-// Copyright 2002 Adam Megacz, see the COPYING file for licensing [GPL]
+// Copyright 2003 Adam Megacz, see the COPYING file for licensing [GPL]
package org.xwt.plat;
import org.xwt.*;
private static Class c5 = gnu.gcj.convert.Input_8859_1.class;
private static Class c6 = gnu.java.locale.LocaleInformation.class;
private static Class c7 = gnu.gcj.convert.Output_ASCII.class;
+ private static Class c8 = gnu.java.locale.Calendar_en.class;
+ private static Class c9 = gnu.java.locale.Calendar_en_US.class;
- protected org.xwt.Weak _getWeak(Object o) { return new Java2Weak(o); }
- protected native InputStream _getBuiltinInputStream();
+ protected native InputStream _getBuiltinInputStream();
- private static class Java2Weak extends java.lang.ref.WeakReference implements org.xwt.Weak {
- public Java2Weak(Object o) { super(o); }
- }
-
- // FIXME
- protected ImageDecoder _decodeJPEG(InputStream is, String name) {
- try {
- return new JPEG(is);
- } catch (Exception e) {
- Log.log(this, "Exception while decoding JPEG image " + name);
- Log.log(this, e);
- return null;
- }
- }
+ protected native void _decodeJPEG(InputStream is, Picture p);
- /** Converts an InputStream carrying a JPEG image into an ARGB int[] */
- private static class JPEG implements ImageDecoder {
- int[] data;
- byte[] buffer;
- int width, height;
- InputStream is;
-
- public final int[] getData() { return data; }
- public final int getWidth() { return width; }
- public final int getHeight() { return height; }
- private JPEG(InputStream is) { this.is = is; nativeDecompress(); buffer = null; }
- private native void nativeDecompress();
+ // FEATURE: This could be optimized (a lot) by using a custom hashtable
+ public final static class Retainer {
+ private static Hash table = new Hash();
+ private final static class Key {
+ private Object o;
+ public Key(Object o) { this.o = o; }
+ public int hashCode() { return o == null ? 0 : o.hashCode(); }
+ public boolean equals(Object o2) { return (o2 instanceof Key) && ((Key)o2).o == o; }
+ }
+ private final static class Entry {
+ private int refCount;
+ public Entry() { inc(); }
+ public void inc() { refCount++; }
+ public boolean dec() { return --refCount == 0; }
+ }
+ public static synchronized void retain(Object o) {
+ Key k = new Key(o);
+ Entry r = (Entry) table.get(k);
+ if(r == null) table.put(k,new Entry());
+ else r.inc();
+ }
+ public static synchronized void release(Object o) {
+ Key k = new Key(o);
+ Entry e = (Entry) table.get(k);
+ if(e == null) throw new Error("Retainer::Release on unknown object");
+ if(e.dec()) { table.remove(k); }
+ }
}
-
}
-