javax.swing

Class JRootPane.RootLayout

  • All Implemented Interfaces:
    LayoutManager, LayoutManager2, Serializable
    Enclosing class:
    JRootPane 

    protected class JRootPane.RootLayout
extends Object
implements 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™ has been added to the java.beans package. Please see XMLEncoder.

    • Constructor Detail

      • RootLayout

        protected RootLayout()

    • Method Detail

      • layoutContainer

        public void layoutContainer(Container parent)
        Instructs the layout manager to perform the layout for the specified container.
        Specified by:
        layoutContainer in interface  LayoutManager
        Parameters:
        parent - the Container for which this layout manager is being used

      • addLayoutComponent

        public void addLayoutComponent(String name,
                               Component comp)
        Description copied from interface: LayoutManager
        If the layout manager uses a per-component string, adds the component comp to the layout, associating it with the string specified by name.
        Specified by:
        addLayoutComponent in interface  LayoutManager
        Parameters:
        name - the string to be associated with the component
        comp - the component to be added

      • removeLayoutComponent

        public void removeLayoutComponent(Component comp)
        Description copied from interface: LayoutManager
        Removes the specified component from the layout.
        Specified by:
        removeLayoutComponent in interface  LayoutManager
        Parameters:
        comp - the component to be removed

      • addLayoutComponent

        public void addLayoutComponent(Component comp,
                               Object constraints)
        Description copied from interface: LayoutManager2
        Adds the specified component to the layout, using the specified constraint object.
        Specified by:
        addLayoutComponent in interface  LayoutManager2
        Parameters:
        comp - the component to be added
        constraints - where/how the component is added to the layout.

      • getLayoutAlignmentX

        public float getLayoutAlignmentX(Container target)
        Description copied from interface: LayoutManager2
        Returns the alignment along the x axis. This specifies how the component would like to be aligned relative to other components. The value should be a number between 0 and 1 where 0 represents alignment along the origin, 1 is aligned the furthest away from the origin, 0.5 is centered, etc.

      • getLayoutAlignmentY

        public float getLayoutAlignmentY(Container target)
        Description copied from interface: LayoutManager2
        Returns the alignment along the y axis. This specifies how the component would like to be aligned relative to other components. The value should be a number between 0 and 1 where 0 represents alignment along the origin, 1 is aligned the furthest away from the origin, 0.5 is centered, etc.

      • invalidateLayout

        public void invalidateLayout(Container target)
        Description copied from interface: LayoutManager2
        Invalidates the layout, indicating that if the layout manager has cached information it should be discarded.