basicfilechooserui.java

gcc的组建

        {
	  filechooser.getFileSystemView().createNewFolder(filechooser
	                                                  .getCurrentDirectory());
        }
      catch (IOException ioe)
        {
	  return;
        }
      filechooser.rescanCurrentDirectory();
      filechooser.repaint();
    }
  }

  /**
   * A listener for selection events in the file list.
   * 
   * @see BasicFileChooserUI#createListSelectionListener(JFileChooser)
   */
  protected class SelectionListener implements ListSelectionListener
  {
    /**
     * Creates a new <code>SelectionListener</code> object.
     */
    protected SelectionListener()
    {
      // Nothing to do here.
    }

    /**
     * DOCUMENT ME!
     *
     * @param e DOCUMENT ME!
     */
    public void valueChanged(ListSelectionEvent e)
    {
      Object f = filelist.getSelectedValue();
      if (f == null)
	return;
      File file = filechooser.getFileSystemView().createFileObject(f.toString());
      if (! filechooser.isTraversable(file))
	filechooser.setSelectedFile(file);
      else
	filechooser.setSelectedFile(null);
    }
  }

  /**
   * DOCUMENT ME!
   * 
   * @see BasicFileChooserUI#getUpdateAction()
   */
  protected class UpdateAction extends AbstractAction
  {
    /**
     * Creates a new UpdateAction object.
     */
    protected UpdateAction()
    {
      // Nothing to do here.
    }

    /**
     * NOT YET IMPLEMENTED.
     *
     * @param e  the action event.
     */
    public void actionPerformed(ActionEvent e)
    {
      // FIXME: implement this
    }
  }

  /** The localised mnemonic for the cancel button. */
  protected int cancelButtonMnemonic;

  /** The localised text for the cancel button. */
  protected String cancelButtonText;

  /** The localised tool tip text for the cancel button. */
  protected String cancelButtonToolTipText;

  /** An icon representing a computer. */
  protected Icon computerIcon = new Icon()
    {
      public int getIconHeight()
      {
	return ICON_SIZE;
      }

      public int getIconWidth()
      {
	return ICON_SIZE;
      }

      public void paintIcon(Component c, Graphics g, int x, int y)
      {
        // FIXME: is this not implemented, or is the icon intentionally blank?
      }
    };

  /** An icon for the "details view" button. */
  protected Icon detailsViewIcon = new Icon()
    {
      public int getIconHeight()
      {
	return ICON_SIZE;
      }

      public int getIconWidth()
      {
	return ICON_SIZE;
      }

      public void paintIcon(Component c, Graphics g, int x, int y)
      {
	Color saved = g.getColor();
	g.translate(x, y);

	g.setColor(Color.GRAY);
	g.drawRect(1, 1, 15, 20);
	g.drawLine(17, 6, 23, 6);
	g.drawLine(17, 12, 23, 12);
	g.drawLine(17, 18, 23, 18);

	g.setColor(saved);
	g.translate(-x, -y);
      }
    };

  /** An icon representing a directory. */
  protected Icon directoryIcon = new Icon()
    {
      public int getIconHeight()
      {
	return ICON_SIZE;
      }

      public int getIconWidth()
      {
	return ICON_SIZE;
      }

      public void paintIcon(Component c, Graphics g, int x, int y)
      {
	Color saved = g.getColor();
	g.translate(x, y);

	Point ap = new Point(3, 7);
	Point bp = new Point(3, 21);
	Point cp = new Point(21, 21);
	Point dp = new Point(21, 12);
	Point ep = new Point(16, 12);
	Point fp = new Point(13, 7);

	Polygon dir = new Polygon(new int[] { ap.x, bp.x, cp.x, dp.x, ep.x, fp.x },
	                          new int[] { ap.y, bp.y, cp.y, dp.y, ep.y, fp.y },
	                          6);

	g.setColor(new Color(153, 204, 255));
	g.fillPolygon(dir);
	g.setColor(Color.BLACK);
	g.drawPolygon(dir);

	g.translate(-x, -y);
	g.setColor(saved);
      }
    };

