plugins/org.eclipse.epp.installer.ui/src/org/eclipse/epp/installer/internal/ui/pages/WarningPage.java

package org.eclipse.epp.installer.internal.ui.pages;

import org.eclipse.epp.installer.ui.IWizardStep;
import org.eclipse.epp.installer.ui.InstallPage;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;


/**
 * A simple page containing a single text control used for displaying warnings to
 * the user.
 */
public class WarningPage extends InstallPage
{
	private StyledText label;

	public WarningPage(IWizardStep step, String pageName) {
		super(step, pageName);
	}

	public WarningPage(IWizardStep step, String pageName, String title, ImageDescriptor titleImage) {
		super(step, pageName, title, titleImage);
	}

	/**
	 * Create contents of the wizard
	 * 
	 * @param parent
	 */
	public void createControl(Composite parent) {
		Composite container = new Composite(parent, SWT.NULL);
		final FillLayout fillLayout = new FillLayout();
		fillLayout.marginHeight = 10;
		fillLayout.marginWidth = 15;
		container.setLayout(fillLayout);

		label = new StyledText(container, SWT.V_SCROLL | SWT.BORDER | SWT.WRAP );		
		label.setEditable(false);
		label.setWordWrap(true);
		label.setLayoutData(new GridData( GridData.FILL, GridData.FILL, true, true));

		setControl(container);
	}
	
	/**
	 * Set the text to be displayed. 
	 * 
	 * Must be called after the wizard page content has been created.
	 * 
	 * @param String message
	 */
	public void setText(String message) {
		if(message == null)
			message = "WarningPage: setText(null), please check installer code";
		label.setText(message);
	}
	
	public void setVisible(boolean visible) {
		super.setVisible(visible);
		if (visible)
			setDefaultFocus();
	}

	/**
	 * Focus on default element
	 */
	public void setDefaultFocus() {
		label.setFocus();
	}
}