org.tentackle.fx.translate.FractionNumberStringTranslator Maven / Gradle / Ivy
/*
* Tentackle - https://tentackle.org
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.tentackle.fx.translate;
import org.tentackle.fx.FxTextComponent;
/**
* Abstract base class for fraction number translators.
*
* @author harald
* @param the model's number type
*/
public abstract class FractionNumberStringTranslator extends NumberStringTranslator {
/**
* Creates a fraction number translator.
*
* @param component the text component
*/
public FractionNumberStringTranslator(FxTextComponent component) {
super(component);
}
@Override
public boolean needsToModelTwice() {
return true;
}
@Override
public String getValidChars() {
String validChars = super.getValidChars();
String pattern = getComponent().getPattern();
if (pattern != null && pattern.indexOf('E') >= 0) {
// notice: unsigned doesn't really make sense for numbers with an exponent,
// so we don't check that here...
validChars = ".,-0123456789eE";
}
return validChars;
}
}