/**
   * Verifies that all required parameters are set. If not, sets them to default values. Verifies
   * values of critical parameters, adjust their values when needed.
   *
   * @throws IllegalArgumentException if params is null
   */
  protected void checkParams(XCreateWindowParams params) {
    if (params == null) {
      throw new IllegalArgumentException("Window creation parameters are null");
    }
    params.putIfNull(PARENT_WINDOW, Long.valueOf(XToolkit.getDefaultRootWindow()));
    params.putIfNull(BOUNDS, new Rectangle(DEF_LOCATION, DEF_LOCATION, MIN_SIZE, MIN_SIZE));
    params.putIfNull(DEPTH, Integer.valueOf((int) XlibWrapper.CopyFromParent));
    params.putIfNull(VISUAL, Long.valueOf(XlibWrapper.CopyFromParent));
    params.putIfNull(VISUAL_CLASS, Integer.valueOf((int) XlibWrapper.InputOnly));
    params.putIfNull(VALUE_MASK, Long.valueOf(XlibWrapper.CWEventMask));
    Rectangle bounds = (Rectangle) params.get(BOUNDS);
    bounds.width = Math.max(MIN_SIZE, bounds.width);
    bounds.height = Math.max(MIN_SIZE, bounds.height);

    Long eventMaskObj = (Long) params.get(EVENT_MASK);
    long eventMask = eventMaskObj != null ? eventMaskObj.longValue() : 0;
    // We use our own synthetic grab see XAwtState.getGrabWindow()
    // (see X vol. 1, 8.3.3.2)
    eventMask |= PropertyChangeMask | OwnerGrabButtonMask;
    params.put(EVENT_MASK, Long.valueOf(eventMask));
  }
示例#2
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 void detachChild() {
   if (xembedLog.isLoggable(PlatformLogger.FINE))
     xembedLog.fine("Detaching child " + Long.toHexString(xembed.handle));
   /**
    * XEmbed specification: "The embedder can unmap the client and reparent the client window to
    * the root window. If the client receives an ReparentNotify event, it should check the parent
    * field of the XReparentEvent structure. If this is the root window of the window's screen,
    * then the protocol is finished and there is no further interaction. If it is a window other
    * than the root window, then the protocol continues with the new parent acting as the embedder
    * window."
    */
   XToolkit.awtLock();
   try {
     XlibWrapper.XUnmapWindow(XToolkit.getDisplay(), xembed.handle);
     XlibWrapper.XReparentWindow(
         XToolkit.getDisplay(), xembed.handle, XToolkit.getDefaultRootWindow(), 0, 0);
   } finally {
     XToolkit.awtUnlock();
   }
   endDispatching();
   xembed.handle = 0;
 }
 public int getAbsoluteY() {
   Point absoluteLoc =
       XlibUtil.translateCoordinates(
           getWindow(), XToolkit.getDefaultRootWindow(), new Point(0, 0));
   return absoluteLoc != null ? absoluteLoc.y : 0;
 }