Examples of RSyntaxDocument

org.fife.ui.rsyntaxtextarea.RSyntaxDocument
The document used by {@link org.fife.ui.rsyntaxtextarea.RSyntaxTextArea}. This document is like javax.swing.text.PlainDocument except that it also keeps track of syntax highlighting in the document. It has a "style" attribute associated with it that determines how syntax highlighting is done (i.e., what language is being highlighted).
Instances of RSyntaxTextArea will only accept instances of RSyntaxDocument, since it is this document that keeps track of syntax highlighting. All others will cause an exception to be thrown.
To change the language being syntax highlighted at any time, you merely have to call {@link #setSyntaxStyle}. Other than that, this document can be treated like any other save one caveat: all DocumentEvents of type CHANGE use their offset and length values to represent the first and last lines, respectively, that have had their syntax coloring change. This is really a hack to increase the speed of the painting code and should really be corrected, but oh well. @author Robert Futrell @version 0.1

Examples of org.fife.ui.rsyntaxtextarea.RSyntaxDocument

    
    this.session = session;
    
 // RSyntaxDocument doc = new RSyntaxDocument(new RenjinTokenMakerFactory(), RenjinTokenMakerFactory.SYNTAX_STYLE_R);
    
    RSyntaxDocument doc = new RSyntaxDocument(TokenMakerFactory.getDefaultInstance(), "text/plain");
    
    textArea = new RSyntaxTextArea(doc, null, 20, 60);
    textArea.setCodeFoldingEnabled(true);
    textArea.setAntiAliasingEnabled(true);
    textArea.setText("f<-function() { \n\t42\n}");

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Examples of org.fife.ui.rsyntaxtextarea.RSyntaxDocument




  private CompletionProvider getProviderFor(JTextComponent comp) {


    RSyntaxTextArea rsta = (RSyntaxTextArea)comp;
    RSyntaxDocument doc = (RSyntaxDocument)rsta.getDocument();
    int line = rsta.getCaretLineNumber();
    Token t = doc.getTokenListForLine(line);
    if (t==null) {
      return getDefaultCompletionProvider();
    }


    int dot = rsta.getCaretPosition();
    Token curToken = RSyntaxUtilities.getTokenAtOffset(t, dot);


    if (curToken==null) { // At end of the line


      int type = doc.getLastTokenTypeOnLine(line);
      if (type==Token.NULL) {
        Token temp = t.getLastPaintableToken();
        if (temp==null) {
          return getDefaultCompletionProvider();
        }

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Examples of org.fife.ui.rsyntaxtextarea.RSyntaxDocument

   protected Document createDefaultModel()
   {
      // Is called from the super class constructor.
      // That is why initialization takes place here.
      _rSyntaxHighlightTokenMatcherProxy = new RSyntaxHighlightTokenMatcherProxy();
      RSyntaxDocument ret = new RSyntaxDocument(new SquirrelTokenMarkerFactory(this, _rSyntaxHighlightTokenMatcherProxy), SYNTAX_STYLE_SQL);
      return ret;
   }

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Examples of org.fife.ui.rsyntaxtextarea.RSyntaxDocument

   * @return The completion provider to use.
   */
  private CompletionProvider getProviderFor(JTextComponent comp) {


    RSyntaxTextArea rsta = (RSyntaxTextArea)comp;
    RSyntaxDocument doc = (RSyntaxDocument)rsta.getDocument();
    int line = rsta.getCaretLineNumber();
    Token t = doc.getTokenListForLine(line);
    if (t==null) {
      return getDefaultCompletionProvider();
    }


    int dot = rsta.getCaretPosition();
    Token curToken = RSyntaxUtilities.getTokenAtOffset(t, dot);


    if (curToken==null) { // At end of the line


      int type = doc.getLastTokenTypeOnLine(line);
      if (type==Token.NULL) {
        Token temp = t.getLastPaintableToken();
        if (temp==null) {
          return getDefaultCompletionProvider();
        }

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Examples of org.fife.ui.rsyntaxtextarea.RSyntaxDocument

    Caret c = textArea.getCaret();
    int dot = c.getDot();
    int mark = c.getMark();
    int p0 = Math.min(dot, mark);
    int p1 = Math.max(dot, mark);
    RSyntaxDocument doc = (RSyntaxDocument)textArea.getDocument();
    Element map = doc.getDefaultRootElement();


    int lineNum = map.getElementIndex(dot);
    Element line = map.getElement(lineNum);
    int start = line.getStartOffset();
    int end = line.getEndOffset()-1; // Why always "-1"?
    String s = textArea.getText(start,end-start);
    int len = s.length();


    // endWS is the end of the leading whitespace
    // of the current line.
    int endWS = 0;
    while (endWS<len && RSyntaxUtilities.isWhitespace(s.charAt(endWS))) {
      endWS++;
    }
    s = s.substring(0, endWS);
    p0 -= getID().length();
    String beforeText = getBeforeTextIndented(s);
    String afterText = getAfterTextIndented(s);
    doc.replace(p0,p1-p0, beforeText+afterText, null);
    textArea.setCaretPosition(p0+beforeText.length());


  }

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Examples of org.fife.ui.rsyntaxtextarea.RSyntaxDocument

