demo.java

gcc的组建

/* SwingDemo.java -- An example of using the javax.swing UI.
   Copyright (C) 2003, 2004  Free Software Foundation, Inc.

This file is part of GNU Classpath examples.

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.
*/


package gnu.classpath.examples.swing;

import java.awt.*;
import java.awt.event.*;

import javax.swing.*;
import javax.swing.tree.*;
import javax.swing.border.*;

import javax.swing.plaf.metal.DefaultMetalTheme;
import javax.swing.plaf.metal.MetalLookAndFeel;
import javax.swing.plaf.metal.OceanTheme;

import java.net.URL;

public class Demo
{
  JFrame frame;
  static Color blueGray = new Color(0xdc, 0xda, 0xd5);

  static
  {
    try
      {
        if (System.getProperty("swing.defaultlaf") == null)
          {
            StringBuffer text = new StringBuffer();
            text.append("You may change the Look and Feel of this\n");
            text.append("Demo by setting the system property\n");
            text.append("-Dswing.defaultlaf=<LAFClassName>\n");
	    text.append("\n");
            text.append("Possible values for <LAFClassName> are:\n");
	    text.append("\n");
            text.append("* javax.swing.plaf.metal.MetalLookAndFeel\n");
            text.append("  the default GNU Classpath L&F\n");
	    text.append("\n");
            text.append("* gnu.classpath.examples.swing.GNULookAndFeel\n");
            text.append("  the GNU Look and Feel\n");
            text.append("  (derived from javax.swing.plaf.basic.BasicLookAndFeel)\n");
	    text.append("\n");
            text.append("MetalLookAndFeel supports different Themes.\n");
	    text.append("DefaultMetalTheme (the default) and OceanTheme (in development)\n");

	    final String DEFAULT = "MetalLookAndFeel (default)";
	    final String OCEAN = "MetalLookAndFeel (Ocean)";
	    final String GNU = "GNULookAndFeel";
	    final String[] lafs = new String[] { DEFAULT, OCEAN, GNU };

	    int laf = JOptionPane.showOptionDialog(null, text /* textPane */,
						   "Look and Feel choice",
						   JOptionPane.OK_OPTION,
						   JOptionPane.QUESTION_MESSAGE,
						   null, lafs, DEFAULT);
        if (laf == 0)
          {
            MetalLookAndFeel.setCurrentTheme(new DefaultMetalTheme());
            UIManager.setLookAndFeel(new MetalLookAndFeel());
          }
	    if (laf == 1)
	      {
	        MetalLookAndFeel.setCurrentTheme(new OceanTheme());
	        UIManager.setLookAndFeel(new MetalLookAndFeel());
	      }
	    else if (laf == 2)
	      UIManager.setLookAndFeel(new GNULookAndFeel());
          }
      }
    catch (UnsupportedLookAndFeelException e)
      {
        System.err.println("Cannot install GNULookAndFeel, exiting");
        System.exit(1);
      }
  }

  static Icon stockIcon(String s)
  {
    return getIcon("/gnu/classpath/examples/icons/stock-" + s + ".png", s);
  }

  static Icon bigStockIcon(String s)
  {
    return getIcon("/gnu/classpath/examples/icons/big-" + s + ".png", s);
  }

  static Icon getIcon(String location, String name)
  {
    URL url = Demo.class.getResource(location);
    if (url == null) System.err.println("WARNING " + location + " not found.");
    return new ImageIcon(url, name);
  }

  static JMenuBar mkMenuBar()
  {
    JMenuBar bar = new JMenuBar();
    
    JMenu file = new JMenu("File");
    JMenu edit = new JMenu("Edit");
    JMenu help = new JMenu("Help");

    file.setMnemonic(KeyEvent.VK_F);
    edit.setMnemonic(KeyEvent.VK_E);
    help.setMnemonic(KeyEvent.VK_H);

    file.add(new JMenuItem("New", stockIcon("new")));
    file.add(new JMenuItem("Open", stockIcon("open")));

    JMenu recent = new JMenu("Recent Files...");
    recent.add(new JMenuItem("war-and-peace.txt"));
    recent.add(new JMenuItem("taming-of-shrew.txt"));
    recent.add(new JMenuItem("sun-also-rises.txt"));
    file.add(recent);
    file.add(new JMenuItem("Save", stockIcon("save")));
    file.add(new JMenuItem("Save as...", stockIcon("save-as")));

    JMenuItem exit = new JMenuItem("Exit", stockIcon("quit"));
    exit.addActionListener(new ActionListener()
      {
        public void actionPerformed(ActionEvent e)
        {
          System.exit(1);
        }
      });

    file.add(exit);

    edit.add(new JMenuItem("Cut", stockIcon("cut")));
    edit.add(new JMenuItem("Copy", stockIcon("copy")));
    edit.add(new JMenuItem("Paste", stockIcon("paste")));

    JMenu preferences = new JMenu("Preferences...");
    preferences.add(new JCheckBoxMenuItem("Microphone Active",
		    stockIcon("mic")));
    preferences.add(new JCheckBoxMenuItem("Check Spelling",
		    stockIcon("spell-check")));
    preferences.add(new JCheckBoxMenuItem("World Peace"));
    preferences.add(new JSeparator());
    preferences.add(new JRadioButtonMenuItem("Radio Button"));
    edit.add(preferences);

