2073 lines
77 KiB
Java
2073 lines
77 KiB
Java
/*
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* Copyright (c) 2002, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.swing;
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import java.security.*;
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import java.lang.reflect.*;
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import java.awt.*;
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import static java.awt.RenderingHints.*;
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import java.awt.event.*;
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import java.awt.font.*;
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import java.awt.geom.*;
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import java.awt.print.PrinterGraphics;
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import java.text.BreakIterator;
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import java.text.CharacterIterator;
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import java.text.AttributedCharacterIterator;
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import java.text.AttributedString;
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import javax.swing.*;
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import javax.swing.event.TreeModelEvent;
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import javax.swing.text.Highlighter;
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import javax.swing.text.JTextComponent;
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import javax.swing.text.DefaultHighlighter;
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import javax.swing.text.DefaultCaret;
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import javax.swing.table.TableCellRenderer;
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import javax.swing.table.TableColumnModel;
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import javax.swing.tree.TreeModel;
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import javax.swing.tree.TreePath;
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import sun.swing.PrintColorUIResource;
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import sun.swing.ImageIconUIResource;
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import sun.print.ProxyPrintGraphics;
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import sun.awt.*;
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import sun.security.action.GetPropertyAction;
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import sun.security.util.SecurityConstants;
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import java.io.*;
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import java.util.*;
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import sun.font.FontDesignMetrics;
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import sun.font.FontUtilities;
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import sun.java2d.SunGraphicsEnvironment;
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import java.util.concurrent.Callable;
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import java.util.concurrent.Future;
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import java.util.concurrent.FutureTask;
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/**
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* A collection of utility methods for Swing.
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* <p>
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* <b>WARNING:</b> While this class is public, it should not be treated as
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* public API and its API may change in incompatable ways between dot dot
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* releases and even patch releases. You should not rely on this class even
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* existing.
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*
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*/
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public class SwingUtilities2 {
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/**
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* The <code>AppContext</code> key for our one <code>LAFState</code>
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* instance.
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*/
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public static final Object LAF_STATE_KEY =
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new StringBuffer("LookAndFeel State");
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public static final Object MENU_SELECTION_MANAGER_LISTENER_KEY =
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new StringBuffer("MenuSelectionManager listener key");
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// Maintain a cache of CACHE_SIZE fonts and the left side bearing
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// of the characters falling into the range MIN_CHAR_INDEX to
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// MAX_CHAR_INDEX. The values in fontCache are created as needed.
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private static LSBCacheEntry[] fontCache;
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// Windows defines 6 font desktop properties, we will therefore only
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// cache the metrics for 6 fonts.
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private static final int CACHE_SIZE = 6;
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// nextIndex in fontCache to insert a font into.
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private static int nextIndex;
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// LSBCacheEntry used to search in fontCache to see if we already
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// have an entry for a particular font
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private static LSBCacheEntry searchKey;
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// getLeftSideBearing will consult all characters that fall in the
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// range MIN_CHAR_INDEX to MAX_CHAR_INDEX.
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private static final int MIN_CHAR_INDEX = (int)'W';
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private static final int MAX_CHAR_INDEX = (int)'W' + 1;
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public static final FontRenderContext DEFAULT_FRC =
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new FontRenderContext(null, false, false);
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/**
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* A JComponent client property is used to determine text aa settings.
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* To avoid having this property persist between look and feels changes
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* the value of the property is set to null in JComponent.setUI
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*/
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public static final Object AA_TEXT_PROPERTY_KEY =
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new StringBuffer("AATextInfoPropertyKey");
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/**
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* Attribute key for the content elements. If it is set on an element, the
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* element is considered to be a line break.
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*/
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public static final String IMPLIED_CR = "CR";
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/**
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* Used to tell a text component, being used as an editor for table
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* or tree, how many clicks it took to start editing.
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*/
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private static final StringBuilder SKIP_CLICK_COUNT =
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new StringBuilder("skipClickCount");
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/* Presently this class assumes default fractional metrics.
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* This may need to change to emulate future platform L&Fs.
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*/
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public static class AATextInfo {
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private static AATextInfo getAATextInfoFromMap(Map hints) {
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Object aaHint = hints.get(KEY_TEXT_ANTIALIASING);
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Object contHint = hints.get(KEY_TEXT_LCD_CONTRAST);
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if (aaHint == null ||
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aaHint == VALUE_TEXT_ANTIALIAS_OFF ||
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aaHint == VALUE_TEXT_ANTIALIAS_DEFAULT) {
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return null;
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} else {
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return new AATextInfo(aaHint, (Integer)contHint);
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}
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}
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public static AATextInfo getAATextInfo(boolean lafCondition) {
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SunToolkit.setAAFontSettingsCondition(lafCondition);
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Toolkit tk = Toolkit.getDefaultToolkit();
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Object map = tk.getDesktopProperty(SunToolkit.DESKTOPFONTHINTS);
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if (map instanceof Map) {
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return getAATextInfoFromMap((Map)map);
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} else {
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return null;
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}
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}
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Object aaHint;
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Integer lcdContrastHint;
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FontRenderContext frc;
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/* These are rarely constructed objects, and only when a complete
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* UI is being updated, so the cost of the tests here is minimal
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* and saves tests elsewhere.
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* We test that the values are ones we support/expect.
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*/
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public AATextInfo(Object aaHint, Integer lcdContrastHint) {
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if (aaHint == null) {
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throw new InternalError("null not allowed here");
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}
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if (aaHint == VALUE_TEXT_ANTIALIAS_OFF ||
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aaHint == VALUE_TEXT_ANTIALIAS_DEFAULT) {
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throw new InternalError("AA must be on");
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}
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this.aaHint = aaHint;
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this.lcdContrastHint = lcdContrastHint;
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this.frc = new FontRenderContext(null, aaHint,
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VALUE_FRACTIONALMETRICS_DEFAULT);
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}
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}
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/**
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* Key used in client properties used to indicate that the
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* <code>ComponentUI</code> of the JComponent instance should be returned.
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*/
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public static final Object COMPONENT_UI_PROPERTY_KEY =
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new StringBuffer("ComponentUIPropertyKey");
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/** Client Property key for the text maximal offsets for BasicMenuItemUI */
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public static final StringUIClientPropertyKey BASICMENUITEMUI_MAX_TEXT_OFFSET =
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new StringUIClientPropertyKey ("maxTextOffset");
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// security stuff
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private static Field inputEvent_CanAccessSystemClipboard_Field = null;
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private static final String UntrustedClipboardAccess =
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"UNTRUSTED_CLIPBOARD_ACCESS_KEY";
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//all access to charsBuffer is to be synchronized on charsBufferLock
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private static final int CHAR_BUFFER_SIZE = 100;
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private static final Object charsBufferLock = new Object();
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private static char[] charsBuffer = new char[CHAR_BUFFER_SIZE];
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static {
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fontCache = new LSBCacheEntry[CACHE_SIZE];
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}
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/**
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* Fill the character buffer cache. Return the buffer length.
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*/
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private static int syncCharsBuffer(String s) {
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int length = s.length();
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if ((charsBuffer == null) || (charsBuffer.length < length)) {
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charsBuffer = s.toCharArray();
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} else {
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s.getChars(0, length, charsBuffer, 0);
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}
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return length;
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}
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/**
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* checks whether TextLayout is required to handle characters.
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*
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* @param text characters to be tested
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* @param start start
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* @param limit limit
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* @return <tt>true</tt> if TextLayout is required
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* <tt>false</tt> if TextLayout is not required
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*/
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public static final boolean isComplexLayout(char[] text, int start, int limit) {
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return FontUtilities.isComplexText(text, start, limit);
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}
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//
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// WARNING WARNING WARNING WARNING WARNING WARNING
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// Many of the following methods are invoked from older API.
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// As this older API was not passed a Component, a null Component may
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// now be passsed in. For example, SwingUtilities.computeStringWidth
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// is implemented to call SwingUtilities2.stringWidth, the
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// SwingUtilities variant does not take a JComponent, as such
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// SwingUtilities2.stringWidth can be passed a null Component.
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// In other words, if you add new functionality to these methods you
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// need to gracefully handle null.
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//
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/**
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* Returns whether or not text should be drawn antialiased.
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*
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* @param c JComponent to test.
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* @return Whether or not text should be drawn antialiased for the
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* specified component.
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*/
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public static AATextInfo drawTextAntialiased(JComponent c) {
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if (c != null) {
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/* a non-null property implies some form of AA requested */
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return (AATextInfo)c.getClientProperty(AA_TEXT_PROPERTY_KEY);
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}
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// No component, assume aa is off
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return null;
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}
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/**
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* Returns the left side bearing of the first character of string. The
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* left side bearing is calculated from the passed in
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* FontMetrics. If the passed in String is less than one
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* character {@code 0} is returned.
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*
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* @param c JComponent that will display the string
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* @param fm FontMetrics used to measure the String width
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* @param string String to get the left side bearing for.
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* @throws NullPointerException if {@code string} is {@code null}
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*
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* @return the left side bearing of the first character of string
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* or {@code 0} if the string is empty
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*/
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public static int getLeftSideBearing(JComponent c, FontMetrics fm,
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String string) {
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if ((string == null) || (string.length() == 0)) {
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return 0;
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}
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return getLeftSideBearing(c, fm, string.charAt(0));
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}
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/**
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* Returns the left side bearing of the first character of string. The
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* left side bearing is calculated from the passed in FontMetrics.
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*
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* @param c JComponent that will display the string
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* @param fm FontMetrics used to measure the String width
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* @param firstChar Character to get the left side bearing for.
