Class BasicComboBoxEditor

java.lang.Object
javax.swing.plaf.basic.BasicComboBoxEditor
All Implemented Interfaces:
FocusListener, EventListener, ComboBoxEditor
Direct Known Subclasses:
BasicComboBoxEditor.UIResource, MetalComboBoxEditor
public class BasicComboBoxEditor extends Object implements ComboBoxEditor, FocusListener
The default editor for editable combo boxes. The editor is implemented as a JTextField.

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    static class 
    BasicComboBoxEditor.UIResource
    A subclass of BasicComboBoxEditor that implements UIResource.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected JTextField
    editor
    An instance of JTextField.

  • Constructor Summary

    Constructors
    Constructor
    Description
    BasicComboBoxEditor()
    Constructs a new instance of BasicComboBoxEditor.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    addActionListener(ActionListener l)
    Add an ActionListener.
    protected JTextField
    createEditorComponent()
    Creates the internal editor component.
    void
    focusGained(FocusEvent e)
    Invoked when a component gains the keyboard focus.
    void
    focusLost(FocusEvent e)
    Invoked when a component loses the keyboard focus.
    Component
    getEditorComponent()
    Returns the component that should be added to the tree hierarchy for this editor
    Object
    getItem()
    Returns the edited item
    void
    removeActionListener(ActionListener l)
    Remove an ActionListener
    void
    selectAll()
    Ask the editor to start editing and to select everything
    void
    setItem(Object anObject)
    Sets the item that should be edited.

    Methods declared in class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
    Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
    boolean
    equals(Object o)
    Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    May cause performance issues, deadlocks and hangs.
    final Class<? extends Object>
    getClass()
    Answers the unique instance of java.lang.Class which represents the class of the receiver.
    int
    hashCode()
    Answers an integer hash code for the receiver.
    final void
    notify()
    Causes one thread which is waiting on the receiver to be made ready to run.
    final void
    notifyAll()
    Causes all threads which are waiting on the receiver to be made ready to run.
    String
    toString()
    Answers a string containing a concise, human-readable description of the receiver.
    final void
    wait()
    Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by notify or notifyAll).
    final void
    wait(long time)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.
    final void
    wait(long time, int frac)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.

  • Field Details

    • editor

      protected JTextField editor
      An instance of JTextField.

  • Constructor Details

    • BasicComboBoxEditor

      public BasicComboBoxEditor()
      Constructs a new instance of BasicComboBoxEditor.

  • Method Details

    • getEditorComponent

      public Component getEditorComponent()
      Description copied from interface: ComboBoxEditor
      Returns the component that should be added to the tree hierarchy for this editor
      Specified by:
      getEditorComponent in interface ComboBoxEditor
      Returns:
      the component

    • createEditorComponent

      protected JTextField createEditorComponent()
      Creates the internal editor component. Override this to provide a custom implementation.
      Returns:
      a new editor component
      Since:
      1.6

    • setItem

      public void setItem(Object anObject)
      Sets the item that should be edited.
      Specified by:
      setItem in interface ComboBoxEditor
      Parameters:
      anObject - the displayed value of the editor

    • getItem

      public Object getItem()
      Description copied from interface: ComboBoxEditor
      Returns the edited item
      Specified by:
      getItem in interface ComboBoxEditor
      Returns:
      the edited item

    • selectAll

      public void selectAll()
      Description copied from interface: ComboBoxEditor
      Ask the editor to start editing and to select everything
      Specified by:
      selectAll in interface ComboBoxEditor

    • focusGained

      public void focusGained(FocusEvent e)
      Description copied from interface: FocusListener
      Invoked when a component gains the keyboard focus.
      Specified by:
      focusGained in interface FocusListener
      Parameters:
      e - the event to be processed

    • focusLost

      public void focusLost(FocusEvent e)
      Description copied from interface: FocusListener
      Invoked when a component loses the keyboard focus.
      Specified by:
      focusLost in interface FocusListener
      Parameters:
      e - the event to be processed

    • addActionListener

      public void addActionListener(ActionListener l)
      Description copied from interface: ComboBoxEditor
      Add an ActionListener. An action event is generated when the edited item changes
      Specified by:
      addActionListener in interface ComboBoxEditor
      Parameters:
      l - an ActionListener

    • removeActionListener

      public void removeActionListener(ActionListener l)
      Description copied from interface: ComboBoxEditor
      Remove an ActionListener
      Specified by:
      removeActionListener in interface ComboBoxEditor
      Parameters:
      l - an ActionListener