How to Render HTML Strings in Swing: Beyond the DrawString Method

Swing HTML Rendering: Overcoming DrawString Limitations

In Swing, the drawString method offers limited support for HTML formatting. To render HTML strings effectively, alternative approaches are required.

One possible solution is to leverage the JLabel component, a specialized Swing component designed for displaying text. By adding the HTML-formatted string to a JLabel instance and assigning it to a CellRendererPane, it's possible to paint the string with HTML rendering.

This technique allows for greater control over the HTML rendering, including the ability to customize the color, font, and location of the rendered text. The example code provided creates a reusable JLabel component that can be painted repeatedly at different locations with varying colors, resulting in a visually appealing and dynamic HTML rendering:

public class PaintComponentTest extends JPanel {

    private JLabel renderer = new JLabel(s); // HTML-formatted string
    private CellRendererPane crp = new CellRendererPane();
    private Dimension dim;

    public PaintComponentTest() {
        dim = renderer.getPreferredSize();
        this.add(crp);
    }

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        for (int i = 0; i < N; i++) {
            renderer.setForeground(Color.getHSBColor((float) i / N, 1, 1));
            crp.paintComponent(g, renderer, this,
                i * dim.width, i * dim.height, dim.width, dim.height);
        }
    }
}

This enhanced approach provides a customizable and visually appealing solution for rendering HTML strings in Swing, addressing the limitations of the drawString method.

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