1 /* SwingLabelPeer.java -- A Swing based peer for AWT labels
2 Copyright (C) 2006, 2007 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.FocusEvent;
46 import java.awt.event.KeyEvent;
47 import java.awt.event.MouseEvent;
48 import java.awt.peer.LabelPeer;
50 import javax.swing.JComponent;
51 import javax.swing.JLabel;
55 * A Label peer based on {@link JLabel}.
57 * @author Roman Kennke (kennke@aicas.com)
59 public class SwingLabelPeer
60 extends SwingComponentPeer
65 * A spezialized Swing label used to paint the label for the AWT Label.
67 * @author Roman Kennke (kennke@aicas.com)
69 private class SwingLabel
71 implements SwingComponent
76 SwingLabel(Label label)
84 * @return <code>this</code>
86 public JComponent getJComponent()
92 * Handles mouse events by forwarding it to
93 * <code>processMouseEvent()</code>.
95 * @param ev the mouse event
97 public void handleMouseEvent(MouseEvent ev)
99 processMouseEvent(ev);
103 * Handles mouse motion events by forwarding it to
104 * <code>processMouseMotionEvent()</code>.
106 * @param ev the mouse motion event
108 public void handleMouseMotionEvent(MouseEvent ev)
110 processMouseMotionEvent(ev);
114 * Handles key events by forwarding it to <code>processKeyEvent()</code>.
116 * @param ev the mouse event
118 public void handleKeyEvent(KeyEvent ev)
124 * Handles focus events by forwarding it to
125 * <code>processFocusEvent()</code>.
127 * @param ev the Focus event
129 public void handleFocusEvent(FocusEvent ev)
131 processFocusEvent(ev);
135 * Overridden so that this method returns the correct value even without a
138 * @return the screen location of the button
140 public Point getLocationOnScreen()
142 return SwingLabelPeer.this.getLocationOnScreen();
146 * Overridden so that the isShowing method returns the correct value for the
147 * swing button, even if it has no peer on its own.
149 * @return <code>true</code> if the button is currently showing,
150 * <code>false</code> otherwise
152 public boolean isShowing()
154 boolean retVal = false;
156 retVal = label.isShowing();
161 * Overridden, so that the Swing button can create an Image without its
164 * @param w the width of the image
165 * @param h the height of the image
169 public Image createImage(int w, int h)
171 return SwingLabelPeer.this.createImage(w, h);
174 public Graphics getGraphics()
176 return SwingLabelPeer.this.getGraphics();
179 public Container getParent()
181 Container par = null;
183 par = label.getParent();
189 * Creates a new <code>SwingLabelPeer</code> for the specified AWT label.
191 * @param label the AWT label
193 public SwingLabelPeer(Label label)
196 SwingLabel swingLabel = new SwingLabel(label);
197 swingLabel.setText(label.getText());
198 swingLabel.setOpaque(true);
199 init(label, swingLabel);
200 setAlignment(label.getAlignment());
204 * Sets the text of the label. This is implemented to set the text on the
207 * @param text the text to be set
209 public void setText(String text)
211 ((JLabel) swingComponent.getJComponent()).setText(text);
215 * Sets the horizontal alignment of the label. This is implemented to
216 * set the alignment on the Swing label.
218 * @param alignment the horizontal alignment
224 public void setAlignment(int alignment)
226 JLabel swingLabel = (JLabel) swingComponent.getJComponent();
230 swingLabel.setHorizontalAlignment(JLabel.RIGHT);
233 swingLabel.setHorizontalAlignment(JLabel.CENTER);
237 swingLabel.setHorizontalAlignment(JLabel.LEFT);