1 files changed, 73 insertions, 0 deletions
diff --git a/mi/miclipn.c b/mi/miclipn.c
new file mode 100644
index 000000000..6eca416f8
--- /dev/null
+++ b/mi/miclipn.c
@@ -0,0 +1,73 @@
+/* $Xorg: miclipn.c,v 1.4 2001/02/09 02:05:20 xorgcvs Exp $ */
+/*
+
+Copyright 1990, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from The Open Group.
+
+*/
+
+#include "X.h"
+#include "windowstr.h"
+#include "scrnintstr.h"
+
+static void	(*clipNotify)() = 0;
+static void	(*ClipNotifies[MAXSCREENS])();
+
+static void
+miClipNotifyWrapper(pWin, dx, dy)
+    WindowPtr pWin;
+    int dx, dy;
+{
+    if (clipNotify)
+	(*clipNotify)(pWin, dx, dy);
+    if (ClipNotifies[pWin->drawable.pScreen->myNum])
+	(*ClipNotifies[pWin->drawable.pScreen->myNum])(pWin, dx, dy);
+}
+
+/*
+ * miClipNotify --
+ *	Hook to let DDX request notification when the clipList of
+ *	a window is recomputed on any screen.  For R4 compatibility;
+ *	better if you wrap the ClipNotify screen proc yourself.
+ */
+
+static unsigned long clipGeneration = 0;
+
+void
+miClipNotify (func)
+    void (*func)();
+{
+    int i;
+
+    clipNotify = func;
+    if (clipGeneration != serverGeneration)
+    {
+	clipGeneration = serverGeneration;
+	for (i = 0; i < screenInfo.numScreens; i++)
+	{
+	    ClipNotifies[i] = screenInfo.screens[i]->ClipNotify;
+	    screenInfo.screens[i]->ClipNotify = miClipNotifyWrapper;
+	}
+    }
+}