| /* SwingLabelPeer.java -- A Swing based peer for AWT labels |
| Copyright (C) 2006 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| 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. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package gnu.java.awt.peer.swing; |
| |
| import java.awt.Image; |
| import java.awt.Label; |
| import java.awt.Point; |
| import java.awt.event.KeyEvent; |
| import java.awt.event.MouseEvent; |
| import java.awt.peer.LabelPeer; |
| |
| import javax.swing.JComponent; |
| import javax.swing.JLabel; |
| |
| |
| /** |
| * A Label peer based on {@link JLabel}. |
| * |
| * @author Roman Kennke (kennke@aicas.com) |
| */ |
| public class SwingLabelPeer |
| extends SwingComponentPeer |
| implements LabelPeer |
| { |
| |
| /** |
| * A spezialized Swing label used to paint the label for the AWT Label. |
| * |
| * @author Roman Kennke (kennke@aicas.com) |
| */ |
| private class SwingLabel |
| extends JLabel |
| implements SwingComponent |
| { |
| |
| /** |
| * Returns this label. |
| * |
| * @return <code>this</code> |
| */ |
| public JComponent getJComponent() |
| { |
| return this; |
| } |
| |
| /** |
| * Handles mouse events by forwarding it to |
| * <code>processMouseEvent()</code>. |
| * |
| * @param ev the mouse event |
| */ |
| public void handleMouseEvent(MouseEvent ev) |
| { |
| processMouseEvent(ev); |
| } |
| |
| /** |
| * Handles mouse motion events by forwarding it to |
| * <code>processMouseMotionEvent()</code>. |
| * |
| * @param ev the mouse motion event |
| */ |
| public void handleMouseMotionEvent(MouseEvent ev) |
| { |
| processMouseMotionEvent(ev); |
| } |
| |
| /** |
| * Handles key events by forwarding it to <code>processKeyEvent()</code>. |
| * |
| * @param ev the mouse event |
| */ |
| public void handleKeyEvent(KeyEvent ev) |
| { |
| processKeyEvent(ev); |
| } |
| |
| /** |
| * Overridden so that this method returns the correct value even without a |
| * peer. |
| * |
| * @return the screen location of the button |
| */ |
| public Point getLocationOnScreen() |
| { |
| return SwingLabelPeer.this.getLocationOnScreen(); |
| } |
| |
| /** |
| * Overridden so that the isShowing method returns the correct value for the |
| * swing button, even if it has no peer on its own. |
| * |
| * @return <code>true</code> if the button is currently showing, |
| * <code>false</code> otherwise |
| */ |
| public boolean isShowing() |
| { |
| boolean retVal = false; |
| if (SwingLabelPeer.this.awtComponent != null) |
| retVal = SwingLabelPeer.this.awtComponent.isShowing(); |
| return retVal; |
| } |
| |
| /** |
| * Overridden, so that the Swing button can create an Image without its |
| * own peer. |
| * |
| * @param w the width of the image |
| * @param h the height of the image |
| * |
| * @return an image |
| */ |
| public Image createImage(int w, int h) |
| { |
| return SwingLabelPeer.this.createImage(w, h); |
| } |
| |
| } |
| |
| /** |
| * Creates a new <code>SwingLabelPeer</code> for the specified AWT label. |
| * |
| * @param label the AWT label |
| */ |
| public SwingLabelPeer(Label label) |
| { |
| super(); |
| SwingLabel swingLabel = new SwingLabel(); |
| swingLabel.setText(label.getText()); |
| swingLabel.setHorizontalAlignment(label.getAlignment()); |
| swingLabel.setOpaque(true); |
| init(label, swingLabel); |
| } |
| |
| /** |
| * Sets the text of the label. This is implemented to set the text on the |
| * Swing label. |
| * |
| * @param text the text to be set |
| */ |
| public void setText(String text) |
| { |
| ((JLabel) swingComponent.getJComponent()).setText(text); |
| } |
| |
| /** |
| * Sets the horizontal alignment of the label. This is implemented to |
| * set the alignment on the Swing label. |
| * |
| * @param alignment the horizontal alignment |
| * |
| * @see Label#LEFT |
| * @see Label#RIGHT |
| * @see Label#CENTER |
| */ |
| public void setAlignment(int alignment) |
| { |
| ((JLabel) swingComponent.getJComponent()).setHorizontalAlignment(alignment); |
| } |
| |
| } |