Java ChartRenderingInfo.getEntityCollection方法代码示例

import org.jfree.chart.ChartRenderingInfo; //导入方法依赖的package包/类
/**
 * Returns the tooltip text.
 * 
 * @param canvas  the canvas that is displaying the chart.
 * @param x  the x-coordinate of the mouse pointer.
 * @param y  the y-coordinate of the mouse pointer.
 * 
 * @return String The tooltip text (possibly {@code null}).
  */
private String getTooltipText(ChartCanvas canvas, double x, double y) {
    ChartRenderingInfo info = canvas.getRenderingInfo();
    if (info == null) {
        return null;
    }
    EntityCollection entities = info.getEntityCollection();
    if (entities == null) {
        return null;
    }
    ChartEntity entity = entities.getEntity(x, y);
    if (entity == null) {
        return null;
    }
    return entity.getToolTipText();
}
 

import org.jfree.chart.ChartRenderingInfo; //导入方法依赖的package包/类
/**
 * Creates an HTML image map.
 *
 * @param name  the map name (<code>null</code> not permitted).
 * @param info  the chart rendering info (<code>null</code> not permitted).
 * @param toolTipTagFragmentGenerator  the tool tip generator.
 * @param urlTagFragmentGenerator  the url generator.
 *
 * @return the map tag.
 */
public static String getImageMap(String name,
                                 ChartRenderingInfo info,
                                 ToolTipTagFragmentGenerator toolTipTagFragmentGenerator,
                                 URLTagFragmentGenerator urlTagFragmentGenerator) {

    StringBuffer sb = new StringBuffer();
    sb.append("<MAP NAME=\"" + name + "\">");
    sb.append(System.getProperty("line.separator"));
    EntityCollection entities = info.getEntityCollection();
    if (entities != null) {
        Iterator iterator = entities.iterator();
        while (iterator.hasNext()) {
            ChartEntity entity = (ChartEntity) iterator.next();
            String area = entity.getImageMapAreaTag(toolTipTagFragmentGenerator,
                                                    urlTagFragmentGenerator);
            if (area.length() > 0) {
                sb.append(area);
                sb.append(System.getProperty("line.separator"));
            }
        }
    }
    sb.append("</MAP>");

    return sb.toString();
}
 

import org.jfree.chart.ChartRenderingInfo; //导入方法依赖的package包/类
/**
 * A check to ensure that an item that falls outside the plot's data area
 * does NOT generate an item entity.
 */
@Test
public void testNoDisplayedItem() {
    XYSeriesCollection dataset = new XYSeriesCollection();
    XYSeries s1 = new XYSeries("S1");
    s1.add(10.0, 10.0);
    dataset.addSeries(s1);
    JFreeChart chart = ChartFactory.createXYLineChart("Title", "X", "Y",
            dataset, PlotOrientation.VERTICAL, false, true, false);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setRenderer(new StandardXYItemRenderer());
    NumberAxis xAxis = (NumberAxis) plot.getDomainAxis();
    xAxis.setRange(0.0, 5.0);
    NumberAxis yAxis = (NumberAxis) plot.getRangeAxis();
    yAxis.setRange(0.0, 5.0);
    BufferedImage image = new BufferedImage(200 , 100,
            BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = image.createGraphics();
    ChartRenderingInfo info = new ChartRenderingInfo();
    chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, info);
    g2.dispose();
    EntityCollection ec = info.getEntityCollection();
    assertFalse(TestUtilities.containsInstanceOf(ec.getEntities(),
            XYItemEntity.class));
}
 

import org.jfree.chart.ChartRenderingInfo; //导入方法依赖的package包/类
/**
 * Returns the tooltip text.
 * 
 * @param canvas  the canvas that is displaying the chart.
 * @param x  the x-coordinate of the mouse pointer.
 * @param y  the y-coordinate of the mouse pointer.
 * 
 * @return String The tooltip text (possibly <code>null</code>).
  */
private String getTooltipText(ChartCanvas canvas, double x, double y) {
    ChartRenderingInfo info = canvas.getRenderingInfo();
    if (info == null) {
        return null;
    }
    EntityCollection entities = info.getEntityCollection();
    if (entities == null) {
        return null;
    }
    ChartEntity entity = entities.getEntity(x, y);
    if (entity == null) {
        return null;
    }
    return entity.getToolTipText();
}
 

