Java Code Examples for javax.swing.text.Element#getName()

The following examples show how to use javax.swing.text.Element#getName() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: HTML.java    From spotbugs with GNU Lesser General Public License v2.1 6 votes vote down vote up
@Override
protected void endTag(Element elem) throws IOException {
    String name = elem.getName();
    if ("p".equals(name)) {
        writeLineSeparator();
        indent();
    } else if ("pre".equals(name)) {
        inPre = false;
    } else if ("ul".equals(name)) {
        super.decrIndent();
        writeLineSeparator();
        indent();
    } else if ("li".equals(name)) {
        super.decrIndent();
        writeLineSeparator();
        indent();
    }
}
 
Example 2
Source File: KTextEdit.java    From stendhal with GNU General Public License v2.0 6 votes vote down vote up
@Override
public View create(Element elem) {
	String kind = elem.getName();
	if (kind != null) {
		if (kind.equals(AbstractDocument.ContentElementName)) {
			return new WrapLabelView(elem);
		} else if (kind.equals(AbstractDocument.ParagraphElementName)) {
			return new ParagraphView(elem);
		} else if (kind.equals(AbstractDocument.SectionElementName)) {
			return new BoxView(elem, View.Y_AXIS);
		} else if (kind.equals(StyleConstants.ComponentElementName)) {
			return new ComponentView(elem);
		} else if (kind.equals(StyleConstants.IconElementName)) {
			return new IconView(elem);
		}
	}

	// default to text display
	return new LabelView(elem);
}
 
Example 3
Source File: GlyphVectorEditorKit.java    From PolyGlot with MIT License 6 votes vote down vote up
public View create(Element elem) {
    String kind = elem.getName();
    if (kind != null) {
        if (kind.equals(AbstractDocument.ContentElementName)) {
            return new PainterLabelView(elem);
        }
        else if (kind.equals(AbstractDocument.ParagraphElementName)) {
            return new ParagraphView(elem);
        }
        else if (kind.equals(AbstractDocument.SectionElementName)) {
            return new BoxView(elem, View.Y_AXIS);
        }
        else if (kind.equals(StyleConstants.ComponentElementName)) {
            return new ComponentView(elem);
        }
        else if (kind.equals(StyleConstants.IconElementName)) {
            return new IconView(elem);
        }
    }

    // default to text display
    return new LabelView(elem);
}
 
Example 4
Source File: HTML.java    From spotbugs with GNU Lesser General Public License v2.1 6 votes vote down vote up
@Override
protected void startTag(Element elem) throws IOException {
    String name = elem.getName();
    startingParagraph = true;
    if ("ul".equals(name)) {
        super.incrIndent();
        write("  ");
    } else if ("pre".equals(name)) {
        inPre = true;
    } else if ("li".equals(name)) {
        super.incrIndent();
        write("* ");
    } /*else if (name.equals("p")) {
      
      }*/
}
 
Example 5
Source File: WrapEditorKit.java    From PacketProxy with Apache License 2.0 6 votes vote down vote up
public View create(Element elem) {
	String kind = elem.getName();
	if (kind != null) {
		if (kind.equals(AbstractDocument.ContentElementName)) {
			return new WrapLabelView(elem);
		} else if (kind.equals(AbstractDocument.ParagraphElementName)) {
			return new CustomParagraphView(elem);
		} else if (kind.equals(AbstractDocument.SectionElementName)) {
			return new BoxView(elem, View.Y_AXIS);
		} else if (kind.equals(StyleConstants.ComponentElementName)) {
			return new ComponentView(elem);
		} else if (kind.equals(StyleConstants.IconElementName)) {
			return new IconView(elem);
		}
	}
	return new LabelView(elem);
}
 
