jdk/src/solaris/classes/sun/awt/X11/XPopupMenuPeer.java
author yan
Mon, 06 Oct 2008 16:45:00 +0400
changeset 1966 12a51fb0db0d
parent 116 9c43d9eb1029
child 3938 ef327bd847c0
permissions -rw-r--r--
5100701: Toolkit.getLockingKeyState() does not work on XToolkit, but works on Motif Summary: Does not work on Motif but works on XToolkit now; implemented using XQueryPointer. Reviewed-by: anthony
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/*
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 * Copyright 2002-2008 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Sun designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Sun in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 */
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package sun.awt.X11;
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import java.awt.*;
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import java.awt.peer.*;
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import java.awt.event.*;
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import java.lang.reflect.Field;
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import java.lang.reflect.Method;
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import java.lang.reflect.InvocationTargetException;
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import java.util.Vector;
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import java.util.logging.*;
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import sun.awt.SunToolkit;
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public class XPopupMenuPeer extends XMenuWindow implements PopupMenuPeer {
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    /************************************************
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     *
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     * Data members
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     *
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     ************************************************/
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    private static Logger log = Logger.getLogger("sun.awt.X11.XBaseMenuWindow");
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    /*
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     * Primary members
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     */
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    private XComponentPeer componentPeer;
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    private PopupMenu popupMenuTarget;
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    /*
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     * If mouse button is clicked on item showing submenu
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     * we have to hide its submenu.
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     * This member saves the submenu under cursor
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     * Only if it's showing
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     */
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    private XMenuPeer showingMousePressedSubmenu = null;
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    /*
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     * Painting constants
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     */
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    private final static int CAPTION_MARGIN_TOP = 4;
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    private final static int CAPTION_SEPARATOR_HEIGHT = 6;
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    /*
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     * Menu's fields & methods
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     */
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    //Fix for 6184485: Popup menu is not disabled on XToolkit even when calling setEnabled (false)
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    private final static Field f_enabled;
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    //Fix for 6267144: PIT: Popup menu label is not shown, XToolkit
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    private final static Field f_label;
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    private final static Method m_getFont;
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    private final static Field f_items;
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    static {
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        f_enabled = SunToolkit.getField(MenuItem.class, "enabled");
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        f_label = SunToolkit.getField(MenuItem.class, "label");
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        f_items = SunToolkit.getField(Menu.class, "items");
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        m_getFont = SunToolkit.getMethod(MenuComponent.class, "getFont_NoClientCode", null);
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    }
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    /************************************************
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     *
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     * Construction
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     *
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     ************************************************/
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    XPopupMenuPeer(PopupMenu target) {
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        super(null);
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        this.popupMenuTarget = target;
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    }
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    /************************************************
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     *
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     * Implementaion of interface methods
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     *
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     ************************************************/
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    /*
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     * From MenuComponentPeer
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     */
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    public void setFont(Font f) {
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        resetMapping();
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        setItemsFont(f);
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        postPaintEvent();
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    }
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    /*
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     * From MenuItemPeer
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     */
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    public void setLabel(String label) {
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        resetMapping();
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        postPaintEvent();
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    }
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    public void setEnabled(boolean enabled) {
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        postPaintEvent();
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    }
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    /**
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     * DEPRECATED:  Replaced by setEnabled(boolean).
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     * @see java.awt.peer.MenuItemPeer
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     */
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    public void enable() {
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        setEnabled( true );
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    }
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    /**
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     * DEPRECATED:  Replaced by setEnabled(boolean).
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     * @see java.awt.peer.MenuItemPeer
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     */
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    public void disable() {
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        setEnabled( false );
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    }
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    /*
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     * From MenuPeer
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     */
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    /**
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     * addSeparator routines are not used
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     * in peers. Shared code invokes addItem("-")
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     * for adding separators
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     */
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    public void addSeparator() {
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        if (log.isLoggable(Level.FINER)) log.finer("addSeparator is not implemented");
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    }
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    /*
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     * From PopupMenuPeer
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     */
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    public void show(Event e) {
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        target = (Component)e.target;
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        // Get menus from the target.
