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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.substitute;
import java.util.StringTokenizer;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* Encapsulates a range of font weight values
*/
public class FontWeightRange {
/** logging instance */
protected static Log log = LogFactory.getLog("org.apache.fop.render.fonts");
/**
* Returns an <code>FontWeightRange</code> object holding the
* range values of the specified <code>String</code>.
*
* @param weightRangeString the value range string
* @return an <code>FontWeightRange</code> object holding the value ranges
*/
public static FontWeightRange valueOf(String weightRangeString) {
StringTokenizer rangeToken = new StringTokenizer(weightRangeString, "..");
FontWeightRange weightRange = null;
if (rangeToken.countTokens() == 2) {
String weightString = rangeToken.nextToken().trim();
try {
int start = Integer.parseInt(weightString);
if (start % 100 != 0) {
log.error("font-weight start range is not a multiple of 100");
}
int end = Integer.parseInt(rangeToken.nextToken());
if (end % 100 != 0) {
log.error("font-weight end range is not a multiple of 100");
}
if (start <= end) {
weightRange = new FontWeightRange(start, end);
} else {
log.error("font-weight start range is greater than end range");
}
} catch (NumberFormatException e) {
log.error("invalid font-weight value " + weightString);
}
}
return weightRange;
}
/** the start range */
private int start;
/** the end range */
private int end;
/**
* Main constructor
* @param start the start value range
* @param end the end value range
*/
public FontWeightRange(int start, int end) {
this.start = start;
this.end = end;
}
/**
* Returns true if the given integer value is within this integer range
* @param value the integer value
* @return true if the given integer value is within this integer range
*/
public boolean isWithinRange(int value) {
return (value >= start && value <= end);
}
/**
* {@inheritDoc}
*/
public String toString() {
return start + ".." + end;
}
/**
* @return an integer array containing the weight ranges
*/
public int[] toArray() {
int cnt = 0;
for (int i = start; i <= end; i += 100) {
cnt++;
}
int[] range = new int[cnt];
for (int i = 0; i < cnt; i++) {
range[i] = start + (i * 100);
}
return range;
}
}
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