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This powerful reporting library aims to simplify producing reports using iText. The most demanding and coding intensive tasks
when producing reports with iText are how to get from data to report elements, how to style those blocks and how to evaluate (debug) the resulting report
layout. Exactly those three tasks are simplified by this library: xml configuration and/or annotations to
transform existing Java data objects into report block, provide styling information (css like, syntax independent) seperate from code, a firebug like debug
mode to help evaluate your report.
package com.vectorprint.report.itext;
/*
* #%L
* VectorPrintReport4.0
* %%
* Copyright (C) 2012 - 2013 VectorPrint
* %%
* 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 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 extends PdfPageEventHelper
implements StylerFactory, ReportDataAware {
public static final String UPTO = "upto";
private static final Logger log = Logger.getLogger(EventHelper.class.getName());
private ElementProducer elementProducer;
private RD reportData;
private PdfTemplate template;
private StylerFactory stylerFactory;
private boolean failuresHereAfter = false, debugHereAfter = false;
private int lastPage;
private java.util.List doForAllPages = new ArrayList(1);
private Map> doOnGenericTag = new HashMap>(10);
private Map imageChunks = new HashMap(10);
private Map rectangles = new HashMap(10);
private ItextHelper itextHelper;
protected ElementProducer getElementProducer() {
return elementProducer;
}
void setElementProvider(ElementProducer elementProvider) {
this.elementProducer = elementProvider;
if (elementProvider instanceof DefaultElementProducer) {
((DefaultElementProducer) elementProvider).setPh(this);
}
}
/**
* key for looking up stylers in the settings that will be used for styling the footer
*/
public static final String PAGEFOOTERSTYLEKEY = "pagefooter";
/**
* the default stylers used to style the footer
*/
public static final String[] PAGEFOOTERSTYLE = new String[]{"Font(size=12)","Border(position=top,borderwidth=1)","Padding(padding=0)"};
/**
* key for looking up stylers in the settings that will be used for styling the footer table. The default value for
* this will be calculated based on document measures
*/
public static final String PAGEFOOTERTABLEKEY = "pagefootertable";
void setItextStylerFactory(StylerFactory itextStylerFactory) {
this.stylerFactory = itextStylerFactory;
itextHelper = new ItextHelper();
}
/**
* prepares template for printing header and footer
*
* @param writer
* @param document
*/
@Override
public final void onOpenDocument(PdfWriter writer, Document document) {
super.onOpenDocument(writer, document);
template = writer.getDirectContent().createTemplate(document.getPageSize().getWidth(), document.getPageSize().getHeight());
if (!getSettings().containsKey(PAGEFOOTERSTYLEKEY)) {
getSettings().put(PAGEFOOTERSTYLEKEY, PAGEFOOTERSTYLE);
}
if (!getSettings().containsKey(PAGEFOOTERTABLEKEY)) {
float tot = ItextHelper.ptsToMm(document.getPageSize().getWidth() - document.leftMargin() - document.rightMargin());
getSettings().put(PAGEFOOTERTABLEKEY, new StringBuilder("Table(columns=3,widths=")
.append(Math.round(tot * getSettings().getFloatProperty(0.85f, "footerleftwidthpercentage"))).append('|')
.append(Math.round(tot * getSettings().getFloatProperty(0.14f, "footermiddlewidthpercentage"))).append('|')
.append(Math.round(tot * getSettings().getFloatProperty(0.01f, "footerrightwidthpercentage"))).append(')').toString()
);
}
}
/**
* prints debug info when property debug is true, calls renderHeader and renderFooter and
* {@link Advanced#draw(com.itextpdf.text.Rectangle, java.lang.String) } with {@link Document#getPageSize() }
* and null for {@link DefaultStylerFactory#PAGESTYLERS}.
