Java tutorial
/* * * This file is part of the iText (R) project. Copyright (c) 1998-2019 iText Group NV * Authors: Bruno Lowagie, Paulo Soares, et al. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License version 3 * as published by the Free Software Foundation with the addition of the * following permission added to Section 15 as permitted in Section 7(a): * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT * OF THIRD PARTY RIGHTS * * This program 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 Affero General Public License for more details. * You should have received a copy of the GNU Affero General Public License * along with this program; if not, see http://www.gnu.org/licenses or write to * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA, 02110-1301 USA, or download the license from the following URL: * http://itextpdf.com/terms-of-use/ * * The interactive user interfaces in modified source and object code versions * of this program must display Appropriate Legal Notices, as required under * Section 5 of the GNU Affero General Public License. * * In accordance with Section 7(b) of the GNU Affero General Public License, * a covered work must retain the producer line in every PDF that is created * or manipulated using iText. * * You can be released from the requirements of the license by purchasing * a commercial license. Buying such a license is mandatory as soon as you * develop commercial activities involving the iText software without * disclosing the source code of your own applications. * These activities include: offering paid services to customers as an ASP, * serving PDFs on the fly in a web application, shipping iText with a closed * source product. * * For more information, please contact iText Software Corp. at this * address: sales@itextpdf.com */ package com.itextpdf.text.pdf; import java.io.IOException; import com.itextpdf.text.error_messages.MessageLocalization; import com.itextpdf.text.DocumentException; import com.itextpdf.text.Image; /** Represents an imported page. * * @author Paulo Soares */ public class PdfImportedPage extends com.itextpdf.text.pdf.PdfTemplate { PdfReaderInstance readerInstance; int pageNumber; int rotation; /** * True if the imported page has been copied to a writer. * @since iText 5.0.4 */ protected boolean toCopy = true; PdfImportedPage(PdfReaderInstance readerInstance, PdfWriter writer, int pageNumber) { this.readerInstance = readerInstance; this.pageNumber = pageNumber; this.writer = writer; rotation = readerInstance.getReader().getPageRotation(pageNumber); bBox = readerInstance.getReader().getPageSize(pageNumber); setMatrix(1, 0, 0, 1, -bBox.getLeft(), -bBox.getBottom()); type = TYPE_IMPORTED; } /** Reads the content from this <CODE>PdfImportedPage</CODE>-object from a reader. * * @return self * */ public PdfImportedPage getFromReader() { return this; } public int getPageNumber() { return pageNumber; } public int getRotation() { return rotation; } /** Always throws an error. This operation is not allowed. * @param image dummy * @param a dummy * @param b dummy * @param c dummy * @param d dummy * @param e dummy * @param f dummy * @throws DocumentException dummy */ public void addImage(Image image, float a, float b, float c, float d, float e, float f) throws DocumentException { throwError(); } /** Always throws an error. This operation is not allowed. * @param template dummy * @param a dummy * @param b dummy * @param c dummy * @param d dummy * @param e dummy * @param f dummy */ public void addTemplate(PdfTemplate template, float a, float b, float c, float d, float e, float f) { throwError(); } /** Always throws an error. This operation is not allowed. * @return dummy */ public PdfContentByte getDuplicate() { throwError(); return null; } /** * Gets the stream representing this page. * * @param compressionLevel the compressionLevel * @return the stream representing this page * @since 2.1.3 (replacing the method without param compressionLevel) */ public PdfStream getFormXObject(int compressionLevel) throws IOException { return readerInstance.getFormXObject(pageNumber, compressionLevel); } public void setColorFill(PdfSpotColor sp, float tint) { throwError(); } public void setColorStroke(PdfSpotColor sp, float tint) { throwError(); } PdfObject getResources() { return readerInstance.getResources(pageNumber); } /** Always throws an error. This operation is not allowed. * @param bf dummy * @param size dummy */ public void setFontAndSize(BaseFont bf, float size) { throwError(); } /** * Always throws an error. This operation is not allowed. * @param group New value of property group. * @since 2.1.6 */ public void setGroup(PdfTransparencyGroup group) { throwError(); } void throwError() { throw new RuntimeException( MessageLocalization.getComposedMessage("content.can.not.be.added.to.a.pdfimportedpage")); } PdfReaderInstance getPdfReaderInstance() { return readerInstance; } /** * Checks if the page has to be copied. * @return true if the page has to be copied. * @since iText 5.0.4 */ public boolean isToCopy() { return toCopy; } /** * Indicate that the resources of the imported page have been copied. * @since iText 5.0.4 */ public void setCopied() { toCopy = false; } }