001 /* 002 * Copyright (C) 2012 eXo Platform SAS. 003 * 004 * This is free software; you can redistribute it and/or modify it 005 * under the terms of the GNU Lesser General Public License as 006 * published by the Free Software Foundation; either version 2.1 of 007 * the License, or (at your option) any later version. 008 * 009 * This software is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * You should have received a copy of the GNU Lesser General Public 015 * License along with this software; if not, write to the Free 016 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 017 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 018 */ 019 020 package org.crsh.text.ui; 021 022 import org.crsh.text.LineRenderer; 023 import org.crsh.text.Style; 024 import org.crsh.util.CharSlicer; 025 import org.crsh.util.Pair; 026 027 public class LabelElement extends Element { 028 029 /** . */ 030 final String value; 031 032 /** . */ 033 final int minWidth; 034 035 /** . */ 036 final int actualWidth; 037 038 /** . */ 039 final int actualHeight; 040 041 /** . */ 042 final CharSlicer slicer; 043 044 /** 045 * Create a new label element 046 * 047 * @param value the label value 048 * @param minWidth the label minimum width 049 * @throws IllegalArgumentException if the minimum width is negative 050 */ 051 public LabelElement(Object value, int minWidth) throws IllegalArgumentException { 052 if (minWidth < 0) { 053 throw new IllegalArgumentException("No negative min size allowed"); 054 } 055 056 // 057 String s = String.valueOf(value); 058 059 // Determine size 060 CharSlicer slicer = new CharSlicer(s); 061 Pair<Integer, Integer> size = slicer.size(); 062 063 // 064 this.value = s; 065 this.minWidth = Math.min(size.getFirst(), minWidth); 066 this.actualWidth = size.getFirst(); 067 this.actualHeight = size.getSecond(); 068 this.slicer = slicer; 069 } 070 071 public LabelElement(String value) { 072 this((Object)value); 073 } 074 075 public LabelElement(String value, int minWidth) { 076 this((Object)value, minWidth); 077 } 078 079 public LabelElement(Object value) { 080 this(value, 1); 081 } 082 083 public String getValue() { 084 return value; 085 } 086 087 public LineRenderer renderer() { 088 return new LabelLineRenderer(this); 089 } 090 091 @Override 092 public String toString() { 093 return "Label[" + value + "]"; 094 } 095 096 @Override 097 public LabelElement style(Style.Composite style) { 098 return (LabelElement)super.style(style); 099 } 100 }