Example usage for javax.swing.text Document getText

List of usage examples for javax.swing.text Document getText

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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

private String addWhiteSpace(FilterBypass fb, int offset, String text) throws BadLocationException {
    Document doc = fb.getDocument();
    Element root = doc.getDefaultRootElement();
    int line = root.getElementIndex(offset);
    int i = root.getElement(line).getStartOffset();
    StringBuilder whiteSpace = new StringBuilder(text);

    while (true) {
        String temp = doc.getText(i, 1);
        if (temp.equals(" ") || temp.equals("\t")) {
            System.out.println("added");
            whiteSpace.append(temp);/*w  w  w.ja va 2s  . c o m*/
            i++;
        } else {
            break;
        }
    }
    return whiteSpace.toString();
}

From source file:Main.java

public void actionPerformed(ActionEvent e) {
    JTextComponent comp = getTextComponent(e);
    if (comp == null)
        return;//  w w  w  . j a v a 2  s .  com
    Document doc = comp.getDocument();
    int start = comp.getSelectionStart();
    int end = comp.getSelectionEnd();
    try {
        int left = Utilities.getWordStart(comp, start);
        int right = Utilities.getWordEnd(comp, end);
        String word = doc.getText(left, right - left);
        doc.remove(left, right - left);
        doc.insertString(left, word.toUpperCase(), null);
        comp.setSelectionStart(start);
        comp.setSelectionEnd(end);
    } catch (Exception ble) {
        return;
    }
}

From source file:Main.java

public void actionPerformed(ActionEvent e) {
    JTextComponent comp = getTextComponent(e);
    if (comp == null)
        return;//from  w w  w .  j  a  v a  2 s  . co m
    Document doc = comp.getDocument();
    int start = comp.getSelectionStart();
    int end = comp.getSelectionEnd();
    try {
        int left = Utilities.getWordStart(comp, start);
        int right = Utilities.getWordEnd(comp, end);
        String word = doc.getText(left, right - left);
        doc.remove(left, right - left);
        doc.insertString(left, word.toUpperCase(), null);
        comp.setSelectionStart(start);
        comp.setSelectionEnd(end);
    } catch (BadLocationException ble) {
        return;
    }
}

From source file:io.wcm.tooling.netbeans.sightly.completion.classLookup.MemberLookupCompleter.java

@Override
public List<CompletionItem> getCompletionItems(Document document, String filter, int startOffset,
        int caretOffset) {
    List<CompletionItem> ret = new ArrayList<>();
    try {/*  w ww.ja  va  2s .  c  o  m*/
        String text = document.getText(0, caretOffset);
        List<String> variables = resolveVariable(filter, text);
        // if the filter is not the complete variable, we first autocomplete the actual variable
        for (String variable : variables) {
            if (!StringUtils.equals(filter, variable)) {
                ret.add(new BasicCompletionItem(variable, true, startOffset, caretOffset));
            }
        }
        // otherwise we lookup the defined class and return all of it's members
        if (ret.isEmpty()) {
            Set<String> items = resolveClass(filter, text, document);
            for (String item : items) {
                if (StringUtils.startsWith(item, filter)) {
                    ret.add(new BasicCompletionItem(item, false, startOffset, caretOffset));
                }
            }
        }
    } catch (BadLocationException ex) {
        Exceptions.printStackTrace(ex);
    }
    return ret;
}

From source file:KeymapExample.java

public void actionPerformed(ActionEvent e) {
    JTextComponent comp = getTextComponent(e);
    if (comp == null)
        return;/* w  w  w. j a  v  a2s.  c  o  m*/
    Document doc = comp.getDocument();
    int start = comp.getSelectionStart();
    int end = comp.getSelectionEnd();
    try {
        int left = javax.swing.text.Utilities.getWordStart(comp, start);
        int right = javax.swing.text.Utilities.getWordEnd(comp, end);
        String word = doc.getText(left, right - left);
        doc.remove(left, right - left);
        doc.insertString(left, word.toUpperCase(), null);
        comp.setSelectionStart(start);
        comp.setSelectionEnd(end);
    } catch (BadLocationException ble) {
        return;
    }
}