import org.jfree.chart.ChartRenderingInfo; //导入方法依赖的package包/类
/**
 * A check to ensure that an item that falls outside the plot's data area
 * does NOT generate an item entity.
 */
@Test
public void testNoDisplayedItem() {
    XYSeriesCollection dataset = new XYSeriesCollection();
    XYSeries s1 = new XYSeries("S1");
    s1.add(10.0, 10.0);
    dataset.addSeries(s1);
    JFreeChart chart = ChartFactory.createXYLineChart("Title", "X", "Y",
            dataset, PlotOrientation.VERTICAL, false, true, false);
    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setRenderer(new StandardXYItemRenderer());
    NumberAxis xAxis = (NumberAxis) plot.getDomainAxis();
    xAxis.setRange(0.0, 5.0);
    NumberAxis yAxis = (NumberAxis) plot.getRangeAxis();
    yAxis.setRange(0.0, 5.0);
    BufferedImage image = new BufferedImage(200 , 100,
            BufferedImage.TYPE_INT_RGB);
    Graphics2D g2 = image.createGraphics();
    ChartRenderingInfo info = new ChartRenderingInfo();
    chart.draw(g2, new Rectangle2D.Double(0, 0, 200, 100), null, info);
    g2.dispose();
    EntityCollection ec = info.getEntityCollection();
    assertFalse(TestUtils.containsInstanceOf(ec.getEntities(),
            XYItemEntity.class));
}
 

import org.jfree.chart.ChartRenderingInfo; //导入方法依赖的package包/类
/**
 * Creates an image map element that complies with the XHTML 1.0
 * specification.
 *
 * @param name  the map name (<code>null</code> not permitted).
 * @param info  the chart rendering info (<code>null</code> not permitted).
 * @param toolTipTagFragmentGenerator  a generator for the HTML fragment
 *     that will contain the tooltip text (<code>null</code> not permitted 
 *     if <code>info</code> contains tooltip information).
 * @param urlTagFragmentGenerator  a generator for the HTML fragment that
 *     will contain the URL reference (<code>null</code> not permitted if 
 *     <code>info</code> contains URLs).
 *
 * @return The map tag.
 */
public static String getImageMap(String name, ChartRenderingInfo info,
        ToolTipTagFragmentGenerator toolTipTagFragmentGenerator,
        URLTagFragmentGenerator urlTagFragmentGenerator) {

    StringBuffer sb = new StringBuffer();
    sb.append("<map id=\"" + name + "\" name=\"" + name + "\">");
    sb.append(StringUtils.getLineSeparator());
    EntityCollection entities = info.getEntityCollection();
    if (entities != null) {
        int count = entities.getEntityCount();
        for (int i = count - 1; i >= 0; i--) {
            ChartEntity entity = entities.getEntity(i);
            if (entity.getToolTipText() != null 
                    || entity.getURLText() != null) {
                String area = entity.getImageMapAreaTag(
                        toolTipTagFragmentGenerator, 
                        urlTagFragmentGenerator);
                if (area.length() > 0) {
                    sb.append(area);
                    sb.append(StringUtils.getLineSeparator());
                }
            }
        }
    }
    sb.append("</map>");
    return sb.toString();
    
}
 

import org.jfree.chart.ChartRenderingInfo; //导入方法依赖的package包/类
/**
 * A convenience method that returns a reference to the entity
 * collection (may be <code>null</code>) being used to record
 * chart entities.
 * 
 * @return The entity collection (possibly <code>null</code>).
 */
public EntityCollection getEntityCollection() {
    EntityCollection result = null;
    if (this.info != null) {
        ChartRenderingInfo owner = this.info.getOwner();
        if (owner != null) {
            result = owner.getEntityCollection(); 
        }
    }
    return result;
}
 

import org.jfree.chart.ChartRenderingInfo; //导入方法依赖的package包/类
/**
 * Creates an image map element that complies with the XHTML 1.0
 * specification.
 *
 * @param name  the map name (<code>null</code> not permitted).
 * @param info  the chart rendering info (<code>null</code> not permitted).
 * @param toolTipTagFragmentGenerator  a generator for the HTML fragment
 *     that will contain the tooltip text (<code>null</code> not permitted
 *     if <code>info</code> contains tooltip information).
 * @param urlTagFragmentGenerator  a generator for the HTML fragment that
 *     will contain the URL reference (<code>null</code> not permitted if
 *     <code>info</code> contains URLs).
 *
 * @return The map tag.
 */
public static String getImageMap(String name, ChartRenderingInfo info,
        ToolTipTagFragmentGenerator toolTipTagFragmentGenerator,
        URLTagFragmentGenerator urlTagFragmentGenerator) {

    StringBuilder sb = new StringBuilder();
    sb.append("<map id=\"").append(htmlEscape(name));
    sb.append("\" name=\"").append(htmlEscape(name)).append("\">");
    sb.append(StringUtils.getLineSeparator());
    EntityCollection entities = info.getEntityCollection();
    if (entities != null) {
        int count = entities.getEntityCount();
        for (int i = count - 1; i >= 0; i--) {
            ChartEntity entity = entities.getEntity(i);
            if (entity.getToolTipText() != null
                    || entity.getURLText() != null) {
                String area = entity.getImageMapAreaTag(
                        toolTipTagFragmentGenerator,
                        urlTagFragmentGenerator);
                if (area.length() > 0) {
                    sb.append(area);
                    sb.append(StringUtils.getLineSeparator());
                }
            }
        }
    }
    sb.append("</map>");
    return sb.toString();

