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/* MetalIconFactory.java --

   Copyright (C) 2005 Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2, or (at your option)

any later version.

GNU Classpath 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 for more details.

You should have received a copy of the GNU General Public License

along with GNU Classpath; see the file COPYING.  If not, write to the

Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301 USA.

Linking this library statically or dynamically with other modules is

making a combined work based on this library.  Thus, the terms and

conditions of the GNU General Public License cover the whole

combination.

As a special exception, the copyright holders of this library give you

permission to link this library with independent modules to produce an

executable, regardless of the license terms of these independent

modules, and to copy and distribute the resulting executable under

terms of your choice, provided that you also meet, for each linked

independent module, the terms and conditions of the license of that

module.  An independent module is a module which is not derived from

or based on this library.  If you modify this library, you may extend

this exception to your version of the library, but you are not

obligated to do so.  If you do not wish to do so, delete this

exception statement from your version. */

package javax.swing.plaf.metal;

import java.awt.Color;

import java.awt.Component;

import java.awt.Graphics;

import java.io.Serializable;

import javax.swing.AbstractButton;

import javax.swing.Icon;

import javax.swing.JCheckBox;

import javax.swing.JCheckBoxMenuItem;

import javax.swing.JFileChooser;

import javax.swing.JInternalFrame;

import javax.swing.JRadioButton;

import javax.swing.JRadioButtonMenuItem;

import javax.swing.JSlider;

import javax.swing.SwingConstants;

import javax.swing.UIManager;

import javax.swing.plaf.UIResource;

/**

 * Creates icons for the {@link MetalLookAndFeel}.

 */

public class MetalIconFactory implements Serializable

{

  /** A constant representing "dark". */

  public static final boolean DARK = false;

  /** A constant representing "light". */

  public static final boolean LIGHT = true;

  /**

   * An icon displayed for {@link JCheckBoxMenuItem} components.

   */

  private static class CheckBoxMenuItemIcon implements Icon, Serializable

  {

    /**

     * Creates a new icon instance.

     */

    public CheckBoxMenuItemIcon()

    {

      // Nothing to do here.

    }

    /**

     * Returns the width of the icon, in pixels.

     *

     * @return The width of the icon (10 pixels).

     */

    public int getIconWidth()

    {

      return 10;

    }

    /**

     * Returns the height of the icon, in pixels.

     *

     * @return The height of the icon (10 pixels).

     */

    public int getIconHeight()

    {

      return 10;

    }

    /**

     * Paints the icon.

     *

     * @param c  the component.

     * @param g  the graphics device.

     * @param x  the x-coordinate.

     * @param y  the y-coordinate.

     */

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

    {

      JCheckBoxMenuItem item = (JCheckBoxMenuItem) c;

      if (item.isArmed())

        g.setColor(MetalLookAndFeel.getBlack());

      else

        g.setColor(MetalLookAndFeel.getControlDarkShadow());

      g.drawLine(x, y, x + 8, y);

      g.drawLine(x, y + 1, x, y + 8);

      g.drawLine(x + 2, y + 8, x + 8, y + 8);

      g.drawLine(x + 8, y + 2, x + 8, y + 7);

      g.setColor(MetalLookAndFeel.getWhite());

      g.drawLine(x + 1, y + 1, x + 7, y + 1);

      g.drawLine(x + 1, y + 2, x + 1, y + 7);

      g.drawLine(x + 1, y + 9, x + 9, y + 9);

      g.drawLine(x + 9, y + 1, x + 9, y + 8);

      // if the item is selected, we should draw a tick

      if (item.isSelected())

      {

        g.setColor(MetalLookAndFeel.getBlack());

        g.fillRect(x + 2, y + 2, 2, 5);

        for (int i = 0; i < 6; i++)

          g.drawLine(x + 8 - i, y + i, x + 9 - i, y + i);

      }

    }

  }

  /**

   * An icon used for the "detail view" button on a {@link JFileChooser} under

   * the {@link MetalLookAndFeel}.

