/*******************************************************************************

 * Copyright (c) 2012 Red Hat, Inc.

 * 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:

 *    Camilo Bernal <cabernal@redhat.com> - Initial Implementation.

 *******************************************************************************/

package org.eclipse.linuxtools.internal.perf.ui;

import org.eclipse.jface.resource.StringConverter;

import org.eclipse.jface.viewers.ILabelProviderListener;

import org.eclipse.jface.viewers.ITableColorProvider;

import org.eclipse.jface.viewers.ITableLabelProvider;

import org.eclipse.linuxtools.internal.perf.model.PMSymbol;

import org.eclipse.linuxtools.internal.perf.model.PMSymbolMatch;

import org.eclipse.swt.SWT;

import org.eclipse.swt.graphics.Color;

import org.eclipse.swt.graphics.Image;

import org.eclipse.swt.widgets.Display;

class PerfDiffLabelProvider implements ITableLabelProvider, ITableColorProvider {

	public static final String COLOR_RED = "75, 200, 75";

	public static final String COLOR_GREEN = "200, 75, 75";

	@Override

	public Color getBackground(Object element, int columnIndex) {

		String result = ((PMSymbolMatch) element).getResult();

		switch (columnIndex) {

		case 3:

			try {

				float resFloat = Float.parseFloat(result);

				if (resFloat < 0) {

					return new Color(Display.getCurrent(),

							StringConverter.asRGB(COLOR_RED));

				} else if (resFloat == 0) {

					return Display.getCurrent().getSystemColor(SWT.COLOR_WHITE);

				} else {

					return new Color(Display.getCurrent(),

							StringConverter.asRGB(COLOR_GREEN));

				}

			} catch (Exception ex) {

				// result is a character string

				return Display.getCurrent().getSystemColor(SWT.COLOR_WHITE);

			}

		default:

			return Display.getCurrent().getSystemColor(SWT.COLOR_WHITE);

		}

	}

	@Override

	public String getColumnText(Object element, int columnIndex) {

		PMSymbolMatch p = (PMSymbolMatch) element;

		switch (columnIndex) {

		// function column

		case 0:

			return p.getName();

		// new column

		case 1:

			PMSymbol fresh = p.getFresh();

			return (fresh == null) ? "-" : String.valueOf(fresh.getPercent());

		// old column

		case 2:

			PMSymbol stale = p.getStale();

			return (stale == null) ? "-" : String.valueOf(stale.getPercent());

		// result column

		case 3:

			String result = p.getResult();

			try {

				Float.parseFloat(result);

				return result + "%";

			} catch (Exception e) {

				return result;

			}

		// event column

		case 4:

			return p.getEvent();

		case 5:

			return "";

		default:

			throw new RuntimeException("Something went wrong");

		}

	}

	@Override

	public void addListener(ILabelProviderListener listener) {

	}

	@Override

	public void dispose() {

	}

	@Override

	public boolean isLabelProperty(Object element, String property) {

		return false;

	}

	@Override

	public void removeListener(ILabelProviderListener listener) {

	}

	@Override

	public Color getForeground(Object element, int columnIndex) {

		return null;

	}

	@Override

	public Image getColumnImage(Object element, int columnIndex) {

		return null;

	}

}