Class BasicSliderUI.TrackListener

java.lang.Object
java.awt.event.MouseAdapter
javax.swing.event.MouseInputAdapter
javax.swing.plaf.basic.BasicSliderUI.TrackListener
All Implemented Interfaces:
MouseListener, MouseMotionListener, MouseWheelListener, EventListener, MouseInputListener
Enclosing class:
BasicSliderUI
public class BasicSliderUI.TrackListener extends MouseInputAdapter
Track mouse movements. This class should be treated as a "protected" inner class. Instantiate it only within subclasses of Foo.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected int
    currentMouseX
    Current mouse x.
    protected int
    currentMouseY
    Current mouse y.
    protected int
    offset
    The offset

  • Constructor Summary

    Constructors
    Constructor
    Description
    TrackListener()
    Constructs a TrackListener.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    mouseDragged(MouseEvent e)
    Set the models value to the position of the top/left of the thumb relative to the origin of the track.
    void
    mousePressed(MouseEvent e)
    If the mouse is pressed above the "thumb" component then reduce the scrollbars value by one page ("page up"), otherwise increase it by one page.
    boolean
    shouldScroll(int direction)
    Returns if scrolling should occur.

    Methods declared in class MouseAdapter

    mouseClicked, mouseEntered, mouseExited, mouseMoved, mouseReleased, mouseWheelMoved
    Modifier and Type
    Method
    Description
    void
    mouseClicked(MouseEvent e)
    Invoked when the mouse button has been clicked (pressed and released) on a component.
    void
    mouseEntered(MouseEvent e)
    Invoked when the mouse enters a component.
    void
    mouseExited(MouseEvent e)
    Invoked when the mouse exits a component.
    void
    mouseMoved(MouseEvent e)
    Invoked when the mouse cursor has been moved onto a component but no buttons have been pushed.
    void
    mouseReleased(MouseEvent e)
    Invoked when a mouse button has been released on a component.
    void
    mouseWheelMoved(MouseWheelEvent e)
    Invoked when the mouse wheel is rotated.

    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

    • offset

      protected transient int offset
      The offset

    • currentMouseX

      protected transient int currentMouseX
      Current mouse x.

    • currentMouseY

      protected transient int currentMouseY
      Current mouse y.

  • Constructor Details

    • TrackListener

      public TrackListener()
      Constructs a TrackListener.

  • Method Details

    • mousePressed

      public void mousePressed(MouseEvent e)
      If the mouse is pressed above the "thumb" component then reduce the scrollbars value by one page ("page up"), otherwise increase it by one page. If there is no thumb then page up if the mouse is in the upper half of the track.
      Parameters:
      e - the event to be processed

    • shouldScroll

      public boolean shouldScroll(int direction)
      Returns if scrolling should occur.
      Parameters:
      direction - the direction
      Returns:
      true if scrolling should occur, otherwise false

    • mouseDragged

      public void mouseDragged(MouseEvent e)
      Set the models value to the position of the top/left of the thumb relative to the origin of the track.
      Specified by:
      mouseDragged in interface MouseMotionListener
      Overrides:
      mouseDragged in class MouseAdapter
      Parameters:
      e - the event to be processed