From source file:LiveParenMatcher.java

public void insertUpdate_2(DocumentEvent de) {
    Document doc = de.getDocument();
    int offset = de.getOffset();
    int length = de.getLength();
    String inserted = "";
    try {/* ww w .  j ava2s.c o  m*/
        inserted = doc.getText(offset, length);
    } catch (BadLocationException ble) {
    }

    for (int j = 0; j < inserted.length(); j += 1) {
        char ch = inserted.charAt(j);
        if (ch == '(' || ch == '[' || ch == '{' || ch == ')' || ch == ']' || ch == '}') {
            SwingUtilities.invokeLater(this); // will call run()
            return; // no need to check further
        }
    }
}

From source file:ShowHTMLViews.java

public static void displayElement(Document doc, Element e, int indent, PrintStream out) {
    for (int i = 0; i < indent; i++) {
        out.print("  ");
    }/*  w  w  w .  j a  va  2 s.  com*/
    out.println("===== Element Class: " + getShortClassName(e.getClass()));
    for (int i = 0; i < indent; i++) {
        out.print("  ");
    }
    int startOffset = e.getStartOffset();
    int endOffset = e.getEndOffset();
    out.println("Offsets [" + startOffset + ", " + endOffset + "]");
    AttributeSet a = e.getAttributes();
    Enumeration x = a.getAttributeNames();
    for (int i = 0; i < indent; i++) {
        out.print("  ");
    }
    out.println("ATTRIBUTES:");
    while (x.hasMoreElements()) {
        for (int i = 0; i < indent; i++) {
            out.print("  ");
        }
        Object attr = x.nextElement();
        out.println(" (" + attr + ", " + a.getAttribute(attr) + ")" + " [" + getShortClassName(attr.getClass())
                + "/" + getShortClassName(a.getAttribute(attr).getClass()) + "] ");
    }

    // Display the text for a leaf element
    if (e.isLeaf()) {
        try {
            String str = doc.getText(startOffset, endOffset - startOffset);
            if (str.length() > 40) {
                str = str.substring(0, 40);
            }
            if (str.length() > 0) {
                for (int i = 0; i < indent; i++) {
                    out.print("  ");
                }
                out.println("[" + str + "]");
            }
        } catch (BadLocationException ex) {
        }
    }

    // Display child elements
    int count = e.getElementCount();
    for (int i = 0; i < count; i++) {
        displayElement(doc, e.getElement(i), indent + 1, out);
    }
}

From source file:edu.virginia.iath.oxygenplugins.juel.JUELPluginMenu.java

public JUELPluginMenu(StandalonePluginWorkspace spw, LocalOptions ops) {
    super(name, true);
    ws = spw;/*from   w  w w  . j  a  va 2  s . co  m*/
    options = ops;

    // setup the options
    //options.readStorage();

    // Find names
    JMenuItem search = new JMenuItem("Find Name");
    search.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent selection) {
            String label = "Find Name";

            final JTextField lastName = new JTextField("", 30);
            lastName.setPreferredSize(new Dimension(350, 25));
            //JTextField projectName = new JTextField("", 30);

            final JComboBox possibleVals = new JComboBox();
            possibleVals.setEnabled(false);
            possibleVals.setPreferredSize(new Dimension(350, 25));

            JButton search = new JButton("Search");
            search.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent selection) {
                    // query the database
                    try {
                        String json = "";
                        String line;
                        URL url = new URL("http://juel.iath.virginia.edu/academical_db/people/find_people?term="
                                + lastName.getText());
                        BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
                        while ((line = in.readLine()) != null) {
                            json += line;
                        }
                        JSONArray obj = new JSONArray(json);

                        // Read the JSON and update possibleVals
                        possibleVals.removeAllItems();
                        possibleVals.setEnabled(false);

                        for (int i = 0; i < obj.length(); i++) {
                            JSONObject cur = obj.getJSONObject(i);
                            String name = cur.getString("label");
                            String id = String.format("P%05d", cur.getInt("value"));
                            possibleVals.addItem(new ComboBoxObject(name, id));
                            possibleVals.setEnabled(true);
                        }
                    } catch (Exception e) {
                        e.printStackTrace();
                        possibleVals.setEnabled(false);
                    }

                    return;
                }
            });
            search.setPreferredSize(new Dimension(100, 25));

            JButton insert = new JButton("Insert");
            insert.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent sel) {
                    // Insert into the page
                    // Get the selected value, grab the ID, then insert into the document

                    // Get the editor
                    WSTextEditorPage ed = null;
                    WSEditor editorAccess = ws
                            .getCurrentEditorAccess(StandalonePluginWorkspace.MAIN_EDITING_AREA);
                    if (editorAccess != null && editorAccess.getCurrentPage() instanceof WSTextEditorPage) {
                        ed = (WSTextEditorPage) editorAccess.getCurrentPage();
                    }

