| /* |
| * Copyright (c) 2002, 2010, 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; |
| |
| import sun.awt.AppContext; |
| import sun.awt.SunToolkit; |
| |
| import java.util.Collections; |
| import java.util.Map; |
| import java.util.WeakHashMap; |
| import java.applet.Applet; |
| import java.awt.Component; |
| import java.awt.Container; |
| import java.awt.Window; |
| import javax.swing.JComponent; |
| import javax.swing.RepaintManager; |
| |
| /** |
| * A collection of utility methods for Swing. |
| * <p> |
| * <b>WARNING:</b> While this class is public, it should not be treated as |
| * public API and its API may change in incompatable ways between dot dot |
| * releases and even patch releases. You should not rely on this class even |
| * existing. |
| * |
| * This is a second part of sun.swing.SwingUtilities2. It is required |
| * to provide services for JavaFX applets. |
| * |
| */ |
| public class SwingUtilities3 { |
| /** |
| * The {@code clientProperty} key for delegate {@code RepaintManager} |
| */ |
| private static final Object DELEGATE_REPAINT_MANAGER_KEY = |
| new StringBuilder("DelegateRepaintManagerKey"); |
| |
| /** |
| * Registers delegate RepaintManager for {@code JComponent}. |
| */ |
| public static void setDelegateRepaintManager(JComponent component, |
| RepaintManager repaintManager) { |
| /* setting up flag in AppContext to speed up lookups in case |
| * there are no delegate RepaintManagers used. |
| */ |
| AppContext.getAppContext().put(DELEGATE_REPAINT_MANAGER_KEY, |
| Boolean.TRUE); |
| |
| component.putClientProperty(DELEGATE_REPAINT_MANAGER_KEY, |
| repaintManager); |
| } |
| |
| private static final Map<Container, Boolean> vsyncedMap = |
| Collections.synchronizedMap(new WeakHashMap<Container, Boolean>()); |
| |
| /** |
| * Sets vsyncRequested state for the {@code rootContainer}. If |
| * {@code isRequested} is {@code true} then vsynced |
| * {@code BufferStrategy} is enabled for this {@code rootContainer}. |
| * |
| * Note: requesting vsynced painting does not guarantee one. The outcome |
| * depends on current RepaintManager's RepaintManager.PaintManager |
| * and on the capabilities of the graphics hardware/software and what not. |
| * |
| * @param rootContainer topmost container. Should be either {@code Window} |
| * or {@code Applet} |
| * @param isRequested the value to set vsyncRequested state to |
| */ |
| @SuppressWarnings("deprecation") |
| public static void setVsyncRequested(Container rootContainer, |
| boolean isRequested) { |
| assert (rootContainer instanceof Applet) || (rootContainer instanceof Window); |
| if (isRequested) { |
| vsyncedMap.put(rootContainer, Boolean.TRUE); |
| } else { |
| vsyncedMap.remove(rootContainer); |
| } |
| } |
| |
| /** |
| * Checks if vsync painting is requested for {@code rootContainer} |
| * |
| * @param rootContainer topmost container. Should be either Window or Applet |
| * @return {@code true} if vsync painting is requested for {@code rootContainer} |
| */ |
| @SuppressWarnings("deprecation") |
| public static boolean isVsyncRequested(Container rootContainer) { |
| assert (rootContainer instanceof Applet) || (rootContainer instanceof Window); |
| return Boolean.TRUE == vsyncedMap.get(rootContainer); |
| } |
| |
| /** |
| * Returns delegate {@code RepaintManager} for {@code component} hierarchy. |
| */ |
| public static RepaintManager getDelegateRepaintManager(Component |
| component) { |
| RepaintManager delegate = null; |
| if (Boolean.TRUE == SunToolkit.targetToAppContext(component) |
| .get(DELEGATE_REPAINT_MANAGER_KEY)) { |
| while (delegate == null && component != null) { |
| while (component != null |
| && ! (component instanceof JComponent)) { |
| component = component.getParent(); |
| } |
| if (component != null) { |
| delegate = (RepaintManager) |
| ((JComponent) component) |
| .getClientProperty(DELEGATE_REPAINT_MANAGER_KEY); |
| component = component.getParent(); |
| } |
| |
| } |
| } |
| return delegate; |
| } |
| } |