/*

File: CWCocoaComponent.java

Abstract:  Testcase for the NSColorWell CocoaComponent example.

Version: 1.0

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package apple.dts.samplecode.cwcocoacomponent;

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

import java.lang.reflect.Constructor;

import java.lang.reflect.Method;

import apple.dts.samplecode.cwcocoacomponent.event.*;

public class CWCocoaComponent extends JFrame implements ActionListener {

    protected JLabel centerLabel;

    protected JPanel textPanel;

    protected Component buttonOrWell;

    public static boolean ON_MAC_OS_X, TIGER14_OR_LATER;

    public CWCocoaComponent() {

        super("Java Frame");

    getContentPane().setLayout(new BorderLayout());

    centerLabel = new JLabel("This JLabel Could Use Some Color...", JLabel.CENTER);

    centerLabel.setFont(centerLabel.getFont().deriveFont(36f));

        textPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 15, 15));

    // Use reflection to install our JavaColorWell; no direct references are made to it

    // so the class is not even loaded on non-Mac systems, since it loads a native lib

    // built for Mac OS X as well as referencing com.apple.eawt.CocoaComponent

    // JavaColorWell requires Mac OS X Tiger

    if (TIGER14_OR_LATER) try {

        Class colorWellClass = ClassLoader.getSystemClassLoader().loadClass("apple.dts.samplecode.cwcocoacomponent.JavaColorWell");

        Class[] params = { ColorSelectionListener.class };

        Constructor cnst = colorWellClass.getConstructor(params);

        final JLabel finalCenterLabel = centerLabel;

        Object args[] = { new ColorSelectionListener() {

        public void colorSelectionChange(ColorSelectionEvent cse) {

            // Change the label to the new color from the native NSColorWell/ColorPanel

            finalCenterLabel.setForeground(cse.getColor());

        }

        } };    

        buttonOrWell = (JavaColorWell)cnst.newInstance(args);

    } catch (Exception ex) {

        buttonOrWell = null;

    }

    if (buttonOrWell == null) { // Didn't create the colorwell; we're not on Mac OS X Tiger

        JButton jb = new JButton("Colors...");

        jb.addActionListener(this);

        buttonOrWell = jb;

    }

    textPanel.add(buttonOrWell);

    getContentPane().add(textPanel, BorderLayout.NORTH);

    getContentPane().add(centerLabel);

        setSize(800, 200);

    }

    // This listener is called on non-Tiger systems to show a JColorChooser in the absence of native integration 

    public void actionPerformed(ActionEvent ae) {

    java.awt.Color newColor = JColorChooser.showDialog(this, "Choose a new Label Color", centerLabel.getForeground());

    if (newColor != null) {

        centerLabel.setForeground(newColor);

    }

    }

    public static void main(String args[]) {

    // Version / OS detection to make sure it's safe to load the ColorWell

    ON_MAC_OS_X = System.getProperty("os.name").toLowerCase().startsWith("mac os x");

    float osVersion = Float.parseFloat(System.getProperty("os.version").substring(0, 4));

    float javaVersion = Float.parseFloat(System.getProperty("java.version").substring(0,3));

    TIGER14_OR_LATER = ON_MAC_OS_X && (osVersion >= 10.4f) && (javaVersion >= 1.4f);

    // Turn off CocoaComponent compatibility in the code to save time on stage

    System.setProperty("com.apple.eawt.CocoaComponent.CompatibilityMode", "false");

        new CWCocoaComponent().setVisible(true);

    }

}