最近想用swing写一个简单的桌面端程序，其中仪表盘需要用到饼状图，于是参考JFree的官方示例代码自己整了一个（其实就是cv大法），最终代码如下：
@ItemView(value = "仪表盘", order = 101, category = GroupConstants.DASHBOARD, description = "仪表盘")
@Component
@Lazy
public class DashboardView extends AbstractMigView {
@Override
protected MigLayout defineMigLayout() {
return new MigLayout("wrap 1", "[grow]", "[grow]");
}
@Override
protected void render() {
Base3DPanel content = new Base3DPanel(new BorderLayout());
PieDataset3D<String> dataset = createDataset();
final Chart3D chart = createChart(dataset);
Chart3DPanel chartPanel = new Chart3DPanel(chart);
chartPanel.setMargin(0.15);
content.setChartPanel(chartPanel);
content.add(new DisplayPanel3D(chartPanel));
JButton button = new JButton("Change the Data");
button.addActionListener(e -> {
PieDataset3D<String> dataset1 = createDataset();
PiePlot3D plot = (PiePlot3D) chart.getPlot();
plot.setDataset(dataset1);
});
content.add(button, BorderLayout.SOUTH);
view.add(content, "grow");
}
private static PieDataset3D<String> createDataset() {
StandardPieDataset3D<String> dataset = new StandardPieDataset3D<>();
dataset.add("United States", Math.random() * 30);
dataset.add("France", Math.random() * 20);
dataset.add("New Zealand", Math.random() * 12);
dataset.add("United Kingdom", Math.random() * 43);
dataset.add("Australia", Math.random() * 43);
dataset.add("Canada", Math.random() * 43);
return dataset;
}
private static Chart3D createChart(PieDataset3D<String> dataset) {
final Chart3D chart = Chart3DFactory.createPieChart("Orson Charts 3D",
"For more info see: https://github.com/jfree/orson-charts/",
dataset);
chart.setTitleAnchor(TitleAnchor.TOP_LEFT);
PiePlot3D plot = (PiePlot3D) chart.getPlot();
plot.setLegendLabelGenerator(new StandardPieLabelGenerator(StandardPieLabelGenerator.PERCENT_TEMPLATE));
plot.setSectionLabelGenerator(new StandardPieLabelGenerator(StandardPieLabelGenerator.PERCENT_TEMPLATE));
plot.setSectionColors(Colors.createFancyLightColors());
return chart;
}
}
运行效果：
看起来还是肥肠补错的哈，但随之而来我就发现一个严重的问题，这不是一个普通的饼状图，用一般的手段没法让它渲染中文，不管我咋折腾运行出来都是乱码。在用AI辅佐建了好几个工具类，自定义了好几个panel后，最终还是以无可奈何告终。无奈只能自己翻翻源码看看能不能找到出路了，于是我点开这个饼状图的实现一顿检索，终于在我一通王八拳后还是让我找到了一点蛛丝马迹，在Chart3D中提供了一个方法setStyle方法，这个方法需要一个ChartStyle参数，刚好在这个ChartStyle中就定义了一众设置各个地方字体的方法，那就试试吧，于是将上述createChart方法修改成这样：
private static Chart3D createChart(PieDataset3D<String> dataset) {
// 宋体
Font simSun = new Font("SimSun", 10, 12);
final Chart3D chart = Chart3DFactory.createPieChart(
"系统资源使用情况（实时监控）",
"数据更新时间: " + java.time.LocalTime.now().format(java.time.format.DateTimeFormatter.ofPattern("HH:mm:ss")),
dataset
);
StandardChartStyle standardChartStyle = new StandardChartStyle();
standardChartStyle.setTitleFont(simSun);
standardChartStyle.setSubtitleFont(simSun);
standardChartStyle.setSectionLabelFont(simSun);
standardChartStyle.setAxisLabelFont(simSun);
standardChartStyle.setAxisTickLabelFont(simSun);
standardChartStyle.setLegendHeaderFont(simSun);
standardChartStyle.setLegendItemFont(simSun);
standardChartStyle.setLegendFooterFont(simSun);
standardChartStyle.setMarkerLabelFont(simSun);
chart.setStyle(standardChartStyle);
chart.setTitleAnchor(TitleAnchor.TOP_LEFT);
PiePlot3D plot = (PiePlot3D) chart.getPlot();
plot.setLegendLabelGenerator(new StandardPieLabelGenerator(StandardPieLabelGenerator.PERCENT_TEMPLATE));
plot.setSectionLabelGenerator(new StandardPieLabelGenerator(StandardPieLabelGenerator.PERCENT_TEMPLATE));
plot.setSectionColors(Colors.createFancyLightColors());
return chart;
}
最终运行效果如下：
完美解决，撒花ヾ(≧▽≦*)o
