Source Code Cross Referenced for QtMenuBarPeer.java in  » 6.0-JDK-Modules » j2me » sun » awt » qt » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » j2me » sun.awt.qt 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * @(#)QtMenuBarPeer.java	1.11 06/10/10
003:         *
004:         * Copyright  1990-2006 Sun Microsystems, Inc. All Rights Reserved.
005:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
006:         * 
007:         * This program is free software; you can redistribute it and/or
008:         * modify it under the terms of the GNU General Public License version
009:         * 2 only, as published by the Free Software Foundation. 
010:         * 
011:         * This program is distributed in the hope that it will be useful, but
012:         * WITHOUT ANY WARRANTY; without even the implied warranty of
013:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014:         * General Public License version 2 for more details (a copy is
015:         * included at /legal/license.txt). 
016:         * 
017:         * You should have received a copy of the GNU General Public License
018:         * version 2 along with this work; if not, write to the Free Software
019:         * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020:         * 02110-1301 USA 
021:         * 
022:         * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
023:         * Clara, CA 95054 or visit www.sun.com if you need additional
024:         * information or have any questions. 
025:         *
026:         */
027:        package sun.awt.qt;
028:
029:        import sun.awt.peer.*;
030:        import java.awt.*;
031:
032:        /**
033:         *
034:         *
035:         * @author Nicholas Allen
036:         */
037:
038:        class QtMenuBarPeer implements  MenuBarPeer, QtMenuContainer {
039:            private static native void initIDs();
040:
041:            static {
042:                initIDs();
043:            }
044:
045:            /** Creates a new QtMenuBarPeer. */
046:
047:            public QtMenuBarPeer(MenuBar target) {
048:                this .target = target;
049:                create();
050:                Font f = target.getFont();
051:                if (f != null) {
052:                    setFont(f);
053:                }
054:            }
055:
056:            public QtMenuBarPeer getMenuBar() {
057:                return this ;
058:            }
059:
060:            protected native void create();
061:
062:            public native void dispose();
063:
064:            // 4678754
065:            public void add(QtMenuItemPeer item) {
066:                // This method is called as a side-effect of creating the 
067:                // peer (See QtMenuItemPeer). The code that computes if the item 
068:                // passed is a helpmenu will only be correct if this was called 
069:                // in the context of QtMenuBarPeer creation.
070:                //
071:                // When this is called after this peer creation, we cannot 
072:                // determine correctly if the "item" is a help menu, since the
073:                // marking of the menu is done after this is called. The good
074:                // news is that we will get notified in "addHelpMenu()" if the 
075:                // item was really a helpmenu. 
076:                //
077:                // The bottom line is, if isHelpMenu is true it is always correct,
078:                // and we let the native layer know that information. If it is
079:                // false, then AWT code would call "addHelpMenu()", if the item
080:                // passed was supposed to be a helpmenu item. In a nutshell we
081:                // always do the following actions in either case
082:                // - addNative(menuPeer) ;
083:                // - if ( menuPeer is an helpMenu )
084:                //     setAsHelpMenu(menuPeer)
085:                boolean isHelpMenu = (((MenuBar) this .target).getHelpMenu() == item.target);
086:
087:                addNative(item);
088:                if (isHelpMenu) {
089:                    // set the menupeer as the help menu
090:                    setAsHelpMenu((QtMenuPeer) item);
091:                }
092:            }
093:
094:            native void addNative(QtMenuItemPeer item);
095:
096:            native void setAsHelpMenu(QtMenuPeer menuPeer);
097:
098:            // 4678754
099:
100:            /** This method does not need to do anything because the menuitem peer will add itself to a
101:             QtMenuContainer when it is created. */
102:
103:            public void addMenu(Menu m) {
104:            }
105:
106:            public void delMenu(int index) {
107:            }
108:
109:            // 4678754
110:            public void addHelpMenu(Menu m) {
111:                // note : this method is called after addNative() has been called
112:                // on "m" (See MenuBar.setHelpMenu() for details)
113:                setAsHelpMenu((QtMenuPeer) QtToolkit.getMenuComponentPeer(m));
114:            }
115:
116:            // 4678754
117:
118:            public native void setFont(Font f);
119:
120:            private MenuBar target;
121:            private int data;
122:        }
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