moved X11-specific files into a separate subdir to keep root clean for

target files


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@282 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 126 insertions, 0 deletions

diff --git a/uisimulator/x11/vroot.h b/uisimulator/x11/vroot.h
new file mode 100644
index 0000000000..ba3e5d29fa
--- /dev/null
+++ b/uisimulator/x11/vroot.h
@@ -0,0 +1,126 @@
+/*****************************************************************************/
+/**                   Copyright 1991 by Andreas Stolcke                     **/
+/**               Copyright 1990 by Solbourne Computer Inc.                 **/
+/**                          Longmont, Colorado                             **/
+/**                                                                         **/
+/**                           All Rights Reserved                           **/
+/**                                                                         **/
+/**    Permission to use, copy, modify, and distribute this software and    **/
+/**    its documentation  for  any  purpose  and  without  fee is hereby    **/
+/**    granted, provided that the above copyright notice appear  in  all    **/
+/**    copies and that both  that  copyright  notice  and  this  permis-    **/
+/**    sion  notice appear in supporting  documentation,  and  that  the    **/
+/**    name of Solbourne not be used in advertising                         **/
+/**    in publicity pertaining to distribution of the  software  without    **/
+/**    specific, written prior permission.                                  **/
+/**                                                                         **/
+/**    ANDREAS STOLCKE AND SOLBOURNE COMPUTER INC. DISCLAIMS ALL WARRANTIES **/
+/**    WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF    **/
+/**    MERCHANTABILITY  AND  FITNESS,  IN  NO  EVENT SHALL ANDREAS STOLCKE  **/
+/**    OR SOLBOURNE BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL    **/
+/**    DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA   **/
+/**    OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER    **/
+/**    TORTIOUS ACTION, ARISING OUT OF OR IN  CONNECTION  WITH  THE  USE    **/
+/**    OR PERFORMANCE OF THIS SOFTWARE.                                     **/
+/*****************************************************************************/
+/*
+ * vroot.h -- Virtual Root Window handling header file
+ *
+ * This header file redefines the X11 macros RootWindow and DefaultRootWindow,
+ * making them look for a virtual root window as provided by certain `virtual'
+ * window managers like swm and tvtwm. If none is found, the ordinary root
+ * window is returned, thus retaining backward compatibility with standard
+ * window managers.
+ * The function implementing the virtual root lookup remembers the result of
+ * its last invocation to avoid overhead in the case of repeated calls
+ * on the same display and screen arguments. 
+ * The lookup code itself is taken from Tom LaStrange's ssetroot program.
+ *
+ * Most simple root window changing X programs can be converted to using
+ * virtual roots by just including
+ *
+ * #include <X11/vroot.h>
+ *
+ * after all the X11 header files.  It has been tested on such popular
+ * X clients as xphoon, xfroot, xloadimage, and xaqua.
+ * It also works with the core clients xprop, xwininfo, xwd, and editres
+ * (and is necessary to get those clients working under tvtwm).
+ * It does NOT work with xsetroot; get the xsetroot replacement included in
+ * the tvtwm distribution instead.
+ *
+ * Andreas Stolcke <stolcke@ICSI.Berkeley.EDU>, 9/7/90
+ * - replaced all NULL's with properly cast 0's, 5/6/91
+ * - free children list (suggested by Mark Martin <mmm@cetia.fr>), 5/16/91
+ * - include X11/Xlib.h and support RootWindowOfScreen, too 9/17/91
+ */
+
+#ifndef _VROOT_H_
+#define _VROOT_H_
+
+#if !defined(lint) && !defined(SABER)
+static const char vroot_rcsid[] = "#Id: vroot.h,v 1.4 1991/09/30 19:23:16 stolcke Exp stolcke #";
+#endif
+
+#include <X11/X.h>
+#include <X11/Xatom.h>
+#include <X11/Xlib.h>
+
+static Window
+#ifdef __STDC__ /* ANSIfication added by jwz, to avoid superfluous warnings. */
+VirtualRootWindowOfScreen(Screen *screen)
+#else /* !__STDC__ */
+VirtualRootWindowOfScreen(screen) Screen *screen;
+#endif /* !__STDC__ */
+{
+        static Screen *save_screen = (Screen *)0;
+        static Window root = (Window)0;
+
+        if (screen != save_screen) {
+                Display *dpy = DisplayOfScreen(screen);
+                Atom __SWM_VROOT = None;
+                int i;
+                Window rootReturn, parentReturn, *children;
+                unsigned int numChildren;
+
+                root = RootWindowOfScreen(screen);
+
+                /* go look for a virtual root */
+                __SWM_VROOT = XInternAtom(dpy, "__SWM_VROOT", False);
+                if (XQueryTree(dpy, root, &rootReturn, &parentReturn,
+                                 &children, &numChildren)) {
+                        for (i = 0; i < numChildren; i++) {
+                                Atom actual_type;
+                                int actual_format;
+                                unsigned long nitems, bytesafter;
+                                Window *newRoot = (Window *)0;
+
+                                if (XGetWindowProperty(dpy, children[i],
+                                        __SWM_VROOT, 0, 1, False, XA_WINDOW,
+                                        &actual_type, &actual_format,
+                                        &nitems, &bytesafter,
+                                        (unsigned char **) &newRoot) == Success
+                                    && newRoot) {
+                                    root = *newRoot;
+                                    break;
+                                }
+                        }
+                        if (children)
+                                XFree((char *)children);
+                }
+
+                save_screen = screen;
+        }
+
+        return root;
+}
+
+#undef RootWindowOfScreen
+#define RootWindowOfScreen(s) VirtualRootWindowOfScreen(s)
+
+#undef RootWindow
+#define RootWindow(dpy,screen) VirtualRootWindowOfScreen(ScreenOfDisplay(dpy,screen))
+
+#undef DefaultRootWindow
+#define DefaultRootWindow(dpy) VirtualRootWindowOfScreen(DefaultScreenOfDisplay(dpy))
+
+#endif /* _VROOT_H_ */