Subversion Repositories openrisc

/* TextFieldDemo.java -- An example showing various textfields in Swing.

   Copyright (C) 2005, 2006 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.BorderLayout;

import java.awt.Color;

import java.awt.Font;

import java.awt.Graphics;

import java.awt.GridLayout;

import java.awt.Point;

import java.awt.Rectangle;

import java.awt.Shape;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.BorderFactory;

import javax.swing.Box;

import javax.swing.BoxLayout;

import javax.swing.JButton;

import javax.swing.JCheckBox;

import javax.swing.JComponent;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextField;

import javax.swing.SwingUtilities;

import javax.swing.border.CompoundBorder;

import javax.swing.border.EmptyBorder;

import javax.swing.border.LineBorder;

import javax.swing.border.TitledBorder;

import javax.swing.text.BadLocationException;

import javax.swing.text.DefaultCaret;

import javax.swing.text.Highlighter;

import javax.swing.text.JTextComponent;

import javax.swing.text.View;

import javax.swing.text.LayeredHighlighter.LayerPainter;

/**

 * A simple textfield demo showing various textfields in different states.

 */

public class TextFieldDemo

  extends JPanel

  implements ActionListener

{

  /**

   * A custom caret for demonstration purposes. This class is inspired by the

   * CornerCaret from the OReilly Swing book.

   *

   * @author Roman Kennke (kennke@aicas.com)

   */

  static class CornerCaret extends DefaultCaret

  {

    public CornerCaret()

    {

      super();

      setBlinkRate(500);

    }

    protected synchronized void damage(Rectangle r)

    {

      if (r == null) return;

      x = r.x;

      y = r.y + (r.height * 4 / 5 - 3);

      width = 5;

      height = 5;

      repaint();

    }

    public void paint(Graphics g)

    {

      JTextComponent comp = getComponent();

      if (comp == null) return;

      int dot = getDot();

      Rectangle r = null;

      try

        {

          r = comp.modelToView(dot);

        }

      catch (BadLocationException e)

        {

          return;

        }

      if (r == null) return;

      int dist = r.height * 4 / 5 - 3;

      if ((x != r.x) || (y != r.y + dist))

        {

          repaint();

          x = r.x;

          y = r.y + dist;

          width = 5;

          height = 5;

        }

      if (isVisible())

        {

          g.drawLine(r.x, r.y + dist, r.x, r.y + dist + 4);

          g.drawLine(r.x, r.y + dist + 4, r.x + 4, r.y + dist + 4);

        }

    }

  }

  static class DemoHighlightPainter

  extends LayerPainter

  {

    static DemoHighlightPainter INSTANCE = new DemoHighlightPainter();

    static Color[] colors = { Color.BLUE, Color.CYAN, Color.GRAY, Color.GREEN,

                         Color.MAGENTA, Color.ORANGE, Color.PINK,

                         Color.ORANGE, Color.RED, Color.BLUE, Color.YELLOW };

    public DemoHighlightPainter()

    {

      super();

    }

    private void paintHighlight(Graphics g, Rectangle rect)

    {

      g.fillRect(rect.x, rect.y, rect.width, rect.height);

    }

    public void paint(Graphics g, int p0, int p1, Shape bounds, JTextComponent t)

    {

      try

        {

          for (int i = p0; i < p1; i++)

            {

              Rectangle r = t.modelToView(i);

              Point l1 = t.modelToView(i + 1).getLocation();

              g.setColor(colors[(int) (Math.random() * colors.length)]);

              g.fillOval(r.x, r.y, l1.x - r.x, r.height);

            }

        }

      catch (BadLocationException ble)

        {

        }

    }

    public Shape paintLayer(Graphics g, int p0, int p1, Shape bounds,

                            JTextComponent c, View view)

    {

      paint(g, p0, p1, bounds, c);

      return bounds;

    }

  }

  /**

   * The left aligned textfields and state buttons.

   */

  Compound compound1;

  /**

   * The right aligned textfields and state buttons.

   */

  Compound compound2;

  /**

   * The centered textfields and state buttons.

   */

  Compound compound3;

  /**

   * The custom colored textfields and state buttons.

   */

  Compound compound4;

  Compound compound5;

  /**

   * Some miscellaneous textfield demos.

   */

  Compound compound6;

  /**

   * Some textfields with custom borders.

   */

  Compound compound7;

  /**

   * Creates a new demo instance.

