org.eclipse.swt.widgets.Text#addTraverseListener ( )源码实例Demo

@Override
protected Text createTextControl(Composite parent) {
	Text text= new Text(parent, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
	text.addTraverseListener(new TraverseListener() {
		public void keyTraversed(TraverseEvent event) {
			switch (event.detail) {
				case SWT.TRAVERSE_ESCAPE:
				case SWT.TRAVERSE_PAGE_NEXT:
				case SWT.TRAVERSE_PAGE_PREVIOUS:
					event.doit= true;
					break;
				case SWT.TRAVERSE_RETURN:
				case SWT.TRAVERSE_TAB_NEXT:
				case SWT.TRAVERSE_TAB_PREVIOUS:
					if ((event.stateMask & SWT.MODIFIER_MASK) != 0) {
						event.doit= true;
					}
					break;
			}

		}
	});
	return text;
}
 

protected void createNameAndDescription(final Composite parent) {
    final Label nameLabel = new Label(parent, SWT.NONE);
    nameLabel.setText(Messages.name + " *");
    nameLabel.setLayoutData(GridDataFactory.fillDefaults().align(SWT.END, SWT.CENTER).create());

    nameText = new Text(parent, SWT.BORDER);
    nameText.setLayoutData(GridDataFactory.fillDefaults().grab(true, false).span(2, 1).create());

    final Label descriptionLabel = new Label(parent, SWT.NONE);
    descriptionLabel.setText(Messages.dataDescriptionLabel);
    descriptionLabel.setLayoutData(GridDataFactory.fillDefaults().align(SWT.END, SWT.TOP).create());

    descriptionText = new Text(parent, SWT.BORDER | SWT.MULTI | SWT.WRAP | SWT.V_SCROLL);
    descriptionText
            .setLayoutData(
                    GridDataFactory.fillDefaults().grab(true, false).hint(SWT.DEFAULT, 70).span(2, 1).create());
    descriptionText.addTraverseListener(e -> {
        if (e.detail == SWT.TRAVERSE_TAB_NEXT || e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
            e.doit = true;
        }
    });
}
 

@Override
protected Control createControl(Composite parent) {
	parent.getParent().setRedraw(true); // fix tool-bar size on Windows
	parent.setLayout(new FillLayout());
	log.trace("create search text control");
	Composite composite = new Composite(parent, SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	layout.horizontalSpacing = 5;
	layout.marginHeight = 0;
	layout.marginWidth = 5;
	layout.verticalSpacing = 0;
	composite.setLayout(layout);
	text = new Text(composite, SWT.BORDER | SWT.SEARCH);
	text.addTraverseListener(e -> {
		if (e.detail == SWT.TRAVERSE_RETURN) {
			doSearch(action.typeFilter);
		}
	});
	UI.gridData(text, true, false).minimumWidth = 180;
	createActionMenu(composite);
	return composite;
}
 

public static void addTraverseListener(final Text textArea) {
    textArea.addTraverseListener(new TraverseListener() {
        @Override
        public void keyTraversed(final TraverseEvent e) {
            if (e.detail == SWT.TRAVERSE_TAB_NEXT || e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
                e.doit = true;
            }
        }
    });
}
 

/**
 * Creates a multi-line textbox.
 * 
 * @param parent a composite control which will be the parent of the new
 *          instance (cannot be null)
 * @param style the style of control to construct
 * @param allowTabs set to <code>true</code> to allow \t characters to be
 *          inserted.
 * @return the new textbox
 */
public static Text createMultilineTextbox(Composite parent, int style, final boolean allowTabs) {
  Text text = new Text(parent, style | SWT.MULTI);
  text.addTraverseListener(new TraverseListener() {
    public void keyTraversed(TraverseEvent e) {
      switch (e.detail) {
        case SWT.TRAVERSE_TAB_NEXT:
          e.doit = !allowTabs;
      }
    }
  });
  return text;
}
 

