Package Summary  Overview Summary

class:JRootPane.RootLayout [NONE]
All Implemented Interfaces:
LayoutManager, LayoutManager2, Serializable
Enclosing class:
JRootPane
protected class JRootPane.RootLayoutextends 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:JRootPane.RootLayout() [NONE]

  • RootLayout

    protected RootLayout()
    Constructs a RootLayout.

method:preferredLayoutSize(java.awt.Container) [NONE]

  • preferredLayoutSize

    public Dimension preferredLayoutSize (Container parent)
    Returns the amount of space the layout would like to have.
    Specified by:
    preferredLayoutSize in interface LayoutManager
    Parameters:
    parent - the Container for which this layout manager is being used
    Returns:
    a Dimension object containing the layout's preferred size
    See Also:

    • method:minimumLayoutSize(java.awt.Container) [NONE]

    minimumLayoutSize

    public Dimension minimumLayoutSize (Container parent)
    Returns the minimum amount of space the layout needs.
    Specified by:
    minimumLayoutSize in interface LayoutManager
    Parameters:
    parent - the Container for which this layout manager is being used
    Returns:
    a Dimension object containing the layout's minimum size
    See Also:

    method:maximumLayoutSize(java.awt.Container) [NONE]

    maximumLayoutSize

    public Dimension maximumLayoutSize (Container target)
    Returns the maximum amount of space the layout can use.
    Specified by:
    maximumLayoutSize in interface LayoutManager2
    Parameters:
    target - the Container for which this layout manager is being used
    Returns:
    a Dimension object containing the layout's maximum size
    See Also:

    method:layoutContainer(java.awt.Container) [NONE]

    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

    method:addLayoutComponent(java.lang.String,java.awt.Component) [NONE]

    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

    method:removeLayoutComponent(java.awt.Component) [NONE]

    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

    method:addLayoutComponent(java.awt.Component,java.lang.Object) [NONE]

    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.

    method:getLayoutAlignmentX(java.awt.Container) [NONE]

    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.
    Specified by:
    getLayoutAlignmentX in interface LayoutManager2
    Parameters:
    target - the target container
    Returns:
    the x-axis alignment preference

    method:getLayoutAlignmentY(java.awt.Container) [NONE]

    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.
    Specified by:
    getLayoutAlignmentY in interface LayoutManager2
    Parameters:
    target - the target container
    Returns:
    the y-axis alignment preference

    method:invalidateLayout(java.awt.Container) [NONE]

    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.
    Specified by:
    invalidateLayout in interface LayoutManager2
    Parameters:
    target - the target container

    © 2023 Oracle Corporation and/or its affiliates