From e904bc5e620774bea43638c8cd679affbc36fa2e Mon Sep 17 00:00:00 2001
From: stanton <stanton>
Date: Wed, 6 Jan 1999 21:10:45 +0000
Subject: * generic/tkGrid.c: Fixed bug in "grid forget" that failed to cancel 
  pending idle handlers, resulting in a crash in a few odd cases.

---
 ChangeLog        |  5 +++++
 generic/tkGrid.c |  5 ++++-
 tests/grid.test  | 47 ++++++++++++++++++++++++++++-------------------
 3 files changed, 37 insertions(+), 20 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 7d4500d..77c2329 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+1998-12-30    <stanton@GASPODE>
+
+	* generic/tkGrid.c: Fixed bug in "grid forget" that failed to cancel
+	pending idle handlers, resulting in a crash in a few odd cases.
+
 1998-11-24    <stanton@GASPODE>
 
 	* unix/tkUnixFont.c (TkpGetNativeFont): On some X servers,
diff --git a/generic/tkGrid.c b/generic/tkGrid.c
index 46aa699..ea7a54c 100644
--- a/generic/tkGrid.c
+++ b/generic/tkGrid.c
@@ -8,7 +8,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tkGrid.c,v 1.2 1998/09/14 18:23:12 stanton Exp $
+ * RCS: @(#) $Id: tkGrid.c,v 1.3 1999/01/06 21:10:46 stanton Exp $
  */
 
 #include "tkInt.h"
@@ -440,6 +440,9 @@ Tk_GridCmd(clientData, interp, argc, argv)
 		    slavePtr->padX = slavePtr->padY = 0;
 		    slavePtr->iPadX = slavePtr->iPadY = 0;
 		    slavePtr->doubleBw = 2*Tk_Changes(tkwin)->border_width;
+		    if (slavePtr->flags & REQUESTED_RELAYOUT) {
+			Tk_CancelIdleCall(ArrangeGrid, (ClientData) slavePtr);
+		    }
 		    slavePtr->flags = 0;
 		    slavePtr->sticky = 0;
 	    	}
diff --git a/tests/grid.test b/tests/grid.test
index 61cc661..85464d7 100644
--- a/tests/grid.test
+++ b/tests/grid.test
@@ -2,29 +2,16 @@
 # of Tk.  It is (almost) organized in the standard fashion for Tcl tests.
 #
 # Copyright (c) 1996 Sun Microsystems, Inc.
+# Copyright (c) 1998-1999 by Scriptics Corporation.
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 #
-# RCS: @(#) $Id: grid.test,v 1.2 1998/09/14 18:23:47 stanton Exp $
+# RCS: @(#) $Id: grid.test,v 1.3 1999/01/06 21:10:46 stanton Exp $
 
 if {[string compare test [info procs test]] == 1} then \
   {source ../tests/defs}
 
-# Test Arguments:
-# name -                Name of test, in the form foo-1.2.
-# description -         Short textual description of the test, to
-#                       help humans understand what it does.
-# constraints -         A list of one or more keywords, each of
-#                       which must be the name of an element in
-#                       the array "testConfig".  If any of these
-#                       elements is zero, the test is skipped.
-#                       This argument may be omitted.
-# script -              Script to run to carry out the test.  It must
-#                       return a result that can be checked for
-#                       correctness.
-# answer -              Expected result from script.
-
 # helper routine to return "." to a sane state after a test
 # The variable GRID_VERBOSE can be used to "look" at the result
 # of one or all of the tests
@@ -310,18 +297,18 @@ test grid-6.7 {location (y)} {
 grid_reset 6.7
 
 test grid-6.8 {location (weights)} {
-    frame .f -width 200 -height 100 -highlightthickness 0 -bg red
+    frame .f -width 300 -height 100 -highlightthickness 0 -bg red
     frame .a
     grid .a
     grid .f -in .a
     grid rowconfigure .f 0 -weight 1
     grid columnconfigure .f 0 -weight 1
     grid propagate .a 0
-    .a configure -width 110 -height 15
+    .a configure -width 200 -height 15
     update
     set got ""
     set result ""
-    for {set y -10} { $y < 120} { incr y} {
+    for {set y -10} { $y < 210} { incr y} {
 	set a [grid location . $y $y]
 	if {$a != $got} {
 	    lappend result $y->$a
@@ -329,7 +316,7 @@ test grid-6.8 {location (weights)} {
 	}
     }
     set result
-} {{-10->-1 -1} {0->0 0} {16->0 1} {111->1 1}}
+} {{-10->-1 -1} {0->0 0} {16->0 1} {201->1 1}}
 grid_reset 6.8
 
 test grid-6.9 {location: check updates pending} {
@@ -1203,3 +1190,25 @@ test grid-16.8 {layout internal constraints} {
     }
     set a
 } {0 30 70 250 280 , 0 30 130 230 260 , 0 30 113 197 280 , 0 30 60 90 120 }
+
+test grid-17.1 {forget and pending idle handlers} {
+    # This test is intended to detect a crash caused by a failure to remove
+    # pending idle handlers when grid forget is invoked.
+
+    toplevel .t
+    frame .t.f
+    label .t.f.l -text foobar
+    grid .t.f.l
+    grid .t.f
+    update
+    grid forget .t.f.l
+    grid forget .t.f
+    destroy .t
+
+    toplevel .t
+    frame .t.f
+    label .t.f.l -text foobar
+    grid .t.f.l
+    destroy .t
+    set result ok
+} ok
-- 
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