/*
 * Copyright 2002-2003 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package javax.swing.plaf.synth;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.BasicDesktopIconUI;
import java.beans.*;
import java.io.Serializable;
import sun.swing.plaf.synth.SynthUI;


/**
 * Synth L&F for a minimized window on a desktop.
 *
 * @author Joshua Outwater
 */
class SynthDesktopIconUI extends BasicDesktopIconUI implements SynthUI,
                                        ActionListener, PropertyChangeListener {
    private SynthStyle style;

    public static ComponentUI createUI(JComponent c)    {
        return new SynthDesktopIconUI();
    }

    protected void installComponents() {
        if (UIManager.getBoolean("InternalFrame.useTaskBar")) {
            iconPane = new JToggleButton(frame.getTitle(), frame.getFrameIcon()) {
                public String getToolTipText() {
                    return getText();
                }

                public JPopupMenu getComponentPopupMenu() {
                    return frame.getComponentPopupMenu();
                }
            };
            ToolTipManager.sharedInstance().registerComponent(iconPane);
            iconPane.setFont(desktopIcon.getFont());
            iconPane.setBackground(desktopIcon.getBackground());
            iconPane.setForeground(desktopIcon.getForeground());
        } else {
            iconPane = new SynthInternalFrameTitlePane(frame);
            iconPane.setName("InternalFrame.northPane");
        }
        desktopIcon.setLayout(new BorderLayout());
        desktopIcon.add(iconPane, BorderLayout.CENTER);
    }

    protected void installListeners() {
        super.installListeners();
        desktopIcon.addPropertyChangeListener(this);

        if (iconPane instanceof JToggleButton) {
            frame.addPropertyChangeListener(this);
            ((JToggleButton)iconPane).addActionListener(this);
        }
    }

    protected void uninstallListeners() {
        if (iconPane instanceof JToggleButton) {
            frame.removePropertyChangeListener(this);
        }
        desktopIcon.removePropertyChangeListener(this);
        super.uninstallListeners();
    }

    protected void installDefaults() {
        updateStyle(desktopIcon);
    }

    private void updateStyle(JComponent c) {
        SynthContext context = getContext(c, ENABLED);
        style = SynthLookAndFeel.updateStyle(context, this);
        context.dispose();
    }

    protected void uninstallDefaults() {
        SynthContext context = getContext(desktopIcon, ENABLED);
        style.uninstallDefaults(context);
        context.dispose();
        style = null;
    }

    public SynthContext getContext(JComponent c) {
        return getContext(c, getComponentState(c));
    }

    private SynthContext getContext(JComponent c, int state) {
        Region region = getRegion(c);
        return SynthContext.getContext(SynthContext.class, c, region,
                                       style, state);
    }

    private int getComponentState(JComponent c) {
        return SynthLookAndFeel.getComponentState(c);
    }

    Region getRegion(JComponent c) {
        return SynthLookAndFeel.getRegion(c);
    }

    public void update(Graphics g, JComponent c) {
        SynthContext context = getContext(c);

        SynthLookAndFeel.update(context, g);
        context.getPainter().paintDesktopIconBackground(context, g, 0, 0,
                                                  c.getWidth(), c.getHeight());
        paint(context, g);
        context.dispose();
    }

    public void paint(Graphics g, JComponent c) {
        SynthContext context = getContext(c);

        paint(context, g);
        context.dispose();
    }

    protected void paint(SynthContext context, Graphics g) {
    }

    public void paintBorder(SynthContext context, Graphics g, int x,
                            int y, int w, int h) {
        context.getPainter().paintDesktopIconBorder(context, g, x, y, w, h);
    }

    public void actionPerformed(ActionEvent evt) {
        if (evt.getSource() instanceof JToggleButton) {
            // Either iconify the frame or deiconify and activate it.
            JToggleButton button = (JToggleButton)evt.getSource();
            try {
                boolean selected = button.isSelected();
                if (!selected && !frame.isIconifiable()) {
                    button.setSelected(true);
                } else {
                    frame.setIcon(!selected);
                    if (selected) {
                        frame.setSelected(true);
                    }
                }
            } catch (PropertyVetoException e2) {
            }
        }
    }

    public void propertyChange(PropertyChangeEvent evt) {
        if (evt.getSource() instanceof JInternalFrame.JDesktopIcon) {
            if (SynthLookAndFeel.shouldUpdateStyle(evt)) {
                updateStyle((JInternalFrame.JDesktopIcon)evt.getSource());
            }
        } else if (evt.getSource() instanceof JInternalFrame) {
            JInternalFrame frame = (JInternalFrame)evt.getSource();
            if (iconPane instanceof JToggleButton) {
                JToggleButton button = (JToggleButton)iconPane;
                String prop = evt.getPropertyName();
                if (prop == "title") {
                    button.setText((String)evt.getNewValue());
                } else if (prop == "frameIcon") {
                    button.setIcon((Icon)evt.getNewValue());
                } else if (prop == JInternalFrame.IS_ICON_PROPERTY ||
                           prop == JInternalFrame.IS_SELECTED_PROPERTY) {
                    button.setSelected(!frame.isIcon() && frame.isSelected());
                }
            }
        }
    }
}