annotation.java

iText是一个能够快速产生PDF文件的java类库。iText的java类对于那些要产生包含文本

	 * @param llx
	 * @param lly
	 * @param urx
	 * @param ury
	 * @param moviePath
	 *            path to the media clip file
	 * @param mimeType
	 *            mime type of the media
	 * @param showOnDisplay
	 *            if true play on display of the page
	 */
	public Annotation(float llx, float lly, float urx, float ury,
			String moviePath, String mimeType, boolean showOnDisplay) {
		this(llx, lly, urx, ury);
		annotationtype = SCREEN;
		annotationAttributes.put(FILE, moviePath);
		annotationAttributes.put(MIMETYPE, mimeType);
		annotationAttributes.put(PARAMETERS, new boolean[] {
				false /* embedded */, showOnDisplay });
	}

	/**
	 * Constructs an <CODE>Annotation</CODE>.
	 * 
	 * @param llx
	 *            the lower left x-value
	 * @param lly
	 *            the lower left y-value
	 * @param urx
	 *            the upper right x-value
	 * @param ury
	 *            the upper right y-value
	 * @param file
	 *            an external PDF file
	 * @param page
	 *            a page number in this file
	 */
	public Annotation(float llx, float lly, float urx, float ury, String file,
			int page) {
		this(llx, lly, urx, ury);
		annotationtype = FILE_PAGE;
		annotationAttributes.put(FILE, file);
		annotationAttributes.put(PAGE, new Integer(page));
	}

	/**
	 * Constructs an <CODE>Annotation</CODE>.
	 * 
	 * @param llx
	 *            the lower left x-value
	 * @param lly
	 *            the lower left y-value
	 * @param urx
	 *            the upper right x-value
	 * @param ury
	 *            the upper right y-value
	 * @param named
	 *            a named destination in this file
	 */
	public Annotation(float llx, float lly, float urx, float ury, int named) {
		this(llx, lly, urx, ury);
		annotationtype = NAMED_DEST;
		annotationAttributes.put(NAMED, new Integer(named));
	}

	/**
	 * Constructs an <CODE>Annotation</CODE>.
	 * 
	 * @param llx
	 *            the lower left x-value
	 * @param lly
	 *            the lower left y-value
	 * @param urx
	 *            the upper right x-value
	 * @param ury
	 *            the upper right y-value
	 * @param application
	 *            an external application
	 * @param parameters
	 *            parameters to pass to this application
	 * @param operation
	 *            the operation to pass to this application
	 * @param defaultdir
	 *            the default directory to run this application in
	 */
	public Annotation(float llx, float lly, float urx, float ury,
			String application, String parameters, String operation,
			String defaultdir) {
		this(llx, lly, urx, ury);
		annotationtype = LAUNCH;
		annotationAttributes.put(APPLICATION, application);
		annotationAttributes.put(PARAMETERS, parameters);
		annotationAttributes.put(OPERATION, operation);
		annotationAttributes.put(DEFAULTDIR, defaultdir);
	}

	// implementation of the Element-methods

	/**
	 * Gets the type of the text element.
	 * 
	 * @return a type
	 */
	public int type() {
		return Element.ANNOTATION;
	}

	/**
	 * Processes the element by adding it (or the different parts) to an <CODE>
	 * ElementListener</CODE>.
	 * 
	 * @param listener
	 *            an <CODE>ElementListener</CODE>
	 * @return <CODE>true</CODE> if the element was processed successfully
	 */
	public boolean process(ElementListener listener) {
		try {
			return listener.add(this);
		} catch (DocumentException de) {
			return false;
		}
	}

	/**
	 * Gets all the chunks in this element.
	 * 
	 * @return an <CODE>ArrayList</CODE>
	 */

	public ArrayList getChunks() {
		return new ArrayList();
	}

	// methods

	/**
	 * Sets the dimensions of this annotation.
	 * 
	 * @param llx
	 *            the lower left x-value
	 * @param lly
	 *            the lower left y-value
	 * @param urx
	 *            the upper right x-value
	 * @param ury
	 *            the upper right y-value
	 */
	public void setDimensions(float llx, float lly, float urx, float ury) {
		this.llx = llx;
		this.lly = lly;
		this.urx = urx;
		this.ury = ury;
	}

	// methods to retrieve information

	/**
	 * Returns the lower left x-value.
	 * 
	 * @return a value
	 */
	public float llx() {
		return llx;
	}

	/**
	 * Returns the lower left y-value.
	 * 
	 * @return a value
	 */
	public float lly() {
		return lly;
	}

	/**
	 * Returns the uppper right x-value.
	 * 
	 * @return a value
	 */
	public float urx() {
		return urx;
	}

	/**
	 * Returns the uppper right y-value.
	 * 
	 * @return a value
	 */
	public float ury() {
		return ury;
	}

	/**
	 * Returns the lower left x-value.
	 * 
	 * @param def
	 *            the default value
	 * @return a value
	 */
	public float llx(float def) {
		if (Float.isNaN(llx))
			return def;
		return llx;
	}

	/**
	 * Returns the lower left y-value.
	 * 
	 * @param def
	 *            the default value
	 * @return a value
	 */
	public float lly(float def) {
		if (Float.isNaN(lly))
			return def;
		return lly;
	}

	/**
	 * Returns the upper right x-value.
	 * 
	 * @param def
	 *            the default value
	 * @return a value
	 */
	public float urx(float def) {
		if (Float.isNaN(urx))
			return def;
		return urx;
	}

	/**
	 * Returns the upper right y-value.
	 * 
	 * @param def
	 *            the default value
	 * @return a value
	 */
	public float ury(float def) {
		if (Float.isNaN(ury))
			return def;
		return ury;
	}

	/**
	 * Returns the type of this <CODE>Annotation</CODE>.
	 * 
	 * @return a type
	 */
	public int annotationType() {
		return annotationtype;
	}

	/**
	 * Returns the title of this <CODE>Annotation</CODE>.
	 * 
	 * @return a name
	 */
	public String title() {
		String s = (String) annotationAttributes.get(TITLE);
		if (s == null)
			s = "";
		return s;
	}

	/**
	 * Gets the content of this <CODE>Annotation</CODE>.
	 * 
	 * @return a reference
	 */
	public String content() {
		String s = (String) annotationAttributes.get(CONTENT);
		if (s == null)
			s = "";
		return s;
	}

	/**
	 * Gets the content of this <CODE>Annotation</CODE>.
	 * 
	 * @return a reference
	 */
	public HashMap attributes() {
		return annotationAttributes;
	}

	/**
	 * Returns an <CODE>Annotation</CODE> that has been constructed taking in
	 * account the value of some <VAR>attributes </VAR>.
	 * 
	 * @param attributes
	 *            Some attributes
	 * @deprecated Use ElementFactory.getAnnotation(attributes)
	 */
	public Annotation(java.util.Properties attributes) {
		this(com.lowagie.text.factories.ElementFactory.getAnnotation(attributes));
	}
}