| /* |
| * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.java.swing.plaf.windows; |
| |
| import java.awt.Component; |
| import java.awt.Graphics; |
| import java.awt.Insets; |
| import java.awt.KeyEventPostProcessor; |
| import java.awt.KeyboardFocusManager; |
| import java.awt.Window; |
| import java.awt.event.KeyEvent; |
| import javax.swing.*; |
| import javax.swing.event.*; |
| import javax.swing.plaf.*; |
| import javax.swing.plaf.basic.*; |
| |
| import sun.swing.StringUIClientPropertyKey; |
| |
| import com.sun.java.swing.plaf.windows.TMSchema.Part; |
| import com.sun.java.swing.plaf.windows.TMSchema.State; |
| import com.sun.java.swing.plaf.windows.XPStyle.Skin; |
| import static sun.swing.SwingUtilities2.BASICMENUITEMUI_MAX_TEXT_OFFSET; |
| |
| /** |
| * Windows rendition of the component. |
| * <p> |
| * <strong>Warning:</strong> |
| * Serialized objects of this class will not be compatible with |
| * future Swing releases. The current serialization support is appropriate |
| * for short term storage or RMI between applications running the same |
| * version of Swing. A future release of Swing will provide support for |
| * long term persistence. |
| * |
| * @author Igor Kushnirskiy |
| */ |
| public class WindowsPopupMenuUI extends BasicPopupMenuUI { |
| |
| static MnemonicListener mnemonicListener = null; |
| static final Object GUTTER_OFFSET_KEY = |
| new StringUIClientPropertyKey("GUTTER_OFFSET_KEY"); |
| |
| public static ComponentUI createUI(JComponent c) { |
| return new WindowsPopupMenuUI(); |
| } |
| |
| public void installListeners() { |
| super.installListeners(); |
| if (! UIManager.getBoolean("Button.showMnemonics") && |
| mnemonicListener == null) { |
| |
| mnemonicListener = new MnemonicListener(); |
| MenuSelectionManager.defaultManager(). |
| addChangeListener(mnemonicListener); |
| } |
| } |
| |
| /** |
| * Returns the <code>Popup</code> that will be responsible for |
| * displaying the <code>JPopupMenu</code>. |
| * |
| * @param popupMenu JPopupMenu requesting Popup |
| * @param x Screen x location Popup is to be shown at |
| * @param y Screen y location Popup is to be shown at. |
| * @return Popup that will show the JPopupMenu |
| * @since 1.4 |
| */ |
| public Popup getPopup(JPopupMenu popupMenu, int x, int y) { |
| PopupFactory popupFactory = PopupFactory.getSharedInstance(); |
| return popupFactory.getPopup(popupMenu.getInvoker(), popupMenu, x, y); |
| } |
| |
| static class MnemonicListener implements ChangeListener { |
| JRootPane repaintRoot = null; |
| |
| public void stateChanged(ChangeEvent ev) { |
| MenuSelectionManager msm = (MenuSelectionManager)ev.getSource(); |
| MenuElement[] path = msm.getSelectedPath(); |
| if (path.length == 0) { |
| if(!WindowsLookAndFeel.isMnemonicHidden()) { |
| // menu was canceled -- hide mnemonics |
| WindowsLookAndFeel.setMnemonicHidden(true); |
| if (repaintRoot != null) { |
| Window win = |
| SwingUtilities.getWindowAncestor(repaintRoot); |
| WindowsGraphicsUtils.repaintMnemonicsInWindow(win); |
| } |
| } |
| } else { |
| Component c = (Component)path[0]; |
| if (c instanceof JPopupMenu) c = ((JPopupMenu)c).getInvoker(); |
| repaintRoot = SwingUtilities.getRootPane(c); |
| } |
| } |
| } |
| |
| /** |
| * Returns offset for the text. |
| * BasicMenuItemUI sets max text offset on the JPopupMenuUI. |
| * @param c PopupMenu to return text offset for. |
| * @return text offset for the component |
| */ |
| static int getTextOffset(JComponent c) { |
| int rv = -1; |
| Object maxTextOffset = |
| c.getClientProperty(BASICMENUITEMUI_MAX_TEXT_OFFSET); |
| if (maxTextOffset instanceof Integer) { |
| /* |
| * this is in JMenuItem coordinates. |
| * Let's assume all the JMenuItem have the same offset along X. |
| */ |
| rv = (Integer) maxTextOffset; |
| int menuItemOffset = 0; |
| Component component = c.getComponent(0); |
| if (component != null) { |
| menuItemOffset = component.getX(); |
| } |
| rv += menuItemOffset; |
| } |
| return rv; |
| } |
| |
| /** |
| * Returns span before gutter. |
| * used only on Vista. |
| * @return span before gutter |
| */ |
| static int getSpanBeforeGutter() { |
| return 3; |
| } |
| |
| /** |
| * Returns span after gutter. |
| * used only on Vista. |
| * @return span after gutter |
| */ |
| static int getSpanAfterGutter() { |
| return 3; |
| } |
| |
| /** |
| * Returns gutter width. |
| * used only on Vista. |
| * @return width of the gutter |
| */ |
| static int getGutterWidth() { |
| int rv = 2; |
| XPStyle xp = XPStyle.getXP(); |
| if (xp != null) { |
| Skin skin = xp.getSkin(null, Part.MP_POPUPGUTTER); |
| rv = skin.getWidth(); |
| } |
| return rv; |
| } |
| |
| /** |
| * Checks if PopupMenu is leftToRight |
| * The orientation is derived from the children of the component. |
| * It is leftToRight if all the children are leftToRight |
| * |
| * @param c component to return orientation for |
| * @return true if all the children are leftToRight |
| */ |
| private static boolean isLeftToRight(JComponent c) { |
| boolean leftToRight = true; |
| for (int i = c.getComponentCount() - 1; i >=0 && leftToRight; i-- ) { |
| leftToRight = |
| c.getComponent(i).getComponentOrientation().isLeftToRight(); |
| } |
| return leftToRight; |
| } |
| |
| @Override |
| public void paint(Graphics g, JComponent c) { |
| XPStyle xp = XPStyle.getXP(); |
| if (WindowsMenuItemUI.isVistaPainting(xp)) { |
| Skin skin = xp.getSkin(c, Part.MP_POPUPBACKGROUND); |
| skin.paintSkin(g, 0, 0, c.getWidth(),c.getHeight(), State.NORMAL); |
| int textOffset = getTextOffset(c); |
| if (textOffset >= 0 |
| /* paint gutter only for leftToRight case */ |
| && isLeftToRight(c)) { |
| skin = xp.getSkin(c, Part.MP_POPUPGUTTER); |
| int gutterWidth = getGutterWidth(); |
| int gutterOffset = |
| textOffset - getSpanAfterGutter() - gutterWidth; |
| c.putClientProperty(GUTTER_OFFSET_KEY, |
| Integer.valueOf(gutterOffset)); |
| Insets insets = c.getInsets(); |
| skin.paintSkin(g, gutterOffset, insets.top, |
| gutterWidth, c.getHeight() - insets.bottom - insets.top, |
| State.NORMAL); |
| } else { |
| if (c.getClientProperty(GUTTER_OFFSET_KEY) != null) { |
| c.putClientProperty(GUTTER_OFFSET_KEY, null); |
| } |
| } |
| } else { |
| super.paint(g, c); |
| } |
| } |
| } |
