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package org.chartsy.htphasor;
import com.tictactec.ta.lib.Core;
import com.tictactec.ta.lib.MInteger;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.Stroke;
import java.text.DecimalFormat;
import java.util.LinkedHashMap;
import org.chartsy.main.ChartFrame;
import org.chartsy.main.chart.Indicator;
import org.chartsy.main.data.DataItem;
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.chartsy.main.utils.StrokeGenerator;
import org.chartsy.talib.TaLibInit;
import org.chartsy.talib.TaLibUtilities;
import org.openide.nodes.AbstractNode;
/**
*
* @author joshua.taylor
*/
public class HTPhasor extends Indicator{
private static final long serialVersionUID = SerialVersion.APPVERSION;
public static final String FULL_NAME = "Hilbert Transform InPhase Quadrature";
public static final String IN_PHASE = "htdcphasorinphase";
public static final String QUADRATURE = "htdcphasorquadrature";
private IndicatorProperties properties;
//variables for TA-Lib utilization
private int lookback;
private double[] outputInPhase;
private double[] outputQuadrature;
private transient MInteger outBegIdx;
private transient MInteger outNbElement;
private transient Core core;
//variables specific to Average Directional Index
//NONE...
//the next variable is used for fast calculations
private Dataset calculatedDatasetInPhase;
private Dataset calculatedDatasetQuadrature;
public HTPhasor() {
super();
properties = new IndicatorProperties();
}
@Override
public String getName(){ return FULL_NAME;}
@Override
public String getLabel() { return properties.getLabel(); }
@Override
public String getPaintedLabel(ChartFrame cf){ return ""; }
@Override
public Indicator newInstance(){ return new HTPhasor(); }
@Override
public boolean hasZeroLine(){ return true; }
@Override
public boolean getZeroLineVisibility(){ return true; }
@Override
public Color getZeroLineColor(){ return properties.getZeroLineColor(); }
@Override
public Stroke getZeroLineStroke(){ return StrokeGenerator.getStroke(1); }
@Override
public boolean hasDelimiters(){ return true; }
@Override
public boolean getDelimitersVisibility(){ return false; }
@Override
public double[] getDelimitersValues(){ return new double[] {}; }
@Override
public Color getDelimitersColor(){ return null; }
@Override
public Stroke getDelimitersStroke(){ return null; }
@Override
public Color[] getColors(){ return new Color[] {properties.getInPhaseLineColor(), properties.getQuadratureLineColor()}; }
@Override
public boolean getMarkerVisibility(){ return properties.getMarker(); }
@Override
public AbstractNode getNode(){ return new IndicatorNode(properties); }
@Override
public LinkedHashMap getHTML(ChartFrame cf, int i)
{
LinkedHashMap ht = new LinkedHashMap();
DecimalFormat df = new DecimalFormat("#,##0.00");
double[] values = getValues(cf, i);
String[] labels = {"In Phase:", "Quadrature:"};
ht.put(getLabel(), " ");
if (values.length > 0)
{
Color[] colors = getColors();
for (int j = 0; j < values.length; j++)
{
ht.put(getFontHTML(colors[j], labels[j]), getFontHTML(colors[j], df.format(values[j])));
}
}
return ht;
}
@Override
public Range getRange(ChartFrame cf)
{
Range range = super.getRange(cf);
return range;
}
@Override
public void paint(Graphics2D g, ChartFrame cf, Rectangle bounds)
{
Dataset inPhase = visibleDataset(cf, IN_PHASE);
Dataset quadrature = visibleDataset(cf, QUADRATURE);
if (inPhase != null && quadrature != null)
{
if (maximized)
{
Range range = getRange(cf);
DefaultPainter.line(g, cf, range, bounds, inPhase, properties.getInPhaseLineColor(), properties.getInPhaseLineStroke()); // paint the signal
DefaultPainter.line(g, cf, range, bounds, quadrature, properties.getQuadratureLineColor(), properties.getQuadratureLineStroke()); // paint the MACD
}
}
}
@Override
public double[] getValues(ChartFrame cf)
{
Dataset inPhase = visibleDataset(cf, IN_PHASE);
Dataset quadrature = visibleDataset(cf, QUADRATURE);
double[] values = new double[2];
if(inPhase != null && quadrature != null){
values[0] = inPhase.getLastClose();
values[1] = quadrature.getLastClose();
}
else
return new double[] {,};
return values;
}
@Override
public double[] getValues(ChartFrame cf, int i)
{
Dataset inPhase = visibleDataset(cf, IN_PHASE);
Dataset quadrature = visibleDataset(cf, QUADRATURE);
double[] values = new double[2];
if(inPhase != null && quadrature != null){
values[0] = inPhase.getDataItem(i) != null ? inPhase.getCloseAt(i) : 0;
values[1] = quadrature.getDataItem(i) != null ? quadrature.getCloseAt(i) : 0;
}
else
return new double[] {,};
return values;
}
@Override
public void calculate()
{
Dataset initial = getDataset();
int count = 0;
if (initial != null && !initial.isEmpty())
count = initial.getItemsCount();
/**********************************************************************/
//This entire method is basically a copy/paste action into your own
//code. The only thing you have to change is the next few lines of code.
//Choose the 'lookback' method and appropriate 'calculation function'
//from TA-Lib for your needs. You'll also need to ensure you gather
//everything for your calculation as well. Everything else should stay
//basically the same
//prepare ta-lib variables
outputInPhase = new double[count];
outputQuadrature = new double[count];
outBegIdx = new MInteger();
outNbElement = new MInteger();
core = TaLibInit.getCore();//needs to be here for serialization issues
//[your specific indicator variables need to be set first]
//NONE...
//now do the calculation over the entire dataset
//[First, perform the lookback call if one exists]
//[Second, do the calculation call from TA-lib]
lookback = core.htPhasorLookback();
core.htPhasor(0, count-1, initial.getCloseValues(), outBegIdx, outNbElement, outputInPhase, outputQuadrature);
//Everything between the /***/ lines is what needs to be changed.
//Everything else remains the same. You are done with your part now.
/**********************************************************************/
//fix the output array's structure. TA-Lib does NOT match
//indicator index and dataset index automatically. That's what
//this function does for us.
outputInPhase = TaLibUtilities.fixOutputArray(outputInPhase, lookback);
outputQuadrature = TaLibUtilities.fixOutputArray(outputQuadrature, lookback);
calculatedDatasetInPhase = Dataset.EMPTY(initial.getItemsCount());
for (int i = 0; i < outputInPhase.length; i++)
calculatedDatasetInPhase.setDataItem(i, new DataItem(initial.getTimeAt(i), outputInPhase[i]));
calculatedDatasetQuadrature = Dataset.EMPTY(initial.getItemsCount());
for (int i = 0; i < outputQuadrature.length; i++)
calculatedDatasetQuadrature.setDataItem(i, new DataItem(initial.getTimeAt(i), outputQuadrature[i]));
addDataset(IN_PHASE, calculatedDatasetInPhase);
addDataset(QUADRATURE, calculatedDatasetQuadrature);
}
}