Java Utililty Methods JTextArea

List of utility methods to do JTextArea

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Description

The list of methods to do JTextArea are organized into topic(s).

Method

voidcopyFontAndMargins(final JTextArea target, final JComponent source)
copy Font And Margins 
final Insets insets = source.getInsets();
target.setFont(source.getFont());
target.setMargin(insets);
JPanelcreateTabArea(JTextArea area, int width)
create Tab Area 
area.setEditable(false);
area.setOpaque(false);
area.setLineWrap(true);
final JPanel panel = new JPanel();
panel.setLayout(new BoxLayout(panel, BoxLayout.LINE_AXIS));
if (width > 0)
    panel.add(Box.createHorizontalStrut(width));
panel.add(area);
...
voiddisplay(JTextArea txtOutput, String text)
display 
if (txtOutput != null) {
    txtOutput.setText(txtOutput.getText() + "\n" + text);
} else {
    System.out.println(text);
intestimatedRows(JTextArea text)
estimated Rows 
return (int) (((text.getText().length() / (text.getColumns() > 0 ? text.getColumns() : 80)) + 1
        + text.getText().replaceAll("[^\\n]+", "").length()) / 2);
JTextAreafixTabKeys(JTextArea textArea)
fix Tab Keys 
return textArea;
StringgetAreaValue(JTextArea ta)
get Area Value 
String ret = ta.getText().trim();
if (!ret.equals("")) {
    return ret;
return null;
JScrollPanegetTextAreaScrollPaneContainer(JTextArea textArea, int nbLines)
get Text Area Scroll Pane Container 
JScrollPane ret = new JScrollPane();
textArea.setRows(nbLines);
textArea.setColumns(20);
ret.setViewportView(textArea);
return ret;
DimensiongetTextDimension(JTextArea textArea, Dimension maxDimension)
get Text Dimension 
Font font = textArea.getFont();
FontMetrics metrics = textArea.getGraphics().getFontMetrics(font);
int width = metrics.stringWidth(getLongestLine(textArea.getText())) + wPadding;
int height = (metrics.getHeight() + hPadding) * countLines(textArea.getText());
if (width > maxDimension.width)
    width = maxDimension.width;
if (height > maxDimension.height)
    height = maxDimension.height;
...
voidinitLogConsole(final JTextArea textArea)
init Log Console 
OutputStream textAreaStream = new OutputStream() {
    public void write(int b) throws IOException {
        clearTextArea(textArea);
        textArea.append(String.valueOf((char) b));
    public void write(byte b[]) throws IOException {
        clearTextArea(textArea);
        textArea.append(new String(b));
...
voidinitTextAreaEdit(JTextArea j1)
init Text Area Edit 
j1.setLineWrap(true);
j1.setWrapStyleWord(true);