jdk/src/solaris/classes/sun/awt/X11/XMenuItemPeer.java
author yan
Mon, 06 Oct 2008 16:45:00 +0400
changeset 1966 12a51fb0db0d
parent 116 9c43d9eb1029
child 3938 ef327bd847c0
child 4191 ca8d3ef845c8
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.util.logging.*;
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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 sun.awt.SunToolkit;
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public class XMenuItemPeer implements MenuItemPeer {
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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.XMenuItemPeer");
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    /*
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     * Primary members
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     */
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    /**
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     * Window that this item belongs to.
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     */
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    private XBaseMenuWindow container;
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    /**
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     * Target MenuItem. Note that 'target' member
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     * in XWindow is required for dispatching events.
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     * This member is only used for accessing its fields
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     * and firing ActionEvent & ItemEvent
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     */
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    private MenuItem target;
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    /*
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     * Mapping to window
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     */
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    /**
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     * Rectange occupied by menu item in container's
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     * coordinates. Filled by map(...) function from
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     * XBaseMenuWindow.map()
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     */
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    private Rectangle bounds;
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    /**
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     * Point in container's coordinate system used as
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     * origin by drawText.
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     */
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    private Point textOrigin;
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    /*
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     * Size constants
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     */
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    private final static int SEPARATOR_WIDTH = 20;
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    private final static int SEPARATOR_HEIGHT = 5;
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    /*
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     * MenuItem's fields & methods
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     */
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    private final static Field f_enabled;
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    private final static Field f_label;
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    private final static Field f_shortcut;
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    private final static Method m_getFont;
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    private final static Method m_isItemEnabled;
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    private final static Method m_getActionCommand;
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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_shortcut = SunToolkit.getField(MenuItem.class, "shortcut");
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        m_getFont = SunToolkit.getMethod(MenuComponent.class, "getFont_NoClientCode", null);
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        m_getActionCommand = SunToolkit.getMethod(MenuItem.class, "getActionCommandImpl", null);
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        m_isItemEnabled = SunToolkit.getMethod(MenuItem.class, "isItemEnabled", null);
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    }
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    /************************************************
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     *
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     * Text Metrics
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     *
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     ************************************************/
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    /**
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     * Text metrics are filled in calcTextMetrics function
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     * and reset in resetTextMetrics function. Text metrics
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     * contain calculated dimensions of various components of
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     * menu item.
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     */
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    private TextMetrics textMetrics;
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    static class TextMetrics implements Cloneable {
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        /*
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         * Calculated text size members
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         */
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        private Dimension textDimension;
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        private int shortcutWidth;
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        private int textBaseline;
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        TextMetrics(Dimension textDimension, int shortcutWidth, int textBaseline) {
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            this.textDimension = textDimension;
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            this.shortcutWidth = shortcutWidth;
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            this.textBaseline = textBaseline;
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        }
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        public Object clone() {
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            try {
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                return super.clone();
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            } catch (CloneNotSupportedException ex) {
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                throw new InternalError();
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            }
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        }
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        Dimension getTextDimension() {
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            return this.textDimension;
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        }
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        int getShortcutWidth() {
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            return this.shortcutWidth;
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        }
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        int getTextBaseline() {
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            return this.textBaseline;
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        }
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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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    XMenuItemPeer(MenuItem target) {
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        this.target = 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 dispose() {
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        //Empty function
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    }
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    public void setFont(Font font) {
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        resetTextMetrics();
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        repaintIfShowing();
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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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        resetTextMetrics();
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        repaintIfShowing();
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    }
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    public void setEnabled(boolean enabled) {
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        repaintIfShowing();
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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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     *
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     * Access to target's fields
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     *
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     ************************************************/
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    MenuItem getTarget() {
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        return this.target;
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    }
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    Font getTargetFont() {
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        if (target == null) {
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            return XWindow.getDefaultFont();
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        }
