Java PolarItemRenderer类代码示例

import org.jfree.chart.renderer.PolarItemRenderer; //导入依赖的package包/类
/**
 * Sets a renderer and, if requested, sends a {@link PlotChangeEvent} to
 * all registered listeners.
 *
 * @param index  the index.
 * @param renderer  the renderer.
 * @param notify  notify listeners?
 *
 * @see #getRenderer(int)
 *
 * @since 1.0.14
 */
public void setRenderer(int index, PolarItemRenderer renderer,
                        boolean notify) {
    PolarItemRenderer existing = getRenderer(index);
    if (existing != null) {
        existing.removeChangeListener(this);
    }
    this.renderers.set(index, renderer);
    if (renderer != null) {
        renderer.setPlot(this);
        renderer.addChangeListener(this);
    }
    if (notify) {
        fireChangeEvent();
    }
}
 

import org.jfree.chart.renderer.PolarItemRenderer; //导入依赖的package包/类
/**
 * Returns the legend items for the plot.  Each legend item is generated by
 * the plot's m_Renderer, since the m_Renderer is responsible for the visual
 * representation of the data.
 *
 * @return The legend items.
 */
@Override
public LegendItemCollection getLegendItems() {
    if (this.fixedLegendItems != null) {
        return this.fixedLegendItems;
    }
    LegendItemCollection result = new LegendItemCollection();
    int count = this.datasets.size();
    for (int datasetIndex = 0; datasetIndex < count; datasetIndex++) {
        XYDataset dataset = getDataset(datasetIndex);
        PolarItemRenderer renderer = getRenderer(datasetIndex);
        if (dataset != null && renderer != null) {
            int seriesCount = dataset.getSeriesCount();
            for (int i = 0; i < seriesCount; i++) {
                LegendItem item = renderer.getLegendItem(i);
                result.add(item);
            }
        }
    }
    return result;
}
 

import org.jfree.chart.renderer.PolarItemRenderer; //导入依赖的package包/类
/**
 * Returns the legend items for the plot.  Each legend item is generated by
 * the plot's m_Renderer, since the m_Renderer is responsible for the visual
 * representation of the data.
 *
 * @return The legend items.
 */
public LegendItemCollection getLegendItems() {
    if (this.fixedLegendItems != null) {
        return this.fixedLegendItems;
    }
    LegendItemCollection result = new LegendItemCollection();
    int count = this.datasets.size();
    for (int datasetIndex = 0; datasetIndex < count; datasetIndex++) {
        XYDataset dataset = getDataset(datasetIndex);
        PolarItemRenderer renderer = getRenderer(datasetIndex);
        if (dataset != null && renderer != null) {
            int seriesCount = dataset.getSeriesCount();
            for (int i = 0; i < seriesCount; i++) {
                LegendItem item = renderer.getLegendItem(i);
                result.add(item);
            }
        }
    }
    return result;
}
 

import org.jfree.chart.renderer.PolarItemRenderer; //导入依赖的package包/类
/**
 * Sets the item renderer, and notifies all listeners of a change to the plot.
 * <P>
 * If the renderer is set to <code>null</code>, no chart will be drawn.
 *
 * @param renderer  the new renderer (<code>null</code> permitted).
 */
public void setRenderer(PolarItemRenderer renderer) {
    if (this.renderer != null) {
        this.renderer.removeChangeListener(this);
    }
   
    this.renderer = renderer;
    if (this.renderer != null) {
        this.renderer.setPlot(this);
    }
   
    notifyListeners(new PlotChangeEvent(this));
}
 

import org.jfree.chart.renderer.PolarItemRenderer; //导入依赖的package包/类
/**
 * Sets the item renderer, and notifies all listeners of a change to the 
 * plot.
 * <P>
 * If the renderer is set to <code>null</code>, no chart will be drawn.
 *
 * @param renderer  the new renderer (<code>null</code> permitted).
 * 
 * @see #getRenderer()
 */
public void setRenderer(PolarItemRenderer renderer) {
    if (this.renderer != null) {
        this.renderer.removeChangeListener(this);
    }
   
