pdftemplate.java

一个java操作pdf文件的开发包,很好用的.

/*
 * $Id: PdfTemplate.java,v 1.27 2002/07/09 11:28:24 blowagie Exp $
 * $Name:  $
 *
 * Copyright 2001, 2002 Paulo Soares
 *
 * The contents of this file are subject to the Mozilla Public License Version 1.1
 * (the "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the License.
 *
 * The Original Code is 'iText, a free JAVA-PDF library'.
 *
 * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
 * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
 * All Rights Reserved.
 * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
 * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
 *
 * Contributor(s): all the names of the contributors are added in the source code
 * where applicable.
 *
 * Alternatively, the contents of this file may be used under the terms of the
 * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
 * provisions of LGPL are applicable instead of those above.  If you wish to
 * allow use of your version of this file only under the terms of the LGPL
 * License and not to allow others to use your version of this file under
 * the MPL, indicate your decision by deleting the provisions above and
 * replace them with the notice and other provisions required by the LGPL.
 * If you do not delete the provisions above, a recipient may use your version
 * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the MPL as stated above or under the terms of the GNU
 * Library General Public License as published by the Free Software Foundation;
 * either version 2 of the License, or any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
 * details.
 *
 * If you didn't download this code from the following link, you should check if
 * you aren't using an obsolete version:
 * http://www.lowagie.com/iText/
 */

package com.lowagie.text.pdf;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Image;
import com.lowagie.text.Rectangle;
import java.io.IOException;
import java.awt.Color;

/**
 * Implements the form XObject.
 */

public class PdfTemplate extends PdfContentByte {
    public static final int TYPE_TEMPLATE = 1;
    public static final int TYPE_IMPORTED = 2;
    public static final int TYPE_PATTERN = 3;
    protected int type;
    /** The indirect reference to this template */
    protected PdfIndirectReference thisReference;
    
    /** The fonts used by this template */
    protected PdfFontDictionary fontDictionary;
    
    /** The images and other templates used by this template */
    protected PdfXObjectDictionary xObjectDictionary;
    
    protected PdfColorDictionary colorDictionary;
    
    protected PdfPatternDictionary patternDictionary;
    
    protected PdfShadingDictionary shadingDictionary;
    
    /** The bounding box of this template */
    protected Rectangle bBox = new Rectangle(0, 0);
    
    protected PdfArray matrix;
    
    /**
     *Creates a <CODE>PdfTemplate</CODE>.
     */
    
    protected PdfTemplate() {
        super(null);
        type = TYPE_TEMPLATE;
    }
    
    /**
     * Creates new PdfTemplate
     *
     * @param wr the <CODE>PdfWriter</CODE>
     */
    
    PdfTemplate(PdfWriter wr) {
        super(wr);
        type = TYPE_TEMPLATE;
        fontDictionary = new PdfFontDictionary();
        xObjectDictionary = new PdfXObjectDictionary();
        colorDictionary = new PdfColorDictionary();
        patternDictionary = new PdfPatternDictionary();
        shadingDictionary = new PdfShadingDictionary();
        thisReference = writer.getPdfIndirectReference();
    }
    
    /**
     * Sets the bounding width of this template.
     *
     * @param width the bounding width
     */
    
    public void setWidth(float width) {
        bBox.setLeft(0);
        bBox.setRight(width);
    }
    
    /**
     * Sets the bounding heigth of this template.
     *
     * @param height the bounding height
     */
    
    public void setHeight(float height) {
        bBox.setBottom(0);
        bBox.setTop(height);
    }
    
    /**
     * Gets the bounding width of this template.
     *
     * @return width the bounding width
     */
    public float getWidth() {
        return bBox.width();
    }
    
    /**
     * Gets the bounding heigth of this template.
     *
     * @return heigth the bounding height
     */
    
    public float getHeight() {
        return bBox.height();
    }
    
    public Rectangle getBoundingBox() {
        return bBox;
    }
    
    public void setBoundingBox(Rectangle bBox) {
        this.bBox = bBox;
    }
    
    public void setMatrix(float a, float b, float c, float d, float e, float f) {
		matrix = new PdfArray();
		matrix.add(new PdfNumber(a));
		matrix.add(new PdfNumber(b));
		matrix.add(new PdfNumber(c));
		matrix.add(new PdfNumber(d));
		matrix.add(new PdfNumber(e));
		matrix.add(new PdfNumber(f));
	}

	PdfArray getMatrix() {
		return matrix;
	}
    
    /**
     * Gets the indirect reference to this template.
     *
     * @return the indirect reference to this template
     */
    
    PdfIndirectReference getIndirectReference() {
        return thisReference;
    }
    
    /**
     * Adds a template to this template.
     *
     * @param template the template
     * @param a an element of the transformation matrix
     * @param b an element of the transformation matrix
     * @param c an element of the transformation matrix
     * @param d an element of the transformation matrix
     * @param e an element of the transformation matrix
     * @param f an element of the transformation matrix
     */
    
    public void addTemplate(PdfTemplate template, float a, float b, float c, float d, float e, float f) {
        checkNoPattern(template);
        PdfName name = writer.addDirectTemplateSimple(template);
        content.append("q ");
        content.append(a).append(' ');
        content.append(b).append(' ');
        content.append(c).append(' ');
        content.append(d).append(' ');
        content.append(e).append(' ');
        content.append(f).append(" cm ");
        content.append(name.toString()).append(" Do Q").append_i(separator);
        xObjectDictionary.put(name, template.getIndirectReference());
    }
    
    /**
     * Adds an <CODE>Image</CODE> to this template. The positioning of the <CODE>Image</CODE>
     * is done with the transformation matrix. To position an <CODE>image</CODE> at (x,y)
     * use addImage(image, image_width, 0, 0, image_height, x, y).
     * @param image the <CODE>Image</CODE> object
     * @param a an element of the transformation matrix