/*

 * Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 *   - Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 *

 *   - Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution.

 *

 *   - Neither the name of Oracle nor the names of its

 *     contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

/*

 * This source code is provided to illustrate the usage of a given feature

 * or technique and has been deliberately simplified. Additional steps

 * required for a production-quality application, such as security checks,

 * input validation and proper error handling, might not be present in

 * this sample code.

 */

import java.awt.BorderLayout;

import java.awt.Component;

import java.awt.Container;

import java.awt.Dimension;

import java.awt.Insets;

import java.awt.LayoutManager;

import java.util.ArrayList;

import java.util.Iterator;

import java.util.List;

import javax.swing.JComponent;

import javax.swing.JInternalFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

import javax.swing.border.EmptyBorder;

/**

 * This is a subclass of JInternalFrame which displays documents.

 *

 * @author Steve Wilson

 */

@SuppressWarnings("serial")

public class MetalworksDocumentFrame extends JInternalFrame {

    static int openFrameCount = 0;

    static final int offset = 30;

    public MetalworksDocumentFrame() {

        super("", true, true, true, true);

        openFrameCount++;

        setTitle("Untitled Message " + openFrameCount);

        JPanel top = new JPanel();

        top.setBorder(new EmptyBorder(10, 10, 10, 10));

        top.setLayout(new BorderLayout());

        top.add(buildAddressPanel(), BorderLayout.NORTH);

        JTextArea content = new JTextArea(15, 30);

        content.setBorder(new EmptyBorder(0, 5, 0, 5));

        content.setLineWrap(true);

        JScrollPane textScroller = new JScrollPane(content,

                JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,

                JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);

        top.add(textScroller, BorderLayout.CENTER);

        setContentPane(top);

        pack();

        setLocation(offset * openFrameCount, offset * openFrameCount);

    }

    private JPanel buildAddressPanel() {

        JPanel p = new JPanel();

        p.setLayout(new LabeledPairLayout());

        JLabel toLabel = new JLabel("To: ", JLabel.RIGHT);

        JTextField toField = new JTextField(25);

        p.add(toLabel, "label");

        p.add(toField, "field");

        JLabel subLabel = new JLabel("Subj: ", JLabel.RIGHT);

        JTextField subField = new JTextField(25);

        p.add(subLabel, "label");

        p.add(subField, "field");

        JLabel ccLabel = new JLabel("cc: ", JLabel.RIGHT);

        JTextField ccField = new JTextField(25);

        p.add(ccLabel, "label");

        p.add(ccField, "field");

        return p;

    }

    class LabeledPairLayout implements LayoutManager {

        List<Component> labels = new ArrayList<Component>();

        List<Component> fields = new ArrayList<Component>();

        int yGap = 2;

        int xGap = 2;

        public void addLayoutComponent(String s, Component c) {

            if (s.equals("label")) {

                labels.add(c);

            } else {

                fields.add(c);

            }

        }

        public void layoutContainer(Container c) {

            Insets insets = c.getInsets();

            int labelWidth = 0;

            for (Component comp : labels) {

                labelWidth = Math.max(labelWidth, comp.getPreferredSize().width);

            }

            int yPos = insets.top;

            Iterator<Component> fieldIter = fields.listIterator();

            Iterator<Component> labelIter = labels.listIterator();

            while (labelIter.hasNext() && fieldIter.hasNext()) {

                JComponent label = (JComponent) labelIter.next();

                JComponent field = (JComponent) fieldIter.next();

                int height = Math.max(label.getPreferredSize().height, field.

                        getPreferredSize().height);

                label.setBounds(insets.left, yPos, labelWidth, height);

                field.setBounds(insets.left + labelWidth + xGap,

                        yPos,

                        c.getSize().width - (labelWidth + xGap + insets.left

                        + insets.right),

                        height);

                yPos += (height + yGap);

            }

        }

        public Dimension minimumLayoutSize(Container c) {

            Insets insets = c.getInsets();

            int labelWidth = 0;

            for (Component comp : labels) {

                labelWidth = Math.max(labelWidth, comp.getPreferredSize().width);

            }

            int yPos = insets.top;

            Iterator<Component> labelIter = labels.listIterator();

            Iterator<Component> fieldIter = fields.listIterator();

            while (labelIter.hasNext() && fieldIter.hasNext()) {

                Component label = labelIter.next();

                Component field = fieldIter.next();

                int height = Math.max(label.getPreferredSize().height, field.

                        getPreferredSize().height);

                yPos += (height + yGap);

            }

            return new Dimension(labelWidth * 3, yPos);

        }

        public Dimension preferredLayoutSize(Container c) {

            Dimension d = minimumLayoutSize(c);

            d.width *= 2;

            return d;

        }

        public void removeLayoutComponent(Component c) {

        }

    }

}