JDK 11 java.desktop.jmod - Desktop Module
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⏎ java/awt/AWTKeyStroke.java
/*
* Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
*
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*
*
*
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*
*/
package java.awt;
import java.awt.event.KeyEvent;
import sun.awt.AppContext;
import java.awt.event.InputEvent;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.StringTokenizer;
import java.io.Serializable;
import java.lang.reflect.Modifier;
import java.lang.reflect.Field;
import sun.swing.SwingAccessor;
/**
* An {@code AWTKeyStroke} represents a key action on the
* keyboard, or equivalent input device. {@code AWTKeyStroke}s
* can correspond to only a press or release of a
* particular key, just as {@code KEY_PRESSED} and
* {@code KEY_RELEASED KeyEvent}s do;
* alternately, they can correspond to typing a specific Java character, just
* as {@code KEY_TYPED KeyEvent}s do.
* In all cases, {@code AWTKeyStroke}s can specify modifiers
* (alt, shift, control, meta, altGraph, or a combination thereof) which must be present
* during the action for an exact match.
* <p>
* {@code AWTKeyStrokes} are immutable, and are intended
* to be unique. Client code should never create an
* {@code AWTKeyStroke} on its own, but should instead use
* a variant of {@code getAWTKeyStroke}. Client use of these factory
* methods allows the {@code AWTKeyStroke} implementation
* to cache and share instances efficiently.
*
* @see #getAWTKeyStroke
*
* @author Arnaud Weber
* @author David Mendenhall
* @since 1.4
*/
public class AWTKeyStroke implements Serializable {
static final long serialVersionUID = -6430539691155161871L;
private static Map<String, Integer> modifierKeywords;
/**
* Associates VK_XXX (as a String) with code (as Integer). This is
* done to avoid the overhead of the reflective call to find the
* constant.
*/
private static VKCollection vks;
//A key for the collection of AWTKeyStrokes within AppContext.
private static Object APP_CONTEXT_CACHE_KEY = new Object();
//A key withing the cache
private static AWTKeyStroke APP_CONTEXT_KEYSTROKE_KEY = new AWTKeyStroke();
private char keyChar = KeyEvent.CHAR_UNDEFINED;
private int keyCode = KeyEvent.VK_UNDEFINED;
private int modifiers;
private boolean onKeyRelease;
static {
/* ensure that the necessary native libraries are loaded */
Toolkit.loadLibraries();
}
/**
* Constructs an {@code AWTKeyStroke} with default values.
* The default values used are:
*
* <table class="striped">
* <caption>AWTKeyStroke default values</caption>
* <thead>
* <tr>
* <th scope="col">Property
* <th scope="col">Default Value
* </thead>
* <tbody>
* <tr>
* <th scope="row">Key Char
* <td>{@code KeyEvent.CHAR_UNDEFINED}
* <tr>
* <th scope="row">Key Code
* <td>{@code KeyEvent.VK_UNDEFINED}
* <tr>
* <th scope="row">Modifiers
* <td>none
* <tr>
* <th scope="row">On key release?
* <td>{@code false}
* </tbody>
* </table>
*
* {@code AWTKeyStroke}s should not be constructed
* by client code. Use a variant of {@code getAWTKeyStroke}
* instead.
*
* @see #getAWTKeyStroke
*/
protected AWTKeyStroke() {
}
/**
* Constructs an {@code AWTKeyStroke} with the specified
* values. {@code AWTKeyStroke}s should not be constructed
* by client code. Use a variant of {@code getAWTKeyStroke}
* instead.
*
* @param keyChar the character value for a keyboard key
* @param keyCode the key code for this {@code AWTKeyStroke}
* @param modifiers a bitwise-ored combination of any modifiers
* @param onKeyRelease {@code true} if this
* {@code AWTKeyStroke} corresponds
* to a key release; {@code false} otherwise
* @see #getAWTKeyStroke
*/
protected AWTKeyStroke(char keyChar, int keyCode, int modifiers,
boolean onKeyRelease) {
this.keyChar = keyChar;
this.keyCode = keyCode;
this.modifiers = modifiers;
this.onKeyRelease = onKeyRelease;
}
/**
* The method has no effect and is only left present to avoid introducing
* a binary incompatibility.