    this.renderer = renderer;
    if (this.renderer != null) {
        this.renderer.setPlot(this);
    }
   
    notifyListeners(new PlotChangeEvent(this));
}
 

import org.jfree.chart.renderer.PolarItemRenderer; //导入依赖的package包/类
/**
 * Draws a representation of the data within the dataArea region, using the
 * current m_Renderer.
 *
 * @param g2  the graphics device.
 * @param dataArea  the region in which the data is to be drawn.
 * @param info  an optional object for collection dimension
 *              information (<code>null</code> permitted).
 */
protected void render(Graphics2D g2, Rectangle2D dataArea,
        PlotRenderingInfo info) {

    // now get the data and plot it (the visual representation will depend
    // on the m_Renderer that has been set)...
    boolean hasData = false;
    int datasetCount = this.datasets.size();
    for (int i = datasetCount - 1; i >= 0; i--) {
        XYDataset dataset = getDataset(i);
        if (dataset == null) {
            continue;
        }
        PolarItemRenderer renderer = getRenderer(i);
        if (renderer == null) {
            continue;
        }
        if (!DatasetUtilities.isEmptyOrNull(dataset)) {
            hasData = true;
            int seriesCount = dataset.getSeriesCount();
            for (int series = 0; series < seriesCount; series++) {
                renderer.drawSeries(g2, dataArea, info, this, dataset,
                        series);
            }
        }
    }
    if (!hasData) {
        drawNoDataMessage(g2, dataArea);
    }
}
 

import org.jfree.chart.renderer.PolarItemRenderer; //导入依赖的package包/类
/**
 * Provides serialization support.
 *
 * @param stream  the input stream.
 *
 * @throws IOException  if there is an I/O error.
 * @throws ClassNotFoundException  if there is a classpath problem.
 */
private void readObject(ObjectInputStream stream)
    throws IOException, ClassNotFoundException {

    stream.defaultReadObject();
    this.angleGridlineStroke = SerialUtilities.readStroke(stream);
    this.angleGridlinePaint = SerialUtilities.readPaint(stream);
    this.radiusGridlineStroke = SerialUtilities.readStroke(stream);
    this.radiusGridlinePaint = SerialUtilities.readPaint(stream);
    this.angleLabelPaint = SerialUtilities.readPaint(stream);

    int rangeAxisCount = this.axes.size();
    for (int i = 0; i < rangeAxisCount; i++) {
        Axis axis = (Axis) this.axes.get(i);
        if (axis != null) {
            axis.setPlot(this);
            axis.addChangeListener(this);
        }
    }
    int datasetCount = this.datasets.size();
    for (int i = 0; i < datasetCount; i++) {
        Dataset dataset = (Dataset) this.datasets.get(i);
        if (dataset != null) {
            dataset.addChangeListener(this);
        }
    }
    int rendererCount = this.renderers.size();
    for (int i = 0; i < rendererCount; i++) {
        PolarItemRenderer renderer = (PolarItemRenderer) this.renderers.get(i);
        if (renderer != null) {
            renderer.addChangeListener(this);
        }
    }
}
 

import org.jfree.chart.renderer.PolarItemRenderer; //导入依赖的package包/类
/**
 * Draws a representation of the data within the dataArea region, using the
 * current m_Renderer.
 *
 * @param g2  the graphics device.
 * @param dataArea  the region in which the data is to be drawn.
 * @param info  an optional object for collection dimension
 *              information ({@code null} permitted).
 */
protected void render(Graphics2D g2, Rectangle2D dataArea,
        PlotRenderingInfo info) {

