Example usage for javax.swing.text Document getDefaultRootElement

Introduction

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

Prototype

public Element getDefaultRootElement();

Source Link

Document

Returns the root element that views should be based upon, unless some other mechanism for assigning views to element structures is provided.

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;/* www  .  j  a  v a2s .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);
        }
    }
}

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From source file:Main.java

private static final Element getLineElem(Document d, int offs) {
    Element map = d.getDefaultRootElement();
    int index = map.getElementIndex(offs);
    Element elem = map.getElement(index);
    if ((offs >= elem.getStartOffset()) && (offs < elem.getEndOffset())) {
        return elem;
    }//from   w w w  .  j  a v a  2 s  . co m
    return null;
}

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From source file:ShowHTMLViews.java

public static void displayModel(JTextComponent comp, PrintStream out) {
    Document doc = comp.getDocument();
    Element e = doc.getDefaultRootElement();
    displayElement(doc, e, 0, out);//w  w  w . j a v a 2s.  c o  m
}

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From source file:Main.java

protected static int getLineOfOffset(int offset, Document doc) throws BadLocationException {

    if (offset < 0 || doc == null) {
        throw new BadLocationException("", -1);
    } else if (offset > doc.getLength()) {
        throw new BadLocationException("", doc.getLength() + 1);
    } else {/*from ww  w.  j a  v a 2s .  com*/
        Element map = doc.getDefaultRootElement();
        return map.getElementIndex(offset);
    }
}

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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);//from  w w  w. ja  va  2  s. c om
            i++;
        } else {
            break;
        }
    }
    return whiteSpace.toString();
}

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From source file:ListenerSample.java

public void printInfo(DocumentEvent documentEvent) {
    System.out.println("Offset: " + documentEvent.getOffset());
    System.out.println("Length: " + documentEvent.getLength());
    DocumentEvent.EventType type = documentEvent.getType();
    String typeString = null;/* w w w.  j  a v a2s.co  m*/
    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.println("Type  : " + typeString);
    Document documentSource = documentEvent.getDocument();
    Element rootElement = documentSource.getDefaultRootElement();
    DocumentEvent.ElementChange change = documentEvent.getChange(rootElement);
    System.out.println("Change: " + change);
}

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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);/*from ww  w.  j a  v  a2 s  . com*/

    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);
}

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From source file:com.mirth.connect.client.ui.components.rsta.ac.js.MirthSourceCompletionProvider.java

@Override
public List<Completion> getCompletionsAt(JTextComponent tc, Point p) {
    Set<Completion> completions = new HashSet<Completion>();
    List<Completion> parentCompletions = super.getCompletionsAt(tc, p);
    if (CollectionUtils.isNotEmpty(parentCompletions)) {
        completions.addAll(parentCompletions);
    }// w w  w . j  a v a 2s.c  o m

    int offset = tc.viewToModel(p);
    if (offset < 0 || offset >= tc.getDocument().getLength()) {
        lastCompletionsAtText = null;
        lastParameterizedCompletionsAt = null;
        return new ArrayList<Completion>(completions);
    }

    Segment s = new Segment();
    Document doc = tc.getDocument();
    Element root = doc.getDefaultRootElement();
    int line = root.getElementIndex(offset);
    Element elem = root.getElement(line);
    int start = elem.getStartOffset();
    int end = elem.getEndOffset() - 1;

    try {

        doc.getText(start, end - start, s);

        // Get the valid chars before the specified offset.
        int startOffs = s.offset + (offset - start) - 1;
        while (startOffs >= s.offset && Character.isLetterOrDigit(s.array[startOffs])) {
            startOffs--;
        }

        // Get the valid chars at and after the specified offset.
        int endOffs = s.offset + (offset - start);
        while (endOffs < s.offset + s.count && Character.isLetterOrDigit(s.array[endOffs])) {
            endOffs++;
        }

        int len = endOffs - startOffs - 1;
        if (len <= 0) {
            lastParameterizedCompletionsAt = null;
            return new ArrayList<Completion>(completions);
        }
        String text = new String(s.array, startOffs + 1, len);

        if (text.equals(lastCompletionsAtText)) {
            if (CollectionUtils.isNotEmpty(lastParameterizedCompletionsAt)) {
                completions.addAll(lastParameterizedCompletionsAt);
            }
            return new ArrayList<Completion>(completions);
        }

        lastCompletionsAtText = text;
        lastParameterizedCompletionsAt = completionCache.getClassCompletions(tc, text);

        if (CollectionUtils.isNotEmpty(lastParameterizedCompletionsAt)) {
            completions.addAll(lastParameterizedCompletionsAt);
        }
        return new ArrayList<Completion>(completions);

