Java Code Examples for org.eclipse.swt.widgets.TreeItem#getData()

public void handleEvent( Event event )
{
	if ( event.widget == null || !( event.widget instanceof TreeItem ) )
		setEnabled( false );
	TreeItem item = (TreeItem) event.widget;
	if ( item == null )
	{
		super.setEnabled( false );
		return;
	}			
	Object selectedElement = item.getData( );
	if ( selectedElement == null )
		super.setEnabled( false );
	else
		super.setEnabled( selectedElement instanceof ReportDesignHandle );
}
 

@Override
public void handleEvent(Event event) {
  if (event.widget == resourcesUI &&
      event.type == SWT.Expand) {
    TreeItem expandedNode = (TreeItem) event.item;
    TreeItem maybeDummy = expandedNode.getItem(0);
    if (null == maybeDummy.getData()) {
      maybeDummy.dispose();
      IResource parentResource = (IResource)expandedNode.getData();
      try {
        populate(expandedNode, ((IContainer)parentResource).members());
      } catch (CoreException e) {
        throw new InternalErrorCDE("unhandled exception", e);
      }
    }
  } else if (event.widget == resourcesUI && event.type == SWT.Selection) {
    copyValuesFromGUI();
  }
  super.handleEvent(event);
}
 

private String getTreeDir(TreeItem item) {
	String dir = "";

	Object data = item.getData();

	if (data instanceof Integer)
		return null;
	if (data instanceof String)
		dir = (String) data;
	else if (data instanceof Project)
		dir = ((Project) data).getDir();
	else
		dir = ((Project) item.getParentItem().getData()).getDir();

	return dir;
}
 

protected void removeItem(TreeItem[] selection) {
	int lastResult = RemFileShell.CANCEL;

	if (selection.length == 0)
		return;

	for (TreeItem cur : selection) {
		Object data = cur.getData();

		if (data instanceof Integer)
			removeSym(cur);
		else if (data instanceof String)
			removeDir(cur);
		else if (data instanceof Project)
			removeProject(cur);
		else
			lastResult = removeFile(cur, lastResult);
	}
}
 

private void removeProject(TreeItem cur) {
	while (cur != null && !(cur.getData() instanceof Project))
		cur = cur.getParentItem();

	if (cur == null)
		return;

	Project proj = (Project) cur.getData();
	RemProjShell.Result result = RemProjShell.confirm(display, shell, proj);

	if (result == RemProjShell.Result.OK_KEEP) {
		cur.dispose();
		ProjectManager.removeProject(proj, false);
	} else if (result == RemProjShell.Result.OK_DELETE) {
		cur.dispose();
		ProjectManager.removeProject(proj, true);
	}

	tree.notifyListeners(SWT.Selection, null);
}
 

private void handleRenameItem(TreeItem item, String newName) {
	if (item.getData() instanceof SymitarFile) {
		// Set SymitarFile name
		if (((SymitarFile) item.getData()).saveName(newName))
			item.setText(newName); // Set name in tree

		// Now, set name in any open tabs
		for (CTabItem c : mainfolder.getItems())
			if (c.getData("file") == item.getData()) // Be sure it's the
				// exact same
				// instance, like it
				// should be
			{
				c.setText(newName);
				if (c.getControl() instanceof EditorComposite) {
					c.setData("modified", false);
					((EditorComposite) c.getControl()).updateModified();
				}
			}
	}

	if (item.getData() instanceof Project) {
		((Project) item.getData()).setName(newName);
		item.setText(newName);
	}
}
 

@Override
public String getLabel(TreeItem treeItem, int col) {
	Item item = (Item) treeItem.getData();
	switch (col) {
	case 0:
		return label.getText(item, 0);
	case 1:
		return label.getText(item, 1);
	case 2:
		return format(item.flowAmount());
	case 3:
		if (item.flowAmount() == null)
			return "";
		return Labels.refUnit(item.flow);
	case 4:
		return format(item.impactFactor());
	case 5:
		if (item.impactFactor() == null)
			return "";
		return item.impactFactorUnit();
	case 6:
		return label.getText(item, 4);
	case 7:
		return label.getText(item, 5);
	}
	return null;
}
 

private void treeDblClick( Event event ) {
  StyledTextComp wScript = getStyledTextComp();
  Point point = new Point( event.x, event.y );
  TreeItem item = wTree.getItem( point );

