Mauvaise affichage dans un TreeViewer

Bonjour,

Je suis étudiant et nouveau avec la programmation Eclipse RCP et je rencontre un petit problème avec un logiciel que nous devons développer dans le cadre d'un projet.

Voilà, j'ai un gestionnaire de fichiers que je développe. Dans ce gestionnaire, je devrais pouvoir effacer un répertoire ou un fichier, les renommer, etc..

Mon problème est avec le renommage des fichiers. J'ai un menu contextuel où j'ai une option pour renommer un fichier ou un répertoire. Par la suite, j'ai mis en place, un EditingSupport où je peux éditer le nom des mes fichiers ou répertoires directement dans le TreeViewer, sans ouvrir un dialog box qui me demande le nouveau nom et ensuite aller renommer l'objet.

Avant de pouvoir mettre en place ce mécanisme de renommage directe, mon TreeViewer s'affichait correctement mais depuis, je ne vois que les noeuds parents et lorsque je fait défiler ces noeuds parents, je ne vois plus les noms.

Par exemple :

REPERTOIRE
---SUBREPERTOIRE
---SUBFICHIER

Le programme actuel n'affiche pas les noms des éléments SUBREPERTOIRE et SUBFICHIER. Je vois le petit icône pour pouvoir éclater SUBREPERTOIRE et lors de l'éclatement, je ne vois une fois de plus pas les noms des fichiers et répertoires que contient SUBREPERTOIRE.

Voici mon code source :
NavigationView.java

Code:

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package test;
 
import java.awt.Color;
import java.io.File;
import java.util.ArrayList;
 
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.CellLabelProvider;
import org.eclipse.jface.viewers.ColumnLabelProvider;
import org.eclipse.jface.viewers.ColumnViewerEditor;
import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent;
import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy;
import org.eclipse.jface.viewers.EditingSupport;
import org.eclipse.jface.viewers.FocusCellOwnerDrawHighlighter;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.ITreeViewerListener;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.StyledCellLabelProvider;
import org.eclipse.jface.viewers.StyledString;
import org.eclipse.jface.viewers.TextCellEditor;
import org.eclipse.jface.viewers.TreeExpansionEvent;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.TreeViewerColumn;
import org.eclipse.jface.viewers.TreeViewerEditor;
import org.eclipse.jface.viewers.TreeViewerFocusCellManager;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyleRange;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.ProgressBar;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.part.ViewPart;
 
public class NavigationView extends ViewPart {
    public static final String ID = "Test.navigationView";
    private static TreeViewer viewer;
    private File racine;
    private TreeParent root;
    private Display display = PlatformUI.getWorkbench().getDisplay();
    private ProgressBar progressBar;
 
    public static TreeViewer getViewer(){
        return viewer;
    }
 
    class TreeObject {
        private String name;
        private TreeParent parent;
 
        public TreeObject(String name) {
            this.name = name;
        }
        public String getName() {
            return name;
        }
        public void setParent(TreeParent parent) {
            this.parent = parent;
        }
        public TreeParent getParent() {
            return parent;
        }
        public String toString() {
            return getName();
        }
 
        public String getPath(){
            String retour = this.name;
            if (parent != null){
                retour = parent.getPath() + File.separator + retour;
            }
            return retour;
        }
 
        public String toString(String indent){
            String retour = "";
 
            retour += indent + this.name;
 
            return retour;
        }
    }
 
    class TreeParent extends TreeObject {
        private ArrayList<TreeObject> children;
        public TreeParent(String name) {
            super(name);
            children = new ArrayList<TreeObject>();
        }
        public void addChild(TreeObject child) {
            children.add(child);
            child.setParent(this);
        }
        public void removeChild(TreeObject child) {
            children.remove(child);
            child.setParent(null);
        }
 
        public void removeAllChild(){
            while (this.hasChildren()){
                removeChild(this.children.get(0));
            }
        }
        public TreeObject[] getChildren() {
            return (TreeObject[]) children.toArray(new TreeObject[children.size()]);
        }
        public boolean hasChildren() {
            return children.size()>0;
        }
 
        public String toString(String indent){
            String retour = "";
 
            retour += indent + super.name + "\n";
            for (Object to : children){
                 retour += ((TreeObject)to).toString(indent + " - ") + "\n";
            }
 
            return retour;
        }
    }
 
    class ViewContentProvider implements IStructuredContentProvider, 
                                           ITreeContentProvider {
 
        public void inputChanged(Viewer v, Object oldInput, Object newInput) {
        }
 
        public void dispose() {
        }
 
        public Object[] getElements(Object parent) {
            return getChildren(parent);
        }
 
        public Object getParent(Object child) {
            if (child instanceof TreeObject) {
                return ((TreeObject)child).getParent();
            }
            return null;
        }
 
        public Object[] getChildren(Object parent) {
            if (parent instanceof TreeParent) {
                return ((TreeParent)parent).getChildren();
            }
            return new Object[0];
        }
 
        public boolean hasChildren(Object parent) {
            if (parent instanceof TreeParent)
                return ((TreeParent)parent).hasChildren();
            return false;
        }
    }
 
    class ViewLabelProvider extends LabelProvider {
 
        public String getText(Object obj) {
            return obj.toString();
        }
        public Image getImage(Object obj) {
            String imageKey = ISharedImages.IMG_OBJ_ELEMENT;
            if (obj instanceof TreeParent)
               imageKey = ISharedImages.IMG_OBJ_FOLDER;
            return PlatformUI.getWorkbench().getSharedImages().getImage(imageKey);
        }
    }
 
