Module java.desktop
Package 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, SynthScrollBarUI, 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 Details

    • 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
      Returns:
      the preferred dimension for the container
      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
      Returns:
      the minimum dimension for the container
      See Also:
      preferredLayoutSize(java.awt.Container)

    • layoutContainer

      void layoutContainer​(Container parent)
      Lays out the specified container.
      Parameters:
      parent - the container to be laid out