                    String result = "key=\"" + ((ComboBoxObject) possibleVals.getSelectedItem()).id + "\"";

                    // Update the text in the document
                    ed.beginCompoundUndoableEdit();
                    int selectionOffset = ed.getSelectionStart();
                    ed.deleteSelection();
                    javax.swing.text.Document doc = ed.getDocument();
                    try {
                        if (selectionOffset > 0 && !doc.getText(selectionOffset - 1, 1).equals(" "))
                            result = " " + result;
                        if (selectionOffset > 0 && !doc.getText(selectionOffset, 1).equals(" ")
                                && !doc.getText(selectionOffset, 1).equals(">"))
                            result = result + " ";
                        doc.insertString(selectionOffset, result, javax.swing.text.SimpleAttributeSet.EMPTY);
                    } catch (javax.swing.text.BadLocationException b) {
                        // Okay if it doesn't work
                    }
                    ed.endCompoundUndoableEdit();

                    return;
                }
            });
            insert.setPreferredSize(new Dimension(100, 25));

            java.awt.GridLayout layoutOuter = new java.awt.GridLayout(3, 1);
            java.awt.FlowLayout layout = new java.awt.FlowLayout(FlowLayout.RIGHT); // rows, columns

            JPanel addPanel = new JPanel();
            JPanel addPanelInner = new JPanel();
            addPanel.setLayout(layoutOuter);
            addPanel.add(new JLabel("Search for last name, then choose a full name from the list below"));
            addPanelInner.setLayout(layout);
            addPanelInner.add(new JLabel("Search Last Name: "));
            addPanelInner.add(lastName);
            addPanelInner.add(search);
            addPanel.add(addPanelInner);
            addPanelInner = new JPanel();
            addPanelInner.setLayout(layout);
            addPanelInner.add(new JLabel("Narrow Search: "));
            addPanelInner.add(possibleVals);
            addPanelInner.add(insert);
            addPanel.add(addPanelInner);

            JOptionPane.showMessageDialog((java.awt.Frame) ws.getParentFrame(), addPanel, label,
                    JOptionPane.PLAIN_MESSAGE);

        }
    });
    this.add(search);

    // Find places
    search = new JMenuItem("Find Place");
    search.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent selection) {
            String label = "Find Place";

            final JTextField searchText = new JTextField("", 30);
            searchText.setPreferredSize(new Dimension(350, 25));
            //JTextField projectName = new JTextField("", 30);

            final JComboBox possibleVals = new JComboBox();
            possibleVals.setEnabled(false);
            possibleVals.setPreferredSize(new Dimension(350, 25));

            JButton search = new JButton("Search");
            search.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent selection) {
                    // query the database
                    try {
                        String json = "";
                        String line;
                        URL url = new URL(
                                "http://academical.village.virginia.edu/academical_db/places/find_places?term="
                                        + searchText.getText());
                        BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
                        while ((line = in.readLine()) != null) {
                            json += line;
                        }
                        JSONArray obj = new JSONArray(json);

                        // Read the JSON and update possibleVals
                        possibleVals.removeAllItems();
                        possibleVals.setEnabled(false);

                        for (int i = 0; i < obj.length(); i++) {
                            JSONObject cur = obj.getJSONObject(i);
                            String id = String.format("PL%04d", cur.getInt("value"));
                            String name = cur.getString("label") + " (" + id + ")";
                            possibleVals.addItem(new ComboBoxObject(name, id));
                            possibleVals.setEnabled(true);
                        }
                    } catch (Exception e) {
                        e.printStackTrace();
                        possibleVals.setEnabled(false);
                    }

                    return;
                }
            });
            search.setPreferredSize(new Dimension(100, 25));

            JButton insert = new JButton("Insert");
            insert.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent sel) {
                    // Insert into the page
                    // Get the selected value, grab the ID, then insert into the document

                    // Get the editor
                    WSTextEditorPage ed = null;
                    WSEditor editorAccess = ws
                            .getCurrentEditorAccess(StandalonePluginWorkspace.MAIN_EDITING_AREA);
                    if (editorAccess != null && editorAccess.getCurrentPage() instanceof WSTextEditorPage) {
                        ed = (WSTextEditorPage) editorAccess.getCurrentPage();
                    }

                    String result = "key=\"" + ((ComboBoxObject) possibleVals.getSelectedItem()).id + "\"";