Example 6
Source File: MainPanel.java    From java-swing-tips with MIT License 6 votes vote down vote up
@Override public View create(Element elem) {
  switch (elem.getName()) {
    // case AbstractDocument.ContentElementName:
    //   return new WhitespaceLabelView(elem);
    case AbstractDocument.ParagraphElementName:
      return new ParagraphWithEopmView(elem);
    case AbstractDocument.SectionElementName:
      return new BoxView(elem, View.Y_AXIS);
    case StyleConstants.ComponentElementName:
      return new ComponentView(elem);
    case StyleConstants.IconElementName:
      return new IconView(elem);
    default:
      return new WhitespaceLabelView(elem);
  }
}
 
Example 7
Source File: MainPanel.java    From java-swing-tips with MIT License 6 votes vote down vote up
@Override public View create(Element elem) {
  switch (elem.getName()) {
    // case AbstractDocument.ContentElementName:
    //   return new LabelView(elem);
    case AbstractDocument.ParagraphElementName:
      return new ParagraphView(elem) {
        @Override protected short getBottomInset() {
          return 5;
        }
      };
    case AbstractDocument.SectionElementName:
      return new BoxView(elem, View.Y_AXIS);
    case StyleConstants.ComponentElementName:
      return new ComponentView(elem);
    case StyleConstants.IconElementName:
      return new IconView(elem);
    default:
      return new LabelView(elem);
  }
}
 
Example 8
Source File: MainPanel.java    From java-swing-tips with MIT License 6 votes vote down vote up
@Override public View create(Element elem) {
  switch (elem.getName()) {
    // case AbstractDocument.ContentElementName:
    //   return new LabelView(elem);
    case AbstractDocument.ParagraphElementName:
      return new NoWrapParagraphView(elem);
    case AbstractDocument.SectionElementName:
      return new BoxView(elem, View.Y_AXIS);
    case StyleConstants.ComponentElementName:
      return new ComponentView(elem);
    case StyleConstants.IconElementName:
      return new IconView(elem);
    default:
      return new LabelView(elem);
  }
}
 
Example 9
Source File: WrapEditorKit.java    From hortonmachine with GNU General Public License v3.0 6 votes vote down vote up
public View create( Element elem ) {
    String kind = elem.getName();
    if (kind != null) {
        if (kind.equals(AbstractDocument.ContentElementName)) {
            return new WrapLabelView(elem);
        } else if (kind.equals(AbstractDocument.ParagraphElementName)) {
            return new ParagraphView(elem);
        } else if (kind.equals(AbstractDocument.SectionElementName)) {
            return new BoxView(elem, View.Y_AXIS);
        } else if (kind.equals(StyleConstants.ComponentElementName)) {
            return new ComponentView(elem);
        } else if (kind.equals(StyleConstants.IconElementName)) {
            return new IconView(elem);
        }
    }

    // default to text display
    return new LabelView(elem);
}
 
Example 10
Source File: bug8048110.java    From jdk8u-jdk with GNU General Public License v2.0 5 votes vote down vote up
private static Element findFirstElement(Element e, String name) {
    String elementName = e.getName();
    if (elementName != null && elementName.equalsIgnoreCase(name)) {
        return e;
    }
    for (int i = 0; i < e.getElementCount(); i++) {
        Element result = findFirstElement(e.getElement(i), name);
        if (result != null) {
            return result;
        }
    }
    return null;
}
 
Example 11
Source File: bug8048110.java    From openjdk-jdk8u with GNU General Public License v2.0 5 votes vote down vote up
private static Element findFirstElement(Element e, String name) {
    String elementName = e.getName();
    if (elementName != null && elementName.equalsIgnoreCase(name)) {
        return e;
    }
    for (int i = 0; i < e.getElementCount(); i++) {
        Element result = findFirstElement(e.getElement(i), name);
        if (result != null) {
            return result;
        }
    }
    return null;
}
 
