max(reqdWidth, x);
                    }
                }
                y += rowHeight;
                return new Dimension(120, y);
            }
        }