annotation.java

iText可以制作中文PDF文件的JAVA源程序

            lly = Float.valueOf(value + "f").floatValue();
        }
        value = (String)attributes.remove(ElementTags.URX);
        if (value != null) {
            urx = Float.valueOf(value + "f").floatValue();
        }
        value = (String)attributes.remove(ElementTags.URY);
        if (value != null) {
            ury = Float.valueOf(value + "f").floatValue();
        }
        String title = (String)attributes.remove(ElementTags.TITLE);
        String text = (String)attributes.remove(ElementTags.CONTENT);
        if (title != null || text != null) {
            annotationtype = TEXT;
        }
        else if ((value = (String)attributes.remove(ElementTags.URL)) != null) {
            annotationtype = URL_AS_STRING;
            annotationAttributes.put(FILE, value);
        }
        else if ((value = (String)attributes.remove(ElementTags.NAMED)) != null) {
            annotationtype = NAMED_DEST;
            annotationAttributes.put(NAMED, Integer.valueOf(value));
        }
        else {
            String file = (String)attributes.remove(ElementTags.FILE);
            String destination = (String)attributes.remove(ElementTags.DESTINATION);
            String page = (String)attributes.remove(ElementTags.PAGE);
            if (file != null) {
                annotationAttributes.put(FILE, file);
                if (destination != null) {
                    annotationtype = FILE_DEST;
                    annotationAttributes.put(DESTINATION, destination);
                }
                else if (page != null) {
                    annotationtype = FILE_PAGE;
                    annotationAttributes.put(FILE, file);
                    annotationAttributes.put(PAGE, Integer.valueOf(page));
                }
            }
            else if ((value = (String)attributes.remove(ElementTags.NAMED)) != null) {
                annotationtype = LAUNCH;
                annotationAttributes.put(APPLICATION, value);
                annotationAttributes.put(PARAMETERS, (String)attributes.remove(ElementTags.PARAMETERS));
                annotationAttributes.put(OPERATION, (String)attributes.remove(ElementTags.OPERATION));
                annotationAttributes.put(DEFAULTDIR, (String)attributes.remove(ElementTags.DEFAULTDIR));
            }
        }
        if (annotationtype == TEXT) {
            if (title == null) title = "";
            if (text == null) text = "";
            annotationAttributes.put(TITLE, title);
            annotationAttributes.put(CONTENT, text);
        }
        if (attributes.size() > 0) setMarkupAttributes(attributes);
    }
    
    // implementation of the Element-methods
    
/**
 * Gets the type of the text element.
 *
 * @return	a type
 */
    
    public int type() {
        return Element.ANNOTATION;
    }
    
    // methods
    
/**
 * 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 (llx == Float.NaN) return def;
        return llx;
    }
    
/**
 * Returns the lower left y-value.
 *
 * @param       def     the default value
 * @return	a value
 */
    
    public float lly(float def) {
        if (lly == Float.NaN) return def;
        return lly;
    }
    
/**
 * Returns the upper right x-value.
 *
 * @param   def    the default value
 * @return	a value
 */
    
    public float urx(float def) {
        if (urx == Float.NaN) return def;
        return urx;
    }
    
/**
 * Returns the upper right y-value.
 *
 * @param   def    the default value
 * @return	a value
 */
    
    public float ury(float def) {
        if (ury == Float.NaN) 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;
    }
    
/**
 * Checks if a given tag corresponds with this object.
 *
 * @param   tag     the given tag
 * @return  true if the tag corresponds
 */
    
    public static boolean isTag(String tag) {
        return ElementTags.ANNOTATION.equals(tag);
    }
    
    
/**
 * @see com.lowagie.text.MarkupAttributes#setMarkupAttribute(java.lang.String, java.lang.String)
 */
    public void setMarkupAttribute(String name, String value) {
        markupAttributes = (markupAttributes == null) ? new Properties() : markupAttributes;
        markupAttributes.put(name, value);
    }
    
/**
 * @see com.lowagie.text.MarkupAttributes#setMarkupAttributes(java.util.Properties)
 */
    public void setMarkupAttributes(Properties markupAttributes) {
        this.markupAttributes = markupAttributes;
    }
    
/**
 * @see com.lowagie.text.MarkupAttributes#getMarkupAttribute(java.lang.String)
 */
    public String getMarkupAttribute(String name) {
        return (markupAttributes == null) ? null : String.valueOf(markupAttributes.get(name));
    }
    
/**
 * @see com.lowagie.text.MarkupAttributes#getMarkupAttributeNames()
 */
    public Set getMarkupAttributeNames() {
        return Chunk.getKeySet(markupAttributes);
    }
    
/**
 * @see com.lowagie.text.MarkupAttributes#getMarkupAttributes()
 */
    public Properties getMarkupAttributes() {
        return markupAttributes;
    }
}