package org.timepedia.chronoscope.client.browser;

import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.RootPanel;

import org.timepedia.chronoscope.client.Chart;
import org.timepedia.chronoscope.client.Dataset;
import org.timepedia.chronoscope.client.Datasets;
import org.timepedia.chronoscope.client.XYPlot;
import org.timepedia.chronoscope.client.canvas.ViewReadyCallback;
import org.timepedia.chronoscope.client.data.tuple.Tuple2D;
import org.timepedia.chronoscope.client.gss.GssContext;
import org.timepedia.chronoscope.client.plot.DefaultXYPlot;
import org.timepedia.chronoscope.client.render.XYPlotRenderer;
import org.timepedia.chronoscope.client.util.ArgChecker;
import org.timepedia.exporter.client.Export;
import org.timepedia.exporter.client.Exportable;

public class ChartPanel extends Composite implements Exportable {
  private Element domElement;
  private PlotPanel plotPanel;
  private Dataset[] datasets;
  private ViewReadyCallback viewReadyCallback;
  private int width = 400, height = 250;
  
  public final void init() {
    ArgChecker.isNotNull(this.datasets, "this.datasets");
    ArgChecker.isNotNull(this.domElement, "this.domElement");
    
    XYPlot plot = createPlot(datasets);
    plotPanel = new PlotPanel(domElement, plot, width, height, viewReadyCallback);

    initWidget(plotPanel);
  }
  
  public void setDimensions(int width, int height) {
    this.width = width;
    this.height = height;
  }
  
  public void setDatasets(Dataset[] datasets) {
    this.datasets = datasets;
  }
  
  public void setDomElement(Element element) {
    this.domElement = element;
  }
  
  public void setViewReadyCallback(ViewReadyCallback callback) {
    this.viewReadyCallback = callback;
  }
  
  protected XYPlot createPlot(Dataset[] datasetArray) {
    DefaultXYPlot plot = new DefaultXYPlot();
    plot.setDatasets(new Datasets<Tuple2D>(datasetArray));
    plot.setPlotRenderer(new XYPlotRenderer());
    
    return plot;
  }
  
  public void attach() {
    onAttach();
    RootPanel.detachOnWindowClose(this);
  }

  /**
   * @gwt.export
   */
  @Export
  public Chart getChart() {
    return plotPanel.getChart();
  }

  public int getChartHeight() {
    return plotPanel.getChartHeight();
  }

  public int getChartWidth() {
    return plotPanel.getChartWidth();
  }

  public void setGssContext(GssContext gssContext) {
    plotPanel.setGssContext(gssContext);
  }

  public void setReadyListener(ViewReadyCallback viewReadyCallback) {
    plotPanel.setReadyListener(viewReadyCallback);
  }

}

package org.timepedia.chronoscope.client.browser;

import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.RootPanel;

import org.timepedia.chronoscope.client.Chart;
import org.timepedia.chronoscope.client.Dataset;
import org.timepedia.chronoscope.client.Datasets;
import org.timepedia.chronoscope.client.XYPlot;
import org.timepedia.chronoscope.client.canvas.ViewReadyCallback;
import org.timepedia.chronoscope.client.data.tuple.Tuple2D;
import org.timepedia.chronoscope.client.gss.GssContext;
import org.timepedia.chronoscope.client.plot.DefaultXYPlot;
import org.timepedia.chronoscope.client.render.XYPlotRenderer;
import org.timepedia.chronoscope.client.util.ArgChecker;
import org.timepedia.exporter.client.Export;
import org.timepedia.exporter.client.Exportable;

public class ChartPanel extends Composite implements Exportable {
  private Element domElement;
  private PlotPanel plotPanel;
  private Dataset[] datasets;
  private ViewReadyCallback viewReadyCallback;
  private int width = 400, height = 250;
  
  public final void init() {
    ArgChecker.isNotNull(this.datasets, "this.datasets");
    ArgChecker.isNotNull(this.domElement, "this.domElement");
    
    XYPlot plot = createPlot(datasets);
    plotPanel = new PlotPanel(domElement, plot, width, height, viewReadyCallback);

    initWidget(plotPanel);
  }
  
  public void setDimensions(int width, int height) {
    this.width = width;
    this.height = height;
  }
  
  public void setDatasets(Dataset[] datasets) {
    this.datasets = datasets;
  }
  
  public void setDomElement(Element element) {
    this.domElement = element;
  }
  
  public void setViewReadyCallback(ViewReadyCallback callback) {
    setReadyListener(callback);
  }
  
  protected XYPlot createPlot(Dataset[] datasetArray) {
    DefaultXYPlot plot = new DefaultXYPlot();
    plot.setDatasets(new Datasets<Tuple2D>(datasetArray));
    plot.setPlotRenderer(new XYPlotRenderer());
    
    return plot;
  }
  
  public void attach() {
    onAttach();
    RootPanel.detachOnWindowClose(this);
  }

  /**
   * @gwt.export
   */
  @Export
  public Chart getChart() {
    return plotPanel.getChart();
  }

  public int getChartHeight() {
    return plotPanel.getChartHeight();
  }

  public int getChartWidth() {
    return plotPanel.getChartWidth();
  }

  public void setGssContext(GssContext gssContext) {
    plotPanel.setGssContext(gssContext);
  }

  public void setReadyListener(ViewReadyCallback viewReadyCallback) {
    if(plotPanel == null) {
      this.viewReadyCallback = viewReadyCallback;
    }
    else {
      plotPanel.setReadyListener(viewReadyCallback);
    }
  }

}

Fix ready listener issue.