    } catch (BadLocationException ble) {
        ble.printStackTrace(); // Never happens
    }

    lastCompletionsAtText = null;
    lastParameterizedCompletionsAt = null;

    return new ArrayList<Completion>(completions);
}

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

@Override
public String convert(String srcText) {
    JEditorPane editorPane = new JEditorPane("text/html", srcText);
    editorPane.setEditable(false);//from www.j  a  v a2 s. c o m

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

    Document document = editorPane.getDocument();

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

    int startOffset = 0;
    int endOffset = 0;
    int crtOffset = 0;
    String chunk = null;
    JRPrintHyperlink hyperlink = null;
    Element element = null;
    Element parent = null;
    boolean bodyOccurred = false;
    int[] orderedListIndex = new int[elements.size()];
    String whitespace = "    ";
    String[] whitespaces = new String[elements.size()];
    for (int i = 0; i < elements.size(); i++) {
        whitespaces[i] = "";
    }

    StringBuilder text = new StringBuilder();
    List<JRStyledText.Run> styleRuns = new ArrayList<>();

    for (int i = 0; i < elements.size(); i++) {
        if (bodyOccurred && chunk != null) {
            text.append(chunk);
            Map<Attribute, Object> styleAttributes = getAttributes(element.getAttributes());
            if (hyperlink != null) {
                styleAttributes.put(JRTextAttribute.HYPERLINK, hyperlink);
                hyperlink = null;
            }
            if (!styleAttributes.isEmpty()) {
                styleRuns.add(
                        new JRStyledText.Run(styleAttributes, startOffset + crtOffset, endOffset + crtOffset));
            }
        }

        chunk = null;
        element = elements.get(i);
        parent = element.getParentElement();
        startOffset = element.getStartOffset();
        endOffset = element.getEndOffset();
        AttributeSet attrs = element.getAttributes();

        Object elementName = attrs.getAttribute(AbstractDocument.ElementNameAttribute);
        Object object = (elementName != null) ? null : attrs.getAttribute(StyleConstants.NameAttribute);
        if (object instanceof HTML.Tag) {

            HTML.Tag htmlTag = (HTML.Tag) object;
            if (htmlTag == Tag.BODY) {
                bodyOccurred = true;
                crtOffset = -startOffset;
            } else if (htmlTag == Tag.BR) {
                chunk = "\n";
            } else if (htmlTag == Tag.OL) {
                orderedListIndex[i] = 0;
                String parentName = parent.getName().toLowerCase();
                whitespaces[i] = whitespaces[elements.indexOf(parent)] + whitespace;
                if (parentName.equals("li")) {
                    chunk = "";
                } else {
                    chunk = "\n";
                    ++crtOffset;
                }
            } else if (htmlTag == Tag.UL) {
                whitespaces[i] = whitespaces[elements.indexOf(parent)] + whitespace;

                String parentName = parent.getName().toLowerCase();
                if (parentName.equals("li")) {
                    chunk = "";
                } else {
                    chunk = "\n";
                    ++crtOffset;
                }

            } else if (htmlTag == Tag.LI) {

                whitespaces[i] = whitespaces[elements.indexOf(parent)];
                if (element.getElement(0) != null && (element.getElement(0).getName().toLowerCase().equals("ol")
                        || element.getElement(0).getName().toLowerCase().equals("ul"))) {
                    chunk = "";
                } else if (parent.getName().equals("ol")) {
                    int index = elements.indexOf(parent);
                    Object type = parent.getAttributes().getAttribute(HTML.Attribute.TYPE);
                    Object startObject = parent.getAttributes().getAttribute(HTML.Attribute.START);
                    int start = startObject == null ? 0
                            : Math.max(0, Integer.valueOf(startObject.toString()) - 1);
                    String suffix = "";

