// Authors: Stefan Haustein (SH), Michael Kroll (MK)

//



import java.awt.*;

import java.awt.event.*;

import de.kawt.*;





public class KawtDemo extends KAWTlet implements ActionListener {



    class LayoutPanel extends Panel implements ActionListener {

        

        LayoutManager saveBorder;

        KAWTlet kawtlet;

        

        LayoutPanel () {

            

            super (new BorderLayout ());

            

            addButton ("North", "grid");

            addButton ("West", "exit");

            addButton ("Center", "dialog");

            addButton ("East", "flow");

            addButton ("South", "border");

            saveBorder = getLayout ();

            validate ();

        }

        

        

        void addButton (String where, String label) {

            Button b = new Button (label);

            add (where, b);

            b.addActionListener (this);

            b.setActionCommand (label);

        }

        



    

        public void actionPerformed (ActionEvent e) {

            String cmd = e.getActionCommand ();

            if (cmd.equals ("grid")) 

                setLayout (new GridLayout (3, 2));

            else if (cmd.equals ("flow"))

                setLayout (new FlowLayout ());

            else if (cmd.equals ("border"))

                setLayout (saveBorder);

            else if (cmd.equals ("dialog")) {

                if (OptionDialog.showConfirmDialog 

                    (frame, "Do you like kAWT?", "Sample Dialog") 

                    == OptionDialog.NO_OPTION)

                    OptionDialog.showInputDialog 

                        (frame, "Why don't you like it?");

            }

            else if (cmd.equals ("exit")) { 

                notifyDestroyed ();

	    }

            validate ();

        }

    } 

    



    class MiscPanel extends Panel implements ActionListener, ItemListener { 

        

        Checkbox checkBox1;

        Checkbox checkBox2;

        Checkbox titlebox;

        TextField tf;



        MiscPanel () {

            super (new GridLayout (0, 1));



            CheckboxGroup group = new CheckboxGroup ();

            

            checkBox1 = new Checkbox ("Public text", group, false);

            checkBox1.addItemListener (this);

            checkBox2 = new Checkbox ("Hidden text", group, false);

            checkBox2.addItemListener (this);

            

            add (checkBox1); 

            add (checkBox2);

            

            titlebox = new Checkbox ("Show Frame Title", true);

            titlebox.addItemListener (this);

            add (titlebox);

        

            tf = new TextField ("Test");

            add (tf);

            

            Choice choice = new Choice ();

            choice.add ("red");

            choice.add ("green");

            choice.add ("blue");

            add (choice);

            addButton ("beep");

            addButton ("exit");

        }

    

        void addButton (String label) {

            Button b = new Button (label);

            add (b);

            b.addActionListener (this);

            b.setActionCommand (label);

        }

        

        public void itemStateChanged (ItemEvent ev) {

        

            if (ev.getSource () == titlebox) {

                

                if (ev.getStateChange () == ev.SELECTED) 

                    frame.setTitle ("kAWT Demo v0.9903");

                else 

                    frame.setTitle (null);



                //getFrame ().validate ();	

            }

            else if (ev.getStateChange () == ev.SELECTED) {

                tf.setEchoChar (ev.getSource () == checkBox2 ? '*' : '\0');

                tf.setText (tf.getText ());

            }

        }

    

    

        public void actionPerformed (ActionEvent ev) {

            if (ev.getActionCommand ().equals ("beep")) {

                Toolkit.getDefaultToolkit ().beep ();

            }

            else {

		destroyApp (true);

		notifyDestroyed ();

	    }

	}

    }



    class ScrollbarPanel extends Panel implements ActionListener {



        ScrollbarPanel () {

            super (new BorderLayout ());

            

            Panel center = new Panel (new GridLayout (0, 2));

            

            java.awt.List list = new java.awt.List ();

            

            for (int i= 0; i < 16; i++)	

                list.add ("item "+i);

            

            center.add (list);



            TextArea ta = new TextArea ();

            

            ta.setText ("This is an example of a simple TextArea with automatic word wrapping in this text block and some hard line breaks below.\n01\n02\n03\n04\n05\n06\n07\n08\n09\n10\n11\n12\n13\n14\n15\n16\n17\n18\n19\n20\n");

        

            center.add (ta);

            

            Button exitB = new Button ("exit");

            exitB.addActionListener (this);

            exitB.setActionCommand ("exit");

            add ("Center", center);

            add ("South", exitB);

            validate ();

        }

    



        public void actionPerformed (ActionEvent e) {

            String cmd = e.getActionCommand ();

            if (cmd.equals ("exit")) {

		destroyApp (true);

                notifyDestroyed ();

	    }

        }

    }

    



    Frame frame = new Frame ("kAWT Demo v1.0");;

    Dialog dialog;

    TabbedPane tabPane;



    public KawtDemo () {

        MenuBar menuBar = new MenuBar ();

        Menu menu = new Menu ("Info");

        MenuItem mi = new MenuItem ("About kAWT");

        mi.addActionListener (this);

        menu.add (mi);



        mi = new MenuItem ("Memory");

        mi.addActionListener (this);

        menu.add (mi);



	menuBar.add (menu);



        menu = new Menu ("Tabs");



	for (int i = 1; i <= 3; i++) {

	    mi = new MenuItem ("Tab "+i);

	    mi.addActionListener (this);

	    menu.add (mi);

	}

	menuBar.add (menu);

        frame.setMenuBar (menuBar);



        

        tabPane = new TabbedPane();

        tabPane.addTab ("Layout", new LayoutPanel ());

        //tabPane.addTab ("Color", new MemPanel ());

        tabPane.addTab ("Scroll", new ScrollbarPanel ());

        tabPane.addTab ("Misc", new MiscPanel ());

        frame.add ("Center", tabPane);

        

        //getRootPane ().add ("Center", new LayoutPanel ());



	frame.addWindowListener (new Closer (this));



        frame.pack ();

    }



    public void startApp () {

	frame.show ();

    }





    public void destroyApp (boolean uncond) {

	frame.dispose ();

    }

    





    public void actionPerformed (ActionEvent e) {

	String cmd = e.getActionCommand ();

	if (cmd.equals ("About kAWT")) {

	    OptionDialog.showMessageDialog 

		(frame, "For information about kAWT, please visit\nhttp://www.kawt.de");

	}

	else if (cmd.equals ("Memory")) {

	    int count = 0;

	    long free0 = Runtime.getRuntime().freeMemory ();

	    long free = free0;

	    while (true) {

		Runtime.getRuntime().gc();

		long newFree = Runtime.getRuntime().freeMemory ();

		if (newFree <= free) break;

		count ++;

		free = newFree;

	    }

	    OptionDialog.showMessageDialog 

		(frame, "ini: "+free0+"\ngc"+count+": "+free);

	}

	else {

	    int nr = Integer.parseInt (cmd.substring (4));

	    tabPane.setSelectedIndex (nr-1);

	}

    }



    public static void main (String [] argv) {

        new KawtDemo ().startApp ();

    }

    

    

}