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*/
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public static int getLeftSideBearing(JComponent c, FontMetrics fm,
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char firstChar) {
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int charIndex = (int) firstChar;
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if (charIndex < MAX_CHAR_INDEX && charIndex >= MIN_CHAR_INDEX) {
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byte[] lsbs = null;
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FontRenderContext frc = getFontRenderContext(c, fm);
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Font font = fm.getFont();
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synchronized (SwingUtilities2.class) {
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LSBCacheEntry entry = null;
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if (searchKey == null) {
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searchKey = new LSBCacheEntry(frc, font);
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} else {
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searchKey.reset(frc, font);
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}
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// See if we already have an entry for this pair
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for (LSBCacheEntry cacheEntry : fontCache) {
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if (searchKey.equals(cacheEntry)) {
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entry = cacheEntry;
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break;
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}
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}
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if (entry == null) {
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// No entry for this pair, add it.
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entry = searchKey;
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fontCache[nextIndex] = searchKey;
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searchKey = null;
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nextIndex = (nextIndex + 1) % CACHE_SIZE;
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}
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return entry.getLeftSideBearing(firstChar);
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}
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}
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return 0;
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}
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/**
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* Returns the FontMetrics for the current Font of the passed
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* in Graphics. This method is used when a Graphics
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* is available, typically when painting. If a Graphics is not
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* available the JComponent method of the same name should be used.
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* <p>
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* Callers should pass in a non-null JComponent, the exception
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* to this is if a JComponent is not readily available at the time of
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* painting.
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* <p>
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* This does not necessarily return the FontMetrics from the
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* Graphics.
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*
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* @param c JComponent requesting FontMetrics, may be null
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* @param g Graphics Graphics
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*/
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public static FontMetrics getFontMetrics(JComponent c, Graphics g) {
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return getFontMetrics(c, g, g.getFont());
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}
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/**
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* Returns the FontMetrics for the specified Font.
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* This method is used when a Graphics is available, typically when
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* painting. If a Graphics is not available the JComponent method of
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* the same name should be used.
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* <p>
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* Callers should pass in a non-null JComonent, the exception
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* to this is if a JComponent is not readily available at the time of
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* painting.
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* <p>
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* This does not necessarily return the FontMetrics from the
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* Graphics.
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*
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* @param c JComponent requesting FontMetrics, may be null
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* @param c Graphics Graphics
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* @param font Font to get FontMetrics for
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*/
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public static FontMetrics getFontMetrics(JComponent c, Graphics g,
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Font font) {
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if (c != null) {
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// Note: We assume that we're using the FontMetrics
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// from the widget to layout out text, otherwise we can get
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// mismatches when printing.
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return c.getFontMetrics(font);
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}
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return Toolkit.getDefaultToolkit().getFontMetrics(font);
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}
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/**
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* Returns the width of the passed in String.
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* If the passed String is <code>null</code>, returns zero.
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*
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* @param c JComponent that will display the string, may be null
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* @param fm FontMetrics used to measure the String width
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* @param string String to get the width of
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*/
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public static int stringWidth(JComponent c, FontMetrics fm, String string){
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if (string == null || string.equals("")) {
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return 0;
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}
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boolean needsTextLayout = ((c != null) &&
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(c.getClientProperty(TextAttribute.NUMERIC_SHAPING) != null));
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if (needsTextLayout) {
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synchronized(charsBufferLock) {
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int length = syncCharsBuffer(string);
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needsTextLayout = isComplexLayout(charsBuffer, 0, length);
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}
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}
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if (needsTextLayout) {
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TextLayout layout = createTextLayout(c, string,
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fm.getFont(), fm.getFontRenderContext());
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return (int) layout.getAdvance();
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} else {
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return fm.stringWidth(string);
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}
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}
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/**
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* Clips the passed in String to the space provided.
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*
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* @param c JComponent that will display the string, may be null
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* @param fm FontMetrics used to measure the String width
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* @param string String to display
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* @param availTextWidth Amount of space that the string can be drawn in
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* @return Clipped string that can fit in the provided space.
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*/
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public static String clipStringIfNecessary(JComponent c, FontMetrics fm,
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String string,
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int availTextWidth) {
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if ((string == null) || (string.equals(""))) {
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return "";
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}
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int textWidth = SwingUtilities2.stringWidth(c, fm, string);
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if (textWidth > availTextWidth) {
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return SwingUtilities2.clipString(c, fm, string, availTextWidth);
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}
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return string;
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}
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/**
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* Clips the passed in String to the space provided. NOTE: this assumes
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* the string does not fit in the available space.
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*
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* @param c JComponent that will display the string, may be null
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* @param fm FontMetrics used to measure the String width
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* @param string String to display
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* @param availTextWidth Amount of space that the string can be drawn in
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* @return Clipped string that can fit in the provided space.
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*/
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public static String clipString(JComponent c, FontMetrics fm,
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String string, int availTextWidth) {
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// c may be null here.
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String clipString = "...";
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availTextWidth -= SwingUtilities2.stringWidth(c, fm, clipString);
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if (availTextWidth <= 0) {
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//can not fit any characters
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return clipString;
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}
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boolean needsTextLayout;
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synchronized (charsBufferLock) {
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int stringLength = syncCharsBuffer(string);
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needsTextLayout =
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isComplexLayout(charsBuffer, 0, stringLength);
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if (!needsTextLayout) {
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int width = 0;
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for (int nChars = 0; nChars < stringLength; nChars++) {
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width += fm.charWidth(charsBuffer[nChars]);
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if (width > availTextWidth) {
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string = string.substring(0, nChars);
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break;
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}
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}
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}
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}
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if (needsTextLayout) {
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AttributedString aString = new AttributedString(string);
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if (c != null) {
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aString.addAttribute(TextAttribute.NUMERIC_SHAPING,
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c.getClientProperty(TextAttribute.NUMERIC_SHAPING));
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}
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LineBreakMeasurer measurer = new LineBreakMeasurer(
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aString.getIterator(), BreakIterator.getCharacterInstance(),
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getFontRenderContext(c, fm));
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string = string.substring(0, measurer.nextOffset(availTextWidth));
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}
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return string + clipString;
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}
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|
|
|
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/**
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* Draws the string at the specified location.
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*
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* @param c JComponent that will display the string, may be null
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* @param g Graphics to draw the text to
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* @param text String to display
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* @param x X coordinate to draw the text at
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* @param y Y coordinate to draw the text at
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*/
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public static void drawString(JComponent c, Graphics g, String text,
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int x, int y) {
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// c may be null
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|
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// All non-editable widgets that draw strings call into this
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// methods. By non-editable that means widgets like JLabel, JButton
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// but NOT JTextComponents.
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if ( text == null || text.length() <= 0 ) { //no need to paint empty strings
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return;
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}
|
|
if (isPrinting(g)) {
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|
Graphics2D g2d = getGraphics2D(g);
|
|
if (g2d != null) {
|
|
/* The printed text must scale linearly with the UI.
|
|
* Calculate the width on screen, obtain a TextLayout with
|
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* advances for the printer graphics FRC, and then justify
|
|
* it to fit in the screen width. This distributes the spacing
|
|
* more evenly than directly laying out to the screen advances.
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|
*/
|
|
String trimmedText = trimTrailingSpaces(text);
|
|
if (!trimmedText.isEmpty()) {
|
|
float screenWidth = (float) g2d.getFont().getStringBounds
|
|
(trimmedText, getFontRenderContext(c)).getWidth();
|
|
TextLayout layout = createTextLayout(c, text, g2d.getFont(),
|
|
g2d.getFontRenderContext());
|
|
|
|
// If text fits the screenWidth, then do not need to justify
|
|
if (SwingUtilities2.stringWidth(c, g2d.getFontMetrics(),
|
|
trimmedText) > screenWidth) {
|
|
layout = layout.getJustifiedLayout(screenWidth);
|
|
}
|
|
/* Use alternate print color if specified */
|
|
Color col = g2d.getColor();
|
|
if (col instanceof PrintColorUIResource) {
|
|
g2d.setColor(((PrintColorUIResource)col).getPrintColor());
|
|
}
|
|
|
|
layout.draw(g2d, x, y);
|
|
|
|
g2d.setColor(col);
|
|
}
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
// If we get here we're not printing
|
|
if (g instanceof Graphics2D) {
|
|
AATextInfo info = drawTextAntialiased(c);
|
|
Graphics2D g2 = (Graphics2D)g;
|
|
|
|
boolean needsTextLayout = ((c != null) &&
|
|
(c.getClientProperty(TextAttribute.NUMERIC_SHAPING) != null));
|
|
|
|
if (needsTextLayout) {
|
|
synchronized(charsBufferLock) {
|
|
int length = syncCharsBuffer(text);
|
|
needsTextLayout = isComplexLayout(charsBuffer, 0, length);
|
|
}
|
|
}
|
|
|
|
if (info != null) {
|
|
Object oldContrast = null;
|
|
Object oldAAValue = g2.getRenderingHint(KEY_TEXT_ANTIALIASING);
|
|
if (info.aaHint != oldAAValue) {
|
|
g2.setRenderingHint(KEY_TEXT_ANTIALIASING, info.aaHint);
|
|
} else {
|
|
oldAAValue = null;
|
|
}
|
|
if (info.lcdContrastHint != null) {
|
|
oldContrast = g2.getRenderingHint(KEY_TEXT_LCD_CONTRAST);
|
|
if (info.lcdContrastHint.equals(oldContrast)) {
|
|
oldContrast = null;
|
|
} else {
|
|
g2.setRenderingHint(KEY_TEXT_LCD_CONTRAST,
|
|
info.lcdContrastHint);
|
|
}
|
|
}
|
|
|
|
if (needsTextLayout) {
|
|
TextLayout layout = createTextLayout(c, text, g2.getFont(),
|
|
g2.getFontRenderContext());
|
|
layout.draw(g2, x, y);
|
|
} else {
|
|
g.drawString(text, x, y);
|
|
}
|
|
|
|
if (oldAAValue != null) {
|
|
g2.setRenderingHint(KEY_TEXT_ANTIALIASING, oldAAValue);
|
|
}
|
|
if (oldContrast != null) {
|
|
g2.setRenderingHint(KEY_TEXT_LCD_CONTRAST, oldContrast);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
if (needsTextLayout){
|
|
TextLayout layout = createTextLayout(c, text, g2.getFont(),
|
|
g2.getFontRenderContext());
|
|
layout.draw(g2, x, y);
|
|
return;
|
|
}
|
|
}
|
|
|
|
g.drawString(text, x, y);
|
|
}
|
|
|
|
/**
|
|
* Draws the string at the specified location underlining the specified
|
|
* character.
