/*
* This file is modified by Ivan Maidanski <ivmai@ivmaisoft.com>
* Project name: JCGO-SUNAWT (http://www.ivmaisoft.com/jcgo/)
*/
/*
* @(#)MDragSourceContextPeer.java 1.38 03/01/23
*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package sun.awt.motif;
import java.awt.Component;
import java.awt.Cursor;
import java.awt.Image;
import java.awt.Point;
import java.awt.datatransfer.Transferable;
import java.awt.dnd.DragSourceContext;
import java.awt.dnd.DragGestureEvent;
import java.awt.dnd.InvalidDnDOperationException;
import java.awt.event.InputEvent;
import java.awt.peer.ComponentPeer;
import java.awt.peer.LightweightPeer;
import java.util.Map;
import sun.awt.dnd.SunDragSourceContextPeer;
/**
* <p>
* TBC
* </p>
*
* @version 1.38
* @since JDK1.2
*
*/
final class MDragSourceContextPeer extends SunDragSourceContextPeer {
private static final MDragSourceContextPeer theInstance =
new MDragSourceContextPeer(null);
/**
* construct a new MDragSourceContextPeer
*/
private MDragSourceContextPeer(DragGestureEvent dge) {
super(dge);
}
static MDragSourceContextPeer createDragSourceContextPeer(DragGestureEvent dge) throws InvalidDnDOperationException {
theInstance.setTrigger(dge);
return theInstance;
}
protected void startDrag(Transferable transferable,
long[] formats, Map formatMap) {
try {
long nativeCtxtLocal = startDrag(getTrigger().getComponent(),
transferable,
getTrigger().getTriggerEvent(),
getCursor(),
getCursor() == null ? 0 : getCursor().getType(),
getDragSourceContext().getSourceActions(),
formats,
formatMap);
setNativeContext(nativeCtxtLocal);
} catch (Exception e) {
throw new InvalidDnDOperationException("failed to create native peer: " + e);
}
if (getNativeContext() == 0) {
throw new InvalidDnDOperationException("failed to create native peer");
}
MDropTargetContextPeer.setCurrentJVMLocalSourceTransferable(transferable);
}
/**
* downcall into native code
*/
private native long startDrag(Component component,
Transferable transferable,
InputEvent nativeTrigger,
Cursor c, int ctype, int actions,
long[] formats, Map formatMap);
/**
* set cursor
*/
public void setCursor(Cursor c) throws InvalidDnDOperationException {
AWTLockAccess.awtLock();
try {
super.setCursor(c);
}
finally {
AWTLockAccess.awtUnlock();
}
}
protected boolean needsBogusExitBeforeDrop() {
return false;
}
}