itextpdf-master/xtra/src/main/java/com/itextpdf/text/pdf/richmedia/CuePoint.java
/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2022 iText Group NV
 * Authors: Bruno Lowagie, Paulo Soares, et al.
 *
 * This program is free software; you can redistribute it and/or modify
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package com.itextpdf.text.pdf.richmedia;

import com.itextpdf.text.exceptions.IllegalPdfSyntaxException;
import com.itextpdf.text.pdf.PdfDictionary;
import com.itextpdf.text.pdf.PdfIndirectReference;
import com.itextpdf.text.pdf.PdfName;
import com.itextpdf.text.pdf.PdfNumber;
import com.itextpdf.text.pdf.PdfObject;
import com.itextpdf.text.pdf.PdfString;

/**
 * A video file can contain cue points that are encoded in a video stream
 * or may be created by an associated ActionScript within the Flash content.
 * The CuePoint dictionary contains a state that relates the cue points to
 * an action that may be passed to the conforming application or may be used
 * to change the appearance. Cue points in the Flash content are matched to
 * the cue points declared in the PDF file by the values specified by the
 * Name or Time keys. (See ExtensionLevel 3 p91)
 * @since	5.0.0
 */
public class CuePoint extends PdfDictionary {

	/**
	 * Constructs a CuePoint object.
	 * A <code>Navigation</code> cue point is an event encoded in a Flash movie (FLV).
	 * A chapter stop may be encoded so that when the user requests to go to or skip
	 * a chapter, a navigation cue point is used to indicate the location of the chapter.
	 * An <code>Event</code> is a generic cue point of no specific significance other
	 * than a corresponding action is triggered.
	 * @param	subtype	possible values: PdfName.NAVIGATION or PdfName.EVENT
	 */
	public CuePoint(PdfName subtype) {
		super(PdfName.CUEPOINT);
		put(PdfName.SUBTYPE, subtype);
	}
	
	/**
	 * Set the name of the cue point to match against the cue point within
	 * Flash content and for display purposes.
	 * @param	name	the name of the cue point
	 */
	public void setName(PdfString name) {
		put(PdfName.NAME, name);
	}
	
	/**
	 * Sets the time value of the cue point in milliseconds to match against
	 * the cue point within Flash content and for display purposes.
	 * @param	time	the time value of the cue point
	 */
	public void setTime(int time) {
		put(PdfName.TIME, new PdfNumber(time));
	}

	/**
	 * Sets an action dictionary defining the action that is executed
	 * if this cue point is triggered, meaning that the Flash content
	 * reached the matching cue point during its playback.
	 * @param	action	an action
	 */
	public void setAction(PdfObject action) {
		if (action instanceof PdfDictionary || action instanceof PdfIndirectReference)
			put(PdfName.A, action);
		else
			throw new IllegalPdfSyntaxException(
				"An action should be defined as a dictionary");
	}
}
