gcc/libjava/gnu/gcj/xlib/WindowAttributes.java
Per Bothner c314ee353b * gnu/gcj/xlib/WindowAttributes.java Assign null to RawData, not 0.
* gnu/gcj/xlib/XImage.java:  Likewise.
	* gnu/gcj/xlib/XColor.java:  Likewise.

From-SVN: r50498
2002-03-09 08:25:13 -08:00

107 lines
2.5 KiB
Java

/* Copyright (C) 2000 Free Software Foundation
This file is part of libgcj.
This software is copyrighted work licensed under the terms of the
Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
details. */
package gnu.gcj.xlib;
import gnu.gcj.RawData;
/**
*
* Collection of attributes that can be applied to or read from an
* X11 window.
*
* <p>TODO: Split this class into two classes. One for the structure
* XSetWindowAttributes and one for the XWindowAttributes. However
* they should still share this common base class.
*
* @author Rolf W. Rasmussen <rolfwr@ii.uib.no> */
public class WindowAttributes
{
// Must match definitions in X.h:
public final static long MASK_BUTTON_PRESS = 1L<< 2,
MASK_BUTTON_RELEASE = 1L<< 3,
MASK_EXPOSURE = 1L<<15,
MASK_STRUCTURE_NOTIFY = 1L<<17;
public WindowAttributes()
{
init(null);
}
public WindowAttributes(Window from)
{
initFromWindow(from);
}
private native void initFromWindow(Window from);
private native void init(WindowAttributes copyFrom);
protected native void finalize();
public Object clone()
{
WindowAttributes attributes = (WindowAttributes) super.clone();
// In case of an exception before the stucture is copied.
attributes.in = null;
attributes.out = null;
// FIXME: do anything else?
attributes.init(this);
return attributes;
}
public native void setBackground(long pixel);
public native void setBackground(Pixmap pixmap);
public native void setEventMask(long eventMask);
public void setVisual(Visual visual)
{
this.visual = visual;
}
/**
* Retrieve the visual.
*
* @return the visual that is or should be used by a window. null
* means CopyFormParent.
*/
public native Visual getVisual();
Display display;
/**
* Reference to XWindowAttribute structure containing attributes
* read from a window.
*/
RawData in = null;
/**
* Reference to XSetWindowAttribute structure containing attributes
* to be applied to a window.
*/
RawData out = null;
long mask;
/** null means CopyFromParent during window creation. */
Visual visual = null;
public native void apply(Window window);
final RawData getXSetWindowAttributesStructure()
{
if (out == null)
initOut();
return out;
}
void initOut()
{
throw new UnsupportedOperationException("not implemented yet");
}
}