/*
 * Copyright (c) 2008, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */
package com.sun.hotspot.igv.graph;

import com.sun.hotspot.igv.data.InputNode;
import com.sun.hotspot.igv.data.Properties;
import com.sun.hotspot.igv.data.Source;
import com.sun.hotspot.igv.layout.Port;
import com.sun.hotspot.igv.layout.Vertex;
import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Comparator;

/**
 * 
 * @author Thomas Wuerthinger
 */
public abstract class Slot implements Port, Source.Provider, Properties.Provider {

	private int wantedIndex;
	private Source source;
	protected List<Connection> connections;
	private InputNode associatedNode;
	private Color color;
	private String text;
	private String shortName;
	private Figure figure;

	protected Slot(Figure figure, int wantedIndex) {
		this.figure = figure;
		connections = new ArrayList<Connection>(2);
		source = new Source();
		this.wantedIndex = wantedIndex;
		text = "";
		shortName = "";
		assert figure != null;
	}

	public Properties getProperties() {
		Properties p = new Properties();
		if (source.getSourceNodes().size() > 0) {
			for (InputNode n : source.getSourceNodes()) {
				p.add(n.getProperties());
			}
		} else {
			p.setProperty("name", "Slot");
			p.setProperty("figure", figure.getProperties().get("name"));
			p.setProperty("connectionCount", Integer.toString(connections.size()));
		}
		return p;
	}
	public static final Comparator<Slot> slotIndexComparator = new Comparator<Slot>() {

		public int compare(Slot o1, Slot o2) {
			return o1.wantedIndex - o2.wantedIndex;
		}
	};
	public static final Comparator<Slot> slotFigureComparator = new Comparator<Slot>() {

		public int compare(Slot o1, Slot o2) {
			return o1.figure.getId() - o2.figure.getId();
		}
	};

	public InputNode getAssociatedNode() {
		return associatedNode;
	}

	public void setAssociatedNode(InputNode node) {
		associatedNode = node;
	}

	public int getWidth() {
		if (shortName == null || shortName.length() <= 1) {
			return Figure.SLOT_WIDTH;
		} else {
			BufferedImage image = new BufferedImage(1, 1, BufferedImage.TYPE_INT_RGB);
			Graphics g = image.getGraphics();
			g.setFont(figure.getDiagram().getSlotFont().deriveFont(Font.BOLD));
			FontMetrics metrics = g.getFontMetrics();
			return Math.max(Figure.SLOT_WIDTH, metrics.stringWidth(shortName) + 6);
		}
	}

	public int getWantedIndex() {
		return wantedIndex;
	}

	public Source getSource() {
		return source;
	}

	public String getText() {
		return text;
	}

	public void setShortName(String s) {
		assert s != null;
//        assert s.length() <= 2;
		this.shortName = s;

	}

	public String getShortName() {
		return shortName;
	}

	public String getToolTipText() {
		StringBuilder sb = new StringBuilder();
		sb.append(text);

		for (InputNode n : getSource().getSourceNodes()) {
			sb.append("Node (ID=" + n.getId() + "): " + n.getProperties().get("name"));
			sb.append("<br>");
		}

		return sb.toString();
	}

	public boolean shouldShowName() {
		return getShortName() != null && getShortName().length() > 0;
	}

	public void setText(String s) {
		if (s == null) {
			s = "";
		}
		this.text = s;
	}

	public Figure getFigure() {
		assert figure != null;
		return figure;
	}

	public Color getColor() {
		return this.color;
	}

	public void setColor(Color c) {
		color = c;
	}

	public List<Connection> getConnections() {
		return Collections.unmodifiableList(connections);
	}

	public void removeAllConnections() {
		List<Connection> connectionsCopy = new ArrayList<Connection>(this.connections);
		for (Connection c : connectionsCopy) {
			c.remove();
		}
	}

	public Vertex getVertex() {
		return figure;
	}

	public abstract int getPosition();

	public abstract void setPosition(int position);
}