1 /*
   2  * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.java.swing.plaf.windows;
  27 
  28 import java.awt.*;
  29 import javax.swing.*;
  30 import javax.swing.plaf.*;
  31 import javax.swing.plaf.basic.*;
  32 
  33 import sun.swing.SwingUtilities2;
  34 
  35 import com.sun.java.swing.plaf.windows.TMSchema.*;
  36 import com.sun.java.swing.plaf.windows.XPStyle.*;
  37 
  38 /**
  39  * Windows rendition of the component.
  40  * <p>
  41  * <strong>Warning:</strong>
  42  * Serialized objects of this class will not be compatible with
  43  * future Swing releases.  The current serialization support is appropriate
  44  * for short term storage or RMI between applications running the same
  45  * version of Swing.  A future release of Swing will provide support for
  46  * long term persistence.
  47  *
  48  * @author Igor Kushnirskiy
  49  */
  50 
  51 public class WindowsMenuItemUI extends BasicMenuItemUI {
  52     final WindowsMenuItemUIAccessor accessor =
  53         new  WindowsMenuItemUIAccessor() {
  54 
  55             public JMenuItem getMenuItem() {
  56                 return menuItem;
  57             }
  58 
  59             public State getState(JMenuItem menuItem) {
  60                 return WindowsMenuItemUI.getState(this, menuItem);
  61             }
  62 
  63             public Part getPart(JMenuItem menuItem) {
  64                 return WindowsMenuItemUI.getPart(this, menuItem);
  65             }
  66     };
  67     public static ComponentUI createUI(JComponent c) {
  68         return new WindowsMenuItemUI();
  69     }
  70 
  71     /**
  72      * Method which renders the text of the current menu item.
  73      * <p>
  74      * @param g Graphics context
  75      * @param menuItem Current menu item to render
  76      * @param textRect Bounding rectangle to render the text.
  77      * @param text String to render
  78      */
  79     protected void paintText(Graphics g, JMenuItem menuItem,
  80                              Rectangle textRect, String text) {
  81         if (WindowsMenuItemUI.isVistaPainting()) {
  82             WindowsMenuItemUI.paintText(accessor, g, menuItem, textRect, text);
  83             return;
  84         }
  85         ButtonModel model = menuItem.getModel();
  86         Color oldColor = g.getColor();
  87 
  88         if(model.isEnabled() &&
  89             (model.isArmed() || (menuItem instanceof JMenu &&
  90              model.isSelected()))) {
  91             g.setColor(selectionForeground); // Uses protected field.
  92         }
  93 
  94         WindowsGraphicsUtils.paintText(g, menuItem, textRect, text, 0);
  95 
  96         g.setColor(oldColor);
  97     }
  98 
  99     @Override
 100     protected void paintBackground(Graphics g, JMenuItem menuItem,
 101             Color bgColor) {
 102         if (WindowsMenuItemUI.isVistaPainting()) {
 103             WindowsMenuItemUI.paintBackground(accessor, g, menuItem, bgColor);
 104             return;
 105         }
 106         super.paintBackground(g, menuItem, bgColor);
 107     }
 108 
 109     static void paintBackground(WindowsMenuItemUIAccessor menuItemUI,
 110             Graphics g, JMenuItem menuItem, Color bgColor) {
 111         XPStyle xp = XPStyle.getXP();
 112         assert isVistaPainting(xp);
 113         if (isVistaPainting(xp)) {
 114             int menuWidth = menuItem.getWidth();
 115             int menuHeight = menuItem.getHeight();
 116             if (menuItem.isOpaque()) {
 117                 Color oldColor = g.getColor();
 118                 g.setColor(menuItem.getBackground());
 119                 g.fillRect(0,0, menuWidth, menuHeight);
 120                 g.setColor(oldColor);
 121             }
 122             Part part = menuItemUI.getPart(menuItem);
 123             Skin skin = xp.getSkin(menuItem, part);
 124             skin.paintSkin(g, 0 , 0,
 125                 menuWidth,
 126                 menuHeight,
 127                 menuItemUI.getState(menuItem));
 128         }
 129     }
 130 
 131     static void paintText(WindowsMenuItemUIAccessor menuItemUI, Graphics g,
 132                                 JMenuItem menuItem, Rectangle textRect,
 133                                 String text) {
 134         assert isVistaPainting();
 135         if (isVistaPainting()) {
 136             State state = menuItemUI.getState(menuItem);
 137 
 138             /* part of it copied from WindowsGraphicsUtils.java */
 139             FontMetrics fm = SwingUtilities2.getFontMetrics(menuItem, g);
 140             int mnemIndex = menuItem.getDisplayedMnemonicIndex();
 141             // W2K Feature: Check to see if the Underscore should be rendered.
 142             if (WindowsLookAndFeel.isMnemonicHidden() == true) {
 143                 mnemIndex = -1;
 144             }
 145             WindowsGraphicsUtils.paintXPText(menuItem,
 146                 menuItemUI.getPart(menuItem), state,
 147                 g, textRect.x,
 148                 textRect.y + fm.getAscent(),
 149                 text, mnemIndex);
 150         }
 151     }
 152 
 153     static State getState(WindowsMenuItemUIAccessor menuItemUI, JMenuItem menuItem) {
 154         State state;
 155         ButtonModel model = menuItem.getModel();
 156         if (model.isArmed()) {
 157             state = (model.isEnabled()) ? State.HOT : State.DISABLEDHOT;
 158         } else {
 159             state = (model.isEnabled()) ? State.NORMAL : State.DISABLED;
 160         }
 161         return state;
 162     }
 163 
 164     static Part getPart(WindowsMenuItemUIAccessor menuItemUI, JMenuItem menuItem) {
 165         return Part.MP_POPUPITEM;
 166     }
 167 
 168     /*
 169      * TODO idk can we use XPStyle.isVista?
 170      * is it possible that in some theme some Vista parts are not defined while
 171      * others are?
 172      */
 173     static boolean isVistaPainting(final XPStyle xp) {
 174         return xp != null && xp.isSkinDefined(null, Part.MP_POPUPITEM);
 175     }
 176 
 177     static boolean isVistaPainting() {
 178         return isVistaPainting(XPStyle.getXP());
 179     }
 180 }