document.java

处理PDF

		for (Iterator iterator = listeners.iterator(); iterator.hasNext();) {
            listener = (DocListener) iterator.next();
            listener.resetPageCount();
        }
    }
    
	/**
 * Sets the page number.
 *
	 * @param pageN
	 *            the new page number
 */
    
    public void setPageCount(int pageN) {
        this.pageN = pageN;
        DocListener listener;
		for (Iterator iterator = listeners.iterator(); iterator.hasNext();) {
            listener = (DocListener) iterator.next();
            listener.setPageCount(pageN);
        }
    }
    
	/**
 * Returns the current page number.
 *
 * @return the current page number
 */
    
    public int getPageNumber() {
        return this.pageN;
    }
    
	/**
 * Closes the document.
 * <P>
	 * Once all the content has been written in the body, you have to close the
	 * body. After that nothing can be written to the body anymore.
 */
    
    public void close() {
		if (!close) {
            open = false;
            close = true;
        }
        DocListener listener;
		for (Iterator iterator = listeners.iterator(); iterator.hasNext();) {
            listener = (DocListener) iterator.next();
            listener.close();
        }
    }
    
    // methods concerning the header or some meta information
    
	/**
 * Adds a user defined header to the document.
 *
	 * @param name
	 *            the name of the header
	 * @param content
	 *            the content of the header
 * @return	<CODE>true</CODE> if successful, <CODE>false</CODE> otherwise
 */
    
    public boolean addHeader(String name, String content) {
        try {
            return add(new Header(name, content));
		} catch (DocumentException de) {
            throw new ExceptionConverter(de);
        }
    }
    
	/**
 * Adds the title to a Document.
 *
	 * @param title
	 *            the title
 * @return	<CODE>true</CODE> if successful, <CODE>false</CODE> otherwise
 */
    
    public boolean addTitle(String title) {
        try {
            return add(new Meta(Element.TITLE, title));
		} catch (DocumentException de) {
            throw new ExceptionConverter(de);
        }
    }
    
	/**
 * Adds the subject to a Document.
 *
	 * @param subject
	 *            the subject
 * @return	<CODE>true</CODE> if successful, <CODE>false</CODE> otherwise
 */
    
    public boolean addSubject(String subject) {
        try {
            return add(new Meta(Element.SUBJECT, subject));
		} catch (DocumentException de) {
            throw new ExceptionConverter(de);
        }
    }
    
	/**
 * Adds the keywords to a Document.
 *
	 * @param keywords
	 *            adds the keywords to the document
 * @return <CODE>true</CODE> if successful, <CODE>false</CODE> otherwise
 */
    
    public boolean addKeywords(String keywords) {
        try {
            return add(new Meta(Element.KEYWORDS, keywords));
		} catch (DocumentException de) {
            throw new ExceptionConverter(de);
        }
    }
    
	/**
 * Adds the author to a Document.
 *
	 * @param author
	 *            the name of the author
 * @return	<CODE>true</CODE> if successful, <CODE>false</CODE> otherwise
 */
    
    public boolean addAuthor(String author) {
        try {
            return add(new Meta(Element.AUTHOR, author));
		} catch (DocumentException de) {
            throw new ExceptionConverter(de);
        }
    }
    
	/**
 * Adds the creator to a Document.
 *
	 * @param creator
	 *            the name of the creator
 * @return	<CODE>true</CODE> if successful, <CODE>false</CODE> otherwise
 */
    
    public boolean addCreator(String creator) {
        try {
            return add(new Meta(Element.CREATOR, creator));
		} catch (DocumentException de) {
            throw new ExceptionConverter(de);
        }
    }
    
	/**
 * Adds the producer to a Document.
 *
 * @return	<CODE>true</CODE> if successful, <CODE>false</CODE> otherwise
 */
    
    public boolean addProducer() {
        try {
            return add(new Meta(Element.PRODUCER, "iText by lowagie.com"));
		} catch (DocumentException de) {
            throw new ExceptionConverter(de);
        }
    }
    
	/**
 * Adds the current date and time to a Document.
 *
 * @return	<CODE>true</CODE> if successful, <CODE>false</CODE> otherwise
 */
    
    public boolean addCreationDate() {
        try {
			/* bugfix by 'taqua' (Thomas) */
			final SimpleDateFormat sdf = new SimpleDateFormat(
					"EEE MMM dd HH:mm:ss zzz yyyy");
			return add(new Meta(Element.CREATIONDATE, sdf.format(new Date())));
		} catch (DocumentException de) {
            throw new ExceptionConverter(de);
        }
    }
    
    // methods to get the layout of the document.
    