|
|
*
|
|
* @param c JComponent that will display the string, may be null
|
|
* @param g Graphics to draw the text to
|
|
* @param text String to display
|
|
* @param underlinedIndex Index of a character in the string to underline
|
|
* @param x X coordinate to draw the text at
|
|
* @param y Y coordinate to draw the text at
|
|
*/
|
|
public static void drawStringUnderlineCharAt(JComponent c,Graphics g,
|
|
String text, int underlinedIndex, int x,int y) {
|
|
if (text == null || text.length() <= 0) {
|
|
return;
|
|
}
|
|
SwingUtilities2.drawString(c, g, text, x, y);
|
|
int textLength = text.length();
|
|
if (underlinedIndex >= 0 && underlinedIndex < textLength ) {
|
|
int underlineRectY = y;
|
|
int underlineRectHeight = 1;
|
|
int underlineRectX = 0;
|
|
int underlineRectWidth = 0;
|
|
boolean isPrinting = isPrinting(g);
|
|
boolean needsTextLayout = isPrinting;
|
|
if (!needsTextLayout) {
|
|
synchronized (charsBufferLock) {
|
|
syncCharsBuffer(text);
|
|
needsTextLayout =
|
|
isComplexLayout(charsBuffer, 0, textLength);
|
|
}
|
|
}
|
|
if (!needsTextLayout) {
|
|
FontMetrics fm = g.getFontMetrics();
|
|
underlineRectX = x +
|
|
SwingUtilities2.stringWidth(c,fm,
|
|
text.substring(0,underlinedIndex));
|
|
underlineRectWidth = fm.charWidth(text.
|
|
charAt(underlinedIndex));
|
|
} else {
|
|
Graphics2D g2d = getGraphics2D(g);
|
|
if (g2d != null) {
|
|
TextLayout layout =
|
|
createTextLayout(c, text, g2d.getFont(),
|
|
g2d.getFontRenderContext());
|
|
if (isPrinting) {
|
|
float screenWidth = (float)g2d.getFont().
|
|
getStringBounds(text, getFontRenderContext(c)).getWidth();
|
|
// If text fits the screenWidth, then do not need to justify
|
|
if (SwingUtilities2.stringWidth(c, g2d.getFontMetrics(),
|
|
text) > screenWidth) {
|
|
layout = layout.getJustifiedLayout(screenWidth);
|
|
}
|
|
}
|
|
TextHitInfo leading =
|
|
TextHitInfo.leading(underlinedIndex);
|
|
TextHitInfo trailing =
|
|
TextHitInfo.trailing(underlinedIndex);
|
|
Shape shape =
|
|
layout.getVisualHighlightShape(leading, trailing);
|
|
Rectangle rect = shape.getBounds();
|
|
underlineRectX = x + rect.x;
|
|
underlineRectWidth = rect.width;
|
|
}
|
|
}
|
|
g.fillRect(underlineRectX, underlineRectY + 1,
|
|
underlineRectWidth, underlineRectHeight);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* A variation of locationToIndex() which only returns an index if the
|
|
* Point is within the actual bounds of a list item (not just in the cell)
|
|
* and if the JList has the "List.isFileList" client property set.
|
|
* Otherwise, this method returns -1.
|
|
* This is used to make WindowsL&F JFileChooser act like native dialogs.
|
|
*/
|
|
public static int loc2IndexFileList(JList list, Point point) {
|
|
int index = list.locationToIndex(point);
|
|
if (index != -1) {
|
|
Object bySize = list.getClientProperty("List.isFileList");
|
|
if (bySize instanceof Boolean && ((Boolean)bySize).booleanValue() &&
|
|
!pointIsInActualBounds(list, index, point)) {
|
|
index = -1;
|
|
}
|
|
}
|
|
return index;
|
|
}
|
|
|
|
|
|
/**
|
|
* Returns true if the given point is within the actual bounds of the
|
|
* JList item at index (not just inside the cell).
|
|
*/
|
|
private static boolean pointIsInActualBounds(JList list, int index,
|
|
Point point) {
|
|
ListCellRenderer renderer = list.getCellRenderer();
|
|
ListModel dataModel = list.getModel();
|
|
Object value = dataModel.getElementAt(index);
|
|
Component item = renderer.getListCellRendererComponent(list,
|
|
value, index, false, false);
|
|
Dimension itemSize = item.getPreferredSize();
|
|
Rectangle cellBounds = list.getCellBounds(index, index);
|
|
if (!item.getComponentOrientation().isLeftToRight()) {
|
|
cellBounds.x += (cellBounds.width - itemSize.width);
|
|
}
|
|
cellBounds.width = itemSize.width;
|
|
|
|
return cellBounds.contains(point);
|
|
}
|
|
|
|
|
|
/**
|
|
* Returns true if the given point is outside the preferredSize of the
|
|
* item at the given row of the table. (Column must be 0).
|
|
* Does not check the "Table.isFileList" property. That should be checked
|
|
* before calling this method.
|
|
* This is used to make WindowsL&F JFileChooser act like native dialogs.
|
|
*/
|
|
public static boolean pointOutsidePrefSize(JTable table, int row, int column, Point p) {
|
|
if (table.convertColumnIndexToModel(column) != 0 || row == -1) {
|
|
return true;
|
|
}
|
|
TableCellRenderer tcr = table.getCellRenderer(row, column);
|
|
Object value = table.getValueAt(row, column);
|
|
Component cell = tcr.getTableCellRendererComponent(table, value, false,
|
|
false, row, column);
|
|
Dimension itemSize = cell.getPreferredSize();
|
|
Rectangle cellBounds = table.getCellRect(row, column, false);
|
|
cellBounds.width = itemSize.width;
|
|
cellBounds.height = itemSize.height;
|
|
|
|
// See if coords are inside
|
|
// ASSUME: mouse x,y will never be < cell's x,y
|
|
assert (p.x >= cellBounds.x && p.y >= cellBounds.y);
|
|
return p.x > cellBounds.x + cellBounds.width ||
|
|
p.y > cellBounds.y + cellBounds.height;
|
|
}
|
|
|
|
/**
|
|
* Set the lead and anchor without affecting selection.
|
|
*/
|
|
public static void setLeadAnchorWithoutSelection(ListSelectionModel model,
|
|
int lead, int anchor) {
|
|
if (anchor == -1) {
|
|
anchor = lead;
|
|
}
|
|
if (lead == -1) {
|
|
model.setAnchorSelectionIndex(-1);
|
|
model.setLeadSelectionIndex(-1);
|
|
} else {
|
|
if (model.isSelectedIndex(lead)) {
|
|
model.addSelectionInterval(lead, lead);
|
|
} else {
|
|
model.removeSelectionInterval(lead, lead);
|
|
}
|
|
model.setAnchorSelectionIndex(anchor);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Ignore mouse events if the component is null, not enabled, the event
|
|
* is not associated with the left mouse button, or the event has been
|
|
* consumed.
|
|
*/
|
|
public static boolean shouldIgnore(MouseEvent me, JComponent c) {
|
|
return c == null || !c.isEnabled()
|
|
|| !SwingUtilities.isLeftMouseButton(me)
|
|
|| me.isConsumed();
|
|
}
|
|
|
|
/**
|
|
* Request focus on the given component if it doesn't already have it
|
|
* and <code>isRequestFocusEnabled()</code> returns true.
|
|
*/
|
|
public static void adjustFocus(JComponent c) {
|
|
if (!c.hasFocus() && c.isRequestFocusEnabled()) {
|
|
c.requestFocus();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* The following draw functions have the same semantic as the
|
|
* Graphics methods with the same names.
|
|
*
|
|
* this is used for printing
|
|
*/
|
|
public static int drawChars(JComponent c, Graphics g,
|
|
char[] data,
|
|
int offset,
|
|
int length,
|
|
int x,
|
|
int y) {
|
|
if ( length <= 0 ) { //no need to paint empty strings
|
|
return x;
|
|
}
|
|
int nextX = x + getFontMetrics(c, g).charsWidth(data, offset, length);
|
|
if (isPrinting(g)) {
|
|
Graphics2D g2d = getGraphics2D(g);
|
|
if (g2d != null) {
|
|
FontRenderContext deviceFontRenderContext = g2d.
|
|
getFontRenderContext();
|
|
FontRenderContext frc = getFontRenderContext(c);
|
|
if (frc != null &&
|
|
!isFontRenderContextPrintCompatible
|
|
(deviceFontRenderContext, frc)) {
|
|
|
|
String text = new String(data, offset, length);
|
|
TextLayout layout = new TextLayout(text, g2d.getFont(),
|
|
deviceFontRenderContext);
|
|
String trimmedText = trimTrailingSpaces(text);
|
|
if (!trimmedText.isEmpty()) {
|
|
float screenWidth = (float)g2d.getFont().
