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package org.eclipse.swt.dnd;
import org.eclipse.swt.*;
import org.eclipse.swt.internal.*;
import org.eclipse.swt.internal.photon.*;
import org.eclipse.swt.widgets.*;
/*
* (c) Copyright IBM Corp. 2000, 2001.
* All Rights Reserved
*/
/*
*
* IMPORTANT: This class is <em>not</em> intended to be subclassed.
*
*/
public class Clipboard {
private Display display;
private final int MAX_RETRIES = 10;
private int shellHandle;
public Clipboard(Display display) {
checkSubclass ();
if (display == null) {
display = Display.getCurrent();
if (display == null) {
display = Display.getDefault();
}
}
if (display.getThread() != Thread.currentThread()) {
SWT.error(SWT.ERROR_THREAD_INVALID_ACCESS);
}
this.display = display;
// int widgetClass = OS.TopLevelShellWidgetClass ();
// shellHandle = OS.XtAppCreateShell (null, null, widgetClass, display.xDisplay, null, 0);
// OS.XtSetMappedWhenManaged (shellHandle, false);
// OS.XtRealizeWidget (shellHandle);
}
protected void checkSubclass () {
String name = getClass().getName ();
String validName = Clipboard.class.getName();
if (!validName.equals(name)) {
DND.error (SWT.ERROR_INVALID_SUBCLASS);
}
}
public void dispose () {
// if (shellHandle != 0) OS.XtDestroyWidget (shellHandle);
// shellHandle = 0;
display = null;
}
public Object getContents(Transfer transfer) {
if (display.isDisposed() ) return null;
return null;
}
public void setContents(Object[] data, Transfer[] transferAgents){
}
/*
* Note: getAvailableTypeNames is a tool for writing a Transfer sub-class only. It should
* NOT be used within an application because it provides platform specfic
* information.
*/
public String[] getAvailableTypeNames() {
int[] count = new int[1];
int[] max_length = new int[1];
// int xDisplay = OS.XtDisplay (shellHandle);
// if (xDisplay == 0)
// DND.error(SWT.ERROR_UNSPECIFIED);
// int xWindow = OS.XtWindow (shellHandle);
// if (xWindow == 0)
// DND.error(SWT.ERROR_UNSPECIFIED);
// if (OS.XmClipboardInquireCount(xDisplay, xWindow, count, max_length) != OS.XmClipboardSuccess)
// DND.error(SWT.ERROR_UNSPECIFIED);
String[] types = new String[count[0]];
// for (int i = 0; i < count[0]; i++) {
// byte[] buffer = new byte[max_length[0]];
// int[] copied_length = new int[1];
// int rc = OS.XmClipboardInquireFormat(xDisplay, xWindow, i + 1, buffer, buffer.length, copied_length);
// if (rc == OS.XmClipboardNoData){
// types[i] = "";
// continue;
// }
// if (rc != OS.XmClipboardSuccess)
// DND.error(SWT.ERROR_UNSPECIFIED);
// byte[] buffer2 = new byte[copied_length[0]];
// System.arraycopy(buffer, 0, buffer2, 0, copied_length[0]);
// types[i] = new String(buffer2);
// }
return types;
}
}
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