/** * Instructs the layout manager to perform the layout for the specified container. * * @param the Container for which this layout manager is being used */ public void layoutContainer(Container parent) { JRootPane root = (JRootPane) parent; Rectangle b = root.getBounds(); Insets i = root.getInsets(); int nextY = 0; int w = b.width - i.right - i.left; int h = b.height - i.top - i.bottom; if (root.getLayeredPane() != null) { root.getLayeredPane().setBounds(i.left, i.top, w, h); } if (root.getGlassPane() != null) { root.getGlassPane().setBounds(i.left, i.top, w, h); } // Note: This is laying out the children in the layeredPane, // technically, these are not our children. if (root.getWindowDecorationStyle() != JRootPane.NONE && (root.getUI() instanceof RootPaneUI)) { JComponent titlePane = ((RootPaneUI) root.getUI()).getTitlePane(); if (titlePane != null) { Dimension tpd = titlePane.getPreferredSize(); if (tpd != null) { int tpHeight = tpd.height; titlePane.setBounds(0, 0, w, tpHeight); nextY += tpHeight; } } } if (root.getContentPane() != null) { root.getContentPane().setBounds(0, nextY, w, h < nextY ? 0 : h - nextY); } }
public void doLayout() { if (getLayout() != null) { // A layout manager has been set, so delegate to it super.doLayout(); return; } Dimension d = getSize(); Insets i = getInsets(); if (collapsed) { if (label != null) { Dimension p = label.getPreferredSize(); label.setBounds( i.left, i.top + (d.height - i.top - i.bottom - p.height) / 2, p.width, p.height); } } else { if (comp != null) { comp.setBounds(i.left, i.top, d.width - i.left - i.right, d.height - i.top - i.bottom); } } }