Example 12
Source File: bug8048110.java    From jdk8u60 with GNU General Public License v2.0 5 votes vote down vote up
private static Element findFirstElement(Element e, String name) {
    String elementName = e.getName();
    if (elementName != null && elementName.equalsIgnoreCase(name)) {
        return e;
    }
    for (int i = 0; i < e.getElementCount(); i++) {
        Element result = findFirstElement(e.getElement(i), name);
        if (result != null) {
            return result;
        }
    }
    return null;
}
 
Example 13
Source File: bug8048110.java    From jdk8u-dev-jdk with GNU General Public License v2.0 5 votes vote down vote up
private static Element findFirstElement(Element e, String name) {
    String elementName = e.getName();
    if (elementName != null && elementName.equalsIgnoreCase(name)) {
        return e;
    }
    for (int i = 0; i < e.getElementCount(); i++) {
        Element result = findFirstElement(e.getElement(i), name);
        if (result != null) {
            return result;
        }
    }
    return null;
}
 
Example 14
Source File: bug8048110.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up
private static Element findFirstElement(Element e, String name) {
    String elementName = e.getName();
    if (elementName != null && elementName.equalsIgnoreCase(name)) {
        return e;
    }
    for (int i = 0; i < e.getElementCount(); i++) {
        Element result = findFirstElement(e.getElement(i), name);
        if (result != null) {
            return result;
        }
    }
    return null;
}
 
Example 15
Source File: ElementTreePanel.java    From jdk8u_jdk with GNU General Public License v2.0 4 votes vote down vote up
@SuppressWarnings("LeakingThisInConstructor")
public ElementTreePanel(JTextComponent editor) {
    this.editor = editor;

    Document document = editor.getDocument();

    // Create the tree.
    treeModel = new ElementTreeModel(document);
    tree = new JTree(treeModel) {

        @Override
        public String convertValueToText(Object value, boolean selected,
                boolean expanded, boolean leaf,
                int row, boolean hasFocus) {
            // Should only happen for the root
            if (!(value instanceof Element)) {
                return value.toString();
            }

            Element e = (Element) value;
            AttributeSet as = e.getAttributes().copyAttributes();
            String asString;

            if (as != null) {
                StringBuilder retBuffer = new StringBuilder("[");
                Enumeration names = as.getAttributeNames();

                while (names.hasMoreElements()) {
                    Object nextName = names.nextElement();

                    if (nextName != StyleConstants.ResolveAttribute) {
                        retBuffer.append(" ");
                        retBuffer.append(nextName);
                        retBuffer.append("=");
                        retBuffer.append(as.getAttribute(nextName));
                    }
                }
                retBuffer.append(" ]");
                asString = retBuffer.toString();
            } else {
                asString = "[ ]";
            }

            if (e.isLeaf()) {
                return e.getName() + " [" + e.getStartOffset() + ", " + e.
                        getEndOffset() + "] Attributes: " + asString;
            }
            return e.getName() + " [" + e.getStartOffset() + ", " + e.
                    getEndOffset() + "] Attributes: " + asString;
        }
    };
    tree.addTreeSelectionListener(this);
    tree.setDragEnabled(true);
    // Don't show the root, it is fake.
    tree.setRootVisible(false);
    // Since the display value of every node after the insertion point
    // changes every time the text changes and we don't generate a change
    // event for all those nodes the display value can become off.
    // This can be seen as '...' instead of the complete string value.
    // This is a temporary workaround, increase the needed size by 15,
    // hoping that will be enough.
    tree.setCellRenderer(new DefaultTreeCellRenderer() {

        @Override
        public Dimension getPreferredSize() {
            Dimension retValue = super.getPreferredSize();
            if (retValue != null) {
                retValue.width += 15;
            }
            return retValue;
        }
    });
    // become a listener on the document to update the tree.
    document.addDocumentListener(this);

    // become a PropertyChangeListener to know when the Document has
    // changed.
    editor.addPropertyChangeListener(this);

    // Become a CaretListener
    editor.addCaretListener(this);

    // configure the panel and frame containing it.
    setLayout(new BorderLayout());
    add(new JScrollPane(tree), BorderLayout.CENTER);

