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/*
* $Id$
* Copyright (C) 2001-2002 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/
package org.apache.fop.area;
/**
* This class holds the resolved (as mpoints) form of a LengthRange or
* Space type Property value.
* MinOptMax values are used during layout calculations. The instance
* variables are package visible.
*/
public class MinOptMax implements java.io.Serializable, Cloneable {
/** Publicly visible min(imum), opt(imum) and max(imum) values.*/
public int min;
public int opt;
public int max;
public MinOptMax() {
this(0);
}
public MinOptMax(int val) {
this(val, val, val);
}
public MinOptMax(int min, int opt, int max) {
this.min = min;
this.opt = opt;
this.max = max;
}
public Object clone() {
try {
return super.clone();
} catch (CloneNotSupportedException ex) {
// SHOULD NEVER OCCUR - all members are primitive types!
return null;
}
}
public static MinOptMax subtract(MinOptMax op1, MinOptMax op2) {
return new MinOptMax(op1.min - op2.max, op1.opt - op2.opt,
op1.max - op2.min);
}
public static MinOptMax add(MinOptMax op1, MinOptMax op2) {
return new MinOptMax(op1.min + op2.min, op1.opt + op2.opt,
op1.max + op2.max);
}
public static MinOptMax multiply(MinOptMax op1, double mult) {
return new MinOptMax((int)(op1.min * mult),
(int)(op1.opt * mult), (int)(op1.max * mult));
}
public void add(MinOptMax op) {
min += op.min;
opt += op.opt;
max += op.max;
}
public void subtract(MinOptMax op) {
min -= op.max;
opt -= op.opt;
max -= op.min;
}
}
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