在JFreeChart中监听缩放重置事件 [英] Listening for zoom reset event in JFreeChart

问题描述

如何收听JFreeChart的缩放重置事件?

How can I listen to JFreeChart's zoom reset event?

推荐答案

我是这样使用的:

ChartPanel DCP=new ChartPanel(DailyChart){
    @Override
    public void restoreAutoBounds(){
        super.restoreAutoDomainBounds();
        super.restoreAutoRangeBounds();

        XYPlot plot=(XYPlot)getChart().getPlot();

        Calendar Cal=Calendar.getInstance();
        String dayName=Cal.getDisplayName(Calendar.DAY_OF_WEEK,Calendar.SHORT,new Locale("en", "us")).toLowerCase();
        String tmp[]=((String)Configurations.getWeeklyWorkingSchedule().get(dayName).get("start")).split(":");
        Cal.set(Calendar.HOUR_OF_DAY, Integer.parseInt(tmp[0]));
        Cal.set(Calendar.MINUTE, Integer.parseInt(tmp[1]));
        Cal.set(Calendar.SECOND, 0);
        long start=Cal.getTimeInMillis();
        tmp=((String)Configurations.getWeeklyWorkingSchedule().get(dayName).get("end")).split(":");
        Cal.set(Calendar.HOUR_OF_DAY, Integer.parseInt(tmp[0]));
        Cal.set(Calendar.MINUTE, Integer.parseInt(tmp[1]));
        Cal.set(Calendar.SECOND, 0);
        long end=Cal.getTimeInMillis();

        plot.getDomainAxis().setAutoRange(false);
        plot.getDomainAxis().setRange(start,end);
    }
};
DCP.restoreAutoBounds();

谢谢大家.

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