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   223
        try {
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   224
            return (Font)m_getFont.invoke(target, new Object[0]);
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diff changeset
   225
        } catch (IllegalAccessException e) {
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   226
            e.printStackTrace();
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   227
        } catch (InvocationTargetException e) {
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   228
            e.printStackTrace();
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   229
        }
116
9c43d9eb1029 6645856: static field XWindowPeer.defaultFont hides XWindow.defaultFont
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parents: 2
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   230
        return XWindow.getDefaultFont();
2
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   231
    }
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   232
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   233
    String getTargetLabel() {
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   234
        if (target == null) {
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   235
            return "";
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   236
        }
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   237
        try {
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   238
            String label = (String)f_label.get(target);
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   239
            return (label == null) ? "" : label;
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   240
        } catch (IllegalAccessException e) {
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   241
            e.printStackTrace();
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   242
        }
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   243
        return "";
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   244
    }
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   245
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   246
    boolean isTargetEnabled() {
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   247
        if (target == null) {
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   248
            return false;
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   249
        }
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   250
        try {
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   251
            return f_enabled.getBoolean(target);
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   252
        } catch (IllegalAccessException e) {
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   253
            e.printStackTrace();
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   254
        }
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   255
        return false;
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   256
    }
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   257
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   258
    /**
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   259
     * Returns true if item and all its parents are enabled
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   260
     * This function is used to fix
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   261
     * 6184485: Popup menu is not disabled on XToolkit even when calling setEnabled (false)
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   262
     */
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   263
    boolean isTargetItemEnabled() {
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   264
        if (target == null) {
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   265
            return false;
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   266
        }
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   267
        try {
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   268
            return ((Boolean)m_isItemEnabled.invoke(target, new Object[0])).booleanValue();
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   269
        } catch (IllegalAccessException e) {
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   270
            e.printStackTrace();
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diff changeset
   271
        } catch (InvocationTargetException e) {
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   272
            e.printStackTrace();
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   273
        }
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   274
        return false;
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   275
    }
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   276
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   277
    String getTargetActionCommand() {
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   278
        if (target == null) {
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   279
            return "";
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   280
        }
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   281
        try {
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   282
            return (String) m_getActionCommand.invoke(target,(Object[]) null);
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diff changeset
   283
        } catch (IllegalAccessException e) {
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   284
            e.printStackTrace();
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diff changeset
   285
        } catch (InvocationTargetException e) {
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   286
            e.printStackTrace();
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diff changeset
   287
        }
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   288
        return "";
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   289
    }
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   290
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   291
    MenuShortcut getTargetShortcut() {
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parents:
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   292
        if (target == null) {
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   293
            return null;
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diff changeset
   294
        }
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diff changeset
   295
        try {
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parents:
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   296
            return (MenuShortcut)f_shortcut.get(target);
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parents:
diff changeset
   297
        } catch (IllegalAccessException e) {
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   298
            e.printStackTrace();
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   299
        }
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   300
        return null;
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   301
    }
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   302
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   303
    String getShortcutText() {
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   304
        //Fix for 6180413: shortcuts should not be displayed for any of the menuitems in a popup menu
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parents:
diff changeset
   305
        if (container == null) {
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diff changeset
   306
            return null;
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parents:
diff changeset
   307
        }
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parents:
diff changeset
   308
        if (container.getRootMenuWindow() instanceof XPopupMenuPeer) {
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parents:
diff changeset
   309
            return null;
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diff changeset
   310
        }
90ce3da70b43 Initial load
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   311
        MenuShortcut sc = getTargetShortcut();
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   312
        //TODO:This can potentially call user code
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diff changeset
   313
        return (sc == null) ? null : sc.toString();
90ce3da70b43 Initial load
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parents:
diff changeset
   314
    }
90ce3da70b43 Initial load
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parents:
diff changeset
   315
90ce3da70b43 Initial load
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diff changeset
   316
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   317
    /************************************************
90ce3da70b43 Initial load
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   318
     *
90ce3da70b43 Initial load
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   319
     * Basic manipulations
90ce3da70b43 Initial load
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diff changeset
   320
     *
90ce3da70b43 Initial load
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parents:
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   321
     ************************************************/
90ce3da70b43 Initial load
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diff changeset
   322
90ce3da70b43 Initial load
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parents:
diff changeset
   323
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   324
     * This function is called when filling item vectors
90ce3da70b43 Initial load
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parents:
diff changeset
   325
     * in XMenuWindow & XMenuBar. We need it because peers
90ce3da70b43 Initial load
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parents:
diff changeset
   326
     * are created earlier than windows.
