Package org.fife.rsta.ac.xml.tree

Class XmlTreeCellRenderer.XmlTreeCellUI

java.lang.Object

javax.swing.plaf.ComponentUI

javax.swing.plaf.LabelUI

javax.swing.plaf.basic.BasicLabelUI

org.fife.rsta.ac.xml.tree.XmlTreeCellRenderer.XmlTreeCellUI

All Implemented Interfaces:

PropertyChangeListener, EventListener

Enclosing class:

XmlTreeCellRenderer

private static class XmlTreeCellRenderer.XmlTreeCellUI
extends BasicLabelUI

Custom UI for our renderer. This is basically a performance hack to avoid using HTML for our rendering. Swing's HTML rendering engine is very slow, making tree views many thousands of nodes large using HTML very slow for expand operations (our expandInitialNodes() method). This is caused by calls to get the preferred size of each HTML view. A "plain text" renderer that can paint the different colors itself is much faster (~ 4x faster), but still doesn't eliminate the issue for huge trees.

Field Summary

Fields inherited from class javax.swing.plaf.basic.BasicLabelUI

labelUI

Constructor Summary

Constructors

Modifier	Constructor	Description
private	XmlTreeCellUI()

Method Summary

Modifier and Type	Method	Description
protected void	installDefaults(JLabel label)
protected void	paintEnabledText(JLabel l, Graphics g, String s, int textX, int textY)
protected void	uninstallDefaults(JLabel label)

Methods inherited from class javax.swing.plaf.basic.BasicLabelUI

createUI, getBaseline, getBaselineResizeBehavior, getMaximumSize, getMinimumSize, getPreferredSize, installComponents, installKeyboardActions, installListeners, installUI, layoutCL, paint, paintDisabledText, propertyChange, uninstallComponents, uninstallKeyboardActions, uninstallListeners, uninstallUI

Methods inherited from class javax.swing.plaf.ComponentUI

contains, getAccessibleChild, getAccessibleChildrenCount, update

Methods inherited from class java.lang.Object

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

Constructor Details

XmlTreeCellUI

private XmlTreeCellUI()

Method Details

installDefaults

protected void installDefaults(JLabel label)

Overrides:

installDefaults in class BasicLabelUI

paintEnabledText

protected void paintEnabledText(JLabel l,
 Graphics g,
 String s,
 int textX,
 int textY)

Overrides:

paintEnabledText in class BasicLabelUI

uninstallDefaults

protected void uninstallDefaults(JLabel label)

Overrides:

uninstallDefaults in class BasicLabelUI