	/**
 * Returns the left margin.
 *
 * @return	the left margin
 */
    
    public float leftMargin() {
        return marginLeft;
    }
    
	/**
 * Return the right margin.
 *
 * @return	the right margin
 */
    
    public float rightMargin() {
        return marginRight;
    }
    
	/**
 * Returns the top margin.
 *
 * @return	the top margin
 */
    
    public float topMargin() {
        return marginTop;
    }
    
	/**
 * Returns the bottom margin.
 *
 * @return	the bottom margin
 */
    
    public float bottomMargin() {
        return marginBottom;
    }
    
	/**
 * Returns the lower left x-coordinate.
 *
 * @return	the lower left x-coordinate
 */
    
    public float left() {
        return pageSize.getLeft(marginLeft);
    }
    
	/**
 * Returns the upper right x-coordinate.
 *
 * @return	the upper right x-coordinate
 */
    
    public float right() {
        return pageSize.getRight(marginRight);
    }
    
	/**
 * Returns the upper right y-coordinate.
 *
 * @return	the upper right y-coordinate
 */
    
    public float top() {
        return pageSize.getTop(marginTop);
    }
    
	/**
 * Returns the lower left y-coordinate.
 *
 * @return	the lower left y-coordinate
 */
    
    public float bottom() {
        return pageSize.getBottom(marginBottom);
    }
    
	/**
 * Returns the lower left x-coordinate considering a given margin.
 *
	 * @param margin
	 *            a margin
 * @return	the lower left x-coordinate
 */
    
    public float left(float margin) {
        return pageSize.getLeft(marginLeft + margin);
    }
    
	/**
 * Returns the upper right x-coordinate, considering a given margin.
 *
	 * @param margin
	 *            a margin
 * @return	the upper right x-coordinate
 */
    
    public float right(float margin) {
        return pageSize.getRight(marginRight + margin);
    }
    
	/**
 * Returns the upper right y-coordinate, considering a given margin.
 *
	 * @param margin
	 *            a margin
 * @return	the upper right y-coordinate
 */
    
    public float top(float margin) {
        return pageSize.getTop(marginTop + margin);
    }
    
	/**
 * Returns the lower left y-coordinate, considering a given margin.
 *
	 * @param margin
	 *            a margin
 * @return	the lower left y-coordinate
 */
    
    public float bottom(float margin) {
        return pageSize.getBottom(marginBottom + margin);
    }
    
	/**
 * Gets the pagesize.
	 * 
 * @return the page size
 */
    
	public Rectangle getPageSize() {
        return this.pageSize;
    }
    
	/**
	 * Checks if the document is open.
	 * 
     * @return <CODE>true</CODE> if the document is open
     */    
    public boolean isOpen() {
        return open;
    }
    
	/**
	 * Gets the iText version.
	 * This method may only be changed by Paulo Soares and/or Bruno Lowagie.
     * @return iText version
     */    
    public static final String getVersion() {
        return ITEXT_VERSION;
    }

	/**
 * Adds a JavaScript onLoad function to the HTML body tag
 *
	 * @param code
	 *            the JavaScript code to be executed on load of the HTML page
 */
    
    public void setJavaScript_onLoad(String code) {
        this.javaScript_onLoad = code;
    }

	/**
 * Gets the JavaScript onLoad command.
	 * 
 * @return the JavaScript onLoad command
 */

    public String getJavaScript_onLoad() {
        return this.javaScript_onLoad;
    }

	/**
 * Adds a JavaScript onUnLoad function to the HTML body tag
 *
	 * @param code
	 *            the JavaScript code to be executed on unload of the HTML page
 */
    
    public void setJavaScript_onUnLoad(String code) {
        this.javaScript_onUnLoad = code;
    }

	/**
 * Gets the JavaScript onUnLoad command.
	 * 
 * @return the JavaScript onUnLoad command
 */

    public String getJavaScript_onUnLoad() {
        return this.javaScript_onUnLoad;
    }

	/**
 * Adds a style class to the HTML body tag
 *
	 * @param htmlStyleClass
	 *            the style class for the HTML body tag
 */
    
    public void setHtmlStyleClass(String htmlStyleClass) {
        this.htmlStyleClass = htmlStyleClass;
    }

	/**
 * Gets the style class of the HTML body tag
 *
 * @return		the style class of the HTML body tag
 */
    
    public String getHtmlStyleClass() {
        return this.htmlStyleClass;
    }
    
    /**
     * Set the margin mirroring. It will mirror margins for odd/even pages.
     * <p>
     * Note: it will not work with {@link Table}.
	 * 
	 * @param marginMirroring
	 *            <CODE>true</CODE> to mirror the margins
     * @return always <CODE>true</CODE>
     */    
    public boolean setMarginMirroring(boolean marginMirroring) {
        this.marginMirroring = marginMirroring;
        DocListener listener;
		for (Iterator iterator = listeners.iterator(); iterator.hasNext();) {
            listener = (DocListener) iterator.next();
            listener.setMarginMirroring(marginMirroring);
        }
        return true;
    }
    
    /**
     * Gets the margin mirroring flag.
	 * 
     * @return the margin mirroring flag
     */    
    public boolean isMarginMirroring() {
        return marginMirroring;
    }
}