*
* @param writer
* @param document
*/
@Override
public final void onEndPage(PdfWriter writer, Document document) {
super.onEndPage(writer, document);
sanitize(writer);
try {
if (failuresHereAfter || debugHereAfter) {
PdfContentByte bg = writer.getDirectContentUnder();
Rectangle rect = writer.getPageSize();
rect.setBackgroundColor(itextHelper.fromColor(getSettings().getColorProperty(new Color(240, 240, 240), "legendbackground")));
bg.rectangle(rect);
bg.closePathFillStroke();
} else {
for (Advanced a : doForAllPages) {
try {
if (a.shouldDraw(null)) {
a.draw(document.getPageSize(), null);
}
} catch (VectorPrintException ex) {
throw new VectorPrintRuntimeException(ex);
}
}
}
if (!debugHereAfter && getSettings().getBooleanProperty(false, DEBUG)) {
PdfContentByte canvas = writer.getDirectContent();
Rectangle rect = new Rectangle(document.leftMargin(),
document.bottomMargin(),
document.right() - document.rightMargin(),
document.top() - document.topMargin());
DebugHelper.debugRect(canvas, rect, new float[]{10, 2}, 0.3f, getSettings(), stylerFactory.getLayerManager());
}
renderHeader(writer, document);
maxTagForGenericTagOnPage = ((DefaultElementProducer) elementProducer).getAdvancedTag();
if (getSettings().getBooleanProperty(Boolean.FALSE, ReportConstants.PRINTFOOTER)) {
renderFooter(writer, document);
} else {
log.warning("not printing footer, if you want page footers set " + ReportConstants.PRINTFOOTER + " to true");
}
maxTagForGenericTagOnPage = Integer.MAX_VALUE;
} catch (VectorPrintException e) {
throw new VectorPrintRuntimeException("failed to create the report header or footer: ", e);
} catch (DocumentException e) {
throw new VectorPrintRuntimeException("failed to create the report header or footer: ", e);
} catch (InstantiationException ex) {
throw new VectorPrintRuntimeException("failed to create the report header or footer: ", ex);
} catch (IllegalAccessException ex) {
throw new VectorPrintRuntimeException("failed to create the report header or footer: ", ex);
}
}
public static void sanitize(PdfWriter writer) {
while (true) {
try {
writer.getDirectContent().sanityCheck();
break;
} catch (IllegalPdfSyntaxException e) {
if (e.getMessage().toLowerCase().contains("layer")) {
writer.getDirectContent().endLayer();
} else if (e.getMessage().toLowerCase().contains("state")) {
writer.getDirectContent().restoreState();
} else {
break;
}
}
}
while (true) {
try {
writer.getDirectContentUnder().sanityCheck();
break;
} catch (IllegalPdfSyntaxException e) {
if (e.getMessage().toLowerCase().contains("layer")) {
writer.getDirectContentUnder().endLayer();
} else if (e.getMessage().toLowerCase().contains("state")) {
writer.getDirectContentUnder().restoreState();
} else {
break;
}
}
}
}
/**
* when failure information is appended to the report, a header on each page will be printed refering to this
* information.
*
* @param template
* @param x
* @param y
*/
protected void printFailureHeader(PdfTemplate template, float x, float y) {
Font f = DebugHelper.debugFontLink(template, getSettings());
Chunk c = new Chunk(getSettings().getProperty("failures in report, see end of report", "failureheader"), f);
ColumnText.showTextAligned(template, Element.ALIGN_LEFT, new Phrase(c), x, y, 0);
}
/**
* When the setting {@link ReportConstants#PRINTFOOTER} is true prints the total number of pages on each page when
* the document is closed. Note that
*
* @param template
* @see #PAGEFOOTERSTYLEKEY
* @param x
* @param y
*/
protected void printTotalPages(PdfTemplate template, float x, float y) throws VectorPrintException, InstantiationException, IllegalAccessException {
if (getSettings().getBooleanProperty(Boolean.FALSE, ReportConstants.PRINTFOOTER)) {
Phrase p = elementProducer.createElement(String.valueOf(lastPage), Phrase.class, stylerFactory.getStylers(PAGEFOOTERSTYLEKEY));
ColumnText.showTextAligned(template, Element.ALIGN_LEFT, p, x, y, 0);
}
}
/**
* prints a failure and / or a debug header when applicable.
