To tentando criar uma Jtree q lista os arquivos do PC, mas quero um botao para adicionar os arquivos novos e remover os arquivos q foram deletados do PC
to usando esse modelo q achei na net:
alguem tem algum artigo ou classe q pode me ajudar?
vlw!
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import java.io.File;
import java.util.Iterator;
import java.util.Vector;
import javax.swing.event.TreeModelEvent;
import javax.swing.event.TreeModelListener;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreePath;
class FileSystemModel implements TreeModel {
private File root;
private Vector listeners = new Vector();
public FileSystemModel(File rootDirectory) {
root = rootDirectory;
}
public Object getRoot() {
return root;
}
public Object getChild(Object parent, int index) {
File directory = (File) parent;
String[] children = directory.list();
<a href="//System.out.println">//System.out.println</a>(“getChild->”+parent.toString()+"|"+index);
return new TreeFile(directory, children[index]);
}
public int getChildCount(Object parent) {
File file = (File) parent;
<a href="//System.out.println">//System.out.println</a>(“getChildCount->”+parent.toString());
if (file.isDirectory()) {
String[] fileList = file.list();
if (fileList != null)
return file.list().length;
}
return 0;
}
public boolean isLeaf(Object node) {
File file = (File) node;
return file.isFile();
}
public int getIndexOfChild(Object parent, Object child) {
File directory = (File) parent;
File file = (File) child;
String[] children = directory.list();
for (int i = 0; i < children.length; i++) {
if (file.getName().equals(children[i])) {
return i;
}
}
return -1;
}
public void valueForPathChanged(TreePath path, Object value) {
<a href="//System.out.println">//System.out.println</a>(“ValueforpathChanged:”+path.toString()+"|"+value.toString());
File oldFile = (File) path.getLastPathComponent();
String fileParentPath = oldFile.getParent();
String newFileName = (String) value;
File targetFile = new File(fileParentPath, newFileName);
oldFile.renameTo(targetFile);
File parent = new File(fileParentPath);
int[] changedChildrenIndices = { getIndexOfChild(parent, targetFile) };
Object[] changedChildren = { targetFile };
fireTreeNodesChanged(path.getParentPath(), changedChildrenIndices, changedChildren);
}
private void fireTreeNodesChanged(TreePath parentPath, int[] indices, Object[] children) {
<a href="//System.out.println">//System.out.println</a>(“firetreenodesChanged:”+parentPath.toString()+"|"+children.toString());
TreeModelEvent event = new TreeModelEvent(this, parentPath, indices, children);
Iterator iterator = listeners.iterator();
TreeModelListener listener = null;
while (iterator.hasNext()) {
listener = (TreeModelListener) iterator.next();
listener.treeNodesChanged(event);
}
}
public void addTreeModelListener(TreeModelListener listener) {
listeners.add(listener);
}
public void removeTreeModelListener(TreeModelListener listener) {
listeners.remove(listener);
}
private class TreeFile extends File {
public TreeFile(File parent, String child) {
super(parent, child);
}
public String toString() {
return getName();
}
}
}