From 0cd68ff8f81adc4673a8cd1ee33362fdf39a8d29 Mon Sep 17 00:00:00 2001
From: cacaodev <cacaodev@gmail.com>
Date: Sat, 14 Mar 2015 20:02:43 +0100
Subject: [PATCH] FIXED: selection update when segmentCount changes n->0 or
 0->n

If the segment count is set to 0, the [self selectedSegment] now
correctly return -1 (like cocoa).
If the segment count is set to n from 0, the first segment is selected.
See manual test.
---
 AppKit/CPSegmentedControl.j | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/AppKit/CPSegmentedControl.j b/AppKit/CPSegmentedControl.j
index fca46a536..cb2c025c5 100644
--- a/AppKit/CPSegmentedControl.j
+++ b/AppKit/CPSegmentedControl.j
@@ -180,7 +180,11 @@ CPSegmentSwitchTrackingMomentary = 2;
 {
     var count = [self segmentCount];
 
-    if (_selectedSegment >= count)
+    if (count == 0)
+        _selectedSegment = -1;
+    else if (_selectedSegment < 0)
+        [self setSelectedSegment:0];
+    else if (_selectedSegment >= count)
         [self setSelectedSegment:count - 1];
 }