    /**
     * We will set up a dummy model to initialize tree heararchy. In real
     * code, you will connect to a real model and expose its hierarchy.
     */
    private TreeObject createDummyModel() {
 
        racine = new File(File.separator);
        root = new TreeParent(File.separator);
 
        for (String filDir : racine.list()){
            File f = new File(File.separator + filDir);
            TreeObject to = null;
            if (f.isFile()){
                    to = new TreeObject(filDir);
            }else{
                if (f.isDirectory()){
                    File fTemp = new File(filDir);
 
                    TreeParent tp = new TreeParent(fTemp.getName());
                    if (f.list() != null){
                        tp.addChild(new TreeObject(""));
                    }
                    to = tp;
                }
            }
            if (to != null) root.addChild(to);
        }
        System.out.println(root.toString("-"));
        return root; 
    }
 
    public void exploreDirectory(String filDir, TreeParent tp){
 
        File f = new File(filDir);
        tp.removeAllChild();
 
        if (f.list() != null ){
            for (String filDirTemp : f.list()){
                File fTemp = new File(filDir + File.separator + filDirTemp);
                TreeObject to = null;
                if (fTemp.isFile()){
                    to = new TreeObject(filDirTemp);
                }else{
                    if (fTemp.isDirectory()){
                        to = new TreeParent(filDirTemp);
                        File fTemp2 = new File(filDir + File.separator + filDirTemp);
 
                        if (fTemp2.list() != null){
                            ((TreeParent)(to)).addChild(new TreeObject(""));
                        }
                    }
                }
                if (to != null) {
                    tp.addChild(to);
                }
            }
        }
    } 
 
    /**
     * This is a callback that will allow us to create the viewer and initialize
     * it.
     */
    public void createPartControl(Composite parent) {
        Shell shell = new Shell(display);
        shell.setLayout(new GridLayout());
 
        progressBar = new ProgressBar(shell, SWT.HORIZONTAL | SWT.SMOOTH);
        progressBar.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
        progressBar.setMinimum(0);
        progressBar.setMaximum(30);
 
        viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
        viewer.setContentProvider(new ViewContentProvider());
        viewer.setLabelProvider(new ViewLabelProvider());
        createDummyModel();
        viewer.setInput(root);
 
        viewer.addTreeListener(new ITreeViewerListener() {
 
            @Override
            public void treeExpanded(TreeExpansionEvent event) {
                TreeParent tp = (TreeParent)event.getElement();
 
                exploreDirectory(tp.getPath(), tp);
 
                display.asyncExec(new Runnable(){
                       public void run(){
                          //LongRunningOperation lp = new LongRunningOperation(display, progressBar);
                          //lp.start();
                          viewer.refresh();
                       }
                });
            }
 
            @Override
            public void treeCollapsed(TreeExpansionEvent event) {}
        });
 
        TreeViewerFocusCellManager focusCellManager = new TreeViewerFocusCellManager(viewer,new FocusCellOwnerDrawHighlighter(viewer));
 
        ColumnViewerEditorActivationStrategy actSupport = new ColumnViewerEditorActivationStrategy(viewer) {
            protected boolean isEditorActivationEvent(ColumnViewerEditorActivationEvent event) {
                return event.eventType == ColumnViewerEditorActivationEvent.PROGRAMMATIC;
            }
        };
 
        TreeViewerEditor.create(viewer, focusCellManager, actSupport, ColumnViewerEditor.TABBING_HORIZONTAL
                | ColumnViewerEditor.TABBING_MOVE_TO_ROW_NEIGHBOR
                | ColumnViewerEditor.TABBING_VERTICAL | ColumnViewerEditor.KEYBOARD_ACTIVATION);
 
        final TextCellEditor textCellEditor = new TextCellEditor(viewer.getTree());
 
        TreeViewerColumn column = new TreeViewerColumn(viewer, SWT.NONE);
 
        column.getColumn().setWidth(200);
 
        column.setLabelProvider(new CellLabelProvider() {
 
            @Override
            public void update(ViewerCell cell) {
                System.out.println(cell.getElement().toString());
            }
        });
 
        column.setEditingSupport(new EditingSupport(viewer) {
 
            @Override
            protected void setValue(Object element, Object value) {
                File fich = new File(element.toString());
                System.out.println(fich.getAbsolutePath());
                System.out.println(value.toString());
                fich.renameTo(new File(value.toString()));
                viewer.update(element, null);
            }
 
            @Override
            protected Object getValue(Object element) {
                // TODO Auto-generated method stub
                //System.out.println(((TreeObject)element).getName().toString());
                return ((TreeObject)element).getName();
            }
 
