将JFreeChart从Itext 5迁移到7 [英] Migrating JFreeChart from Itext 5 to 7
本文介绍了将JFreeChart从Itext 5迁移到7的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在将我的应用从Itext 5迁移到7，并且无法找到有关如何将JFreeChart添加到我的文档的任何内容。我问过那个论坛，但他们无能为力，所以他们把我送到了这里。这是我工作的Itext 5代码：
I am migrating my app from Itext 5 to 7 and cannot find anything on how to add a JFreeChart to my document. I asked on that forum but they could not help so they sent me here. Here is my working Itext 5 code:
PdfContentByte cb=writer.getDirectContent();
PdfTemplate tp=cb.createTemplate(sizeX*scale+1,sizeY*scale+1);
PdfGraphics2D g2d=new PdfGraphics2D(cb,sizeX*scale+1,sizeY*scale+1);
tp.setWidth(sizeX*scale+1);
tp.setHeight(sizeY*scale+1);
Chart.getInstance().getChart().draw(g2d, new java.awt.geom.Rectangle2D.Float(0,0,sizeX*scale,sizeY*scale));
g2d.dispose();
cb.add(tp);
有人可以帮我创建等效的itext 7吗？ TIA。
Can someone help me create the itext 7 equivalent? TIA.
推荐答案
据我所知，iText放弃了PdfGraphics2D类。您可以尝试的一种方法是使用 OrsonPDF 获取 PDFGraphics2D 实现（它将创建图表的PDF版本），然后将其嵌入由iText创建的PDF中。我在这里写了一篇博客文章：
As I understand it, iText has dropped the PdfGraphics2D class. One approach you could try is to used OrsonPDF for the PDFGraphics2D implementation (it will create a PDF version of your chart), then embed that in your PDF created by iText. I wrote a blog post about that here:
https ：//jfree.github.io/orsonpdf/
这是源代码（需要JFreeChart 1.5.0，OrsonPDF 1.7或更高版本，以及iText 7 - 我使用7.0.4）：
Here is the source code (needs JFreeChart 1.5.0, OrsonPDF 1.7 or later, and iText 7 - I used 7.0.4):
package com.orsonpdf.demo;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.Rectangle;
import java.io.ByteArrayInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfReader;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.kernel.pdf.xobject.PdfFormXObject;
import com.itextpdf.layout.Document;
import com.itextpdf.layout.element.Image;
import com.itextpdf.layout.element.Paragraph;
import com.orsonpdf.PDFDocument;
import com.orsonpdf.PDFGraphics2D;
import com.orsonpdf.Page;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.block.BlockBorder;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.chart.title.TextTitle;
import org.jfree.chart.ui.HorizontalAlignment;
import org.jfree.data.time.Month;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.data.xy.XYDataset;
/**
* Creates a PDF document with iText, then inserts a PDF chart generated with
* JFreeChart and OrsonPDF.
*/
public class ITextPDFWithChart {
private static byte[] generateChartPDF() {
// here we use OrsonPDF to generate PDF in a byte array
PDFDocument doc = new PDFDocument();
Rectangle bounds = new Rectangle(500, 335);
Page page = doc.createPage(bounds);
PDFGraphics2D g2 = page.getGraphics2D();
JFreeChart chart = createChart(createDataset());
chart.draw(g2, bounds);
return doc.getPDFBytes();
}
/**
* Creates a chart.
*
* @param dataset a dataset.
*
* @return A chart.
