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   1 /*
   2  * (c) Copyright IBM Corp. 2000, 2001. All Rights Reserved.
   3  */
   4 package net.sourceforge.phpdt.internal.ui.text.java;
   5
   6 import net.sourceforge.phpdt.core.ICodeFormatter;
   7 import net.sourceforge.phpdt.core.ToolFactory;
   8 import net.sourceforge.phpdt.internal.corext.codemanipulation.StubUtility;
   9 import net.sourceforge.phpdt.internal.corext.util.Strings;
  10 import net.sourceforge.phpdt.internal.ui.preferences.CodeFormatterPreferencePage;
  11
  12 import org.eclipse.jface.text.IDocument;
  13 import org.eclipse.jface.text.formatter.IFormattingStrategy;
  14 import org.eclipse.jface.text.source.ISourceViewer;
  15
  16 public class JavaFormattingStrategy implements IFormattingStrategy {
  17
  18         private String fInitialIndentation;
  19
  20         private ISourceViewer fViewer;
  21
  22         public JavaFormattingStrategy(ISourceViewer viewer) {
  23                 fViewer = viewer;
  24         }
  25
  26         /**
  27          * @see IFormattingStrategy#formatterStarts(String)
  28          */
  29         public void formatterStarts(String initialIndentation) {
  30                 fInitialIndentation = initialIndentation;
  31         }
  32
  33         /**
  34          * @see IFormattingStrategy#formatterStops()
  35          */
  36         public void formatterStops() {
  37         }
  38
  39         /**
  40          * @see IFormattingStrategy#format(String, boolean, String, int[])
  41          */
  42         public String format(String content, boolean isLineStart,
  43                         String indentation, int[] positions) {
  44                 ICodeFormatter formatter = ToolFactory.createCodeFormatter();
  45
  46                 IDocument doc = fViewer.getDocument();
  47                 String lineDelimiter = StubUtility.getLineDelimiterFor(doc);
  48
  49                 int indent = 0;
  50                 if (fInitialIndentation != null) {
  51                         indent = Strings.computeIndent(fInitialIndentation,
  52                                         CodeFormatterPreferencePage.getTabSize());
  53                 }
  54
  55                 return formatter.format(content, indent, positions, lineDelimiter);
  56         }
  57 }