    JMenu examples = new JMenu("Examples");
    new PopUpAction("Buttons",
		    (new ButtonDemo("Button Demo")).createContent(),
		    examples);
    
    new PopUpAction("Toggles",
		    mkToggle("cool and refreshing"),
		    examples);

    new PopUpAction("Checkbox",
		    mkCheckbox("ice cold"),
		    examples);

    new PopUpAction("Radio",
		    mkRadio("delicious"),
		    examples);

    new PopUpAction("Slider",
		    (new SliderDemo("Slider Demo")).createContent(),
		    examples);

    new PopUpAction("ProgressBar",
                    ProgressBarDemo.createContent(),
                    examples);

    new PopUpAction("List",
		    mkListPanel(new String[] { "hello",
					       "this",
					       "is",
					       "a",
					       "list",
                                               "that",
                                               "wraps",
                                               "over"}),
		    examples);

    new PopUpAction("Scrollbar",
		    (new ScrollBarDemo("ScrollBarDemo")).createContent(),
		    examples);

    new PopUpAction("Viewport",
		    mkViewportBox(mkBigButton("View Me!")),
		    examples);

    new PopUpAction("ScrollPane",
                    mkScrollPane(mkBigButton("Scroll Me!")),
                    examples);

    new PopUpAction("TabPane",
		    mkTabs(new String[] {"happy",
					 "sad",
					 "indifferent"}),
		    examples);

    new PopUpAction("Spinner",
		    mkSpinner(),
		    examples);

    new PopUpAction("TextField",
		    (new TextFieldDemo("TextField Demo")).createContent(),
		    examples);

    new PopUpAction("FileChooser",
                    (new FileChooserDemo("FileChooser Demo")).createContent(),
                    examples);

    new PopUpAction("ColorChooser",
		    mkColorChooser(),
		    examples);

    new PopUpAction("ComboBox",
		    (new ComboBoxDemo("ComboBox Demo")).createContent(),
		    examples);

    new PopUpAction("Editor",
                    mkEditorPane(),
                    examples);
    
    new PopUpAction("Tree",
                    mkTree(),
                    examples);

    new PopUpAction("Table",
                    mkTable(),
                    examples);

    help.add(new JMenuItem("just play with the widgets"));
    help.add(new JMenuItem("and enjoy the sensation of"));
    help.add(new JMenuItem("your neural connections growing"));

    bar.add(file);
    bar.add(edit);
    bar.add(examples);
    bar.add(help);
    return bar;
  }

  static void triggerDialog(final JButton but, final String dir)
  {
    but.addActionListener(new ActionListener()
      {
        public void actionPerformed(ActionEvent e)
        {
          JOptionPane.showConfirmDialog(but, 
                                        "Sure you want to go " + dir + "?",
                                        "Confirm",
                                        JOptionPane.OK_CANCEL_OPTION, 
                                        JOptionPane.QUESTION_MESSAGE,
                                        bigStockIcon("warning"));
        }
      });
  }

  static JToolBar mkToolBar()
  {
    JToolBar bar = new JToolBar();

    JButton b = mkButton(stockIcon("go-back"));
    triggerDialog(b, "back");
    bar.add(b);

    b = mkButton(stockIcon("go-down"));
    triggerDialog(b, "down");
    bar.add(b);

    b = mkButton(stockIcon("go-forward"));
    triggerDialog(b, "forward");
    bar.add(b);
    return bar;
  }

  static String valign2str(int a)
  {
    switch (a)
      {
      case SwingConstants.CENTER:
        return "Center";
      case SwingConstants.TOP:
        return "Top";
      case SwingConstants.BOTTOM:
        return "Bottom";
      default:
        return "Unknown";
      }
  }

  static String halign2str(int a)
  {
    switch (a)
      {
      case SwingConstants.CENTER:
        return "Center";
      case SwingConstants.RIGHT:
        return "Right";
      case SwingConstants.LEFT:
        return "Left";
      default:
        return "Unknown";
      }
  }

  static JButton mkButton(String title, Icon icon, 
                          int hAlign, int vAlign,
                          int hPos, int vPos)
  {    
    JButton b;
    if (icon == null)
      b = new JButton(title);
    else if (title == null)
      b = new JButton(icon);
    else
      b = new JButton(title, icon);
    
    b.setToolTipText(title);
    if (hAlign != -1) b.setHorizontalAlignment(hAlign);
    if (vAlign != -1) b.setVerticalAlignment(vAlign);
    if (hPos != -1) b.setHorizontalTextPosition(hPos);
    if (vPos != -1) b.setVerticalTextPosition(vPos);      
    return b;
  }

  static JButton mkButton(String title)
  {
    return mkButton(title, null, -1, -1, -1, -1);
  }

  static JButton mkButton(Icon i)
  {
    return mkButton(null, i, -1, -1, -1, -1);
  }


  static JPanel mkButtonWorld()
  {
    Icon ii = bigStockIcon("home");
    int CENTER = SwingConstants.CENTER;
    int TOP = SwingConstants.TOP;
    int BOTTOM = SwingConstants.BOTTOM;

    int[] valigns = new int[] {SwingConstants.CENTER,
                               SwingConstants.TOP,
                               SwingConstants.BOTTOM};

    int[] haligns = new int[] {SwingConstants.CENTER,
                               SwingConstants.RIGHT,
                               SwingConstants.LEFT};

    Border[] borders = new Border[] { 
      new SoftBevelBorder(BevelBorder.RAISED),
      new SoftBevelBorder(BevelBorder.LOWERED),
      new BevelBorder(BevelBorder.RAISED),