/*******************************************************************************
* Copyright (c) 2008 xored software, Inc.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* xored software, Inc. - initial API and Implementation (Alex Panchenko)
*******************************************************************************/
package org.eclipse.dltk.ui.preferences;
/**
* Abstract class implementing {@link ITextConverter} to be used for integer
* numbers.
*/
public abstract class NumberTransformer implements ITextConverter {
public String convertPreference(String value) {
try {
return String.valueOf(convertPreference(Integer.parseInt(value)));
} catch (NumberFormatException e) {
return value;
}
}
/**
* Convert value from the internal format to the format suitable to display
* in the text box
*
* @param value
* @return
*/
protected abstract int convertPreference(int value);
public String convertInput(String input) {
try {
return String.valueOf(convertInput(Integer.parseInt(input)));
} catch (NumberFormatException e) {
return input;
}
}
/**
* Convert value entered into the text box to the internal format.
*
* @param input
* @return
*/
protected abstract int convertInput(int input);
}