*
* @see #getTemplateImage(com.itextpdf.text.pdf.PdfTemplate)
* @param writer
* @param document
* @throws DocumentException
* @throws VectorPrintException
*/
private final void renderHeader(PdfWriter writer, Document document) throws DocumentException, VectorPrintException {
if ((!debugHereAfter && getSettings().getBooleanProperty(false, DEBUG))
|| (!failuresHereAfter && !getSettings().getBooleanProperty(false, DEBUG))) {
writer.getDirectContent().addImage(getTemplateImage(template));
if (getSettings().getBooleanProperty(false, DEBUG)) {
ArrayList a = new ArrayList(2);
a.add(PdfName.TOGGLE);
a.add(elementProducer.initLayerGroup(DEBUG, writer.getDirectContent()));
PdfAction act = PdfAction.setOCGstate(a, true);
Chunk h = new Chunk("toggle debug info", DebugHelper.debugFontLink(writer.getDirectContent(), getSettings())).setAction(act);
ColumnText.showTextAligned(writer.getDirectContent(), Element.ALIGN_LEFT, new Phrase(h), 10, document.top() - 15, 0);
Font f = DebugHelper.debugFontLink(writer.getDirectContent(), getSettings());
// act = PdfAction.gotoLocalPage("debugpage", true);
elementProducer.startLayerInGroup(DEBUG, writer.getDirectContent());
h = new Chunk(getSettings().getProperty("go to debug legend", "debugheader"), f).setLocalGoto(BaseReportGenerator.DEBUGPAGE);
ColumnText.showTextAligned(writer.getDirectContent(), Element.ALIGN_LEFT, new Phrase(h), 10, document.top() - 3, 0);
writer.getDirectContent().endLayer();
}
}
}
/**
* calls {@link #printTotalPages(com.itextpdf.text.pdf.PdfTemplate, float, float) }
* with {@link #PAGEFOOTERSTYLE a font from setup}, document.right() and the calculated bottom of the footertable.
* Clears the layermanager. When applicable calls {@link #printFailureHeader(com.itextpdf.text.pdf.PdfTemplate, float, float)
* }
*
* @param writer
* @param document
*/
@Override
public void onCloseDocument(PdfWriter writer, Document document) {
super.onCloseDocument(writer, document);
if (getSettings().getBooleanProperty(Boolean.FALSE, ReportConstants.PRINTFOOTER)) {
try {
printTotalPages(template, document.right(), footerBottom);
} catch (VectorPrintException ex) {
throw new VectorPrintRuntimeException(ex);
} catch (InstantiationException ex) {
throw new VectorPrintRuntimeException(ex);
} catch (IllegalAccessException ex) {
throw new VectorPrintRuntimeException(ex);
}
}
if (failuresHereAfter) {
printFailureHeader(template, 10, document.top() - 10);
}
}
/**
* creates a footer cell using an instance of {@link com.vectorprint.report.itext.styleAndAddToReport.stylers.Font}
*
* @see #PAGEFOOTERSTYLEKEY
* @see StylerFactory#getStylers(java.lang.String...)
* @param val
* @return
* @throws VectorPrintException
*/
private PdfPCell createFooterCell(Object val) throws VectorPrintException {
try {
return elementProducer.createElement(val, PdfPCell.class, getStylers(PAGEFOOTERSTYLEKEY));
} catch (InstantiationException ex) {
throw new VectorPrintException(ex);
} catch (IllegalAccessException ex) {
throw new VectorPrintException(ex);
}
}
private int maxTagForGenericTagOnPage = Integer.MAX_VALUE;
/**
* prints a footer table with a line at the top, a date and page numbering, second cell will be right aligned
*
* @see #PAGEFOOTERTABLEKEY
* @see #PAGEFOOTERSTYLEKEY
*
* @param writer
* @param document
* @throws DocumentException
* @throws VectorPrintException
*/
protected void renderFooter(PdfWriter writer, Document document) throws DocumentException, VectorPrintException, InstantiationException, IllegalAccessException {
if (!debugHereAfter && !failuresHereAfter) {
PdfPTable footerTable = elementProducer.createElement(null, PdfPTable.class, getStylers(PAGEFOOTERTABLEKEY));
footerTable.addCell(createFooterCell(ValueHelper.createDate(new Date())));
String pageText = writer.getPageNumber() + getSettings().getProperty(" of ", UPTO);
PdfPCell c = createFooterCell(pageText);
c.setHorizontalAlignment(Element.ALIGN_RIGHT);
footerTable.addCell(c);
footerTable.addCell(createFooterCell(new Chunk()));
footerTable.writeSelectedRows(0, -1, document.getPageSize().getLeft() + document.leftMargin(),
document.getPageSize().getBottom(document.bottomMargin()), writer.getDirectContentUnder());
footerBottom = document.bottom() - footerTable.getTotalHeight();
}
}
private float footerBottom = 0;
private Image templateImage;
/**
* this image will be used for painting the total number of pages and for a failure header when failures are printed
* inside the report.