*
* @param subclass the new Class of which the factory methods should create
* instances
* @deprecated
*/
@Deprecated
protected static void registerSubclass(Class<?> subclass) {
}
private static synchronized AWTKeyStroke getCachedStroke
(char keyChar, int keyCode, int modifiers, boolean onKeyRelease)
{
@SuppressWarnings("unchecked")
Map<AWTKeyStroke, AWTKeyStroke> cache = (Map)AppContext.getAppContext().get(APP_CONTEXT_CACHE_KEY);
AWTKeyStroke cacheKey = (AWTKeyStroke)AppContext.getAppContext().get(APP_CONTEXT_KEYSTROKE_KEY);
if (cache == null) {
cache = new HashMap<>();
AppContext.getAppContext().put(APP_CONTEXT_CACHE_KEY, cache);
}
if (cacheKey == null) {
cacheKey = SwingAccessor.getKeyStrokeAccessor().create();
AppContext.getAppContext().put(APP_CONTEXT_KEYSTROKE_KEY, cacheKey);
}
cacheKey.keyChar = keyChar;
cacheKey.keyCode = keyCode;
cacheKey.modifiers = mapNewModifiers(mapOldModifiers(modifiers));
cacheKey.onKeyRelease = onKeyRelease;
AWTKeyStroke stroke = cache.get(cacheKey);
if (stroke == null) {
stroke = cacheKey;
cache.put(stroke, stroke);
AppContext.getAppContext().remove(APP_CONTEXT_KEYSTROKE_KEY);
}
return stroke;
}
/**
* Returns a shared instance of an {@code AWTKeyStroke}
* that represents a {@code KEY_TYPED} event for the
* specified character.
*
* @param keyChar the character value for a keyboard key
* @return an {@code AWTKeyStroke} object for that key
*/
public static AWTKeyStroke getAWTKeyStroke(char keyChar) {
return getCachedStroke(keyChar, KeyEvent.VK_UNDEFINED, 0, false);
}
/**
* Returns a shared instance of an {@code AWTKeyStroke}
* that represents a {@code KEY_TYPED} event for the
* specified Character object and a set of modifiers. Note
* that the first parameter is of type Character rather than
* char. This is to avoid inadvertent clashes with
* calls to {@code getAWTKeyStroke(int keyCode, int modifiers)}.
*
* The modifiers consist of any combination of following:<ul>
* <li>java.awt.event.InputEvent.SHIFT_DOWN_MASK
* <li>java.awt.event.InputEvent.CTRL_DOWN_MASK
* <li>java.awt.event.InputEvent.META_DOWN_MASK
* <li>java.awt.event.InputEvent.ALT_DOWN_MASK
* <li>java.awt.event.InputEvent.ALT_GRAPH_DOWN_MASK
* </ul>
* The old modifiers listed below also can be used, but they are
* mapped to _DOWN_ modifiers. <ul>
* <li>java.awt.event.InputEvent.SHIFT_MASK
* <li>java.awt.event.InputEvent.CTRL_MASK
* <li>java.awt.event.InputEvent.META_MASK
* <li>java.awt.event.InputEvent.ALT_MASK
* <li>java.awt.event.InputEvent.ALT_GRAPH_MASK
* </ul>
* also can be used, but they are mapped to _DOWN_ modifiers.
*
* Since these numbers are all different powers of two, any combination of
* them is an integer in which each bit represents a different modifier
* key. Use 0 to specify no modifiers.
