[news.eclipse.platform.swt] Re: Large tables with TitleAreaDialog & Tabl

[Tom Schindl <tom.schindl@xxxxxxxxxxxxxxx>]

Here's a modified snippet.

Tom

--
B e s t S o l u t i o n . at
--------------------------------------------------------------------
Tom Schindl                                          JFace-Committer
--------------------------------------------------------------------

import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class SnippetLargeTableInDialog extends TitleAreaDialog {
	private int MAX_DIALOG_WIDTH = 400;
	private int MAX_DIALOG_HEIGHT = 300;
	private class MyContentProvider implements IStructuredContentProvider {

		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
		 */
		public Object[] getElements(Object inputElement) {
			return (MyModel[]) inputElement;
		}

		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.jface.viewers.IContentProvider#dispose()
		 */
		public void dispose() {
		}

		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer,
		 *      java.lang.Object, java.lang.Object)
		 */
		public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
		}
	}

	public class MyModel {
		public int counter;

		public MyModel(int counter) {
			this.counter = counter;
		}

		public String toString() {
			return "Item " + this.counter;
		}
	}

	public SnippetLargeTableInDialog(Shell shell) {
		super(shell);
		setShellStyle(SWT.SHELL_TRIM | SWT.RESIZE | SWT.APPLICATION_MODAL
				| getDefaultOrientation());
	}

	protected Control createDialogArea(Composite parent) {
		Composite contents = (Composite) super.createDialogArea(parent);
		
		int style = SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION;

		final TableViewer v = new TableViewer(contents, style);
		v.getControl().setLayoutData(new GridData(GridData.FILL_BOTH)); 
		v.setLabelProvider(new LabelProvider());
		v.setContentProvider(new MyContentProvider());
		MyModel[] model = createModel();
		v.setInput(model);
		v.getTable().setLinesVisible(true);
		v.reveal(model[99]);
		
		return contents;
	}
	
	protected Point getInitialSize() {
		Point shellSize = super.getInitialSize();
		return new Point(Math.min(
				convertHorizontalDLUsToPixels(MAX_DIALOG_WIDTH), shellSize.x),
				Math.min(convertVerticalDLUsToPixels(MAX_DIALOG_HEIGHT),
						shellSize.y));
	}

	private MyModel[] createModel() {
		MyModel[] elements = new MyModel[100];
		for (int i = 0; i < 100; i++) {
			elements[i] = new MyModel(i);
		}
		return elements;
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		Display display = new Display();
		final Shell shell = new Shell(display);
		shell.setLayout(new FillLayout());
		Button b = new Button(shell, SWT.BORDER | SWT.BOLD);
		b.setText("Press me");
		b.addSelectionListener(new SelectionListener() {
			public void widgetSelected(SelectionEvent arg0) {
				System.out.println("widgetSelected");
				TitleAreaDialog dialog = new SnippetLargeTableInDialog(shell);
				dialog.open();
				// TODO Auto-generated method stub
			}

			public void widgetDefaultSelected(SelectionEvent arg0) {
				// TODO Auto-generated method stub
			}
		});
		shell.open();
		while (!shell.isDisposed()) {
			if (!display.readAndDispatch())
				display.sleep();
		}
		display.dispose();
	}
}