                    // Update the text in the document
                    ed.beginCompoundUndoableEdit();
                    int selectionOffset = ed.getSelectionStart();
                    ed.deleteSelection();
                    javax.swing.text.Document doc = ed.getDocument();
                    try {
                        if (selectionOffset > 0 && !doc.getText(selectionOffset - 1, 1).equals(" "))
                            result = " " + result;
                        if (selectionOffset > 0 && !doc.getText(selectionOffset, 1).equals(" ")
                                && !doc.getText(selectionOffset, 1).equals(">"))
                            result = result + " ";
                        doc.insertString(selectionOffset, result, javax.swing.text.SimpleAttributeSet.EMPTY);
                    } catch (javax.swing.text.BadLocationException b) {
                        // Okay if it doesn't work
                    }
                    ed.endCompoundUndoableEdit();

                    return;
                }
            });
            insert.setPreferredSize(new Dimension(100, 25));

            java.awt.GridLayout layoutOuter = new java.awt.GridLayout(3, 1);
            java.awt.FlowLayout layout = new java.awt.FlowLayout(FlowLayout.RIGHT); // rows, columns

            JPanel addPanel = new JPanel();
            JPanel addPanelInner = new JPanel();
            addPanel.setLayout(layoutOuter);
            addPanel.add(new JLabel("Search for a place name, then choose one from the list below"));
            addPanelInner.setLayout(layout);
            addPanelInner.add(new JLabel("Search Keyword: "));
            addPanelInner.add(searchText);
            addPanelInner.add(search);
            addPanel.add(addPanelInner);
            addPanelInner = new JPanel();
            addPanelInner.setLayout(layout);
            addPanelInner.add(new JLabel("Narrow Search: "));
            addPanelInner.add(possibleVals);
            addPanelInner.add(insert);
            addPanel.add(addPanelInner);

            JOptionPane.showMessageDialog((java.awt.Frame) ws.getParentFrame(), addPanel, label,
                    JOptionPane.PLAIN_MESSAGE);

        }
    });
    this.add(search);

    // Find corporate bodies
    search = new JMenuItem("Find Corporate Body");
    search.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent selection) {
            String label = "Find Corporate Body";

            final JTextField searchText = new JTextField("", 30);
            searchText.setPreferredSize(new Dimension(350, 25));
            //JTextField projectName = new JTextField("", 30);

            final JComboBox possibleVals = new JComboBox();
            possibleVals.setEnabled(false);
            possibleVals.setPreferredSize(new Dimension(350, 25));

            JButton search = new JButton("Search");
            search.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent selection) {
                    // query the database
                    try {
                        String json = "";
                        String line;
                        URL url = new URL(
                                "http://academical.village.virginia.edu/academical_db/corporate_bodies/find?term="
                                        + searchText.getText());
                        BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
                        while ((line = in.readLine()) != null) {
                            json += line;
                        }
                        JSONArray obj = new JSONArray(json);

                        // Read the JSON and update possibleVals
                        possibleVals.removeAllItems();
                        possibleVals.setEnabled(false);

                        for (int i = 0; i < obj.length(); i++) {
                            JSONObject cur = obj.getJSONObject(i);
                            String id = String.format("CB%04d", cur.getInt("value"));
                            String name = cur.getString("label") + " (" + id + ")";
                            possibleVals.addItem(new ComboBoxObject(name, id));
                            possibleVals.setEnabled(true);
                        }
                    } catch (Exception e) {
                        e.printStackTrace();
                        possibleVals.setEnabled(false);
                    }

                    return;
                }
            });
            search.setPreferredSize(new Dimension(100, 25));

            JButton insert = new JButton("Insert");
            insert.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent sel) {
                    // Insert into the page
                    // Get the selected value, grab the ID, then insert into the document

                    // Get the editor
                    WSTextEditorPage ed = null;
                    WSEditor editorAccess = ws
                            .getCurrentEditorAccess(StandalonePluginWorkspace.MAIN_EDITING_AREA);
                    if (editorAccess != null && editorAccess.getCurrentPage() instanceof WSTextEditorPage) {
                        ed = (WSTextEditorPage) editorAccess.getCurrentPage();
                    }

                    String result = "key=\"" + ((ComboBoxObject) possibleVals.getSelectedItem()).id + "\"";