    // Add a label above tree to describe what is being shown
    JLabel label = new JLabel("Elements that make up the current document",
            SwingConstants.CENTER);

    label.setFont(new Font("Dialog", Font.BOLD, 14));
    add(label, BorderLayout.NORTH);

    setPreferredSize(new Dimension(400, 400));
}
 
Example 16
Source File: ElementTreePanel.java    From hottub with GNU General Public License v2.0 4 votes vote down vote up
@SuppressWarnings("LeakingThisInConstructor")
public ElementTreePanel(JTextComponent editor) {
    this.editor = editor;

    Document document = editor.getDocument();

    // Create the tree.
    treeModel = new ElementTreeModel(document);
    tree = new JTree(treeModel) {

        @Override
        public String convertValueToText(Object value, boolean selected,
                boolean expanded, boolean leaf,
                int row, boolean hasFocus) {
            // Should only happen for the root
            if (!(value instanceof Element)) {
                return value.toString();
            }

            Element e = (Element) value;
            AttributeSet as = e.getAttributes().copyAttributes();
            String asString;

            if (as != null) {
                StringBuilder retBuffer = new StringBuilder("[");
                Enumeration names = as.getAttributeNames();

                while (names.hasMoreElements()) {
                    Object nextName = names.nextElement();

                    if (nextName != StyleConstants.ResolveAttribute) {
                        retBuffer.append(" ");
                        retBuffer.append(nextName);
                        retBuffer.append("=");
                        retBuffer.append(as.getAttribute(nextName));
                    }
                }
                retBuffer.append(" ]");
                asString = retBuffer.toString();
            } else {
                asString = "[ ]";
            }

            if (e.isLeaf()) {
                return e.getName() + " [" + e.getStartOffset() + ", " + e.
                        getEndOffset() + "] Attributes: " + asString;
            }
            return e.getName() + " [" + e.getStartOffset() + ", " + e.
                    getEndOffset() + "] Attributes: " + asString;
        }
    };
    tree.addTreeSelectionListener(this);
    tree.setDragEnabled(true);
    // Don't show the root, it is fake.
    tree.setRootVisible(false);
    // Since the display value of every node after the insertion point
    // changes every time the text changes and we don't generate a change
    // event for all those nodes the display value can become off.
    // This can be seen as '...' instead of the complete string value.
    // This is a temporary workaround, increase the needed size by 15,
    // hoping that will be enough.
    tree.setCellRenderer(new DefaultTreeCellRenderer() {

        @Override
        public Dimension getPreferredSize() {
            Dimension retValue = super.getPreferredSize();
            if (retValue != null) {
                retValue.width += 15;
            }
            return retValue;
        }
    });
    // become a listener on the document to update the tree.
    document.addDocumentListener(this);

    // become a PropertyChangeListener to know when the Document has
    // changed.
    editor.addPropertyChangeListener(this);

    // Become a CaretListener
    editor.addCaretListener(this);

    // configure the panel and frame containing it.
    setLayout(new BorderLayout());
    add(new JScrollPane(tree), BorderLayout.CENTER);

    // Add a label above tree to describe what is being shown
    JLabel label = new JLabel("Elements that make up the current document",
            SwingConstants.CENTER);

    label.setFont(new Font("Dialog", Font.BOLD, 14));
    add(label, BorderLayout.NORTH);

    setPreferredSize(new Dimension(400, 400));
}
 
Example 17
Source File: ElementTreePanel.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 4 votes vote down vote up
@SuppressWarnings("LeakingThisInConstructor")
public ElementTreePanel(JTextComponent editor) {
    this.editor = editor;

    Document document = editor.getDocument();

    // Create the tree.
    treeModel = new ElementTreeModel(document);
    tree = new JTree(treeModel) {

        @Override
        public String convertValueToText(Object value, boolean selected,
                boolean expanded, boolean leaf,
                int row, boolean hasFocus) {
            // Should only happen for the root
            if (!(value instanceof Element)) {
                return value.toString();
            }