*
* @param keyChar the Character object for a keyboard character
* @param modifiers a bitwise-ored combination of any modifiers
* @return an {@code AWTKeyStroke} object for that key
* @throws IllegalArgumentException if {@code keyChar} is
* {@code null}
*
* @see java.awt.event.InputEvent
*/
public static AWTKeyStroke getAWTKeyStroke(Character keyChar, int modifiers)
{
if (keyChar == null) {
throw new IllegalArgumentException("keyChar cannot be null");
}
return getCachedStroke(keyChar.charValue(), KeyEvent.VK_UNDEFINED,
modifiers, false);
}
/**
* Returns a shared instance of an {@code AWTKeyStroke},
* given a numeric key code and a set of modifiers, specifying
* whether the key is activated when it is pressed or released.
* <p>
* The "virtual key" constants defined in
* {@code java.awt.event.KeyEvent} can be
* used to specify the key code. For example:<ul>
* <li>{@code java.awt.event.KeyEvent.VK_ENTER}
* <li>{@code java.awt.event.KeyEvent.VK_TAB}
* <li>{@code java.awt.event.KeyEvent.VK_SPACE}
* </ul>
* Alternatively, the key code may be obtained by calling
* {@code java.awt.event.KeyEvent.getExtendedKeyCodeForChar}.
*
* The modifiers consist of any combination of:<ul>
* <li>java.awt.event.InputEvent.SHIFT_DOWN_MASK
* <li>java.awt.event.InputEvent.CTRL_DOWN_MASK
* <li>java.awt.event.InputEvent.META_DOWN_MASK
* <li>java.awt.event.InputEvent.ALT_DOWN_MASK
* <li>java.awt.event.InputEvent.ALT_GRAPH_DOWN_MASK
* </ul>
* The old modifiers <ul>
* <li>java.awt.event.InputEvent.SHIFT_MASK
* <li>java.awt.event.InputEvent.CTRL_MASK
* <li>java.awt.event.InputEvent.META_MASK
* <li>java.awt.event.InputEvent.ALT_MASK
* <li>java.awt.event.InputEvent.ALT_GRAPH_MASK
* </ul>
* also can be used, but they are mapped to _DOWN_ modifiers.
*
* Since these numbers are all different powers of two, any combination of
* them is an integer in which each bit represents a different modifier
* key. Use 0 to specify no modifiers.
*
* @param keyCode an int specifying the numeric code for a keyboard key
* @param modifiers a bitwise-ored combination of any modifiers
* @param onKeyRelease {@code true} if the {@code AWTKeyStroke}
* should represent a key release; {@code false} otherwise
* @return an AWTKeyStroke object for that key
*
* @see java.awt.event.KeyEvent
* @see java.awt.event.InputEvent
*/
public static AWTKeyStroke getAWTKeyStroke(int keyCode, int modifiers,
boolean onKeyRelease) {
return getCachedStroke(KeyEvent.CHAR_UNDEFINED, keyCode, modifiers,
onKeyRelease);
}
/**
* Returns a shared instance of an {@code AWTKeyStroke},
* given a numeric key code and a set of modifiers. The returned
* {@code AWTKeyStroke} will correspond to a key press.
* <p>
* The "virtual key" constants defined in
* {@code java.awt.event.KeyEvent} can be
* used to specify the key code. For example:<ul>
* <li>{@code java.awt.event.KeyEvent.VK_ENTER}
* <li>{@code java.awt.event.KeyEvent.VK_TAB}
* <li>{@code java.awt.event.KeyEvent.VK_SPACE}
* </ul>
* The modifiers consist of any combination of:<ul>
* <li>java.awt.event.InputEvent.SHIFT_DOWN_MASK
* <li>java.awt.event.InputEvent.CTRL_DOWN_MASK
* <li>java.awt.event.InputEvent.META_DOWN_MASK
* <li>java.awt.event.InputEvent.ALT_DOWN_MASK
* <li>java.awt.event.InputEvent.ALT_GRAPH_DOWN_MASK
* </ul>
* The old modifiers <ul>
* <li>java.awt.event.InputEvent.SHIFT_MASK
* <li>java.awt.event.InputEvent.CTRL_MASK
* <li>java.awt.event.InputEvent.META_MASK
* <li>java.awt.event.InputEvent.ALT_MASK
* <li>java.awt.event.InputEvent.ALT_GRAPH_MASK
* </ul>
* also can be used, but they are mapped to _DOWN_ modifiers.
