/*******************************************************************************
 * This file is part of logisim-evolution.
 *
 *   logisim-evolution is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   logisim-evolution 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 for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with logisim-evolution.  If not, see <http://www.gnu.org/licenses/>.
 *
 *   Original code by Carl Burch (http://www.cburch.com), 2011.
 *   Subsequent modifications by :
 *     + Haute École Spécialisée Bernoise
 *       http://www.bfh.ch
 *     + Haute École du paysage, d'ingénierie et d'architecture de Genève
 *       http://hepia.hesge.ch/
 *     + Haute École d'Ingénierie et de Gestion du Canton de Vaud
 *       http://www.heig-vd.ch/
 *   The project is currently maintained by :
 *     + REDS Institute - HEIG-VD
 *       Yverdon-les-Bains, Switzerland
 *       http://reds.heig-vd.ch
 *******************************************************************************/

package com.cburch.logisim.circuit;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.InputEvent;

import javax.swing.Icon;

import com.cburch.logisim.LogisimVersion;
import com.cburch.logisim.comp.AbstractComponentFactory;
import com.cburch.logisim.comp.Component;
import com.cburch.logisim.comp.ComponentDrawContext;
import com.cburch.logisim.data.Attribute;
import com.cburch.logisim.data.AttributeSet;
import com.cburch.logisim.data.Bounds;
import com.cburch.logisim.data.Location;
import com.cburch.logisim.instance.StdAttr;
import com.cburch.logisim.tools.key.BitWidthConfigurator;
import com.cburch.logisim.tools.key.IntegerConfigurator;
import com.cburch.logisim.tools.key.JoinedConfigurator;
import com.cburch.logisim.tools.key.KeyConfigurator;
import com.cburch.logisim.tools.key.ParallelConfigurator;
import com.cburch.logisim.util.Icons;
import com.cburch.logisim.util.StringGetter;

public class SplitterFactory extends AbstractComponentFactory {
	public static final SplitterFactory instance = new SplitterFactory();

	private static final Icon toolIcon = Icons.getIcon("splitter.gif");

	private SplitterFactory() {
	}

	@Override
	public AttributeSet createAttributeSet() {
		return new SplitterAttributes();
	}

	@Override
	public Component createComponent(Location loc, AttributeSet attrs) {
		return new Splitter(loc, attrs);
	}

	//
	// user interface methods
	//
	@Override
	public void drawGhost(ComponentDrawContext context, Color color, int x,
			int y, AttributeSet attrsBase) {
		SplitterAttributes attrs = (SplitterAttributes) attrsBase;
		context.getGraphics().setColor(color);
		Location loc = Location.create(x, y);
		if (attrs.appear == SplitterAttributes.APPEAR_LEGACY) {
			SplitterPainter.drawLegacy(context, attrs, loc);
		} else {
			SplitterPainter.drawLines(context, attrs, loc);
		}
	}

	@Override
	public Object getDefaultAttributeValue(Attribute<?> attr, LogisimVersion ver) {
		if (attr == SplitterAttributes.ATTR_APPEARANCE) {
			if (ver.compareTo(LogisimVersion.get(2, 6, 4)) < 0) {
				return SplitterAttributes.APPEAR_LEGACY;
			} else {
				return SplitterAttributes.APPEAR_LEFT;
			}
		} else if (attr instanceof SplitterAttributes.BitOutAttribute) {
			SplitterAttributes.BitOutAttribute a;
			a = (SplitterAttributes.BitOutAttribute) attr;
			return a.getDefault();
		} else {
			return super.getDefaultAttributeValue(attr, ver);
		}
	}

	@Override
	public StringGetter getDisplayGetter() {
		return Strings.getter("splitterComponent");
	}

	@Override
	public Object getFeature(Object key, AttributeSet attrs) {
		if (key == FACING_ATTRIBUTE_KEY) {
			return StdAttr.FACING;
		} else if (key == KeyConfigurator.class) {
			KeyConfigurator altConfig = ParallelConfigurator.create(
					new BitWidthConfigurator(SplitterAttributes.ATTR_WIDTH),
					new IntegerConfigurator(SplitterAttributes.ATTR_FANOUT, 1,
							32, InputEvent.ALT_DOWN_MASK));
			return JoinedConfigurator.create(new IntegerConfigurator(
					SplitterAttributes.ATTR_FANOUT, 1, 32, 0), altConfig);
		}
		return super.getFeature(key, attrs);
	}

	@Override
	public String getName() {
		return "Splitter";
	}

	@Override
	public Bounds getOffsetBounds(AttributeSet attrsBase) {
		SplitterAttributes attrs = (SplitterAttributes) attrsBase;
		int fanout = attrs.fanout;
		SplitterParameters parms = attrs.getParameters();
		int xEnd0 = parms.getEnd0X();
		int yEnd0 = parms.getEnd0Y();
		Bounds bds = Bounds.create(0, 0, 1, 1);
		bds = bds.add(xEnd0, yEnd0);
		bds = bds.add(xEnd0 + (fanout - 1) * parms.getEndToEndDeltaX(), yEnd0
				+ (fanout - 1) * parms.getEndToEndDeltaY());
		return bds;
	}

	@Override
	public boolean HDLSupportedComponent(String HDLIdentifier,
			AttributeSet attrs) {
		return true;
	}

	@Override
	public void paintIcon(ComponentDrawContext c, int x, int y,
			AttributeSet attrs) {
		Graphics g = c.getGraphics();
		if (toolIcon != null) {
			toolIcon.paintIcon(c.getDestination(), g, x + 2, y + 2);
		}
	}

}