  // Qualifikation where the Click comes from
  if ( item != null && item.getParentItem() != null ) {
    if ( item.getParentItem().equals( wTreeScriptsItem ) ) {
      setActiveCtab( item.getText() );
    } else if ( !item.getData().equals( "Function" ) ) {
      int iStart = wScript.getCaretOffset();
      int selCount = wScript.getSelectionCount(); // this selection will be replaced by wScript.insert
      iStart = iStart - selCount; // when a selection is already there we need to subtract the position
      if ( iStart < 0 ) {
        iStart = 0; // just safety
      }
      String strInsert = (String) item.getData();
      if ( strInsert.equals( "jsFunction" ) ) {
        strInsert = item.getText();
      }
      wScript.insert( strInsert );
      wScript.setSelection( iStart, iStart + strInsert.length() );
    }
  }
  /*
   * if (item != null && item.getParentItem()!=null && !item.getData().equals("Function")) { int iStart =
   * wScript.getCaretOffset(); String strInsert =(String)item.getData(); if(strInsert.equals("jsFunction")) strInsert
   * = (String)item.getText(); wScript.insert(strInsert); wScript.setSelection(iStart,iStart+strInsert.length()); }
   */
}
 

private void selectFirstElement() {
	if (fTreeViewer.getTree().getItemCount() > 0) {
		TreeItem item= fTreeViewer.getTree().getItem(0);
		if (item.getData() != null) {
			fTreeViewer.reveal(item.getData());
			Object data= getFirstSimilarElement(item);
			if (data != null) {
				fTreeViewer.setSelection(new StructuredSelection(data));
			}
		}
	}
	fTreeViewer.getTree().setFocus();
}
 

@Override
public void handleEvent(Event event) {

  TreeItem treeItem = (TreeItem) event.item;

  /*
   * do not adapt the object or we will draw into widget / tree items that
   * should not be *decorated*
   */

  if (!(treeItem.getData() instanceof UserElement)) return;

  User user = ((UserElement) treeItem.getData()).getUser();

  Rectangle bounds = treeItem.getBounds(event.index);

  bounds.width = 15;
  bounds.x += 15;

  /*
   * make the rectangle a little bit smaller so it does not collide with
   * the edges when the tree item is selected
   */

  bounds.y += 2;
  bounds.height -= 4;

  Color background = SarosAnnotation.getUserColor(user);
  PaintUtils.drawRoundedRectangle(event.gc, bounds, background);
  background.dispose();
}
 

private void setBasicMode() {
    fAdvancedMode = false;
    fRefTimeColumn.setData(WIDTH_KEY, fRefTimeColumn.getWidth());
    fTargetTimeColumn.setData(WIDTH_KEY, fTargetTimeColumn.getWidth());
    for (TreeItem treeItem : fViewer.getViewer().getTree().getItems()) {
        Control editor = (Control) treeItem.getData(EDITOR_KEY);
        editor.setVisible(false);
    }
    fTargetTimeColumn.setWidth(0);
    fTargetTimeColumn.setResizable(false);
    fRefTimeColumn.setWidth(0);
    fRefTimeColumn.setResizable(false);
    fButtonViewerColumn.getColumn().setWidth(0);
    fAdvancedMessageLabel.setText(""); //$NON-NLS-1$
}
 

private void treeDblClick( Event event ) {
  StyledTextComp wScript = getStyledTextComp();
  Point point = new Point( event.x, event.y );
  TreeItem item = wTree.getItem( point );

  // Qualifikation where the Click comes from
  if ( item != null && item.getParentItem() != null ) {
    if ( item.getParentItem().equals( wTreeScriptsItem ) ) {
      setActiveCtab( item.getText() );
    } else if ( !item.getData().equals( "Function" ) ) {
      int iStart = wScript.getCaretOffset();
      int selCount = wScript.getSelectionCount(); // this selection will be replaced by wScript.insert
      iStart = iStart - selCount; // when a selection is already there we need to subtract the position
      if ( iStart < 0 ) {
        iStart = 0; // just safety
      }
      String strInsert = (String) item.getData();
      if ( strInsert.equals( "jsFunction" ) ) {
        strInsert = item.getText();
      }
      wScript.insert( strInsert );
      wScript.setSelection( iStart, iStart + strInsert.length() );
    }
  }
  /*
   * if (item != null && item.getParentItem()!=null && !item.getData().equals("Function")) { int iStart =
   * wScript.getCaretOffset(); String strInsert =(String)item.getData(); if(strInsert.equals("jsFunction")) strInsert
   * = (String)item.getText(); wScript.insert(strInsert); wScript.setSelection(iStart,iStart+strInsert.length()); }
   */
}
 

