aboutsummaryrefslogtreecommitdiff
path: root/libjava/java/awt/CheckboxMenuItem.java
diff options
context:
space:
mode:
authorTom Tromey <tromey@redhat.com>2002-01-22 22:03:04 +0000
committerTom Tromey <tromey@gcc.gnu.org>2002-01-22 22:03:04 +0000
commitbda145054363dfa5eef640d526542bc6130a56d0 (patch)
tree317e29ad09d5c7d11f21d6999c1e4c2d70eb6650 /libjava/java/awt/CheckboxMenuItem.java
parente3b0efd1eeea460b091c1b9b9038605a672b1cb9 (diff)
downloadgcc-bda145054363dfa5eef640d526542bc6130a56d0.zip
gcc-bda145054363dfa5eef640d526542bc6130a56d0.tar.gz
gcc-bda145054363dfa5eef640d526542bc6130a56d0.tar.bz2
ButtonPeer.java: Replace with Classpath version.
* java/awt/peer/ButtonPeer.java: Replace with Classpath version. * java/awt/peer/CanvasPeer.java: Replace with Classpath version. * java/awt/peer/CheckboxMenuItemPeer.java: Replace with Classpath version. * java/awt/peer/CheckboxPeer.java: Replace with Classpath version. * java/awt/peer/ChoicePeer.java: Replace with Classpath version. * java/awt/peer/ComponentPeer.java: Replace with Classpath version. * java/awt/peer/ContainerPeer.java: Replace with Classpath version. * java/awt/peer/DialogPeer.java: Replace with Classpath version. * java/awt/peer/FileDialogPeer.java: Replace with Classpath version. * java/awt/peer/FontPeer.java: Replace with Classpath version. * java/awt/peer/FramePeer.java: Replace with Classpath version. * java/awt/peer/LabelPeer.java: Replace with Classpath version. * java/awt/peer/LightweightPeer.java: Replace with Classpath version. * java/awt/peer/ListPeer.java: Replace with Classpath version. * java/awt/peer/MenuBarPeer.java: Replace with Classpath version. * java/awt/peer/MenuComponentPeer.java: Replace with Classpath version. * java/awt/peer/MenuItemPeer.java: Replace with Classpath version. * java/awt/peer/MenuPeer.java: Replace with Classpath version. * java/awt/peer/PanelPeer.java: Replace with Classpath version. * java/awt/peer/PopupMenuPeer.java: Replace with Classpath version. * java/awt/peer/ScrollPanePeer.java: Replace with Classpath version. * java/awt/peer/ScrollbarPeer.java: Replace with Classpath version. * java/awt/peer/TextAreaPeer.java: Replace with Classpath version. * java/awt/peer/TextComponentPeer.java: Replace with Classpath version. * java/awt/peer/TextFieldPeer.java: Replace with Classpath version. * java/awt/peer/WindowPeer.java: Replace with Classpath version. * gnu/awt/xlib/XPanelPeer.java (insets): New method. * gnu/awt/xlib/XCanvasPeer.java (show, hide): New methods. (minimumSize, preferredSize, reshape): Likewise. * gnu/awt/xlib/XFramePeer.java (insets, enable, disable, getColorModel): New methods. * java/awt/PopupMenu.java: Merged with Classpath. * java/awt/MenuBar.java: Merged with Classpath. * java/awt/SystemColor.java: Replace with Classpath version. * java/awt/Panel.java: Merged with Classpath. * java/awt/PaintContext.java: Updated copyright. * java/awt/MenuShortcut.java: Merged with Classpath. * java/awt/MenuContainer.java: Merged with Classpath. * java/awt/Menu.java: Merged with Classpath. * java/awt/MediaEntry.java: New file from Classpath. * java/awt/MediaTracker.java: New file from Classpath. * java/awt/List.java: Merged with Classpath version. * java/awt/Insets.java: Merged with Classpath version. * java/awt/ImageMediaEntry.java: New file from Classpath. * java/awt/Image.java: Replaced with Classpath version. * java/awt/FontMetrics.java: Merged with Classpath version. * java/awt/Cursor.java (getDefaultCursor): Use DEFAULT_CURSOR constant. * java/awt/Font.java: Merged with Classpath version. * java/awt/Dialog.java: Merged with Classpath version. * java/awt/Color.java: Merged with Classpath version. * java/awt/Choice.java: Merged with Classpath version. * java/awt/CheckboxMenuItem.java: Merged with Classpath version. * java/awt/Adjustable.java: Replace with Classpath version. * java/awt/MenuItem.java (paramString): Don't include class name or brackets. Call superclass paramString. * java/awt/MenuComponent.java (toString): Call paramString. (paramString): Compute string; don't call toString. * java/awt/Label.java (paramString): Don't include class name or brackets. Call superclass paramString. * java/awt/Checkbox.java (paramString): Don't include class name or brackets. Call superclass paramString. * java/awt/Button.java (paramString): Don't include class name or brackets. Call superclass paramString. * java/awt/MenuComponent.java (getTreeLock): Now protected. From-SVN: r49099
Diffstat (limited to 'libjava/java/awt/CheckboxMenuItem.java')
-rw-r--r--libjava/java/awt/CheckboxMenuItem.java379
1 files changed, 255 insertions, 124 deletions
diff --git a/libjava/java/awt/CheckboxMenuItem.java b/libjava/java/awt/CheckboxMenuItem.java
index 007d3dc..bdede7b 100644
--- a/libjava/java/awt/CheckboxMenuItem.java
+++ b/libjava/java/awt/CheckboxMenuItem.java
@@ -1,134 +1,265 @@
-/* Copyright (C) 2000, 2001 Free Software Foundation
+/* CheckboxMenuItem.java -- A menu option with a checkbox on it.
+ Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
- This file is part of libgcj.
+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., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+As a special exception, if you link this library with other files to
+produce an executable, this library does not by itself cause the
+resulting executable to be covered by the GNU General Public License.
+This exception does not however invalidate any other reasons why the
+executable file might be covered by the GNU General Public License. */
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
package java.awt;
+
import java.awt.peer.CheckboxMenuItemPeer;
-import java.awt.event.ItemListener;
+import java.awt.peer.MenuItemPeer;
+import java.awt.peer.MenuComponentPeer;
import java.awt.event.ItemEvent;
+import java.awt.event.ItemListener;
+
+/**
+ * This class implements a menu item that has a checkbox on it indicating
+ * the selected state of some option.
+ *
+ * @author Aaron M. Renn (arenn@urbanophile.com)
+ * @author Tom Tromey <tromey@redhat.com>
+ */
+public class CheckboxMenuItem extends MenuItem implements ItemSelectable,
+ java.io.Serializable
+{
-/** This implements a menu item which keeps track of a boolean state.
- * @author Tom Tromey <tromey@redhat.com>
- * @date December 25, 2000
+/*
+ * Static Variables
*/
-public class CheckboxMenuItem extends MenuItem implements ItemSelectable
+
+// Serialization constant
+private static final long serialVersionUID = 6190621106981774043L;
+
+/*
+ * Instance Variables
+ */
+
+/**
+ * @serial The state of the checkbox, with <code>true</code> being on and
+ * <code>false</code> being off.
+ */
+private boolean state;
+
+// List of registered ItemListeners
+private transient ItemListener item_listeners;
+
+/*************************************************************************/
+
+/*
+ * Constructors
+ */
+
+/**
+ * Initializes a new instance of <code>CheckboxMenuItem</code> with no
+ * label and an initial state of off.
+ */
+public
+CheckboxMenuItem()
{
- /** Create a new CheckboxMenuItem.
- * @param label The checkbox label. A null value is the same as "";
- * null is the default.
- * @param state The initial check state; defaults to false.
- */
- public CheckboxMenuItem ()
- {
- this (null, false);
- }
-
- public CheckboxMenuItem (String label)
- {
- this (label, false);
- }
-
- public CheckboxMenuItem (String label, boolean state)
- {
- this.label = label;
- this.state = state;
- }
-
- /** Add a listener for item events.
- * @param listener The listener to add.
- */
- public synchronized void addItemListener (ItemListener listener)
- {
- listeners = AWTEventMulticaster.add (listeners, listener);
- }
-
- /** This creates the component's peer. */
- public void addNotify ()
- {
- if (peer != null)
- {
- // This choice of toolkit seems unsatisfying, but I'm not sure
- // what else to do.
- peer = Toolkit.getDefaultToolkit ().createCheckboxMenuItem (this);
- }
- super.addNotify ();
- }
-
- /** Returns this checkbox's label if this checkbox is selected. */
- public Object[] getSelectedObjects ()
- {
- Object[] r;
- if (state)
- {
- r = new Object[1];
- r[0] = label;
- }
- else
- r = new Object[0];
- return r;
- }
-
- /** Returns the current state of this checkbox. */
- public boolean getState ()
- {
- return state;
- }
-
- /** Generates a String representation of this Checkbox's state. */
- public String paramString ()
- {
- return ("[" + getClass ().getName ()
- + "state=" + state + ","
- + "label=" + label + "]");
- }
-
- /** Process an event for this Checkbox.
- * @param event The event the process.
- */
- protected void processEvent (AWTEvent event)
- {
- if (event instanceof ItemEvent)
- processItemEvent ((ItemEvent) event);
- else
- super.processEvent (event);
- }
-
- /** Process an item event for this Checkbox.
- * @param event The ItemEvent to process
- */
- protected void processItemEvent (ItemEvent event)
- {
- if (listeners != null)
- listeners.itemStateChanged (event);
- }
-
- /** Remove an item listener.