                    ++orderedListIndex[index];

                    if (type != null) {
                        switch (((String) type).charAt(0)) {
                        case 'A':
                            suffix = getOLBulletChars(orderedListIndex[index] + start, true);
                            break;
                        case 'a':
                            suffix = getOLBulletChars(orderedListIndex[index] + start, false);
                            break;
                        case 'I':
                            suffix = JRStringUtil.getRomanNumeral(orderedListIndex[index] + start, true);
                            break;
                        case 'i':
                            suffix = JRStringUtil.getRomanNumeral(orderedListIndex[index] + start, false);
                            break;
                        case '1':
                        default:
                            suffix = String.valueOf(orderedListIndex[index] + start);
                            break;
                        }
                    } else {
                        suffix += orderedListIndex[index] + start;
                    }
                    chunk = whitespaces[index] + suffix + DEFAULT_BULLET_SEPARATOR + "  ";

                } else {
                    chunk = whitespaces[elements.indexOf(parent)] + DEFAULT_BULLET_CHARACTER + "  ";
                }
                crtOffset += chunk.length();
            } else if (element instanceof LeafElement) {
                if (element instanceof RunElement) {
                    RunElement runElement = (RunElement) element;
                    AttributeSet attrSet = (AttributeSet) runElement.getAttribute(Tag.A);
                    if (attrSet != null) {
                        hyperlink = new JRBasePrintHyperlink();
                        hyperlink.setHyperlinkType(HyperlinkTypeEnum.REFERENCE);
                        hyperlink.setHyperlinkReference((String) attrSet.getAttribute(HTML.Attribute.HREF));
                        hyperlink.setLinkTarget((String) attrSet.getAttribute(HTML.Attribute.TARGET));
                    }
                }
                try {
                    chunk = document.getText(startOffset, endOffset - startOffset);
                } catch (BadLocationException e) {
                    if (log.isDebugEnabled()) {
                        log.debug("Error converting markup.", e);
                    }
                }
            }
        }
    }

    if (chunk != null) {
        if (!"\n".equals(chunk)) {
            text.append(chunk);
            Map<Attribute, Object> styleAttributes = getAttributes(element.getAttributes());
            if (hyperlink != null) {
                styleAttributes.put(JRTextAttribute.HYPERLINK, hyperlink);
                hyperlink = null;
            }
            if (!styleAttributes.isEmpty()) {
                styleRuns.add(
                        new JRStyledText.Run(styleAttributes, startOffset + crtOffset, endOffset + crtOffset));
            }
        } else {
            //final newline, not appending
            //check if there's any style run that would have covered it, that can happen if there's a <li> tag with style
            int length = text.length();
            for (ListIterator<JRStyledText.Run> it = styleRuns.listIterator(); it.hasNext();) {
                JRStyledText.Run run = it.next();
                //only looking at runs that end at the position where the newline should have been
                //we don't want to hide bugs in which runs that span after the text length are created
                if (run.endIndex == length + 1) {
                    if (run.startIndex < run.endIndex - 1) {
                        it.set(new JRStyledText.Run(run.attributes, run.startIndex, run.endIndex - 1));
                    } else {
                        it.remove();
                    }
                }
            }
        }
    }

    JRStyledText styledText = new JRStyledText(null, text.toString());
    for (JRStyledText.Run run : styleRuns) {
        styledText.addRun(run);
    }
    styledText.setGlobalAttributes(new HashMap<Attribute, Object>());

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

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From source file:Main.java

/**
 * Prints a <code>Document</code> using a monospaced font, word wrapping on
 * the characters ' ', '\t', '\n', ',', '.', and ';'.  This method is
 * expected to be called from Printable 'print(Graphics g)' functions.
 *
 * @param g The graphics context to write to.
 * @param doc The <code>javax.swing.text.Document</code> to print.
 * @param fontSize the point size to use for the monospaced font.
 * @param pageIndex The page number to print.
 * @param pageFormat The format to print the page with.
 * @param tabSize The number of spaces to expand tabs to.
 *
 * @see #printDocumentMonospaced/* ww  w .  j a v  a 2  s.  co  m*/
 */
public static int printDocumentMonospacedWordWrap(Graphics g, Document doc, int fontSize, int pageIndex,
        PageFormat pageFormat, int tabSize) {

    g.setColor(Color.BLACK);
    g.setFont(new Font("Monospaced", Font.PLAIN, fontSize));

