From 7aa46a49a80c4e090566fb9244f8809a290c4dc9 Mon Sep 17 00:00:00 2001
From: treectrl <treectrl>
Date: Thu, 7 Jul 2005 03:18:57 +0000
Subject: UnsetClipMask works around Tk_DrawChars not clearing the clip region
 on Win32.

---
 generic/tkTreeUtils.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/generic/tkTreeUtils.c b/generic/tkTreeUtils.c
index e2c9ce0..fe539a5 100644
--- a/generic/tkTreeUtils.c
+++ b/generic/tkTreeUtils.c
@@ -5,7 +5,7 @@
  *
  * Copyright (c) 2002-2005 Tim Baker
  *
- * RCS: @(#) $Id: tkTreeUtils.c,v 1.29 2005/06/18 01:52:38 treectrl Exp $
+ * RCS: @(#) $Id: tkTreeUtils.c,v 1.30 2005/07/07 03:18:57 treectrl Exp $
  */
 
 #include "tkTreeCtrl.h"
@@ -613,6 +613,22 @@ int Tree_ScrollWindow(TreeCtrl *tree, GC gc, int x, int y,
 	return result;
 }
 
+void UnsetClipMask(TreeCtrl *tree, Drawable drawable, GC gc)
+{
+	XSetClipMask(tree->display, gc, None);
+#ifdef WIN32
+	/* Tk_DrawChars does not clear the clip region */
+	if (drawable == Tk_WindowId(tree->tkwin)) {
+		HDC dc;
+		TkWinDCState dcState;
+
+		dc = TkWinGetDrawableDC(tree->display, drawable, &dcState);
+		SelectClipRgn(dc, NULL);
+		TkWinReleaseDrawableDC(drawable, dc, &dcState);
+	}
+#endif
+}
+
 void Tree_DrawBitmapWithGC(TreeCtrl *tree, Pixmap bitmap, Drawable drawable,
 	GC gc, int src_x, int src_y, int width, int height, int dest_x, int dest_y)
 {
-- 
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