| java.lang.Object | |
| ↳ | javax.swing.JRootPane.RootLayout |
Class Overview
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 JavaBeansTM
has been added to the java.beans package.
Please see XMLEncoder.
Summary
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| Public Methods | |||||||||||
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If the layout manager uses a per-component string,
adds the component
comp to the layout,
associating it
with the string specified by name. | |||||||||||
Adds the specified component to the layout, using the specified
constraint object.
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Returns the alignment along the x axis.
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Returns the alignment along the y axis.
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Invalidates the layout, indicating that if the layout manager
has cached information it should be discarded.
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Instructs the layout manager to perform the layout for the specified
container.
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Returns the maximum amount of space the layout can use.
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Returns the minimum amount of space the layout needs.
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Returns the amount of space the layout would like to have.
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Removes the specified component from the layout.
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[Expand]
Inherited Methods | |||||||||||
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From class
java.lang.Object
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From interface
java.awt.LayoutManager
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From interface
java.awt.LayoutManager2
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Protected Constructors
protected JRootPane.RootLayout ()
Public Methods
public void addLayoutComponent (String name, Component comp)
If the layout manager uses a per-component string,
adds the component comp to the layout,
associating it
with the string specified by name.
Parameters
| name | the string to be associated with the component |
|---|---|
| comp | the component to be added |
public void addLayoutComponent (Component comp, Object constraints)
Adds the specified component to the layout, using the specified constraint object.
Parameters
| comp | the component to be added |
|---|---|
| constraints | where/how the component is added to the layout. |
public float getLayoutAlignmentX (Container target)
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.
public float getLayoutAlignmentY (Container target)
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.
public void invalidateLayout (Container target)
Invalidates the layout, indicating that if the layout manager has cached information it should be discarded.
public void layoutContainer (Container parent)
Instructs the layout manager to perform the layout for the specified container.
Parameters
| parent | the Container for which this layout manager is being used |
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public Dimension maximumLayoutSize (Container target)
Returns the maximum amount of space the layout can use.
Parameters
| target | the Container for which this layout manager is being used |
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Returns
- a Dimension object containing the layout's maximum size
public Dimension minimumLayoutSize (Container parent)
Returns the minimum amount of space the layout needs.
Parameters
| parent | the Container for which this layout manager is being used |
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Returns
- a Dimension object containing the layout's minimum size
public Dimension preferredLayoutSize (Container parent)
Returns the amount of space the layout would like to have.
Parameters
| parent | the Container for which this layout manager is being used |
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Returns
- a Dimension object containing the layout's preferred size
public void removeLayoutComponent (Component comp)
Removes the specified component from the layout.
Parameters
| comp | the component to be removed |
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