|
|
getStringBounds(trimmedText, frc).getWidth();
|
|
// If text fits the screenWidth, then do not need to justify
|
|
if (SwingUtilities2.stringWidth(c, g2d.getFontMetrics(),
|
|
trimmedText) > screenWidth) {
|
|
layout = layout.getJustifiedLayout(screenWidth);
|
|
}
|
|
|
|
/* Use alternate print color if specified */
|
|
Color col = g2d.getColor();
|
|
if (col instanceof PrintColorUIResource) {
|
|
g2d.setColor(((PrintColorUIResource)col).getPrintColor());
|
|
}
|
|
|
|
layout.draw(g2d,x,y);
|
|
|
|
g2d.setColor(col);
|
|
}
|
|
|
|
return nextX;
|
|
}
|
|
}
|
|
}
|
|
// Assume we're not printing if we get here, or that we are invoked
|
|
// via Swing text printing which is laid out for the printer.
|
|
AATextInfo info = drawTextAntialiased(c);
|
|
if (info != null && (g instanceof Graphics2D)) {
|
|
Graphics2D g2 = (Graphics2D)g;
|
|
|
|
Object oldContrast = null;
|
|
Object oldAAValue = g2.getRenderingHint(KEY_TEXT_ANTIALIASING);
|
|
if (info.aaHint != null && info.aaHint != oldAAValue) {
|
|
g2.setRenderingHint(KEY_TEXT_ANTIALIASING, info.aaHint);
|
|
} else {
|
|
oldAAValue = null;
|
|
}
|
|
if (info.lcdContrastHint != null) {
|
|
oldContrast = g2.getRenderingHint(KEY_TEXT_LCD_CONTRAST);
|
|
if (info.lcdContrastHint.equals(oldContrast)) {
|
|
oldContrast = null;
|
|
} else {
|
|
g2.setRenderingHint(KEY_TEXT_LCD_CONTRAST,
|
|
info.lcdContrastHint);
|
|
}
|
|
}
|
|
|
|
g.drawChars(data, offset, length, x, y);
|
|
|
|
if (oldAAValue != null) {
|
|
g2.setRenderingHint(KEY_TEXT_ANTIALIASING, oldAAValue);
|
|
}
|
|
if (oldContrast != null) {
|
|
g2.setRenderingHint(KEY_TEXT_LCD_CONTRAST, oldContrast);
|
|
}
|
|
}
|
|
else {
|
|
g.drawChars(data, offset, length, x, y);
|
|
}
|
|
return nextX;
|
|
}
|
|
|
|
/*
|
|
* see documentation for drawChars
|
|
* returns the advance
|
|
*/
|
|
public static float drawString(JComponent c, Graphics g,
|
|
AttributedCharacterIterator iterator,
|
|
int x,
|
|
int y) {
|
|
|
|
float retVal;
|
|
boolean isPrinting = isPrinting(g);
|
|
Color col = g.getColor();
|
|
|
|
if (isPrinting) {
|
|
/* Use alternate print color if specified */
|
|
if (col instanceof PrintColorUIResource) {
|
|
g.setColor(((PrintColorUIResource)col).getPrintColor());
|
|
}
|
|
}
|
|
|
|
Graphics2D g2d = getGraphics2D(g);
|
|
if (g2d == null) {
|
|
g.drawString(iterator,x,y); //for the cases where advance
|
|
//matters it should not happen
|
|
retVal = x;
|
|
|
|
} else {
|
|
FontRenderContext frc;
|
|
if (isPrinting) {
|
|
frc = getFontRenderContext(c);
|
|
if (frc.isAntiAliased() || frc.usesFractionalMetrics()) {
|
|
frc = new FontRenderContext(frc.getTransform(), false, false);
|
|
}
|
|
} else if ((frc = getFRCProperty(c)) != null) {
|
|
/* frc = frc; ! */
|
|
} else {
|
|
frc = g2d.getFontRenderContext();
|
|
}
|
|
TextLayout layout;
|
|
if (isPrinting) {
|
|
FontRenderContext deviceFRC = g2d.getFontRenderContext();
|
|
if (!isFontRenderContextPrintCompatible(frc, deviceFRC)) {
|
|
layout = new TextLayout(iterator, deviceFRC);
|
|
AttributedCharacterIterator trimmedIt =
|
|
getTrimmedTrailingSpacesIterator(iterator);
|
|
if (trimmedIt != null) {
|
|
float screenWidth = new TextLayout(trimmedIt, frc).
|
|
getAdvance();
|
|
layout = layout.getJustifiedLayout(screenWidth);
|
|
}
|
|
} else {
|
|
layout = new TextLayout(iterator, frc);
|
|
}
|
|
} else {
|
|
layout = new TextLayout(iterator, frc);
|
|
}
|
|
layout.draw(g2d, x, y);
|
|
retVal = layout.getAdvance();
|
|
}
|
|
|
|
if (isPrinting) {
|
|
g.setColor(col);
|
|
}
|
|
|
|
return retVal;
|
|
}
|
|
|
|
/**
|
|
* This method should be used for drawing a borders over a filled rectangle.
|
|
* Draws vertical line, using the current color, between the points {@code
|
|
* (x, y1)} and {@code (x, y2)} in graphics context's coordinate system.
|
|
* Note: it use {@code Graphics.fillRect()} internally.
|
|
*
|
|
* @param g Graphics to draw the line to.
|
|
* @param x the <i>x</i> coordinate.
|
|
* @param y1 the first point's <i>y</i> coordinate.
|
|
* @param y2 the second point's <i>y</i> coordinate.
|
|
*/
|
|
public static void drawVLine(Graphics g, int x, int y1, int y2) {
|
|
if (y2 < y1) {
|
|
final int temp = y2;
|
|
y2 = y1;
|
|
y1 = temp;
|
|
}
|
|
g.fillRect(x, y1, 1, y2 - y1 + 1);
|
|
}
|
|
|
|
/**
|
|
* This method should be used for drawing a borders over a filled rectangle.
|
|
* Draws horizontal line, using the current color, between the points {@code
|
|
* (x1, y)} and {@code (x2, y)} in graphics context's coordinate system.
|
|
* Note: it use {@code Graphics.fillRect()} internally.
|
|
*
|
|
* @param g Graphics to draw the line to.
|
|
* @param x1 the first point's <i>x</i> coordinate.
|
|
* @param x2 the second point's <i>x</i> coordinate.
|
|
* @param y the <i>y</i> coordinate.
|
|
*/
|
|
public static void drawHLine(Graphics g, int x1, int x2, int y) {
|
|
if (x2 < x1) {
|
|
final int temp = x2;
|
|
x2 = x1;
|
|
x1 = temp;
|
|
}
|
|
g.fillRect(x1, y, x2 - x1 + 1, 1);
|
|
}
|
|
|
|
/**
|
|
* This method should be used for drawing a borders over a filled rectangle.
|
|
* Draws the outline of the specified rectangle. The left and right edges of
|
|
* the rectangle are at {@code x} and {@code x + w}. The top and bottom
|
|
* edges are at {@code y} and {@code y + h}. The rectangle is drawn using
|
|
* the graphics context's current color. Note: it use {@code
|
|
* Graphics.fillRect()} internally.
|
|
*
|
|
* @param g Graphics to draw the rectangle to.
|
|
* @param x the <i>x</i> coordinate of the rectangle to be drawn.
|
|
* @param y the <i>y</i> coordinate of the rectangle to be drawn.
|
|
* @param w the w of the rectangle to be drawn.
|
|
* @param h the h of the rectangle to be drawn.
|
|
* @see SwingUtilities2#drawVLine(java.awt.Graphics, int, int, int)
|
|
* @see SwingUtilities2#drawHLine(java.awt.Graphics, int, int, int)
|
|
*/
|
|
public static void drawRect(Graphics g, int x, int y, int w, int h) {
|
|
if (w < 0 || h < 0) {
|
|
return;
|
|
}
|
|
|
|
if (h == 0 || w == 0) {
|
|
g.fillRect(x, y, w + 1, h + 1);
|
|
} else {
|
|
g.fillRect(x, y, w, 1);
|
|
g.fillRect(x + w, y, 1, h);
|
|
g.fillRect(x + 1, y + h, w, 1);
|
|
g.fillRect(x, y + 1, 1, h);
|
|
}
|
|
}
|
|
|
|
private static TextLayout createTextLayout(JComponent c, String s,
|
|
Font f, FontRenderContext frc) {
|
|
Object shaper = (c == null ?
|
|
null : c.getClientProperty(TextAttribute.NUMERIC_SHAPING));
|
|
if (shaper == null) {
|
|
return new TextLayout(s, f, frc);
|
|
} else {
|
|
Map<TextAttribute, Object> a = new HashMap<TextAttribute, Object>();
|
|
a.put(TextAttribute.FONT, f);
|
|
a.put(TextAttribute.NUMERIC_SHAPING, shaper);
|
|
return new TextLayout(s, a, frc);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Checks if two given FontRenderContexts are compatible for printing.
|
|
* We can't just use equals as we want to exclude from the comparison :
|
|
* + whether AA is set as irrelevant for printing and shouldn't affect
|
|
* printed metrics anyway
|
|
* + any translation component in the transform of either FRC, as it
|
|
* does not affect metrics.
