Mega Code Archive
HTML Explorer based on JFace
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import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.ITreeContentProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerFilter;
import org.eclipse.jface.viewers.ViewerSorter;
import org.eclipse.jface.window.ApplicationWindow;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.SashForm;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.TableColumn;
public class JFaceExplorer extends ApplicationWindow {
public JFaceExplorer() {
super(null);
addStatusLine();
}
protected Control createContents(Composite parent) {
getShell().setText("JFace File Explorer");
SashForm sash_form = new SashForm(parent, SWT.HORIZONTAL | SWT.NULL);
TreeViewer tv = new TreeViewer(sash_form);
tv.setContentProvider(new FileTreeContentProvider());
tv.setLabelProvider(new FileTreeLabelProvider());
tv.setInput(new File("C:\\"));
tv.addFilter(new AllowOnlyFoldersFilter());
final TableViewer tbv = new TableViewer(sash_form, SWT.BORDER
| SWT.FULL_SELECTION | SWT.MULTI);
tbv.setContentProvider(new FileTableContentProvider());
tbv.setLabelProvider(new FileTableLabelProvider());
tbv.setSorter(new FileSorter());
TableColumn column = new TableColumn(tbv.getTable(), SWT.LEFT);
column.setText("Name");
column.setWidth(200);
column = new TableColumn(tbv.getTable(), SWT.RIGHT);
column.setText("Size");
column.setWidth(100);
tbv.getTable().setHeaderVisible(true);
tv.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
IStructuredSelection selection = (IStructuredSelection) event
.getSelection();
Object selected_file = selection.getFirstElement();
tbv.setInput(selected_file);
}
});
tbv.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
IStructuredSelection selection = (IStructuredSelection) event
.getSelection();
setStatus("Number of items selected is " + selection.size());
}
});
return sash_form;
}
public static void main(String[] args) {
JFaceExplorer w = new JFaceExplorer();
w.setBlockOnOpen(true);
w.open();
Display.getCurrent().dispose();
}
}
class Util {
private static ImageRegistry image_registry;
public static URL newURL(String url_name) {
try {
return new URL(url_name);
} catch (MalformedURLException e) {
throw new RuntimeException("Malformed URL " + url_name, e);
}
}
public static ImageRegistry getImageRegistry() {
if (image_registry == null) {
image_registry = new ImageRegistry();
image_registry.put("folder", ImageDescriptor
.createFromURL(newURL("file:icons/folder.gif")));
image_registry.put("file", ImageDescriptor
.createFromURL(newURL("file:icons/file.gif")));
}
return image_registry;
}
}
class FileTreeLabelProvider extends LabelProvider {
public String getText(Object element) {
return ((File) element).getName();
}
public Image getImage(Object element) {
if (((File) element).isDirectory()) {
return Util.getImageRegistry().get("folder");
} else {
return Util.getImageRegistry().get("file");
}
}
}
class FileTreeContentProvider implements ITreeContentProvider {
public Object[] getChildren(Object element) {
Object[] kids = ((File) element).listFiles();
return kids == null ? new Object[0] : kids;
}
public Object[] getElements(Object element) {
return getChildren(element);
}
public boolean hasChildren(Object element) {
return getChildren(element).length > 0;
}
public Object getParent(Object element) {
return ((File) element).getParent();
}
public void dispose() {
}
public void inputChanged(Viewer viewer, Object old_input, Object new_input) {
}
}
class FileTableLabelProvider implements ITableLabelProvider {
public String getColumnText(Object element, int column_index) {
if (column_index == 0) {
return ((File) element).getName();
}
if (column_index == 1) {
return "" + ((File) element).length();
}
return "";
}
public void addListener(ILabelProviderListener ilabelproviderlistener) {
}
public void dispose() {
}
public boolean isLabelProperty(Object obj, String s) {
return false;
}
public void removeListener(ILabelProviderListener ilabelproviderlistener) {
}
public Image getColumnImage(Object element, int column_index) {
if (column_index != 0) {
return null;
}
if (((File) element).isDirectory()) {
return Util.getImageRegistry().get("folder");
} else {
return Util.getImageRegistry().get("file");
}
}
}
class FileTableContentProvider implements IStructuredContentProvider {
public Object[] getElements(Object element) {
Object[] kids = null;
kids = ((File) element).listFiles();
return kids == null ? new Object[0] : kids;
}
public void dispose() {
}
public void inputChanged(Viewer viewer, Object old_object, Object new_object) {
}
}
class FileSorter extends ViewerSorter {
public int category(Object element) {
return ((File) element).isDirectory() ? 0 : 1;
}
}
class AllowOnlyFoldersFilter extends ViewerFilter {
public boolean select(Viewer viewer, Object parent, Object element) {
return ((File) element).isDirectory();
}
}
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