DEFAULT_CURSOR.
+ *
+ * @serial
+ * @see #getType()
+ */
+ int type = DEFAULT_CURSOR;
+
+ /**
+ * The type associated with all custom cursors.
+ */
+ public static final int CUSTOM_CURSOR = -1;
+
+ /*
+ * hashtable, filesystem dir prefix, filename, and properties for custom cursors support
+ */
+
+ private static final Hashtable systemCustomCursors = new Hashtable(1);
+ private static final String systemCustomCursorDirPrefix = initCursorDir();
+
+ private static String initCursorDir() {
+ String jhome = (String) java.security.AccessController.doPrivileged(
+ new sun.security.action.GetPropertyAction("java.home"));
+ return jhome +
+ File.separator + "lib" + File.separator + "images" +
+ File.separator + "cursors" + File.separator;
+ }
+
+ private static final String systemCustomCursorPropertiesFile = systemCustomCursorDirPrefix + "cursors.properties";
+
+ private static Properties systemCustomCursorProperties = null;
+
+ private static final String CursorDotPrefix = "Cursor.";
+ private static final String DotFileSuffix = ".File";
+ private static final String DotHotspotSuffix = ".HotSpot";
+ private static final String DotNameSuffix = ".Name";
+
+ /*
+ * JDK 1.1 serialVersionUID
+ */
+ private static final long serialVersionUID = 8028237497568985504L;
+
+ private static final Logger log = Logger.getLogger("java.awt.Cursor");
+
+ static {
+ /* ensure that the necessary native libraries are loaded */
+ Toolkit.loadLibraries();
+ if (!GraphicsEnvironment.isHeadless()) {
+ initIDs();
+ }
+ }
+
+ /**
+ * Initialize JNI field and method IDs for fields that may be
+ * accessed from C.
+ */
+ private static native void initIDs();
+
+ /**
+ * Hook into native data.
+ */
+ private transient long pData;
+
+ private transient Object anchor = new Object();
+
+ static class CursorDisposer implements sun.java2d.DisposerRecord {
+ volatile long pData;
+ public CursorDisposer(long pData) {
+ this.pData = pData;
+ }
+ public void dispose() {
+ if (pData != 0) {
+ finalizeImpl(pData);
+ }
+ }
+ }
+ transient CursorDisposer disposer;
+ private void setPData(long pData) {
+ this.pData = pData;
+ if (GraphicsEnvironment.isHeadless()) {
+ return;
+ }
+ if (disposer == null) {
+ disposer = new CursorDisposer(pData);
+ // anchor is null after deserialization
+ if (anchor == null) {
+ anchor = new Object();
+ }
+ sun.java2d.Disposer.addRecord(anchor, disposer);
+ } else {
+ disposer.pData = pData;
+ }
+ }
+
+ /**
+ * The user-visible name of the cursor.
+ *
+ * @serial
+ * @see #getName()
+ */
+ protected String name;
+
+ /**
+ * Returns a cursor object with the specified predefined type.
+ *
+ * @param type the type of predefined cursor
+ * @return the specified predefined cursor
+ * @throws IllegalArgumentException if the specified cursor type is
+ * invalid
+ */
+ static public Cursor getPredefinedCursor(int type) {
+ if (type < Cursor.DEFAULT_CURSOR || type > Cursor.MOVE_CURSOR) {
+ throw new IllegalArgumentException("illegal cursor type");
+ }
+ if (predefined[type] == null) {
+ predefined[type] = new Cursor(type);
+ }
+ return predefined[type];
+ }
+
+ /**
+ * Returns a system-specific custom cursor object matching the
+ * specified name. Cursor names are, for example: "Invalid.16x16"
+ *
+ * @param name a string describing the desired system-specific custom cursor
+ * @return the system specific custom cursor named
+ * @exception HeadlessException if
+ * GraphicsEnvironment.isHeadless returns true
+ */
+ static public Cursor getSystemCustomCursor(final String name)
+ throws AWTException, HeadlessException {
+ GraphicsEnvironment.checkHeadless();
+ Cursor cursor = (Cursor)systemCustomCursors.get(name);
+
+ if (cursor == null) {
+ synchronized(systemCustomCursors) {
+ if (systemCustomCursorProperties == null)
+ loadSystemCustomCursorProperties();
+ }
+
+ String prefix = CursorDotPrefix + name;
+ String key = prefix + DotFileSuffix;
+
+ if (!systemCustomCursorProperties.containsKey(key)) {
+ if (log.isLoggable(Level.FINER)) {
+ log.log(Level.FINER, "Cursor.getSystemCustomCursor(" + name + ") returned null");
+ }
+ return null;
+ }
+
+ final String fileName =
