- 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
.ViewportLayout
defines 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 JavaBeansTM has been added to the
java.beans
package. Please seeXMLEncoder
.
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Constructor Summary
Constructors Constructor and Description ViewportLayout()
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Method Summary
Methods Modifier and Type Method and Description void
addLayoutComponent(String name, Component c)
Adds the specified component to the layout.void
layoutContainer(Container parent)
Called by the AWT when the specified container needs to be laid out.Dimension
minimumLayoutSize(Container parent)
Returns the minimum dimensions needed to layout the components contained in the specified target container.Dimension
preferredLayoutSize(Container parent)
Returns the preferred dimensions for this layout given the components in the specified target container.void
removeLayoutComponent(Component c)
Removes the specified component from the layout.
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Method Detail
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addLayoutComponent
public void addLayoutComponent(String name, Component c)
Adds the specified component to the layout. Not used by this class.- Specified by:
addLayoutComponent
in interfaceLayoutManager
- Parameters:
name
- the name of the componentc
- the the component to be added
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removeLayoutComponent
public void removeLayoutComponent(Component c)
Removes the specified component from the layout. Not used by this class.- Specified by:
removeLayoutComponent
in interfaceLayoutManager
- Parameters:
c
- the component to remove
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preferredLayoutSize
public Dimension preferredLayoutSize(Container parent)
Returns the preferred dimensions for this layout given the components in the specified target container.- Specified by:
preferredLayoutSize
in interfaceLayoutManager
- Parameters:
parent
- the component which needs to be laid out- Returns:
- a
Dimension
object containing the preferred dimensions - See Also:
minimumLayoutSize(java.awt.Container)
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minimumLayoutSize
public Dimension minimumLayoutSize(Container parent)
Returns the minimum dimensions needed to layout the components contained in the specified target container.- Specified by:
minimumLayoutSize
in interfaceLayoutManager
- Parameters:
parent
- the component which needs to be laid out- Returns:
- a
Dimension
object containing the minimum dimensions - See Also:
preferredLayoutSize(java.awt.Container)
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layoutContainer
public void layoutContainer(Container parent)
Called by the AWT when the specified container needs to be laid out.- Specified by:
layoutContainer
in interfaceLayoutManager
- Parameters:
parent
- the container to lay out- Throws:
AWTError
- if the target isn't the container specified to theBoxLayout
constructor
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Source du document imprimé : https://www.gaudry.be/java-api-rf-javax/swing/viewportlayout.html
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