add test grouptran2 for testing the transient of group transient window situation

tests/grouptran2.c

@@ -0,0 +1,79 @@
+/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
+
+   grouptran2.c for the Openbox window manager
+   Copyright (c) 2003-2007   Dana Jansens
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   See the COPYING file for a copy of the GNU General Public License.
+*/
+
+#include <stdio.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xatom.h>
+
+int main () {
+  Display   *display;
+  Window     main, grouptran, child, group;
+  XEvent     report;
+  XWMHints  *wmhints;
+
+  display = XOpenDisplay(NULL);
+
+  if (display == NULL) {
+    fprintf(stderr, "couldn't connect to X server :0\n");
+    return 0;
+  }
+
+  group = XCreateWindow(display, RootWindow(display, 0),
+                        0,0,1,1, 10, CopyFromParent, CopyFromParent,
+			 CopyFromParent, 0, 0);
+
+  main = XCreateWindow(display, RootWindow(display, 0),
+                      0,0,100,100, 10, CopyFromParent, CopyFromParent,
+			 CopyFromParent, 0, 0);
+  grouptran = XCreateWindow(display, RootWindow(display, 0),
+                            10,10,80,180, 10, CopyFromParent, CopyFromParent,
+                            CopyFromParent, 0, 0);
+  child = XCreateWindow(display, RootWindow(display, 0),
+                        20,20,60,60, 10, CopyFromParent, CopyFromParent,
+                        CopyFromParent, 0, 0);
+
+  XSetWindowBackground(display,main,WhitePixel(display,0)); 
+  XSetWindowBackground(display,grouptran,BlackPixel(display,0)); 
+  XSetWindowBackground(display,child,WhitePixel(display,0)); 
+
+  XSetTransientForHint(display, grouptran, RootWindow(display,0));
+  XSetTransientForHint(display, child, grouptran);
+
+  wmhints = XAllocWMHints();
+
+  wmhints->flags = WindowGroupHint;
+  wmhints->window_group = group;
+
+  XSetWMHints(display, main, wmhints);
+  XSetWMHints(display, grouptran, wmhints);
+  XSetWMHints(display, child, wmhints);
+
+  XFree(wmhints);
+  
+  XMapWindow(display, main);
+  XMapWindow(display, grouptran);
+  XMapWindow(display, child);
+  XFlush(display);
+
+  while (1) {
+    XNextEvent(display, &report);
+  }
+
+  return 1;
+}