001 /* ParameterBlock.java -- 002 Copyright (C) 2002 Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 039 package java.awt.image.renderable; 040 041 import java.awt.image.RenderedImage; 042 import java.io.Serializable; 043 import java.util.Vector; 044 045 public class ParameterBlock implements Cloneable, Serializable 046 { 047 private static final long serialVersionUID = -7577115551785240750L; 048 protected Vector<Object> sources; 049 protected Vector<Object> parameters; 050 051 public ParameterBlock() 052 { 053 this(new Vector<Object>(), new Vector<Object>()); 054 } 055 056 public ParameterBlock(Vector<Object> sources) 057 { 058 this(sources, new Vector<Object>()); 059 } 060 061 public ParameterBlock(Vector<Object> sources, Vector<Object> parameters) 062 { 063 this.sources = sources; 064 this.parameters = parameters; 065 } 066 067 public Object shallowClone() 068 { 069 try 070 { 071 return super.clone(); 072 } 073 catch (CloneNotSupportedException e) 074 { 075 throw (Error) new InternalError().initCause(e); // impossible 076 } 077 } 078 079 public Object clone() 080 { 081 ParameterBlock pb = (ParameterBlock) shallowClone(); 082 if (sources != null) 083 pb.sources = (Vector<Object>) sources.clone(); 084 if (parameters != null) 085 pb.parameters = (Vector<Object>) parameters.clone(); 086 return pb; 087 } 088 089 public ParameterBlock addSource(Object source) 090 { 091 sources.add(source); 092 return this; 093 } 094 095 public Object getSource(int index) 096 { 097 return sources.get(index); 098 } 099 100 public ParameterBlock setSource(Object source, int index) 101 { 102 sources.ensureCapacity(index); 103 sources.set(index, source); 104 return this; 105 } 106 107 public RenderedImage getRenderedSource(int index) 108 { 109 return (RenderedImage) sources.get(index); 110 } 111 112 public RenderableImage getRenderableSource(int index) 113 { 114 return (RenderableImage) sources.get(index); 115 } 116 117 public int getNumSources() 118 { 119 return sources.size(); 120 } 121 122 public Vector<Object> getSources() 123 { 124 return sources; 125 } 126 127 public void setSources(Vector<Object> sources) 128 { 129 this.sources = sources; 130 } 131 132 public void removeSources() 133 { 134 if (sources != null) 135 sources.clear(); 136 } 137 138 public int getNumParameters() 139 { 140 return parameters.size(); 141 } 142 143 public Vector<Object> getParameters() 144 { 145 return parameters; 146 } 147 148 public void setParameters(Vector<Object> parameters) 149 { 150 this.parameters = parameters; 151 } 152 153 public void removeParameters() 154 { 155 if (parameters != null) 156 parameters.clear(); 157 } 158 159 public ParameterBlock add(Object o) 160 { 161 parameters.add(o); 162 return this; 163 } 164 165 public ParameterBlock add(byte b) 166 { 167 return add(new Byte(b)); 168 } 169 170 public ParameterBlock add(char c) 171 { 172 return add(new Character(c)); 173 } 174 175 public ParameterBlock add(short s) 176 { 177 return add(new Short(s)); 178 } 179 180 public ParameterBlock add(int i) 181 { 182 return add(new Integer(i)); 183 } 184 185 public ParameterBlock add(long l) 186 { 187 return add(new Long(l)); 188 } 189 190 public ParameterBlock add(float f) 191 { 192 return add(new Float(f)); 193 } 194 195 public ParameterBlock add(double d) 196 { 197 return add(new Double(d)); 198 } 199 200 public ParameterBlock set(Object o, int index) 201 { 202 parameters.ensureCapacity(index); 203 parameters.set(index, o); 204 return this; 205 } 206 207 public ParameterBlock set(byte b, int index) 208 { 209 return set(new Byte(b), index); 210 } 211 212 public ParameterBlock set(char c, int index) 213 { 214 return set(new Character(c), index); 215 } 216 217 public ParameterBlock set(short s, int index) 218 { 219 return set(new Short(s), index); 220 } 221 222 public ParameterBlock set(int i, int index) 223 { 224 return set(new Integer(i), index); 225 } 226 227 public ParameterBlock set(long l, int index) 228 { 229 return set(new Long(l), index); 230 } 231 232 public ParameterBlock set(float f, int index) 233 { 234 return set(new Float(f), index); 235 } 236 237 public ParameterBlock set(double d, int index) 238 { 239 return set(new Double(d), index); 240 } 241 242 public Object getObjectParameter(int index) 243 { 244 return parameters.get(index); 245 } 246 247 public byte getByteParameter(int index) 248 { 249 return ((Byte) parameters.get(index)).byteValue(); 250 } 251 252 public char getCharParameter(int index) 253 { 254 return ((Character) parameters.get(index)).charValue(); 255 } 256 257 public short getShortParameter(int index) 258 { 259 return ((Short) parameters.get(index)).shortValue(); 260 } 261 262 public int getIntParameter(int index) 263 { 264 return ((Integer) parameters.get(index)).intValue(); 265 } 266 267 public long getLongParameter(int index) 268 { 269 return ((Long) parameters.get(index)).longValue(); 270 } 271 272 public float getFloatParameter(int index) 273 { 274 return ((Float) parameters.get(index)).floatValue(); 275 } 276 277 public double getDoubleParameter(int index) 278 { 279 return ((Double) parameters.get(index)).doubleValue(); 280 } 281 282 public Class[] getParamClasses() 283 { 284 int i = parameters.size(); 285 Class[] result = new Class[i]; 286 while (--i >= 0) 287 { 288 Class c = parameters.get(i).getClass(); 289 if (c == Byte.class) 290 result[i] = byte.class; 291 else if (c == Character.class) 292 result[i] = char.class; 293 else if (c == Short.class) 294 result[i] = short.class; 295 else if (c == Integer.class) 296 result[i] = int.class; 297 else if (c == Long.class) 298 result[i] = long.class; 299 else if (c == Float.class) 300 result[i] = float.class; 301 else if (c == Double.class) 302 result[i] = double.class; 303 else 304 result[i] = c; 305 } 306 return result; 307 } 308 } // class ParameterBlock