content: /*
   * Copyright 2019 Aurélien Gâteau <mail@agateau.com>
   *
   * This file is part of Pixel Wheels.
   *
   * 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.
   */
  package com.agateau.ui.animscript;
  
  import com.agateau.ui.DimensionParser;
  import java.io.IOException;
  import java.io.StreamTokenizer;
  
  class FloatArgumentDefinition extends ArgumentDefinition<Float> {
      enum Domain {
          DIMENSION,
          DURATION,
          SCALAR
      }
  
      private final FloatArgumentDefinition.Domain mDomain;
  
      FloatArgumentDefinition(FloatArgumentDefinition.Domain domain) {
          super(Float.TYPE, null);
          mDomain = domain;
      }
  
      FloatArgumentDefinition(FloatArgumentDefinition.Domain domain, float defaultValue) {
          super(Float.TYPE, defaultValue);
          mDomain = domain;
      }
  
      @Override
      public Object parse(StreamTokenizer tokenizer, DimensionParser dimParser)
              throws AnimScriptLoader.SyntaxException {
          try {
              tokenizer.nextToken();
          } catch (IOException e) {
              throw new AnimScriptLoader.SyntaxException(tokenizer, "Missing token for argument");
          }
          float value;
          if (tokenizer.ttype == StreamTokenizer.TT_WORD) {
              if (mDomain == Domain.DIMENSION) {
                  value = dimParser.parse(tokenizer.sval, DimensionParser.Unit.PIXEL);
              } else {
                  value = Float.parseFloat(tokenizer.sval);
              }
          } else if (this.defaultValue != null) {
              tokenizer.pushBack();
              value = this.defaultValue;
          } else {
              throw new AnimScriptLoader.SyntaxException(
                      tokenizer, "No value set for this argument, which has no default value");
          }
          return value;
      }
  }
  