Java tutorial
/* * Copyright (c) 2009, SQL Power Group Inc. * * This file is part of Wabit. * * Wabit is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * Wabit 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, see <http://www.gnu.org/licenses/>. */ package ca.sqlpower.wabit.swingui.chart.effect; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.CategoryPlot; import org.jfree.data.category.DefaultCategoryDataset; import ca.sqlpower.wabit.swingui.chart.effect.interp.BallDropInterpolator; import ca.sqlpower.wabit.swingui.chart.effect.interp.Interpolator; public class BarChartAnimatorFactory extends AbstractChartAnimatorFactory { private final Interpolator interpolator = new BallDropInterpolator();//new LinearInterpolator(); public boolean canAnimate(JFreeChart chart) { if (!(chart.getPlot() instanceof CategoryPlot)) { return false; } CategoryPlot cplot = chart.getCategoryPlot(); if (cplot.getDatasetCount() != 1) { return false; } if (!(cplot.getDataset() instanceof DefaultCategoryDataset)) { return false; } return true; } public ChartAnimator createAnimator(JFreeChart chart) throws CantAnimateException { DefaultCategoryDataset dataset; if (chart.getCategoryPlot().getDataset() instanceof DefaultCategoryDataset) { dataset = (DefaultCategoryDataset) chart.getCategoryPlot().getDataset(); } else { throw new CantAnimateException("Unsupported dataset type " + chart.getCategoryPlot().getDataset()); } chart.getCategoryPlot().getRangeAxis().setAutoRange(false); return new BarChartAnimator(getFrameCount(), getFrameDelay(), dataset, interpolator); } }