Java Timeline类代码示例

import org.jfree.chart.axis.Timeline; //导入依赖的package包/类
/**
 * Creates and returns a default instance of a high-low-open-close chart with
 * a special timeline. This timeline can be a {@link org.jfree.chart.axis.SegmentedTimeline}
 * such as the Monday trough Friday timeline that will remove Saturdays and Sundays from
 * the axis.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param timeAxisLabel  a label for the time axis (<code>null</code> permitted).
 * @param valueAxisLabel  a label for the value axis (<code>null</code> permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param timeline  the timeline.
 * @param legend  a flag specifying whether or not a legend is required.
 *
 * @return a high-low-open-close chart.
 */
public static JFreeChart createHighLowChart(String title,
                                            String timeAxisLabel,
                                            String valueAxisLabel,
                                            OHLCDataset dataset,
                                            Timeline timeline,
                                            boolean legend) {

    DateAxis timeAxis = new DateAxis(timeAxisLabel);
    timeAxis.setTimeline(timeline);
    NumberAxis valueAxis = new NumberAxis(valueAxisLabel);
    HighLowRenderer renderer = new HighLowRenderer();
    renderer.setToolTipGenerator(new HighLowItemLabelGenerator());
    XYPlot plot = new XYPlot(dataset, timeAxis, valueAxis, renderer);
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, legend);

    return chart;

}
 

import org.jfree.chart.axis.Timeline; //导入依赖的package包/类
/**
 * Creates and returns a default instance of a high-low-open-close chart 
 * with a special timeline. This timeline can be a 
 * {@link org.jfree.chart.axis.SegmentedTimeline} such as the Monday 
 * through Friday timeline that will remove Saturdays and Sundays from
 * the axis.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param timeAxisLabel  a label for the time axis (<code>null</code> 
 *                       permitted).
 * @param valueAxisLabel  a label for the value axis (<code>null</code> 
 *                        permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param timeline  the timeline.
 * @param legend  a flag specifying whether or not a legend is required.
 *
 * @return A high-low-open-close chart.
 */
public static JFreeChart createHighLowChart(String title,
                                            String timeAxisLabel,
                                            String valueAxisLabel,
                                            OHLCDataset dataset,
                                            Timeline timeline,
                                            boolean legend) {

    DateAxis timeAxis = new DateAxis(timeAxisLabel);
    timeAxis.setTimeline(timeline);
    NumberAxis valueAxis = new NumberAxis(valueAxisLabel);
    HighLowRenderer renderer = new HighLowRenderer();
    renderer.setBaseToolTipGenerator(new HighLowItemLabelGenerator());
    XYPlot plot = new XYPlot(dataset, timeAxis, valueAxis, renderer);
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    return chart;

}
 

import org.jfree.chart.axis.Timeline; //导入依赖的package包/类
/**
 * Creates and returns a default instance of a high-low-open-close chart
 * with a special timeline. This timeline can be a
 * {@link org.jfree.chart.axis.SegmentedTimeline} such as the Monday
 * through Friday timeline that will remove Saturdays and Sundays from
 * the axis.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param timeAxisLabel  a label for the time axis (<code>null</code>
 *                       permitted).
 * @param valueAxisLabel  a label for the value axis (<code>null</code>
 *                        permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param timeline  the timeline.
 * @param legend  a flag specifying whether or not a legend is required.
 *
 * @return A high-low-open-close chart.
 */
public static JFreeChart createHighLowChart(String title,
                                            String timeAxisLabel,
                                            String valueAxisLabel,
                                            OHLCDataset dataset,
                                            Timeline timeline,
                                            boolean legend) {

    DateAxis timeAxis = new DateAxis(timeAxisLabel);
    timeAxis.setTimeline(timeline);
    NumberAxis valueAxis = new NumberAxis(valueAxisLabel);
    HighLowRenderer renderer = new HighLowRenderer();
    renderer.setBaseToolTipGenerator(new HighLowItemLabelGenerator());
    XYPlot plot = new XYPlot(dataset, timeAxis, valueAxis, renderer);
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

import org.jfree.chart.axis.Timeline; //导入依赖的package包/类
/**
 * Notification when the scrollbar's model changes.
 *
 * @param event
 */
public void adjustmentValueChanged(AdjustmentEvent event) {
    if (mUpdating) {
        return;
    }

    mUpdating = true;

    double start = getValue() / mRatio + mDataRangeMin;
    double end = start + mViewLength;

    if (end > start) {
        Timeline tl = ((DateAxis) mDomainAxis).getTimeline();
        start = tl.toMillisecond((long) start);
        end = tl.toMillisecond((long) end);
        mDomainAxis.setRange(start, end);
        //System.out.println(String.format("start=%f end=%f", start, end));
    }

    mUpdating = false;
}
 

import org.jfree.chart.axis.Timeline; //导入依赖的package包/类
/**
 * Creates and returns a default instance of a high-low-open-close chart
 * with a special timeline. This timeline can be a
 * {@link org.jfree.chart.axis.SegmentedTimeline} such as the Monday
 * through Friday timeline that will remove Saturdays and Sundays from
 * the axis.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param timeAxisLabel  a label for the time axis (<code>null</code>
 *                       permitted).
 * @param valueAxisLabel  a label for the value axis (<code>null</code>
 *                        permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param timeline  the timeline.
 * @param legend  a flag specifying whether or not a legend is required.
 *
 * @return A high-low-open-close chart.
 */
public static JFreeChart createHighLowChart(String title,
        String timeAxisLabel, String valueAxisLabel, OHLCDataset dataset,
        Timeline timeline, boolean legend) {

