/*

 * Copyright (c) 1998, 2014, 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 javax.swing.plaf.metal;

import javax.swing.*;

import javax.swing.plaf.UIResource;

import java.awt.*;

import java.awt.image.BufferedImage;

import java.io.Serializable;

import java.util.Enumeration;

import java.util.Vector;

import sun.swing.CachedPainter;

/**

 * Factory object that vends <code>Icon</code>s for

 * the Java™ look and feel (Metal).

 * These icons are used extensively in Metal via the defaults mechanism.

 * While other look and feels often use GIFs for icons, creating icons

 * in code facilitates switching to other themes.

 *

 * <p>

 * Each method in this class returns

 * either an <code>Icon</code> or <code>null</code>,

 * where <code>null</code> implies that there is no default icon.

 *

 * <p>

 * <strong>Warning:</strong>

 * Serialized objects of this class will not be compatible with

 * future Swing releases. The current serialization support is

 * appropriate for short term storage or RMI between applications running

 * the same version of Swing.  As of 1.4, support for long term storage

 * of all JavaBeans™

 * has been added to the <code>java.beans</code> package.

 * Please see {@link java.beans.XMLEncoder}.

 *

 * @author Michael C. Albers

 */

@SuppressWarnings("serial") // Same-version serialization only

public class MetalIconFactory implements Serializable {

    // List of code-drawn Icons

    private static Icon fileChooserDetailViewIcon;

    private static Icon fileChooserHomeFolderIcon;

    private static Icon fileChooserListViewIcon;

    private static Icon fileChooserNewFolderIcon;

    private static Icon fileChooserUpFolderIcon;

    private static Icon internalFrameAltMaximizeIcon;

    private static Icon internalFrameCloseIcon;

    private static Icon internalFrameDefaultMenuIcon;

    private static Icon internalFrameMaximizeIcon;

    private static Icon internalFrameMinimizeIcon;

    private static Icon radioButtonIcon;

    private static Icon treeComputerIcon;

    private static Icon treeFloppyDriveIcon;

    private static Icon treeHardDriveIcon;

    private static Icon menuArrowIcon;

    private static Icon menuItemArrowIcon;

    private static Icon checkBoxMenuItemIcon;

    private static Icon radioButtonMenuItemIcon;

    private static Icon checkBoxIcon;

    // Ocean icons

    private static Icon oceanHorizontalSliderThumb;

    private static Icon oceanVerticalSliderThumb;

    // Constants

    public static final boolean DARK = false;

    public static final boolean LIGHT = true;

    // Accessor functions for Icons. Does the caching work.

    public static Icon getFileChooserDetailViewIcon() {

        if (fileChooserDetailViewIcon == null) {

            fileChooserDetailViewIcon = new FileChooserDetailViewIcon();

        }

        return fileChooserDetailViewIcon;

    }

    public static Icon getFileChooserHomeFolderIcon() {

        if (fileChooserHomeFolderIcon == null) {

            fileChooserHomeFolderIcon = new FileChooserHomeFolderIcon();

        }

        return fileChooserHomeFolderIcon;

    }

    public static Icon getFileChooserListViewIcon() {

        if (fileChooserListViewIcon == null) {

            fileChooserListViewIcon = new FileChooserListViewIcon();

        }

        return fileChooserListViewIcon;

    }

    public static Icon getFileChooserNewFolderIcon() {

        if (fileChooserNewFolderIcon == null) {

            fileChooserNewFolderIcon = new FileChooserNewFolderIcon();

        }

        return fileChooserNewFolderIcon;

    }

    public static Icon getFileChooserUpFolderIcon() {

        if (fileChooserUpFolderIcon == null) {

            fileChooserUpFolderIcon = new FileChooserUpFolderIcon();

        }

        return fileChooserUpFolderIcon;

    }

    public static Icon getInternalFrameAltMaximizeIcon(int size) {

        return new InternalFrameAltMaximizeIcon(size);

    }

    public static Icon getInternalFrameCloseIcon(int size) {

        return new InternalFrameCloseIcon(size);

    }

    public static Icon getInternalFrameDefaultMenuIcon() {

        if (internalFrameDefaultMenuIcon == null) {

            internalFrameDefaultMenuIcon = new InternalFrameDefaultMenuIcon();

        }

        return internalFrameDefaultMenuIcon;

    }

    public static Icon getInternalFrameMaximizeIcon(int size) {

        return new InternalFrameMaximizeIcon(size);

    }

    public static Icon getInternalFrameMinimizeIcon(int size) {

        return new InternalFrameMinimizeIcon(size);

    }

    public static Icon getRadioButtonIcon() {

        if (radioButtonIcon == null) {

            radioButtonIcon = new RadioButtonIcon();

        }

        return radioButtonIcon;

    }

    /**

     * Returns a checkbox icon.

