LayoutManager (Java Platform SE 6) - JDK 5 Documentation v6.0, Java 2 SDK 英文文档

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Java™ Platform
Standard Ed. 6

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java.awt
Interface LayoutManager

All Known Subinterfaces:: LayoutManager2

All Known Implementing Classes:: BasicComboBoxUI.ComboBoxLayoutManager, BasicInternalFrameTitlePane.TitlePaneLayout, BasicInternalFrameUI.InternalFrameLayout, BasicOptionPaneUI.ButtonAreaLayout, BasicScrollBarUI, BasicSplitPaneDivider.DividerLayout, BasicSplitPaneUI.BasicHorizontalLayoutManager, BasicSplitPaneUI.BasicVerticalLayoutManager, BasicTabbedPaneUI.TabbedPaneLayout, BorderLayout, BoxLayout, CardLayout, DefaultMenuLayout, FlowLayout, GridBagLayout, GridLayout, GroupLayout, JRootPane.RootLayout, JSpinner.DateEditor, JSpinner.DefaultEditor, JSpinner.ListEditor, JSpinner.NumberEditor, MetalComboBoxUI.MetalComboBoxLayoutManager, MetalScrollBarUI, MetalTabbedPaneUI.TabbedPaneLayout, OverlayLayout, ScrollPaneLayout, ScrollPaneLayout.UIResource, SpringLayout, ViewportLayout

public interface LayoutManager

Defines the interface for classes that know how to lay out Containers.

Swing's painting architecture assumes the children of a JComponent do not overlap. If a JComponent's LayoutManager allows children to overlap, the JComponent must override isOptimizedDrawingEnabled to return false.

See Also:: Container, JComponent.isOptimizedDrawingEnabled()

Method Summary

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.

void layoutContainer(Container parent)
          Lays out the specified container.

Dimension minimumLayoutSize(Container parent)
          Calculates the minimum size dimensions for the specified container, given the components it contains.

Dimension preferredLayoutSize(Container parent)
          Calculates the preferred size dimensions for the specified container, given the components it contains.

void removeLayoutComponent(Component comp)
          Removes the specified component from the layout.

Method Summary
`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`.
`void`	`layoutContainer(Container parent)` Lays out the specified container.
`Dimension`	`minimumLayoutSize(Container parent)` Calculates the minimum size dimensions for the specified container, given the components it contains.
`Dimension`	`preferredLayoutSize(Container parent)` Calculates the preferred size dimensions for the specified container, given the components it contains.
`void`	`removeLayoutComponent(Component comp)` Removes the specified component from the layout.

Method Detail

addLayoutComponent

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

removeLayoutComponent

void removeLayoutComponent(Component comp)

Removes the specified component from the layout.

Parameters:: comp - the component to be removed

preferredLayoutSize

Dimension preferredLayoutSize(Container parent)

Calculates the preferred size dimensions for the specified container, given the components it contains.

Parameters:: parent - the container to be laid out
See Also:: minimumLayoutSize(java.awt.Container)

minimumLayoutSize

Dimension minimumLayoutSize(Container parent)

Calculates the minimum size dimensions for the specified container, given the components it contains.

Parameters:: parent - the component to be laid out
See Also:: preferredLayoutSize(java.awt.Container)

layoutContainer

void layoutContainer(Container parent)

Lays out the specified container.

Parameters:: parent - the container to be laid out