            Element e = (Element) value;
            AttributeSet as = e.getAttributes().copyAttributes();
            String asString;

            if (as != null) {
                StringBuilder retBuffer = new StringBuilder("[");
                Enumeration names = as.getAttributeNames();

                while (names.hasMoreElements()) {
                    Object nextName = names.nextElement();

                    if (nextName != StyleConstants.ResolveAttribute) {
                        retBuffer.append(" ");
                        retBuffer.append(nextName);
                        retBuffer.append("=");
                        retBuffer.append(as.getAttribute(nextName));
                    }
                }
                retBuffer.append(" ]");
                asString = retBuffer.toString();
            } else {
                asString = "[ ]";
            }

            if (e.isLeaf()) {
                return e.getName() + " [" + e.getStartOffset() + ", " + e.
                        getEndOffset() + "] Attributes: " + asString;
            }
            return e.getName() + " [" + e.getStartOffset() + ", " + e.
                    getEndOffset() + "] Attributes: " + asString;
        }
    };
    tree.addTreeSelectionListener(this);
    tree.setDragEnabled(true);
    // Don't show the root, it is fake.
    tree.setRootVisible(false);
    // Since the display value of every node after the insertion point
    // changes every time the text changes and we don't generate a change
    // event for all those nodes the display value can become off.
    // This can be seen as '...' instead of the complete string value.
    // This is a temporary workaround, increase the needed size by 15,
    // hoping that will be enough.
    tree.setCellRenderer(new DefaultTreeCellRenderer() {

        @Override
        public Dimension getPreferredSize() {
            Dimension retValue = super.getPreferredSize();
            if (retValue != null) {
                retValue.width += 15;
            }
            return retValue;
        }
    });
    // become a listener on the document to update the tree.
    document.addDocumentListener(this);

    // become a PropertyChangeListener to know when the Document has
    // changed.
    editor.addPropertyChangeListener(this);

    // Become a CaretListener
    editor.addCaretListener(this);

    // configure the panel and frame containing it.
    setLayout(new BorderLayout());
    add(new JScrollPane(tree), BorderLayout.CENTER);

    // Add a label above tree to describe what is being shown
    JLabel label = new JLabel("Elements that make up the current document",
            SwingConstants.CENTER);

    label.setFont(new Font("Dialog", Font.BOLD, 14));
    add(label, BorderLayout.NORTH);

    setPreferredSize(new Dimension(400, 400));
}
 
Example 18
Source File: ElementTreePanel.java    From openjdk-8 with GNU General Public License v2.0 4 votes vote down vote up
@SuppressWarnings("LeakingThisInConstructor")
public ElementTreePanel(JTextComponent editor) {
    this.editor = editor;

    Document document = editor.getDocument();

    // Create the tree.
    treeModel = new ElementTreeModel(document);
    tree = new JTree(treeModel) {

        @Override
        public String convertValueToText(Object value, boolean selected,
                boolean expanded, boolean leaf,
                int row, boolean hasFocus) {
            // Should only happen for the root
            if (!(value instanceof Element)) {
                return value.toString();
            }

            Element e = (Element) value;
            AttributeSet as = e.getAttributes().copyAttributes();
            String asString;

            if (as != null) {
                StringBuilder retBuffer = new StringBuilder("[");
                Enumeration names = as.getAttributeNames();

                while (names.hasMoreElements()) {
                    Object nextName = names.nextElement();

                    if (nextName != StyleConstants.ResolveAttribute) {
                        retBuffer.append(" ");
                        retBuffer.append(nextName);
                        retBuffer.append("=");
                        retBuffer.append(as.getAttribute(nextName));
                    }
                }
                retBuffer.append(" ]");
                asString = retBuffer.toString();
            } else {
                asString = "[ ]";
            }

