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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 | +} | |