package org.chartsy.sma;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.text.DecimalFormat;
import java.util.LinkedHashMap;
import org.chartsy.main.ChartFrame;
import org.chartsy.main.chart.Overlay;
import org.chartsy.main.data.Dataset;
import org.chartsy.main.utils.DefaultPainter;
import org.chartsy.main.utils.Range;
import org.chartsy.main.utils.SerialVersion;
import org.openide.nodes.AbstractNode;
/**
*
* @author viorel.gheba
*/
public class SMA
extends Overlay
{
private static final long serialVersionUID = SerialVersion.APPVERSION;
public static final String SMA = "sma";
private OverlayProperties properties;
public SMA()
{
super();
properties = new OverlayProperties();
}
public String getName()
{ return "SMA"; }
public String getLabel()
{ return properties.getLabel() + " (" + properties.getPrice() + ", " + properties.getPeriod() + ")"; }
public Overlay newInstance()
{ return new SMA(); }
public LinkedHashMap getHTML(ChartFrame cf, int i) {
LinkedHashMap ht = new LinkedHashMap();
DecimalFormat df = new DecimalFormat("#,##0.00");
double[] values = getValues(cf, i);
ht.put(getLabel(), " ");
if (values.length > 0) {
Color[] colors = getColors();
for (int j = 0; j < values.length; j++) {
ht.put(getFontHTML(colors[j], "SMA:"),
getFontHTML(colors[j], df.format(values[j])));
}
}
return ht;
}
public void paint(Graphics2D g, ChartFrame cf, Rectangle bounds)
{
Dataset sma = visibleDataset(cf, SMA);
if (sma != null)
{
Range range = cf.getSplitPanel().getChartPanel().getRange();
DefaultPainter.line(g, cf, range, bounds, sma, properties.getColor(), properties.getStroke(), Dataset.getPrice(properties.getPrice()));
}
}
public void calculate()
{
Dataset initial = getDataset();
if (initial != null && !initial.isEmpty())
{
int period = properties.getPeriod();
Dataset sma = Dataset.SMA(initial, period);
addDataset(SMA, sma);
}
}
public Color[] getColors()
{ return new Color[] {properties.getColor()}; }
public double[] getValues(ChartFrame cf)
{
Dataset sma = visibleDataset(cf, SMA);
if (sma != null) {
int price = Dataset.getPrice(properties.getPrice());
return new double[] {sma.getLastPrice(price)};
}
return new double[] {};
}
public double[] getValues(ChartFrame cf, int i)
{
Dataset sma = visibleDataset(cf, SMA);
if (sma != null) {
String price = properties.getPrice();
return new double[] {sma.getPriceAt(i, price)};
}
return new double[] {};
}
public boolean getMarkerVisibility()
{ return properties.getMarker(); }
public AbstractNode getNode()
{ return new OverlayNode(properties); }
public String getPrice()
{ return properties.getPrice(); }
}