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| 1 | /* | ||
| 2 | * Copyright (c) 1997, 2006, 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.Component; | ||
| 29 | import java.awt.Graphics; | ||
| 30 | import java.awt.Insets; | ||
| 31 | import java.awt.KeyEventPostProcessor; | ||
| 32 | import java.awt.KeyboardFocusManager; | ||
| 33 | import java.awt.Window; | ||
| 34 | import java.awt.event.KeyEvent; | ||
| 35 | import javax.swing.*; | ||
| 36 | import javax.swing.event.*; | ||
| 37 | import javax.swing.plaf.*; | ||
| 38 | import javax.swing.plaf.basic.*; | ||
| 39 | |||
| 40 | import sun.swing.StringUIClientPropertyKey; | ||
| 41 | |||
| 42 | import com.sun.java.swing.plaf.windows.TMSchema.Part; | ||
| 43 | import com.sun.java.swing.plaf.windows.TMSchema.State; | ||
| 44 | import com.sun.java.swing.plaf.windows.XPStyle.Skin; | ||
| 45 | import static sun.swing.SwingUtilities2.BASICMENUITEMUI_MAX_TEXT_OFFSET; | ||
| 46 | |||
| 47 | /** | ||
| 48 | * Windows rendition of the component. | ||
| 49 | * <p> | ||
| 50 | * <strong>Warning:</strong> | ||
| 51 | * Serialized objects of this class will not be compatible with | ||
| 52 | * future Swing releases. The current serialization support is appropriate | ||
| 53 | * for short term storage or RMI between applications running the same | ||
| 54 | * version of Swing. A future release of Swing will provide support for | ||
| 55 | * long term persistence. | ||
| 56 | * | ||
| 57 | * @author Igor Kushnirskiy | ||
| 58 | */ | ||
| 59 | public class WindowsPopupMenuUI extends BasicPopupMenuUI { | ||
| 60 | |||
| 61 | static MnemonicListener mnemonicListener = null; | ||
| 62 | static final Object GUTTER_OFFSET_KEY = | ||
| 63 | new StringUIClientPropertyKey("GUTTER_OFFSET_KEY"); | ||
| 64 | |||
| 65 | public static ComponentUI createUI(JComponent c) { | ||
| 66 | return new WindowsPopupMenuUI(); | ||
| 67 | } | ||
| 68 | |||
| 69 | public void installListeners() { | ||
| 70 | super.installListeners(); | ||
| 71 | if (! UIManager.getBoolean("Button.showMnemonics") && | ||
| 72 | mnemonicListener == null) { | ||
| 73 | |||
| 74 | mnemonicListener = new MnemonicListener(); | ||
| 75 | MenuSelectionManager.defaultManager(). | ||
| 76 | addChangeListener(mnemonicListener); | ||
| 77 | } | ||
| 78 | } | ||
| 79 | |||
| 80 | /** | ||
| 81 | * Returns the <code>Popup</code> that will be responsible for | ||
| 82 | * displaying the <code>JPopupMenu</code>. | ||
| 83 | * | ||
| 84 | * @param popupMenu JPopupMenu requesting Popup | ||
| 85 | * @param x Screen x location Popup is to be shown at | ||
| 86 | * @param y Screen y location Popup is to be shown at. | ||
| 87 | * @return Popup that will show the JPopupMenu | ||
| 88 | * @since 1.4 | ||
| 89 | */ | ||
| 90 | public Popup getPopup(JPopupMenu popupMenu, int x, int y) { | ||
| 91 | PopupFactory popupFactory = PopupFactory.getSharedInstance(); | ||
| 92 | return popupFactory.getPopup(popupMenu.getInvoker(), popupMenu, x, y); | ||
| 93 | } | ||
| 94 | |||
| 95 | static class MnemonicListener implements ChangeListener { | ||
| 96 | JRootPane repaintRoot = null; | ||
| 97 | |||
| 98 | public void stateChanged(ChangeEvent ev) { | ||
| 99 | MenuSelectionManager msm = (MenuSelectionManager)ev.getSource(); | ||
| 100 | MenuElement[] path = msm.getSelectedPath(); | ||
| 101 | if (path.length == 0) { | ||
| 102 | if(!WindowsLookAndFeel.isMnemonicHidden()) { | ||
| 103 | // menu was canceled -- hide mnemonics | ||
| 104 | WindowsLookAndFeel.setMnemonicHidden(true); | ||
| 105 | if (repaintRoot != null) { | ||
| 106 | Window win = | ||
| 107 | SwingUtilities.getWindowAncestor(repaintRoot); | ||
| 108 | WindowsGraphicsUtils.repaintMnemonicsInWindow(win); | ||
| 109 | } | ||
| 110 | } | ||
| 111 | } else { | ||
| 112 | Component c = (Component)path[0]; | ||
| 113 | if (c instanceof JPopupMenu) c = ((JPopupMenu)c).getInvoker(); | ||
| 114 | repaintRoot = SwingUtilities.getRootPane(c); | ||
| 115 | } | ||
| 116 | } | ||
