java - 禁用 StackedXYAreaChart 中的系列 - jfreechart

Question

我正在尝试创建一个用户过滤器，该过滤器将根据用户点击启用/禁用一系列。我添加了一个复选框按钮，它将启用/禁用该系列。

当我单击按钮时，只有图例项消失。地 block 上的区域仍然可见。我的做法有错吗？或者这在 StackedXYAreaChart 中不可能吗？我做错了什么？

package test;   

import java.awt.BorderLayout;   
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;   
import org.jfree.chart.*;   
import org.jfree.chart.labels.StandardXYToolTipGenerator;   
import org.jfree.chart.plot.PlotOrientation;   
import org.jfree.chart.plot.XYPlot;   
import org.jfree.chart.renderer.xy.StackedXYAreaRenderer2;   
import org.jfree.data.xy.*;   

public class Test2   
{   

private static final long serialVersionUID = 1L;   

public Test2(String s)   
{     
    JFreeChart jfreechart = createChart(createDataset());  
    JPanel jpanel = new ChartPanel(jfreechart);   
    JPanel masterPanel = new JPanel(new BorderLayout());
    masterPanel.add(jpanel, BorderLayout.CENTER);
    masterPanel.add(addUserControls(jfreechart), BorderLayout.EAST);
    JFrame frame = new JFrame();
    frame.add(masterPanel);
    frame.pack();
    frame.setVisible(true);
}   

private static TableXYDataset createDataset()   
{   
    DefaultTableXYDataset defaulttablexydataset = new DefaultTableXYDataset();   
    XYSeries xyseries = new XYSeries("Series 1", true, false);   
    xyseries.add(5D, 5D);   
    xyseries.add(10D, 15.5D);   
    xyseries.add(15D, 9.5D);   
    xyseries.add(20D, 7.5D);   
    defaulttablexydataset.addSeries(xyseries);   
    XYSeries xyseries1 = new XYSeries("Series 2", true, false);   
    xyseries1.add(5D, 5D);   
    xyseries1.add(10D, 15.5D);   
    xyseries1.add(15D, 9.5D);   
    xyseries1.add(20D, 3.5D);   
    defaulttablexydataset.addSeries(xyseries1);   
    return defaulttablexydataset;   
}   

private static JFreeChart createChart(TableXYDataset tablexydataset)   
{   
    JFreeChart jfreechart = ChartFactory.createStackedXYAreaChart("Stacked XY Area Chart Demo 1", "X Value", "Y Value", tablexydataset, PlotOrientation.VERTICAL, true, true, false);   
    XYPlot xyplot = (XYPlot)jfreechart.getPlot();   
    StackedXYAreaRenderer2 stackedxyarearenderer2 = new StackedXYAreaRenderer2();   
    stackedxyarearenderer2.setToolTipGenerator(new StandardXYToolTipGenerator());   
    xyplot.setRenderer(0, stackedxyarearenderer2);   
    return jfreechart;   
}   

public static JPanel createDemoPanel()   
{   
    JFreeChart jfreechart = createChart(createDataset());   
    return new ChartPanel(jfreechart);   
}   

public static void main(String args[])   
{   
    Test2 stackedxyareachartdemo1 = new Test2("Stacked XY Area Chart Demo 1");   
}   

public JPanel addUserControls(JFreeChart chartPlot) {
    JPanel userPanel = new JPanel(new GridLayout(2,2));
    JCheckBox dataButton = new JCheckBox("Data");
    dataButton.setSelected(true);
    dataButton.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent event) {
            if (dataButton.isSelected()) {
            StackedXYAreaRenderer2 renderer = (StackedXYAreaRenderer2) chartPlot.getXYPlot().getRenderer();
            renderer.setSeriesVisible(0, Boolean.TRUE);
            } else {
                StackedXYAreaRenderer2 renderer = (StackedXYAreaRenderer2) chartPlot.getXYPlot().getRenderer();
                renderer.setSeriesVisible(0, Boolean.FALSE);
            }
        }
    });
    userPanel.add(dataButton);
    return userPanel;
}
}   

Answer 1

问题描述here对于StackedXYBarRenderer。

最简单的解决方案是重写默认渲染器的 drawItem() 方法以强制可见性:

public void drawItem(Graphics2D g2,
                     XYItemRendererState state,
                     Rectangle2D dataArea,
                     PlotRenderingInfo info,
                     XYPlot plot,
                     ValueAxis domainAxis,
                     ValueAxis rangeAxis,
                     XYDataset dataset,
                     int series,
                     int item,
                     CrosshairState crosshairState,
                     int pass) {
    if (!getItemVisible(series, item)) {
        return;
    }
    super.drawItem(g2, state, dataArea, info, plot, domainAxis, rangeAxis, dataset, series, item, crosshairState, pass);
}

但是，输出可能不是预期的:

上面的链接有更复杂的建议。