Class BasicSplitPaneDivider

• java.lang.Object
• • java.awt.Component
  • • java.awt.Container
    • • javax.swing.plaf.basic.BasicSplitPaneDivider

All Implemented Interfaces:

ImageObserver, MenuContainer, PropertyChangeListener, Serializable, EventListener

public class BasicSplitPaneDivider
extends Container
implements PropertyChangeListener

Nested Classes

Nested Classes

Modifier and Type	Class and Description
protected class	BasicSplitPaneDivider.DividerLayout Used to layout a BasicSplitPaneDivider.
protected class	BasicSplitPaneDivider.DragController Handles the events during a dragging session for a HORIZONTAL_SPLIT oriented split pane.
protected class	BasicSplitPaneDivider.MouseHandler MouseHandler is responsible for converting mouse events (released, dragged...) into the appropriate DragController methods.
protected class	BasicSplitPaneDivider.VerticalDragController Handles the events during a dragging session for a VERTICAL_SPLIT oriented split pane.

Nested classes/interfaces inherited from class java.awt.Container

Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Fields

ONE_TOUCH_SIZE

protected static final int ONE_TOUCH_SIZE

Width or height of the divider based on orientation BasicSplitPaneUI adds two to this.

ONE_TOUCH_OFFSET

protected static final int ONE_TOUCH_OFFSET

dragger

protected BasicSplitPaneDivider.DragController dragger

Handles mouse dragging message to do the actual dragging.

splitPaneUI

protected BasicSplitPaneUI splitPaneUI

UI this instance was created from.

dividerSize

protected int dividerSize

Size of the divider.

hiddenDivider

protected Component hiddenDivider

Divider that is used for noncontinuous layout mode.

splitPane

protected JSplitPane splitPane

JSplitPane the receiver is contained in.

mouseHandler

protected BasicSplitPaneDivider.MouseHandler mouseHandler

Handles mouse events from both this class, and the split pane. Mouse events are handled for the splitpane since you want to be able to drag when clicking on the border of the divider, which is not drawn by the divider.

orientation

protected int orientation

Orientation of the JSplitPane.

leftButton

protected JButton leftButton

Button for quickly toggling the left component.

rightButton

protected JButton rightButton

Button for quickly toggling the right component.

Constructors

BasicSplitPaneDivider

public BasicSplitPaneDivider(BasicSplitPaneUI ui)

Creates an instance of BasicSplitPaneDivider. Registers this instance for mouse events and mouse dragged events.

Methods

setBasicSplitPaneUI

public void setBasicSplitPaneUI(BasicSplitPaneUI newUI)

Sets the SplitPaneUI that is using the receiver.

getBasicSplitPaneUI

public BasicSplitPaneUI getBasicSplitPaneUI()

Returns the SplitPaneUI the receiver is currently in.

setDividerSize

public void setDividerSize(int newSize)

Sets the size of the divider to newSize. That is the width if the splitpane is HORIZONTAL_SPLIT, or the height of VERTICAL_SPLIT.

getDividerSize

public int getDividerSize()

Returns the size of the divider, that is the width if the splitpane is HORIZONTAL_SPLIT, or the height of VERTICAL_SPLIT.

setBorder

public void setBorder(Border border)

Sets the border of this component.

Since:

1.3

getBorder

public Border getBorder()

Returns the border of this component or null if no border is currently set.

Returns:

the border object for this component

Since:

1.3

See Also:

setBorder(javax.swing.border.Border)

getInsets

public Insets getInsets()

If a border has been set on this component, returns the border's insets, else calls super.getInsets.

Overrides:

getInsets in class Container

Returns:

the value of the insets property.

See Also:

setBorder(javax.swing.border.Border)

setMouseOver

protected void setMouseOver(boolean mouseOver)

Sets whether or not the mouse is currently over the divider.

Parameters:

mouseOver - whether or not the mouse is currently over the divider

Since:

1.5

isMouseOver

public boolean isMouseOver()

Returns whether or not the mouse is currently over the divider

Returns:

whether or not the mouse is currently over the divider

Since:

1.5

getPreferredSize

public Dimension getPreferredSize()

Returns dividerSize x dividerSize

Overrides:

getPreferredSize in class Container

Returns:

an instance of Dimension that represents the preferred size of this container.

See Also:

Container.getMinimumSize(), Container.getMaximumSize(), Container.getLayout(), LayoutManager.preferredLayoutSize(Container), Component.getPreferredSize()

getMinimumSize

public Dimension getMinimumSize()

Returns dividerSize x dividerSize

Overrides:

getMinimumSize in class Container

Returns:

an instance of Dimension that represents the minimum size of this container.

See Also:

Container.getPreferredSize(), Container.getMaximumSize(), Container.getLayout(), LayoutManager.minimumLayoutSize(Container), Component.getMinimumSize()

propertyChange

public void propertyChange(PropertyChangeEvent e)

Property change event, presumably from the JSplitPane, will message updateOrientation if necessary.

Specified by:

propertyChange in interface PropertyChangeListener

Parameters:

e - A PropertyChangeEvent object describing the event source and the property that has changed.

paint

public void paint(Graphics g)

Paints the divider.

Overrides:

paint in class Container

Parameters:

g - the specified Graphics window

See Also:

Component.update(Graphics)

oneTouchExpandableChanged

protected void oneTouchExpandableChanged()

Messaged when the oneTouchExpandable value of the JSplitPane the receiver is contained in changes. Will create the leftButton and rightButton if they are null. invalidates the receiver as well.

createLeftOneTouchButton

protected JButton createLeftOneTouchButton()

Creates and return an instance of JButton that can be used to collapse the left component in the split pane.

createRightOneTouchButton

protected JButton createRightOneTouchButton()

Creates and return an instance of JButton that can be used to collapse the right component in the split pane.

prepareForDragging

protected void prepareForDragging()

Message to prepare for dragging. This messages the BasicSplitPaneUI with startDragging.

dragDividerTo

protected void dragDividerTo(int location)

Messages the BasicSplitPaneUI with dragDividerTo that this instance is contained in.

finishDraggingTo

protected void finishDraggingTo(int location)

Messages the BasicSplitPaneUI with finishDraggingTo that this instance is contained in.