Example usage for javax.swing.text ElementIterator next

List of usage examples for javax.swing.text ElementIterator next

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Introduction

In this page you can find the example usage for javax.swing.text ElementIterator next.

Prototype

public Element next()

Source Link

Document

Fetches the next Element .

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    JTextArea textArea = new JTextArea("word1 word2\nword3\nword4");
    Document doc = textArea.getDocument();
    ElementIterator it = new ElementIterator(doc.getDefaultRootElement());
    Element e;/* w w  w.j a  va  2s .  c  o m*/
    while ((e = it.next()) != null) {
        if (e.isLeaf()) {
            int rangeStart = e.getStartOffset();
            int rangeEnd = e.getEndOffset();

            String line = textArea.getText(rangeStart, rangeEnd - rangeStart);
            System.out.println(line);
        }
    }
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    URL url = new URL("http://www.google.com");
    URLConnection connection = url.openConnection();
    InputStream is = connection.getInputStream();
    InputStreamReader isr = new InputStreamReader(is);
    BufferedReader br = new BufferedReader(isr);

    HTMLEditorKit htmlKit = new HTMLEditorKit();
    HTMLDocument htmlDoc = (HTMLDocument) htmlKit.createDefaultDocument();
    HTMLEditorKit.Parser parser = new ParserDelegator();
    HTMLEditorKit.ParserCallback callback = htmlDoc.getReader(0);
    parser.parse(br, callback, true);/*from   w  w w .  j  a v  a  2s .  c  om*/

    Element element;
    ElementIterator iterator = new ElementIterator(htmlDoc);
    while ((element = iterator.next()) != null) {
        AttributeSet attributes = element.getAttributes();
        Object name = attributes.getAttribute(StyleConstants.NameAttribute);

        if ((name instanceof HTML.Tag) && (name == HTML.Tag.H1 || name == HTML.Tag.H2 || name == HTML.Tag.P)) {
            // Build up content text as it may be within multiple elements
            int count = element.getElementCount();
            for (int i = 0; i < count; i++) {
                Element child = element.getElement(i);
                AttributeSet childAttributes = child.getAttributes();
                if (childAttributes.getAttribute(StyleConstants.NameAttribute) == HTML.Tag.CONTENT) {
                    int startOffset = child.getStartOffset();
                    int endOffset = child.getEndOffset();
                    int length = endOffset - startOffset;
                    System.out.println(htmlDoc.getText(startOffset, length));
                }
            }
        }
    }
}

From source file:MainClass.java

public static void main(String args[]) throws Exception {
    URL url = new URL("http://www.java2s.com");
    URLConnection connection = url.openConnection();
    InputStream is = connection.getInputStream();
    InputStreamReader isr = new InputStreamReader(is);
    BufferedReader br = new BufferedReader(isr);

    HTMLEditorKit htmlKit = new HTMLEditorKit();
    HTMLDocument htmlDoc = (HTMLDocument) htmlKit.createDefaultDocument();
    HTMLEditorKit.Parser parser = new ParserDelegator();
    HTMLEditorKit.ParserCallback callback = htmlDoc.getReader(0);
    parser.parse(br, callback, true);/*from w  ww.ja v  a2 s .com*/

    ElementIterator iterator = new ElementIterator(htmlDoc);
    Element element;
    while ((element = iterator.next()) != null) {
        AttributeSet attributes = element.getAttributes();
        Object name = attributes.getAttribute(StyleConstants.NameAttribute);
        if ((name instanceof HTML.Tag) && (name == HTML.Tag.H1)) {
            StringBuffer text = new StringBuffer();
            int count = element.getElementCount();
            for (int i = 0; i < count; i++) {
                Element child = element.getElement(i);
                AttributeSet childAttributes = child.getAttributes();
                if (childAttributes.getAttribute(StyleConstants.NameAttribute) == HTML.Tag.CONTENT) {
                    int startOffset = child.getStartOffset();
                    int endOffset = child.getEndOffset();
                    int length = endOffset - startOffset;
                    text.append(htmlDoc.getText(startOffset, length));
                }
            }
            System.out.println(name + ": " + text.toString());
        }
    }
}

From source file:ElementIteratorExample.java

public static void main(String args[]) throws Exception {

    if (args.length != 1) {
        System.err.println("Usage: java ElementIteratorExample input-URL");
    }/*w  ww. j  ava2s  . c o  m*/

    // Load HTML file synchronously
    URL url = new URL(args[0]);
    URLConnection connection = url.openConnection();
    InputStream is = connection.getInputStream();
    InputStreamReader isr = new InputStreamReader(is);
    BufferedReader br = new BufferedReader(isr);

    HTMLEditorKit htmlKit = new HTMLEditorKit();
    HTMLDocument htmlDoc = (HTMLDocument) htmlKit.createDefaultDocument();
    HTMLEditorKit.Parser parser = new ParserDelegator();
    HTMLEditorKit.ParserCallback callback = htmlDoc.getReader(0);
    parser.parse(br, callback, true);

    // Parse
    ElementIterator iterator = new ElementIterator(htmlDoc);
    Element element;
    while ((element = iterator.next()) != null) {
        AttributeSet attributes = element.getAttributes();
        Object name = attributes.getAttribute(StyleConstants.NameAttribute);
        if ((name instanceof HTML.Tag)
                && ((name == HTML.Tag.H1) || (name == HTML.Tag.H2) || (name == HTML.Tag.H3))) {
            // Build up content text as it may be within multiple elements
            StringBuffer text = new StringBuffer();
            int count = element.getElementCount();
            for (int i = 0; i < count; i++) {
                Element child = element.getElement(i);
                AttributeSet childAttributes = child.getAttributes();
                if (childAttributes.getAttribute(StyleConstants.NameAttribute) == HTML.Tag.CONTENT) {
                    int startOffset = child.getStartOffset();
                    int endOffset = child.getEndOffset();
                    int length = endOffset - startOffset;
                    text.append(htmlDoc.getText(startOffset, length));
                }
            }
            System.out.println(name + ": " + text.toString());
        }
    }
    System.exit(0);
}