public static void addTraverseListener(final Text textArea) {
    textArea.addTraverseListener(new TraverseListener() {
        @Override
        public void keyTraversed(TraverseEvent e) {
            if (e.detail == SWT.TRAVERSE_TAB_NEXT || e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
                e.doit = true;
            }
        }
    });
}
 

private void createSearchSection(Composite container) {
	Composite composite = new Composite(container, SWT.NONE);
	composite.setLayout(new GridLayout(3, false));
	UI.gridData(composite, true, false);
	new ConnectionText(composite);
	new Label(composite, SWT.NONE).setText(M.Process);
	text = new Text(composite, SWT.BORDER);
	UI.gridData(text, true, false);
	SearchAction action = new SearchAction();
	text.addTraverseListener(action);
	createButton(composite, M.Search, action);
}
 

private Text createTextCell(Composite composite, int heightFactor, int widthFactor) {
	Text text = toolkit.createText(composite, null, SWT.BORDER | SWT.MULTI | SWT.WRAP);
	text.addTraverseListener(new TraverseListener() {
		public void keyTraversed(TraverseEvent e) {
			if (e.detail == SWT.TRAVERSE_TAB_NEXT || e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
				e.doit = true;
			}
		}
	});
	setGridData(text, heightFactor, widthFactor);
	return text;
}
 

public static void addTraverseListener(final Text textArea) {
	textArea.addTraverseListener(new TraverseListener() {
		public void keyTraversed(TraverseEvent e) {
			if (e.detail == SWT.TRAVERSE_TAB_NEXT
					|| e.detail == SWT.TRAVERSE_TAB_PREVIOUS) {
				e.doit = true;
			}
		}
	});
}
 

public static void main(String[] args) {
	Display display = new Display();
	Shell shell = new Shell(display);
	GridLayout layout = new GridLayout(2, false);
	shell.setLayout(layout);

	final List<String> items = createList();

	// 1) Create pageable table with 10 items per page
	// This SWT Component create internally a SWT Table+JFace TreeViewer
	int pageSize = 10;
	paginationTable = new PageableTable(shell, SWT.BORDER, SWT.BORDER | SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL, pageSize);
	paginationTable.setLayoutData(new GridData(GridData.FILL, GridData.FILL, true, true, 2, 1));

	// 2) Initialize the table viewer + SWT Table
	TableViewer viewer = paginationTable.getViewer();
	viewer.setContentProvider(ArrayContentProvider.getInstance());
	viewer.setLabelProvider(new LabelProvider());

	Table table = viewer.getTable();
	table.setHeaderVisible(true);
	table.setLinesVisible(true);

	// 3) Create column by adding SortTableColumnSelectionListener listener
	// to sort the paginated table.
	TableViewerColumn col = createTableViewerColumn(viewer, "Name", 150);
	col.setLabelProvider(new ColumnLabelProvider() {
		@Override
		public String getText(Object element) {
			String p = (String) element;
			return p;
		}
	});

	// Call SortTableColumnSelectionListener with null property name because
	// it's a list of String.
	col.getColumn().addSelectionListener(new SortTableColumnSelectionListener(null));

	// 4) Set the page loader used to load a page (sublist of String)
	// according the page index selected, the page size etc.
	paginationTable.setPageLoader(new PageResultLoaderList<>(items));

	// 5) Set current page to 0 to display the first page
	paginationTable.setCurrentPage(0);

	Label lbl = new Label(shell, SWT.NONE);
	lbl.setText("Max rows per page: ");
	lbl.setLayoutData(new GridData(GridData.END, GridData.CENTER, false, false));

	txt = new Text(shell, SWT.BORDER);
	txt.setText("10");
	GridData gd = new GridData(GridData.BEGINNING, GridData.CENTER, false, false);
	gd.widthHint = 30;
	txt.setLayoutData(gd);
	txt.addTraverseListener(e -> updatePageSize());
	txt.addListener(SWT.FocusOut, e -> updatePageSize());

	// paginationTable.getController().setPageSize(10);

	shell.setSize(550, 320);
	shell.open();
	while (!shell.isDisposed()) {
		if (!display.readAndDispatch())
			display.sleep();
	}
	display.dispose();
}