W3cubDocs

/OpenJDK 8 GUI

Class 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.

Constructors

DragController

protected DragController(MouseEvent e)

Methods

isValid

protected boolean isValid()

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.

getNeededLocation

protected int getNeededLocation(int x,
                                int y)

Returns the x argument, since this is used for horizontal splits.

continueDrag

protected void continueDrag(int newX,
                            int newY)

continueDrag

protected void continueDrag(MouseEvent e)

Messages dragDividerTo with the new location for the mouse event.

completeDrag

protected void completeDrag(int x,
                            int y)

completeDrag

protected void completeDrag(MouseEvent e)

Messages finishDraggingTo with the new location for the mouse event.

© 1993–2017, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.