Module java.desktop
Package javax.swing.plaf.basic

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 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

    • mouseReleased

      public void mouseReleased(MouseEvent e)
      Invoked when a mouse button has been released on a component.
      Parameters:
      e - the event to be processed

    • 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:
      if scrolling should occur

    • 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

    • mouseMoved

      public void mouseMoved(MouseEvent e)
      Invoked when the mouse cursor has been moved onto a component but no buttons have been pushed.
      Specified by:
      mouseMoved in interface MouseMotionListener
      Overrides:
      mouseMoved in class MouseAdapter
      Parameters:
      e - the event to be processed