*
* Since these numbers are all different powers of two, any combination of
* them is an integer in which each bit represents a different modifier
* key. Use 0 to specify no modifiers.
*
* @param keyCode an int specifying the numeric code for a keyboard key
* @param modifiers a bitwise-ored combination of any modifiers
* @return an {@code AWTKeyStroke} object for that key
*
* @see java.awt.event.KeyEvent
* @see java.awt.event.InputEvent
*/
public static AWTKeyStroke getAWTKeyStroke(int keyCode, int modifiers) {
return getCachedStroke(KeyEvent.CHAR_UNDEFINED, keyCode, modifiers,
false);
}
/**
* Returns an {@code AWTKeyStroke} which represents the
* stroke which generated a given {@code KeyEvent}.
* <p>
* This method obtains the keyChar from a {@code KeyTyped}
* event, and the keyCode from a {@code KeyPressed} or
* {@code KeyReleased} event. The {@code KeyEvent} modifiers are
* obtained for all three types of {@code KeyEvent}.
*
* @param anEvent the {@code KeyEvent} from which to
* obtain the {@code AWTKeyStroke}
* @throws NullPointerException if {@code anEvent} is null
* @return the {@code AWTKeyStroke} that precipitated the event
*/
@SuppressWarnings("deprecation")
public static AWTKeyStroke getAWTKeyStrokeForEvent(KeyEvent anEvent) {
int id = anEvent.getID();
switch(id) {
case KeyEvent.KEY_PRESSED:
case KeyEvent.KEY_RELEASED:
return getCachedStroke(KeyEvent.CHAR_UNDEFINED,
anEvent.getKeyCode(),
anEvent.getModifiers(),
(id == KeyEvent.KEY_RELEASED));
case KeyEvent.KEY_TYPED:
return getCachedStroke(anEvent.getKeyChar(),
KeyEvent.VK_UNDEFINED,
anEvent.getModifiers(),
false);
default:
// Invalid ID for this KeyEvent
return null;
}
}
/**
* Parses a string and returns an {@code AWTKeyStroke}.
* The string must have the following syntax:
* <pre>
* <modifiers>* (<typedID> | <pressedReleasedID>)
*
* modifiers := shift | control | ctrl | meta | alt | altGraph
* typedID := typed <typedKey>
* typedKey := string of length 1 giving Unicode character.
* pressedReleasedID := (pressed | released) key
* key := KeyEvent key code name, i.e. the name following "VK_".
* </pre>
* If typed, pressed or released is not specified, pressed is assumed. Here
* are some examples:
* <pre>
* "INSERT" => getAWTKeyStroke(KeyEvent.VK_INSERT, 0);
* "control DELETE" => getAWTKeyStroke(KeyEvent.VK_DELETE, InputEvent.CTRL_MASK);
* "alt shift X" => getAWTKeyStroke(KeyEvent.VK_X, InputEvent.ALT_MASK | InputEvent.SHIFT_MASK);
* "alt shift released X" => getAWTKeyStroke(KeyEvent.VK_X, InputEvent.ALT_MASK | InputEvent.SHIFT_MASK, true);
* "typed a" => getAWTKeyStroke('a');
* </pre>
*
* @param s a String formatted as described above
* @return an {@code AWTKeyStroke} object for that String
* @throws IllegalArgumentException if {@code s} is {@code null},
* or is formatted incorrectly
*/
@SuppressWarnings("deprecation")
public static AWTKeyStroke getAWTKeyStroke(String s) {
if (s == null) {
throw new IllegalArgumentException("String cannot be null");
}
final String errmsg = "String formatted incorrectly";
StringTokenizer st = new StringTokenizer(s, " ");
int mask = 0;
boolean released = false;
boolean typed = false;
boolean pressed = false;
synchronized (AWTKeyStroke.class) {
if (modifierKeywords == null) {
