bundles/org.simantics.scl.ui/src/org/simantics/scl/ui/editor/MatchingBracketsEditStrategy.java

   1 package org.simantics.scl.ui.editor;
   2
   3 import org.eclipse.jface.text.DocumentCommand;
   4 import org.eclipse.jface.text.IAutoEditStrategy;
   5 import org.eclipse.jface.text.IDocument;
   6
   7 public class MatchingBracketsEditStrategy implements IAutoEditStrategy {
   8
   9         char justAddedClosingBracket = (char)0;
  10
  11         public void customizeDocumentCommand(IDocument d, DocumentCommand c) {
  12                 if (c.length == 0 && c.text != null) {
  13                         if(c.text.equals("(")) { //$NON-NLS-1$
  14                                 c.text = "()"; //$NON-NLS-1$
  15                                 justAddedClosingBracket = ')';
  16                         }
  17                         else if(c.text.equals("[")) { //$NON-NLS-1$
  18                                 c.text = "[]"; //$NON-NLS-1$
  19                                 justAddedClosingBracket = ']';
  20                         }
  21                         else {
  22                                 if(c.text.length() == 1 && c.text.charAt(0) == justAddedClosingBracket) {
  23                                         c.text = ""; //$NON-NLS-1$
  24                                         c.shiftsCaret = false;
  25                                         c.caretOffset = c.offset+1;
  26                                 }
  27                                 justAddedClosingBracket = (char)0;
  28                                 return;
  29                         }
  30
  31                         // Puts caret between brackets
  32                         c.caretOffset = c.offset+1;
  33                         c.shiftsCaret = false;
  34                 }
  35                 else
  36                         justAddedClosingBracket = (char)0;
  37         }
  38
  39 }