From 9ab3acee18d906981cdeb2436a5ddb71ae5ea647 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Mon, 7 Jan 2019 04:29:45 +0100
Subject: [PATCH] Don't allow using "-" for unsigned entries in propgrid

The changes of 36f6f8ad49038089413dd5e3b3bee151ab78112c allowed using
"-" (and also "+") characters even for the unsigned properties, which
hadn't been the case before and doesn't seem desirable, so undo this
part of the changes.

See #1093.
---
 src/propgrid/props.cpp | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/propgrid/props.cpp b/src/propgrid/props.cpp
index ba3889d90e..d67d9012c7 100644
--- a/src/propgrid/props.cpp
+++ b/src/propgrid/props.cpp
@@ -162,8 +162,7 @@ wxNumericPropertyValidator::
 {
     long style = GetStyle();
 
-    // always allow plus and minus signs
-    wxString allowedChars("+-");
+    wxString allowedChars;
 
     switch ( base )
     {
@@ -185,7 +184,11 @@ wxNumericPropertyValidator::
             style |= wxFILTER_DIGITS;
     }
 
-    if ( numericType == Float )
+    if ( numericType == Signed )
+    {
+        allowedChars += wxS("-+");
+    }
+    else if ( numericType == Float )
     {
         allowedChars += wxS("eE");