Example usage for javax.swing JScrollBar getValueIsAdjusting

Introduction

In this page you can find the example usage for javax.swing JScrollBar getValueIsAdjusting.

Prototype

public boolean getValueIsAdjusting() 

Source Link

Document

True if the scrollbar knob is being dragged.

Usage

From source file:me.mayo.telnetkek.MainPanel.java

private void writeToConsoleImmediately(final ConsoleMessage message, final boolean isTelnetError) {
    SwingUtilities.invokeLater(() -> {
        if (isTelnetError && chkIgnoreErrors.isSelected()) {
            return;
        }/*from  w ww .ja va  2s.  com*/

        final StyledDocument styledDocument = mainOutput.getStyledDocument();

        int startLength = styledDocument.getLength();

        try {
            styledDocument.insertString(styledDocument.getLength(),
                    message.getMessage() + System.lineSeparator(),
                    StyleContext.getDefaultStyleContext().addAttribute(SimpleAttributeSet.EMPTY,
                            StyleConstants.Foreground, message.getColor()));
        } catch (BadLocationException ex) {
            throw new RuntimeException(ex);
        }

        if (MainPanel.this.chkAutoScroll.isSelected() && MainPanel.this.mainOutput.getSelectedText() == null) {
            final JScrollBar vScroll = mainOutputScoll.getVerticalScrollBar();

            if (!vScroll.getValueIsAdjusting()) {
                if (vScroll.getValue() + vScroll.getModel().getExtent() >= (vScroll.getMaximum() - 50)) {
                    MainPanel.this.mainOutput.setCaretPosition(startLength);

                    final Timer timer = new Timer(10, (ActionEvent ae) -> {
                        vScroll.setValue(vScroll.getMaximum());
                    });
                    timer.setRepeats(false);
                    timer.start();
                }
            }
        }
    });
}

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