   */

  public TextFieldDemo()

  {

    super();

    createContent();

  }

  /**

   * When the demo is run independently, the frame is displayed, so we should

   * initialise the content panel (including the demo content and a close

   * button).  But when the demo is run as part of the Swing activity board,

   * only the demo content panel is used, the frame itself is never displayed,

   * so we can avoid this step.

   */

  void initFrameContent()

  {

    JPanel closePanel = new JPanel();

    JButton closeButton = new JButton("Close");

    closeButton.setActionCommand("CLOSE");

    closeButton.addActionListener(this);

    closePanel.add(closeButton);

    add(closePanel, BorderLayout.SOUTH);

  }

  /**

   * Returns a panel with the demo content.  The panel

   * uses a BorderLayout(), and the BorderLayout.SOUTH area

   * is empty, to allow callers to add controls to the

   * bottom of the panel if they want to (a close button is

   * added if this demo is being run as a standalone demo).

   */

  private void createContent()

  {

    setLayout(new BorderLayout());

    JPanel panel = new JPanel(new GridLayout(7, 1));

    panel.add(createLeftAlignedPanel());

    panel.add(createRightAlignedPanel());

    panel.add(createCenteredPanel());

    panel.add(createCustomColorPanel1());

    panel.add(createCustomColorPanel2());

    panel.add(createCustomBordersPanel());

    panel.add(createMiscPanel());

    // Put everything in a scroll pane to make it neccessary

    // to reach the bottom inner panels if the screen is to small.

    add(new JScrollPane(panel));

  }

  private JPanel createLeftAlignedPanel()

  {

    compound1 = createTextFieldCompound("Left aligned", 1);

    compound1.setupTextfields("Hello World!",

                             JTextField.LEFT,

                             new Font[] { new Font("Dialog", Font.PLAIN, 8),

                                          new Font("Dialog", Font.ITALIC, 12),

                                          new Font("Dialog", Font.BOLD, 14)

                             });

    return compound1.panel;

  }

  private Compound createTextFieldCompound(String title, int actionCommandNo)

  {

    Compound compound = new Compound();

    compound.panel = new JPanel(new BorderLayout());

    compound.panel.setBorder(BorderFactory.createTitledBorder(title));

    compound.textFieldPanel = new JPanel();

    compound.textFieldPanel.setLayout(new BoxLayout(compound.textFieldPanel, BoxLayout.X_AXIS));

    compound.panel.add(compound.textFieldPanel);

    JPanel statePanel = new JPanel();

    statePanel.setLayout(new BoxLayout(statePanel, BoxLayout.Y_AXIS));

    statePanel.add(Box.createVerticalGlue());

    compound.enabled = new JCheckBox("enabled");

    compound.enabled.setSelected(true);

    compound.enabled.addActionListener(this);

    compound.enabled.setActionCommand("ENABLED" + actionCommandNo);

    statePanel.add(compound.enabled);

    compound.editable = new JCheckBox("editable");

    compound.editable.setSelected(true);

    compound.editable.addActionListener(this);

    compound.editable.setActionCommand("EDITABLE" + actionCommandNo);

    statePanel.add(compound.editable);

    statePanel.add(Box.createVerticalGlue());

    compound.panel.add(statePanel, BorderLayout.EAST);

    return compound;

  }

  private JPanel createRightAlignedPanel()

  {

    compound2 = createTextFieldCompound("Right aligned", 2);

    compound2.setupTextfields("Hello World!",

                              JTextField.RIGHT,

                              new Font[] { new Font("Dialog", Font.PLAIN, 8),

                                           new Font("Dialog", Font.ITALIC, 12),

                                           new Font("Dialog", Font.BOLD, 14)

                              });

    return compound2.panel;

  }

  private JPanel createCenteredPanel()

  {

    compound3 = createTextFieldCompound("Centered", 3);

    compound3.setupTextfields("Hello World!",

                              JTextField.CENTER,

                              new Font[] { new Font("Dialog", Font.PLAIN, 8),

                                           new Font("Dialog", Font.ITALIC, 12),

                                           new Font("Dialog", Font.BOLD, 14)

                              });

    return compound3.panel;

  }

  private JPanel createCustomColorPanel1()

  {

    compound4 = createTextFieldCompound("Custom colors I", 4);

    compound4.textfield1 = new JTextField("custom foreground");

    compound4.textfield1.setForeground(Color.RED);

    compound4.textFieldPanel.add(compound4.textfield1);

    compound4.textfield2 = new JTextField("custom background");

    compound4.textfield2.setBackground(Color.YELLOW);

    compound4.textFieldPanel.add(compound4.textfield2);

    compound4.textfield3 = new JTextField("custom foreground and background");

    compound4.textfield3.setForeground(Color.RED);

    compound4.textfield3.setBackground(Color.YELLOW);

    compound4.textFieldPanel.add(compound4.textfield3);

    return compound4.panel;

