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javax.swing
protected class: JRootPane.RootLayout [javadoc | source]

java.lang.Object
   javax.swing.JRootPane$RootLayout

All Implemented Interfaces:
    LayoutManager2, Serializable

A custom layout manager that is responsible for the layout of layeredPane, glassPane, and menuBar.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans^TM has been added to the java.beans package. Please see java.beans.XMLEncoder .

Method from javax.swing.JRootPane$RootLayout Summary:
addLayoutComponent,   addLayoutComponent,   getLayoutAlignmentX,   getLayoutAlignmentY,   invalidateLayout,   layoutContainer,   maximumLayoutSize,   minimumLayoutSize,   preferredLayoutSize,   removeLayoutComponent

Methods from java.lang.Object:
clone,   equals,   finalize,   getClass,   hashCode,   notify,   notifyAll,   toString,   wait,   wait,   wait

Method from javax.swing.JRootPane$RootLayout Detail:
public void addLayoutComponent(String name, Component comp) { }
public void addLayoutComponent(Component comp, Object constraints) { }
public float getLayoutAlignmentX(Container target) { return 0.0f; }
public float getLayoutAlignmentY(Container target) { return 0.0f; }
public void invalidateLayout(Container target) { }
public void layoutContainer(Container parent) { Rectangle b = parent.getBounds(); Insets i = getInsets(); int contentY = 0; int w = b.width - i.right - i.left; int h = b.height - i.top - i.bottom; if(layeredPane != null) { layeredPane.setBounds(i.left, i.top, w, h); } if(glassPane != null) { glassPane.setBounds(i.left, i.top, w, h); } // Note: This is laying out the children in the layeredPane, // technically, these are not our children. if(menuBar != null && menuBar.isVisible()) { Dimension mbd = menuBar.getPreferredSize(); menuBar.setBounds(0, 0, w, mbd.height); contentY += mbd.height; } if(contentPane != null) { contentPane.setBounds(0, contentY, w, h - contentY); } } Instructs the layout manager to perform the layout for the specified container.
public Dimension maximumLayoutSize(Container target) { Dimension rd, mbd; Insets i = getInsets(); if(menuBar != null && menuBar.isVisible()) { mbd = menuBar.getMaximumSize(); } else { mbd = new Dimension(0, 0); } if(contentPane != null) { rd = contentPane.getMaximumSize(); } else { // This is silly, but should stop an overflow error rd = new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE - i.top - i.bottom - mbd.height - 1); } return new Dimension(Math.min(rd.width, mbd.width) + i.left + i.right, rd.height + mbd.height + i.top + i.bottom); } Returns the maximum amount of space the layout can use.
public Dimension minimumLayoutSize(Container parent) { Dimension rd, mbd; Insets i = getInsets(); if(contentPane != null) { rd = contentPane.getMinimumSize(); } else { rd = parent.getSize(); } if(menuBar != null && menuBar.isVisible()) { mbd = menuBar.getMinimumSize(); } else { mbd = new Dimension(0, 0); } return new Dimension(Math.max(rd.width, mbd.width) + i.left + i.right, rd.height + mbd.height + i.top + i.bottom); } Returns the minimum amount of space the layout needs.
public Dimension preferredLayoutSize(Container parent) { Dimension rd, mbd; Insets i = getInsets(); if(contentPane != null) { rd = contentPane.getPreferredSize(); } else { rd = parent.getSize(); } if(menuBar != null && menuBar.isVisible()) { mbd = menuBar.getPreferredSize(); } else { mbd = new Dimension(0, 0); } return new Dimension(Math.max(rd.width, mbd.width) + i.left + i.right, rd.height + mbd.height + i.top + i.bottom); } Returns the amount of space the layout would like to have.
public void removeLayoutComponent(Component comp) { }