private static boolean itemEqualsElement(TreeItem item,
		INavigationElement<?> element) {
	INavigationElement<?> data = (INavigationElement<?>) item.getData();
	if (data == null)
		return false;
	return Objects.equal(data.getContent(), element.getContent());
}
 

private String getContentTypes(final TreeItem item, final String types) {
  String result = types;
  if (item.getChecked() && !item.getGrayed()) {
    if (!"".equals(types)) {
      result += "|";
    }
    result += item.getData();
  }
  for (final TreeItem child : item.getItems()) {
    result = getContentTypes(child, result);
  }
  return result;
}
 

private boolean isItemLocal(TreeItem item) {
	Object data = item.getData();

	if (data instanceof String)
		return true;
	else if (data instanceof Integer)
		return false;
	else if (data instanceof Project)
		return ((Project) data).getDir() != null;
	else
		return ((SymitarFile) data).isLocal();
}
 

private void addProject() {
	int sym = -1;
	String dir = null;

	TreeItem[] selection = tree.getSelection();
	if (selection.length != 1)
		return;

	TreeItem cur = selection[0];
	while (cur.getParentItem() != null)
		cur = cur.getParentItem();

	if (cur.getData() instanceof Integer)
		sym = (Integer) cur.getData();
	else if (cur.getData() instanceof String)
		dir = (String) cur.getData();

	if( dir == null && sym != -1 && !RepDevMain.SYMITAR_SESSIONS.get(sym).isConnected() ) {
		MessageBox err = new MessageBox(shell, SWT.OK | SWT.ICON_ERROR );
		err.setText("Can not create project");
		err.setMessage("Unable to create project when not connected to a sym");
		err.open();
		return;
	}

	String str = NewProjShell.askForName(display, shell);

	if (str != null) {
		Project proj = null;

		// TODO: Add error message for already existing projects
		if (cur.getData() instanceof Integer) {
			if (ProjectManager.containsProject(sym, str))
				return;

			proj = ProjectManager.createProject(str, sym);
		} else if (cur.getData() instanceof String) {
			if (ProjectManager.containsProject(dir, str))
				return;

			proj = ProjectManager.createProject(str, dir);
		}

		if (proj != null) {
			TreeItem item = new TreeItem(cur, SWT.NONE);
			item.setText(proj.getName());
			item.setData(proj);
			item.setImage(RepDevMain.smallProjectImage);
			new TreeItem(item, SWT.NONE).setText("Loading...");
		}
	}
}
 

private void newFileInProject() {
	FileDialog dialog;

	if (isCurrentItemLocal())
		dialog = new FileDialog(shell, FileDialog.Mode.SAVE, getCurrentTreeDir());
	else
		dialog = new FileDialog(shell, FileDialog.Mode.SAVE, getCurrentTreeSym());

	ArrayList<SymitarFile> files = dialog.open();

	if (files.size() > 0) {
		SymitarFile file = files.get(0);

		TreeItem[] selection = tree.getSelection();
		if (selection.length != 1)
			return;

		TreeItem cur = selection[0];
		while (cur != null && !(cur.getData() instanceof Project))
			cur = cur.getParentItem();

		if (cur == null)
			return;

		Project proj = (Project) cur.getData();

		SessionError error = file.saveFile("");

		if (error == SessionError.NONE) {
			if (!proj.hasFile(file)) {
				proj.addFile(file);
				TreeItem item = new TreeItem(cur, SWT.NONE);
				item.setText(file.getName());
				item.setData(file);
				item.setImage(getFileImage(file));

				if (proj.isLocal())
					ProjectManager.saveProjects(proj.getDir());
				else
					ProjectManager.saveProjects(proj.getSym());
			}

			openFile(file);
			tree.notifyListeners(SWT.Selection, null);
		}

	}
}
 

private void selectedTreeCollapsed(TreeEvent event) {
	TreeItem item = (TreeItem) event.item;
	ColumnGroupEntry columnGroupEntry = (ColumnGroupEntry) item.getData();
	fireGroupCollapsed(columnGroupEntry);
}
 

/**
 * Gets the key name from tree item.
 *
 * @param item the item
 * @return the key name from tree item
 */
private String getKeyNameFromTreeItem(TreeItem item) {
  return (String) item.getData();
}
 

/**
 * Gets the feature description from table tree item.
 *
 * @param item the item
 * @return the feature description from table tree item
 */
public FeatureDescription getFeatureDescriptionFromTableTreeItem(TreeItem item) {
  return (FeatureDescription) item.getData();
}