ExpressionInput.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.turro.zkoss.input;
 
import org.turro.script.Script;
import org.zkoss.zk.ui.WrongValueException;
import org.zkoss.zul.Textbox;
 
public class ExpressionInput extends Textbox {
 
  private String format;
 
  public Object getNumber() throws WrongValueException {
    return new Script().evalToDouble(getText());
  }
 
  public Object getNumber(int precision) throws WrongValueException {
    return new Script().evalToDouble(getText(), precision);
  }
 
  public double getDoubleValue() {
    Object n = (Object) getNumber();
    if(n instanceof Number) {
      return ((Number) n).doubleValue();
    }
    return 0.0d;
  }
  
  public void setValue(Object value) throws WrongValueException {
    setText(coerceToString(value == null ? "" : value));
  }
 
  @Override
  protected Object coerceFromString(String value) throws WrongValueException {
    return Script.formatInput(new Script().evalToDouble(value), format == null ? "0.########" : format);
  }
 
  @Override
  protected String coerceToString(Object value) {
    return Script.formatInput(value, format == null ? "0.########" : format);
  }
 
  public String getFormat() {
    return format;
  }
 
  public void setFormat(String format) {
    this.format = format;
  }
 
}