Map<String, Integer> uninitializedMap = new HashMap<>(8, 1.0f);
uninitializedMap.put("shift",
Integer.valueOf(InputEvent.SHIFT_DOWN_MASK
|InputEvent.SHIFT_MASK));
uninitializedMap.put("control",
Integer.valueOf(InputEvent.CTRL_DOWN_MASK
|InputEvent.CTRL_MASK));
uninitializedMap.put("ctrl",
Integer.valueOf(InputEvent.CTRL_DOWN_MASK
|InputEvent.CTRL_MASK));
uninitializedMap.put("meta",
Integer.valueOf(InputEvent.META_DOWN_MASK
|InputEvent.META_MASK));
uninitializedMap.put("alt",
Integer.valueOf(InputEvent.ALT_DOWN_MASK
|InputEvent.ALT_MASK));
uninitializedMap.put("altGraph",
Integer.valueOf(InputEvent.ALT_GRAPH_DOWN_MASK
|InputEvent.ALT_GRAPH_MASK));
uninitializedMap.put("button1",
Integer.valueOf(InputEvent.BUTTON1_DOWN_MASK));
uninitializedMap.put("button2",
Integer.valueOf(InputEvent.BUTTON2_DOWN_MASK));
uninitializedMap.put("button3",
Integer.valueOf(InputEvent.BUTTON3_DOWN_MASK));
modifierKeywords =
Collections.synchronizedMap(uninitializedMap);
}
}
int count = st.countTokens();
for (int i = 1; i <= count; i++) {
String token = st.nextToken();
if (typed) {
if (token.length() != 1 || i != count) {
throw new IllegalArgumentException(errmsg);
}
return getCachedStroke(token.charAt(0), KeyEvent.VK_UNDEFINED,
mask, false);
}
if (pressed || released || i == count) {
if (i != count) {
throw new IllegalArgumentException(errmsg);
}
String keyCodeName = "VK_" + token;
int keyCode = getVKValue(keyCodeName);
return getCachedStroke(KeyEvent.CHAR_UNDEFINED, keyCode,
mask, released);
}
if (token.equals("released")) {
released = true;
continue;
}
if (token.equals("pressed")) {
pressed = true;
continue;
}
if (token.equals("typed")) {
typed = true;
continue;
}
Integer tokenMask = modifierKeywords.get(token);
if (tokenMask != null) {
mask |= tokenMask.intValue();
} else {
throw new IllegalArgumentException(errmsg);
}
}
throw new IllegalArgumentException(errmsg);
}
private static VKCollection getVKCollection() {
if (vks == null) {
vks = new VKCollection();
}
return vks;
}
/**
* Returns the integer constant for the KeyEvent.VK field named
* {@code key}. This will throw an
* {@code IllegalArgumentException} if {@code key} is
* not a valid constant.
*/
private static int getVKValue(String key) {
VKCollection vkCollect = getVKCollection();
Integer value = vkCollect.findCode(key);
if (value == null) {
int keyCode = 0;
final String errmsg = "String formatted incorrectly";
try {
keyCode = KeyEvent.class.getField(key).getInt(KeyEvent.class);
} catch (NoSuchFieldException nsfe) {
throw new IllegalArgumentException(errmsg);
} catch (IllegalAccessException iae) {
throw new IllegalArgumentException(errmsg);
}
value = Integer.valueOf(keyCode);
vkCollect.put(key, value);
}
return value.intValue();
}
/**
* Returns the character for this {@code AWTKeyStroke}.
*
* @return a char value
* @see #getAWTKeyStroke(char)
* @see KeyEvent#getKeyChar
*/
public final char getKeyChar() {
return keyChar;
}
/**
* Returns the numeric key code for this {@code AWTKeyStroke}.
*
* @return an int containing the key code value
* @see #getAWTKeyStroke(int,int)
* @see KeyEvent#getKeyCode
*/
public final int getKeyCode() {
return keyCode;
}
/**
* Returns the modifier keys for this {@code AWTKeyStroke}.
