gwt.material.design.client.ui.MaterialIntegerBox Maven / Gradle / Ivy

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/*
 * #%L
 * GwtMaterial
 * %%
 * Copyright (C) 2015 - 2017 GwtMaterialDesign
 * %%
 * Licensed 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.
 * #L%
 */
package gwt.material.design.client.ui;

//@formatter:off

/**
 * Material Integer Box is an input field that accepts any Integer based string
 * from user. UiBinder Usage:
 * 
 * 
 {@code 
 *
 * // Setting value in Java
 * txtIntegerBox.setValue(10);
 * }
 * 
 * 
 * The parsing and formatting of the number are done natively by the browser,
 * using the i18n settings from the user.
 *
 * @author paulux84
 * @see Material
 * IntegerBox
 * @see Material Design Specification
 */
// @formatter:on
public class MaterialIntegerBox extends MaterialNumberBox {

    public MaterialIntegerBox() {
        setStep("1");
    }

    public MaterialIntegerBox(String placeholder) {
        this();
        setPlaceholder(placeholder);
    }

    public MaterialIntegerBox(String placeholder, int value) {
        this(placeholder);
        setValue(value);
    }

    @Override
    protected Integer parseNumber(double number) {
        if (Double.isNaN(number)) {
            return null;
        }
        return (int) Math.rint(number);
    }
}