            if (e.isLeaf()) {
                return e.getName() + " [" + e.getStartOffset() + ", " + e.
                        getEndOffset() + "] Attributes: " + asString;
            }
            return e.getName() + " [" + e.getStartOffset() + ", " + e.
                    getEndOffset() + "] Attributes: " + asString;
        }
    };
    tree.addTreeSelectionListener(this);
    tree.setDragEnabled(true);
    // Don't show the root, it is fake.
    tree.setRootVisible(false);
    // Since the display value of every node after the insertion point
    // changes every time the text changes and we don't generate a change
    // event for all those nodes the display value can become off.
    // This can be seen as '...' instead of the complete string value.
    // This is a temporary workaround, increase the needed size by 15,
    // hoping that will be enough.
    tree.setCellRenderer(new DefaultTreeCellRenderer() {

        @Override
        public Dimension getPreferredSize() {
            Dimension retValue = super.getPreferredSize();
            if (retValue != null) {
                retValue.width += 15;
            }
            return retValue;
        }
    });
    // become a listener on the document to update the tree.
    document.addDocumentListener(this);

    // become a PropertyChangeListener to know when the Document has
    // changed.
    editor.addPropertyChangeListener(this);

    // Become a CaretListener
    editor.addCaretListener(this);

    // configure the panel and frame containing it.
    setLayout(new BorderLayout());
    add(new JScrollPane(tree), BorderLayout.CENTER);

    // Add a label above tree to describe what is being shown
    JLabel label = new JLabel("Elements that make up the current document",
            SwingConstants.CENTER);

    label.setFont(new Font("Dialog", Font.BOLD, 14));
    add(label, BorderLayout.NORTH);

    setPreferredSize(new Dimension(400, 400));
}
 
Example 19
Source File: ElementTreePanel.java    From jdk8u-dev-jdk with GNU General Public License v2.0 4 votes vote down vote up
@SuppressWarnings("LeakingThisInConstructor")
public ElementTreePanel(JTextComponent editor) {
    this.editor = editor;

    Document document = editor.getDocument();

    // Create the tree.
    treeModel = new ElementTreeModel(document);
    tree = new JTree(treeModel) {

        @Override
        public String convertValueToText(Object value, boolean selected,
                boolean expanded, boolean leaf,
                int row, boolean hasFocus) {
            // Should only happen for the root
            if (!(value instanceof Element)) {
                return value.toString();
            }

            Element e = (Element) value;
            AttributeSet as = e.getAttributes().copyAttributes();
            String asString;

            if (as != null) {
                StringBuilder retBuffer = new StringBuilder("[");
                Enumeration names = as.getAttributeNames();

                while (names.hasMoreElements()) {
                    Object nextName = names.nextElement();

                    if (nextName != StyleConstants.ResolveAttribute) {
                        retBuffer.append(" ");
                        retBuffer.append(nextName);
                        retBuffer.append("=");
                        retBuffer.append(as.getAttribute(nextName));
                    }
                }
                retBuffer.append(" ]");
                asString = retBuffer.toString();
            } else {
                asString = "[ ]";
            }

            if (e.isLeaf()) {
                return e.getName() + " [" + e.getStartOffset() + ", " + e.
                        getEndOffset() + "] Attributes: " + asString;
            }
            return e.getName() + " [" + e.getStartOffset() + ", " + e.
                    getEndOffset() + "] Attributes: " + asString;
        }
    };
    tree.addTreeSelectionListener(this);
    tree.setDragEnabled(true);
    // Don't show the root, it is fake.
    tree.setRootVisible(false);
    // Since the display value of every node after the insertion point
    // changes every time the text changes and we don't generate a change
    // event for all those nodes the display value can become off.
    // This can be seen as '...' instead of the complete string value.
    // This is a temporary workaround, increase the needed size by 15,
    // hoping that will be enough.
    tree.setCellRenderer(new DefaultTreeCellRenderer() {

