Example usage for javax.swing.text Document getText

Introduction

In this page you can find the example usage for javax.swing.text Document getText.

Prototype

public String getText(int offset, int length) throws BadLocationException;

Source Link

Document

Fetches the text contained within the given portion of the document.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    JTextArea comp = new JTextArea();
    String actionName = "Lowercase";

    JFrame f = new JFrame();
    f.add(new JScrollPane(comp));
    f.setSize(300, 300);//from   ww  w.ja v a  2s  . c  o  m
    f.setVisible(true);
    comp.getInputMap().put(KeyStroke.getKeyStroke("F2"), actionName);

    comp.getActionMap().put(actionName, new TextAction(actionName) {
        public void actionPerformed(ActionEvent evt) {
            JTextComponent comp = getTextComponent(evt);

            if (comp.getSelectionStart() == comp.getSelectionEnd()) {
                if (comp.getCaretPosition() < comp.getDocument().getLength()) {
                    try {
                        int pos = comp.getCaretPosition();
                        Document doc = comp.getDocument();
                        String str = doc.getText(pos, 1).toLowerCase();

                        doc.remove(pos, 1);
                        doc.insertString(pos, str, null);
                        comp.moveCaretPosition(pos + 1);
                    } catch (Exception e) {
                        System.out.println();
                    }
                }
            } else {
                int s = comp.getSelectionStart();
                int e = comp.getSelectionEnd();

                comp.replaceSelection(comp.getSelectedText().toLowerCase());
                comp.select(s, e);
            }
        }
    });
}

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From source file:MainClass.java

public static void main(String args[]) throws Exception {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    JTextField nameTextField = new JTextField();
    frame.add(nameTextField, BorderLayout.NORTH);
    frame.add(new JTextField(), BorderLayout.SOUTH);

    DocumentListener documentListener = new DocumentListener() {
        public void changedUpdate(DocumentEvent documentEvent) {
            printIt(documentEvent);//w w  w . java 2  s.  com
        }

        public void insertUpdate(DocumentEvent documentEvent) {
            printIt(documentEvent);
        }

        public void removeUpdate(DocumentEvent documentEvent) {
            printIt(documentEvent);
        }

        private void printIt(DocumentEvent documentEvent) {
            DocumentEvent.EventType type = documentEvent.getType();
            String typeString = null;
            if (type.equals(DocumentEvent.EventType.CHANGE)) {
                typeString = "Change";
            } else if (type.equals(DocumentEvent.EventType.INSERT)) {
                typeString = "Insert";
            } else if (type.equals(DocumentEvent.EventType.REMOVE)) {
                typeString = "Remove";
            }
            System.out.print("Type  :   " + typeString + " / ");
            Document source = documentEvent.getDocument();
            int length = source.getLength();
            try {
                System.out.println("Contents: " + source.getText(0, length));
            } catch (BadLocationException badLocationException) {
                System.out.println("Contents: Unknown");
            }
        }
    };
    nameTextField.getDocument().addDocumentListener(documentListener);

    frame.setSize(250, 100);
    frame.setVisible(true);
}

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From source file:Main.java

public static String getDocumentText(final Document document) {
    try {/*from  www  .  j a  v  a2 s.  c o m*/
        return document.getText(0, document.getLength());
    } catch (BadLocationException e) {
        throw new RuntimeException(e);
    }
}

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From source file:Main.java

public static void highlight(JTextComponent textComp, String pattern) throws Exception {
    removeHighlights(textComp);/*from w ww  . j ava  2 s .co  m*/

    Highlighter hilite = textComp.getHighlighter();
    Document doc = textComp.getDocument();
    String text = doc.getText(0, doc.getLength());
    int pos = 0;

    while ((pos = text.indexOf(pattern, pos)) >= 0) {
        hilite.addHighlight(pos, pos + pattern.length(), myHighlightPainter);
        pos += pattern.length();
    }

}

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From source file:Main.java

private static int getTagEnd(Document doc, int p) {
    int elementEnd = 0;

    if (p > 0) {
        try {//from w w  w .j  ava  2s  .c  o  m
            int index = 0;

            String s = doc.getText(0, p);
            int commentStart = s.lastIndexOf("<!--");
            int commentEnd = s.lastIndexOf("-->");

            if (commentStart > 0 && commentStart > commentEnd) {
                index = s.lastIndexOf(">", commentStart);
            } else {
                index = s.lastIndexOf(">");
            }

            if (index != -1) {
                elementEnd = index;
            }
        } catch (BadLocationException bl) {
        }
    }

    return elementEnd;
}

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From source file:com.mirth.connect.server.userutil.FileUtil.java

/**
 * Converts an RTF into plain text using the Swing RTFEditorKit.
 * /*  w w w .  jav a 2  s  .c  o m*/
 * @param message
 *            The RTF message to convert.
 * @param replaceLinebreaksWith
 *            If not null, any line breaks in the converted message will be replaced with this
 *            string.
 * @return The converted plain text message.
 * @throws IOException
 * @throws BadLocationException
 */
public static String rtfToPlainText(String message, String replaceLinebreaksWith)
        throws IOException, BadLocationException {

    String convertedPlainText;

    // Reading the RTF content string
    Reader in = new StringReader(message);

    // creating a default blank styled document
    DefaultStyledDocument styledDoc = new DefaultStyledDocument();

    // Creating a RTF Editor kit
    RTFEditorKit rtfKit = new RTFEditorKit();

    // Populating the contents in the blank styled document
    rtfKit.read(in, styledDoc, 0);