  }


  private CompletionProvider getProviderFor(JTextComponent comp) {


    RSyntaxTextArea rsta = (RSyntaxTextArea)comp;
    RSyntaxDocument doc = (RSyntaxDocument)rsta.getDocument();
    int line = rsta.getCaretLineNumber();
    Token t = doc.getTokenListForLine(line);
    if (t==null) {
      return this.defaultProvider;
    }




    int dot = rsta.getCaretPosition();


    //Token curToken = RSyntaxUtilities.getTokenAtOffset(t, dot);
    Token curToken = RSyntaxUtilities.getTokenAtOffset(t, dot);


    if (curToken==null) { // At end of the line


      int type = doc.getLastTokenTypeOnLine(line);
      if (type==Token.NULL) {
        Token temp = t.getLastPaintableToken();
        if (temp==null) {
          return this.defaultProvider;
        }

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Examples of org.fife.ui.rsyntaxtextarea.RSyntaxDocument

 // get the text of the current line (the line over which the caret is placed)
   public  String  getCurrentLine() {
       if (docVar == null)
           updateDocument();


       RSyntaxDocument  myDoc = syntaxDocument;  // the RSyntaxDocument being edited


       int caretpos = editorPane.getCaretPosition();  // the caret's current position
       int startpos = editorPane.getCaretOffsetFromLineStart();  // offset of caret from the start of line
       // subtract the offset from the start of line, in order scanpos to be the position of the start of the line
       int scanpos = caretpos-startpos;   
        // scan until a newline accumulating the line
       String s = "";
       try {
            char ch = myDoc.charAt(scanpos);
       while (ch!='\n') {
           s += myDoc.charAt(scanpos);
           scanpos += 1;
           ch = myDoc.charAt(scanpos);
       }
       } catch (BadLocationException ex) {
                ex.printStackTrace();
            }

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Examples of org.fife.ui.rsyntaxtextarea.RSyntaxDocument

    Caret c = textArea.getCaret();
    int dot = c.getDot();
    int mark = c.getMark();
    int p0 = Math.min(dot, mark);
    int p1 = Math.max(dot, mark);
    RSyntaxDocument doc = (RSyntaxDocument)textArea.getDocument();
    Element map = doc.getDefaultRootElement();


    int lineNum = map.getElementIndex(dot);
    Element line = map.getElement(lineNum);
    int start = line.getStartOffset();
    int end = line.getEndOffset()-1; // Why always "-1"?
    String s = textArea.getText(start,end-start);
    int len = s.length();


    // endWS is the end of the leading whitespace
    // of the current line.
    int endWS = 0;
    while (endWS<len && RSyntaxUtilities.isWhitespace(s.charAt(endWS))) {
      endWS++;
    }
    s = s.substring(0, endWS);
    p0 -= getID().length();
    String beforeText = getBeforeTextIndented(s);
    String afterText = getAfterTextIndented(s);
    doc.replace(p0,p1-p0, beforeText+afterText, null);
    textArea.setCaretPosition(p0+beforeText.length());


  }

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Examples of org.fife.ui.rsyntaxtextarea.RSyntaxDocument

   {
      String selectedText = this.textArea.getSelectedText();
      // If text is selected just use that, otherwise select the nearest token.
      if (selectedText == null)
      {
         RSyntaxDocument doc = (RSyntaxDocument) textArea.getDocument();
         doc.readLock();
         try
         {
            // Get the token at the caret position.
            int line = textArea.getCaretLineNumber();
            Token tokenList = textArea.getTokenListForLine(line);
            int dot = this.textArea.getCaret().getDot();
            Token t = RSyntaxUtilities.getTokenAtOffset(tokenList, dot);
            if (t == null)
            {
               // Try to the "left" of the caret.
               dot--;
               try
               {
                  if (dot >= textArea.getLineStartOffset(line))
                  {
                     t = RSyntaxUtilities.getTokenAtOffset(tokenList, dot);
                  }
               }
               catch (BadLocationException ble)
               {
                  ble.printStackTrace(); // Never happens
               }


            }
            if (t != null)
            {
               try
               {
                  // A bug in this method sometimes throws a null pointer exception.
                  selectedText = t.getLexeme();
               }
               catch (NullPointerException e)
               {}
            }
         }
         finally
         {
            doc.readUnlock();
         }
      }
      if (selectedText == null)
         return "";
      else

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Examples of org.fife.ui.rsyntaxtextarea.RSyntaxDocument

    Caret c = textArea.getCaret();
    int dot = c.getDot();
    int mark = c.getMark();
    int p0 = Math.min(dot, mark);
    int p1 = Math.max(dot, mark);
    RSyntaxDocument doc = (RSyntaxDocument)textArea.getDocument();
    Element map = doc.getDefaultRootElement();


    int lineNum = map.getElementIndex(dot);
    Element line = map.getElement(lineNum);
    int start = line.getStartOffset();
    int end = line.getEndOffset()-1; // Why always "-1"?
    String s = textArea.getText(start,end-start);
    int len = s.length();


    // endWS is the end of the leading whitespace
    // of the current line.
    int endWS = 0;
    while (endWS<len && RSyntaxUtilities.isWhitespace(s.charAt(endWS))) {
      endWS++;
    }
    s = s.substring(0, endWS);
    p0 -= getID().length();
    String beforeText = getBeforeTextIndented(s);
    String afterText = getAfterTextIndented(s);
    doc.replace(p0,p1-p0, beforeText+afterText, null);
    textArea.setCaretPosition(p0+beforeText.length());


  }

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