Java Utililty Methods Swing Text Style

List of utility methods to do Swing Text Style

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Description

The list of methods to do Swing Text Style are organized into topic(s).

Method

StylecreateStyle(String logicalName)
create Style 
Style result = styleContext.addStyle(logicalName, null);
return result;
BooleangetBooleanValue(Element element, Object constant)
Checks whether an Element has a boolean property 
AttributeSet attributes = element.getAttributes();
return (attributes.getAttribute(constant) != null
        && ((Boolean) attributes.getAttribute(constant)).booleanValue());
IntegergetIntegerValue(Element element, Object constant)
Gets a integer value of an attribute (e.g. 
AttributeSet attributes = element.getAttributes();
Object obj = attributes.getAttribute(constant);
if (obj == null)
    return null;
return (Integer) obj;
intgetNextVisualPosition(final View v, final int pos, final Position.Bias b0, final int direction, final Position.Bias[] biasRet)
get Next Visual Position 
boolean toWest = (direction == SwingConstants.WEST);
Document document = v.getDocument();
int length = document.getLength();
if (!isBidirectional(document)) {
    return getTrivialVisualPosition(toWest, pos, b0, length, biasRet, true);
Element bidiRoot = ((AbstractDocument) document).getBidiRootElement();
Element elem = getElementByPosition(bidiRoot, pos);
...
booleanhasDifferentCharacterAttributes(AttributeSet style, AttributeSet base)
has Different Character Attributes 
return (StyleConstants.isBold(style) != StyleConstants.isBold(base))
        || (StyleConstants.isItalic(style) != StyleConstants.isItalic(base))
        || (StyleConstants.isUnderline(style) != StyleConstants.isUnderline(base))
        || (StyleConstants.getFontSize(style) != StyleConstants.getFontSize(base))
        || (!StyleConstants.getForeground(style).equals(StyleConstants.getForeground(base)));
booleanisCentered(AttributeSet attributes)
is Centered 
if (attributes != null) {
    if (attributes.getAttribute(StyleConstants.Alignment) != null) {
        Integer value = (Integer) attributes.getAttribute(StyleConstants.Alignment);
        if (value == StyleConstants.ALIGN_CENTER) {
            return true;
return false;
booleanisLTR(final int level)
is LTR 
return (level & 1) == 0;
voidoverrideStyle(Style originalStyle, Style newStyle)
override Style 
overrideStyleElement(originalStyle, newStyle, StyleConstants.FontFamily);
overrideStyleElement(originalStyle, newStyle, StyleConstants.Family);
overrideStyleElement(originalStyle, newStyle, StyleConstants.FontSize);
overrideStyleElement(originalStyle, newStyle, StyleConstants.Size);
overrideStyleElement(originalStyle, newStyle, StyleConstants.Foreground);
overrideStyleElement(originalStyle, newStyle, StyleConstants.Background);
overrideStyleElement(originalStyle, newStyle, StyleConstants.Bold);
overrideStyleElement(originalStyle, newStyle, StyleConstants.Italic);
...
AttributeSetresolveAttributes(AttributeSet style)
resolve Attributes 
SimpleAttributeSet set = new SimpleAttributeSet();
if (style != null) {
    Enumeration<?> names = style.getAttributeNames();
    Object value;
    Object key;
    while (names.hasMoreElements()) {
        key = names.nextElement();
        value = style.getAttribute(key);
...
StringunRTF(String s)
Extract text from RTF 
if (s == null)
    return null;
DefaultStyledDocument doc = new DefaultStyledDocument();
RTFEditorKit kit = new RTFEditorKit();
try {
    kit.read(new StringReader(s), doc, 0);
} catch (Exception ex) {
    throw new RuntimeException(ex);
...