Module java.desktop

Class MetalComboBoxUI


public class MetalComboBoxUI
extends BasicComboBoxUI
Metal UI for JComboBox

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.beans package. Please see XMLEncoder.

See Also:
MetalComboBoxEditor, MetalComboBoxButton
  • Constructor Details

    • MetalComboBoxUI

      public MetalComboBoxUI()
  • Method Details

    • createUI

      public static ComponentUI createUI​(JComponent c)
      Constructs an instance of MetalComboBoxUI.
      Parameters:
      c - a component
      Returns:
      an instance of MetalComboBoxUI
    • paintCurrentValue

      public void paintCurrentValue​(Graphics g, Rectangle bounds, boolean hasFocus)
      If necessary paints the currently selected item.
      Overrides:
      paintCurrentValue in class BasicComboBoxUI
      Parameters:
      g - Graphics to paint to
      bounds - Region to paint current value to
      hasFocus - whether or not the JComboBox has focus
      Throws:
      NullPointerException - if any of the arguments are null.
      Since:
      1.5
    • paintCurrentValueBackground

      public void paintCurrentValueBackground​(Graphics g, Rectangle bounds, boolean hasFocus)
      If necessary paints the background of the currently selected item.
      Overrides:
      paintCurrentValueBackground in class BasicComboBoxUI
      Parameters:
      g - Graphics to paint to
      bounds - Region to paint background to
      hasFocus - whether or not the JComboBox has focus
      Throws:
      NullPointerException - if any of the arguments are null.
      Since:
      1.5
    • getBaseline

      public int getBaseline​(JComponent c, int width, int height)
      Returns the baseline.
      Overrides:
      getBaseline in class BasicComboBoxUI
      Parameters:
      c - JComponent baseline is being requested for
      width - the width to get the baseline for
      height - the height to get the baseline for
      Returns:
      baseline or a value < 0 indicating there is no reasonable baseline
      Throws:
      NullPointerException - if c is null
      IllegalArgumentException - if width or height is < 0
      Since:
      1.6
      See Also:
      JComponent.getBaseline(int, int)
    • editablePropertyChanged

      @Deprecated protected void editablePropertyChanged​(PropertyChangeEvent e)
      Deprecated.
      As of Java 2 platform v1.4.
      As of Java 2 platform v1.4 this method is no longer used. Do not call or override. All the functionality of this method is in the MetalPropertyChangeListener.
      Parameters:
      e - an instance of PropertyChangeEvent
    • layoutComboBox

      public void layoutComboBox​(Container parent, MetalComboBoxUI.MetalComboBoxLayoutManager manager)
      Lays out the JComboBox in the parent container.
      Parameters:
      parent - a container
      manager - an instance of MetalComboBoxLayoutManager
    • removeListeners

      @Deprecated protected void removeListeners()
      Deprecated.
      As of Java 2 platform v1.4.
      As of Java 2 platform v1.4 this method is no longer used.