|
|
* Compatible means no special handling needed for text painting
|
|
*/
|
|
private static boolean
|
|
isFontRenderContextPrintCompatible(FontRenderContext frc1,
|
|
FontRenderContext frc2) {
|
|
|
|
if (frc1 == frc2) {
|
|
return true;
|
|
}
|
|
|
|
if (frc1 == null || frc2 == null) { // not supposed to happen
|
|
return false;
|
|
}
|
|
|
|
if (frc1.getFractionalMetricsHint() !=
|
|
frc2.getFractionalMetricsHint()) {
|
|
return false;
|
|
}
|
|
|
|
/* If both are identity, return true */
|
|
if (!frc1.isTransformed() && !frc2.isTransformed()) {
|
|
return true;
|
|
}
|
|
|
|
/* That's the end of the cheap tests, need to get and compare
|
|
* the transform matrices. We don't care about the translation
|
|
* components, so return true if they are otherwise identical.
|
|
*/
|
|
double[] mat1 = new double[4];
|
|
double[] mat2 = new double[4];
|
|
frc1.getTransform().getMatrix(mat1);
|
|
frc2.getTransform().getMatrix(mat2);
|
|
return
|
|
mat1[0] == mat2[0] &&
|
|
mat1[1] == mat2[1] &&
|
|
mat1[2] == mat2[2] &&
|
|
mat1[3] == mat2[3];
|
|
}
|
|
|
|
/*
|
|
* Tries it best to get Graphics2D out of the given Graphics
|
|
* returns null if can not derive it.
|
|
*/
|
|
public static Graphics2D getGraphics2D(Graphics g) {
|
|
if (g instanceof Graphics2D) {
|
|
return (Graphics2D) g;
|
|
} else if (g instanceof ProxyPrintGraphics) {
|
|
return (Graphics2D)(((ProxyPrintGraphics)g).getGraphics());
|
|
} else {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Returns FontRenderContext associated with Component.
|
|
* FontRenderContext from Component.getFontMetrics is associated
|
|
* with the component.
|
|
*
|
|
* Uses Component.getFontMetrics to get the FontRenderContext from.
|
|
* see JComponent.getFontMetrics and TextLayoutStrategy.java
|
|
*/
|
|
public static FontRenderContext getFontRenderContext(Component c) {
|
|
assert c != null;
|
|
if (c == null) {
|
|
return DEFAULT_FRC;
|
|
} else {
|
|
return c.getFontMetrics(c.getFont()).getFontRenderContext();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* A convenience method to get FontRenderContext.
|
|
* Returns the FontRenderContext for the passed in FontMetrics or
|
|
* for the passed in Component if FontMetrics is null
|
|
*/
|
|
private static FontRenderContext getFontRenderContext(Component c, FontMetrics fm) {
|
|
assert fm != null || c!= null;
|
|
return (fm != null) ? fm.getFontRenderContext()
|
|
: getFontRenderContext(c);
|
|
}
|
|
|
|
/*
|
|
* This method is to be used only for JComponent.getFontMetrics.
|
|
* In all other places to get FontMetrics we need to use
|
|
* JComponent.getFontMetrics.
|
|
*
|
|
*/
|
|
public static FontMetrics getFontMetrics(JComponent c, Font font) {
|
|
FontRenderContext frc = getFRCProperty(c);
|
|
if (frc == null) {
|
|
frc = DEFAULT_FRC;
|
|
}
|
|
return FontDesignMetrics.getMetrics(font, frc);
|
|
}
|
|
|
|
|
|
/* Get any FontRenderContext associated with a JComponent
|
|
* - may return null
|
|
*/
|
|
private static FontRenderContext getFRCProperty(JComponent c) {
|
|
if (c != null) {
|
|
AATextInfo info =
|
|
(AATextInfo)c.getClientProperty(AA_TEXT_PROPERTY_KEY);
|
|
if (info != null) {
|
|
return info.frc;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/*
|
|
* returns true if the Graphics is print Graphics
|
|
* false otherwise
|
|
*/
|
|
static boolean isPrinting(Graphics g) {
|
|
return (g instanceof PrinterGraphics || g instanceof PrintGraphics);
|
|
}
|
|
|
|
private static String trimTrailingSpaces(String s) {
|
|
int i = s.length() - 1;
|
|
while(i >= 0 && Character.isWhitespace(s.charAt(i))) {
|
|
i--;
|
|
}
|
|
return s.substring(0, i + 1);
|
|
}
|
|
|
|
private static AttributedCharacterIterator getTrimmedTrailingSpacesIterator
|
|
(AttributedCharacterIterator iterator) {
|
|
int curIdx = iterator.getIndex();
|
|
|
|
char c = iterator.last();
|
|
while(c != CharacterIterator.DONE && Character.isWhitespace(c)) {
|
|
c = iterator.previous();
|
|
}
|
|
|
|
if (c != CharacterIterator.DONE) {
|
|
int endIdx = iterator.getIndex();
|
|
|
|
if (endIdx == iterator.getEndIndex() - 1) {
|
|
iterator.setIndex(curIdx);
|
|
return iterator;
|
|
} else {
|
|
AttributedString trimmedText = new AttributedString(iterator,
|
|
iterator.getBeginIndex(), endIdx + 1);
|
|
return trimmedText.getIterator();
|
|
}
|
|
} else {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Determines whether the SelectedTextColor should be used for painting text
|
|
* foreground for the specified highlight.
|
|
*
|
|
* Returns true only if the highlight painter for the specified highlight
|
|
* is the swing painter (whether inner class of javax.swing.text.DefaultHighlighter
|
|
* or com.sun.java.swing.plaf.windows.WindowsTextUI) and its background color
|
|
* is null or equals to the selection color of the text component.
|
|
*
|
|
* This is a hack for fixing both bugs 4761990 and 5003294
|
|
*/
|
|
public static boolean useSelectedTextColor(Highlighter.Highlight h, JTextComponent c) {
|
|
Highlighter.HighlightPainter painter = h.getPainter();
|
|
String painterClass = painter.getClass().getName();
|
|
if (painterClass.indexOf("javax.swing.text.DefaultHighlighter") != 0 &&
|
|
painterClass.indexOf("com.sun.java.swing.plaf.windows.WindowsTextUI") != 0) {
|
|
return false;
|
|
}
|
|
try {
|
|
DefaultHighlighter.DefaultHighlightPainter defPainter =
|
|
(DefaultHighlighter.DefaultHighlightPainter) painter;
|
|
if (defPainter.getColor() != null &&
|
|
!defPainter.getColor().equals(c.getSelectionColor())) {
|
|
return false;
|
|
}
|
|
} catch (ClassCastException e) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* LSBCacheEntry is used to cache the left side bearing (lsb) for
|
|
* a particular <code>Font</code> and <code>FontRenderContext</code>.
|
|
* This only caches characters that fall in the range
|
|
* <code>MIN_CHAR_INDEX</code> to <code>MAX_CHAR_INDEX</code>.
|
|
*/
|
|
private static class LSBCacheEntry {
|
|
// Used to indicate a particular entry in lsb has not been set.
|
|
private static final byte UNSET = Byte.MAX_VALUE;
|
|
// Used in creating a GlyphVector to get the lsb
|
|
private static final char[] oneChar = new char[1];
|
|
|
|
private byte[] lsbCache;
|
|
private Font font;
|
|
private FontRenderContext frc;
|
|
|
|
|
|
public LSBCacheEntry(FontRenderContext frc, Font font) {
|
|
lsbCache = new byte[MAX_CHAR_INDEX - MIN_CHAR_INDEX];
|
|
reset(frc, font);
|
|
|
|
}
|
|
|
|
public void reset(FontRenderContext frc, Font font) {
|
|
this.font = font;
|
|
this.frc = frc;
|
|
for (int counter = lsbCache.length - 1; counter >= 0; counter--) {
|
|
lsbCache[counter] = UNSET;
|
|
}
|
|
}
|
|
|
|
public int getLeftSideBearing(char aChar) {
|
|
int index = aChar - MIN_CHAR_INDEX;
|
|
assert (index >= 0 && index < (MAX_CHAR_INDEX - MIN_CHAR_INDEX));
|
|
byte lsb = lsbCache[index];
|
|
if (lsb == UNSET) {
|
|
oneChar[0] = aChar;
|
|
GlyphVector gv = font.createGlyphVector(frc, oneChar);
|
|
lsb = (byte) gv.getGlyphPixelBounds(0, frc, 0f, 0f).x;
|
|
if (lsb < 0) {
|
|
/* HRGB/HBGR LCD glyph images will always have a pixel
|
|
* on the left used in colour fringe reduction.
|
|
* Text rendering positions this correctly but here
|
|
* we are using the glyph image to adjust that position
|
|
* so must account for it.
