Example usage for org.jfree.data.general ValueDataset addChangeListener

Introduction

In this page you can find the example usage for org.jfree.data.general ValueDataset addChangeListener.

Prototype

public void addChangeListener(DatasetChangeListener listener);

Source Link

Document

Registers an object for notification of changes to the dataset.

Usage

From source file:org.jfree.experimental.chart.plot.dial.DialPlot.java

/**
 * Sets a dataset for the plot./* www .j a  va  2 s.  c  om*/
 *
 * @param index  the dataset index.
 * @param dataset  the dataset (<code>null</code> permitted).
 */
public void setDataset(int index, ValueDataset dataset) {

    ValueDataset existing = (ValueDataset) this.datasets.get(index);
    if (existing != null) {
        existing.removeChangeListener(this);
    }
    this.datasets.set(index, dataset);
    if (dataset != null) {
        dataset.addChangeListener(this);
    }

    // send a dataset change event to self...
    DatasetChangeEvent event = new DatasetChangeEvent(this, dataset);
    datasetChanged(event);

}

---

From source file:de.laures.cewolf.jfree.ThermometerPlot.java

/**
 * Creates a new thermometer plot, using default attributes where necessary.
 *
 * @param dataset  the data set.//  w  w w  .j  av a2s .c om
 */
public ThermometerPlot(ValueDataset dataset) {
    super();

    this.padding = new RectangleInsets(UnitType.RELATIVE, 0.05, 0.05, 0.05, 0.05);
    this.dataset = dataset;
    if (dataset != null) {
        dataset.addChangeListener(this);
    }
    NumberAxis axis = new NumberAxis(null);
    axis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    axis.setAxisLineVisible(false);
    axis.setPlot(this);
    axis.addChangeListener(this);
    this.rangeAxis = axis;
    setAxisRange();
}

---

From source file:de.laures.cewolf.jfree.ThermometerPlot.java

/**
 * Sets the dataset for the plot, replacing the existing dataset if there
 * is one, and sends a {@link PlotChangeEvent} to all registered listeners.
 *
 * @param dataset  the dataset (<code>null</code> permitted).
 *
 * @see #getDataset()/*from w w w  .ja  va 2 s  .c om*/
 */
public void setDataset(ValueDataset dataset) {

    // if there is an existing dataset, remove the plot from the list of change listeners...
    ValueDataset existing = this.dataset;
    if (existing != null) {
        existing.removeChangeListener(this);
    }

    // set the new dataset, and register the chart as a change listener...
    this.dataset = dataset;
    if (dataset != null) {
        setDatasetGroup(dataset.getGroup());
        dataset.addChangeListener(this);
    }

    // send a dataset change event to self...
    DatasetChangeEvent event = new DatasetChangeEvent(this, dataset);
    datasetChanged(event);
}

---