*
* @see #printFailureHeader(com.itextpdf.text.pdf.PdfTemplate, float, float)
* @see #printTotalPages(com.itextpdf.text.pdf.PdfTemplate, float, float)
* @param template
* @return
* @throws BadElementException
*/
protected Image getTemplateImage(PdfTemplate template) throws BadElementException {
if (templateImage == null) {
templateImage = Image.getInstance(template);
templateImage.setAbsolutePosition(0, 0);
}
return templateImage;
}
@Override
public void setReportDataHolder(RD reportData) {
this.reportData = reportData;
}
@Override
public RD getReportDataHolder() {
return this.reportData;
}
/**
* Calls the super and {@link Advanced#draw(com.itextpdf.text.Rectangle, java.lang.String) } for each Advanced styler
* registered. Adds a debugging link for images when in debug mode.
*
* @param writer
* @param document
* @param rect
* @param genericTag
* @see #addDelayedStyler(java.lang.String, java.util.Collection, com.itextpdf.text.Chunk)
* @see Advanced#addDelayedData(java.lang.String, com.itextpdf.text.Chunk)
* @see VectorPrintDocument
*/
@Override
public final void onGenericTag(PdfWriter writer, Document document, final Rectangle rect, String genericTag) {
// if (log.isLoggable(Level.FINE)) {
// Collection av = doOnGenericTag.get(genericTag);
// String data = null;
// if (av!=null) {
// for (Advanced a : av) {
// data += a.getDelayed(genericTag).getDataPart();
// break;
// }
// }
// System.out.println("wrapped: " + carriageReturns.toString() + ", " + genericTag + " " + data + " " + rect.toString() + ", x=" + rect.getLeft());
// }
if (doOnGenericTag.get(genericTag) != null
&& !genericTag.startsWith(VectorPrintDocument.DRAWNEAR)
&& !genericTag.startsWith(VectorPrintDocument.DRAWSHADOW)) {
int i = -1;
for (Advanced a : doOnGenericTag.get(genericTag)) {
++i;
if (genericTag.startsWith(DefaultElementProducer.ADV)
&& Integer.parseInt(genericTag.replace(DefaultElementProducer.ADV, "")) > maxTagForGenericTagOnPage) {
continue;
}
try {
if (a.shouldDraw(a.getDelayed(genericTag).getData())) {
if (a instanceof DebugStyler && imageChunks.containsKey(genericTag)) {
Chunk wrapper = imageChunks.get(genericTag);
Object[] atts = (Object[]) wrapper.getAttributes().get(Chunk.IMAGE);
Rectangle shifted = new Rectangle(rect);
shifted.setLeft(shifted.getLeft() + (Float) atts[1]);
shifted.setRight(shifted.getRight() + (Float) atts[1]);
shifted.setTop(shifted.getTop() + (Float) atts[2]);
shifted.setBottom(shifted.getBottom() + (Float) atts[2]);
a.draw(shifted, genericTag);
} else if (!genericTag.startsWith(VectorPrintDocument.IMG_DEBUG)) {
a.draw(rect, genericTag);
}
}
} catch (VectorPrintException ex) {
throw new VectorPrintRuntimeException(ex);
}
}
}
// images
if (genericTag.startsWith(VectorPrintDocument.IMG_DEBUG) && getSettings().getBooleanProperty(false, DEBUG)) {
// only now we can define a goto action, we know the position of the image
if (rectangles.containsKey(genericTag)) {
Rectangle rectangle = imageRectFromChunk(genericTag, rect);
DebugHelper.debugAnnotation(rectangle,
genericTag.replaceFirst(VectorPrintDocument.IMG_DEBUG, ""), writer);
} else {
DebugHelper.debugAnnotation(rect, genericTag.replaceFirst(VectorPrintDocument.IMG_DEBUG, ""), writer);
}
}
if (genericTag.startsWith(VectorPrintDocument.DRAWNEAR)) {
Rectangle rectangle = imageRectFromChunk(genericTag, rect);
com.vectorprint.report.itext.style.stylers.Image image = (com.vectorprint.report.itext.style.stylers.Image) doOnGenericTag.get(genericTag).iterator().next();
short i = -1;
for (Advanced a : doOnGenericTag.get(genericTag)) {
try {
if (++i > 0 && a.shouldDraw(a.getDelayed(genericTag).getData())) {
if (getSettings().getBooleanProperty(false, DEBUG)) {
DebugHelper.styleLink(writer.getDirectContent(), a.getStyleClass(), "draw near", rectangle.getLeft(), rectangle.getTop(), getSettings(), elementProducer);
