* generic/tkPanedWindow.c (ArrangePanes): Ensure that the last pane

	* tests/panedwindow.test: shrinks instead of being clipped when
	resized below the reqsize. [Bug 748277] (spjuth)

3 files changed, 36 insertions, 5 deletions

diff --git a/ChangeLog b/ChangeLog
index 4802e24..566b61e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -6,6 +6,10 @@
 
 2003-07-16  Jeff Hobbs  <jeffh@ActiveState.com>
 
+	* generic/tkPanedWindow.c (ArrangePanes): Ensure that the last pane
+	* tests/panedwindow.test: shrinks instead of being clipped when
+	resized below the reqsize. [Bug 748277] (spjuth)
+
 	* generic/tkWindow.c (Initialize): do not free uninit'ed dstring.
 	[Bug 755906] (mistachkin)
 
diff --git a/generic/tkPanedWindow.c b/generic/tkPanedWindow.c
index 9d72509..eb0108f 100644
--- a/generic/tkPanedWindow.c
+++ b/generic/tkPanedWindow.c
@@ -12,7 +12,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tkPanedWindow.c,v 1.14 2003/05/21 15:31:01 dkf Exp $
+ * RCS: @(#) $Id: tkPanedWindow.c,v 1.15 2003/07/17 00:39:53 hobbs Exp $
  */
 
 #include "tkPort.h"
@@ -1643,9 +1643,12 @@ ArrangePanes(clientData)
 	if (pwPtr->orient == ORIENT_HORIZONTAL) {
 	    paneWidth = slavePtr->paneWidth;
 	    if (i == pwPtr->numSlaves - 1 && Tk_IsMapped(pwPtr->tkwin)) {
-		if (Tk_Width(pwPtr->tkwin) > Tk_ReqWidth(pwPtr->tkwin)) {
+		if (Tk_Width(pwPtr->tkwin) != Tk_ReqWidth(pwPtr->tkwin)) {
 		    paneWidth += Tk_Width(pwPtr->tkwin) -
 			Tk_ReqWidth(pwPtr->tkwin);
+		    if (paneWidth < 0) {
+			paneWidth = 0;
+		    }
 		}
 	    }
 	    paneHeight = Tk_Height(pwPtr->tkwin) - (2 * slavePtr->pady) -
@@ -1653,9 +1656,12 @@ ArrangePanes(clientData)
 	} else {
 	    paneHeight = slavePtr->paneHeight;
 	    if (i == pwPtr->numSlaves - 1 && Tk_IsMapped(pwPtr->tkwin)) {
-		if (Tk_Height(pwPtr->tkwin) > Tk_ReqHeight(pwPtr->tkwin)) {
+		if (Tk_Height(pwPtr->tkwin) != Tk_ReqHeight(pwPtr->tkwin)) {
 		    paneHeight += Tk_Height(pwPtr->tkwin) -
 			Tk_ReqHeight(pwPtr->tkwin);
+		    if (paneHeight < 0) {
+			paneHeight = 0;
+		    }
 		}
 	    }
 	    paneWidth = Tk_Width(pwPtr->tkwin) - (2 * slavePtr->padx) -
diff --git a/tests/panedwindow.test b/tests/panedwindow.test
index 70e0e7c..446830f 100644
--- a/tests/panedwindow.test
+++ b/tests/panedwindow.test
@@ -6,7 +6,7 @@
 # Copyright (c) 1998-1999 by Scriptics Corporation.
 # All rights reserved.
 #
-# RCS: @(#) $Id: panedwindow.test,v 1.10 2003/05/21 15:31:01 dkf Exp $
+# RCS: @(#) $Id: panedwindow.test,v 1.11 2003/07/17 00:39:53 hobbs Exp $
 
 package require tcltest 2.1
 eval tcltest::configure $argv
@@ -1871,7 +1871,28 @@ test panedwindow-22.11 {ArrangePanes, panes with width <= 0 are unmapped} {
     destroy .p .p.f1 .p.f2
     set result
 } {1 0}
-    
+test panedwindow-22.12 {ArrangePanes, last pane shrinks} {
+    panedwindow .p -showhandle false -borderwidth 0 -sashpad 0 -sashwidth 2
+    .p add [frame .f1 -width 20 -height 20 -bg blue] \
+	    [frame .f2 -width 20 -height 20 -bg red] -sticky nsew
+    place .p -width 40 -x 0 -y 0
+    update
+    set result [winfo width .f2]
+    destroy .p .f1 .f2
+    set result
+} 18
+test panedwindow-22.13 {ArrangePanes, last pane shrinks} {
+    panedwindow .p -showhandle false -borderwidth 0 -sashpad 0 -sashwidth 2 \
+            -orient vertical
+    .p add [frame .f1 -width 20 -height 20 -bg blue] \
+	    [frame .f2 -width 20 -height 20 -bg red] -sticky nsew
+    place .p -height 40 -x 0 -y 0
+    update
+    set result [winfo height .f2]
+    destroy .p .f1 .f2
+    set result
+} 18
+
 test panedwindow-23.1 {PanedWindowReqProc, react to slave geometry changes} {
     # Basically just want to make sure that the PanedWindowReqProc is called
     panedwindow .p -borderwidth 0 -sashpad 0 -sashwidth 2