Java tutorial
/* * The Kuali Financial System, a comprehensive financial management system for higher education. * * Copyright 2005-2014 The Kuali Foundation * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * 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/>. */ package org.kuali.kfs.module.purap.pdf; import java.io.File; import org.kuali.kfs.module.purap.document.PurchaseOrderDocument; import org.kuali.kfs.sys.context.SpringContext; import org.kuali.rice.core.api.datetime.DateTimeService; import org.kuali.rice.core.api.util.type.KualiDecimal; import org.kuali.rice.krad.util.GlobalVariables; import org.kuali.rice.krad.util.KRADUtils; import org.kuali.rice.krad.util.ObjectUtils; import com.lowagie.text.Document; import com.lowagie.text.Element; import com.lowagie.text.Font; import com.lowagie.text.FontFactory; import com.lowagie.text.Image; import com.lowagie.text.PageSize; import com.lowagie.text.pdf.BaseFont; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfPTable; import com.lowagie.text.pdf.PdfPageEventHelper; import com.lowagie.text.pdf.PdfTemplate; import com.lowagie.text.pdf.PdfWriter; /** * Base class to be extended for implementing PDF documents in Purchasing/Accounts Payable module. */ public class PurapPdf extends PdfPageEventHelper { private static org.apache.log4j.Logger LOG = org.apache.log4j.Logger.getLogger(PurapPdf.class); /** headerTable pieces need to be public */ public PdfTemplate tpl; // A template that will hold the total number of pages. public PdfContentByte cb; public Image logo; public PdfPTable headerTable; public PdfPTable nestedHeaderTable; public String campusName; public PurchaseOrderDocument po; public String logoImage; public BaseFont helv; public String environment; public boolean isPreview = false; public boolean isRetransmit = false; Font ver_4_normal = FontFactory.getFont("VERDANA", 4, 0); Font ver_5_normal = FontFactory.getFont("VERDANA", 5, 0); Font ver_6_normal = FontFactory.getFont("VERDANA", 6, 0); Font ver_8_normal = FontFactory.getFont("VERDANA", 8, 0); Font ver_10_normal = FontFactory.getFont("VERDANA", 10, 0); Font ver_11_normal = FontFactory.getFont("VERDANA", 11, 0); Font ver_12_normal = FontFactory.getFont("VERDANA", 12, 0); Font ver_13_normal = FontFactory.getFont("VERDANA", 13, 0); Font ver_14_normal = FontFactory.getFont("VERDANA", 14, 0); Font ver_15_normal = FontFactory.getFont("VERDANA", 15, 0); Font ver_16_normal = FontFactory.getFont("VERDANA", 16, 0); Font ver_17_normal = FontFactory.getFont("VERDANA", 17, 0); Font ver_6_bold = FontFactory.getFont("VERDANA", 6, 1); Font ver_8_bold = FontFactory.getFont("VERDANA", 8, 1); Font ver_10_bold = FontFactory.getFont("VERDANA", 10, 1); Font cour_7_normal = FontFactory.getFont("COURIER", 7, 0); Font cour_10_normal = FontFactory.getFont("COURIER", 10, 0); Font cour_16_bold = FontFactory.getFont("COURIER", 16, 1); static KualiDecimal zero = KualiDecimal.ZERO; private DateTimeService dateTimeService; public PurapPdf() { super(); } public DateTimeService getDateTimeService() { if (ObjectUtils.isNull(dateTimeService)) { this.dateTimeService = SpringContext.getBean(DateTimeService.class); } return this.dateTimeService; } /** * Overrides the method in PdfPageEventHelper from itext to include our watermark text to indicate that * this is a Test document and include the environment, if the environment is not a production environment. * * @param writer The PdfWriter for this document. * @param document The document. * @see com.lowagie.text.pdf.PdfPageEventHelper#onStartPage(com.lowagie.text.pdf.PdfWriter, com.lowagie.text.Document) */ @Override public void onStartPage(PdfWriter writer, Document document) { if (!KRADUtils.isProductionEnvironment()) { PdfContentByte cb = writer.getDirectContentUnder(); cb.saveState(); cb.beginText(); cb.setFontAndSize(helv, 48); String watermarkText = "Test document (" + environment + ")"; cb.showTextAligned(Element.ALIGN_CENTER, watermarkText, document.getPageSize().width() / 2, document.getPageSize().height() / 2, 45); cb.endText(); cb.restoreState(); } if (GlobalVariables.getUserSession() != null && GlobalVariables.getUserSession().retrieveObject("isPreview") != null) { GlobalVariables.getUserSession().removeObject("isPreview"); PdfContentByte cb = writer.getDirectContentUnder(); cb.saveState(); cb.beginText(); cb.setFontAndSize(helv, 48); String watermarkText = "DRAFT"; cb.showTextAligned(Element.ALIGN_CENTER, watermarkText, document.getPageSize().width() / 2, document.getPageSize().height() / 2, 45); cb.endText(); cb.restoreState(); } } /** * Overrides the method in PdfPageEventHelper from itext to write the headerTable, compose the footer and show the * footer. * * @param writer The PdfWriter for this document. * @param document The document. * @see com.lowagie.text.pdf.PdfPageEventHelper#onEndPage(com.lowagie.text.pdf.PdfWriter, com.lowagie.text.Document) */ @Override public void onEndPage(PdfWriter writer, Document document) { LOG.debug("onEndPage() started."); PdfContentByte cb = writer.getDirectContent(); cb.saveState(); // write the headerTable headerTable.setTotalWidth(document.right() - document.left()); headerTable.writeSelectedRows(0, -1, document.left(), document.getPageSize().height() - 10, cb); // compose the footer String text = "Page " + writer.getPageNumber() + " of "; float textSize = helv.getWidthPoint(text, 12); float textBase = document.bottom() - 20; cb.beginText(); cb.setFontAndSize(helv, 12); // show the footer float adjust = helv.getWidthPoint("0", 12); cb.setTextMatrix(document.right() - textSize - adjust, textBase); cb.showText(text); cb.endText(); cb.addTemplate(tpl, document.right() - adjust, textBase); cb.saveState(); } /** * Overrides the method in the PdfPageEventHelper from itext to put the total number of pages into the template. * * @param writer The PdfWriter for this document. * @param document The document. * @see com.lowagie.text.pdf.PdfPageEventHelper#onCloseDocument(com.lowagie.text.pdf.PdfWriter, com.lowagie.text.Document) */ @Override public void onCloseDocument(PdfWriter writer, Document document) { LOG.debug("onCloseDocument() started."); tpl.beginText(); tpl.setFontAndSize(helv, 12); tpl.setTextMatrix(0, 0); tpl.showText("" + (writer.getPageNumber() - 1)); tpl.endText(); } /** * Gets a PageEvents object. * * @return a new PageEvents object */ public PurapPdf getPageEvents() { LOG.debug("getPageEvents() started."); return new PurapPdf(); } /** * Creates an instance of a new Document and set its margins according to * the given input parameters. * * @param f1 Left margin. * @param f2 Right margin. * @param f3 Top margin. * @param f4 Bottom margin. * @return The created Document object. */ public Document getDocument(float f1, float f2, float f3, float f4) { LOG.debug("getDocument() started"); Document document = new Document(PageSize.A4); // Margins: 36pt = 0.5 inch, 72pt = 1 inch. Left, right, top, bottom. document.setMargins(f1, f2, f3, f4); return document; } /** * Deletes an already created PDF. * * @param pdfFileLocation The location of the pdf file. * @param pdfFilename The name of the pdf file. */ public void deletePdf(String pdfFileLocation, String pdfFilename) { if (LOG.isDebugEnabled()) { LOG.debug("deletePdf() started for po pdf file: " + pdfFilename); } File f = new File(pdfFileLocation + pdfFilename); f.delete(); } }