}
a.draw(rectangle, genericTag);
}
} catch (VectorPrintException ex) {
throw new VectorPrintRuntimeException(ex);
}
}
}
if (genericTag.startsWith(VectorPrintDocument.DRAWSHADOW)) {
// we know the position of the image
Rectangle r = imageRectFromChunk(genericTag, rect);
com.vectorprint.report.itext.style.stylers.Image image = (com.vectorprint.report.itext.style.stylers.Image) doOnGenericTag.get(genericTag).iterator().next();
try {
image.drawShadow(r.getLeft(), r.getBottom(), r.getWidth(), r.getHeight(),genericTag.replaceFirst(VectorPrintDocument.DRAWSHADOW, ""));
} catch (VectorPrintException ex) {
throw new VectorPrintRuntimeException(ex);
}
}
}
private Rectangle imageRectFromChunk(String genericTag, Rectangle rect) {
Image r = rectangles.get(genericTag);
return new Rectangle(rect.getLeft(),
rect.getTop() - r.getScaledHeight() + Y_POSITION_FIX,
rect.getLeft() + r.getScaledWidth(),
rect.getTop() + Y_POSITION_FIX);
}
@Setting(keys = "yPositionImageFix")
private Integer Y_POSITION_FIX = 2;
@Override
public EnhancedMap getSettings() {
return stylerFactory.getSettings();
}
public boolean isFailuresHereAfter() {
return failuresHereAfter;
}
public void setFailuresHereAfter(boolean failuresHereAfter) {
this.failuresHereAfter = failuresHereAfter;
}
public boolean isDebugHereAfter() {
return debugHereAfter;
}
public void setDebugHereAfter(boolean debugHereAfter) {
this.debugHereAfter = debugHereAfter;
}
public int getLastPage() {
return lastPage;
}
public void setLastPage(int lastPage) {
this.lastPage = lastPage;
}
@Override
public List getStylers(String... styleClasses) throws VectorPrintException {
return stylerFactory.getStylers(styleClasses);
}
@Override
public DocumentStyler getDocumentStyler() throws VectorPrintException {
return stylerFactory.getDocumentStyler();
}
@Override
public Map getStylerSetup() {
return stylerFactory.getStylerSetup();
}
@Override
public void setImageLoader(ImageLoader imageLoader) {
}
public void addStylerForEachPage(Advanced advanced) {
doForAllPages.add(advanced);
}
/**
* add a styler that will do its styling in {@link #onGenericTag(com.itextpdf.text.pdf.PdfWriter, com.itextpdf.text.Document, com.itextpdf.text.Rectangle, java.lang.String)
* }.
*
* @param tag
* @param advanced
* @param chunk used when debugging, for placing debug info at the right position in the pdf
* @see Chunk#Chunk(com.itextpdf.text.Image, float, float, boolean)
*/
public void addDelayedStyler(String tag, Collection advanced, Chunk chunk) {
addDelayedStyler(tag, advanced, chunk, null);
}
/**
* add a styler that will do its styling in
* {@link #onGenericTag(com.itextpdf.text.pdf.PdfWriter, com.itextpdf.text.Document, com.itextpdf.text.Rectangle, java.lang.String)}.
*
* @param tag
* @param advanced
* @param chunk used when debugging, for placing debug info at the right position in the pdf
* @param img the value of rect
* @see Chunk#Chunk(com.itextpdf.text.Image, float, float, boolean)
*/
public void addDelayedStyler(String tag, Collection advanced, Chunk chunk, Image img) {
doOnGenericTag.put(tag, advanced);
if (chunk != null && chunk.getImage() != null) {
imageChunks.put(tag, chunk);
}
if (img != null) {
rectangles.put(tag, img);
}
}
@Override
public void setLayerManager(LayerManager layerManager) {
}
@Override
public List getBaseStylersFromCache(String... styleClasses) throws VectorPrintException {
return stylerFactory.getBaseStylersFromCache(styleClasses);
}
@Override
public void setDocument(Document document, PdfWriter writer) {
}
@Override
public Document getDocument() {
return stylerFactory.getDocument();
}
@Override
public PdfWriter getWriter() {
return stylerFactory.getWriter();
}
@Override
public LayerManager getLayerManager() {
return stylerFactory.getLayerManager();
}
}