*/
private static JFreeChart createChart(XYDataset dataset) {
JFreeChart chart = ChartFactory.createTimeSeriesChart(
"International Coffee Organisation : Coffee Prices",
null, "US cents/lb", dataset);
String fontName = "Serif";
chart.getTitle().setFont(new Font(fontName, Font.BOLD, 18));
chart.addSubtitle(new TextTitle(
"Source: http://www.ico.org/historical/2010-19/PDF/HIST-PRICES.pdf",
new Font(fontName, Font.PLAIN, 14)));
XYPlot plot = (XYPlot) chart.getPlot();
plot.setDomainPannable(true);
plot.setRangePannable(false);
plot.setDomainCrosshairVisible(true);
plot.setRangeCrosshairVisible(true);
plot.getDomainAxis().setLowerMargin(0.0);
plot.getDomainAxis().setLabelFont(new Font(fontName, Font.BOLD, 14));
plot.getDomainAxis().setTickLabelFont(new Font(fontName, Font.PLAIN, 10));
plot.getRangeAxis().setLabelFont(new Font(fontName, Font.BOLD, 14));
plot.getRangeAxis().setTickLabelFont(new Font(fontName, Font.PLAIN, 10));
plot.setRangeGridlinePaint(Color.GRAY);
plot.setDomainGridlinePaint(Color.GRAY);
chart.getLegend().setItemFont(new Font(fontName, Font.PLAIN, 14));
chart.getLegend().setFrame(BlockBorder.NONE);
chart.getLegend().setHorizontalAlignment(HorizontalAlignment.CENTER);
XYItemRenderer r = plot.getRenderer();
if (r instanceof XYLineAndShapeRenderer) {
XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) r;
renderer.setDefaultShapesVisible(false);
renderer.setDrawSeriesLineAsPath(true);
// set the default stroke for all series
renderer.setAutoPopulateSeriesStroke(false);
renderer.setDefaultStroke(new BasicStroke(3.0f,
BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL), false);
renderer.setSeriesPaint(0, Color.RED);
renderer.setSeriesPaint(1, new Color(24, 123, 58));
renderer.setSeriesPaint(2, new Color(149, 201, 136));
renderer.setSeriesPaint(3, new Color(1, 62, 29));
renderer.setSeriesPaint(4, new Color(81, 176, 86));
renderer.setSeriesPaint(5, new Color(0, 55, 122));
renderer.setSeriesPaint(6, new Color(0, 92, 165));
}
return chart;
}
/**
* Creates a dataset, consisting of two series of monthly data.
*
* @return the dataset.
*/
private static XYDataset createDataset() {
TimeSeries s1 = new TimeSeries("Indicator Price");
s1.add(new Month(1, 2010), 126.80);
s1.add(new Month(2, 2010), 123.37);
s1.add(new Month(3, 2010), 125.30);
s1.add(new Month(4, 2010), 126.89);
s1.add(new Month(5, 2010), 128.10);
s1.add(new Month(6, 2010), 142.20);
s1.add(new Month(7, 2010), 153.41);
s1.add(new Month(8, 2010), 157.46);
s1.add(new Month(9, 2010), 163.61);
s1.add(new Month(10, 2010), 161.56);
s1.add(new Month(11, 2010), 173.90);
s1.add(new Month(12, 2010), 184.26);
s1.add(new Month(1, 2011), 197.35);
s1.add(new Month(2, 2011), 216.03);
s1.add(new Month(3, 2011), 224.33);
s1.add(new Month(4, 2011), 231.24);
s1.add(new Month(5, 2011), 227.97);
s1.add(new Month(6, 2011), 215.58);
s1.add(new Month(7, 2011), 210.36);
s1.add(new Month(8, 2011), 212.19);
s1.add(new Month(9, 2011), 213.04);
s1.add(new Month(10, 2011), 193.90);
s1.add(new Month(11, 2011), 193.66);
s1.add(new Month(12, 2011), 189.02);
s1.add(new Month(1, 2012), 188.90);
s1.add(new Month(2, 2012), 182.29);
s1.add(new Month(3, 2012), 167.77);
s1.add(new Month(4, 2012), 160.46);
s1.add(new Month(5, 2012), 157.68);
s1.add(new Month(6, 2012), 145.31);
s1.add(new Month(7, 2012), 159.07);
s1.add(new Month(8, 2012), 148.50);