                    // Update the text in the document
                    ed.beginCompoundUndoableEdit();
                    int selectionOffset = ed.getSelectionStart();
                    ed.deleteSelection();
                    javax.swing.text.Document doc = ed.getDocument();
                    try {
                        if (selectionOffset > 0 && !doc.getText(selectionOffset - 1, 1).equals(" "))
                            result = " " + result;
                        if (selectionOffset > 0 && !doc.getText(selectionOffset, 1).equals(" ")
                                && !doc.getText(selectionOffset, 1).equals(">"))
                            result = result + " ";
                        doc.insertString(selectionOffset, result, javax.swing.text.SimpleAttributeSet.EMPTY);
                    } catch (javax.swing.text.BadLocationException b) {
                        // Okay if it doesn't work
                    }
                    ed.endCompoundUndoableEdit();

                    return;
                }
            });
            insert.setPreferredSize(new Dimension(100, 25));

            java.awt.GridLayout layoutOuter = new java.awt.GridLayout(3, 1);
            java.awt.FlowLayout layout = new java.awt.FlowLayout(FlowLayout.RIGHT); // rows, columns

            JPanel addPanel = new JPanel();
            JPanel addPanelInner = new JPanel();
            addPanel.setLayout(layoutOuter);
            addPanel.add(new JLabel("Search for a corporate body, then one from the list below"));
            addPanelInner.setLayout(layout);
            addPanelInner.add(new JLabel("Search Keyword: "));
            addPanelInner.add(searchText);
            addPanelInner.add(search);
            addPanel.add(addPanelInner);
            addPanelInner = new JPanel();
            addPanelInner.setLayout(layout);
            addPanelInner.add(new JLabel("Narrow Search: "));
            addPanelInner.add(possibleVals);
            addPanelInner.add(insert);
            addPanel.add(addPanelInner);

            JOptionPane.showMessageDialog((java.awt.Frame) ws.getParentFrame(), addPanel, label,
                    JOptionPane.PLAIN_MESSAGE);

        }
    });
    this.add(search);

    // Find Courses
    search = new JMenuItem("Find Course");
    search.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent selection) {
            String label = "Find Course";

            final JTextField searchText = new JTextField("", 30);
            searchText.setPreferredSize(new Dimension(350, 25));
            //JTextField projectName = new JTextField("", 30);

            final JComboBox possibleVals = new JComboBox();
            possibleVals.setEnabled(false);
            possibleVals.setPreferredSize(new Dimension(350, 25));

            JButton search = new JButton("Search");
            search.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent selection) {
                    // query the database
                    try {
                        String json = "";
                        String line;
                        URL url = new URL(
                                "http://academical.village.virginia.edu/academical_db/courses/find?term="
                                        + searchText.getText());
                        BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
                        while ((line = in.readLine()) != null) {
                            json += line;
                        }
                        JSONArray obj = new JSONArray(json);

                        // Read the JSON and update possibleVals
                        possibleVals.removeAllItems();
                        possibleVals.setEnabled(false);

                        for (int i = 0; i < obj.length(); i++) {
                            JSONObject cur = obj.getJSONObject(i);
                            String id = String.format("C%04d", cur.getInt("value"));
                            String name = cur.getString("label") + " (" + id + ")";
                            possibleVals.addItem(new ComboBoxObject(name, id));
                            possibleVals.setEnabled(true);
                        }
                    } catch (Exception e) {
                        e.printStackTrace();
                        possibleVals.setEnabled(false);
                    }

                    return;
                }
            });
            search.setPreferredSize(new Dimension(100, 25));

            JButton insert = new JButton("Insert");
            insert.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent sel) {
                    // Insert into the page
                    // Get the selected value, grab the ID, then insert into the document

                    // Get the editor
                    WSTextEditorPage ed = null;
                    WSEditor editorAccess = ws
                            .getCurrentEditorAccess(StandalonePluginWorkspace.MAIN_EDITING_AREA);
                    if (editorAccess != null && editorAccess.getCurrentPage() instanceof WSTextEditorPage) {
                        ed = (WSTextEditorPage) editorAccess.getCurrentPage();
                    }

                    String result = "key=\"" + ((ComboBoxObject) possibleVals.getSelectedItem()).id + "\"";

