/*

 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package sun.swing;

import java.awt.*;

import java.awt.event.*;

import java.beans.PropertyChangeEvent;

import java.beans.PropertyChangeListener;

import java.io.*;

import java.security.AccessController;

import java.security.PrivilegedAction;

import javax.swing.*;

import javax.swing.border.*;

import javax.swing.filechooser.*;

import sun.awt.shell.*;

import sun.awt.OSInfo;

/**

 * <b>WARNING:</b> This class is an implementation detail and is only

 * public so that it can be used by two packages. You should NOT consider

 * this public API.

 * <p>

 *

 * @author Leif Samuelsson

 */

public class WindowsPlacesBar extends JToolBar

                              implements ActionListener, PropertyChangeListener {

    JFileChooser fc;

    JToggleButton[] buttons;

    ButtonGroup buttonGroup;

    File[] files;

    final Dimension buttonSize;

    public WindowsPlacesBar(JFileChooser fc, boolean isXPStyle) {

        super(JToolBar.VERTICAL);

        this.fc = fc;

        setFloatable(false);

        putClientProperty("JToolBar.isRollover", Boolean.TRUE);

        boolean isXPPlatform = (OSInfo.getOSType() == OSInfo.OSType.WINDOWS &&

                OSInfo.getWindowsVersion().compareTo(OSInfo.WINDOWS_XP) >= 0);

        if (isXPStyle) {

            buttonSize = new Dimension(83, 69);

            putClientProperty("XPStyle.subAppName", "placesbar");

            setBorder(new EmptyBorder(1, 1, 1, 1));

        } else {

            // The button size almost matches the XP style when in Classic style on XP

            buttonSize = new Dimension(83, isXPPlatform ? 65 : 54);

            setBorder(new BevelBorder(BevelBorder.LOWERED,

                                      UIManager.getColor("ToolBar.highlight"),

                                      UIManager.getColor("ToolBar.background"),

                                      UIManager.getColor("ToolBar.darkShadow"),

                                      UIManager.getColor("ToolBar.shadow")));

        }

        Color bgColor = new Color(UIManager.getColor("ToolBar.shadow").getRGB());

        setBackground(bgColor);

        FileSystemView fsv = fc.getFileSystemView();

        files = (File[]) ShellFolder.get("fileChooserShortcutPanelFolders");

        buttons = new JToggleButton[files.length];

        buttonGroup = new ButtonGroup();

        for (int i = 0; i < files.length; i++) {

            if (fsv.isFileSystemRoot(files[i])) {

                // Create special File wrapper for drive path

                files[i] = fsv.createFileObject(files[i].getAbsolutePath());

            }

            String folderName = fsv.getSystemDisplayName(files[i]);

            int index = folderName.lastIndexOf(File.separatorChar);

            if (index >= 0 && index < folderName.length() - 1) {

                folderName = folderName.substring(index + 1);

            }

            Icon icon;

            if (files[i] instanceof ShellFolder) {

                // We want a large icon, fsv only gives us a small.

                ShellFolder sf = (ShellFolder)files[i];

                Image image = sf.getIcon(true);

                if (image == null) {

                    // Get default image

                    image = (Image) ShellFolder.get("shell32LargeIcon 1");

                }

                icon = image == null ? null : new ImageIcon(image, sf.getFolderType());

            } else {

                icon = fsv.getSystemIcon(files[i]);

            }

            buttons[i] = new JToggleButton(folderName, icon);

            if (isXPStyle) {

                buttons[i].putClientProperty("XPStyle.subAppName", "placesbar");

            } else {

                Color fgColor = new Color(UIManager.getColor("List.selectionForeground").getRGB());

                buttons[i].setContentAreaFilled(false);

                buttons[i].setForeground(fgColor);

            }

            buttons[i].setMargin(new Insets(3, 2, 1, 2));

            buttons[i].setFocusPainted(false);

            buttons[i].setIconTextGap(0);

            buttons[i].setHorizontalTextPosition(JToggleButton.CENTER);

            buttons[i].setVerticalTextPosition(JToggleButton.BOTTOM);

            buttons[i].setAlignmentX(JComponent.CENTER_ALIGNMENT);

            buttons[i].setPreferredSize(buttonSize);

            buttons[i].setMaximumSize(buttonSize);

            buttons[i].addActionListener(this);

            add(buttons[i]);

            if (i < files.length-1 && isXPStyle) {

                add(Box.createRigidArea(new Dimension(1, 1)));

            }

            buttonGroup.add(buttons[i]);

        }

        doDirectoryChanged(fc.getCurrentDirectory());

    }

    protected void doDirectoryChanged(File f) {

        for (int i=0; i<buttons.length; i++) {

            JToggleButton b = buttons[i];

            if (files[i].equals(f)) {

                b.setSelected(true);

                break;

            } else if (b.isSelected()) {

                // Remove temporarily from group because it doesn't

                // allow for no button to be selected.

                buttonGroup.remove(b);

                b.setSelected(false);

                buttonGroup.add(b);

            }

        }

    }

    public void propertyChange(PropertyChangeEvent e) {

        String prop = e.getPropertyName();

        if (prop == JFileChooser.DIRECTORY_CHANGED_PROPERTY) {

            doDirectoryChanged(fc.getCurrentDirectory());

        }

    }

    public void actionPerformed(ActionEvent e) {

        JToggleButton b = (JToggleButton)e.getSource();

        for (int i=0; i<buttons.length; i++) {

            if (b == buttons[i]) {

                fc.setCurrentDirectory(files[i]);

                break;

            }

        }

    }

    public Dimension getPreferredSize() {

        Dimension min  = super.getMinimumSize();

        Dimension pref = super.getPreferredSize();

        int h = min.height;

        if (buttons != null && buttons.length > 0 && buttons.length < 5) {

            JToggleButton b = buttons[0];

            if (b != null) {

                int bh = 5 * (b.getPreferredSize().height + 1);

                if (bh > h) {

                    h = bh;

                }

            }

        }

        if (h > pref.height) {

            pref = new Dimension(pref.width, h);

        }

        return pref;

    }

}