    // now get the data and plot it (the visual representation will depend
    // on the m_Renderer that has been set)...
    boolean hasData = false;
    int datasetCount = this.datasets.size();
    for (int i = datasetCount - 1; i >= 0; i--) {
        XYDataset dataset = getDataset(i);
        if (dataset == null) {
            continue;
        }
        PolarItemRenderer renderer = getRenderer(i);
        if (renderer == null) {
            continue;
        }
        if (!DatasetUtils.isEmptyOrNull(dataset)) {
            hasData = true;
            int seriesCount = dataset.getSeriesCount();
            for (int series = 0; series < seriesCount; series++) {
                renderer.drawSeries(g2, dataArea, info, this, dataset,
                        series);
            }
        }
    }
    if (!hasData) {
        drawNoDataMessage(g2, dataArea);
    }
}
 

import org.jfree.chart.renderer.PolarItemRenderer; //导入依赖的package包/类
/**
 * Provides serialization support.
 *
 * @param stream  the input stream.
 *
 * @throws IOException  if there is an I/O error.
 * @throws ClassNotFoundException  if there is a classpath problem.
 */
private void readObject(ObjectInputStream stream)
    throws IOException, ClassNotFoundException {

    stream.defaultReadObject();
    this.angleGridlineStroke = SerialUtils.readStroke(stream);
    this.angleGridlinePaint = SerialUtils.readPaint(stream);
    this.radiusGridlineStroke = SerialUtils.readStroke(stream);
    this.radiusGridlinePaint = SerialUtils.readPaint(stream);
    this.angleLabelPaint = SerialUtils.readPaint(stream);

    int rangeAxisCount = this.axes.size();
    for (int i = 0; i < rangeAxisCount; i++) {
        Axis axis = (Axis) this.axes.get(i);
        if (axis != null) {
            axis.setPlot(this);
            axis.addChangeListener(this);
        }
    }
    int datasetCount = this.datasets.size();
    for (int i = 0; i < datasetCount; i++) {
        Dataset dataset = (Dataset) this.datasets.get(i);
        if (dataset != null) {
            dataset.addChangeListener(this);
        }
    }
    int rendererCount = this.renderers.size();
    for (int i = 0; i < rendererCount; i++) {
        PolarItemRenderer renderer = (PolarItemRenderer) this.renderers.get(i);
        if (renderer != null) {
            renderer.addChangeListener(this);
        }
    }
}
 

import org.jfree.chart.renderer.PolarItemRenderer; //导入依赖的package包/类
/**
 * Creates a new plot.
 *
 * @param dataset  the dataset (<code>null</code> permitted).
 * @param radiusAxis  the radius axis (<code>null</code> permitted).
 * @param renderer  the renderer (<code>null</code> permitted).
 */
public PolarPlot(XYDataset dataset,
                 ValueAxis radiusAxis,
                 PolarItemRenderer renderer) {

    super();

    this.dataset = dataset;
    if (this.dataset != null) {
        this.dataset.addChangeListener(this);
    }
    this.angleTickUnit = new NumberTickUnit(DEFAULT_ANGLE_TICK_UNIT_SIZE);

    this.axis = radiusAxis;
    if (this.axis != null) {
        this.axis.setPlot(this);
        this.axis.addChangeListener(this);
    }

    this.renderer = renderer;
    if (this.renderer != null) {
        this.renderer.setPlot(this);
        this.renderer.addChangeListener(this);
    }

    this.angleGridlinesVisible = true;
    this.angleGridlineStroke = DEFAULT_GRIDLINE_STROKE;
    this.angleGridlinePaint = DEFAULT_GRIDLINE_PAINT;

    this.radiusGridlinesVisible = true;
    this.radiusGridlineStroke = DEFAULT_GRIDLINE_STROKE;
    this.radiusGridlinePaint = DEFAULT_GRIDLINE_PAINT;
}
 

import org.jfree.chart.renderer.PolarItemRenderer; //导入依赖的package包/类
/**
 * Sets the item renderer, and notifies all listeners of a change to the
 * plot.
 * <P>
 * If the renderer is set to <code>null</code>, no chart will be drawn.
 *
 * @param renderer  the new renderer (<code>null</code> permitted).
 *
 * @see #getRenderer()
 */
public void setRenderer(PolarItemRenderer renderer) {
    if (this.renderer != null) {
        this.renderer.removeChangeListener(this);
    }

    this.renderer = renderer;
    if (this.renderer != null) {
        this.renderer.setPlot(this);
    }
    fireChangeEvent();
}