public class TreeModelImpl implements TreeModel {
public Object getRoot () {
return ROOT;
}
public Object[] getChildren (Object parent, int from, int to) {
if (parent == ROOT)
return File.listRoots ();
return ((File) parent).listFiles ();
}
public boolean isLeaf (Object node) {
if (node == ROOT)
return false;
return ((File) node).isFile ();
}
}
And create a TreeView for this model:
JComponent treeView = Models.createView (
Models.createCompoundModel (
Arrays.asList (new Model[] {
new TreeModelImpl (), // TreeModel
new ArrayList () // list of ColumnModel s
})
)
);
public class NodeModelImpl implements NodeModel {
public String getDisplayName (Object node) {
if (node == ROOT) return "Name";
String name = ((File) node).getName ();
if (name.length () < 1) return ((File) node).getAbsolutePath ();
return name;
}
public String getIconBase (Object node) {
if (node == ROOT) return "folder";
if (((File) node).isDirectory ()) return "folder";
return "file";
}
public String getShortDescription (Object node) {
if (node == ROOT) return "Name";
return ((File) node).getAbsolutePath ();
}
}
public class NodeActionsProviderImpl implements NodeActionsProvider {
public Action[] getActions (final Object node) {
return new Action [] {
new AbstractAction ("Open") {
public void actionPerformed (ActionEvent e) {
performDefaultAction (node);
}
},
new AbstractAction ("Delete") {
public void actionPerformed (ActionEvent e) {
((File) node).delete ();
}
}
};
}
public void performDefaultAction (Object node) {
try {
JFrame f = new JFrame ("View");
f.getContentPane ().add (new JEditorPane (((File) node).toURL ()));
f.pack ();
f.show ();
} catch (Exception e) {
e.printStackTrace();
}
}
}
public class TableModelImpl implements TableModel {
public Object getValueAt (Object node, String columnID) {
try {
if (node == ROOT) return null;
if (columnID.equals ("sizeID")) {
if (((File) node).isDirectory ()) return "<dir>";
return "" + new FileInputStream ((File) node).getChannel ().size ();
}
} catch (Exception e) {
e.printStackTrace ();
}
return "";
}
public boolean isReadOnly (Object node, String columnID) {
return true;
}
public void setValueAt (Object node, String columnID, Object value) {
}
}
And initialization of columns looks like:
ArrayList columns = new ArrayList ();
columns.add (new ColumnModel () {
public String getID () { return "sizeID"; }
public String getDisplayName () { return "size"; }
public Class getType () { return String.class; }
});
JComponent treeTableView = Models.createView (
Models.createCompoundModel (
Arrays.asList (new Model[] {
new TreeModelImpl (), // TreeModel
new NodeModelImpl (), // NodeModel
new TableModelImpl (), // TableModel
new NodeActionsProviderImpl (), // NodeActionsProvider
columns // list of ColumnModel s
})
)
);