- * @param listener Item listener to remove.
- */
- public synchronized void removeItemListener (ItemListener listener)
- {
- listeners = AWTEventMulticaster.remove (listeners, listener);
- }
-
- /** Set the checkbox's state.
- * @param state The new state.
- */
- public void setState (boolean state)
- {
- this.state = state;
- if (peer != null)
- {
- CheckboxMenuItemPeer cp = (CheckboxMenuItemPeer) peer;
- cp.setState (state);
- }
- }
-
- // Private state.
- String label;
- boolean state;
- ItemListener listeners;
+ this("", false);
}
+
+/*************************************************************************/
+
+/**
+ * Initializes a new instance of <code>CheckboxMenuItem</code> with the
+ * specified label and an initial state of off.
+ *
+ * @param label The label of the menu item.
+ */
+public
+CheckboxMenuItem(String label)
+{
+ this(label, false);
+}
+
+/*************************************************************************/
+
+/**
+ * Initializes a new instance of <code>CheckboxMenuItem</code> with the
+ * specified label and initial state.
+ *
+ * @param label The label of the menu item.
+ * @param state The initial state of the menu item, where <code>true</code>
+ * is on, and <code>false</code> is off.
+ */
+public
+CheckboxMenuItem(String label, boolean state)
+{
+ super(label);
+ this.state = state;
+}
+
+/*************************************************************************/
+
+/*
+ * Instance Methods
+ */
+
+/**
+ * Returns the state of this menu item.
+ *
+ * @return The state of this menu item.
+ */
+public boolean
+getState()
+{
+ return(state);
+}
+
+/*************************************************************************/
+
+/**
+ * Sets the state of this menu item.
+ *
+ * @param state The initial state of the menu item, where <code>true</code>
+ * is on, and <code>false</code> is off.
+ */
+public synchronized void
+setState(boolean state)
+{
+ this.state = state;
+ if (peer != null)
+ {
+ CheckboxMenuItemPeer cp = (CheckboxMenuItemPeer) peer;
+ cp.setState (state);
+ }
+}
+
+/*************************************************************************/
+
+/**
+ * Returns an array of length 1 with the menu item label for this object
+ * if the state is on. Otherwise <code>null</code> is returned.
+ *
+ * @param An array with this menu item's label if it has a state of on,
+ * or <code>null</code> otherwise.
+ */
+public Object[]
+getSelectedObjects()
+{
+ if (state == false)
+ return(null);
+
+ Object[] obj = new Object[1];
+ obj[0] = getLabel();
+
+ return(obj);
+}
+
+/*************************************************************************/
+
+/**
+ * Create's this object's native peer
+ */
+public synchronized void
+addNotify()
+{
+ if (peer != null)
+ {
+ // This choice of toolkit seems unsatisfying, but I'm not sure
+ // what else to do.
+ peer = getToolkit().createCheckboxMenuItem(this);
+ }
+ super.addNotify ();
+}
+
+/*************************************************************************/
+
+/**
+ * Adds the specified listener to the list of registered item listeners
+ * for this object.
+ *
+ * @param listener The listener to add.
+ */
+public synchronized void
+addItemListener(ItemListener listener)
+{
+ item_listeners = AWTEventMulticaster.add(item_listeners, listener);
+
+ enableEvents(AWTEvent.ITEM_EVENT_MASK);
+}
+
+/*************************************************************************/
+
+/**
+ * Removes the specified listener from the list of registered item
+ * listeners for this object.
+ *
+ * @param listener The listener to remove.
+ */
+public synchronized void
+removeItemListener(ItemListener listener)
+{
+ item_listeners = AWTEventMulticaster.remove(item_listeners, listener);
+}
+
+/*************************************************************************/
+
+/**
+ * Processes the specified event by calling <code>processItemEvent()</code>
+ * if it is an instance of <code>ItemEvent</code> or calling the superclass
+ * method otherwise.
+ *
+ * @param event The event to process.
+ */
+protected void
+processEvent(AWTEvent event)
+{
+ if (event instanceof ItemEvent)
+ processItemEvent((ItemEvent)event);
+ else
+ super.processEvent(event);
+}
+
+/*************************************************************************/
+
+/**
+ * Processes the specified event by dispatching it to any registered listeners.
+ *
+ * @param event The event to process.
+ */
+protected void
+processItemEvent(ItemEvent event)
+{
+ if (item_listeners != null)
+ item_listeners.itemStateChanged(event);
+}
+
+/*************************************************************************/
+
+/**
+ * Returns a debugging string for this object.
+ *
+ * @return A debugging string for this object.
+ */
+public String
+paramString()
+{
+ return ("label=" + getLabel() + ",state=" + state
+ + "," + super.paramString());
+}
+
+} // class CheckboxMenuItem
+