Java Module java.desktop Package javax.swing.plaf.multi Class MultiRootPaneUI（JDK11）

Field Detail

• uis

  protected Vector<ComponentUI> uis

  The vector containing the real UIs. This is populated in the call to createUI, and can be obtained by calling the getUIs method. The first element is guaranteed to be the real UI obtained from the default look and feel.

Constructor Detail

• MultiRootPaneUI

  public MultiRootPaneUI()

Method Detail

• getUIs

  public ComponentUI[] getUIs()

  Returns the list of UIs associated with this multiplexing UI. This allows processing of the UIs by an application aware of multiplexing UIs on components.

  Returns:

  an array of the UI delegates

• contains

  public boolean contains​(JComponent a,
                          int b,
                          int c)

  Invokes the contains method on each UI handled by this object.

  Overrides:

  contains in class ComponentUI

  Parameters:

  a - the component where the x,y location is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

  b - the x coordinate of the point

  c - the y coordinate of the point

  Returns:

  the value obtained from the first UI, which is the UI obtained from the default LookAndFeel

  See Also:

  JComponent.contains(int, int), Component.contains(int, int)

• update

  public void update​(Graphics a,
                     JComponent b)

  Invokes the update method on each UI handled by this object.

  Overrides:

  update in class ComponentUI

  Parameters:

  a - the Graphics context in which to paint

  b - the component being painted; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

  See Also:

  ComponentUI.paint(java.awt.Graphics, javax.swing.JComponent), JComponent.paintComponent(java.awt.Graphics)

• createUI

  public static ComponentUI createUI​(JComponent a)

  Returns a multiplexing UI instance if any of the auxiliary LookAndFeels supports this UI. Otherwise, just returns the UI object obtained from the default LookAndFeel.

  Parameters:

  a - the component to create the UI for

  Returns:

  the UI delegate created

• installUI

  public void installUI​(JComponent a)

  Invokes the installUI method on each UI handled by this object.

  Overrides:

  installUI in class ComponentUI

  Parameters:

  a - the component where this UI delegate is being installed

  See Also:

  ComponentUI.uninstallUI(javax.swing.JComponent), JComponent.setUI(javax.swing.plaf.ComponentUI), JComponent.updateUI()

• uninstallUI

  public void uninstallUI​(JComponent a)

  Invokes the uninstallUI method on each UI handled by this object.

  Overrides:

  uninstallUI in class ComponentUI

  Parameters:

  a - the component from which this UI delegate is being removed; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

  See Also:

  ComponentUI.installUI(javax.swing.JComponent), JComponent.updateUI()

• paint

  public void paint​(Graphics a,
                    JComponent b)

  Invokes the paint method on each UI handled by this object.

  Overrides:

  paint in class ComponentUI

  Parameters:

  a - the Graphics context in which to paint

  b - the component being painted; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

  See Also:

  ComponentUI.update(java.awt.Graphics, javax.swing.JComponent)

• getPreferredSize

  public Dimension getPreferredSize​(JComponent a)

  Invokes the getPreferredSize method on each UI handled by this object.

  Overrides:

  getPreferredSize in class ComponentUI

  Parameters:

  a - the component whose preferred size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

  Returns:

  the value obtained from the first UI, which is the UI obtained from the default LookAndFeel

  See Also:

  JComponent.getPreferredSize(), LayoutManager.preferredLayoutSize(java.awt.Container)

• getMinimumSize

  public Dimension getMinimumSize​(JComponent a)

  Invokes the getMinimumSize method on each UI handled by this object.

  Overrides:

  getMinimumSize in class ComponentUI

  Parameters:

  a - the component whose minimum size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

  Returns:

  the value obtained from the first UI, which is the UI obtained from the default LookAndFeel

  See Also:

  JComponent.getMinimumSize(), LayoutManager.minimumLayoutSize(java.awt.Container), ComponentUI.getPreferredSize(javax.swing.JComponent)

• getMaximumSize

  public Dimension getMaximumSize​(JComponent a)

  Invokes the getMaximumSize method on each UI handled by this object.

  Overrides:

  getMaximumSize in class ComponentUI

  Parameters:

  a - the component whose maximum size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

  Returns:

  the value obtained from the first UI, which is the UI obtained from the default LookAndFeel

  See Also:

  JComponent.getMaximumSize(), LayoutManager2.maximumLayoutSize(java.awt.Container)

• getAccessibleChildrenCount

  public int getAccessibleChildrenCount​(JComponent a)

  Invokes the getAccessibleChildrenCount method on each UI handled by this object.

  Overrides:

  getAccessibleChildrenCount in class ComponentUI

  Parameters:

  a - JComponent for which to get count of accessible children

  Returns:

  the value obtained from the first UI, which is the UI obtained from the default LookAndFeel

  See Also:

  ComponentUI.getAccessibleChild(javax.swing.JComponent, int)

• getAccessibleChild

  public Accessible getAccessibleChild​(JComponent a,
                                       int b)

  Invokes the getAccessibleChild method on each UI handled by this object.

  Overrides:

  getAccessibleChild in class ComponentUI

  Parameters:

  a - a JComponent for which to get a child object

  b - zero-based index of child

  Returns:

  the value obtained from the first UI, which is the UI obtained from the default LookAndFeel

  See Also:

  ComponentUI.getAccessibleChildrenCount(javax.swing.JComponent)