1 /* SwingLabelPeer.java -- A Swing based peer for AWT labels
2 Copyright (C) 2006 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
38 package gnu.java.awt.peer.swing;
40 import java.awt.Container;
41 import java.awt.Graphics;
42 import java.awt.Image;
43 import java.awt.Label;
44 import java.awt.Point;
45 import java.awt.event.KeyEvent;
46 import java.awt.event.MouseEvent;
47 import java.awt.peer.LabelPeer;
49 import javax.swing.JComponent;
50 import javax.swing.JLabel;
54 * A Label peer based on {@link JLabel}.
56 * @author Roman Kennke (kennke@aicas.com)
58 public class SwingLabelPeer
59 extends SwingComponentPeer
64 * A spezialized Swing label used to paint the label for the AWT Label.
66 * @author Roman Kennke (kennke@aicas.com)
68 private class SwingLabel
70 implements SwingComponent
75 SwingLabel(Label label)
83 * @return <code>this</code>
85 public JComponent getJComponent()
91 * Handles mouse events by forwarding it to
92 * <code>processMouseEvent()</code>.
94 * @param ev the mouse event
96 public void handleMouseEvent(MouseEvent ev)
98 processMouseEvent(ev);
102 * Handles mouse motion events by forwarding it to
103 * <code>processMouseMotionEvent()</code>.
105 * @param ev the mouse motion event
107 public void handleMouseMotionEvent(MouseEvent ev)
109 processMouseMotionEvent(ev);
113 * Handles key events by forwarding it to <code>processKeyEvent()</code>.
115 * @param ev the mouse event
117 public void handleKeyEvent(KeyEvent ev)
123 * Overridden so that this method returns the correct value even without a
126 * @return the screen location of the button
128 public Point getLocationOnScreen()
130 return SwingLabelPeer.this.getLocationOnScreen();
134 * Overridden so that the isShowing method returns the correct value for the
135 * swing button, even if it has no peer on its own.
137 * @return <code>true</code> if the button is currently showing,
138 * <code>false</code> otherwise
140 public boolean isShowing()
142 boolean retVal = false;
144 retVal = label.isShowing();
149 * Overridden, so that the Swing button can create an Image without its
152 * @param w the width of the image
153 * @param h the height of the image
157 public Image createImage(int w, int h)
159 return SwingLabelPeer.this.createImage(w, h);
162 public Graphics getGraphics()
164 return SwingLabelPeer.this.getGraphics();
167 public Container getParent()
169 Container par = null;
171 par = label.getParent();
177 * Creates a new <code>SwingLabelPeer</code> for the specified AWT label.
179 * @param label the AWT label
181 public SwingLabelPeer(Label label)
184 SwingLabel swingLabel = new SwingLabel(label);
185 swingLabel.setText(label.getText());
186 swingLabel.setOpaque(true);
187 init(label, swingLabel);
188 setAlignment(label.getAlignment());
192 * Sets the text of the label. This is implemented to set the text on the
195 * @param text the text to be set
197 public void setText(String text)
199 ((JLabel) swingComponent.getJComponent()).setText(text);
203 * Sets the horizontal alignment of the label. This is implemented to
204 * set the alignment on the Swing label.
206 * @param alignment the horizontal alignment
212 public void setAlignment(int alignment)
214 JLabel swingLabel = (JLabel) swingComponent.getJComponent();
218 swingLabel.setHorizontalAlignment(JLabel.RIGHT);
221 swingLabel.setHorizontalAlignment(JLabel.CENTER);
225 swingLabel.setHorizontalAlignment(JLabel.LEFT);