Java CategoryDataset.addChangeListener方法代码示例

import org.jfree.data.category.CategoryDataset; //导入方法依赖的package包/类
/**
 * Sets a dataset for the plot.
 *
 * @param index  the dataset index.
 * @param dataset  the dataset (<code>null</code> permitted).
 */
public void setDataset(int index, CategoryDataset dataset) {
    
    CategoryDataset existing = (CategoryDataset) 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);
    
}
 

import org.jfree.data.category.CategoryDataset; //导入方法依赖的package包/类
/**
 * Sets the dataset used by the plot and sends a {@link PlotChangeEvent}
 * to all registered listeners.
 * 
 * @param dataset  the dataset (<code>null</code> permitted).
 * 
 * @see #getDataset()
 */
public void setDataset(CategoryDataset dataset) {
    // if there is an existing dataset, remove the plot from the list of 
    // change listeners...
    if (this.dataset != null) {
        this.dataset.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 to trigger plot change event
    datasetChanged(new DatasetChangeEvent(this, dataset));
}
 

import org.jfree.data.category.CategoryDataset; //导入方法依赖的package包/类
/**
 * Sets the dataset used by the plot and sends a {@link PlotChangeEvent}
 * to all registered listeners.
 * 
 * @param dataset  the dataset (<code>null</code> permitted).
 */
public void setDataset(CategoryDataset dataset) {
    // if there is an existing dataset, remove the plot from the list of 
    // change listeners...
    if (this.dataset != null) {
        this.dataset.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 to trigger plot change event
    datasetChanged(new DatasetChangeEvent(this, dataset));
}
 

import org.jfree.data.category.CategoryDataset; //导入方法依赖的package包/类
/**
 * Sets a dataset for the plot.
 *
 * @param index  the dataset index.
 * @param dataset  the dataset (<code>null</code> permitted).
 * 
 * @see #getDataset(int)
 */
public void setDataset(int index, CategoryDataset dataset) {
    
    CategoryDataset existing = (CategoryDataset) 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);
    
}
 

import org.jfree.data.category.CategoryDataset; //导入方法依赖的package包/类
/**
 * Creates a new spider web plot with the given dataset.
 * 
 * @param dataset  the dataset.
 * @param extract  controls how data is extracted ({@link TableOrder#BY_ROW}
 *                 or {@link TableOrder#BY_COLUMN}).
 */
public SpiderWebPlot(CategoryDataset dataset, TableOrder extract) {
    super();
    if (extract == null) {
        throw new IllegalArgumentException("Null 'extract' argument.");
    }
    this.dataset = dataset;
    if (dataset != null) {
        dataset.addChangeListener(this);
    }

    this.dataExtractOrder = extract;
    this.headPercent = DEFAULT_HEAD;
    this.axisLabelGap = DEFAULT_AXIS_LABEL_GAP;
    this.axisLinePaint = Color.black;
    this.axisLineStroke = new BasicStroke(1.0f);
    
    this.interiorGap = DEFAULT_INTERIOR_GAP;
    this.startAngle = DEFAULT_START_ANGLE;
    this.direction = Rotation.CLOCKWISE;
    this.maxValue = DEFAULT_MAX_VALUE;

    this.seriesPaint = null;
    this.seriesPaintList = new PaintList();
    this.baseSeriesPaint = null;

    this.seriesOutlinePaint = null;
    this.seriesOutlinePaintList = new PaintList();
    this.baseSeriesOutlinePaint = DEFAULT_OUTLINE_PAINT;

    this.seriesOutlineStroke = null;
    this.seriesOutlineStrokeList = new StrokeList();
    this.baseSeriesOutlineStroke = DEFAULT_OUTLINE_STROKE;

    this.labelFont = DEFAULT_LABEL_FONT;
    this.labelPaint = DEFAULT_LABEL_PAINT;
    this.labelGenerator = new StandardCategoryItemLabelGenerator();
    
    this.legendItemShape = DEFAULT_LEGEND_ITEM_CIRCLE;
}