    // Getting the root document
    Document doc = styledDoc.getDefaultRootElement().getDocument();

    convertedPlainText = doc.getText(0, doc.getLength());
    if (replaceLinebreaksWith != null) {
        convertedPlainText = convertedPlainText.replaceAll("\\n", replaceLinebreaksWith);
    }

    return convertedPlainText;
}

---

From source file:com.mirth.connect.server.util.FileUtil.java

public static String rtfToPlainText(String message, String replaceLinebreaksWith)
        throws IOException, BadLocationException {

    String convertedPlainText;//from w  w  w . j a  v a  2s . c  om

    // Reading the RTF content string
    Reader in = new StringReader(message);

    // creating a default blank styled document
    DefaultStyledDocument styledDoc = new DefaultStyledDocument();

    // Creating a RTF Editor kit
    RTFEditorKit rtfKit = new RTFEditorKit();

    // Populating the contents in the blank styled document
    rtfKit.read(in, styledDoc, 0);

    // Getting the root document
    Document doc = styledDoc.getDefaultRootElement().getDocument();

    convertedPlainText = doc.getText(0, doc.getLength());
    if (replaceLinebreaksWith != null) {
        convertedPlainText = convertedPlainText.replaceAll("\\n", replaceLinebreaksWith);
    }

    return convertedPlainText;
}

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From source file:HTML.java

/**
 * Utility method to convert HTML to text.
 * @param html The string containing HTML.
 * @return a String containing the derived text .
 *///from  w  ww  .  j  a  va  2s. co  m
public static final String html2text(String html) {
    EditorKit kit = new HTMLEditorKit();
    Document doc = kit.createDefaultDocument();
    doc.putProperty("IgnoreCharsetDirective", Boolean.TRUE);
    try {
        Reader reader = new StringReader(html);
        kit.read(reader, doc, 0);
        return doc.getText(0, doc.getLength());
    } catch (Exception e) {

        return "";
    }
}

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From source file:TextUtilities.java

/**
 * Returns the offset of the bracket matching the one at the specified offset
 * of the document, or -1 if the bracket is unmatched (or if the character is
 * not a bracket).//from  w w  w  .j av a 2 s .co  m
 * 
 * @param doc
 *           The document
 * @param offset
 *           The offset
 * @exception BadLocationException
 *               If an out-of-bounds access was attempted on the document
 *               text
 */
public static int findMatchingBracket(Document doc, int offset) throws BadLocationException {
    if (doc.getLength() == 0)
        return -1;
    char c = doc.getText(offset, 1).charAt(0);
    char cprime; // c` - corresponding character
    boolean direction; // true = back, false = forward

    switch (c) {
    case '(':
        cprime = ')';
        direction = false;
        break;
    case ')':
        cprime = '(';
        direction = true;
        break;
    case '[':
        cprime = ']';
        direction = false;
        break;
    case ']':
        cprime = '[';
        direction = true;
        break;
    case '{':
        cprime = '}';
        direction = false;
        break;
    case '}':
        cprime = '{';
        direction = true;
        break;
    default:
        return -1;
    }

    int count;

    // How to merge these two cases is left as an exercise
    // for the reader.

    // Go back or forward
    if (direction) {
        // Count is 1 initially because we have already
        // `found' one closing bracket
        count = 1;

        // Get text[0,offset-1];
        String text = doc.getText(0, offset);

        // Scan backwards
        for (int i = offset - 1; i >= 0; i--) {
            // If text[i] == c, we have found another
            // closing bracket, therefore we will need
            // two opening brackets to complete the
            // match.
            char x = text.charAt(i);
            if (x == c)
                count++;

            // If text[i] == cprime, we have found a
            // opening bracket, so we return i if
            // --count == 0
            else if (x == cprime) {
                if (--count == 0)
                    return i;
            }
        }
    } else {
        // Count is 1 initially because we have already
        // `found' one opening bracket
        count = 1;

        // So we don't have to + 1 in every loop
        offset++;

        // Number of characters to check
        int len = doc.getLength() - offset;

        // Get text[offset+1,len];
        String text = doc.getText(offset, len);

        // Scan forwards
        for (int i = 0; i < len; i++) {
            // If text[i] == c, we have found another
            // opening bracket, therefore we will need
            // two closing brackets to complete the
            // match.
            char x = text.charAt(i);

            if (x == c)
                count++;

            // If text[i] == cprime, we have found an
            // closing bracket, so we return i if
            // --count == 0
            else if (x == cprime) {
                if (--count == 0)
                    return i + offset;
            }
        }
    }

    // Nothing found
    return -1;
}

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From source file:TextFieldViews.java

public static void displayView(View view, int indent, Document doc, PrintStream out) {
    String name = view.getClass().getName();
    for (int i = 0; i < indent; i++) {
        out.print("\t");
    }//from  w  w w  .j  av  a  2s .  co m

    int start = view.getStartOffset();
    int end = view.getEndOffset();
    out.println(name + "; offsets [" + start + ", " + end + "]");
    int viewCount = view.getViewCount();
    if (viewCount == 0) {
        int length = Math.min(32, end - start);
        try {
            String txt = doc.getText(start, length);
            for (int i = 0; i < indent + 1; i++) {
                out.print("\t");
            }
            out.println("[" + txt + "]");
        } catch (BadLocationException e) {
        }
    } else {
        for (int i = 0; i < viewCount; i++) {
            displayView(view.getView(i), indent + 1, doc, out);
        }
    }
}

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