*
* @return an int containing the modifiers
* @see #getAWTKeyStroke(int,int)
*/
public final int getModifiers() {
return modifiers;
}
/**
* Returns whether this {@code AWTKeyStroke} represents a key release.
*
* @return {@code true} if this {@code AWTKeyStroke}
* represents a key release; {@code false} otherwise
* @see #getAWTKeyStroke(int,int,boolean)
*/
public final boolean isOnKeyRelease() {
return onKeyRelease;
}
/**
* Returns the type of {@code KeyEvent} which corresponds to
* this {@code AWTKeyStroke}.
*
* @return {@code KeyEvent.KEY_PRESSED},
* {@code KeyEvent.KEY_TYPED},
* or {@code KeyEvent.KEY_RELEASED}
* @see java.awt.event.KeyEvent
*/
public final int getKeyEventType() {
if (keyCode == KeyEvent.VK_UNDEFINED) {
return KeyEvent.KEY_TYPED;
} else {
return (onKeyRelease)
? KeyEvent.KEY_RELEASED
: KeyEvent.KEY_PRESSED;
}
}
/**
* Returns a numeric value for this object that is likely to be unique,
* making it a good choice as the index value in a hash table.
*
* @return an int that represents this object
*/
public int hashCode() {
return (((int)keyChar) + 1) * (2 * (keyCode + 1)) * (modifiers + 1) +
(onKeyRelease ? 1 : 2);
}
/**
* Returns true if this object is identical to the specified object.
*
* @param anObject the Object to compare this object to
* @return true if the objects are identical
*/
public final boolean equals(Object anObject) {
if (anObject instanceof AWTKeyStroke) {
AWTKeyStroke ks = (AWTKeyStroke)anObject;
return (ks.keyChar == keyChar && ks.keyCode == keyCode &&
ks.onKeyRelease == onKeyRelease &&
ks.modifiers == modifiers);
}
return false;
}
/**
* Returns a string that displays and identifies this object's properties.
* The {@code String} returned by this method can be passed
* as a parameter to {@code getAWTKeyStroke(String)} to produce
* a key stroke equal to this key stroke.
*
* @return a String representation of this object
* @see #getAWTKeyStroke(String)
*/
public String toString() {
if (keyCode == KeyEvent.VK_UNDEFINED) {
return getModifiersText(modifiers) + "typed " + keyChar;
} else {
return getModifiersText(modifiers) +
(onKeyRelease ? "released" : "pressed") + " " +
getVKText(keyCode);
}
}
static String getModifiersText(int modifiers) {
StringBuilder buf = new StringBuilder();
if ((modifiers & InputEvent.SHIFT_DOWN_MASK) != 0 ) {
buf.append("shift ");
}
if ((modifiers & InputEvent.CTRL_DOWN_MASK) != 0 ) {
buf.append("ctrl ");
}
if ((modifiers & InputEvent.META_DOWN_MASK) != 0 ) {
buf.append("meta ");
}
if ((modifiers & InputEvent.ALT_DOWN_MASK) != 0 ) {
buf.append("alt ");
}
if ((modifiers & InputEvent.ALT_GRAPH_DOWN_MASK) != 0 ) {
buf.append("altGraph ");
}
if ((modifiers & InputEvent.BUTTON1_DOWN_MASK) != 0 ) {
buf.append("button1 ");
}
if ((modifiers & InputEvent.BUTTON2_DOWN_MASK) != 0 ) {
buf.append("button2 ");
}
if ((modifiers & InputEvent.BUTTON3_DOWN_MASK) != 0 ) {
buf.append("button3 ");
}
return buf.toString();
}
static String getVKText(int keyCode) {
VKCollection vkCollect = getVKCollection();
Integer key = Integer.valueOf(keyCode);
String name = vkCollect.findName(key);
if (name != null) {
return name.substring(3);
}
int expected_modifiers =
(Modifier.PUBLIC | Modifier.STATIC | Modifier.FINAL);
Field[] fields = KeyEvent.class.getDeclaredFields();
for (int i = 0; i < fields.length; i++) {
try {
if (fields[i].getModifiers() == expected_modifiers
&& fields[i].getType() == Integer.TYPE
&& fields[i].getName().startsWith("VK_")
&& fields[i].getInt(KeyEvent.class) == keyCode)
{
name = fields[i].getName();
vkCollect.put(name, key);
return name.substring(3);
}
} catch (IllegalAccessException e) {
assert(false);
}
}
return "UNKNOWN";
}
/**
* Returns a cached instance of {@code AWTKeyStroke} (or a subclass of
* {@code AWTKeyStroke}) which is equal to this instance.