|
|
*/
|
|
Object aaHint = frc.getAntiAliasingHint();
|
|
if (aaHint == VALUE_TEXT_ANTIALIAS_LCD_HRGB ||
|
|
aaHint == VALUE_TEXT_ANTIALIAS_LCD_HBGR) {
|
|
lsb++;
|
|
}
|
|
}
|
|
lsbCache[index] = lsb;
|
|
}
|
|
return lsb;
|
|
|
|
|
|
}
|
|
|
|
public boolean equals(Object entry) {
|
|
if (entry == this) {
|
|
return true;
|
|
}
|
|
if (!(entry instanceof LSBCacheEntry)) {
|
|
return false;
|
|
}
|
|
LSBCacheEntry oEntry = (LSBCacheEntry) entry;
|
|
return (font.equals(oEntry.font) &&
|
|
frc.equals(oEntry.frc));
|
|
}
|
|
|
|
public int hashCode() {
|
|
int result = 17;
|
|
if (font != null) {
|
|
result = 37 * result + font.hashCode();
|
|
}
|
|
if (frc != null) {
|
|
result = 37 * result + frc.hashCode();
|
|
}
|
|
return result;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* here goes the fix for 4856343 [Problem with applet interaction
|
|
* with system selection clipboard]
|
|
*
|
|
* NOTE. In case isTrustedContext() no checking
|
|
* are to be performed
|
|
*/
|
|
|
|
/**
|
|
* checks the security permissions for accessing system clipboard
|
|
*
|
|
* for untrusted context (see isTrustedContext) checks the
|
|
* permissions for the current event being handled
|
|
*
|
|
*/
|
|
public static boolean canAccessSystemClipboard() {
|
|
boolean canAccess = false;
|
|
if (!GraphicsEnvironment.isHeadless()) {
|
|
SecurityManager sm = System.getSecurityManager();
|
|
if (sm == null) {
|
|
canAccess = true;
|
|
} else {
|
|
try {
|
|
sm.checkPermission(SecurityConstants.AWT.ACCESS_CLIPBOARD_PERMISSION);
|
|
canAccess = true;
|
|
} catch (SecurityException e) {
|
|
}
|
|
if (canAccess && ! isTrustedContext()) {
|
|
canAccess = canCurrentEventAccessSystemClipboard(true);
|
|
}
|
|
}
|
|
}
|
|
return canAccess;
|
|
}
|
|
/**
|
|
* Returns true if EventQueue.getCurrentEvent() has the permissions to
|
|
* access the system clipboard
|
|
*/
|
|
public static boolean canCurrentEventAccessSystemClipboard() {
|
|
return isTrustedContext()
|
|
|| canCurrentEventAccessSystemClipboard(false);
|
|
}
|
|
|
|
/**
|
|
* Returns true if the given event has permissions to access the
|
|
* system clipboard
|
|
*
|
|
* @param e AWTEvent to check
|
|
*/
|
|
public static boolean canEventAccessSystemClipboard(AWTEvent e) {
|
|
return isTrustedContext()
|
|
|| canEventAccessSystemClipboard(e, false);
|
|
}
|
|
|
|
/**
|
|
* returns canAccessSystemClipboard field from InputEvent
|
|
*
|
|
* @param ie InputEvent to get the field from
|
|
*/
|
|
private static synchronized boolean inputEvent_canAccessSystemClipboard(InputEvent ie) {
|
|
if (inputEvent_CanAccessSystemClipboard_Field == null) {
|
|
inputEvent_CanAccessSystemClipboard_Field =
|
|
AccessController.doPrivileged(
|
|
new java.security.PrivilegedAction<Field>() {
|
|
public Field run() {
|
|
try {
|
|
Field field = InputEvent.class.
|
|
getDeclaredField("canAccessSystemClipboard");
|
|
field.setAccessible(true);
|
|
return field;
|
|
} catch (SecurityException e) {
|
|
} catch (NoSuchFieldException e) {
|
|
}
|
|
return null;
|
|
}
|
|
});
|
|
}
|
|
if (inputEvent_CanAccessSystemClipboard_Field == null) {
|
|
return false;
|
|
}
|
|
boolean ret = false;
|
|
try {
|
|
ret = inputEvent_CanAccessSystemClipboard_Field.
|
|
getBoolean(ie);
|
|
} catch(IllegalAccessException e) {
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Returns true if the given event is corrent gesture for
|
|
* accessing clipboard
|
|
*
|
|
* @param ie InputEvent to check
|
|
*/
|
|
|
|
private static boolean isAccessClipboardGesture(InputEvent ie) {
|
|
boolean allowedGesture = false;
|
|
if (ie instanceof KeyEvent) { //we can validate only keyboard gestures
|
|
KeyEvent ke = (KeyEvent)ie;
|
|
int keyCode = ke.getKeyCode();
|
|
int keyModifiers = ke.getModifiers();
|
|
switch(keyCode) {
|
|
case KeyEvent.VK_C:
|
|
case KeyEvent.VK_V:
|
|
case KeyEvent.VK_X:
|
|
allowedGesture = (keyModifiers == InputEvent.CTRL_MASK);
|
|
break;
|
|
case KeyEvent.VK_INSERT:
|
|
allowedGesture = (keyModifiers == InputEvent.CTRL_MASK ||
|
|
keyModifiers == InputEvent.SHIFT_MASK);
|
|
break;
|
|
case KeyEvent.VK_COPY:
|
|
case KeyEvent.VK_PASTE:
|
|
case KeyEvent.VK_CUT:
|
|
allowedGesture = true;
|
|
break;
|
|
case KeyEvent.VK_DELETE:
|
|
allowedGesture = ( keyModifiers == InputEvent.SHIFT_MASK);
|
|
break;
|
|
}
|
|
}
|
|
return allowedGesture;
|
|
}
|
|
|
|
/**
|
|
* Returns true if e has the permissions to
|
|
* access the system clipboard and if it is allowed gesture (if
|
|
* checkGesture is true)
|
|
*
|
|
* @param e AWTEvent to check
|
|
* @param checkGesture boolean
|
|
*/
|
|
private static boolean canEventAccessSystemClipboard(AWTEvent e,
|
|
boolean checkGesture) {
|
|
if (EventQueue.isDispatchThread()) {
|
|
/*
|
|
* Checking event permissions makes sense only for event
|
|
* dispathing thread
|
|
*/
|
|
if (e instanceof InputEvent
|
|
&& (! checkGesture || isAccessClipboardGesture((InputEvent)e))) {
|
|
return inputEvent_canAccessSystemClipboard((InputEvent)e);
|
|
} else {
|
|
return false;
|
|
}
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Utility method that throws SecurityException if SecurityManager is set
|
|
* and modifiers are not public
|
|
*
|
|
* @param modifiers a set of modifiers
|
|
*/
|
|
public static void checkAccess(int modifiers) {
|
|
if (System.getSecurityManager() != null
|
|
&& !Modifier.isPublic(modifiers)) {
|
|
throw new SecurityException("Resource is not accessible");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns true if EventQueue.getCurrentEvent() has the permissions to
|
|
* access the system clipboard and if it is allowed gesture (if
|
|
* checkGesture true)
|
|
*
|
|
* @param checkGesture boolean
|
|
*/
|
|
private static boolean canCurrentEventAccessSystemClipboard(boolean
|
|
checkGesture) {
|
|
AWTEvent event = EventQueue.getCurrentEvent();
|
|
return canEventAccessSystemClipboard(event, checkGesture);
|
|
}
|
|
|
|
/**
|
|
* see RFE 5012841 [Per AppContect security permissions] for the
|
|
* details
|
|
*
|
|
*/
|
|
private static boolean isTrustedContext() {
|
|
return (System.getSecurityManager() == null)
|
|
|| (AppContext.getAppContext().
|
|
get(UntrustedClipboardAccess) == null);
|
|
}
|
|
|
|
public static String displayPropertiesToCSS(Font font, Color fg) {
|
|
StringBuffer rule = new StringBuffer("body {");
|
|
if (font != null) {
|
|
rule.append(" font-family: ");
|
|
rule.append(font.getFamily());
|
|
rule.append(" ; ");
|
|
rule.append(" font-size: ");
|
|
rule.append(font.getSize());
|
|
rule.append("pt ;");
|
|
if (font.isBold()) {
|
|
rule.append(" font-weight: 700 ; ");
|
|
}
|
|
if (font.isItalic()) {
|
|
rule.append(" font-style: italic ; ");
|
|
}
|
|
}
|
|
if (fg != null) {
|
|
rule.append(" color: #");
|
|
if (fg.getRed() < 16) {
|
|
rule.append('0');
|
|
}
|
|
rule.append(Integer.toHexString(fg.getRed()));
|
|
if (fg.getGreen() < 16) {
|
|
rule.append('0');
|
|
}
|
|
rule.append(Integer.toHexString(fg.getGreen()));
|
|
if (fg.getBlue() < 16) {
|
|
rule.append('0');
|
|
}
|
|
rule.append(Integer.toHexString(fg.getBlue()));
|
|
rule.append(" ; ");
|
|
}
|
|
rule.append(" }");
|
|
return rule.toString();
|
|
}
|
|
|
|
/**
|
|
* Utility method that creates a <code>UIDefaults.LazyValue</code> that
|
|
* creates an <code>ImageIcon</code> <code>UIResource</code> for the
|
|
* specified image file name. The image is loaded using
|
|
* <code>getResourceAsStream</code>, starting with a call to that method
|
|
* on the base class parameter. If it cannot be found, searching will
|
|
* continue through the base class' inheritance hierarchy, up to and
|
|
* including <code>rootClass</code>.
|
|
*
|
|
* @param baseClass the first class to use in searching for the resource
|
|
* @param rootClass an ancestor of <code>baseClass</code> to finish the
|
|
* search at
|
|
* @param imageFile the name of the file to be found
|
|
* @return a lazy value that creates the <code>ImageIcon</code>
|
|
* <code>UIResource</code> for the image,
|
|
* or null if it cannot be found
|
|
*/
|
|
public static Object makeIcon(final Class<?> baseClass,
|
|
final Class<?> rootClass,
|
|
final String imageFile) {
|
|
|
|
return new UIDefaults.LazyValue() {
|
|
public Object createValue(UIDefaults table) {
|
|
/* Copy resource into a byte array. This is
|
|
* necessary because several browsers consider
|
|
* Class.getResource a security risk because it
|
|
* can be used to load additional classes.
|
|
* Class.getResourceAsStream just returns raw
|
|
* bytes, which we can convert to an image.