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        Vector targetItemVector = getMenuTargetItems();
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        if (targetItemVector != null) {
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            reloadItems(targetItemVector);
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            //Fix for 6287092: JCK15a: api/java_awt/interactive/event/EventTests.html#EventTest0015 fails, mustang
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            Point tl = target.getLocationOnScreen();
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            Point pt = new Point(tl.x + e.x, tl.y + e.y);
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            //Fixed 6266513: Incorrect key handling in XAWT popup menu
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            //No item should be selected when showing popup menu
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            if (!ensureCreated()) {
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                return;
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            }
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            Dimension dim = getDesiredSize();
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            //Fix for 6267162: PIT: Popup Menu gets hidden below the screen when opened
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            //near the periphery of the screen, XToolkit
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            Rectangle bounds = getWindowBounds(pt, dim);
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            reshape(bounds);
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            xSetVisible(true);
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            toFront();
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            selectItem(null, false);
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            grabInput();
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        }
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    }
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    /************************************************
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     *
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     * Access to target's fields
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     *
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     ************************************************/
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    //Fix for 6267144: PIT: Popup menu label is not shown, XToolkit
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    Font getTargetFont() {
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        if (popupMenuTarget == null) {
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            return XWindow.getDefaultFont();
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        }
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        try {
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            return (Font)m_getFont.invoke(popupMenuTarget, new Object[0]);
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        } catch (IllegalAccessException e) {
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            e.printStackTrace();
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        } catch (InvocationTargetException e) {
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            e.printStackTrace();
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        }
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        return XWindow.getDefaultFont();
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    }
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    String getTargetLabel() {
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        if (target == null) {
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            return "";
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        }
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        try {
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            String label = (String)f_label.get(popupMenuTarget);
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            return (label == null) ? "" : label;
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        } catch (IllegalAccessException e) {
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            e.printStackTrace();
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        }
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        return "";
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    }
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    //Fix for 6184485: Popup menu is not disabled on XToolkit even when calling setEnabled (false)
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    boolean isTargetEnabled() {
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   217
        if (popupMenuTarget == null) {
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            return false;
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        }
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        try {
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   221
            return f_enabled.getBoolean(popupMenuTarget);
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        } catch (IllegalAccessException e) {
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   223
            e.printStackTrace();
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   224
        }
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        return false;
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   226
    }
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   227
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    Vector getMenuTargetItems() {
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   229
        try {
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   230
            return (Vector)f_items.get(popupMenuTarget);
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   231
        } catch (IllegalAccessException iae) {
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            iae.printStackTrace();
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            return null;
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   234
        }
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   235
    }
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   236
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    /************************************************
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     *
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     * Utility functions
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     *
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     ************************************************/
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   242
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   243
    //Fix for 6267162: PIT: Popup Menu gets hidden below the screen when opened
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   244
    //near the periphery of the screen, XToolkit
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   245
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   246
    /**
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     * Calculates placement of popup menu window
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   248
     * given origin in global coordinates and
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   249
     * size of menu window. Returns suggested
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   250
     * rectangle for menu window in global coordinates
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   251
     * @param origin the origin point specified in show()
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   252
     * function converted to global coordinates
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   253
     * @param windowSize the desired size of menu's window
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   254
     */
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   255
    protected Rectangle getWindowBounds(Point origin, Dimension windowSize) {
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   256
        Rectangle globalBounds = new Rectangle(origin.x, origin.y, 0, 0);
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   257
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
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   258
        Rectangle res;
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   259
        res = fitWindowRight(globalBounds, windowSize, screenSize);
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   260
        if (res != null) {
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   261
            return res;
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   262
        }
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   263
        res = fitWindowLeft(globalBounds, windowSize, screenSize);
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   264
        if (res != null) {
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   265
            return res;
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   266
        }
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   267
        res = fitWindowBelow(globalBounds, windowSize, screenSize);
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   268
        if (res != null) {
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   269
            return res;
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   270
        }
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   271
        res = fitWindowAbove(globalBounds, windowSize, screenSize);
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   272
        if (res != null) {
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   273
            return res;
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   274
        }
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   275
        return fitWindowToScreen(windowSize, screenSize);
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   276
   }
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   277
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parents:
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   278
    /************************************************
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   279
     *
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   280
     * Overriden XMenuWindow caption-painting functions
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parents:
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   281
     * Necessary to fix 6267144: PIT: Popup menu label is not shown, XToolkit
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   282
     *
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   283
     ************************************************/
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parents:
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   284
    /**
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   285
     * Returns height of menu window's caption.