    // Initialize our static variables (these are used by our tab expander below).
    tabSizeInSpaces = tabSize;
    fm = g.getFontMetrics();

    // Create our tab expander.
    //RPrintTabExpander tabExpander = new RPrintTabExpander();

    // Get width and height of characters in this monospaced font.
    int fontWidth = fm.charWidth('w'); // Any character will do here, since font is monospaced.
    int fontHeight = fm.getHeight();

    int MAX_CHARS_PER_LINE = (int) pageFormat.getImageableWidth() / fontWidth;
    int MAX_LINES_PER_PAGE = (int) pageFormat.getImageableHeight() / fontHeight;

    final int STARTING_LINE_NUMBER = MAX_LINES_PER_PAGE * pageIndex;

    // The (x,y) coordinate to print at (in pixels, not characters).
    // Since y is the baseline of where we'll start printing (not the top-left
    // corner), we offset it by the font's ascent ( + 1 just for good measure).
    xOffset = (int) pageFormat.getImageableX();
    int y = (int) pageFormat.getImageableY() + fm.getAscent() + 1;

    // A counter to keep track of the number of lines that WOULD HAVE been
    // printed if we were printing all lines.
    int numPrintedLines = 0;

    // Keep going while there are more lines in the document.
    currentDocLineNumber = 0; // The line number of the document we're currently on.
    rootElement = doc.getDefaultRootElement(); // To shorten accesses in our loop.
    numDocLines = rootElement.getElementCount(); // The number of lines in our document.
    while (currentDocLineNumber < numDocLines) {

        // Get the line we are going to print.
        String curLineString;
        Element currentLine = rootElement.getElement(currentDocLineNumber);
        int startOffs = currentLine.getStartOffset();
        try {
            curLineString = doc.getText(startOffs, currentLine.getEndOffset() - startOffs);
        } catch (BadLocationException ble) { // Never happens
            ble.printStackTrace();
            return Printable.NO_SUCH_PAGE;
        }

        // Remove newlines, because they end up as boxes if you don't; this is a monospaced font.
        curLineString = curLineString.replaceAll("\n", "");

        // Replace tabs with how many spaces they should be.
        if (tabSizeInSpaces == 0) {
            curLineString = curLineString.replaceAll("\t", "");
        } else {
            int tabIndex = curLineString.indexOf('\t');
            while (tabIndex > -1) {
                int spacesNeeded = tabSizeInSpaces - (tabIndex % tabSizeInSpaces);
                String replacementString = "";
                for (int i = 0; i < spacesNeeded; i++)
                    replacementString += ' ';
                // Note that "\t" is actually a regex for this method.
                curLineString = curLineString.replaceFirst("\t", replacementString);
                tabIndex = curLineString.indexOf('\t');
            }
        }

        // If this document line is too long to fit on one printed line on the page,
        // break it up into multpile lines.
        while (curLineString.length() > MAX_CHARS_PER_LINE) {

            int breakPoint = getLineBreakPoint(curLineString, MAX_CHARS_PER_LINE) + 1;

            numPrintedLines++;
            if (numPrintedLines > STARTING_LINE_NUMBER) {
                g.drawString(curLineString.substring(0, breakPoint), xOffset, y);
                y += fontHeight;
                if (numPrintedLines == STARTING_LINE_NUMBER + MAX_LINES_PER_PAGE)
                    return Printable.PAGE_EXISTS;
            }

            curLineString = curLineString.substring(breakPoint, curLineString.length());

        }

        currentDocLineNumber += 1; // We have printed one more line from the document.

        numPrintedLines++;
        if (numPrintedLines > STARTING_LINE_NUMBER) {
            g.drawString(curLineString, xOffset, y);
            y += fontHeight;
            if (numPrintedLines == STARTING_LINE_NUMBER + MAX_LINES_PER_PAGE)
                return Printable.PAGE_EXISTS;
        }

    }

    // Now, the whole document has been "printed."  Decide if this page had any text on it or not.
    if (numPrintedLines > STARTING_LINE_NUMBER)
        return Printable.PAGE_EXISTS;
    return Printable.NO_SUCH_PAGE;

}

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