/*
* Copyright (c) 1998, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.awt.geom;
final class Edge {
static final int INIT_PARTS = 4;
static final int GROW_PARTS = 10;
Curve curve;
int ctag;
int etag;
double activey;
int equivalence;
public Edge(Curve c, int ctag) {
this(c, ctag, AreaOp.ETAG_IGNORE);
}
public Edge(Curve c, int ctag, int etag) {
this.curve = c;
this.ctag = ctag;
this.etag = etag;
}
public Curve getCurve() {
return curve;
}
public int getCurveTag() {
return ctag;
}
public int getEdgeTag() {
return etag;
}
public void setEdgeTag(int etag) {
this.etag = etag;
}
public int getEquivalence() {
return equivalence;
}
public void setEquivalence(int eq) {
equivalence = eq;
}
private Edge lastEdge;
private int lastResult;
private double lastLimit;
public int compareTo(Edge other, double[] yrange) {
if (other == lastEdge && yrange[0] < lastLimit) {
if (yrange[1] > lastLimit) {
yrange[1] = lastLimit;
}
return lastResult;
}
if (this == other.lastEdge && yrange[0] < other.lastLimit) {
if (yrange[1] > other.lastLimit) {
yrange[1] = other.lastLimit;
}
return 0-other.lastResult;
}
//long start = System.currentTimeMillis();
int ret = curve.compareTo(other.curve, yrange);
//long end = System.currentTimeMillis();
/*
System.out.println("compare: "+
((System.identityHashCode(this) <
System.identityHashCode(other))
? this+" to "+other
: other+" to "+this)+
" == "+ret+" at "+yrange[1]+
" in "+(end-start)+"ms");
*/
lastEdge = other;
lastLimit = yrange[1];
lastResult = ret;
return ret;
}
public void record(double yend, int etag) {
this.activey = yend;
this.etag = etag;
}
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