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parents:
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   286
     * Can be overriden for popup menus and tear-off menus
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   287
     */
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   288
    protected Dimension getCaptionSize() {
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   289
        String s = getTargetLabel();
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   290
        if (s.equals("")) {
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parents:
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   291
            return null;
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   292
        }
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   293
        Graphics g = getGraphics();
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parents:
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   294
        if (g == null) {
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   295
            return null;
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parents:
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   296
        }
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parents:
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   297
        try {
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   298
            g.setFont(getTargetFont());
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parents:
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   299
            FontMetrics fm = g.getFontMetrics();
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   300
            String str = getTargetLabel();
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   301
            int width = fm.stringWidth(str);
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   302
            int height = CAPTION_MARGIN_TOP + fm.getHeight() + CAPTION_SEPARATOR_HEIGHT;
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   303
            Dimension textDimension = new Dimension(width, height);
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   304
            return textDimension;
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parents:
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   305
        } finally {
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   306
            g.dispose();
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parents:
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   307
        }
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   308
    }
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parents:
diff changeset
   309
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parents:
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   310
    /**
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   311
     * Paints menu window's caption.
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parents:
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   312
     * Can be overriden for popup menus and tear-off menus.
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parents:
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   313
     * Default implementation does nothing
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parents:
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   314
     */
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   315
    protected void paintCaption(Graphics g, Rectangle rect) {
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parents:
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   316
        String s = getTargetLabel();
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parents:
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   317
        if (s.equals("")) {
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parents:
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   318
            return;
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parents:
diff changeset
   319
        }
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parents:
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   320
        g.setFont(getTargetFont());
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parents:
diff changeset
   321
        FontMetrics fm = g.getFontMetrics();
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parents:
diff changeset
   322
        String str = getTargetLabel();
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parents:
diff changeset
   323
        int width = fm.stringWidth(str);
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parents:
diff changeset
   324
        int textx = rect.x + (rect.width - width) / 2;
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parents:
diff changeset
   325
        int texty = rect.y + CAPTION_MARGIN_TOP + fm.getAscent();
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parents:
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   326
        int sepy = rect.y + rect.height - CAPTION_SEPARATOR_HEIGHT / 2;
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parents:
diff changeset
   327
        g.setColor(isTargetEnabled() ? getForegroundColor() : getDisabledColor());
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parents:
diff changeset
   328
        g.drawString(s, textx, texty);
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parents:
diff changeset
   329
        draw3DRect(g, rect.x, sepy,  rect.width, 2, false);
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parents:
diff changeset
   330
    }
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parents:
diff changeset
   331
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parents:
diff changeset
   332
    /************************************************
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parents:
diff changeset
   333
     *
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parents:
diff changeset
   334
     * Overriden XBaseMenuWindow functions
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parents:
diff changeset
   335
     *
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parents:
diff changeset
   336
     ************************************************/
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parents:
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   337
