Java tutorial
/* Copyright 2008-2011 Gephi Authors : Mathieu Bastian Website : http://www.gephi.org This file is part of Gephi. DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. Copyright 2011 Gephi Consortium. All rights reserved. The contents of this file are subject to the terms of either the GNU General Public License Version 3 only ("GPL") or the Common Development and Distribution License("CDDL") (collectively, the "License"). You may not use this file except in compliance with the License. You can obtain a copy of the License at http://gephi.org/about/legal/license-notice/ or /cddl-1.0.txt and /gpl-3.0.txt. See the License for the specific language governing permissions and limitations under the License. When distributing the software, include this License Header Notice in each file and include the License files at /cddl-1.0.txt and /gpl-3.0.txt. 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Contributor(s): Portions Copyrighted 2011 Gephi Consortium. */ package org.gephi.desktop.timeline; import java.awt.Point; import java.math.RoundingMode; import java.text.DecimalFormat; import java.util.Timer; import java.util.TimerTask; import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.ReentrantLock; import javax.swing.JComponent; import org.gephi.dynamic.api.DynamicModel.TimeFormat; import org.gephi.timeline.api.TimelineChart; import org.gephi.timeline.api.TimelineModel; import org.gephi.ui.components.richtooltip.RichTooltip; import org.joda.time.DateTime; import org.joda.time.format.DateTimeFormatter; import org.joda.time.format.ISODateTimeFormat; import org.openide.util.ImageUtilities; import org.openide.util.NbBundle; /** * * @author Mathieu Bastian */ public class TimelineTooltip { private static final int DELAY = 500; private TimelineModel model; private String position; private String min; private String max; private String y; private Timer timer; private RichTooltip tooltip; private Lock lock = new ReentrantLock(); public void setModel(TimelineModel model) { this.model = model; } public void start(final double currentPosition, final Point mousePosition, final JComponent component) { stop(); if (model == null) { return; } timer = new Timer(); timer.schedule(new TimerTask() { @Override public void run() { lock.lock(); try { if (tooltip != null) { tooltip.hideTooltip(); } buildData(currentPosition); tooltip = buildTooltip(); tooltip.showTooltip(component, mousePosition); } finally { lock.unlock(); } } }, TimelineTooltip.DELAY); } public void stop() { if (timer != null) { timer.cancel(); } lock.lock(); try { if (tooltip != null) { tooltip.hideTooltip(); } } finally { lock.unlock(); } timer = null; tooltip = null; } private void buildData(double currentPosition) { if (model.getTimeFormat().equals(TimeFormat.DOUBLE)) { int exponentMin = (int) Math.round(Math.log10(model.getCustomMin())); DecimalFormat decimalFormat = new DecimalFormat(); decimalFormat.setRoundingMode(RoundingMode.HALF_EVEN); if (exponentMin > 0) { min = String.valueOf(model.getCustomMin()); max = String.valueOf(model.getCustomMax()); position = String.valueOf(currentPosition); } else { decimalFormat.setMaximumFractionDigits(Math.abs(exponentMin) + 2); min = decimalFormat.format(model.getCustomMin()); max = decimalFormat.format(model.getCustomMax()); position = decimalFormat.format(currentPosition); } } else if (model.getTimeFormat().equals(TimeFormat.DATE)) { DateTime minDate = new DateTime((long) model.getCustomMin()); DateTime maxDate = new DateTime((long) model.getCustomMax()); DateTime posDate = new DateTime((long) currentPosition); DateTimeFormatter formatter = ISODateTimeFormat.date(); min = formatter.print(minDate); max = formatter.print(maxDate); position = formatter.print(posDate); } else { DateTime minDate = new DateTime((long) model.getCustomMin()); DateTime maxDate = new DateTime((long) model.getCustomMax()); DateTime posDate = new DateTime((long) currentPosition); DateTimeFormatter formatter = ISODateTimeFormat.dateTime(); min = formatter.print(minDate); max = formatter.print(maxDate); position = formatter.print(posDate); } if (model.getChart() != null) { TimelineChart chart = model.getChart(); Number yNumber = chart.getY(currentPosition); y = yNumber != null ? yNumber.toString() : null; } else { y = null; } } private RichTooltip buildTooltip() { RichTooltip richTooltip = new RichTooltip(); //Min richTooltip.addDescriptionSection( NbBundle.getMessage(TimelineTooltip.class, "TimelineTooltip.min") + ": " + getMin()); //Max richTooltip.addDescriptionSection( NbBundle.getMessage(TimelineTooltip.class, "TimelineTooltip.max") + ": " + getMax()); //Title richTooltip.setTitle( NbBundle.getMessage(TimelineTooltip.class, "TimelineTooltip.position") + ": " + getPosition()); //Img richTooltip.setMainImage(ImageUtilities.loadImage("org/gephi/desktop/timeline/resources/info.png")); //Chart if (getY() != null) { richTooltip.addFooterSection(model.getChart().getColumn().getTitle()); richTooltip.addFooterSection( NbBundle.getMessage(TimelineTooltip.class, "TimelineTooltip.chart") + ": " + getY()); //Img richTooltip.setFooterImage(ImageUtilities.loadImage("org/gephi/desktop/timeline/resources/chart.png")); } return richTooltip; } public String getY() { return y; } public String getPosition() { return position; } public String getMin() { return min; } public String getMax() { return max; } }