   *

   * @see MetalIconFactory#getFileChooserDetailViewIcon()

   */

  private static class FileChooserDetailViewIcon implements Icon, Serializable

  {

    /**

     * Creates a new icon.

     */

    public FileChooserDetailViewIcon()

    {

      // Nothing to do here.

    }

    /**

     * Returns the width of the icon, in pixels.

     *

     * @return The width of the icon.

     */

    public int getIconWidth()

    {

      return 18;

    }

    /**

     * Returns the height of the icon, in pixels.

     *

     * @return The height of the icon.

     */

    public int getIconHeight()

    {

      return 18;

    }

    /**

     * Paints the icon using colors from the {@link MetalLookAndFeel}.

     *

     * @param c  the component (ignored).

     * @param g  the graphics device.

     * @param x  the x-coordinate for the top-left of the icon.

     * @param y  the y-coordinate for the top-left of the icon.

     */

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

    {

      Color savedColor = g.getColor();

      g.setColor(MetalLookAndFeel.getBlack());

      // file 1 outline

      g.drawLine(x + 2, y + 2, x + 5, y + 2);

      g.drawLine(x + 6, y + 3, x + 6, y + 7);

      g.drawLine(x + 2, y + 7, x + 6, y + 7);

      g.drawLine(x + 2, y + 2, x + 2, y + 7);

      // file 2 outline

      g.drawLine(x + 2, y + 10, x + 5, y + 10);

      g.drawLine(x + 6, y + 11, x + 6, y + 15);

      g.drawLine(x + 2, y + 15, x + 6, y + 15);

      g.drawLine(x + 2, y + 10, x + 2, y + 15);

      // detail lines

      g.drawLine(x + 8, y + 5, x + 15, y + 5);

      g.drawLine(x + 8, y + 13, x + 15, y + 13);

      // fill files

      g.setColor(MetalLookAndFeel.getPrimaryControl());

      g.fillRect(x + 3, y + 3, 3, 4);

      g.fillRect(x + 3, y + 11, 3, 4);

      // highlight files

      g.setColor(MetalLookAndFeel.getPrimaryControlHighlight());

      g.drawLine(x + 4, y + 4, x + 4, y + 5);

      g.drawLine(x + 4, y + 12, x + 4, y + 13);

      g.setColor(savedColor);

    }

  }

  /**

   * An icon used for the "home folder" button on a {@link JFileChooser} under

   * the {@link MetalLookAndFeel}.

   *

   * @see MetalIconFactory#getFileChooserHomeFolderIcon()

   */

  private static class FileChooserHomeFolderIcon implements Icon, Serializable

  {

    /**

     * Creates a new icon.

     */

    public FileChooserHomeFolderIcon()

    {

      // Nothing to do here.

    }

    /**

     * Returns the width of the icon, in pixels.

     *

     * @return The width of the icon.

     */

    public int getIconWidth()

    {

      return 18;

    }

    /**

     * Returns the height of the icon, in pixels.

     *

     * @return The height of the icon.

     */

    public int getIconHeight()

    {

      return 18;

    }

    /**

     * Paints the icon using colors from the {@link MetalLookAndFeel}.

     *

     * @param c  the component (ignored).

     * @param g  the graphics device.

     * @param x  the x-coordinate for the top-left of the icon.

     * @param y  the y-coordinate for the top-left of the icon.

