Java tutorial
/****************************************************************************** * Copyright (C) 2008 Low Heng Sin * * Copyright (C) 2008 Idalica Corporation * * This program is free software; you can redistribute it and/or modify it * * under the terms version 2 of the GNU General Public License as published * * by the Free Software Foundation. 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 General Public License along * * with this program; if not, write to the Free Software Foundation, Inc., * * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. * *****************************************************************************/ package org.adempiere.webui.apps.graph; import java.awt.BasicStroke; import java.awt.Color; import java.awt.Font; import java.awt.image.BufferedImage; import java.text.DecimalFormat; import org.adempiere.webui.component.Panel; import org.compiere.model.MColorSchema; import org.compiere.model.MGoal; import org.compiere.util.DisplayType; import org.compiere.util.Env; import org.compiere.util.Msg; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.encoders.EncoderUtil; import org.jfree.chart.encoders.ImageFormat; import org.jfree.chart.plot.DialShape; import org.jfree.chart.plot.MeterInterval; import org.jfree.chart.plot.MeterPlot; import org.jfree.data.Range; import org.jfree.data.general.DefaultValueDataset; import org.jfree.ui.RectangleInsets; import org.zkoss.image.AImage; import org.zkoss.zk.ui.event.Event; import org.zkoss.zk.ui.event.EventListener; import org.zkoss.zk.ui.event.Events; import org.zkoss.zul.Image; import org.zkoss.zul.Menuitem; import org.zkoss.zul.Menupopup; /** * Performance Indicator * * @author hengsin */ public class WPerformanceIndicator extends Panel implements EventListener { /** * */ private static final long serialVersionUID = 3580494126343850939L; /** * Constructor * @param goal goal model */ public WPerformanceIndicator(MGoal goal) { super(); m_goal = goal; init(); mRefresh.addEventListener(Events.ON_CLICK, this); popupMenu.appendChild(mRefresh); addEventListener(Events.ON_DOUBLE_CLICK, this); addEventListener(Events.ON_CLICK, this); } // PerformanceIndicator private MGoal m_goal = null; /** The Performance Name */ private String m_text = null; /** Performance Line */ /** Integer Number Format */ private static DecimalFormat s_format = DisplayType.getNumberFormat(DisplayType.Integer); Menupopup popupMenu = new Menupopup(); private Menuitem mRefresh = new Menuitem(Msg.getMsg(Env.getCtx(), "Refresh"), "/images/Refresh16.png"); ChartPanel chartPanel; /** * Get Goal * @return goal */ public MGoal getGoal() { return m_goal; } // getGoal private JFreeChart createChart() { JFreeChart chart = null; // Set Text StringBuffer text = new StringBuffer(m_goal.getName()); if (m_goal.isTarget()) text.append(": ").append(m_goal.getPercent()).append("%"); else text.append(": ").append(s_format.format(m_goal.getMeasureActual())); m_text = text.toString(); // ToolTip text = new StringBuffer(); if (m_goal.getDescription() != null) text.append(m_goal.getDescription()).append(": "); text.append(s_format.format(m_goal.getMeasureActual())); if (m_goal.isTarget()) text.append(" ").append(Msg.getMsg(Env.getCtx(), "of")).append(" ") .append(s_format.format(m_goal.getMeasureTarget())); setTooltiptext(text.toString()); // DefaultValueDataset data = new DefaultValueDataset((float) m_goal.getPercent()); MeterPlot plot = new MeterPlot(data); MColorSchema colorSchema = m_goal.getColorSchema(); int rangeLo = 0; int rangeHi = 0; for (int i = 1; i <= 4; i++) { switch (i) { case 1: rangeHi = colorSchema.getMark1Percent(); break; case 2: rangeHi = colorSchema.getMark2Percent(); break; case 3: rangeHi = colorSchema.getMark3Percent(); break; case 4: rangeHi = colorSchema.getMark4Percent(); break; } if (rangeHi == 9999) rangeHi = (int) Math.floor(rangeLo * 1.5); if (rangeLo < rangeHi) { plot.addInterval(new MeterInterval("Normal", //label new Range(rangeLo, rangeHi), //range colorSchema.getColor(rangeHi), new BasicStroke(7.0f), new Color(-13091716))); rangeLo = rangeHi; } } plot.setRange(new Range(0, rangeLo)); plot.setDialBackgroundPaint(new Color(-13091716)); plot.setUnits(""); plot.setDialShape(DialShape.CHORD);//CIRCLE); plot.setNeedlePaint(Color.white); plot.setTickSize(2000); plot.setTickLabelFont(new Font("SansSerif", Font.BOLD, 8)); plot.setValueFont(new Font("SansSerif", Font.BOLD, 8)); plot.setNoDataMessageFont(new Font("SansSerif", Font.BOLD, 8)); plot.setTickLabelPaint(Color.white); plot.setInsets(new RectangleInsets(1.0, 2.0, 3.0, 4.0)); chart = new JFreeChart(m_text, new Font("SansSerif", Font.BOLD, 9), plot, false); return chart; } /** * Init Graph Display * Kinamo (pelgrim) */ private void init() { JFreeChart chart = createChart(); chart.setBackgroundPaint(Color.WHITE); chart.setBorderVisible(true); chart.setBorderPaint(Color.LIGHT_GRAY); chart.setAntiAlias(true); BufferedImage bi = chart.createBufferedImage(200, 120, BufferedImage.TRANSLUCENT, null); try { byte[] bytes = EncoderUtil.encode(bi, ImageFormat.PNG, true); AImage image = new AImage("", bytes); Image myImage = new Image(); myImage.setContent(image); appendChild(myImage); } catch (Exception e) { // TODO: handle exception } invalidate(); } /** * Update Display Data */ protected void updateDisplay() { chartPanel.setChart(createChart()); invalidate(); } // updateData public void onEvent(Event event) throws Exception { } }