  /** The localised Mnemonic for the open button. */
  protected int directoryOpenButtonMnemonic;

  /** The localised text for the open button. */
  protected String directoryOpenButtonText;

  /** The localised tool tip text for the open button. */
  protected String directoryOpenButtonToolTipText;

  /** An icon representing a file. */
  protected Icon fileIcon = new Icon()
    {
      public int getIconHeight()
      {
	return ICON_SIZE;
      }

      public int getIconWidth()
      {
	return ICON_SIZE;
      }

      public void paintIcon(Component c, Graphics g, int x, int y)
      {
	Color saved = g.getColor();
	g.translate(x, y);

	Point a = new Point(5, 4);
	Point b = new Point(5, 20);
	Point d = new Point(19, 20);
	Point e = new Point(19, 7);
	Point f = new Point(16, 4);

	Polygon p = new Polygon(new int[] { a.x, b.x, d.x, e.x, f.x, },
	                        new int[] { a.y, b.y, d.y, e.y, f.y }, 5);

	g.setColor(Color.WHITE);
	g.fillPolygon(p);
	g.setColor(Color.BLACK);
	g.drawPolygon(p);

	g.drawLine(16, 4, 14, 6);
	g.drawLine(14, 6, 19, 7);

	g.setColor(saved);
	g.translate(-x, -y);
      }
    };

  /** An icon representing a floppy drive. */
  protected Icon floppyDriveIcon = new Icon()
    {
      public int getIconHeight()
      {
	return ICON_SIZE;
      }

      public int getIconWidth()
      {
	return ICON_SIZE;
      }

      public void paintIcon(Component c, Graphics g, int x, int y)
      {
        // FIXME: is this not implemented, or is the icon intentionally blank?
      }
    };

  /** An icon representing a hard drive. */
  protected Icon hardDriveIcon = new Icon()
    {
      public int getIconHeight()
      {
	return ICON_SIZE;
      }

      public int getIconWidth()
      {
	return ICON_SIZE;
      }

      public void paintIcon(Component c, Graphics g, int x, int y)
      {
        // FIXME: is this not implemented, or is the icon intentionally blank?
      }
    };

  /** The localised mnemonic for the "help" button. */
  protected int helpButtonMnemonic;

  /** The localised text for the "help" button. */
  protected String helpButtonText;

  /** The localised tool tip text for the help button. */
  protected String helpButtonToolTipText;

  /** An icon representing the user's home folder. */
  protected Icon homeFolderIcon = new Icon()
    {
      public int getIconHeight()
      {
	return ICON_SIZE;
      }

      public int getIconWidth()
      {
	return ICON_SIZE;
      }

      public void paintIcon(Component c, Graphics g, int x, int y)
      {
	Color saved = g.getColor();
	g.translate(x, y);

	Point a = new Point(12, 3);
	Point b = new Point(4, 10);
	Point d = new Point(20, 10);

	Polygon p = new Polygon(new int[] { a.x, b.x, d.x },
	                        new int[] { a.y, b.y, d.y }, 3);

	g.setColor(new Color(104, 51, 0));
	g.fillPolygon(p);
	g.setColor(Color.BLACK);
	g.drawPolygon(p);

	g.setColor(Color.WHITE);
	g.fillRect(8, 10, 8, 10);
	g.setColor(Color.BLACK);
	g.drawRect(8, 10, 8, 10);

	g.setColor(saved);
	g.translate(-x, -y);
      }
    };

  /** An icon for the "list view" button. */
  protected Icon listViewIcon = new Icon()
    {
      public int getIconHeight()
      {
	return ICON_SIZE;
      }

      public int getIconWidth()
      {
	return ICON_SIZE;
      }

      // Not needed. Only simplifies things until we get real icons.
      private void paintPartial(Graphics g, int x, int y)
      {
	Color saved = g.getColor();
	g.translate(x, y);

	g.setColor(Color.GRAY);
	g.drawRect(1, 1, 7, 10);
	g.drawLine(8, 6, 11, 6);

	g.setColor(saved);
	g.translate(-x, -y);
      }

      public void paintIcon(Component c, Graphics g, int x, int y)
      {
	Color saved = g.getColor();
	g.translate(x, y);

	paintPartial(g, 0, 0);
	paintPartial(g, 12, 0);
	paintPartial(g, 0, 12);
	paintPartial(g, 12, 12);

	g.setColor(saved);
	g.translate(-x, -y);
      }
    };

