Examples with Caret javax.swing.text.Caret used on opensource projects

Example 16 with Caret

use of javax.swing.text.Caret in project java-swing-tips by aterai.

the class TextAreaHandler method fire.

private void fire(Object c) {
    if (c instanceof JTextComponent) {
        JTextComponent tc = (JTextComponent) c;
        Caret caret = tc.getCaret();
        int d = caret.getDot();
        int m = caret.getMark();
        // LOGGER.info(() -> String.format("%s / %s", m, d));
        if (d != m && (dot != d || mark != m)) {
            Optional.ofNullable(tc.getSelectedText()).ifPresent(str -> {
                LOGGER.info(() -> str);
                // StringSelection data = new StringSelection(str);
                // Toolkit.getDefaultToolkit().getSystemClipboard().setContents(data, data);
                tc.copy();
            });
        }
        dot = d;
        mark = m;
    }
}

Example 17 with Caret

use of javax.swing.text.Caret in project java-swing-tips by aterai.

the class LineCursorTextArea method updateUI.

// public LineCursorTextArea(String text, int rows, int columns) {
// super(text, rows, columns);
// }
@Override
public void updateUI() {
    super.updateUI();
    Caret caret = new DefaultCaret() {

        // [UnsynchronizedOverridesSynchronized]
        // Unsynchronized method damage overrides synchronized method in DefaultCaret
        @SuppressWarnings("PMD.AvoidSynchronizedAtMethodLevel")
        @Override
        protected synchronized void damage(Rectangle r) {
            if (Objects.nonNull(r)) {
                JTextComponent c = getComponent();
                x = 0;
                y = r.y;
                width = c.getSize().width;
                height = r.height;
                c.repaint();
            }
        }
    };
    // caret.setBlinkRate(getCaret().getBlinkRate());
    caret.setBlinkRate(UIManager.getInt("TextArea.caretBlinkRate"));
    setCaret(caret);
}

Example 18 with Caret

use of javax.swing.text.Caret in project java-swing-tips by aterai.

the class LineCursorTextArea method paintComponent.

@Override
protected void paintComponent(Graphics g) {
    super.paintComponent(g);
    Caret c = getCaret();
    if (c instanceof DefaultCaret) {
        Graphics2D g2 = (Graphics2D) g.create();
        Rectangle r = SwingUtilities.calculateInnerArea(this, null);
        DefaultCaret caret = (DefaultCaret) c;
        int y = caret.y + caret.height - 1;
        g2.setPaint(LINE_COLOR);
        g2.drawLine(r.x, y, (int) r.getMaxX(), y);
        g2.dispose();
    }
}

Example 19 with Caret

use of javax.swing.text.Caret in project java-swing-tips by aterai.

the class HighlightCursorTextArea method updateUI.

@Override
public void updateUI() {
    super.updateUI();
    setOpaque(false);
    Caret caret = new DefaultCaret() {

        // [UnsynchronizedOverridesSynchronized]
        // Unsynchronized method damage overrides synchronized method in DefaultCaret
        @SuppressWarnings("PMD.AvoidSynchronizedAtMethodLevel")
        @Override
        protected synchronized void damage(Rectangle r) {
            if (Objects.nonNull(r)) {
                JTextComponent c = getComponent();
                x = 0;
                y = r.y;
                width = c.getSize().width;
                height = r.height;
                c.repaint();
            }
        }
    };
    // caret.setBlinkRate(getCaret().getBlinkRate());
    caret.setBlinkRate(UIManager.getInt("TextArea.caretBlinkRate"));
    setCaret(caret);
}

Example 20 with Caret

use of javax.swing.text.Caret in project java-swing-tips by aterai.

the class HighlightCursorTextArea method paintComponent.

@Override
protected void paintComponent(Graphics g) {
    Caret c = getCaret();
    if (c instanceof DefaultCaret) {
        Graphics2D g2 = (Graphics2D) g.create();
        DefaultCaret caret = (DefaultCaret) c;
        Rectangle r = SwingUtilities.calculateInnerArea(this, rect);
        r.y = caret.y;
        r.height = caret.height;
        g2.setPaint(LINE_COLOR);
        g2.fill(r);
        g2.dispose();
    }
    super.paintComponent(g);
}