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

Class BasicSplitPaneDivider.DragController

java.lang.Object
javax.swing.plaf.basic.BasicSplitPaneDivider.DragController
Direct Known Subclasses:
BasicSplitPaneDivider.VerticalDragController
Enclosing class:
BasicSplitPaneDivider
protected class BasicSplitPaneDivider.DragController extends Object
Handles the events during a dragging session for a HORIZONTAL_SPLIT oriented split pane. This continually messages dragDividerTo and then when done messages finishDraggingTo. When an instance is created it should be messaged with isValid to insure that dragging can happen (dragging won't be allowed if the two views can not be resized).

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.

  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    DragController​(MouseEvent e)
    Constructs a new instance of DragController.

  • Method Summary

    Modifier and Type
    Method
    Description
    protected void
    completeDrag​(int x, int y)
    Messages finishDraggingTo with the new location for the mouse event.
    protected void
    completeDrag​(MouseEvent e)
    Messages finishDraggingTo with the new location for the mouse event.
    protected void
    continueDrag​(int newX, int newY)
    Messages dragDividerTo with the new location for the mouse event.
    protected void
    continueDrag​(MouseEvent e)
    Messages dragDividerTo with the new location for the mouse event.
    protected int
    getNeededLocation​(int x, int y)
    Returns the x argument, since this is used for horizontal splits.
    protected boolean
    isValid()
    Returns true if the dragging session is valid.
    protected int
    positionForMouseEvent​(MouseEvent e)
    Returns the new position to put the divider at based on the passed in MouseEvent.

    Methods declared in class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • DragController

      protected DragController​(MouseEvent e)
      Constructs a new instance of DragController.
      Parameters:
      e - a mouse event

  • Method Details

    • isValid

      protected boolean isValid()
      Returns true if the dragging session is valid.
      Returns:
      true if the dragging session is valid

    • positionForMouseEvent

      protected int positionForMouseEvent​(MouseEvent e)
      Returns the new position to put the divider at based on the passed in MouseEvent.
      Parameters:
      e - a mouse event
      Returns:
      the new position

    • getNeededLocation

      protected int getNeededLocation​(int x, int y)
      Returns the x argument, since this is used for horizontal splits.
      Parameters:
      x - an X coordinate
      y - an Y coordinate
      Returns:
      the X argument

    • continueDrag

      protected void continueDrag​(int newX, int newY)
      Messages dragDividerTo with the new location for the mouse event.
      Parameters:
      newX - an X coordinate
      newY - an Y coordinate

    • continueDrag

      protected void continueDrag​(MouseEvent e)
      Messages dragDividerTo with the new location for the mouse event.
      Parameters:
      e - a mouse event

    • completeDrag

      protected void completeDrag​(int x, int y)
      Messages finishDraggingTo with the new location for the mouse event.
      Parameters:
      x - an X coordinate
      y - an Y coordinate

    • completeDrag

      protected void completeDrag​(MouseEvent e)
      Messages finishDraggingTo with the new location for the mouse event.
      Parameters:
      e - a mouse event