+ systemCustomCursorProperties.getProperty(key);
+
+ String localized = (String)systemCustomCursorProperties.getProperty(prefix + DotNameSuffix);
+
+ if (localized == null) localized = name;
+
+ String hotspot = (String)systemCustomCursorProperties.getProperty(prefix + DotHotspotSuffix);
+
+ if (hotspot == null)
+ throw new AWTException("no hotspot property defined for cursor: " + name);
+
+ StringTokenizer st = new StringTokenizer(hotspot, ",");
+
+ if (st.countTokens() != 2)
+ throw new AWTException("failed to parse hotspot property for cursor: " + name);
+
+ int x = 0;
+ int y = 0;
+
+ try {
+ x = Integer.parseInt(st.nextToken());
+ y = Integer.parseInt(st.nextToken());
+ } catch (NumberFormatException nfe) {
+ throw new AWTException("failed to parse hotspot property for cursor: " + name);
+ }
+
+ try {
+ final int fx = x;
+ final int fy = y;
+ final String flocalized = localized;
+
+ cursor = (Cursor) java.security.AccessController.doPrivileged(
+ new java.security.PrivilegedExceptionAction() {
+ public Object run() throws Exception {
+ Toolkit toolkit = Toolkit.getDefaultToolkit();
+ Image image = toolkit.getImage(
+ systemCustomCursorDirPrefix + fileName);
+ return toolkit.createCustomCursor(
+ image, new Point(fx,fy), flocalized);
+ }
+ });
+ } catch (Exception e) {
+ throw new AWTException(
+ "Exception: " + e.getClass() + " " + e.getMessage() +
+ " occurred while creating cursor " + name);
+ }
+
+ if (cursor == null) {
+ if (log.isLoggable(Level.FINER)) {
+ log.log(Level.FINER, "Cursor.getSystemCustomCursor(" + name + ") returned null");
+ }
+ } else {
+ systemCustomCursors.put(name, cursor);
+ }
+ }
+
+ return cursor;
+ }
+
+ /**
+ * Return the system default cursor.
+ */
+ static public Cursor getDefaultCursor() {
+ return getPredefinedCursor(Cursor.DEFAULT_CURSOR);
+ }
+
+ /**
+ * Creates a new cursor object with the specified type.
+ * @param type the type of cursor
+ * @throws IllegalArgumentException if the specified cursor type
+ * is invalid
+ */
+ @ConstructorProperties({"type"})
+ public Cursor(int type) {
+ if (type < Cursor.DEFAULT_CURSOR || type > Cursor.MOVE_CURSOR) {
+ throw new IllegalArgumentException("illegal cursor type");
+ }
+ this.type = type;
+
+ // Lookup localized name.
+ name = Toolkit.getProperty(cursorProperties[type][0],
+ cursorProperties[type][1]);
+ }
+
+ /**
+ * Creates a new custom cursor object with the specified name.+ * Note: this constructor should only be used by AWT implementations + * as part of their support for custom cursors. Applications should + * use Toolkit.createCustomCursor(). + * @param name the user-visible name of the cursor. + * @see java.awt.Toolkit#createCustomCursor + */ + protected Cursor(String name) { + this.type = Cursor.CUSTOM_CURSOR; + this.name = name; + } + + /** + * Returns the type for this cursor. + */ + public int getType() { + return type; + } + + /** + * Returns the name of this cursor. + * @return a localized description of this cursor. + * @since 1.2 + */ + public String getName() { + return name; + } + + /** + * Returns a string representation of this cursor. + * @return a string representation of this cursor. + * @since 1.2 + */ + public String toString() { + return getClass().getName() + "[" + getName() + "]"; + } + + /* + * load the cursor.properties file + */ + private static void loadSystemCustomCursorProperties() throws AWTException { + synchronized(systemCustomCursors) { + systemCustomCursorProperties = new Properties(); + + try { + AccessController.doPrivileged( + new java.security.PrivilegedExceptionAction() { + public Object run() throws Exception { + FileInputStream fis = null; + try { + fis = new FileInputStream( + systemCustomCursorPropertiesFile); + systemCustomCursorProperties.load(fis); + } finally { + if (fis != null) + fis.close(); + } + return null; + } + }); + } catch (Exception e) { + systemCustomCursorProperties = null; + throw new AWTException("Exception: " + e.getClass() + " " + + e.getMessage() + " occurred while loading: " + + systemCustomCursorPropertiesFile); + } + } + } + + private native static void finalizeImpl(long pData); +}