如何在SWT表的列中添加超链接？

Question

How to add Hyperlink in SWT Table column ? I`m using org.eclipse.swt.widgets.Table class.

Is there any way to do this without using TableViewer, JFace ?

I tried this way but not working correctly (not showing hyperlinks).

for(int i=2; i<4; i++){ 
Hyperlink link = new Hyperlink(table, SWT.WRAP); 
link.setText(temp[i]); 
link.setUnderlined(true);
TableEditor editor = new TableEditor(table); 
editor.setEditor(link, tableItem[index-1], i); //set hyperlinks in column i
}

Answer 1

Below is one way to draw the hyperlink using TableView with a LabelProvider, as mentioned in Tonny Madsen's answer.

The code below just paints the hyperlink.

    TableViewerColumn column = ...
    column.setLabelProvider( new MyHyperlinkLabelProvider( tableViewerFiles.getTable() ));

private final class MyHyperlinkLabelProvider extends StyledCellLabelProvider {
    MyHyperlink m_control;

    private MyHyperlinkLabelProvider( Composite parent ) {
        m_control = new MyHyperlink( parent, SWT.WRAP );
    }

    @Override 
    protected void paint( Event event, Object element ) {
        String sValue = ... [Get cell value from row element]
        m_control.setText( sValue );

        GC gc = event.gc;
        Rectangle cellRect = new Rectangle( event.x, event.y, event.width, event.height );
        cellRect.width = 4000;

        m_control.paintText( gc, cellRect);
    }
}

private class MyHyperlink extends Hyperlink {
    public MyHyperlink(Composite parent, int style) {
        super(parent, style);
        this.setUnderlined(true);
    }

    @Override
    public void paintText(GC gc, Rectangle bounds) {
        super.paintText(gc, bounds);
    }
}

Answer 2

Yes, that is certainly possible. To do this you have to implement SWT.ItemPaint (and possibly also SWT.ItemErase and SWT.ItemMeassure ).

It is easier with TableView though if you use the correct LabelProvider ...

Answer 3

You need to set the size of the editor:

editor.grabHorizontal = true;
//or
editor.minimumWidth = 50;