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Diffstat (limited to 'gcc-4.4.3/libjava/classpath/gnu/java/awt/peer/swing/SwingMenuPeer.java')
| -rw-r--r-- | gcc-4.4.3/libjava/classpath/gnu/java/awt/peer/swing/SwingMenuPeer.java | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/gcc-4.4.3/libjava/classpath/gnu/java/awt/peer/swing/SwingMenuPeer.java b/gcc-4.4.3/libjava/classpath/gnu/java/awt/peer/swing/SwingMenuPeer.java new file mode 100644 index 000000000..ecb54a524 --- /dev/null +++ b/gcc-4.4.3/libjava/classpath/gnu/java/awt/peer/swing/SwingMenuPeer.java @@ -0,0 +1,284 @@ +/* SwingMenuPeer.java -- A Swing based peer for AWT menus + 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.Font; +import java.awt.Menu; +import java.awt.MenuItem; +import java.awt.Point; +import java.awt.event.MouseEvent; +import java.awt.peer.MenuPeer; + +import javax.swing.JMenu; + +/** + * A Swing based peer for the AWT menu. + * + * @author Roman Kennke (kennke@aicas.com) + */ +public class SwingMenuPeer + implements MenuPeer +{ + + /** + * The AWT menu. + */ + Menu awtMenu; + + /** + * The Swing menu. + */ + SwingMenu menu; + + /** + * A specialized JMenu that can be used as 'backend' for an AWT menu. + * + * @author Roman Kennke (kennke@aicas.com) + */ + private class SwingMenu + extends JMenu + { + + /** + * Unconditionally returns <code>true</code>, since we assume that when the + * menu has a peer, it must be showing. + * + * @return <code>true</code> + */ + public boolean isShowing() + { + // FIXME: This might be wrong. Maybe find a better way to do that. + return true; + } + + /** + * Overridden so that we can provide a location even without a real peer + * attached. + * + * @return the screen location of this menu + */ + public Point getLocationOnScreen() + { + Point parentLoc = getParent().getLocationOnScreen(); + parentLoc.x += getX(); + parentLoc.y += getY(); + return parentLoc; + } + + /** + * Handles mouse events by forwarding them to + * <code>processMouseEvent()</code>. + * + * @param ev the mouse event + */ + public void handleMouseEvent(MouseEvent ev) + { + ev.setSource(this); + processMouseEvent(ev); + } + + /** + * Handles mouse events by forwarding them to + * <code>processMouseMotionEvent()</code>. + * + * @param ev the mouse event + */ + public void handleMouseMotionEvent(MouseEvent ev) + { + ev.setSource(this); + processMouseMotionEvent(ev); + } + } + + /** + * Creates a new <code>SwingMenuPeer</code> instance. + * + * @param awtMenu the AWT menu + */ + public SwingMenuPeer(Menu awtMenu) + { + this.awtMenu = awtMenu; + menu = new SwingMenu(); + menu.setDoubleBuffered(false); + menu.setText(awtMenu.getLabel()); + for (int i = 0; i < awtMenu.getItemCount(); i++) + { + MenuItem item = awtMenu.getItem(i); + item.addNotify(); + SwingMenuItemPeer peer = (SwingMenuItemPeer) item.getPeer(); + menu.add(peer.menuItem); + } + } + + /** + * Adds a menu item to this menu. + * + * @param item the menu item to add + */ + public void addItem(MenuItem item) + { + SwingMenuItemPeer menuItemPeer = (SwingMenuItemPeer) item.getPeer(); + menu.add(menuItemPeer.menuItem); + } + + /** + * Adds a separator to the menu. + */ + public void addSeparator() + { + menu.addSeparator(); + } + + /** + * Removes a menu item from the menu. + * + * @param index the index of the menu item to remove + */ + public void delItem(int index) + { + menu.remove(index); + } + + /** + * Disables the menu. + */ + public void disable() + { + menu.setEnabled(false); + } + + /** + * Enables the menu. + */ + public void enable() + { + menu.setEnabled(true); + } + + /** + * Sets the enabled state of the menu to <code>enabled</code>. + * + * @param enabled if the menu should be enabled or not + */ + public void setEnabled(boolean enabled) + { + menu.setEnabled(enabled); + } + + /** + * Sets the label of the menu. + * + * @param text the label to set + */ + public void setLabel(String text) + { + menu.setText(text); + } + + /** + * Releases any reference to the AWT and Swing menu instances. + */ + public void dispose() + { + menu = null; + awtMenu = null; + } + + /** + * Sets the font for the menu. + * + * @param font the font to set + */ + public void setFont(Font font) + { + menu.setFont(font); + } + + /** + * Handles mouse events by forwarding them to the Swing menu. + * + * @param ev the mouse event + */ + public void handleMouseEvent(MouseEvent ev) + { + menu.handleMouseEvent(ev); + } + + /** + * Handles mouse motion events by forwarding them to the Swing menu. + * + * @param ev the mouse event + */ + public void handleMouseMotionEvent(MouseEvent ev) + { + menu.handleMouseMotionEvent(ev); + } + + /** + * Returns the X coordinate of the upper left corner of the menu. This is + * used internally by the SwingMenuBarPeer. + * + * @return the X coordinate of the upper left corner of the menu + */ + int getX() + { + return menu.getX(); + } + + /** + * Returns the width of the menu. This is used internally by the + * SwingMenuBarPeer. + * + * @return the X coordinate of the upper left corner of the menu + */ + int getWidth() + { + return menu.getWidth(); + } + + /** + * Returns the Y coordinate of the upper left corner of the menu. This is + * used internally by the SwingMenuBarPeer. + * + * @return the X coordinate of the upper left corner of the menu + */ + public int getY() + { + return menu.getY(); + } +} |