package com.qoppa.sample;

import java.awt.Color;
import java.awt.geom.Rectangle2D;
import java.util.Vector;

import com.qoppa.pdf.PDFException;
import com.qoppa.pdf.actions.Action;
import com.qoppa.pdf.actions.LaunchAction;
import com.qoppa.pdf.annotations.Link;
import com.qoppa.pdfProcess.PDFDocument;
import com.qoppa.pdfProcess.PDFPage;

/**
 * This sample shows how to create link with a LaunchAction and 
 * set the flag to open in a new window, the existing window, or defer to the user preference.
 *
 */
public class AddLinksLaunchAction
{
	public static final String INPUT = "input.pdf";
	public static final String OPEN_FILE = "open.pdf";
	public static final String OUTPUT = "out.pdf";
	
	public static void main(String [] args) throws Exception
	{
		PDFDocument doc = new PDFDocument(INPUT, null);
		
		// open in a new window
		addLink(doc.getPage(0), new Rectangle2D.Double(50,  50,  100, 30), OPEN_FILE, Action.OPEN_NEW_WINDOW);
		// open in this window
		addLink(doc.getPage(0), new Rectangle2D.Double(50,  150,  100, 30), OPEN_FILE, Action.OPEN_EXISTING_WINDOW);
		// open according to user preferences
		addLink(doc.getPage(0), new Rectangle2D.Double(50,  250,  100, 30), OPEN_FILE, Action.OPEN_USER_PREFERENCE);
		
		doc.saveDocument(OUTPUT);
	}
	
	/**
	 * Add a link to the page
	 * @param page Page to add the link to
	 * @param bounds Location on the page to place the link
	 * @param path File path to set in the action
	 * @param newWindow Flag for opening the document in the current window, a new window, or according to user preference
	 * @throws PDFException
	 */
	private static void addLink(PDFPage page, Rectangle2D bounds, String path, int newWindow) throws PDFException
	{
		// create a new link
		Link link = page.getDocument().getAnnotationFactory().createLink();
		
		// show blue border around the link
		link.setRectangle(bounds);
		link.setBorderWidth(1f);
		link.setColor(Color.blue);

		// Add launch action to the link
		LaunchAction action = new LaunchAction(path, newWindow);
		Vector<LaunchAction> actionList = new Vector<LaunchAction>();
		actionList.add(action);
		link.setActions(actionList);

		// Add the link to the page
		page.addAnnotation(link);
	}
}