pdfoutline.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

        StringBuffer buf = new StringBuffer();
        for (Iterator i = title.getChunks().iterator(); i.hasNext(); ) {
            Chunk chunk = (Chunk) i.next();
            buf.append(chunk.getContent());
        }
        this.action = action;
        initOutline(parent, buf.toString(), open);
    }
    
    /**
     * Constructs a <CODE>PdfOutline</CODE>.
     * <P>
     * This is the constructor for an <CODE>outline entry</CODE>. The open mode is
     * <CODE>true</CODE>.
     *
     * @param parent the parent of this outline item
     * @param destination the destination for this outline item
     * @param title the title of this outline item
     */
    
    public PdfOutline(PdfOutline parent, PdfDestination destination, Paragraph title) {
        this(parent, destination, title, true);
    }
    
    /**
     * Constructs a <CODE>PdfOutline</CODE>.
     * <P>
     * This is the constructor for an <CODE>outline entry</CODE>.
     *
     * @param parent the parent of this outline item
     * @param destination the destination for this outline item
     * @param title the title of this outline item
     * @param open <CODE>true</CODE> if the children are visible
     */
    public PdfOutline(PdfOutline parent, PdfDestination destination, Paragraph title, boolean open) {
        super();
        StringBuffer buf = new StringBuffer();
        for (Iterator i = title.getChunks().iterator(); i.hasNext(); ) {
            Chunk chunk = (Chunk) i.next();
            buf.append(chunk.getContent());
        }
        this.destination = destination;
        initOutline(parent, buf.toString(), open);
    }
    
    
    // methods
    
    /** Helper for the constructors.
     * @param parent the parent outline
     * @param title the title for this outline
     * @param open <CODE>true</CODE> if the children are visible
     */
    void initOutline(PdfOutline parent, String title, boolean open) {
        this.open = open;
        this.parent = parent;
        writer = parent.writer;
        put(PdfName.TITLE, new PdfString(title, PdfObject.TEXT_UNICODE));
        parent.addKid(this);
        if (destination != null && !destination.hasPage()) // bugfix Finn Bock
            setDestinationPage(writer.getCurrentPage());
    }
    
    /**
     * Sets the indirect reference of this <CODE>PdfOutline</CODE>.
     *
     * @param reference the <CODE>PdfIndirectReference</CODE> to this outline.
     */
    
    public void setIndirectReference(PdfIndirectReference reference) {
        this.reference = reference;
    }
    
    /**
     * Gets the indirect reference of this <CODE>PdfOutline</CODE>.
     *
     * @return		the <CODE>PdfIndirectReference</CODE> to this outline.
     */
    
    public PdfIndirectReference indirectReference() {
        return reference;
    }
    
    /**
     * Gets the parent of this <CODE>PdfOutline</CODE>.
     *
     * @return		the <CODE>PdfOutline</CODE> that is the parent of this outline.
     */
    
    public PdfOutline parent() {
        return parent;
    }
    
    /**
     * Set the page of the <CODE>PdfDestination</CODE>-object.
     *
     * @param pageReference indirect reference to the page
     * @return <CODE>true</CODE> if this page was set as the <CODE>PdfDestination</CODE>-page.
     */
    
    public boolean setDestinationPage(PdfIndirectReference pageReference) {
        if (destination == null) {
            return false;
        }
        return destination.addPage(pageReference);
    }
    
    /**
     * Gets the destination for this outline.
     * @return the destination
     */
    public PdfDestination getPdfDestination() {
        return destination;
    }
    
    int getCount() {
        return count;
    }

    void setCount(int count) {
        this.count = count;
    }
    
    /**
     * returns the level of this outline.
     *
     * @return		a level
     */
    
    public int level() {
        if (parent == null) {
            return 0;
        }
        return (parent.level() + 1);
    }
    
    /**
     * Returns the PDF representation of this <CODE>PdfOutline</CODE>.
     *
     * @param writer the encryption information
     * @param os
     * @throws IOException
     */
    
    public void toPdf(PdfWriter writer, OutputStream os) throws IOException {
        if (color != null && !color.equals(Color.black)) {
            put(PdfName.C, new PdfArray(new float[]{color.getRed()/255f,color.getGreen()/255f,color.getBlue()/255f}));
        }
        int flag = 0;
        if ((style & Font.BOLD) != 0)
            flag |= 2;
        if ((style & Font.ITALIC) != 0)
            flag |= 1;
        if (flag != 0)
            put(PdfName.F, new PdfNumber(flag));
        if (parent != null) {
            put(PdfName.PARENT, parent.indirectReference());
        }
        if (destination != null && destination.hasPage()) {
            put(PdfName.DEST, destination);
        }
        if (action != null)
            put(PdfName.A, action);
        if (count != 0) {
            put(PdfName.COUNT, new PdfNumber(count));
        }
        super.toPdf(writer, os);
    }
    
    /**
     * Adds a kid to the outline
     * @param outline
     */
    public void addKid(PdfOutline outline) {
        kids.add(outline);
    }
    
    /**
     * Returns the kids of this outline
     * @return an ArrayList with PdfOutlines
     */
    public ArrayList getKids() {
        return kids;
    }
    
    /**
     * Sets the kids of this outline
     * @param kids
     */
    public void setKids(ArrayList kids) {
        this.kids = kids;
    }
    
    /** Getter for property tag.
     * @return Value of property tag.
     */
    public String getTag() {
        return tag;
    }
    
    /** Setter for property tag.
     * @param tag New value of property tag.
     */
    public void setTag(String tag) {
        this.tag = tag;
    }
    
    /**
     * Gets the title of this outline
     * @return the title as a String
     */
    public String getTitle() {
        PdfString title = (PdfString)get(PdfName.TITLE);
        return title.toString();
    }
    
    /**
     * Sets the title of this outline
     * @param title
     */
    public void setTitle(String title) {
        put(PdfName.TITLE, new PdfString(title, PdfObject.TEXT_UNICODE));
    }
    
    /** Getter for property open.
     * @return Value of property open.
     */
    public boolean isOpen() {
        return open;
    }
    
    /** Setter for property open.
     * @param open New value of property open.
     */
    public void setOpen(boolean open) {
        this.open = open;
    }
    
    /** Getter for property color.
     * @return Value of property color.
     *
     */
    public Color getColor() {
        return this.color;
    }
    
    /** Setter for property color.
     * @param color New value of property color.
     *
     */
    public void setColor(Color color) {
        this.color = color;
    }
    
    /** Getter for property style.
     * @return Value of property style.
     *
     */
    public int getStyle() {
        return this.style;
    }
    
    /** Setter for property style.
     * @param style New value of property style.
     *
     */
    public void setStyle(int style) {
        this.style = style;
    }
    
}