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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Id$ */
package org.apache.fop.fonts;
/**
* A segment in a cmap table of format 4. Unicode code points between
* {@link #getUnicodeStart()} and {@link #getUnicodeEnd()} map to contiguous glyph indices
* starting from {@link #getGlyphStartIndex()}.
*/
public final class CMapSegment {
private final int unicodeStart;
private final int unicodeEnd;
private final int glyphStartIndex;
/**
* Creates a new segment.
*
* @param unicodeStart Unicode start index
* @param unicodeEnd Unicode end index
* @param glyphStartIndex glyph start index
*/
public CMapSegment(int unicodeStart, int unicodeEnd, int glyphStartIndex) {
this.unicodeStart = unicodeStart;
this.unicodeEnd = unicodeEnd;
this.glyphStartIndex = glyphStartIndex;
}
@Override
public int hashCode() {
int hc = 17;
hc = 31 * hc + unicodeStart;
hc = 31 * hc + unicodeEnd;
hc = 31 * hc + glyphStartIndex;
return hc;
}
@Override
public boolean equals(Object o) {
if (o instanceof CMapSegment) {
CMapSegment ce = (CMapSegment) o;
return ce.unicodeStart == this.unicodeStart
&& ce.unicodeEnd == this.unicodeEnd
&& ce.glyphStartIndex == this.glyphStartIndex;
}
return false;
}
/**
* Returns the unicodeStart.
* @return the Unicode start index
*/
public int getUnicodeStart() {
return unicodeStart;
}
/**
* Returns the unicodeEnd.
* @return the Unicode end index
*/
public int getUnicodeEnd() {
return unicodeEnd;
}
/**
* Returns the glyphStartIndex.
* @return the glyph start index
*/
public int getGlyphStartIndex() {
return glyphStartIndex;
}
/** {@inheritDoc} */
@Override
public String toString() {
StringBuilder sb = new StringBuilder("CMapSegment: ");
sb.append("{ UC[");
sb.append(unicodeStart);
sb.append(',');
sb.append(unicodeEnd);
sb.append("]: GC[");
sb.append(glyphStartIndex);
sb.append(',');
sb.append(glyphStartIndex + (unicodeEnd - unicodeStart));
sb.append("] }");
return sb.toString();
}
}
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