Class ViewportLayout
- java.lang.Object
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- javax.swing.ViewportLayout
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- All Implemented Interfaces:
- LayoutManager, Serializable
public class ViewportLayout extends Object implements LayoutManager, Serializable
The default layout manager forJViewport.ViewportLayoutdefines a policy for layout that should be useful for most applications. The viewport makes its view the same size as the viewport, however it will not make the view smaller than its minimum size. As the viewport grows the view is kept bottom justified until the entire view is visible, subsequently the view is kept top justified.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.beanspackage. Please seeXMLEncoder.
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Constructor Summary
Constructors Constructor and Description ViewportLayout()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method and Description voidaddLayoutComponent(String name, Component c)Adds the specified component to the layout.voidlayoutContainer(Container parent)Called by the AWT when the specified container needs to be laid out.DimensionminimumLayoutSize(Container parent)Returns the minimum dimensions needed to layout the components contained in the specified target container.DimensionpreferredLayoutSize(Container parent)Returns the preferred dimensions for this layout given the components in the specified target container.voidremoveLayoutComponent(Component c)Removes the specified component from the layout.
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Method Detail
addLayoutComponent
public void addLayoutComponent(String name, Component c)
Adds the specified component to the layout. Not used by this class.- Specified by:
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addLayoutComponentin interfaceLayoutManager - Parameters:
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name- the name of the component -
c- the the component to be added
removeLayoutComponent
public void removeLayoutComponent(Component c)
Removes the specified component from the layout. Not used by this class.- Specified by:
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removeLayoutComponentin interfaceLayoutManager - Parameters:
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c- the component to remove
preferredLayoutSize
public Dimension preferredLayoutSize(Container parent)
Returns the preferred dimensions for this layout given the components in the specified target container.- Specified by:
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preferredLayoutSizein interfaceLayoutManager - Parameters:
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parent- the component which needs to be laid out - Returns:
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a
Dimensionobject containing the preferred dimensions - See Also:
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minimumLayoutSize(java.awt.Container)
minimumLayoutSize
public Dimension minimumLayoutSize(Container parent)
Returns the minimum dimensions needed to layout the components contained in the specified target container.- Specified by:
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minimumLayoutSizein interfaceLayoutManager - Parameters:
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parent- the component which needs to be laid out - Returns:
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a
Dimensionobject containing the minimum dimensions - See Also:
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preferredLayoutSize(java.awt.Container)
layoutContainer
public void layoutContainer(Container parent)
Called by the AWT when the specified container needs to be laid out.- Specified by:
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layoutContainerin interfaceLayoutManager - Parameters:
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parent- the container to lay out - Throws:
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AWTError- if the target isn't the container specified to theBoxLayoutconstructor
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