            @Override
            protected CellEditor getCellEditor(Object element) {
                // TODO Auto-generated method stub
                return textCellEditor;
            }
 
            @Override
            protected boolean canEdit(Object element) {
                // TODO Auto-generated method stub
                return true;
            }
        });
 
        MenuManager menuMgr = new MenuManager("#PopupMenu");
        menuMgr.setRemoveAllWhenShown(true);
        Menu menu = menuMgr.createContextMenu(viewer.getControl());
 
        viewer.getControl().setMenu(menu);
        getSite().registerContextMenu(menuMgr, viewer);
 
        parent.update();
 
    }
 
    class LongRunningOperation extends Thread {
          private Display display;
 
          private ProgressBar progressBar;
 
          public LongRunningOperation(Display display, ProgressBar progressBar) {
            this.display = display;
            this.progressBar = progressBar;
          }
 
          public void run() {
              for (int i = 0; i < 30; i++) {
                  try {
                      Thread.sleep(1000);
                  } catch (InterruptedException e) {}
 
                  display.asyncExec(new Runnable() {
                      public void run() {
                          if (progressBar.isDisposed()) return;
                          progressBar.setSelection(progressBar.getSelection() + 1);
                      }
                  });
              }
          }
    }
 
    /**
     * Passing the focus request to the viewer's control.
     */
    public void setFocus() {
        viewer.getControl().setFocus();
    }
}

ManipFichier.java

Code:

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package test;
 
import java.io.File;
 
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.CellEditor;
import org.eclipse.jface.viewers.ColumnViewerEditor;
import org.eclipse.jface.viewers.ColumnViewerEditorActivationEvent;
import org.eclipse.jface.viewers.ColumnViewerEditorActivationStrategy;
import org.eclipse.jface.viewers.EditingSupport;
import org.eclipse.jface.viewers.FocusCellOwnerDrawHighlighter;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TextCellEditor;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.TreeViewerColumn;
import org.eclipse.jface.viewers.TreeViewerEditor;
import org.eclipse.jface.viewers.TreeViewerFocusCellManager;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.PlatformUI;
import test.NavigationView.TreeObject;
import test.NavigationView.TreeParent;
 
public class ManipFichiers implements IViewActionDelegate{
    public ISelection mySelection;
    public Display display = PlatformUI.getWorkbench().getDisplay();
    public TreeViewer viewer;
 
    public ManipFichiers(){
        viewer = NavigationView.getViewer();
    }
 
    @Override
    public void run(IAction action) {
        TreeParent tp = ((TreeObject)((IStructuredSelection)mySelection).getFirstElement()).getParent();
        final String fichTemp = ((TreeObject)((IStructuredSelection)mySelection).getFirstElement()).getPath();
        NavigationView nv = new NavigationView();
        File fichier = new File(fichTemp);
 
        String actionEnCours = action.getId().toString();
 
        if (actionEnCours.compareTo("ActPst") == 0){
            System.out.println("Paste");
        }else if (actionEnCours.compareTo("ActCpy") == 0){
            System.out.println("Copy");
        }else if (actionEnCours.compareTo("ActCut") == 0){
            System.out.println("Cut");
        }else if (actionEnCours.compareTo("ActDel") == 0){
            System.out.println("Delete");
 
            deleteFileOrDirectory(fichier.toString());
 
            nv.exploreDirectory(tp.getPath(), tp);
 
            display.asyncExec(new Runnable(){
                   public void run(){
                      viewer.refresh();
                   }
            });
        }else if (actionEnCours.compareTo("ActRen") == 0){
            System.out.println("Rename");
            viewer.editElement(((IStructuredSelection) viewer.getSelection()).getFirstElement(), viewer.getColumnViewerEditor().getFocusCell().getColumnIndex());
        }
    }
 
    @Override
    public void selectionChanged(IAction action, ISelection selection) {
        mySelection = selection;
    }
 
    @Override
    public void init(IViewPart view) {}
 
    public void deleteFileOrDirectory(String fileName){
        File f = new File(fileName);
        f = f.getAbsoluteFile();
        f.setWritable(true);
 
        // Make sure the file or directory exists and isn't write protected
        if (!f.exists()) {
            throw new IllegalArgumentException("Suppression : Fichier inexistant " + fileName);
        }
 
        if (!f.canWrite()) {
            throw new IllegalArgumentException("Suppression : En lecture seule " + fileName);
        }
 
        // If it is a directory
        if (f.isDirectory()) {
            File[] files = f.listFiles();
            for (int i = 0; i < files.length; i++){
                if(files[i].isDirectory()) { 
                    deleteFileOrDirectory(files[i].toString()); 
                }else{ 
                    files[i].delete(); 
                } 
            }
        }
 
        f.delete();
    }
}

Et une capture d'écran du problème
http://www.developpez.net/forums/att...1&d=1353689569

Quelqu'un saurait-il m'aider à élucider ce problème ? Y a t-il un lien avec le fichier plugin.xml ?

Merci d'avance pour votre aide.