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/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: SimpleWirer.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.routing;
import com.sun.electric.database.EditingPreferences;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import com.sun.electric.database.geometry.PolyMerge;
import com.sun.electric.database.hierarchy.Cell;
/**
* A Simple wiring tool for the user to draw wires.
*/
public class SimpleWirer extends InteractiveRouter {
public SimpleWirer(EditingPreferences ep) {
super(ep);
}
/* ----------------------- Router Methods ------------------------------------- */
public String toString() { return "SimpleWirer"; }
protected boolean planRoute(Route route, Cell cell, RouteElementPort endRE,
Point2D startLoc, Point2D endLoc, Point2D clicked, PolyMerge stayInside, VerticalRoute vroute,
boolean contactsOnEndObj, boolean extendArcHead, boolean extendArcTail, Rectangle2D contactArea) {
/*
RouteElementPort startRE = route.getEnd();
// find port protos of startRE and endRE, and find connecting arc type
PortProto startPort = startRE.getPortProto();
PortProto endPort = endRE.getPortProto();
ArcProto useArc = getArcToUse(startPort, endPort);
// first, find location of corner of L if routing will be an L shape
Point2D cornerLoc = null;
// see if it fits the angle increment so that a single arc can be drawn
boolean singleArc = false;
if (useArc != null)
{
int inc = 10*useArc.getAngleIncrement();
if (inc == 0) singleArc = true; else
{
int ang = GenMath.figureAngle(startLoc, endLoc);
if ((ang % inc) == 0) singleArc = true;
}
} else
{
// no arc specified: allow direct if manhattan
if (startLoc.getX() == endLoc.getX() || startLoc.getY() == endLoc.getY()) singleArc = true;
}
if (contactArea != null) {
cornerLoc = new Point2D.Double(contactArea.getCenterX(), contactArea.getCenterY());
} else {
if (singleArc)
{
// single arc
if (contactsOnEndObj)
cornerLoc = endLoc;
else
cornerLoc = startLoc;
} else
{
Point2D pin1 = new Point2D.Double(startLoc.getX(), endLoc.getY());
Point2D pin2 = new Point2D.Double(endLoc.getX(), startLoc.getY());
// find which pin to use
int clickedQuad = findQuadrant(endLoc, clicked);
int pin1Quad = findQuadrant(endLoc, pin1);
int pin2Quad = findQuadrant(endLoc, pin2);
int oppositeQuad = (clickedQuad + 2) % 4;
// presume pin1 by default
cornerLoc = pin1;
if (pin2Quad == clickedQuad)
{
cornerLoc = pin2; // same quad as pin2, use pin2
} else if (pin1Quad == clickedQuad)
{
cornerLoc = pin1; // same quad as pin1, use pin1
} else if (pin1Quad == oppositeQuad)
{
cornerLoc = pin2; // near to pin2 quad, use pin2
}
if (stayInside != null && useArc != null)
{
// make sure the bend stays inside of the merge area
double pinSize = useArc.getDefaultLambdaBaseWidth();
Layer pinLayer = useArc.getLayerIterator().next();
Rectangle2D pin1Rect = new Rectangle2D.Double(pin1.getX()-pinSize/2, pin1.getY()-pinSize/2, pinSize, pinSize);
Rectangle2D pin2Rect = new Rectangle2D.Double(pin2.getX()-pinSize/2, pin2.getY()-pinSize/2, pinSize, pinSize);
if (stayInside.contains(pinLayer, pin1Rect)) cornerLoc = pin1; else
if (stayInside.contains(pinLayer, pin2Rect)) cornerLoc = pin2;
}
}
}
int startAngle = GenMath.figureAngle(startLoc, cornerLoc);
int endAngle = GenMath.figureAngle(endLoc, cornerLoc);
// never use universal arcs unless the user has selected them
if (useArc == null) {
// use universal if selected
if (User.getUserTool().getCurrentArcProto() == Generic.tech().universal_arc)
useArc = Generic.tech().universal_arc;
else {
route.add(endRE);
route.setEnd(endRE);
vroute.buildRoute(route, cell, startRE, endRE, startLoc, endLoc, cornerLoc, stayInside, contactArea);
return true;
}
}
route.add(endRE);
route.setEnd(endRE);
// startRE and endRE can be connected with an arc. If one of them is a bisectArcPin,
// and can be replaced by the other, just replace it and we're done.
if (route.replaceBisectPin(startRE, endRE)) {
route.remove(startRE);
return true;
} else if (route.replaceBisectPin(endRE, startRE)) {
route.remove(endRE);
route.setEnd(startRE);
return true;
}
// find arc width to use
double width = getArcWidthToUse(startRE, useArc, startAngle);
double width2 = getArcWidthToUse(endRE, useArc, endAngle);
if (width2 > width) width = width2;
// see if we should only draw a single arc
if (singleArc) {
// draw single
RouteElement arcRE = RouteElementArc.newArc(cell, useArc, width, startRE, endRE,
startLoc, endLoc, null, null, null, extendArcHead, extendArcTail, stayInside);
route.add(arcRE);
return true;
}
// this router only draws horizontal and vertical arcs
// if either X or Y coords are the same, create a single arc
// boolean newV = DBMath.areEquals(startLoc.getX(), endLoc.getX()) || DBMath.areEquals(startLoc.getY(), endLoc.getY());
// boolean oldV = (startLoc.getX() == endLoc.getX() || startLoc.getY() == endLoc.getY());
// if (newV != oldV)
// System.out.println("Precision problem in SimpleWireer");
if (DBMath.areEquals(startLoc.getX(), endLoc.getX()) || DBMath.areEquals(startLoc.getY(), endLoc.getY()))
{
// single arc
RouteElement arcRE = RouteElementArc.newArc(cell, useArc, width, startRE, endRE,
startLoc, endLoc, null, null, null, extendArcHead, extendArcTail, stayInside);
route.add(arcRE);
} else {
// otherwise, create new pin and two arcs for corner
// make new pin of arc type
PrimitiveNode pn = useArc.findOverridablePinProto();
SizeOffset so = pn.getProtoSizeOffset();
double defwidth = pn.getDefWidth()-so.getHighXOffset()-so.getLowXOffset();
double defheight = pn.getDefHeight()-so.getHighYOffset()-so.getLowYOffset();
RouteElementPort pinRE = RouteElementPort.newNode(cell, pn, pn.getPort(0), cornerLoc,
defwidth, defheight);
RouteElement arcRE1 = RouteElementArc.newArc(cell, useArc, width, startRE, pinRE,
startLoc, cornerLoc, null, null, null, extendArcHead, true, stayInside);
RouteElement arcRE2 = RouteElementArc.newArc(cell, useArc, width, pinRE, endRE,
cornerLoc, endLoc, null, null, null, true, extendArcTail, stayInside);
route.add(pinRE);
route.add(arcRE1);
route.add(arcRE2);
}
*/
return true;
}
}