90ce3da70b43 Initial load
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parents:
diff changeset
   327
     * @param container the window that this item belongs to.
90ce3da70b43 Initial load
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parents:
diff changeset
   328
     */
90ce3da70b43 Initial load
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parents:
diff changeset
   329
    void setContainer(XBaseMenuWindow container) {
90ce3da70b43 Initial load
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parents:
diff changeset
   330
        synchronized(XBaseMenuWindow.getMenuTreeLock()) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   331
            this.container = container;
90ce3da70b43 Initial load
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parents:
diff changeset
   332
        }
90ce3da70b43 Initial load
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parents:
diff changeset
   333
    }
90ce3da70b43 Initial load
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parents:
diff changeset
   334
90ce3da70b43 Initial load
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parents:
diff changeset
   335
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   336
     * returns the window that this item belongs to
90ce3da70b43 Initial load
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parents:
diff changeset
   337
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   338
    XBaseMenuWindow getContainer() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   339
        return this.container;
90ce3da70b43 Initial load
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parents:
diff changeset
   340
    }
90ce3da70b43 Initial load
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parents:
diff changeset
   341
90ce3da70b43 Initial load
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parents:
diff changeset
   342
    /************************************************
90ce3da70b43 Initial load
duke
parents:
diff changeset
   343
     *
90ce3da70b43 Initial load
duke
parents:
diff changeset
   344
     * Overridable behaviour
90ce3da70b43 Initial load
duke
parents:
diff changeset
   345
     *
90ce3da70b43 Initial load
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parents:
diff changeset
   346
     ************************************************/
90ce3da70b43 Initial load
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parents:
diff changeset
   347
90ce3da70b43 Initial load
duke
parents:
diff changeset
   348
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   349
     * This function should be overriden simply to
90ce3da70b43 Initial load
duke
parents:
diff changeset
   350
     * return false in inherited classes.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   351
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   352
    boolean isSeparator() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   353
        boolean r = (getTargetLabel().equals("-"));
90ce3da70b43 Initial load
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parents:
diff changeset
   354
        return r;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   355
    }
90ce3da70b43 Initial load
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parents:
diff changeset
   356
90ce3da70b43 Initial load
duke
parents:
diff changeset
   357
    /************************************************
90ce3da70b43 Initial load
duke
parents:
diff changeset
   358
     *
90ce3da70b43 Initial load
duke
parents:
diff changeset
   359
     * Utility functions
90ce3da70b43 Initial load
duke
parents:
diff changeset
   360
     *
90ce3da70b43 Initial load
duke
parents:
diff changeset
   361
     ************************************************/
90ce3da70b43 Initial load
duke
parents:
diff changeset
   362
90ce3da70b43 Initial load
duke
parents:
diff changeset
   363
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   364
     * Returns true if container exists and is showing
90ce3da70b43 Initial load
duke
parents:
diff changeset
   365
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   366
    boolean isContainerShowing() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   367
        if (container == null) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   368
            return false;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   369
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   370
        return container.isShowing();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   371
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   372
90ce3da70b43 Initial load
duke
parents:
diff changeset
   373
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   374
     * Repaints item if it is showing
90ce3da70b43 Initial load
duke
parents:
diff changeset
   375
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   376
    void repaintIfShowing() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   377
        if (isContainerShowing()) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   378
            container.postPaintEvent();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   379
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   380
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   381
90ce3da70b43 Initial load
duke
parents:
diff changeset
   382
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   383
     * This function is invoked when the user clicks
90ce3da70b43 Initial load
duke
parents:
diff changeset
   384
     * on menu item.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   385
     * @param when the timestamp of action event
90ce3da70b43 Initial load
duke
parents:
diff changeset
   386
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   387
    void action(long when) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   388
        if (!isSeparator() && isTargetItemEnabled()) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   389