     */

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

    {

      Color savedColor = g.getColor();

      g.setColor(MetalLookAndFeel.getBlack());

      // roof

      g.drawLine(x + 1, y + 8, x + 8, y + 1);

      g.drawLine(x + 8, y + 1, x + 15, y + 8);

      // base of house

      g.drawLine(x + 3, y + 6, x + 3, y + 15);

      g.drawLine(x + 3, y + 15, x + 13, y + 15);

      g.drawLine(x + 13, y + 6, x + 13, y + 15);

      // door frame

      g.drawLine(x + 6, y + 9, x + 6, y + 15);

      g.drawLine(x + 6, y + 9, x + 10, y + 9);

      g.drawLine(x + 10, y + 9, x + 10, y + 15);

      // chimney

      g.drawLine(x + 11, y + 2, x + 11, y + 4);

      g.drawLine(x + 12, y + 2, x + 12, y + 5);

      g.setColor(MetalLookAndFeel.getControlDarkShadow());

      // roof paint

      int xx = x + 8;

      for (int i = 0; i < 4; i++)

        g.drawLine(xx - i, y + 2 + i, xx + i, y + 2 + i);

      g.fillRect(x + 4, y + 6, 9, 2);

      // door knob

      g.drawLine(x + 9, y + 12, x + 9, y + 12);

      // house paint

      g.setColor(MetalLookAndFeel.getPrimaryControl());

      g.drawLine(x + 4, y + 8, x + 12, y + 8);

      g.fillRect(x + 4, y + 9, 2, 6);

      g.fillRect(x + 11, y + 9, 2, 6);

      g.setColor(savedColor);

    }

  }

  /**

   * An icon used for the "list view" button on a {@link JFileChooser} under

   * the {@link MetalLookAndFeel}.

   *

   * @see MetalIconFactory#getFileChooserListViewIcon()

   */

  private static class FileChooserListViewIcon implements Icon, Serializable

  {

    /**

     * Creates a new icon.

     */

    public FileChooserListViewIcon()

    {

      // Nothing to do here.

    }

    /**

     * Returns the width of the icon, in pixels.

     *

     * @return The width of the icon.

     */

    public int getIconWidth()

    {

      return 18;

    }

    /**

     * Returns the height of the icon, in pixels.

     *

     * @return The height of the icon.

     */

    public int getIconHeight()

    {

      return 18;

    }

    /**

     * Paints the icon using colors from the {@link MetalLookAndFeel}.

     *

     * @param c  the component (ignored).

     * @param g  the graphics device.

     * @param x  the x-coordinate for the top-left of the icon.

     * @param y  the y-coordinate for the top-left of the icon.

     */

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

    {

      Color savedColor = g.getColor();

      g.setColor(MetalLookAndFeel.getBlack());

      // file 1 outline

      g.drawLine(x + 2, y + 2, x + 5, y + 2);

      g.drawLine(x + 6, y + 3, x + 6, y + 7);

      g.drawLine(x + 2, y + 7, x + 6, y + 7);

      g.drawLine(x + 2, y + 2, x + 2, y + 7);

      // file 2 outline

      g.drawLine(x + 2, y + 10, x + 5, y + 10);

      g.drawLine(x + 6, y + 11, x + 6, y + 15);

      g.drawLine(x + 2, y + 15, x + 6, y + 15);

      g.drawLine(x + 2, y + 10, x + 2, y + 15);

      // file 3 outline

      g.drawLine(x + 10, y + 2, x + 13, y + 2);

      g.drawLine(x + 14, y + 3, x + 14, y + 7);

      g.drawLine(x + 10, y + 7, x + 14, y + 7);

      g.drawLine(x + 10, y + 2, x + 10, y + 7);

      // file 4 outline

      g.drawLine(x + 10, y + 10, x + 13, y + 10);

      g.drawLine(x + 14, y + 11, x + 14, y + 15);

      g.drawLine(x + 10, y + 15, x + 14, y + 15);

      g.drawLine(x + 10, y + 10, x + 10, y + 15);

      g.drawLine(x + 8, y + 5, x + 8, y + 5);

      g.drawLine(x + 8, y + 13, x + 8, y + 13);

      g.drawLine(x + 16, y + 5, x + 16, y + 5);

      g.drawLine(x + 16, y + 13, x + 16, y + 13);

      // fill files

      g.setColor(MetalLookAndFeel.getPrimaryControl());

      g.fillRect(x + 3, y + 3, 3, 4);

      g.fillRect(x + 3, y + 11, 3, 4);

      g.fillRect(x + 11, y + 3, 3, 4);

      g.fillRect(x + 11, y + 11, 3, 4);

