From b143ab112da42b4f16bab11733b7353c0f555689 Mon Sep 17 00:00:00 2001
From: Riccardo Mottola <rm@gnu.org>
Date: Tue, 14 Apr 2020 12:30:34 +0200
Subject: [PATCH] Cast to NSProgressIndiciator so corret isVertical method is
 choosen by compiler. Add check before casting.

---
 ChangeLog                                           |  5 +++++
 .../GormProgressIndicatorAttributesInspector.m      | 13 ++++++++-----
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 53462377..f9c683df 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2020-04-14 Riccardo Mottola <rm@gnu.org>
+
+	* Palettes/2Controls/GormProgressIndicatorAttributesInspector.m
+	Cast to NSProgressIndiciator so corret isVertical method is choosen by compiler. Add check before casting.
+
 2020-03-29 Fred Kiefer <FredKiefer@gmx.de>
 
 	* GormCore/GormDocument.m: Remove NSNibConnector duplicating code
diff --git a/Palettes/2Controls/GormProgressIndicatorAttributesInspector.m b/Palettes/2Controls/GormProgressIndicatorAttributesInspector.m
index 99488597..0de712fe 100644
--- a/Palettes/2Controls/GormProgressIndicatorAttributesInspector.m
+++ b/Palettes/2Controls/GormProgressIndicatorAttributesInspector.m
@@ -1,7 +1,7 @@
 /*
   GormProgressIndicatorAttributesInspector.m
 
-   Copyright (C) 2001-2005 Free Software Foundation, Inc.
+   Copyright (C) 2001-2020 Free Software Foundation, Inc.
 
    Author:  Adam Fedor <fedor@gnu.org>
               Laurent Julliard <laurent@julliard-online.org>
@@ -94,10 +94,13 @@
 {
   if ( object == nil ) 
     return;
-  [indeterminate setState: [object isIndeterminate]?NSOnState:NSOffState];
-  [vertical setState: [object isVertical] ? NSOnState:NSOffState];
-  [minValue setIntValue: [object minValue]];
-  [maxValue setIntValue: [object maxValue]];
+  if ( ![object isKindOfClass:[NSProgressIndicator class]] )
+    NSLog ( @"GormNSProgressIndicatorInspector: Unexpected class of object; %@", [object class]);
+
+  [indeterminate setState: [(NSProgressIndicator *)object isIndeterminate]?NSOnState:NSOffState];
+  [vertical setState: [(NSProgressIndicator *)object isVertical] ? NSOnState:NSOffState];
+  [minValue setIntValue: [(NSProgressIndicator *)object minValue]];
+  [maxValue setIntValue: [(NSProgressIndicator *)object maxValue]];
 
   [super revert:sender];
 }