Java tutorial
/*----------------------------------------------------------------------------- ** ** -Gozer is not Zuul- ** ** Copyright 2017 by SwordLord - the coding crew - https://www.swordlord.com/ ** and individual authors ** ** 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/>. ** **----------------------------------------------------------------------------- ** ** $Id: GWPieChartPanel.java 1170 2011-10-07 16:24:10Z LordEidi $ ** -----------------------------------------------------------------------------*/ package com.swordlord.gozer.components.wicket.graph; import java.awt.Color; import java.text.MessageFormat; import java.util.List; import org.apache.wicket.ajax.AjaxRequestTarget; import org.apache.wicket.model.IModel; import org.jfree.chart.ChartFactory; import org.jfree.chart.JFreeChart; import org.jfree.chart.entity.ChartEntity; import org.jfree.chart.plot.PiePlot; import org.jfree.data.general.DefaultPieDataset; import com.swordlord.gozer.components.generic.graph.ChartImage; import com.swordlord.gozer.components.generic.graph.GPieChart; import com.swordlord.gozer.components.wicket.graph.common.GWChartPanel; import com.swordlord.gozer.databinding.DataBindingManager; import com.swordlord.gozer.databinding.DataBindingMember; import com.swordlord.jalapeno.datarow.DataRowBase; @SuppressWarnings("serial") public class GWPieChartPanel extends GWChartPanel { private int value; public GWPieChartPanel(String id, IModel<?> model, GPieChart child) { super(id, model); DataBindingMember dbMemberRowKey = child.getDataBindingMemberRowKey(); DataBindingMember dbMemberValue = child.getDataBindingMemberValue(); DataBindingManager dbManager = child.getDataBindingManager(); DefaultPieDataset dpd = new DefaultPieDataset(); List<DataRowBase> rowKeys = dbManager.getRows(dbMemberRowKey); List<DataRowBase> values = dbManager.getRows(dbMemberValue); String[] codes = new String[rowKeys.size()]; int[] results = new int[rowKeys.size()]; int i = 0; for (DataRowBase row : rowKeys) { codes[i] = row.getPropertyAsString(dbMemberRowKey.getDataBindingFieldName()); i++; } i = 0; for (DataRowBase row : values) { results[i] = row.getPropertyAsInt(dbMemberValue.getDataBindingFieldName()); i++; } for (Integer j = 0; j < rowKeys.size(); j++) { dpd.setValue(MessageFormat.format("{0}: {1}", codes[j], results[j]), results[j]); } JFreeChart chart = ChartFactory.createPieChart(child.getTitle(), dpd, child.getLegend(), false, false); chart.setBackgroundPaint(Color.white); PiePlot plot = (PiePlot) chart.getPlot(); plot.setDrawingSupplier(child.getDrawingSupplier()); ChartImage image = new ChartImage("chart", chart, child.getWidth(200), child.getHeight(200)); add(image); } public int getValue() { return value; } public void setValue(int value) { this.value = value; } @Override protected void onClickCallback(AjaxRequestTarget target, ChartEntity entity) { } }