     * @since 1.3

     */

    public static Icon getCheckBoxIcon() {

        if (checkBoxIcon == null) {

            checkBoxIcon = new CheckBoxIcon();

        }

        return checkBoxIcon;

    }

    public static Icon getTreeComputerIcon() {

        if ( treeComputerIcon == null ) {

            treeComputerIcon = new TreeComputerIcon();

        }

        return treeComputerIcon;

    }

    public static Icon getTreeFloppyDriveIcon() {

        if ( treeFloppyDriveIcon == null ) {

            treeFloppyDriveIcon = new TreeFloppyDriveIcon();

        }

        return treeFloppyDriveIcon;

    }

    public static Icon getTreeFolderIcon() {

        return new TreeFolderIcon();

    }

    public static Icon getTreeHardDriveIcon() {

        if ( treeHardDriveIcon == null ) {

            treeHardDriveIcon = new TreeHardDriveIcon();

        }

        return treeHardDriveIcon;

    }

    public static Icon getTreeLeafIcon() {

        return new TreeLeafIcon();

    }

    public static Icon getTreeControlIcon( boolean isCollapsed ) {

            return new TreeControlIcon( isCollapsed );

    }

    public static Icon getMenuArrowIcon() {

        if (menuArrowIcon == null) {

            menuArrowIcon = new MenuArrowIcon();

        }

        return menuArrowIcon;

    }

    /**

     * Returns an icon to be used by <code>JCheckBoxMenuItem</code>.

     *

     * @return the default icon for check box menu items,

     *         or <code>null</code> if no default exists

     */

    public static Icon getMenuItemCheckIcon() {

        return null;

    }

    public static Icon getMenuItemArrowIcon() {

        if (menuItemArrowIcon == null) {

            menuItemArrowIcon = new MenuItemArrowIcon();

        }

        return menuItemArrowIcon;

    }

    public static Icon getCheckBoxMenuItemIcon() {

        if (checkBoxMenuItemIcon == null) {

            checkBoxMenuItemIcon = new CheckBoxMenuItemIcon();

        }

        return checkBoxMenuItemIcon;

    }

    public static Icon getRadioButtonMenuItemIcon() {

        if (radioButtonMenuItemIcon == null) {

            radioButtonMenuItemIcon = new RadioButtonMenuItemIcon();

        }

        return radioButtonMenuItemIcon;

    }

    public static Icon getHorizontalSliderThumbIcon() {

        if (MetalLookAndFeel.usingOcean()) {

            if (oceanHorizontalSliderThumb == null) {

                oceanHorizontalSliderThumb =

                               new OceanHorizontalSliderThumbIcon();

            }

            return oceanHorizontalSliderThumb;

        }

      // don't cache these, bumps don't get updated otherwise

        return new HorizontalSliderThumbIcon();

    }

    public static Icon getVerticalSliderThumbIcon() {

        if (MetalLookAndFeel.usingOcean()) {

            if (oceanVerticalSliderThumb == null) {

                oceanVerticalSliderThumb = new OceanVerticalSliderThumbIcon();

            }

            return oceanVerticalSliderThumb;

        }

        // don't cache these, bumps don't get updated otherwise

        return new VerticalSliderThumbIcon();

    }

    // File Chooser Detail View code

    private static class FileChooserDetailViewIcon implements Icon, UIResource, Serializable {

        public void paintIcon(Component c, Graphics g, int x, int y) {

            g.translate(x, y);

            // Draw outside edge of each of the documents

            g.setColor(MetalLookAndFeel.getPrimaryControlInfo());

