001 package org.apache.myfaces.tobago.layout; 002 003 /* 004 * Licensed to the Apache Software Foundation (ASF) under one or more 005 * contributor license agreements. See the NOTICE file distributed with 006 * this work for additional information regarding copyright ownership. 007 * The ASF licenses this file to You under the Apache License, Version 2.0 008 * (the "License"); you may not use this file except in compliance with 009 * the License. You may obtain a copy of the License at 010 * 011 * http://www.apache.org/licenses/LICENSE-2.0 012 * 013 * Unless required by applicable law or agreed to in writing, software 014 * distributed under the License is distributed on an "AS IS" BASIS, 015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 016 * See the License for the specific language governing permissions and 017 * limitations under the License. 018 */ 019 020 import org.apache.commons.logging.Log; 021 import org.apache.commons.logging.LogFactory; 022 023 public final class PixelMeasure extends Measure { 024 025 private static final Log LOG = LogFactory.getLog(PixelMeasure.class); 026 027 private static final PixelMeasure NULL = new PixelMeasure(0); 028 029 private final int pixel; 030 031 public PixelMeasure(int pixel) { 032 this.pixel = pixel; 033 } 034 035 public Measure add(Measure m) { 036 return new PixelMeasure(pixel + m.getPixel()); 037 } 038 039 public Measure subtractNotNegative(Measure m) { 040 if (m.getPixel() > pixel) { 041 LOG.warn("Not enough space! value=" + pixel); 042 return NULL; 043 } else { 044 return new PixelMeasure(pixel + m.getPixel()); 045 } 046 } 047 048 @Deprecated 049 public Measure substractNotNegative(Measure m) { 050 return subtractNotNegative(m); 051 } 052 053 public int getPixel() { 054 return pixel; 055 } 056 057 @Override 058 public String toString() { 059 return pixel + "px"; 060 } 061 062 }