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Java 2 Platform SE v1.3.1: Class JRootPane.RootLayout
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JavaTM 2 Platform
Std. Ed. v1.3.1
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javax.swing
Class JRootPane.RootLayout

java.lang.Object
  |
  +--javax.swing.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. A future release of Swing will provide support for long term persistence.

See Also:
Serialized Form

Constructor Summary
protected JRootPane.RootLayout()
           
 
Method Summary
 void addLayoutComponent(Component comp, Object constraints)
          Adds the specified component to the layout, using the specified constraint object.
 void addLayoutComponent(String name, Component comp)
          Adds the specified component with the specified name to the layout.
 float getLayoutAlignmentX(Container target)
          Returns the alignment along the x axis.
 float getLayoutAlignmentY(Container target)
          Returns the alignment along the y axis.
 void invalidateLayout(Container target)
          Invalidates the layout, indicating that if the layout manager has cached information it should be discarded.
 void layoutContainer(Container parent)
          Instructs the layout manager to perform the layout for the specified container.
 Dimension maximumLayoutSize(Container target)
          Returns the maximum amount of space the layout can use.
 Dimension minimumLayoutSize(Container parent)
          Returns the minimum amount of space the layout needs.
 Dimension preferredLayoutSize(Container parent)
          Returns the amount of space the layout would like to have.
 void removeLayoutComponent(Component comp)
          Removes the specified component from the layout.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

JRootPane.RootLayout

protected JRootPane.RootLayout()
Method Detail

preferredLayoutSize

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

minimumLayoutSize

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

maximumLayoutSize

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

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:
the - Container for which this layout manager is being used

addLayoutComponent

public void addLayoutComponent(String name,
                               Component comp)
Description copied from interface: LayoutManager
Adds the specified component with the specified name to the layout.
Specified by:
addLayoutComponent in interface LayoutManager
Following copied from interface: java.awt.LayoutManager
Parameters:
name - the component name
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
Following copied from interface: java.awt.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
Following copied from interface: java.awt.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.
Specified by:
getLayoutAlignmentX in interface LayoutManager2

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

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
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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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