Re: [Cdk-devel] example usage of Java2DRenderer

[Thorsten M. <Tho...@un...>]

> Hi, it looks my old 2D depiction codes don't work with the new  
> Java2DRenderer. Are there any examples of how to bring up a 2D image?  
> There is no test class for this class
This one did it for me:

public class RendererTest {
    private static class MoleculePanel extends JPanel {
        IMolecule m_mol;

        private final Renderer2DModel m_renderModel = new Renderer2DModel();

        private final Java2DRenderer m_renderer =
                new Java2DRenderer(m_renderModel);

        public MoleculePanel() {
            m_renderModel.setUseAntiAliasing(true);
            m_renderModel.setShowExplicitHydrogens(false);
            m_renderModel.setShowImplicitHydrogens(false);
            m_renderModel.setBackColor(null);
            m_renderModel.setShowAromaticity(true);
        }

        public void paint(final Graphics g) {
            super.paint(g);

            m_renderer.paintMolecule(m_mol, (Graphics2D)g, getBounds());
        }
    }

    public static void main(final String[] args) throws Exception {
        MDLReader reader = new MDLReader(new FileReader(args[0]));

        final IMolecule mol =
                (IMolecule)reader.read(NoNotificationChemObjectBuilder
                        .getInstance().newMolecule());

        StructureDiagramGenerator gen2d = new StructureDiagramGenerator(mol);
        gen2d.generateCoordinates();

        JFrame f = new JFrame("2D Renderer");
        MoleculePanel p = new MoleculePanel();
        p.m_mol = mol;
        f.getContentPane().add(p);
        f.setSize(100, 100);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setVisible(true);
    }
}

Thorsten