s1.add(new Month(9, 2012), 151.28);
s1.add(new Month(10, 2012), 147.12);
s1.add(new Month(11, 2012), 136.35);
s1.add(new Month(12, 2012), 131.31);
s1.add(new Month(1, 2013), 135.38);
s1.add(new Month(2, 2013), 131.51);
s1.add(new Month(3, 2013), 131.38);
TimeSeries s2 = new TimeSeries("Columbian Milds");
s2.add(new Month(1, 2010), 207.51);
s2.add(new Month(2, 2010), 204.71);
s2.add(new Month(3, 2010), 205.71);
s2.add(new Month(4, 2010), 200.00);
s2.add(new Month(5, 2010), 200.54);
s2.add(new Month(6, 2010), 224.49);
s2.add(new Month(7, 2010), 235.52);
s2.add(new Month(8, 2010), 243.98);
s2.add(new Month(9, 2010), 247.77);
s2.add(new Month(10, 2010), 230.02);
s2.add(new Month(11, 2010), 244.02);
s2.add(new Month(12, 2010), 261.97);
s2.add(new Month(1, 2011), 279.88);
s2.add(new Month(2, 2011), 296.44);
s2.add(new Month(3, 2011), 300.68);
s2.add(new Month(4, 2011), 312.95);
s2.add(new Month(5, 2011), 302.17);
s2.add(new Month(6, 2011), 287.95);
s2.add(new Month(7, 2011), 285.21);
s2.add(new Month(8, 2011), 286.97);
s2.add(new Month(9, 2011), 287.54);
s2.add(new Month(10, 2011), 257.66);
s2.add(new Month(11, 2011), 256.99);
s2.add(new Month(12, 2011), 251.60);
s2.add(new Month(1, 2012), 255.91);
s2.add(new Month(2, 2012), 244.14);
s2.add(new Month(3, 2012), 222.84);
s2.add(new Month(4, 2012), 214.46);
s2.add(new Month(5, 2012), 207.32);
s2.add(new Month(6, 2012), 184.67);
s2.add(new Month(7, 2012), 202.56);
s2.add(new Month(8, 2012), 187.14);
s2.add(new Month(9, 2012), 190.10);
s2.add(new Month(10, 2012), 181.39);
s2.add(new Month(11, 2012), 170.08);
s2.add(new Month(12, 2012), 164.40);
s2.add(new Month(1, 2013), 169.19);
s2.add(new Month(2, 2013), 161.70);
s2.add(new Month(3, 2013), 161.53);
TimeSeries s3 = new TimeSeries("Other Milds");
s3.add(new Month(1, 2010), 158.90);
s3.add(new Month(2, 2010), 157.86);
s3.add(new Month(3, 2010), 164.50);
s3.add(new Month(4, 2010), 169.55);
s3.add(new Month(5, 2010), 173.38);
s3.add(new Month(6, 2010), 190.90);
s3.add(new Month(7, 2010), 203.21);
s3.add(new Month(8, 2010), 211.59);
s3.add(new Month(9, 2010), 222.71);
s3.add(new Month(10, 2010), 217.64);
s3.add(new Month(11, 2010), 233.48);
s3.add(new Month(12, 2010), 248.17);
s3.add(new Month(1, 2011), 263.77);
s3.add(new Month(2, 2011), 287.89);
s3.add(new Month(3, 2011), 292.07);
s3.add(new Month(4, 2011), 300.12);
s3.add(new Month(5, 2011), 291.09);
s3.add(new Month(6, 2011), 274.98);
s3.add(new Month(7, 2011), 268.02);
s3.add(new Month(8, 2011), 270.44);
s3.add(new Month(9, 2011), 274.88);
s3.add(new Month(10, 2011), 247.82);
s3.add(new Month(11, 2011), 245.09);
s3.add(new Month(12, 2011), 236.71);
s3.add(new Month(1, 2012), 237.21);
s3.add(new Month(2, 2012), 224.16);
s3.add(new Month(3, 2012), 201.26);
s3.add(new Month(4, 2012), 191.45);
s3.add(new Month(5, 2012), 184.65);
s3.add(new Month(6, 2012), 168.69);
s3.add(new Month(7, 2012), 190.45);
s3.add(new Month(8, 2012), 174.82);
s3.add(new Month(9, 2012), 178.98);
s3.add(new Month(10, 2012), 173.32);
s3.add(new Month(11, 2012), 159.91);
s3.add(new Month(12, 2012), 152.74);
s3.add(new Month(1, 2013), 157.29);
s3.add(new Month(2, 2013), 149.46);
s3.add(new Month(3, 2013), 149.78);
TimeSeries s4 = new TimeSeries("Brazilian Naturals");
s4.add(new Month(1, 2010), 131.67);
s4.add(new Month(2, 2010), 124.57);
s4.add(new Month(3, 2010), 126.21);
