Mega Code Archive
Html Dimensions
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/**
* Licensed under the Common Development and Distribution License,
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.sun.com/cddl/
*
* 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.
*/
// Revised from ajax4jsf
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.text.ParseException;
import java.util.regex.Pattern;
public class HtmlDimensions {
private static final Pattern PATTERN_NUMERIC = Pattern.compile("^[+-]?\\d+(\\.\\d+)?$");
private static final Pattern PATTERN_PX = Pattern.compile("^[+-]?\\d+(\\.\\d+)?px$");
private static final Pattern PATTERN_PCT = Pattern.compile("^[+-]?\\d+(\\.\\d+)?%$");
private static final NumberFormat numericFormat = new DecimalFormat();
private static final DecimalFormat pxFormat = new DecimalFormat();
private static final NumberFormat pctFormat = NumberFormat.getPercentInstance();
static{
pxFormat.setPositiveSuffix("px");
pxFormat.setNegativeSuffix("px");
}
public static Double decode(String size){
// TODO - handle px,ex,pt enc suffixes.
double d = 0;
try {
if(size != null){
if(PATTERN_NUMERIC.matcher(size).matches()){
synchronized(numericFormat){
d = numericFormat.parse(size).doubleValue();
}
} else if(PATTERN_PX.matcher(size).matches()){
synchronized (pxFormat) {
d = pxFormat.parse(size).doubleValue();
}
} else if(PATTERN_PCT.matcher(size).matches()){
synchronized (pctFormat) {
d = pctFormat.parse(size).doubleValue();
}
}
}
} catch (ParseException e) {
throw new IllegalArgumentException(e.getMessage());
}
return new Double(d);
}
public static String formatPx(Double value){
return (value.intValue() + "px");
}
public static String formatPct(Double value){
String v = "";
synchronized (pctFormat) {
v = pctFormat.format(value.doubleValue());
}
return v;
}
}
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