| /******************************************************************************* |
| * Copyright (c) 2007, 2008 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Michael Krkoska - initial API and implementation (bug 188333) |
| *******************************************************************************/ |
| package org.eclipse.jface.snippets.viewers; |
| |
| import java.io.File; |
| import java.text.MessageFormat; |
| |
| import org.eclipse.jface.preference.JFacePreferences; |
| import org.eclipse.jface.resource.JFaceResources; |
| import org.eclipse.jface.viewers.IStructuredContentProvider; |
| import org.eclipse.jface.viewers.StyledCellLabelProvider; |
| import org.eclipse.jface.viewers.StyledString; |
| import org.eclipse.jface.viewers.TableViewer; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.ViewerCell; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.graphics.RGB; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.Shell; |
| |
| /** |
| * Using a {@link StyledCellLabelProvider} on table viewer. |
| */ |
| |
| public class Snippet049StyledCellLabelProvider { |
| |
| |
| private static final int SHELL_WIDTH= 400; |
| private static final Display DISPLAY= Display.getDefault(); |
| |
| |
| public static void main(String[] args) { |
| |
| JFaceResources.getColorRegistry().put(JFacePreferences.COUNTER_COLOR, new RGB(0,127,174)); |
| |
| Shell shell= new Shell(DISPLAY, SWT.CLOSE | SWT.RESIZE); |
| shell.setSize(SHELL_WIDTH, 400); |
| shell.setLayout(new GridLayout(1, false)); |
| |
| Snippet049StyledCellLabelProvider example= new Snippet049StyledCellLabelProvider(); |
| Control composite= example.createPartControl(shell); |
| composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1)); |
| |
| shell.open(); |
| |
| while (!shell.isDisposed()) { |
| if (!DISPLAY.readAndDispatch()) { |
| DISPLAY.sleep(); |
| } |
| } |
| DISPLAY.dispose(); |
| } |
| |
| public Snippet049StyledCellLabelProvider() { |
| } |
| |
| public Composite createPartControl(Composite parent) { |
| Composite composite= new Composite(parent, SWT.NONE); |
| |
| composite.setLayout(new GridLayout(1, true)); |
| |
| Label label= new Label(composite, SWT.NONE); |
| label.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false)); |
| label.setText("Viewer with a StyledCellLabelProvider:"); //$NON-NLS-1$ |
| |
| ExampleLabelProvider labelProvider= new ExampleLabelProvider(); |
| FileSystemContentProvider contentProvider= new FileSystemContentProvider(); |
| |
| final TableViewer tableViewer= new TableViewer(composite, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL); |
| |
| tableViewer.setContentProvider(contentProvider); |
| tableViewer.setLabelProvider(labelProvider); |
| |
| GridData data= new GridData(GridData.FILL, GridData.FILL, true, true); |
| tableViewer.getControl().setLayoutData(data); |
| tableViewer.setInput(new Object()); |
| |
| return composite; |
| } |
| |
| private static class ExampleLabelProvider extends StyledCellLabelProvider { |
| |
| private static int IMAGE_SIZE= 16; |
| private static final Image IMAGE1= new Image(DISPLAY, DISPLAY.getSystemImage(SWT.ICON_WARNING).getImageData().scaledTo(IMAGE_SIZE, IMAGE_SIZE)); |
| private static final Image IMAGE2= new Image(DISPLAY, DISPLAY.getSystemImage(SWT.ICON_ERROR).getImageData().scaledTo(IMAGE_SIZE, IMAGE_SIZE)); |
| |
| |
| public ExampleLabelProvider() { |
| } |
| |
| public void update(ViewerCell cell) { |
| Object element= cell.getElement(); |
| |
| if (element instanceof File) { |
| File file= (File) element; |
| |
| StyledString styledString= new StyledString(file.getName()); |
| String decoration = MessageFormat.format(" ({0} bytes)", new Object[] { new Long(file.length()) }); //$NON-NLS-1$ |
| styledString.append(decoration, StyledString.COUNTER_STYLER); |
| |
| cell.setText(styledString.toString()); |
| cell.setStyleRanges(styledString.getStyleRanges()); |
| |
| if (file.isDirectory()) { |
| cell.setImage(IMAGE1); |
| } else { |
| cell.setImage(IMAGE2); |
| } |
| } else { |
| cell.setText("Unknown element"); //$NON-NLS-1$ |
| } |
| |
| super.update(cell); |
| } |
| } |
| |
| private static class FileSystemContentProvider implements IStructuredContentProvider { |
| |
| public Object[] getElements(Object element) { |
| File[] roots = File.listRoots(); |
| for (int i = 0; i < roots.length; i++) { |
| File[] list = roots[i].listFiles(); |
| if (list != null && list.length > 0) { |
| return list; |
| } |
| } |
| return roots; |
| } |
| |
| public void dispose() { |
| } |
| |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| } |
| } |
| } |