      // highlight files

      g.setColor(MetalLookAndFeel.getPrimaryControlHighlight());

      g.drawLine(x + 4, y + 4, x + 4, y + 5);

      g.drawLine(x + 4, y + 12, x + 4, y + 13);

      g.drawLine(x + 12, y + 4, x + 12, y + 5);

      g.drawLine(x + 12, y + 12, x + 12, y + 13);

      g.setColor(savedColor);

    }

  }

  /**

   * An icon used for the "new folder" button on a {@link JFileChooser} under

   * the {@link MetalLookAndFeel}.

   *

   * @see MetalIconFactory#getFileChooserNewFolderIcon()

   */

  private static class FileChooserNewFolderIcon  implements Icon, Serializable

  {

    /**

     * Creates a new icon.

     */

    public FileChooserNewFolderIcon()

    {

      // Nothing to do here.

    }

    /**

     * Returns the width of the icon, in pixels.

     *

     * @return The width of the icon.

     */

    public int getIconWidth()

    {

      return 18;

    }

    /**

     * Returns the height of the icon, in pixels.

     *

     * @return The height of the icon.

     */

    public int getIconHeight()

    {

      return 18;

    }

    /**

     * Paints the icon using colors from the {@link MetalLookAndFeel}.

     *

     * @param c  the component (ignored).

     * @param g  the graphics device.

     * @param x  the x-coordinate for the top-left of the icon.

     * @param y  the y-coordinate for the top-left of the icon.

     */

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

    {

      Color savedColor = g.getColor();

      g.setColor(MetalLookAndFeel.getBlack());

      g.drawLine(x + 2, y + 5, x + 9, y + 5);

      g.drawLine(x + 10, y + 6, x + 15, y + 6);

      g.drawLine(x + 15, y + 5, x + 15, y + 14);

      g.drawLine(x + 2, y + 14, x + 15, y + 14);

      g.drawLine(x + 1, y + 6, x + 1, y + 14);

      g.setColor(MetalLookAndFeel.getPrimaryControlDarkShadow());

      g.drawLine(x + 11, y + 3, x + 15, y + 3);

      g.drawLine(x + 10, y + 4, x + 15, y + 4);

      g.setColor(MetalLookAndFeel.getPrimaryControl());

      g.fillRect(x + 3, y + 7, 7, 7);

      g.fillRect(x + 10, y + 8, 5, 6);

      g.drawLine(x + 10, y + 5, x + 14, y + 5);

      g.setColor(MetalLookAndFeel.getPrimaryControlHighlight());

      g.drawLine(x + 10, y + 7, x + 14, y + 7);

      g.drawLine(x + 2, y + 6, x + 9, y + 6);

      g.drawLine(x + 2, y + 6, x + 2, y + 13);

      g.setColor(savedColor);

    }

  }

  /**

   * An icon used for the "up folder" button on a {@link JFileChooser} under

   * the {@link MetalLookAndFeel}.

   *

   * @see MetalIconFactory#getFileChooserNewFolderIcon()

   */

  private static class FileChooserUpFolderIcon extends FileChooserNewFolderIcon

    implements Icon, Serializable

  {

    /**

     * Creates a new icon.

     */

    public FileChooserUpFolderIcon()

    {

      // Nothing to do here.

    }

    /**

     * Paints the icon using colors from the {@link MetalLookAndFeel}.

     *

     * @param c  the component (ignored).

     * @param g  the graphics device.

     * @param x  the x-coordinate for the top-left of the icon.

     * @param y  the y-coordinate for the top-left of the icon.