*
* @return a cached instance which is equal to this instance
* @throws java.io.ObjectStreamException if a serialization problem occurs
*/
protected Object readResolve() throws java.io.ObjectStreamException {
synchronized (AWTKeyStroke.class) {
return getCachedStroke(keyChar, keyCode, modifiers, onKeyRelease);
}
}
@SuppressWarnings("deprecation")
private static int mapOldModifiers(int modifiers) {
if ((modifiers & InputEvent.SHIFT_MASK) != 0) {
modifiers |= InputEvent.SHIFT_DOWN_MASK;
}
if ((modifiers & InputEvent.ALT_MASK) != 0) {
modifiers |= InputEvent.ALT_DOWN_MASK;
}
if ((modifiers & InputEvent.ALT_GRAPH_MASK) != 0) {
modifiers |= InputEvent.ALT_GRAPH_DOWN_MASK;
}
if ((modifiers & InputEvent.CTRL_MASK) != 0) {
modifiers |= InputEvent.CTRL_DOWN_MASK;
}
if ((modifiers & InputEvent.META_MASK) != 0) {
modifiers |= InputEvent.META_DOWN_MASK;
}
modifiers &= InputEvent.SHIFT_DOWN_MASK
| InputEvent.ALT_DOWN_MASK
| InputEvent.ALT_GRAPH_DOWN_MASK
| InputEvent.CTRL_DOWN_MASK
| InputEvent.META_DOWN_MASK
| InputEvent.BUTTON1_DOWN_MASK
| InputEvent.BUTTON2_DOWN_MASK
| InputEvent.BUTTON3_DOWN_MASK;
return modifiers;
}
@SuppressWarnings("deprecation")
private static int mapNewModifiers(int modifiers) {
if ((modifiers & InputEvent.SHIFT_DOWN_MASK) != 0) {
modifiers |= InputEvent.SHIFT_MASK;
}
if ((modifiers & InputEvent.ALT_DOWN_MASK) != 0) {
modifiers |= InputEvent.ALT_MASK;
}
if ((modifiers & InputEvent.ALT_GRAPH_DOWN_MASK) != 0) {
modifiers |= InputEvent.ALT_GRAPH_MASK;
}
if ((modifiers & InputEvent.CTRL_DOWN_MASK) != 0) {
modifiers |= InputEvent.CTRL_MASK;
}
if ((modifiers & InputEvent.META_DOWN_MASK) != 0) {
modifiers |= InputEvent.META_MASK;
}
return modifiers;
}
}
class VKCollection {
Map<Integer, String> code2name;
Map<String, Integer> name2code;
public VKCollection() {
code2name = new HashMap<>();
name2code = new HashMap<>();
}
public synchronized void put(String name, Integer code) {
assert((name != null) && (code != null));
assert(findName(code) == null);
assert(findCode(name) == null);
code2name.put(code, name);
name2code.put(name, code);
}
public synchronized Integer findCode(String name) {
assert(name != null);
return name2code.get(name);
}
public synchronized String findName(Integer code) {
assert(code != null);
return code2name.get(code);
}
}
⏎ java/awt/AWTKeyStroke.java
Or download all of them as a single archive file:
File name: java.desktop-11.0.1-src.zip File size: 7974380 bytes Release date: 2018-11-04 Download
⇒ JDK 11 java.instrument.jmod - Instrument Module
2022-08-06, 193974👍, 5💬
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