|
|
*/
|
|
byte[] buffer =
|
|
java.security.AccessController.doPrivileged(
|
|
new java.security.PrivilegedAction<byte[]>() {
|
|
public byte[] run() {
|
|
try {
|
|
InputStream resource = null;
|
|
Class<?> srchClass = baseClass;
|
|
|
|
while (srchClass != null) {
|
|
resource = srchClass.getResourceAsStream(imageFile);
|
|
|
|
if (resource != null || srchClass == rootClass) {
|
|
break;
|
|
}
|
|
|
|
srchClass = srchClass.getSuperclass();
|
|
}
|
|
|
|
if (resource == null) {
|
|
return null;
|
|
}
|
|
|
|
BufferedInputStream in =
|
|
new BufferedInputStream(resource);
|
|
ByteArrayOutputStream out =
|
|
new ByteArrayOutputStream(1024);
|
|
byte[] buffer = new byte[1024];
|
|
int n;
|
|
while ((n = in.read(buffer)) > 0) {
|
|
out.write(buffer, 0, n);
|
|
}
|
|
in.close();
|
|
out.flush();
|
|
return out.toByteArray();
|
|
} catch (IOException ioe) {
|
|
System.err.println(ioe.toString());
|
|
}
|
|
return null;
|
|
}
|
|
});
|
|
|
|
if (buffer == null) {
|
|
return null;
|
|
}
|
|
if (buffer.length == 0) {
|
|
System.err.println("warning: " + imageFile +
|
|
" is zero-length");
|
|
return null;
|
|
}
|
|
|
|
return new ImageIconUIResource(buffer);
|
|
}
|
|
};
|
|
}
|
|
|
|
/* Used to help decide if AA text rendering should be used, so
|
|
* this local display test should be additionally qualified
|
|
* against whether we have XRender support on both ends of the wire,
|
|
* as with that support remote performance may be good enough to turn
|
|
* on by default. An additional complication there is XRender does not
|
|
* appear capable of performing gamma correction needed for LCD text.
|
|
*/
|
|
public static boolean isLocalDisplay() {
|
|
boolean isLocal;
|
|
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
|
|
if (ge instanceof SunGraphicsEnvironment) {
|
|
isLocal = ((SunGraphicsEnvironment) ge).isDisplayLocal();
|
|
} else {
|
|
isLocal = true;
|
|
}
|
|
return isLocal;
|
|
}
|
|
|
|
/**
|
|
* Returns an integer from the defaults table. If <code>key</code> does
|
|
* not map to a valid <code>Integer</code>, or can not be convered from
|
|
* a <code>String</code> to an integer, the value 0 is returned.
|
|
*
|
|
* @param key an <code>Object</code> specifying the int.
|
|
* @return the int
|
|
*/
|
|
public static int getUIDefaultsInt(Object key) {
|
|
return getUIDefaultsInt(key, 0);
|
|
}
|
|
|
|
/**
|
|
* Returns an integer from the defaults table that is appropriate
|
|
* for the given locale. If <code>key</code> does not map to a valid
|
|
* <code>Integer</code>, or can not be convered from a <code>String</code>
|
|
* to an integer, the value 0 is returned.
|
|
*
|
|
* @param key an <code>Object</code> specifying the int. Returned value
|
|
* is 0 if <code>key</code> is not available,
|
|
* @param l the <code>Locale</code> for which the int is desired
|
|
* @return the int
|
|
*/
|
|
public static int getUIDefaultsInt(Object key, Locale l) {
|
|
return getUIDefaultsInt(key, l, 0);
|
|
}
|
|
|
|
/**
|
|
* Returns an integer from the defaults table. If <code>key</code> does
|
|
* not map to a valid <code>Integer</code>, or can not be convered from
|
|
* a <code>String</code> to an integer, <code>default</code> is
|
|
* returned.
|
|
*
|
|
* @param key an <code>Object</code> specifying the int. Returned value
|
|
* is 0 if <code>key</code> is not available,
|
|
* @param defaultValue Returned value if <code>key</code> is not available,
|
|
* or is not an Integer
|
|
* @return the int
|
|
*/
|
|
public static int getUIDefaultsInt(Object key, int defaultValue) {
|
|
return getUIDefaultsInt(key, null, defaultValue);
|
|
}
|
|
|
|
/**
|
|
* Returns an integer from the defaults table that is appropriate
|
|
* for the given locale. If <code>key</code> does not map to a valid
|
|
* <code>Integer</code>, or can not be convered from a <code>String</code>
|
|
* to an integer, <code>default</code> is returned.
|
|
*
|
|
* @param key an <code>Object</code> specifying the int. Returned value
|
|
* is 0 if <code>key</code> is not available,
|
|
* @param l the <code>Locale</code> for which the int is desired
|
|
* @param defaultValue Returned value if <code>key</code> is not available,
|
|
* or is not an Integer
|
|
* @return the int
|
|
*/
|
|
public static int getUIDefaultsInt(Object key, Locale l, int defaultValue) {
|
|
Object value = UIManager.get(key, l);
|
|
|
|
if (value instanceof Integer) {
|
|
return ((Integer)value).intValue();
|
|
}
|
|
if (value instanceof String) {
|
|
try {
|
|
return Integer.parseInt((String)value);
|
|
} catch (NumberFormatException nfe) {}
|
|
}
|
|
return defaultValue;
|
|
}
|
|
|
|
// At this point we need this method here. But we assume that there
|
|
// will be a common method for this purpose in the future releases.
|
|
public static Component compositeRequestFocus(Component component) {
|
|
if (component instanceof Container) {
|
|
Container container = (Container)component;
|
|
if (container.isFocusCycleRoot()) {
|
|
FocusTraversalPolicy policy = container.getFocusTraversalPolicy();
|
|
Component comp = policy.getDefaultComponent(container);
|
|
if (comp!=null) {
|
|
comp.requestFocus();
|
|
return comp;
|
|
}
|
|
}
|
|
Container rootAncestor = container.getFocusCycleRootAncestor();
|
|
if (rootAncestor!=null) {
|
|
FocusTraversalPolicy policy = rootAncestor.getFocusTraversalPolicy();
|
|
Component comp = policy.getComponentAfter(rootAncestor, container);
|
|
|
|
if (comp!=null && SwingUtilities.isDescendingFrom(comp, container)) {
|
|
comp.requestFocus();
|
|
return comp;
|
|
}
|
|
}
|
|
}
|
|
if (component.isFocusable()) {
|
|
component.requestFocus();
|
|
return component;
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Change focus to the visible component in {@code JTabbedPane}.
|
|
* This is not a general-purpose method and is here only to permit
|
|
* sharing code.
|
|
*/
|
|
public static boolean tabbedPaneChangeFocusTo(Component comp) {
|
|
if (comp != null) {
|
|
if (comp.isFocusTraversable()) {
|
|
SwingUtilities2.compositeRequestFocus(comp);
|
|
return true;
|
|
} else if (comp instanceof JComponent
|
|
&& ((JComponent)comp).requestDefaultFocus()) {
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Submits a value-returning task for execution on the EDT and
|
|
* returns a Future representing the pending results of the task.
|
|
*
|
|
* @param task the task to submit
|
|
* @return a Future representing pending completion of the task
|
|
* @throws NullPointerException if the task is null
|
|
*/
|
|
public static <V> Future<V> submit(Callable<V> task) {
|
|
if (task == null) {
|
|
throw new NullPointerException();
|
|
}
|
|
FutureTask<V> future = new FutureTask<V>(task);
|
|
execute(future);
|
|
return future;
|
|
}
|
|
|
|
/**
|
|
* Submits a Runnable task for execution on the EDT and returns a
|
|
* Future representing that task.
|
|
*
|
|
* @param task the task to submit
|
|
* @param result the result to return upon successful completion
|
|
* @return a Future representing pending completion of the task,
|
|
* and whose <tt>get()</tt> method will return the given
|
|
* result value upon completion
|
|
* @throws NullPointerException if the task is null
|
|
*/
|
|
public static <V> Future<V> submit(Runnable task, V result) {
|
|
if (task == null) {
|
|
throw new NullPointerException();
|
|
}
|
|
FutureTask<V> future = new FutureTask<V>(task, result);
|
|
execute(future);
|
|
return future;
|
|
}
|
|
|
|
/**
|
|
* Sends a Runnable to the EDT for the execution.
|
|
*/
|
|
private static void execute(Runnable command) {
|
|
SwingUtilities.invokeLater(command);
|
|
}
|
|
|
|
/**
|
|
* Sets the {@code SKIP_CLICK_COUNT} client property on the component
|
|
* if it is an instance of {@code JTextComponent} with a
|
|
* {@code DefaultCaret}. This property, used for text components acting
|
|
* as editors in a table or tree, tells {@code DefaultCaret} how many
|
|
* clicks to skip before starting selection.
|
|
*/
|
|
public static void setSkipClickCount(Component comp, int count) {
|
|
if (comp instanceof JTextComponent
|
|
&& ((JTextComponent) comp).getCaret() instanceof DefaultCaret) {
|
|
|
|
((JTextComponent) comp).putClientProperty(SKIP_CLICK_COUNT, count);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return the MouseEvent's click count, possibly reduced by the value of
|
|
* the component's {@code SKIP_CLICK_COUNT} client property. Clears
|
|
* the {@code SKIP_CLICK_COUNT} property if the mouse event's click count
|
|
* is 1. In order for clearing of the property to work correctly, there
|
|
* must be a mousePressed implementation on the caller with this
|
|
* call as the first line.
