How do I create this button in an eclipse plugin

Question

Inside my eclipse plugin I want to create this button in a composite:

Where do I get the icon? How do I create that button?

Answer 1

Here's the solution I found by digging a little deeper...

Create an IAction:

private class RemoveCurrentGraphAction extends Action {
    @Override
    public void run() {
        updateWith(new ModuleGraph());
    }

    public RemoveCurrentGraphAction() {
        setToolTipText("Reset to empty graph");
    }

    @Override
    public int getStyle() {
        return IAction.AS_PUSH_BUTTON;
    }

    @Override
    public ImageDescriptor getImageDescriptor() {
        return PlatformUI.getWorkbench().getSharedImages()
                .getImageDescriptor(org.eclipse.ui.ISharedImages.IMG_ELCL_REMOVE);
    }
}

Then when creating the view, add the action to the toolbar:

IActionBars bars = getViewSite().getActionBars();
bars.getToolBarManager().add(new RemoveCurrentGraphAction());