            XWindow.postEventStatic(new ActionEvent(target, ActionEvent.ACTION_PERFORMED,
90ce3da70b43 Initial load
duke
parents:
diff changeset
   390
                                                    getTargetActionCommand(), when,
90ce3da70b43 Initial load
duke
parents:
diff changeset
   391
                                                    0));
90ce3da70b43 Initial load
duke
parents:
diff changeset
   392
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   393
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   394
    /************************************************
90ce3da70b43 Initial load
duke
parents:
diff changeset
   395
     *
90ce3da70b43 Initial load
duke
parents:
diff changeset
   396
     * Text metrics
90ce3da70b43 Initial load
duke
parents:
diff changeset
   397
     *
90ce3da70b43 Initial load
duke
parents:
diff changeset
   398
     ************************************************/
90ce3da70b43 Initial load
duke
parents:
diff changeset
   399
90ce3da70b43 Initial load
duke
parents:
diff changeset
   400
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   401
     * Returns text metrics of menu item.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   402
     * This function does not use any locks
90ce3da70b43 Initial load
duke
parents:
diff changeset
   403
     * and is guaranteed to return some value
90ce3da70b43 Initial load
duke
parents:
diff changeset
   404
     * (possibly actual, possibly expired)
90ce3da70b43 Initial load
duke
parents:
diff changeset
   405
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   406
    TextMetrics getTextMetrics() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   407
        TextMetrics textMetrics = this.textMetrics;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   408
        if (textMetrics == null) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   409
            textMetrics = calcTextMetrics();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   410
            this.textMetrics = textMetrics;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   411
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   412
        return textMetrics;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   413
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   414
90ce3da70b43 Initial load
duke
parents:
diff changeset
   415
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   416
     * Returns dimensions of item's label.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   417
     * This function does not use any locks
90ce3da70b43 Initial load
duke
parents:
diff changeset
   418
     * Returns actual or expired  value
90ce3da70b43 Initial load
duke
parents:
diff changeset
   419
     * or null if error occurs
90ce3da70b43 Initial load
duke
parents:
diff changeset
   420
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   421
    /*Dimension getTextDimension() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   422
        TextMetrics textMetrics = this.textMetrics;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   423
        if (textMetrics == null) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   424
            textMetrics = calcTextMetrics();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   425
            this.textMetrics = textMetrics;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   426
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   427
        return (textMetrics != null) ? textMetrics.textDimension : null;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   428
        }*/
90ce3da70b43 Initial load
duke
parents:
diff changeset
   429
90ce3da70b43 Initial load
duke
parents:
diff changeset
   430
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   431
     * Returns width of item's shortcut label,
90ce3da70b43 Initial load
duke
parents:
diff changeset
   432
     * 0 if item has no shortcut.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   433
     * The height of shortcut can be deternimed
90ce3da70b43 Initial load
duke
parents:
diff changeset
   434
     * from text dimensions.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   435
     * This function does not use any locks
90ce3da70b43 Initial load
duke
parents:
diff changeset
   436
     * and is guaranteed to return some value
90ce3da70b43 Initial load
duke
parents:
diff changeset
   437
     * (possibly actual, possibly expired)
90ce3da70b43 Initial load
duke
parents:
diff changeset
   438
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   439
    /*int getShortcutWidth() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   440
        TextMetrics textMetrics = this.textMetrics;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   441
        if (textMetrics == null) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   442
            textMetrics = calcTextMetrics();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   443
            this.textMetrics = textMetrics;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   444
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   445
        return (textMetrics != null) ? textMetrics.shortcutWidth : 0;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   446
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   447
90ce3da70b43 Initial load
duke
parents:
diff changeset
   448
    int getTextBaseline() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   449
        TextMetrics textMetrics = this.textMetrics;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   450
        if (textMetrics == null) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   451
            textMetrics = calcTextMetrics();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   452
            this.textMetrics = textMetrics;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   453
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   454