    protected void doDispose() {
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parents:
diff changeset
   338
        super.doDispose();
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parents:
diff changeset
   339
        XToolkit.targetDisposedPeer(popupMenuTarget, this);
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parents:
diff changeset
   340
    }
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parents:
diff changeset
   341
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parents:
diff changeset
   342
    protected void handleEvent(AWTEvent event) {
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parents:
diff changeset
   343
        switch(event.getID()) {
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parents:
diff changeset
   344
        case MouseEvent.MOUSE_PRESSED:
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parents:
diff changeset
   345
        case MouseEvent.MOUSE_RELEASED:
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parents:
diff changeset
   346
        case MouseEvent.MOUSE_CLICKED:
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parents:
diff changeset
   347
        case MouseEvent.MOUSE_MOVED:
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parents:
diff changeset
   348
        case MouseEvent.MOUSE_ENTERED:
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parents:
diff changeset
   349
        case MouseEvent.MOUSE_EXITED:
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parents:
diff changeset
   350
        case MouseEvent.MOUSE_DRAGGED:
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duke
parents:
diff changeset
   351
            doHandleJavaMouseEvent((MouseEvent)event);
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parents:
diff changeset
   352
            break;
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parents:
diff changeset
   353
        case KeyEvent.KEY_PRESSED:
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parents:
diff changeset
   354
        case KeyEvent.KEY_RELEASED:
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duke
parents:
diff changeset
   355
            doHandleJavaKeyEvent((KeyEvent)event);
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parents:
diff changeset
   356
            break;
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parents:
diff changeset
   357
        default:
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duke
parents:
diff changeset
   358
            super.handleEvent(event);
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duke
parents:
diff changeset
   359
            break;
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duke
parents:
diff changeset
   360
        }
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duke
parents:
diff changeset
   361
    }
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parents:
diff changeset
   362
90ce3da70b43 Initial load
duke
parents:
diff changeset
   363
    /************************************************
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parents:
diff changeset
   364
     *
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duke
parents:
diff changeset
   365
     * Overriden XWindow general-purpose functions
90ce3da70b43 Initial load
duke
parents:
diff changeset
   366
     *
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parents:
diff changeset
   367
     ************************************************/
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parents:
diff changeset
   368
    void ungrabInputImpl() {
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duke
parents:
diff changeset
   369
        hide();
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parents:
diff changeset
   370
    }
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parents:
diff changeset
   371
90ce3da70b43 Initial load
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parents:
diff changeset
   372
    /************************************************
90ce3da70b43 Initial load
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parents:
diff changeset
   373
     *
90ce3da70b43 Initial load
duke
parents:
diff changeset
   374
     * Overriden XWindow keyboard processing
90ce3da70b43 Initial load
duke
parents:
diff changeset
   375
     *
90ce3da70b43 Initial load
duke
parents:
diff changeset
   376
     ************************************************/
90ce3da70b43 Initial load
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parents:
diff changeset
   377
90ce3da70b43 Initial load
duke
parents:
diff changeset
   378
    /*
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duke
parents:
diff changeset
   379
     * In previous version keys were handled in handleKeyPress.
90ce3da70b43 Initial load
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parents:
diff changeset
   380
     * Now we override this function do disable F10 explicit
90ce3da70b43 Initial load
duke
parents:
diff changeset
   381
     * processing. All processing is done using KeyEvent.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   382
     */
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duke
parents:
diff changeset
   383
    public void handleKeyPress(XEvent xev) {
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duke
parents:
diff changeset
   384
        XKeyEvent xkey = xev.get_xkey();
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duke
parents:
diff changeset
   385
        if (log.isLoggable(Level.FINE)) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   386
            log.fine(xkey.toString());
90ce3da70b43 Initial load
duke
parents:
diff changeset
   387
        }
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duke
parents:
diff changeset
   388
        if (isEventDisabled(xev)) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   389
            return;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   390
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   391
        final Component currentSource = (Component)getEventSource();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   392
        handleKeyPress(xkey);
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duke
parents:
diff changeset
   393
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   394
90ce3da70b43 Initial load
duke
parents:
diff changeset
   395
}