From source file:ElementSample.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Element Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    final JTextArea textArea = new JTextArea();
    JScrollPane scrollPane = new JScrollPane(textArea);

    JButton button = new JButton("Show Elements");
    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            Document document = textArea.getDocument();
            ElementIterator iterator = new ElementIterator(document);
            Element element = iterator.first();
            while (element != null) {
                System.out.println(element.getStartOffset());
                element = iterator.next();
            }//  www  . jav  a 2 s .  c  o m
        }
    };
    button.addActionListener(actionListener);

    frame.add(scrollPane, BorderLayout.CENTER);
    frame.add(button, BorderLayout.SOUTH);

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

From source file:ElementSample.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Element Example");
    Container content = frame.getContentPane();

    final JTextArea textArea = new JTextArea();
    JScrollPane scrollPane = new JScrollPane(textArea);

    JButton button = new JButton("Show Elements");
    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            Document document = textArea.getDocument();
            ElementIterator iterator = new ElementIterator(document);
            Element element = iterator.first();
            while (element != null) {
                System.out.println(element.getStartOffset());
                element = iterator.next();
            }//ww  w.  j a v a 2 s .  c  o m
        }
    };
    button.addActionListener(actionListener);

    content.add(scrollPane, BorderLayout.CENTER);
    content.add(button, BorderLayout.SOUTH);

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

From source file:MainClass.java

public static void main(final String args[]) {
    JFrame frame = new JFrame("Element Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    final JTextArea textArea = new JTextArea();
    JScrollPane scrollPane = new JScrollPane(textArea);

    JButton button = new JButton("Show Elements");
    ActionListener actionListener = new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            Document document = textArea.getDocument();
            ElementIterator iterator = new ElementIterator(document);
            Element element = iterator.first();
            while (element != null) {
                System.out.println(element.getStartOffset());
                element = iterator.next();
            }//  w  ww .j  a va2  s.  c  o m
        }
    };
    button.addActionListener(actionListener);

    frame.add(scrollPane, BorderLayout.CENTER);
    frame.add(button, BorderLayout.SOUTH);

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

}

From source file:LiveParenMatcher.java

public void removeUpdate_2(DocumentEvent de) {
    // print some debugging information before matching the parens
    ElementIterator iter = new ElementIterator(de.getDocument());

    for (Element elem = iter.first(); elem != null; elem = iter.next()) {
        DocumentEvent.ElementChange change = de.getChange(elem);
        if (change != null) { // null means there was no change in elem
            System.out.println("Element " + elem.getName() + " (depth " + iter.depth()
                    + ") changed its children: " + change.getChildrenRemoved().length + " children removed, "
                    + change.getChildrenAdded().length + " children added.\n");
        }//from  w  w  w .j  av  a2s.  com
    }
    SwingUtilities.invokeLater(this); // will call run()
}

From source file:EditorPaneExample16.java

public Heading getNextHeading(Document doc, ElementIterator iter) {
    Element elem;/* ww  w  .j a va 2  s  . com*/

    while ((elem = iter.next()) != null) {
        AttributeSet attrs = elem.getAttributes();
        Object type = attrs.getAttribute(StyleConstants.NameAttribute);
        int level = getHeadingLevel(type);
        if (level > 0) {
            // It is a heading - get the text
            String headingText = "";
            int count = elem.getElementCount();
            for (int i = 0; i < count; i++) {
                Element child = elem.getElement(i);
                AttributeSet cattrs = child.getAttributes();
                if (cattrs.getAttribute(StyleConstants.NameAttribute) == HTML.Tag.CONTENT) {
                    try {
                        int offset = child.getStartOffset();
                        headingText += doc.getText(offset, child.getEndOffset() - offset);
                    } catch (BadLocationException e) {
                    }
                }
            }
            headingText = headingText.trim();
            return new Heading(headingText, level, elem.getStartOffset());
        }
    }
    return null;
}

From source file:EditorPaneExample16.java

public URL[] findLinks(Document doc, String protocol) {
    Vector links = new Vector();
    Vector urlNames = new Vector();
    URL baseURL = (URL) doc.getProperty(Document.StreamDescriptionProperty);

    if (doc instanceof HTMLDocument) {
        Element elem = doc.getDefaultRootElement();
        ElementIterator iterator = new ElementIterator(elem);

        while ((elem = iterator.next()) != null) {
            AttributeSet attrs = elem.getAttributes();
            Object link = attrs.getAttribute(HTML.Tag.A);
            if (link instanceof AttributeSet) {
                Object linkAttr = ((AttributeSet) link).getAttribute(HTML.Attribute.HREF);
                if (linkAttr instanceof String) {
                    try {
                        URL linkURL = new URL(baseURL, (String) linkAttr);
                        if (protocol == null || protocol.equalsIgnoreCase(linkURL.getProtocol())) {
                            String linkURLName = linkURL.toString();
                            if (urlNames.contains(linkURLName) == false) {
                                urlNames.addElement(linkURLName);
                                links.addElement(linkURL);
                            }/*from   w  ww.java  2 s . com*/
                        }
                    } catch (MalformedURLException e) {
                        // Ignore invalid links
                    }
                }
            }
        }
    }

    URL[] urls = new URL[links.size()];
    links.copyInto(urls);
    links.removeAllElements();
    urlNames.removeAllElements();

    return urls;
}