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 *     notice, this list of conditions and the following disclaimer.
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 *   - Redistributions in binary form must reproduce the above copyright
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 *     from this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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import javax.swing.BoxLayout;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.border.Border;
import javax.swing.border.CompoundBorder;
import javax.swing.border.EmptyBorder;
import javax.swing.border.SoftBevelBorder;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;

import static java.nio.charset.StandardCharsets.UTF_8;

/**
 * A generic SwingSet2 demo module
 *
 * @author Jeff Dinkins
 */
public class DemoModule extends JFrame {

    // The preferred size of the demo
    private int PREFERRED_WIDTH = 680;
    private int PREFERRED_HEIGHT = 600;

    Border loweredBorder = new CompoundBorder(new SoftBevelBorder(SoftBevelBorder.LOWERED),
                                              new EmptyBorder(5,5,5,5));

    // Premade convenience dimensions, for use wherever you need 'em.
    public static Dimension HGAP2 = new Dimension(2,1);
    public static Dimension VGAP2 = new Dimension(1,2);

    public static Dimension HGAP5 = new Dimension(5,1);
    public static Dimension VGAP5 = new Dimension(1,5);

    public static Dimension HGAP10 = new Dimension(10,1);
    public static Dimension VGAP10 = new Dimension(1,10);

    public static Dimension HGAP15 = new Dimension(15,1);
    public static Dimension VGAP15 = new Dimension(1,15);

    public static Dimension HGAP20 = new Dimension(20,1);
    public static Dimension VGAP20 = new Dimension(1,20);

    public static Dimension HGAP25 = new Dimension(25,1);
    public static Dimension VGAP25 = new Dimension(1,25);

    public static Dimension HGAP30 = new Dimension(30,1);
    public static Dimension VGAP30 = new Dimension(1,30);

    private SwingSet2 swingset = null;
    private JPanel panel = null;
    private String resourceName = null;
    private String iconPath = null;
    private String sourceCode = null;

    public DemoModule(SwingSet2 swingset) {
        this(swingset, null, null);
    }

    public DemoModule(SwingSet2 swingset, String resourceName, String iconPath) {
        UIManager.put("swing.boldMetal", Boolean.FALSE);
        panel = new JPanel();
        panel.setLayout(new BorderLayout());

        this.resourceName = resourceName;
        this.iconPath = iconPath;
        this.swingset = swingset;

        loadSourceCode();
    }

    public String getResourceName() {
        return resourceName;
    }

    public JPanel getDemoPanel() {
        return panel;
    }

    public SwingSet2 getSwingSet2() {
        return swingset;
    }


    public String getString(String key) {

        if (getSwingSet2() != null) {
            return getSwingSet2().getString(key);
        }else{
            return "nada";
        }
    }

    public char getMnemonic(String key) {
        return (getString(key)).charAt(0);
    }

    public ImageIcon createImageIcon(String filename, String description) {
        if(getSwingSet2() != null) {
            return getSwingSet2().createImageIcon(filename, description);
        } else {
            String path = "/resources/images/" + filename;
            return new ImageIcon(getClass().getResource(path), description);
        }
    }


    public String getSourceCode() {
        return sourceCode;
    }

    public void loadSourceCode() {
        if(getResourceName() != null) {
            String filename = getResourceName() + ".java";
            sourceCode = new String("<html><body bgcolor=\"#ffffff\"><pre>");
            InputStream is;
            InputStreamReader isr;
            URL url;

            try {
                url = getClass().getResource(filename);
                is = url.openStream();
                isr = new InputStreamReader(is, UTF_8);
                BufferedReader reader = new BufferedReader(isr);

                // Read one line at a time, htmlize using super-spiffy
                // html java code formating utility from www.CoolServlets.com
                String line = reader.readLine();
                while(line != null) {
                    sourceCode += line + " \n ";
                    line = reader.readLine();
                }
                sourceCode += new String("</pre></body></html>");
            } catch (Exception ex) {
                sourceCode = "Could not load file: " + filename;
            }
        }
    }

    public String getName() {
        return getString(getResourceName() + ".name");
    };

    public Icon getIcon() {
        return createImageIcon(iconPath, getResourceName() + ".name");
    };

    public String getToolTip() {
        return getString(getResourceName() + ".tooltip");
    };

    public void mainImpl() {
        JFrame frame = new JFrame(getName());
        frame.getContentPane().setLayout(new BorderLayout());
        frame.getContentPane().add(getDemoPanel(), BorderLayout.CENTER);
        getDemoPanel().setPreferredSize(new Dimension(PREFERRED_WIDTH, PREFERRED_HEIGHT));
        frame.pack();
        frame.setVisible(true);
    }

    public JPanel createHorizontalPanel(boolean threeD) {
        JPanel p = new JPanel();
        p.setLayout(new BoxLayout(p, BoxLayout.X_AXIS));
        p.setAlignmentY(TOP_ALIGNMENT);
        p.setAlignmentX(LEFT_ALIGNMENT);
        if(threeD) {
            p.setBorder(loweredBorder);
        }
        return p;
    }

    public JPanel createVerticalPanel(boolean threeD) {
        JPanel p = new JPanel();
        p.setLayout(new BoxLayout(p, BoxLayout.Y_AXIS));
        p.setAlignmentY(TOP_ALIGNMENT);
        p.setAlignmentX(LEFT_ALIGNMENT);
        if(threeD) {
            p.setBorder(loweredBorder);
        }
        return p;
    }

    public static void main(String[] args) {
        DemoModule demo = new DemoModule(null);
        demo.mainImpl();
    }

    public void init() {
        getContentPane().setLayout(new BorderLayout());
        getContentPane().add(getDemoPanel(), BorderLayout.CENTER);
    }

    void updateDragEnabled(boolean dragEnabled) {}
}