s4.add(new Month(4, 2010), 126.07);
s4.add(new Month(5, 2010), 127.45);
s4.add(new Month(6, 2010), 143.20);
s4.add(new Month(7, 2010), 156.87);
s4.add(new Month(8, 2010), 163.21);
s4.add(new Month(9, 2010), 175.15);
s4.add(new Month(10, 2010), 175.38);
s4.add(new Month(11, 2010), 190.62);
s4.add(new Month(12, 2010), 204.25);
s4.add(new Month(1, 2011), 219.77);
s4.add(new Month(2, 2011), 247.00);
s4.add(new Month(3, 2011), 260.98);
s4.add(new Month(4, 2011), 273.40);
s4.add(new Month(5, 2011), 268.66);
s4.add(new Month(6, 2011), 250.59);
s4.add(new Month(7, 2011), 245.69);
s4.add(new Month(8, 2011), 249.83);
s4.add(new Month(9, 2011), 255.64);
s4.add(new Month(10, 2011), 234.28);
s4.add(new Month(11, 2011), 236.75);
s4.add(new Month(12, 2011), 228.79);
s4.add(new Month(1, 2012), 228.21);
s4.add(new Month(2, 2012), 215.40);
s4.add(new Month(3, 2012), 192.03);
s4.add(new Month(4, 2012), 180.90);
s4.add(new Month(5, 2012), 174.17);
s4.add(new Month(6, 2012), 156.17);
s4.add(new Month(7, 2012), 175.98);
s4.add(new Month(8, 2012), 160.05);
s4.add(new Month(9, 2012), 166.53);
s4.add(new Month(10, 2012), 161.20);
s4.add(new Month(11, 2012), 148.25);
s4.add(new Month(12, 2012), 140.69);
s4.add(new Month(1, 2013), 145.17);
s4.add(new Month(2, 2013), 136.63);
s4.add(new Month(3, 2013), 133.61);
TimeSeries s5 = new TimeSeries("Robustas");
s5.add(new Month(1, 2010), 69.92);
s5.add(new Month(2, 2010), 67.88);
s5.add(new Month(3, 2010), 67.25);
s5.add(new Month(4, 2010), 71.59);
s5.add(new Month(5, 2010), 70.70);
s5.add(new Month(6, 2010), 76.92);
s5.add(new Month(7, 2010), 85.27);
s5.add(new Month(8, 2010), 82.68);
s5.add(new Month(9, 2010), 81.28);
s5.add(new Month(10, 2010), 85.27);
s5.add(new Month(11, 2010), 92.04);
s5.add(new Month(12, 2010), 94.09);
s5.add(new Month(1, 2011), 101.09);
s5.add(new Month(2, 2011), 109.35);
s5.add(new Month(3, 2011), 118.13);
s5.add(new Month(4, 2011), 117.37);
s5.add(new Month(5, 2011), 121.98);
s5.add(new Month(6, 2011), 117.95);
s5.add(new Month(7, 2011), 112.73);
s5.add(new Month(8, 2011), 112.07);
s5.add(new Month(9, 2011), 106.06);
s5.add(new Month(10, 2011), 98.10);
s5.add(new Month(11, 2011), 97.24);
s5.add(new Month(12, 2011), 98.41);
s5.add(new Month(1, 2012), 96.72);
s5.add(new Month(2, 2012), 101.93);
s5.add(new Month(3, 2012), 103.57);
s5.add(new Month(4, 2012), 101.80);
s5.add(new Month(5, 2012), 106.88);
s5.add(new Month(6, 2012), 105.70);
s5.add(new Month(7, 2012), 107.06);
s5.add(new Month(8, 2012), 106.52);
s5.add(new Month(9, 2012), 104.95);
s5.add(new Month(10, 2012), 104.47);
s5.add(new Month(11, 2012), 97.67);
s5.add(new Month(12, 2012), 96.59);
s5.add(new Month(1, 2013), 99.69);
s5.add(new Month(2, 2013), 104.03);
s5.add(new Month(3, 2013), 106.26);
TimeSeries s6 = new TimeSeries("Futures (London)");
s6.add(new Month(1, 2010), 62.66);
s6.add(new Month(2, 2010), 60.37);
s6.add(new Month(3, 2010), 58.64);
s6.add(new Month(4, 2010), 62.21);
s6.add(new Month(5, 2010), 62.46);
s6.add(new Month(6, 2010), 69.72);
s6.add(new Month(7, 2010), 78.17);
s6.add(new Month(8, 2010), 78.42);
s6.add(new Month(9, 2010), 75.87);
s6.add(new Month(10, 2010), 80.08);
s6.add(new Month(11, 2010), 86.40);
s6.add(new Month(12, 2010), 88.70);
s6.add(new Month(1, 2011), 96.02);
s6.add(new Month(2, 2011), 104.53);
s6.add(new Month(3, 2011), 111.36);
s6.add(new Month(4, 2011), 111.34);