            //     top

            g.drawLine(2,2, 5,2); // top

            g.drawLine(2,3, 2,7); // left

            g.drawLine(3,7, 6,7); // bottom

            g.drawLine(6,6, 6,3); // right

            //     bottom

            g.drawLine(2,10, 5,10); // top

            g.drawLine(2,11, 2,15); // left

            g.drawLine(3,15, 6,15); // bottom

            g.drawLine(6,14, 6,11); // right

            // Draw little dots next to documents

            //     Same color as outside edge

            g.drawLine(8,5, 15,5);     // top

            g.drawLine(8,13, 15,13);   // bottom

            // Draw inner highlight on documents

            g.setColor(MetalLookAndFeel.getPrimaryControl());

            g.drawRect(3,3, 2,3);   // top

            g.drawRect(3,11, 2,3);  // bottom

            // Draw inner inner highlight on documents

            g.setColor(MetalLookAndFeel.getPrimaryControlHighlight());

            g.drawLine(4,4, 4,5);     // top

            g.drawLine(4,12, 4,13);   // bottom

            g.translate(-x, -y);

        }

        public int getIconWidth() {

            return 18;

        }

        public int getIconHeight() {

            return 18;

        }

    }  // End class FileChooserDetailViewIcon

    // File Chooser Home Folder code

    private static class FileChooserHomeFolderIcon implements Icon, UIResource, Serializable {

        public void paintIcon(Component c, Graphics g, int x, int y) {

            g.translate(x, y);

            // Draw outside edge of house

            g.setColor(MetalLookAndFeel.getPrimaryControlInfo());

            g.drawLine(8,1, 1,8);  // left edge of roof

            g.drawLine(8,1, 15,8); // right edge of roof

            g.drawLine(11,2, 11,3); // left edge of chimney

            g.drawLine(12,2, 12,4); // right edge of chimney

            g.drawLine(3,7, 3,15); // left edge of house

            g.drawLine(13,7, 13,15); // right edge of house

            g.drawLine(4,15, 12,15); // bottom edge of house

            // Draw door frame

            //     same color as edge of house

            g.drawLine( 6,9,  6,14); // left

            g.drawLine(10,9, 10,14); // right

            g.drawLine( 7,9,  9, 9); // top

            // Draw roof body

            g.setColor(MetalLookAndFeel.getControlDarkShadow());

            g.fillRect(8,2, 1,1); //top toward bottom

            g.fillRect(7,3, 3,1);

            g.fillRect(6,4, 5,1);

            g.fillRect(5,5, 7,1);

            g.fillRect(4,6, 9,2);

            // Draw doornob

            //     same color as roof body

            g.drawLine(9,12, 9,12);

            // Paint the house

            g.setColor(MetalLookAndFeel.getPrimaryControl());

            g.drawLine(4,8, 12,8); // above door

            g.fillRect(4,9, 2,6); // left of door

            g.fillRect(11,9, 2,6); // right of door

            g.translate(-x, -y);

        }

        public int getIconWidth() {

            return 18;

        }

        public int getIconHeight() {

            return 18;

        }

    }  // End class FileChooserHomeFolderIcon

    // File Chooser List View code

    private static class FileChooserListViewIcon implements Icon, UIResource, Serializable {

        public void paintIcon(Component c, Graphics g, int x, int y) {

            g.translate(x, y);

            // Draw outside edge of each of the documents

            g.setColor(MetalLookAndFeel.getPrimaryControlInfo());

            //     top left

            g.drawLine(2,2, 5,2); // top

            g.drawLine(2,3, 2,7); // left

            g.drawLine(3,7, 6,7); // bottom

            g.drawLine(6,6, 6,3); // right

            //     top right

            g.drawLine(10,2, 13,2); // top

            g.drawLine(10,3, 10,7); // left

            g.drawLine(11,7, 14,7); // bottom

            g.drawLine(14,6, 14,3); // right

            //     bottom left

            g.drawLine(2,10, 5,10); // top

            g.drawLine(2,11, 2,15); // left

            g.drawLine(3,15, 6,15); // bottom

            g.drawLine(6,14, 6,11); // right

            //     bottom right

            g.drawLine(10,10, 13,10); // top

            g.drawLine(10,11, 10,15); // left

            g.drawLine(11,15, 14,15); // bottom