        return (textMetrics != null) ? textMetrics.textBaseline : 0;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   455
        }*/
90ce3da70b43 Initial load
duke
parents:
diff changeset
   456
90ce3da70b43 Initial load
duke
parents:
diff changeset
   457
    TextMetrics calcTextMetrics() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   458
        if (container == null) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   459
            return null;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   460
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   461
        if (isSeparator()) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   462
            return new TextMetrics(new Dimension(SEPARATOR_WIDTH, SEPARATOR_HEIGHT), 0, 0);
90ce3da70b43 Initial load
duke
parents:
diff changeset
   463
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   464
        Graphics g = container.getGraphics();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   465
        if (g == null) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   466
            return null;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   467
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   468
        try {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   469
            g.setFont(getTargetFont());
90ce3da70b43 Initial load
duke
parents:
diff changeset
   470
            FontMetrics fm = g.getFontMetrics();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   471
            String str = getTargetLabel();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   472
            int width = fm.stringWidth(str);
90ce3da70b43 Initial load
duke
parents:
diff changeset
   473
            int height = fm.getHeight();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   474
            Dimension textDimension = new Dimension(width, height);
90ce3da70b43 Initial load
duke
parents:
diff changeset
   475
            int textBaseline = fm.getHeight() - fm.getAscent();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   476
            String sc = getShortcutText();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   477
            int shortcutWidth = (sc == null) ? 0 : fm.stringWidth(sc);
90ce3da70b43 Initial load
duke
parents:
diff changeset
   478
            return new TextMetrics(textDimension, shortcutWidth, textBaseline);
90ce3da70b43 Initial load
duke
parents:
diff changeset
   479
        } finally {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   480
            g.dispose();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   481
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   482
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   483
90ce3da70b43 Initial load
duke
parents:
diff changeset
   484
    void resetTextMetrics() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   485
        textMetrics = null;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   486
        if (container != null) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   487
            container.updateSize();
90ce3da70b43 Initial load
duke
parents:
diff changeset
   488
        }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   489
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   490
90ce3da70b43 Initial load
duke
parents:
diff changeset
   491
    /************************************************
90ce3da70b43 Initial load
duke
parents:
diff changeset
   492
     *
90ce3da70b43 Initial load
duke
parents:
diff changeset
   493
     * Mapping utility functions
90ce3da70b43 Initial load
duke
parents:
diff changeset
   494
     *
90ce3da70b43 Initial load
duke
parents:
diff changeset
   495
     ************************************************/
90ce3da70b43 Initial load
duke
parents:
diff changeset
   496
90ce3da70b43 Initial load
duke
parents:
diff changeset
   497
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   498
     * Sets mapping of item to window.
90ce3da70b43 Initial load
duke
parents:
diff changeset
   499
     * @param bounds bounds of item in container's coordinates
90ce3da70b43 Initial load
duke
parents:
diff changeset
   500
     * @param textOrigin point for drawString in container's coordinates
90ce3da70b43 Initial load
duke
parents:
diff changeset
   501
     * @see XBaseMenuWindow.map()
90ce3da70b43 Initial load
duke
parents:
diff changeset
   502
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   503
    void map(Rectangle bounds, Point textOrigin) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   504
        this.bounds = bounds;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   505
        this.textOrigin = textOrigin;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   506
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   507
90ce3da70b43 Initial load
duke
parents:
diff changeset
   508
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   509
     * returns bounds of item that were previously set by map() function
90ce3da70b43 Initial load
duke
parents:
diff changeset
   510
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   511
    Rectangle getBounds() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   512
        return bounds;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   513
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   514
90ce3da70b43 Initial load
duke
parents:
diff changeset
   515
    /**
90ce3da70b43 Initial load
duke
parents:
diff changeset
   516
     * returns origin of item's text that was previously set by map() function
90ce3da70b43 Initial load
duke
parents:
diff changeset
   517
     */
90ce3da70b43 Initial load
duke
parents:
diff changeset
   518
    Point getTextOrigin() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
   519
        return textOrigin;
90ce3da70b43 Initial load
duke
parents:
diff changeset
   520
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
   521
90ce3da70b43 Initial load
duke
parents:
diff changeset
   522
}