/* 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. * *

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 */ 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() { try { 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; } catch (CloneNotSupportedException ex) { // This should never happen. throw new InternalError (); } } 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"); } }