    DateAxis timeAxis = new DateAxis(timeAxisLabel);
    timeAxis.setTimeline(timeline);
    NumberAxis valueAxis = new NumberAxis(valueAxisLabel);
    HighLowRenderer renderer = new HighLowRenderer();
    renderer.setBaseToolTipGenerator(new HighLowItemLabelGenerator());
    XYPlot plot = new XYPlot(dataset, timeAxis, valueAxis, renderer);
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

import org.jfree.chart.axis.Timeline; //导入依赖的package包/类
private void updateAxis() {
    if (mUpdating) {
        return;
    }
    mUpdating = true;

    double viewMin = 0;
    double viewMax = 0;

    Range dataRange = mPlot.getDataRange(mDomainAxis);
    if (dataRange != null) {
        mDataRangeMin = dataRange.getLowerBound();
        mDataRangeMax = dataRange.getUpperBound();

        if (mFirstTime) {
            mDomainAxis.setAutoRange(false);
            mDomainAxis.setRange(mDataRangeMin, mDataRangeMin + mPageSizeMillis);  // 30s
        }

        viewMin = mDomainAxis.getLowerBound();
        viewMax = mDomainAxis.getUpperBound();

        Timeline tl = mDomainAxis.getTimeline();
        mDataRangeMin = tl.toTimelineValue((long) mDataRangeMin);
        mDataRangeMax = tl.toTimelineValue((long) mDataRangeMax);
        viewMin = tl.toTimelineValue((long) viewMin);
        viewMax = tl.toTimelineValue((long) viewMax);

        mViewLength = viewMax - viewMin;
        mRatio = STEPS / (mDataRangeMax - mDataRangeMin);

        if (mFirstTime) {
            // Must do this to support page scrolling when
            // clicking in the scrollbar "gutter". Make the
            // blockIncrement somewhat smaller than the view size
            // so teh user sees the old value when page scrolling.
            int blockIncrement = (int) (mPageSizeMillis * 0.9 * STEPS / mViewLength);
            setBlockIncrement(blockIncrement);
            setUnitIncrement(blockIncrement / 20);
            mFirstTime = false;
            setVisible(true);
        }
    } else {
        mDataRangeMin = 0;
        mDataRangeMax = 0;
        mViewLength = 0;
        mRatio = 1;
    }

    int newMin = 0;
    int newMax = STEPS;
    int newExtent = (int) (mViewLength * mRatio);
    int newValue = (int) ((viewMin - mDataRangeMin) * mRatio);

    setValues(newValue, newExtent, newMin, newMax);
    mUpdating = false;
}
 

import org.jfree.chart.axis.Timeline; //导入依赖的package包/类
/**
 * Creates and returns a default instance of a high-low-open-close chart
 * with a special timeline. This timeline can be a
 * {@link org.jfree.chart.axis.SegmentedTimeline} such as the Monday
 * through Friday timeline that will remove Saturdays and Sundays from
 * the axis.
 *
 * @param title  the chart title (<code>null</code> permitted).
 * @param timeAxisLabel  a label for the time axis (<code>null</code>
 *                       permitted).
 * @param valueAxisLabel  a label for the value axis (<code>null</code>
 *                        permitted).
 * @param dataset  the dataset for the chart (<code>null</code> permitted).
 * @param timeline  the timeline.
 * @param legend  a flag specifying whether or not a legend is required.
 *
 * @return A high-low-open-close chart.
 */
public static JFreeChart createHighLowChart(String title, 
        String timeAxisLabel, String valueAxisLabel,
        OHLCDataset dataset, Timeline timeline, boolean legend) {

    DateAxis timeAxis = new DateAxis(timeAxisLabel);
    timeAxis.setTimeline(timeline);
    NumberAxis valueAxis = new NumberAxis(valueAxisLabel);
    HighLowRenderer renderer = new HighLowRenderer();
    renderer.setBaseToolTipGenerator(new HighLowItemLabelGenerator());
    XYPlot plot = new XYPlot(dataset, timeAxis, valueAxis, renderer);
    JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT,
            plot, legend);
    currentTheme.apply(chart);
    return chart;

}
 

import org.jfree.chart.axis.Timeline; //导入依赖的package包/类
/**
 * Getter for property timeline.
 * @return Value of property timeline.
 */
public Timeline getTimeline() {
    return this.timeline;
}
 

import org.jfree.chart.axis.Timeline; //导入依赖的package包/类
/**
 * Setter for property timeline.
 * @param timeline New value of property timeline.
 */
public void setTimeline(Timeline timeline) {
    this.timeline = timeline;
}