     */

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

    {

      Color savedColor = g.getColor();

      // draw the folder

      super.paintIcon(c, g, x, y);

      // now draw the up arrow

      g.setColor(MetalLookAndFeel.getBlack());

      g.drawLine(x + 8, y + 9, x + 8, y + 16);

      int xx = x + 8;

      for (int i = 0; i < 4; i++)

        g.drawLine(xx - i, y + 9 + i, xx + i, y + 9 + i);

      g.setColor(savedColor);

    }

  }

  /**

   * An icon representing a file (drawn as a piece of paper with the top-right

   * corner turned down).

   */

  public static class FileIcon16 implements Icon, Serializable

  {

    /**

     * Returns the width of the icon, in pixels.

     *

     * @return The width of the icon.

     */

    public int getIconWidth()

    {

      return 16;

    }

    /**

     * Returns the height of the icon, in pixels.  The height returned is

     * <code>16</code> plus the value returned by

     * {@link #getAdditionalHeight()}.

     *

     * @return The height of the icon.

     */

    public int getIconHeight()

    {

      return 16 + getAdditionalHeight();

    }

    /**

     * Paints the icon at the location (x, y).

     *

     * @param c  the component.

     * @param g  the graphics context.

     * @param x  the x coordinate.

     * @param y  the y coordinate.

     */

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

    {

      // TODO: pick up appropriate UI colors

      g.setColor(Color.black);

      g.drawLine(x, y, x + 9, y);

      g.drawLine(x, y + 1, x, y + 15);

      g.drawLine(x, y + 15, x + 12, y + 15);

      g.drawLine(x + 12, y + 15, x + 12, y + 6);

      g.drawLine(x + 12, y + 6, x + 9, y);

      g.drawLine(x + 7, y + 2, x + 11, y + 6);

      g.drawLine(x + 8, y + 1, x + 9, y + 1);

      g.setColor(new Color(204, 204, 255));

      g.drawLine(x + 1, y + 1, x + 7, y + 1);

      g.drawLine(x + 1, y + 1, x + 1, y + 14);

      g.drawLine(x + 1, y + 14, x + 11, y + 14);

      g.drawLine(x + 11, y + 14, x + 11, y + 7);

      g.drawLine(x + 8, y + 2, x + 10, y + 4);

    }

    /**

     * Returns the additional height for the icon.  The

     * {@link #getIconHeight()} method adds this value to the icon height it

     * returns.  Subclasses can override this method to adjust the icon height.

     *

     * @return The additional height (<code>0</code> unless overridden).

     */

    public int getAdditionalHeight()

    {

      return 0;

    }

    /**

     * Returns the shift (???).

     *

     * @return The shift.

     */

    public int getShift()

    {

      return 0;

    }

  }

  /**

   * An icon representing a folder.

   */

  public static class FolderIcon16 implements Icon, Serializable

  {

    /**

     * Returns the width of the icon, in pixels.

     *

     * @return The width of the icon.

     */

    public int getIconWidth() {

      return 16;

    }

    /**

     * Returns the height of the icon, in pixels.  The height returned is

     * <code>16</code> plus the value returned by

     * {@link #getAdditionalHeight()}.

     *

     * @return The height of the icon.

     */

    public int getIconHeight()

    {

      return 16 + getAdditionalHeight();

    }

    /**

     * Paints the icon at the location (x, y).

     *

     * @param c  the component.

     * @param g  the graphics device.

     * @param x  the x coordinate.

     * @param y  the y coordinate.

     */

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

    {

      // TODO: pick up appropriate UI colors

      g.setColor(Color.black);

      g.drawLine(x, y + 3, x, y + 12);

      g.drawLine(x, y + 12, x + 15, y + 12);

      g.drawLine(x + 15, y + 12, x + 15, y + 2);

      g.drawLine(x + 14, y + 3, x + 9, y + 3);

      g.drawLine(x + 8, y + 2, x + 1, y + 2);

      g.setColor(new Color(204, 204, 255));

      g.fillRect(x + 2, y + 4, 7, 8);

      g.fillRect(x + 9, y + 5, 6, 7);

      g.setColor(new Color(102, 102, 153));

      g.drawLine(x + 9, y + 2, x + 14, y + 2);