s6.add(new Month(5, 2011), 116.76);
s6.add(new Month(6, 2011), 110.51);
s6.add(new Month(7, 2011), 103.36);
s6.add(new Month(8, 2011), 102.71);
s6.add(new Month(9, 2011), 96.10);
s6.add(new Month(10, 2011), 88.64);
s6.add(new Month(11, 2011), 85.78);
s6.add(new Month(12, 2011), 87.65);
s6.add(new Month(1, 2012), 84.19);
s6.add(new Month(2, 2012), 88.69);
s6.add(new Month(3, 2012), 91.37);
s6.add(new Month(4, 2012), 91.81);
s6.add(new Month(5, 2012), 96.82);
s6.add(new Month(6, 2012), 94.75);
s6.add(new Month(7, 2012), 96.14);
s6.add(new Month(8, 2012), 96.12);
s6.add(new Month(9, 2012), 94.65);
s6.add(new Month(10, 2012), 94.66);
s6.add(new Month(11, 2012), 87.32);
s6.add(new Month(12, 2012), 85.94);
s6.add(new Month(1, 2013), 88.85);
s6.add(new Month(2, 2013), 94.41);
s6.add(new Month(3, 2013), 97.22);
TimeSeries s7 = new TimeSeries("Futures (New York)");
s7.add(new Month(1, 2010), 142.76);
s7.add(new Month(2, 2010), 134.35);
s7.add(new Month(3, 2010), 134.97);
s7.add(new Month(4, 2010), 135.12);
s7.add(new Month(5, 2010), 135.81);
s7.add(new Month(6, 2010), 152.36);
s7.add(new Month(7, 2010), 165.23);
s7.add(new Month(8, 2010), 175.10);
s7.add(new Month(9, 2010), 187.80);
s7.add(new Month(10, 2010), 190.43);
s7.add(new Month(11, 2010), 206.92);
s7.add(new Month(12, 2010), 221.51);
s7.add(new Month(1, 2011), 238.05);
s7.add(new Month(2, 2011), 261.41);
s7.add(new Month(3, 2011), 274.10);
s7.add(new Month(4, 2011), 285.58);
s7.add(new Month(5, 2011), 277.72);
s7.add(new Month(6, 2011), 262.52);
s7.add(new Month(7, 2011), 255.90);
s7.add(new Month(8, 2011), 260.39);
s7.add(new Month(9, 2011), 261.39);
s7.add(new Month(10, 2011), 236.74);
s7.add(new Month(11, 2011), 235.25);
s7.add(new Month(12, 2011), 227.23);
s7.add(new Month(1, 2012), 227.50);
s7.add(new Month(2, 2012), 212.09);
s7.add(new Month(3, 2012), 188.78);
s7.add(new Month(4, 2012), 181.75);
s7.add(new Month(5, 2012), 176.50);
s7.add(new Month(6, 2012), 159.93);
s7.add(new Month(7, 2012), 183.20);
s7.add(new Month(8, 2012), 169.77);
s7.add(new Month(9, 2012), 175.36);
s7.add(new Month(10, 2012), 170.43);
s7.add(new Month(11, 2012), 155.72);
s7.add(new Month(12, 2012), 149.58);
s7.add(new Month(1, 2013), 154.28);
s7.add(new Month(2, 2013), 144.89);
s7.add(new Month(3, 2013), 141.43);
TimeSeriesCollection dataset = new TimeSeriesCollection();
dataset.addSeries(s1);
dataset.addSeries(s2);
dataset.addSeries(s3);
dataset.addSeries(s4);
dataset.addSeries(s5);
dataset.addSeries(s6);
dataset.addSeries(s7);
return dataset;
}
public static void main(String[] args) throws FileNotFoundException, IOException {
PdfWriter writer = new PdfWriter("ITextPDFWithChart.pdf");
PdfDocument targetPDF = new PdfDocument(writer);
Document document = new Document(targetPDF);
document.add(new Paragraph("Demo showing a JFreeChart being rendered into a PDF document created by iText 7."));
PdfReader reader = new PdfReader(new ByteArrayInputStream(generateChartPDF()));
PdfDocument chartDoc = new PdfDocument(reader);
PdfFormXObject chart = chartDoc.getFirstPage().copyAsFormXObject(targetPDF);
Image chartImage = new Image(chart);
document.add(new Paragraph("Here we add a chart... ").add(chartImage));
document.close();
}
}
这篇关于将JFreeChart从Itext 5迁移到7的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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