/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: Utils.java
*
* Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
*
* Electric(tm) 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.
*
* Electric(tm) 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 Electric(tm); see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, Mass 02111-1307, USA.
*/
package com.sun.electric.tool.generator.flag;
import java.awt.geom.Rectangle2D;
import java.util.Iterator;
import com.sun.electric.database.hierarchy.Cell;
import com.sun.electric.database.prototype.PortCharacteristic;
import com.sun.electric.database.prototype.PortProto;
import com.sun.electric.database.topology.NodeInst;
import com.sun.electric.database.topology.PortInst;
import com.sun.electric.tool.generator.flag.router.ToConnect;
public class Utils {
/** Warning: this is global data and these are global methods. There
* is no other way of allowing static methods to use TaskPrinter */
private static TaskPrinter taskPrinter = new TaskPrinter();
public static void prln(String s) {taskPrinter.prln(s);}
public static void pr(String s) {taskPrinter.pr(s);}
public static void error(boolean cond, String msg) {taskPrinter.error(cond, msg);}
public static void saveTaskDescription(String msg) {taskPrinter.saveTaskDescription(msg);}
public static void clearTaskDescription() {taskPrinter.clearTaskDescription();}
public static boolean isPwr(PortProto pp) {
return pp.getCharacteristic()==PortCharacteristic.PWR;
}
public static boolean isPwr(PortInst pi) {
return isPwr(pi.getPortProto());
}
public static boolean isGnd(PortProto pp) {
return pp.getCharacteristic()==PortCharacteristic.GND;
}
public static boolean isGnd(PortInst pi) {
return isGnd(pi.getPortProto());
}
public static boolean isPwrGnd(PortProto pp) {
return isPwr(pp) || isGnd(pp);
}
public static boolean isPwrGnd(PortInst pi) {
return isPwr(pi) || isGnd(pi);
}
public static boolean isPwrGnd(ToConnect tc) {
for (PortInst pi : tc.getPortInsts()) {
if (isPwrGnd(pi)) return true;
}
return false;
}
public static boolean onTop(PortInst pi, Rectangle2D bounds, double fudge) {
double y = pi.getCenter().getY();
return Utils.nextToBoundary(y, bounds.getMaxY(), fudge);
}
public static boolean onBottom(PortInst pi, Rectangle2D bounds, double fudge) {
double y = pi.getCenter().getY();
return Utils.nextToBoundary(y, bounds.getMinY(), fudge);
}
public static boolean onTopOrBottom(PortInst pi, Rectangle2D bounds, double fudge) {
return onTop(pi, bounds, fudge) || onBottom(pi, bounds, fudge);
}
public static boolean onLeftOrRight(PortInst pi, Rectangle2D bounds, double fudge) {
double x = pi.getCenter().getX();
return Utils.nextToBoundary(x, bounds.getMinX(), fudge) ||
Utils.nextToBoundary(x, bounds.getMaxX(), fudge);
}
public static boolean onBounds(PortInst pi, Rectangle2D bounds, double fudge) {
return onTopOrBottom(pi, bounds, fudge) ||
onLeftOrRight(pi, bounds, fudge);
}
public static boolean nextToBoundary(double coord, double boundCoord, double fudge) {
return Math.abs(coord-boundCoord) <= fudge;
}
public static Rectangle2D findBounds(Cell c) {
double minX, minY, maxX, maxY;
minX = minY = Double.MAX_VALUE;
maxX = maxY = -Double.MAX_VALUE;
for (Iterator<NodeInst> niIt=c.getNodes(); niIt.hasNext();) {
NodeInst ni = niIt.next();
if (!ni.isCellInstance()) continue;
Rectangle2D bounds = ni.findEssentialBounds();
error(bounds==null, "Layout Cell is missing essential bounds: "+
ni.getProto().describe(false));
minX = Math.min(minX, bounds.getMinX());
maxX = Math.max(maxX, bounds.getMaxX());
minY = Math.min(minY, bounds.getMinY());
maxY = Math.max(maxY, bounds.getMaxY());
}
if (minX==Double.MAX_VALUE) {
// empty Cell. Return a zero sized rectangle around origin
return new Rectangle2D.Double(0,0,0,0);
} else {
return new Rectangle2D.Double(minX, minY, maxX-minX, maxY-minY);
}
}
public static void printStackTrace(Throwable th) {
boolean first = true;
for (; th!=null; th=th.getCause()) {
if (!first) pr("Caused by: ");
first = false;
prln(th.toString());
for (StackTraceElement elem : th.getStackTrace()) {
prln(" "+elem.toString());
}
}
}
}