}
 

import org.jfree.chart.ChartRenderingInfo; //导入方法依赖的package包/类
/**
 * A convenience method that returns a reference to the entity
 * collection (may be <code>null</code>) being used to record
 * chart entities.
 *
 * @return The entity collection (possibly <code>null</code>).
 */
public EntityCollection getEntityCollection() {
    EntityCollection result = null;
    if (this.info != null) {
        ChartRenderingInfo owner = this.info.getOwner();
        if (owner != null) {
            result = owner.getEntityCollection();
        }
    }
    return result;
}
 

import org.jfree.chart.ChartRenderingInfo; //导入方法依赖的package包/类
/**
 * Creates an image map element that complies with the XHTML 1.0
 * specification.
 *
 * @param name  the map name ({@code null} not permitted).
 * @param info  the chart rendering info ({@code null} not permitted).
 * @param toolTipTagFragmentGenerator  a generator for the HTML fragment
 *     that will contain the tooltip text ({@code null} not permitted
 *     if {@code info} contains tooltip information).
 * @param urlTagFragmentGenerator  a generator for the HTML fragment that
 *     will contain the URL reference ({@code null} not permitted if
 *     {@code info} contains URLs).
 *
 * @return The map tag.
 */
public static String getImageMap(String name, ChartRenderingInfo info,
        ToolTipTagFragmentGenerator toolTipTagFragmentGenerator,
        URLTagFragmentGenerator urlTagFragmentGenerator) {

    StringBuilder sb = new StringBuilder();
    sb.append("<map id=\"").append(htmlEscape(name));
    sb.append("\" name=\"").append(htmlEscape(name)).append("\">");
    sb.append(StringUtils.getLineSeparator());
    EntityCollection entities = info.getEntityCollection();
    if (entities != null) {
        int count = entities.getEntityCount();
        for (int i = count - 1; i >= 0; i--) {
            ChartEntity entity = entities.getEntity(i);
            if (entity.getToolTipText() != null
                    || entity.getURLText() != null) {
                String area = entity.getImageMapAreaTag(
                        toolTipTagFragmentGenerator,
                        urlTagFragmentGenerator);
                if (area.length() > 0) {
                    sb.append(area);
                    sb.append(StringUtils.getLineSeparator());
                }
            }
        }
    }
    sb.append("</map>");
    return sb.toString();

}
 

import org.jfree.chart.ChartRenderingInfo; //导入方法依赖的package包/类
/**
 * A convenience method that returns a reference to the entity
 * collection (may be {@code null}) being used to record
 * chart entities.
 *
 * @return The entity collection (possibly {@code null}).
 */
public EntityCollection getEntityCollection() {
    EntityCollection result = null;
    if (this.info != null) {
        ChartRenderingInfo owner = this.info.getOwner();
        if (owner != null) {
            result = owner.getEntityCollection();
        }
    }
    return result;
}
 

import org.jfree.chart.ChartRenderingInfo; //导入方法依赖的package包/类
/**
 * 
 */
public static List<JRPrintImageAreaHyperlink> getImageAreaHyperlinks(
	JFreeChart chart,
	ChartHyperlinkProvider chartHyperlinkProvider,
	Graphics2D grx,
	Rectangle2D renderingArea
	)// throws JRException
{
	List<JRPrintImageAreaHyperlink> areaHyperlinks = null;
	
	if (chartHyperlinkProvider != null && chartHyperlinkProvider.hasHyperlinks())
	{
		ChartRenderingInfo renderingInfo = new ChartRenderingInfo();

		if (grx == null)
		{
			chart.createBufferedImage((int) renderingArea.getWidth(), (int)  renderingArea.getHeight(), renderingInfo);
		}
		else
		{
			chart.draw(grx, renderingArea, renderingInfo);
		}
		
		EntityCollection entityCollection = renderingInfo.getEntityCollection();
		if (entityCollection != null && entityCollection.getEntityCount() > 0)
		{
			areaHyperlinks = new ArrayList<JRPrintImageAreaHyperlink>(entityCollection.getEntityCount());
			
			for (@SuppressWarnings("unchecked")
			Iterator<ChartEntity> it = entityCollection.iterator(); it.hasNext();)
			{
				ChartEntity entity = it.next();
				JRPrintHyperlink printHyperlink = chartHyperlinkProvider.getEntityHyperlink(entity);
				if (printHyperlink != null)
				{
					JRPrintImageArea area = getImageArea(entity);

					JRPrintImageAreaHyperlink areaHyperlink = new JRPrintImageAreaHyperlink();
					areaHyperlink.setArea(area);
					areaHyperlink.setHyperlink(printHyperlink);
					areaHyperlinks.add(areaHyperlink);
				}
			}
		}
	}
	
	return areaHyperlinks;
}