  /** An icon for the "new folder" button. */
  protected Icon newFolderIcon = directoryIcon;

  /** The localised mnemonic for the "open" button. */
  protected int openButtonMnemonic;

  /** The localised text for the "open" button. */
  protected String openButtonText;

  /** The localised tool tip text for the "open" button. */
  protected String openButtonToolTipText;

  /** The localised mnemonic for the "save" button. */
  protected int saveButtonMnemonic;

  /** The localised text for the "save" button. */
  protected String saveButtonText;

  /** The localised tool tip text for the save button. */
  protected String saveButtonToolTipText;

  /** The localised mnemonic for the "update" button. */
  protected int updateButtonMnemonic;

  /** The localised text for the "update" button. */
  protected String updateButtonText;

  /** The localised tool tip text for the "update" button. */
  protected String updateButtonToolTipText;

  /** An icon for the "up folder" button. */
  protected Icon upFolderIcon = new Icon()
    {
      public int getIconHeight()
      {
	return ICON_SIZE;
      }

      public int getIconWidth()
      {
	return ICON_SIZE;
      }

      public void paintIcon(Component comp, Graphics g, int x, int y)
      {
	Color saved = g.getColor();
	g.translate(x, y);

	Point a = new Point(3, 7);
	Point b = new Point(3, 21);
	Point c = new Point(21, 21);
	Point d = new Point(21, 12);
	Point e = new Point(16, 12);
	Point f = new Point(13, 7);

	Polygon dir = new Polygon(new int[] { a.x, b.x, c.x, d.x, e.x, f.x },
	                          new int[] { a.y, b.y, c.y, d.y, e.y, f.y }, 6);

	g.setColor(new Color(153, 204, 255));
	g.fillPolygon(dir);
	g.setColor(Color.BLACK);
	g.drawPolygon(dir);

	a = new Point(12, 15);
	b = new Point(9, 18);
	c = new Point(15, 18);

	Polygon arrow = new Polygon(new int[] { a.x, b.x, c.x },
	                            new int[] { a.y, b.y, c.y }, 3);

	g.fillPolygon(arrow);

	g.drawLine(12, 15, 12, 22);

	g.translate(-x, -y);
	g.setColor(saved);
      }
    };

  // -- begin private, but package local since used in inner classes --

  /** The file chooser component represented by this UI delegate. */
  JFileChooser filechooser;

  /** The file list. */
  JList filelist;

  /** The combo box used to display/select file filters. */
  JComboBox filters;

  /** The model for the directory list. */
  BasicDirectoryModel model;

  /** The file filter for all files. */
  FileFilter acceptAll = new AcceptAllFileFilter();

  /** The default file view. */
  FileView fv = new BasicFileView();

  /** The icon size. */
  static final int ICON_SIZE = 24;

  /** A combo box for display/selection of parent directories. */
  JComboBox parents;

  /** The current file name. */
  String filename;

  /** The accept (open/save) button. */
  JButton accept;

  /** The cancel button. */
  JButton cancel;

  /** The button to move up to the parent directory. */
  JButton upFolderButton;

  /** The button to create a new directory. */
  JButton newFolderButton;

  /** The button to move to the user's home directory. */
  JButton homeFolderButton;

  /** An optional accessory panel. */
  JPanel accessoryPanel;

  /** A property change listener. */
  PropertyChangeListener propertyChangeListener;

  /** The text describing the filter for "all files". */
  String acceptAllFileFilterText;

  /** The text describing a directory type. */
  String dirDescText;

  /** The text describing a file type. */
  String fileDescText;

  /** Is a directory selected? */
  boolean dirSelected = false;

  /** The current directory. */
  File currDir = null;

  // FIXME: describe what is contained in the bottom panel
  /** The bottom panel. */
  JPanel bottomPanel;
  
  /** The close panel. */
  JPanel closePanel;