/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: VddGndStraps.java
*
* Copyright (c) 2006 Sun Microsystems and Static Free Software
*
* 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.layout.fill;
import com.sun.electric.technology.ArcProto;
import com.sun.electric.technology.PrimitiveNode;
import com.sun.electric.tool.generator.layout.TechType;
import com.sun.electric.database.topology.PortInst;
/** Give access to the metal straps inside a MetalLayer or CapLayer */
public abstract class VddGndStraps {
public static ArcProto[] METALS; // =
// {null, Tech.m1(), Tech.m2(), Tech.m3(), Tech.m4(), Tech.m5(), Tech.m6(), Tech.m7(), Tech.m8(), Tech.m9()};
public static PrimitiveNode[] PINS; // =
// {null, Tech.m1pin(), Tech.m2pin(), Tech.m3pin(), Tech.m4pin(), Tech.m5pin(), Tech.m6pin(),
// Tech.m7pin(), Tech.m8pin(), Tech.m9pin()};
// Defined here so sequence with PINS is kept aligned
public static PrimitiveNode[] fillContacts; // = {null, null, Tech.m2m3(), Tech.m3m4(), Tech.m4m5(), Tech.m5m6()};
protected TechType tech;
VddGndStraps(TechType t)
{
tech = t;
METALS = new ArcProto[]{null, tech.m1(), tech.m2(), tech.m3(), tech.m4(), tech.m5(), tech.m6(),
tech.m7(), tech.m8(), tech.m9()}; // 10 for now
PINS = new PrimitiveNode[]{null, tech.m1pin(), tech.m2pin(), tech.m3pin(), tech.m4pin(), tech.m5pin(), tech.m6pin(),
tech.m7pin(), tech.m8pin(), tech.m9pin()};
fillContacts = new PrimitiveNode[] {null, null, tech.m2m3(), tech.m3m4(), tech.m4m5(), tech.m5m6()};
}
/** are metal straps horizontal? */ abstract boolean isHorizontal();
/** how many Vdd straps? */ abstract int numVdd();
/** get nth Vdd strap */ abstract PortInst getVdd(int n, int pos);
/** if horizontal get Y else get X */ abstract double getVddCenter(int n);
/** how wide is nth Vdd metal strap */ abstract double getVddWidth(int n);
/** how many Gnd straps? */ abstract int numGnd();
/** get nth Gnd strap */ abstract PortInst getGnd(int n, int pos);
/** if horizontal get Y else X */ abstract double getGndCenter(int n);
/** how wide is nth Gnd strap? */ abstract double getGndWidth(int n);
abstract PrimitiveNode getPinType();
abstract ArcProto getMetalType();
abstract double getCellWidth();
abstract double getCellHeight();
abstract boolean addExtraArc(); /** To create an export on new pin connected with a zero length arc */
}