                    // Update the text in the document
                    ed.beginCompoundUndoableEdit();
                    int selectionOffset = ed.getSelectionStart();
                    ed.deleteSelection();
                    javax.swing.text.Document doc = ed.getDocument();
                    try {
                        if (selectionOffset > 0 && !doc.getText(selectionOffset - 1, 1).equals(" "))
                            result = " " + result;
                        if (selectionOffset > 0 && !doc.getText(selectionOffset, 1).equals(" ")
                                && !doc.getText(selectionOffset, 1).equals(">"))
                            result = result + " ";
                        doc.insertString(selectionOffset, result, javax.swing.text.SimpleAttributeSet.EMPTY);
                    } catch (javax.swing.text.BadLocationException b) {
                        // Okay if it doesn't work
                    }
                    ed.endCompoundUndoableEdit();

                    return;
                }
            });
            insert.setPreferredSize(new Dimension(100, 25));

            java.awt.GridLayout layoutOuter = new java.awt.GridLayout(3, 1);
            java.awt.FlowLayout layout = new java.awt.FlowLayout(FlowLayout.RIGHT); // rows, columns

            JPanel addPanel = new JPanel();
            JPanel addPanelInner = new JPanel();
            addPanel.setLayout(layoutOuter);
            addPanel.add(new JLabel("Search for a course, then choose one from the list below"));
            addPanelInner.setLayout(layout);
            addPanelInner.add(new JLabel("Search Keyword: "));
            addPanelInner.add(searchText);
            addPanelInner.add(search);
            addPanel.add(addPanelInner);
            addPanelInner = new JPanel();
            addPanelInner.setLayout(layout);
            addPanelInner.add(new JLabel("Narrow Search: "));
            addPanelInner.add(possibleVals);
            addPanelInner.add(insert);
            addPanel.add(addPanelInner);

            JOptionPane.showMessageDialog((java.awt.Frame) ws.getParentFrame(), addPanel, label,
                    JOptionPane.PLAIN_MESSAGE);

        }
    });
    this.add(search);
}

From source file:net.sf.jasperreports.engine.util.JEditorPaneRtfMarkupProcessor.java

@Override
public String convert(String srcText) {
    JEditorPane editorPane = new JEditorPane("text/rtf", srcText);
    editorPane.setEditable(false);// w  ww.  ja  v a  2s  . c  o m

    List<Element> elements = new ArrayList<Element>();

    Document document = editorPane.getDocument();

    Element root = document.getDefaultRootElement();
    if (root != null) {
        addElements(elements, root);
    }

    String chunk = null;
    Element element = null;
    int startOffset = 0;
    int endOffset = 0;

    JRStyledText styledText = new JRStyledText();
    styledText.setGlobalAttributes(new HashMap<Attribute, Object>());
    for (int i = 0; i < elements.size(); i++) {
        if (chunk != null) {
            styledText.append(chunk);
            styledText.addRun(
                    new JRStyledText.Run(getAttributes(element.getAttributes()), startOffset, endOffset));
        }

        chunk = null;
        element = elements.get(i);
        startOffset = element.getStartOffset();
        endOffset = element.getEndOffset();

        try {
            chunk = document.getText(startOffset, endOffset - startOffset);
        } catch (BadLocationException e) {
            if (log.isDebugEnabled()) {
                log.debug("Error converting markup.", e);
            }
        }

    }

    if (chunk != null && !"\n".equals(chunk)) {
        styledText.append(chunk);
        styledText.addRun(new JRStyledText.Run(getAttributes(element.getAttributes()), startOffset, endOffset));
    }

    return JRStyledTextParser.getInstance().write(styledText);
}

From source file:ch.zhaw.iamp.rct.ui.GrammarWindow.java

private void removeTabIfPossilbe(KeyEvent event, JTextComponent component) {
    try {//ww w  .  j a v a 2  s.  c o  m
        Document doc = component.getDocument();
        int caretPostion = component.getCaretPosition();
        int lineStartIndex = doc.getText(0, caretPostion).lastIndexOf('\n') + 1;
        lineStartIndex = lineStartIndex < 0 ? 0 : lineStartIndex;
        lineStartIndex = lineStartIndex >= doc.getLength() ? doc.getLength() - 1 : lineStartIndex;
        int scanEndIndex = lineStartIndex + 4 <= doc.getLength() ? lineStartIndex + 4 : doc.getLength();

        for (int i = 0; i < 4 && i + lineStartIndex < scanEndIndex; i++) {
            if (doc.getText(lineStartIndex, 1).matches(" ")) {
                doc.remove(lineStartIndex, 1);
            } else if (doc.getText(lineStartIndex, 1).matches("\t")) {
                doc.remove(lineStartIndex, 1);
                break;
            } else {
                break;
            }
        }

        event.consume();
    } catch (BadLocationException ex) {
        System.out.println("Could not insert a tab: " + ex.getMessage());
    }
}