  }

  private JPanel createCustomColorPanel2()

  {

    compound5 = createTextFieldCompound("Custom colors II", 5);

    compound5.textfield1 = new JTextField("custom disabled textcolor");

    compound5.textfield1.setDisabledTextColor(Color.BLUE);

    compound5.textFieldPanel.add(compound5.textfield1);

    compound5.textfield2 = new JTextField("custom selected text color");

    compound5.textfield2.setSelectedTextColor(Color.RED);

    compound5.textFieldPanel.add(compound5.textfield2);

    compound5.textfield3 = new JTextField("custom selection color");

    compound5.textfield3.setSelectionColor(Color.BLACK);

    compound5.textFieldPanel.add(compound5.textfield3);

    return compound5.panel;

  }

  private JPanel createMiscPanel()

  {

    compound6 = createTextFieldCompound("Miscellaneous", 6);

    compound6.textfield1 = new JTextField("Custom Caret");

    compound6.textfield1.setCaret(new CornerCaret());

    compound6.textFieldPanel.add(compound6.textfield1);

    compound6.textfield2 = new JTextField("Custom Caret color");

    compound6.textfield2.setForeground(Color.LIGHT_GRAY);

    compound6.textfield2.setBackground(Color.BLACK);

    compound6.textfield2.setSelectedTextColor(Color.BLACK);

    compound6.textfield2.setCaretColor(Color.WHITE);

    compound6.textfield2.setSelectionColor(Color.DARK_GRAY);

    compound6.textFieldPanel.add(compound6.textfield2);

    compound6.textfield3 = new JTextField("Custom highlighter");

    compound6.textfield3.setCaret(new DefaultCaret()

    {

      public Highlighter.HighlightPainter getSelectionPainter()

      {

        return DemoHighlightPainter.INSTANCE;

      }

    });

    compound6.textFieldPanel.add(compound6.textfield3);

    return compound6.panel;

  }

  private JPanel createCustomBordersPanel()

  {

    compound7 = createTextFieldCompound("Custom borders", 7);

    compound7.textfield1 = new JTextField("red 5 pixel lineborder");

    compound7.textfield1.setBorder(new LineBorder(Color.RED, 5));

    compound7.textFieldPanel.add(compound7.textfield1);

    compound7.textfield2 = new JTextField("complex irregular border");

    CompoundBorder innerCompound = new CompoundBorder(new EmptyBorder(5, 40, 15, 10), new LineBorder(Color.BLACK));

    CompoundBorder outerCompound = new CompoundBorder(new LineBorder(Color.BLACK), innerCompound);

    compound7.textfield2.setBorder(outerCompound);

    compound7.textFieldPanel.add(compound7.textfield2);

    compound7.textfield3 = new JTextField("a titled border", 10);

    compound7.textfield3.setBorder(new TitledBorder(null, "Freak Out Border", TitledBorder.CENTER, TitledBorder.LEFT));

    compound7.textFieldPanel.add(compound7.textfield3);

    return compound7.panel;

  }

  public void actionPerformed(ActionEvent e)

  {

    if (e.getActionCommand().equals("CLOSE"))

      {

        System.exit(0);

      }

    else if (e.getActionCommand().equals("ENABLED1"))

      {

        boolean enabled = compound1.enabled.isSelected();

        compound1.textfield1.setEnabled(enabled);

        compound1.textfield2.setEnabled(enabled);

        compound1.textfield3.setEnabled(enabled);

      }

    else if (e.getActionCommand().equals("EDITABLE1"))

      {

        boolean editable = compound1.editable.isSelected();

        compound1.textfield1.setEditable(editable);

        compound1.textfield2.setEditable(editable);

        compound1.textfield3.setEditable(editable);

      }

    else if (e.getActionCommand().equals("ENABLED2"))

      {

        boolean enabled = compound2.enabled.isSelected();

        compound2.textfield1.setEnabled(enabled);

        compound2.textfield2.setEnabled(enabled);

        compound2.textfield3.setEnabled(enabled);

      }

    else if (e.getActionCommand().equals("EDITABLE2"))

      {

        boolean editable = compound2.editable.isSelected();

        compound2.textfield1.setEditable(editable);

        compound2.textfield2.setEditable(editable);

        compound2.textfield3.setEditable(editable);

      }

    else if (e.getActionCommand().equals("ENABLED3"))