|
|
*/
|
|
public static int getAdjustedClickCount(JTextComponent comp, MouseEvent e) {
|
|
int cc = e.getClickCount();
|
|
|
|
if (cc == 1) {
|
|
comp.putClientProperty(SKIP_CLICK_COUNT, null);
|
|
} else {
|
|
Integer sub = (Integer) comp.getClientProperty(SKIP_CLICK_COUNT);
|
|
if (sub != null) {
|
|
return cc - sub;
|
|
}
|
|
}
|
|
|
|
return cc;
|
|
}
|
|
|
|
/**
|
|
* Used by the {@code liesIn} method to return which section
|
|
* the point lies in.
|
|
*
|
|
* @see #liesIn
|
|
*/
|
|
public enum Section {
|
|
|
|
/** The leading section */
|
|
LEADING,
|
|
|
|
/** The middle section */
|
|
MIDDLE,
|
|
|
|
/** The trailing section */
|
|
TRAILING
|
|
}
|
|
|
|
/**
|
|
* This method divides a rectangle into two or three sections along
|
|
* the specified axis and determines which section the given point
|
|
* lies in on that axis; used by drag and drop when calculating drop
|
|
* locations.
|
|
* <p>
|
|
* For two sections, the rectangle is divided equally and the method
|
|
* returns whether the point lies in {@code Section.LEADING} or
|
|
* {@code Section.TRAILING}. For horizontal divisions, the calculation
|
|
* respects component orientation.
|
|
* <p>
|
|
* For three sections, if the rectangle is greater than or equal to
|
|
* 30 pixels in length along the axis, the calculation gives 10 pixels
|
|
* to each of the leading and trailing sections and the remainder to the
|
|
* middle. For smaller sizes, the rectangle is divided equally into three
|
|
* sections.
|
|
* <p>
|
|
* Note: This method assumes that the point is within the bounds of
|
|
* the given rectangle on the specified axis. However, in cases where
|
|
* it isn't, the results still have meaning: {@code Section.MIDDLE}
|
|
* remains the same, {@code Section.LEADING} indicates that the point
|
|
* is in or somewhere before the leading section, and
|
|
* {@code Section.TRAILING} indicates that the point is in or somewhere
|
|
* after the trailing section.
|
|
*
|
|
* @param rect the rectangle
|
|
* @param p the point the check
|
|
* @param horizontal {@code true} to use the horizontal axis,
|
|
* or {@code false} for the vertical axis
|
|
* @param ltr {@code true} for left to right orientation,
|
|
* or {@code false} for right to left orientation;
|
|
* only used for horizontal calculations
|
|
* @param three {@code true} for three sections,
|
|
* or {@code false} for two
|
|
*
|
|
* @return the {@code Section} where the point lies
|
|
*
|
|
* @throws NullPointerException if {@code rect} or {@code p} are
|
|
* {@code null}
|
|
*/
|
|
private static Section liesIn(Rectangle rect, Point p, boolean horizontal,
|
|
boolean ltr, boolean three) {
|
|
|
|
/* beginning of the rectangle on the axis */
|
|
int p0;
|
|
|
|
/* point on the axis we're interested in */
|
|
int pComp;
|
|
|
|
/* length of the rectangle on the axis */
|
|
int length;
|
|
|
|
/* value of ltr if horizontal, else true */
|
|
boolean forward;
|
|
|
|
if (horizontal) {
|
|
p0 = rect.x;
|
|
pComp = p.x;
|
|
length = rect.width;
|
|
forward = ltr;
|
|
} else {
|
|
p0 = rect.y;
|
|
pComp = p.y;
|
|
length = rect.height;
|
|
forward = true;
|
|
}
|
|
|
|
if (three) {
|
|
int boundary = (length >= 30) ? 10 : length / 3;
|
|
|
|
if (pComp < p0 + boundary) {
|
|
return forward ? Section.LEADING : Section.TRAILING;
|
|
} else if (pComp >= p0 + length - boundary) {
|
|
return forward ? Section.TRAILING : Section.LEADING;
|
|
}
|
|
|
|
return Section.MIDDLE;
|
|
} else {
|
|
int middle = p0 + length / 2;
|
|
if (forward) {
|
|
return pComp >= middle ? Section.TRAILING : Section.LEADING;
|
|
} else {
|
|
return pComp < middle ? Section.TRAILING : Section.LEADING;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This method divides a rectangle into two or three sections along
|
|
* the horizontal axis and determines which section the given point
|
|
* lies in; used by drag and drop when calculating drop locations.
|
|
* <p>
|
|
* See the documentation for {@link #liesIn} for more information
|
|
* on how the section is calculated.
|
|
*
|
|
* @param rect the rectangle
|
|
* @param p the point the check
|
|
* @param ltr {@code true} for left to right orientation,
|
|
* or {@code false} for right to left orientation
|
|
* @param three {@code true} for three sections,
|
|
* or {@code false} for two
|
|
*
|
|
* @return the {@code Section} where the point lies
|
|
*
|
|
* @throws NullPointerException if {@code rect} or {@code p} are
|
|
* {@code null}
|
|
*/
|
|
public static Section liesInHorizontal(Rectangle rect, Point p,
|
|
boolean ltr, boolean three) {
|
|
return liesIn(rect, p, true, ltr, three);
|
|
}
|
|
|
|
/**
|
|
* This method divides a rectangle into two or three sections along
|
|
* the vertical axis and determines which section the given point
|
|
* lies in; used by drag and drop when calculating drop locations.
|
|
* <p>
|
|
* See the documentation for {@link #liesIn} for more information
|
|
* on how the section is calculated.
|
|
*
|
|
* @param rect the rectangle
|
|
* @param p the point the check
|
|
* @param three {@code true} for three sections,
|
|
* or {@code false} for two
|
|
*
|
|
* @return the {@code Section} where the point lies
|
|
*
|
|
* @throws NullPointerException if {@code rect} or {@code p} are
|
|
* {@code null}
|
|
*/
|
|
public static Section liesInVertical(Rectangle rect, Point p,
|
|
boolean three) {
|
|
return liesIn(rect, p, false, false, three);
|
|
}
|
|
|
|
/**
|
|
* Maps the index of the column in the view at
|
|
* {@code viewColumnIndex} to the index of the column
|
|
* in the table model. Returns the index of the corresponding
|
|
* column in the model. If {@code viewColumnIndex}
|
|
* is less than zero, returns {@code viewColumnIndex}.
|
|
*
|
|
* @param cm the table model
|
|
* @param viewColumnIndex the index of the column in the view
|
|
* @return the index of the corresponding column in the model
|
|
*
|
|
* @see JTable#convertColumnIndexToModel(int)
|
|
* @see javax.swing.plaf.basic.BasicTableHeaderUI
|
|
*/
|
|
public static int convertColumnIndexToModel(TableColumnModel cm,
|
|
int viewColumnIndex) {
|
|
if (viewColumnIndex < 0) {
|
|
return viewColumnIndex;
|
|
}
|
|
return cm.getColumn(viewColumnIndex).getModelIndex();
|
|
}
|
|
|
|
/**
|
|
* Maps the index of the column in the {@code cm} at
|
|
* {@code modelColumnIndex} to the index of the column
|
|
* in the view. Returns the index of the
|
|
* corresponding column in the view; returns {@code -1} if this column
|
|
* is not being displayed. If {@code modelColumnIndex} is less than zero,
|
|
* returns {@code modelColumnIndex}.
|
|
*
|
|
* @param cm the table model
|
|
* @param modelColumnIndex the index of the column in the model
|
|
* @return the index of the corresponding column in the view
|
|
*
|
|
* @see JTable#convertColumnIndexToView(int)
|
|
* @see javax.swing.plaf.basic.BasicTableHeaderUI
|
|
*/
|
|
public static int convertColumnIndexToView(TableColumnModel cm,
|
|
int modelColumnIndex) {
|
|
if (modelColumnIndex < 0) {
|
|
return modelColumnIndex;
|
|
}
|
|
for (int column = 0; column < cm.getColumnCount(); column++) {
|
|
if (cm.getColumn(column).getModelIndex() == modelColumnIndex) {
|
|
return column;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/**
|
|
* Sets the InputEvent.ALT_GRAPH mask on any modifier passed to the function
|
|
* @param modifier the modifier passed
|
|
* @return the modifier retiurned with ALT_GRAPH flag set
|
|
*/
|
|
public static int setAltGraphMask(int modifier) {
|
|
return (modifier | InputEvent.ALT_GRAPH_DOWN_MASK);
|
|
}
|
|
|
|
public static int getSystemMnemonicKeyMask() {
|
|
Toolkit toolkit = Toolkit.getDefaultToolkit();
|
|
if (toolkit instanceof SunToolkit) {
|
|
return ((SunToolkit) toolkit).getFocusAcceleratorKeyMask();
|
|
}
|
|
return InputEvent.ALT_MASK;
|
|
}
|
|
|
|
/**
|
|
* Returns the {@link TreePath} that identifies the changed nodes.
|
|
*
|
|
* @param event changes in a tree model
|
|
* @param model corresponing tree model
|
|
* @return the path to the changed nodes
|
|
*/
|
|
public static TreePath getTreePath(TreeModelEvent event, TreeModel model) {
|
|
TreePath path = event.getTreePath();
|
|
if ((path == null) && (model != null)) {
|
|
Object root = model.getRoot();
|
|
if (root != null) {
|
|
path = new TreePath(root);
|
|
}
|
|
}
|
|
return path;
|
|
}
|
|
|
|
/**
|
|
* Used to listen to "blit" repaints in RepaintManager.
|
|
*/
|
|
public interface RepaintListener {
|
|
void repaintPerformed(JComponent c, int x, int y, int w, int h);
|
|
}
|
|
}
|