        @Override
        public Dimension getPreferredSize() {
            Dimension retValue = super.getPreferredSize();
            if (retValue != null) {
                retValue.width += 15;
            }
            return retValue;
        }
    });
    // become a listener on the document to update the tree.
    document.addDocumentListener(this);

    // become a PropertyChangeListener to know when the Document has
    // changed.
    editor.addPropertyChangeListener(this);

    // Become a CaretListener
    editor.addCaretListener(this);

    // configure the panel and frame containing it.
    setLayout(new BorderLayout());
    add(new JScrollPane(tree), BorderLayout.CENTER);

    // Add a label above tree to describe what is being shown
    JLabel label = new JLabel("Elements that make up the current document",
            SwingConstants.CENTER);

    label.setFont(new Font("Dialog", Font.BOLD, 14));
    add(label, BorderLayout.NORTH);

    setPreferredSize(new Dimension(400, 400));
}
 
Example 20
Source File: ElementTreePanel.java    From jdk8u-jdk with GNU General Public License v2.0 4 votes vote down vote up
@SuppressWarnings("LeakingThisInConstructor")
public ElementTreePanel(JTextComponent editor) {
    this.editor = editor;

    Document document = editor.getDocument();

    // Create the tree.
    treeModel = new ElementTreeModel(document);
    tree = new JTree(treeModel) {

        @Override
        public String convertValueToText(Object value, boolean selected,
                boolean expanded, boolean leaf,
                int row, boolean hasFocus) {
            // Should only happen for the root
            if (!(value instanceof Element)) {
                return value.toString();
            }

            Element e = (Element) value;
            AttributeSet as = e.getAttributes().copyAttributes();
            String asString;

            if (as != null) {
                StringBuilder retBuffer = new StringBuilder("[");
                Enumeration names = as.getAttributeNames();

                while (names.hasMoreElements()) {
                    Object nextName = names.nextElement();

                    if (nextName != StyleConstants.ResolveAttribute) {
                        retBuffer.append(" ");
                        retBuffer.append(nextName);
                        retBuffer.append("=");
                        retBuffer.append(as.getAttribute(nextName));
                    }
                }
                retBuffer.append(" ]");
                asString = retBuffer.toString();
            } else {
                asString = "[ ]";
            }

            if (e.isLeaf()) {
                return e.getName() + " [" + e.getStartOffset() + ", " + e.
                        getEndOffset() + "] Attributes: " + asString;
            }
            return e.getName() + " [" + e.getStartOffset() + ", " + e.
                    getEndOffset() + "] Attributes: " + asString;
        }
    };
    tree.addTreeSelectionListener(this);
    tree.setDragEnabled(true);
    // Don't show the root, it is fake.
    tree.setRootVisible(false);
    // Since the display value of every node after the insertion point
    // changes every time the text changes and we don't generate a change
    // event for all those nodes the display value can become off.
    // This can be seen as '...' instead of the complete string value.
    // This is a temporary workaround, increase the needed size by 15,
    // hoping that will be enough.
    tree.setCellRenderer(new DefaultTreeCellRenderer() {

        @Override
        public Dimension getPreferredSize() {
            Dimension retValue = super.getPreferredSize();
            if (retValue != null) {
                retValue.width += 15;
            }
            return retValue;
        }
    });
    // become a listener on the document to update the tree.
    document.addDocumentListener(this);

    // become a PropertyChangeListener to know when the Document has
    // changed.
    editor.addPropertyChangeListener(this);

    // Become a CaretListener
    editor.addCaretListener(this);

    // configure the panel and frame containing it.
    setLayout(new BorderLayout());
    add(new JScrollPane(tree), BorderLayout.CENTER);

    // Add a label above tree to describe what is being shown
    JLabel label = new JLabel("Elements that make up the current document",
            SwingConstants.CENTER);

    label.setFont(new Font("Dialog", Font.BOLD, 14));
    add(label, BorderLayout.NORTH);

    setPreferredSize(new Dimension(400, 400));
}