      {

        boolean enabled = compound3.enabled.isSelected();

        compound3.textfield1.setEnabled(enabled);

        compound3.textfield2.setEnabled(enabled);

        compound3.textfield3.setEnabled(enabled);

      }

    else if (e.getActionCommand().equals("EDITABLE3"))

      {

        boolean editable = compound3.editable.isSelected();

        compound3.textfield1.setEditable(editable);

        compound3.textfield2.setEditable(editable);

        compound3.textfield3.setEditable(editable);

      }

    else if (e.getActionCommand().equals("ENABLED4"))

      {

        boolean enabled = compound4.enabled.isSelected();

        compound4.textfield1.setEnabled(enabled);

        compound4.textfield2.setEnabled(enabled);

        compound4.textfield3.setEnabled(enabled);

      }

    else if (e.getActionCommand().equals("EDITABLE4"))

      {

        boolean editable = compound4.editable.isSelected();

        compound4.textfield1.setEditable(editable);

        compound4.textfield2.setEditable(editable);

        compound4.textfield3.setEditable(editable);

      }

    else if (e.getActionCommand().equals("ENABLED5"))

      {

        boolean enabled = compound5.enabled.isSelected();

        compound5.textfield1.setEnabled(enabled);

        compound5.textfield2.setEnabled(enabled);

        compound5.textfield3.setEnabled(enabled);

      }

    else if (e.getActionCommand().equals("EDITABLE5"))

      {

        boolean editable = compound5.editable.isSelected();

        compound5.textfield1.setEditable(editable);

        compound5.textfield2.setEditable(editable);

        compound5.textfield3.setEditable(editable);

      }

    else if (e.getActionCommand().equals("ENABLED6"))

      {

        boolean enabled = compound6.enabled.isSelected();

        compound6.textfield1.setEnabled(enabled);

        compound6.textfield2.setEnabled(enabled);

        compound6.textfield3.setEnabled(enabled);

      }

    else if (e.getActionCommand().equals("EDITABLE6"))

      {

        boolean editable = compound6.editable.isSelected();

        compound6.textfield1.setEditable(editable);

        compound6.textfield2.setEditable(editable);

        compound6.textfield3.setEditable(editable);

      }

    else if (e.getActionCommand().equals("ENABLED7"))

      {

        boolean enabled = compound7.enabled.isSelected();

        compound7.textfield1.setEnabled(enabled);

        compound7.textfield2.setEnabled(enabled);

        compound7.textfield3.setEnabled(enabled);

      }

    else if (e.getActionCommand().equals("EDITABLE7"))

      {

        boolean editable = compound7.editable.isSelected();

        compound7.textfield1.setEditable(editable);

        compound7.textfield2.setEditable(editable);

        compound7.textfield3.setEditable(editable);

      }

  }

  public static void main(String[] args)

  {

    SwingUtilities.invokeLater

    (new Runnable()

     {

       public void run()

       {

         TextFieldDemo app = new TextFieldDemo();

         app.initFrameContent();

         JFrame frame = new JFrame("TextField demo");

         frame.getContentPane().add(app);

         frame.pack();

         frame.setVisible(true);

       }

     });

  }

  /**

   * Returns a DemoFactory that creates a TextFieldDemo.

   *

   * @return a DemoFactory that creates a TextFieldDemo

   */

  public static DemoFactory createDemoFactory()

  {

    return new DemoFactory()

    {

      public JComponent createDemo()

      {

        return new TextFieldDemo();

      }

    };

  }

  static class Compound

  {

    JTextField textfield1;

    JTextField textfield2;

    JTextField textfield3;

    JCheckBox enabled;

    JCheckBox editable;

    JPanel textFieldPanel;

    JPanel panel;

    /** Creates and initializes the textfields with the same text and

     * alignment but with a different font.

     *

     * @param title The text for the textfields.

     * @param align The alignment for the textfields.

     * @param fonts The fonts to be used for the textfields.

     */

    void setupTextfields(String title, int align, Font[] fonts)

    {

      textfield1 = new JTextField(title);

      textfield1.setHorizontalAlignment(align);

      textfield1.setFont(fonts[0]);

      textFieldPanel.add(textfield1);

      textfield2 = new JTextField(title);

      textfield2.setHorizontalAlignment(align);

      textfield2.setFont(fonts[1]);

      textFieldPanel.add(textfield2);

      textfield3 = new JTextField(title);

      textfield3.setHorizontalAlignment(align);

      textfield3.setFont(fonts[2]);

      textFieldPanel.add(textfield3);

    }

  }

}