001/* 002 * $Id: PdfImportedPage.java 4784 2011-03-15 08:33:00Z blowagie $ 003 * 004 * This file is part of the iText (R) project. 005 * Copyright (c) 1998-2011 1T3XT BVBA 006 * Authors: Bruno Lowagie, Paulo Soares, et al. 007 * 008 * This program is free software; you can redistribute it and/or modify 009 * it under the terms of the GNU Affero General Public License version 3 010 * as published by the Free Software Foundation with the addition of the 011 * following permission added to Section 15 as permitted in Section 7(a): 012 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY 1T3XT, 013 * 1T3XT DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS. 014 * 015 * This program is distributed in the hope that it will be useful, but 016 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 017 * or FITNESS FOR A PARTICULAR PURPOSE. 018 * See the GNU Affero General Public License for more details. 019 * You should have received a copy of the GNU Affero General Public License 020 * along with this program; if not, see http://www.gnu.org/licenses or write to 021 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 022 * Boston, MA, 02110-1301 USA, or download the license from the following URL: 023 * http://itextpdf.com/terms-of-use/ 024 * 025 * The interactive user interfaces in modified source and object code versions 026 * of this program must display Appropriate Legal Notices, as required under 027 * Section 5 of the GNU Affero General Public License. 028 * 029 * In accordance with Section 7(b) of the GNU Affero General Public License, 030 * a covered work must retain the producer line in every PDF that is created 031 * or manipulated using iText. 032 * 033 * You can be released from the requirements of the license by purchasing 034 * a commercial license. Buying such a license is mandatory as soon as you 035 * develop commercial activities involving the iText software without 036 * disclosing the source code of your own applications. 037 * These activities include: offering paid services to customers as an ASP, 038 * serving PDFs on the fly in a web application, shipping iText with a closed 039 * source product. 040 * 041 * For more information, please contact iText Software Corp. at this 042 * address: sales@itextpdf.com 043 */ 044package com.itextpdf.text.pdf; 045import java.io.IOException; 046import com.itextpdf.text.error_messages.MessageLocalization; 047 048import com.itextpdf.text.DocumentException; 049import com.itextpdf.text.Image; 050 051/** Represents an imported page. 052 * 053 * @author Paulo Soares 054 */ 055public class PdfImportedPage extends com.itextpdf.text.pdf.PdfTemplate { 056 057 PdfReaderInstance readerInstance; 058 int pageNumber; 059 /** 060 * True if the imported page has been copied to a writer. 061 * @since iText 5.0.4 062 */ 063 protected boolean toCopy = true; 064 065 PdfImportedPage(PdfReaderInstance readerInstance, PdfWriter writer, int pageNumber) { 066 this.readerInstance = readerInstance; 067 this.pageNumber = pageNumber; 068 this.writer = writer; 069 bBox = readerInstance.getReader().getPageSize(pageNumber); 070 setMatrix(1, 0, 0, 1, -bBox.getLeft(), -bBox.getBottom()); 071 type = TYPE_IMPORTED; 072 } 073 074 /** Reads the content from this <CODE>PdfImportedPage</CODE>-object from a reader. 075 * 076 * @return self 077 * 078 */ 079 public PdfImportedPage getFromReader() { 080 return this; 081 } 082 083 public int getPageNumber() { 084 return pageNumber; 085 } 086 087 088 /** Always throws an error. This operation is not allowed. 089 * @param image dummy 090 * @param a dummy 091 * @param b dummy 092 * @param c dummy 093 * @param d dummy 094 * @param e dummy 095 * @param f dummy 096 * @throws DocumentException dummy */ 097 public void addImage(Image image, float a, float b, float c, float d, float e, float f) throws DocumentException { 098 throwError(); 099 } 100 101 /** Always throws an error. This operation is not allowed. 102 * @param template dummy 103 * @param a dummy 104 * @param b dummy 105 * @param c dummy 106 * @param d dummy 107 * @param e dummy 108 * @param f dummy */ 109 public void addTemplate(PdfTemplate template, float a, float b, float c, float d, float e, float f) { 110 throwError(); 111 } 112 113 /** Always throws an error. This operation is not allowed. 114 * @return dummy */ 115 public PdfContentByte getDuplicate() { 116 throwError(); 117 return null; 118 } 119 120 /** 121 * Gets the stream representing this page. 122 * 123 * @param compressionLevel the compressionLevel 124 * @return the stream representing this page 125 * @since 2.1.3 (replacing the method without param compressionLevel) 126 */ 127 PdfStream getFormXObject(int compressionLevel) throws IOException { 128 return readerInstance.getFormXObject(pageNumber, compressionLevel); 129 } 130 131 public void setColorFill(PdfSpotColor sp, float tint) { 132 throwError(); 133 } 134 135 public void setColorStroke(PdfSpotColor sp, float tint) { 136 throwError(); 137 } 138 139 PdfObject getResources() { 140 return readerInstance.getResources(pageNumber); 141 } 142 143 /** Always throws an error. This operation is not allowed. 144 * @param bf dummy 145 * @param size dummy */ 146 public void setFontAndSize(BaseFont bf, float size) { 147 throwError(); 148 } 149 150 /** 151 * Always throws an error. This operation is not allowed. 152 * @param group New value of property group. 153 * @since 2.1.6 154 */ 155 public void setGroup(PdfTransparencyGroup group) { 156 throwError(); 157 } 158 159 void throwError() { 160 throw new RuntimeException(MessageLocalization.getComposedMessage("content.can.not.be.added.to.a.pdfimportedpage")); 161 } 162 163 PdfReaderInstance getPdfReaderInstance() { 164 return readerInstance; 165 } 166 167 /** 168 * Checks if the page has to be copied. 169 * @return true if the page has to be copied. 170 * @since iText 5.0.4 171 */ 172 public boolean isToCopy() { 173 return toCopy; 174 } 175 176 /** 177 * Indicate that the resources of the imported page have been copied. 178 * @since iText 5.0.4 179 */ 180 public void setCopied() { 181 toCopy = false; 182 } 183}