net.sourceforge.eclipsetrader.trading.portfolio.PortfolioLabelProvider.java Source code

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Here is the source code for net.sourceforge.eclipsetrader.trading.portfolio.PortfolioLabelProvider.java

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/*
 * Copyright (c) 2004-2007 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 net.sourceforge.eclipsetrader.trading.portfolio;

import java.text.NumberFormat;

import net.sourceforge.eclipsetrader.core.db.PortfolioPosition;
import net.sourceforge.eclipsetrader.core.db.feed.Quote;

import org.eclipse.jface.viewers.IFontProvider;
import org.eclipse.jface.viewers.ITableColorProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;

public class PortfolioLabelProvider extends LabelProvider
        implements ITableLabelProvider, ITableColorProvider, IFontProvider {
    NumberFormat numberFormat = NumberFormat.getInstance();
    NumberFormat priceFormat = NumberFormat.getInstance();
    NumberFormat valueFormat = NumberFormat.getInstance();
    NumberFormat percentageFormat = NumberFormat.getInstance();
    Color negativeForeground;
    Color positiveForeground;
    Font boldFont;

    public PortfolioLabelProvider() {
        numberFormat.setGroupingUsed(true);
        numberFormat.setMinimumIntegerDigits(1);
        numberFormat.setMinimumFractionDigits(0);
        numberFormat.setMaximumFractionDigits(0);

        priceFormat.setGroupingUsed(true);
        priceFormat.setMinimumIntegerDigits(1);
        priceFormat.setMinimumFractionDigits(4);
        priceFormat.setMaximumFractionDigits(4);

        percentageFormat.setGroupingUsed(true);
        percentageFormat.setMinimumIntegerDigits(1);
        percentageFormat.setMinimumFractionDigits(2);
        percentageFormat.setMaximumFractionDigits(2);

        valueFormat.setGroupingUsed(true);
        valueFormat.setMinimumIntegerDigits(1);
        valueFormat.setMinimumFractionDigits(2);
        valueFormat.setMaximumFractionDigits(2);
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.LabelProvider#getText(java.lang.Object)
     */
    public String getText(Object element) {
        if (element instanceof AccountGroupTreeNode)
            return ((AccountGroupTreeNode) element).value.getDescription();
        if (element instanceof AccountTreeNode)
            return ((AccountTreeNode) element).value.getDescription();
        if (element instanceof PositionTreeNode)
            return ((PositionTreeNode) element).value.getSecurity().getDescription();
        return null;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnImage(java.lang.Object, int)
     */
    public Image getColumnImage(Object element, int columnIndex) {
        return null;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnText(java.lang.Object, int)
     */
    public String getColumnText(Object element, int columnIndex) {
        if (element instanceof AccountGroupTreeNode) {
            if (columnIndex == 0)
                return ((AccountGroupTreeNode) element).value.getDescription();
        }
        if (element instanceof AccountTreeNode) {
            if (columnIndex == 0)
                return ((AccountTreeNode) element).value.getDescription();
        }
        if (element instanceof PositionTreeNode) {
            PortfolioPosition position = ((PositionTreeNode) element).value;
            Quote quote = ((PositionTreeNode) element).quote;
            switch (columnIndex) {
            case 0:
                return position.getSecurity().toString();
            case 1:
                return numberFormat.format(position.getQuantity());
            case 2:
                return priceFormat.format(position.getPrice());
            case 3:
                return quote == null ? "" : priceFormat.format(quote.getLast());
            case 4:
                return quote == null ? "" : valueFormat.format(position.getMarketValue());
            case 5: {
                double gain = (position.getQuantity() > 0) ? position.getMarketValue() - position.getValue()
                        : position.getValue() - position.getMarketValue();
                String s1 = valueFormat.format(gain);
                String s2 = percentageFormat.format(gain / position.getValue() * 100.0);
                if (gain > 0)
                    return "+" + s1 + " (+" + s2 + "%)";
                else
                    return s1 + " (" + s2 + "%)";
            }
            }
        }
        return null;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.ITableColorProvider#getBackground(java.lang.Object, int)
     */
    public Color getBackground(Object element, int columnIndex) {
        return null;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.ITableColorProvider#getForeground(java.lang.Object, int)
     */
    public Color getForeground(Object element, int columnIndex) {
        if (element instanceof PositionTreeNode) {
            PortfolioPosition position = ((PositionTreeNode) element).value;
            if (columnIndex == 5) {
                double gain = (position.getQuantity() > 0) ? position.getMarketValue() - position.getValue()
                        : position.getValue() - position.getMarketValue();
                if (gain > 0)
                    return positiveForeground;
                else if (gain < 0)
                    return negativeForeground;
            }
        }
        return null;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.IFontProvider#getFont(java.lang.Object)
     */
    public Font getFont(Object element) {
        if (element instanceof AccountGroupTreeNode || element instanceof AccountTreeNode)
            return boldFont;
        return null;
    }
}