/*
* Copyright (c) 2004-2011 Marco Maccaferri and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Marco Maccaferri - initial API and implementation
*/
package org.eclipsetrader.ui.charts.indicators;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExecutableExtension;
import org.eclipse.swt.graphics.RGB;
import org.eclipsetrader.core.charts.IDataSeries;
import org.eclipsetrader.core.charts.NumericDataSeries;
import org.eclipsetrader.ui.charts.ChartParameters;
import org.eclipsetrader.ui.charts.IChartObject;
import org.eclipsetrader.ui.charts.IChartObjectFactory;
import org.eclipsetrader.ui.charts.IChartParameters;
import org.eclipsetrader.ui.charts.ILineDecorator;
import org.eclipsetrader.ui.charts.OHLCField;
import org.eclipsetrader.ui.charts.RenderStyle;
import org.eclipsetrader.ui.internal.charts.Util;
import org.eclipsetrader.ui.internal.charts.indicators.Activator;
import org.eclipsetrader.ui.internal.charts.indicators.IGeneralPropertiesAdapter;
import com.tictactec.ta.lib.Core;
import com.tictactec.ta.lib.MInteger;
public class OBV implements IChartObjectFactory, IGeneralPropertiesAdapter, ILineDecorator, IExecutableExtension {
private String id;
private String factoryName;
private String name;
private OHLCField field = OHLCField.Close;
private RenderStyle renderStyle = RenderStyle.Line;
private RGB color;
public OBV() {
}
/* (non-Javadoc)
* @see org.eclipse.core.runtime.IExecutableExtension#setInitializationData(org.eclipse.core.runtime.IConfigurationElement, java.lang.String, java.lang.Object)
*/
@Override
public void setInitializationData(IConfigurationElement config, String propertyName, Object data) throws CoreException {
id = config.getAttribute("id");
factoryName = config.getAttribute("name");
name = config.getAttribute("name");
}
/* (non-Javadoc)
* @see org.eclipsetrader.charts.ui.indicators.IChartIndicator#getId()
*/
@Override
public String getId() {
return id;
}
/* (non-Javadoc)
* @see org.eclipsetrader.charts.ui.indicators.IChartIndicator#getName()
*/
@Override
public String getName() {
return name;
}
/* (non-Javadoc)
* @see org.eclipsetrader.ui.internal.charts.IGeneralPropertiesAdapter#setName(java.lang.String)
*/
@Override
public void setName(String name) {
this.name = name;
}
public OHLCField getField() {
return field;
}
public void setField(OHLCField field) {
this.field = field;
}
/* (non-Javadoc)
* @see org.eclipsetrader.ui.internal.charts.IGeneralPropertiesAdapter#getRenderStyle()
*/
@Override
public RenderStyle getRenderStyle() {
return renderStyle;
}
/* (non-Javadoc)
* @see org.eclipsetrader.ui.internal.charts.IGeneralPropertiesAdapter#setRenderStyle(org.eclipsetrader.ui.charts.RenderStyle)
*/
@Override
public void setRenderStyle(RenderStyle renderStyle) {
this.renderStyle = renderStyle;
}
/* (non-Javadoc)
* @see org.eclipsetrader.ui.charts.ILineDecorator#getColor()
*/
@Override
public RGB getColor() {
return color;
}
/* (non-Javadoc)
* @see org.eclipsetrader.ui.charts.ILineDecorator#setColor(org.eclipse.swt.graphics.RGB)
*/
@Override
public void setColor(RGB color) {
this.color = color;
}
/* (non-Javadoc)
* @see org.eclipsetrader.ui.charts.IChartObjectFactory#createObject(org.eclipsetrader.core.charts.IDataSeries)
*/
@Override
public IChartObject createObject(IDataSeries source) {
if (source == null) {
return null;
}
IAdaptable[] values = source.getValues();
Core core = Activator.getDefault() != null ? Activator.getDefault().getCore() : new Core();
int lookback = core.obvLookback();
if (values.length < lookback) {
return null;
}
int startIdx = 0;
int endIdx = values.length - 1;
double[] inReal = Util.getValuesForField(values, field);
double[] inVolume = Util.getValuesForField(values, OHLCField.Volume);
MInteger outBegIdx = new MInteger();
MInteger outNbElement = new MInteger();
double[] outReal = new double[values.length - lookback];
core.obv(startIdx, endIdx, inReal, inVolume, outBegIdx, outNbElement, outReal);
NumericDataSeries result = new NumericDataSeries(getName(), outReal, source);
return Util.createLineChartObject(result, renderStyle, color);
}
/* (non-Javadoc)
* @see org.eclipsetrader.ui.charts.IChartObjectFactory#getParameters()
*/
@Override
public IChartParameters getParameters() {
ChartParameters parameters = new ChartParameters();
if (!factoryName.equals(name)) {
parameters.setParameter("name", name);
}
parameters.setParameter("field", field.getName());
parameters.setParameter("style", renderStyle.getName());
if (color != null) {
parameters.setParameter("color", color);
}
return parameters;
}
/* (non-Javadoc)
* @see org.eclipsetrader.ui.charts.IChartObjectFactory#setParameters(org.eclipsetrader.ui.charts.IChartParameters)
*/
@Override
public void setParameters(IChartParameters parameters) {
name = parameters.hasParameter("name") ? parameters.getString("name") : factoryName;
field = parameters.hasParameter("field") ? OHLCField.getFromName(parameters.getString("field")) : OHLCField.Close;
renderStyle = parameters.hasParameter("style") ? RenderStyle.getStyleFromName(parameters.getString("style")) : RenderStyle.Line;
color = parameters.getColor("color");
}
}