| 117 | } | ||
| 118 | |||
| 119 | /** | ||
| 120 | * Returns offset for the text. | ||
| 121 | * BasicMenuItemUI sets max text offset on the JPopupMenuUI. | ||
| 122 | * @param c PopupMenu to return text offset for. | ||
| 123 | * @return text offset for the component | ||
| 124 | */ | ||
| 125 | static int getTextOffset(JComponent c) { | ||
| 126 | int rv = -1; | ||
| 127 | Object maxTextOffset = | ||
| 128 | c.getClientProperty(BASICMENUITEMUI_MAX_TEXT_OFFSET); | ||
| 129 | if (maxTextOffset instanceof Integer) { | ||
| 130 | /* | ||
| 131 | * this is in JMenuItem coordinates. | ||
| 132 | * Let's assume all the JMenuItem have the same offset along X. | ||
| 133 | */ | ||
| 134 | rv = (Integer) maxTextOffset; | ||
| 135 | int menuItemOffset = 0; | ||
| 136 | Component component = c.getComponent(0); | ||
| 137 | if (component != null) { | ||
| 138 | menuItemOffset = component.getX(); | ||
| 139 | } | ||
| 140 | rv += menuItemOffset; | ||
| 141 | } | ||
| 142 | return rv; | ||
| 143 | } | ||
| 144 | |||
| 145 | /** | ||
| 146 | * Returns span before gutter. | ||
| 147 | * used only on Vista. | ||
| 148 | * @return span before gutter | ||
| 149 | */ | ||
| 150 | static int getSpanBeforeGutter() { | ||
| 151 | return 3; | ||
| 152 | } | ||
| 153 | |||
| 154 | /** | ||
| 155 | * Returns span after gutter. | ||
| 156 | * used only on Vista. | ||
| 157 | * @return span after gutter | ||
| 158 | */ | ||
| 159 | static int getSpanAfterGutter() { | ||
| 160 | return 3; | ||
| 161 | } | ||
| 162 | |||
| 163 | /** | ||
| 164 | * Returns gutter width. | ||
| 165 | * used only on Vista. | ||
| 166 | * @return width of the gutter | ||
| 167 | */ | ||
| 168 | static int getGutterWidth() { | ||
| 169 | int rv = 2; | ||
| 170 | XPStyle xp = XPStyle.getXP(); | ||
| 171 | if (xp != null) { | ||
| 172 | Skin skin = xp.getSkin(null, Part.MP_POPUPGUTTER); | ||
| 173 | rv = skin.getWidth(); | ||
| 174 | } | ||
| 175 | return rv; | ||
| 176 | } | ||
| 177 | |||
| 178 | /** | ||
| 179 | * Checks if PopupMenu is leftToRight | ||
| 180 | * The orientation is derived from the children of the component. | ||
| 181 | * It is leftToRight if all the children are leftToRight | ||
| 182 | * | ||
| 183 | * @param c component to return orientation for | ||
| 184 | * @return true if all the children are leftToRight | ||
| 185 | */ | ||
| 186 | private static boolean isLeftToRight(JComponent c) { | ||
| 187 | boolean leftToRight = true; | ||
| 188 | for (int i = c.getComponentCount() - 1; i >=0 && leftToRight; i-- ) { | ||
| 189 | leftToRight = | ||
| 190 | c.getComponent(i).getComponentOrientation().isLeftToRight(); | ||
| 191 | } | ||
| 192 | return leftToRight; | ||
| 193 | } | ||
| 194 | |||
| 195 | @Override | ||
| 196 | public void paint(Graphics g, JComponent c) { | ||
| 197 | if (WindowsMenuItemUI.isVistaPainting()) { | ||
| 198 | XPStyle xp = XPStyle.getXP(); | ||
| 199 | Skin skin = xp.getSkin(c, Part.MP_POPUPBACKGROUND); | ||
| 200 | skin.paintSkin(g, 0, 0, c.getWidth(),c.getHeight(), State.NORMAL); | ||
| 201 | int textOffset = getTextOffset(c); | ||
| 202 | if (textOffset >= 0 | ||
| 203 | /* paint gutter only for leftToRight case */ | ||
| 204 | && isLeftToRight(c)) { | ||
| 205 | skin = xp.getSkin(c, Part.MP_POPUPGUTTER); | ||
| 206 | int gutterWidth = getGutterWidth(); | ||
| 207 | int gutterOffset = | ||
| 208 | textOffset - getSpanAfterGutter() - gutterWidth; | ||
| 209 | c.putClientProperty(GUTTER_OFFSET_KEY, | ||
| 210 | Integer.valueOf(gutterOffset)); | ||
| 211 | Insets insets = c.getInsets(); | ||
| 212 | skin.paintSkin(g, gutterOffset, insets.top, | ||
| 213 | gutterWidth, c.getHeight() - insets.bottom - insets.top, | ||
| 214 | State.NORMAL); | ||
| 215 | } else { | ||
| 216 | if (c.getClientProperty(GUTTER_OFFSET_KEY) != null) { | ||
| 217 | c.putClientProperty(GUTTER_OFFSET_KEY, null); | ||
| 218 | } | ||
| 219 | } | ||
| 220 | } else { | ||
| 221 | super.paint(g, c); | ||
| 222 | } | ||
| 223 | } | ||
| 224 | } | ||