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java.lang.Objectorg.apache.poi.contrib.poibrowser.ExtendableTreeCellRenderer
public class ExtendableTreeCellRenderer
This is a TreeCellRenderer implementation which is able
to render arbitrary objects. The ExtendableTreeCellRenderer
does not do the rendering itself but instead dispatches to
class-specific renderers. A class/renderer pair must be registered
using the register(java.lang.Class, javax.swing.tree.TreeCellRenderer) method. If a class has no registered
renderer, the renderer of its closest superclass is used. Since the
ExtendableTreeCellRenderer always has a default renderer
for the Object class, rendering is always possible. The
default Object renderer can be replaced by another renderer
but it cannot be unregistered.
| Field Summary | |
|---|---|
protected java.util.Map |
renderers
Maps classes to renderers. |
| Constructor Summary | |
|---|---|
ExtendableTreeCellRenderer()
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| Method Summary | |
|---|---|
protected javax.swing.tree.TreeCellRenderer |
findRenderer(java.lang.Class c)
Find the renderer for the specified class. |
java.awt.Component |
getTreeCellRendererComponent(javax.swing.JTree tree,
java.lang.Object value,
boolean selected,
boolean expanded,
boolean leaf,
int row,
boolean hasFocus)
Renders an object in a tree cell depending of the object's class. |
void |
register(java.lang.Class c,
javax.swing.tree.TreeCellRenderer renderer)
Registers a renderer for a class. |
void |
unregister(java.lang.Class c)
Unregisters a renderer for a class. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
protected java.util.Map renderers
Maps classes to renderers.
| Constructor Detail |
|---|
public ExtendableTreeCellRenderer()
| Method Detail |
|---|
public void register(java.lang.Class c,
javax.swing.tree.TreeCellRenderer renderer)
Registers a renderer for a class.
public void unregister(java.lang.Class c)
Unregisters a renderer for a class. The renderer for the
Object class cannot be unregistered.
public java.awt.Component getTreeCellRendererComponent(javax.swing.JTree tree,
java.lang.Object value,
boolean selected,
boolean expanded,
boolean leaf,
int row,
boolean hasFocus)
Renders an object in a tree cell depending of the object's class.
getTreeCellRendererComponent in interface javax.swing.tree.TreeCellRendererTreeCellRenderer.getTreeCellRendererComponent(javax.swing.JTree, java.lang.Object, boolean, boolean, boolean, int, boolean)protected javax.swing.tree.TreeCellRenderer findRenderer(java.lang.Class c)
Find the renderer for the specified class.
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