jars/icu4j-52_1/tools/misc/src/com/ibm/icu/dev/tool/layout/FeatureList.java

   1 /*
   2  *******************************************************************************
   3  * Copyright (C) 1998-2004, International Business Machines Corporation and    *
   4  * others. All Rights Reserved.                                                *
   5  *******************************************************************************
   6  *
   7  * Created on Dec 3, 2003
   8  *
   9  *******************************************************************************
  10  */
  11 package com.ibm.icu.dev.tool.layout;
  12
  13
  14 public class FeatureList
  15 {
  16
  17     private Feature[] features;
  18     private int featureCount;
  19
  20     public FeatureList()
  21     {
  22         features = new Feature[10];
  23         featureCount = 0;
  24     }
  25
  26     public void addFeature(Feature feature)
  27     {
  28         if (featureCount >= features.length) {
  29             Feature[] newFeatures = new Feature[features.length + 5];
  30
  31             System.arraycopy(features, 0, newFeatures, 0, features.length);
  32             features = newFeatures;
  33         }
  34
  35         features[featureCount++] = feature;
  36     }
  37
  38     public void finalizeFeatureList()
  39     {
  40         TaggedRecord.sort(features, featureCount);
  41
  42         for (int i = 0; i < featureCount; i += 1) {
  43             features[i].setFeatureIndex(i);
  44         }
  45     }
  46
  47     public void writeFeaturetList(OpenTypeTableWriter writer)
  48     {
  49         System.out.print("writing feature list...");
  50
  51         int featureListBase = writer.getOutputIndex();
  52
  53         writer.writeData(featureCount);
  54
  55         int featureRecordOffset = writer.getOutputIndex();
  56
  57         for (int i = 0; i < featureCount; i += 1) {
  58             String tag = features[i].getTag();
  59
  60             System.out.print(" '" + tag + "'");
  61             writer.writeTag(tag);
  62             writer.writeData(0);
  63         }
  64
  65         for (int i = 0; i < featureCount; i += 1) {
  66             // fix the offset in the featureRecordArray.
  67             // The "+2" skips over the tag and the "+3"
  68             // skips to the next featureRecord entry
  69             writer.fixOffset(featureRecordOffset + 2, featureListBase);
  70             featureRecordOffset += 3;
  71
  72             features[i].writeFeature(writer);
  73         }
  74
  75         System.out.println();
  76     }
  77 }