Scale a JCheckBox box

Question

I want to scale a JCheckBox e.g. equally to its set text's font size. For example when i increase the Font size the checkbox itself stays small but it should grow with the text or i want to set the size of the box myself:

JCheckBox chckbxTest = new JCheckBox("Test");
chckbxTest.setFont("Arial", Font.BOLD, 27));

If possible, I need the same functionality for JRadioButton. Unfortunately i haven't found any documentation regarding this functionality.

---

Solution:
The marked answer helped me to create a fully scalable own styled JCheckbox. The following example draws a simple rectangle filled with another rectangle when checked:

    [...]
     JCheckBox myCheckBox = new JCheckBox("Test");
     myCheckBox.setIcon(new SimpleCheckboxStyle(20));
    [...]

class SimpleCheckboxStyle implements Icon {

    int dim = 10;

    public SimpleCheckboxStyle (int dimension){
        this.dim = dimension;
    }

    protected int getDimension() {
        return dim;
    }

    public void paintIcon(Component component, Graphics g, int x, int y) {
        ButtonModel buttonModel = ((AbstractButton) component).getModel();

        int y_offset = (int) (component.getSize().getHeight() / 2) - (int) (getDimension() / 2);
        int x_offset = 2;

        if (buttonModel.isRollover()) {
            g.setColor(new Color(0, 60, 120));
        } else if (buttonModel.isRollover()) {
            g.setColor(Color.BLACK);
        } else {
            g.setColor(Color.DARK_GRAY);
        }
        g.fillRect(x_offset, y_offset, fontsize, fontsize);
        if (buttonModel.isPressed()) {
            g.setColor(Color.GRAY);
        } else if (buttonModel.isRollover()) {
            g.setColor(new Color(240, 240, 250));
        } else {
            g.setColor(Color.WHITE);
        }
        g.fillRect(1 + x_offset, y_offset + 1, fontsize - 2, fontsize - 2);
        if (buttonModel.isSelected()) {
            int r_x = 1;
            g.setColor(Color.GRAY);
            g.fillRect(x_offset + r_x + 3, y_offset + 3 + r_x, fontsize - (7 + r_x), fontsize - (7 + r_x));
        }
    }

    public int getIconWidth() {
        return getDimension();
    }

    public int getIconHeight() {
        return getDimension();
    }
}

Answer 1

For example when i increase the Font size the checkbox itself stays small but it should grow with the text or i want to set the size of the box myself

Then you need to provide custom icons for the font size of your text. See methods like:

setIcon(....)
setSelectedIcon(...)

You would need to do the same for a JRadioButton. Also, you would need different icons for each LAF.