Java ChartMouseEvent.getEntity方法代码示例

import org.jfree.chart.ChartMouseEvent; //导入方法依赖的package包/类
@Override
public void chartMouseClicked(ChartMouseEvent event)
{
	if ((event.getEntity()!=null) && (event.getTrigger().getClickCount() > 1))
	{
		setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
		try
		{
			GraphColumn bgc = getGraphColumn(event);
			if (bgc == null)
			{
				return;
			}

			MQuery query = bgc.getMQuery(builder.getMGoal());
			if (query != null)
				AEnv.zoom(query);
			else
				log.warn("Nothing to zoom to - " + bgc);
		}
		finally
		{
			setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
		}
	}
}
 

import org.jfree.chart.ChartMouseEvent; //导入方法依赖的package包/类
/**
 * Callback method for receiving notification of a mouse movement on a
 * chart.
 *
 * @param event information about the event.
 */
public void chartMouseMoved(ChartMouseEvent event)
{
    if (!(event.getChart().getXYPlot().getRenderer() instanceof MotionBubbleRenderer))
    {
        return;
    }

    MotionBubbleRenderer renderer = (MotionBubbleRenderer) event.getChart().getXYPlot().getRenderer();

    if (!(event.getEntity() instanceof XYItemEntity))
    {
        renderer.setHighlightedItem(-1, -1);
        return;
    }

    XYItemEntity item = (XYItemEntity) event.getEntity();
    renderer.setHighlightedItem(item.getSeriesIndex(), item.getItem());
}
 

import org.jfree.chart.ChartMouseEvent; //导入方法依赖的package包/类
@Override
public void chartMouseClicked(ChartMouseEvent event) {
    if (event.getEntity().getClass() == CategoryItemEntity.class) {
        if ((getChart() != null) && (getChart().getClass() == HighlightableBarChart.class)) {
            HighlightableBarChart chart = (HighlightableBarChart) getChart();
            CategoryItemEntity entity = (CategoryItemEntity) event.getEntity();

            // toggle highlight if already selected
            if (chart.isHighlighted(entity)) {
                chart.clearHighlights();

                firePropertyChange("highlightedBar", getRowAndColumn(entity), null);
            }
            else {
                chart.clearHighlights();
                chart.highlightEntity(entity);

                firePropertyChange("highlightedBar", null, getRowAndColumn(entity));
            }

            // assume whatever fired the event will repaint the chart
        }
    }
}
 

import org.jfree.chart.ChartMouseEvent; //导入方法依赖的package包/类
public void chartMouseClicked(ChartMouseEvent e) {    	    	                
	
	if(e.getEntity() != null){
		for(Area shape : areas){    		
			//if(shape.contains(e.getTrigger().getPoint())){
			if(shape.equals(e.getEntity().getArea())){

				if(!e.getTrigger().isControlDown()){
					selected.clear();
				}
				if(selected.contains(shape)){
					selected.remove(shape);
				} else {
					selected.add(shape);
				}
			}    	
		}
	} else {    		
		selected.clear();
	}
	    	
	setSelectedForList(true);
}
 

import org.jfree.chart.ChartMouseEvent; //导入方法依赖的package包/类
/**
 * Get BarGraphColumn for ChartEntity
 * @param event
 * @return BarGraphColumn or null if not found
 */
private GraphColumn getGraphColumn(ChartMouseEvent event)
{
	ChartEntity entity = event.getEntity();
	String key = null;
	if (entity instanceof CategoryItemEntity)
	{
		Comparable<?> colKey = ((CategoryItemEntity)entity).getColumnKey();
		if (colKey != null)
		{
			key = colKey.toString();
		}
	}
	else if (entity instanceof PieSectionEntity)
	{
		Comparable<?> sectionKey = ((PieSectionEntity)entity).getSectionKey();
		if (sectionKey != null)
		{
			key = sectionKey.toString();
		}
	}
	if (key == null)
	{
		return null;
	}
	for (int i = 0; i < list.size(); i++)
	{
		final String label = list.get(i).getLabel();
		if (key.equals(label))
		{
			return list.get(i);
		}
	}
	//
	return null;
}
 

import org.jfree.chart.ChartMouseEvent; //导入方法依赖的package包/类
@Override
public final void chartMouseClicked(ChartMouseEvent event) {
    int series = -1;

    ChartEntity entity = event.getEntity();

    if (entity == null) {
        return;
    }

    // users can click on either the line or the legend
    // regardless, figure out the series index
    if (entity.getClass() == XYItemEntity.class) {
        series = ((XYItemEntity) event.getEntity()).getSeriesIndex();
    }
    else if (entity.getClass() == LegendItemEntity.class) {
        LegendItemEntity legendEntity = (LegendItemEntity) event.getEntity();
        XYDataset dataset = (XYDataset) legendEntity.getDataset();

        for (int i = 0; i < dataset.getSeriesCount(); i++) {
            if (dataset.getSeriesKey(i).equals(legendEntity.getSeriesKey())) {
                series = i;
                break;
            }
        }
    }

    if (series != -1) {
        XYItemRenderer renderer = getChart().getXYPlot().getRenderer();
        Stroke oldHighlight = renderer.getSeriesStroke(series);

        // clear existing highlights
        ((AbstractRenderer) getChart().getXYPlot().getRenderer()).clearSeriesStrokes(false);

        // toggle series stroke
        if (oldHighlight != SELECTED_STROKE) {
            renderer.setSeriesStroke(series, SELECTED_STROKE);

            firePropertyChange("highlightedLine", null, series);
        }
        else {
            renderer.setSeriesStroke(series, null);

            firePropertyChange("highlightedLine", series, null);
        }

        // assume whatever fired the event will repaint the chart
    }
}