Shows how to make a cell in a JFace TableViewer look and act like a hyperlink

gistfile1.java

import org.eclipse.jface.viewers.*;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyleRange;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Shell;

interface LinkOpener {
  void openLink(Object rowObject);
}

class LinkLabelProvider extends StyledCellLabelProvider {

	private final CellLabelProvider shin;
	private int columnIndex = -1;
	private final LinkOpener click;
	private int charWidth;

	public LinkLabelProvider(CellLabelProvider aShin, LinkOpener onClick) {
		shin = aShin;
		click = onClick;
	}
	
	@Override
	public void initialize(ColumnViewer viewer, ViewerColumn column) {
		super.initialize(viewer, column);
		Listener mouseListener = new Listener(viewer);
		viewer.getControl().addMouseListener(mouseListener);	
	}
	
	@Override
	protected void paint(Event event, Object element) {
		super.paint(event, element);
		charWidth = event.gc.getFontMetrics().getAverageCharWidth() ;
	}

	@Override
	public void update(ViewerCell cell) {
		shin.update(cell);
		StyleRange s = new StyleRange();
		s.foreground = cell.getItem().getDisplay().getSystemColor(SWT.COLOR_BLUE);
		s.underline = true;
		s.start = 0;
		s.length = cell.getText().length();
		cell.setStyleRanges(new StyleRange[] {s});
		columnIndex = cell.getColumnIndex();
	}
	
	private final class Listener extends MouseAdapter {
		private final ColumnViewer column;
		public Listener(ColumnViewer viewer) {column  =  viewer;}
		@Override public void mouseDown(MouseEvent e) {
			Point point = new Point(e.x,e.y);
			ViewerCell cell = column.getCell(point);
			if (cell != null && cell.getColumnIndex() == columnIndex) {
				Rectangle rect = cell.getTextBounds();
				rect.width = cell.getText().length() * charWidth;
				if (rect.contains(point))
					click.openLink(cell.getElement());
			}
		}
	}
}

public class TableCellClick {

	public class DataItem {
		public int counter;
		public DataItem(int counter) {this.counter = counter;}
		public String toString() {return "Item " + this.counter;}
	}

	public TableCellClick(Shell shell) {
		final TableViewer v = new TableViewer(shell, SWT.BORDER	| SWT.FULL_SELECTION);
		v.setContentProvider(new ArrayContentProvider());
		TableViewerColumn column = new TableViewerColumn(v, SWT.NONE);
		column.getColumn().setWidth(200);
		column.getColumn().setMoveable(true);
		column.getColumn().setText("Column With Link");
		LinkOpener linkHandler = new LinkOpener() {
			@Override
			public void openLink(Object rowObject) {
				System.out.println("You clicked on " + rowObject);
			}
		};
		column.setLabelProvider(new LinkLabelProvider(new ColumnLabelProvider(), linkHandler));
		column = new TableViewerColumn(v, SWT.NONE);
		column.getColumn().setWidth(200);
		column.getColumn().setMoveable(true);
		column.getColumn().setText("Normal column");
		column.setLabelProvider(new ColumnLabelProvider());
		DataItem[] data = createdData();
		v.setInput(data);
		v.getTable().setHeaderVisible(true);
	}

	private DataItem[] createdData() {
		DataItem[] result = new DataItem[10];
		for (int i = 0; i < 10; i++) 
			result[i] = new DataItem(i);
		return result;
	}

	public static void main(String[] args) {
		Display display = new Display();
		Shell shell = new Shell(display);
		shell.setLayout(new FillLayout());
		new TableCellClick(shell);
		shell.open();
		while (!shell.isDisposed()) {
			if (!display.readAndDispatch())
				display.sleep();
		}
		display.dispose();
	}

}

Great, thank you!