From 4a2e297b4f091d212b184352fd2d3563c5ea5286 Mon Sep 17 00:00:00 2001
From: Pelle Johnsen <pelle.johnsen@gmail.com>
Date: Wed, 20 Aug 2014 11:16:43 +0200
Subject: [PATCH] Replacement for QWS_DBLCLICK_DISTANCE

Add QT_DBL_CLICK_DIST to replace QWS_DBLCLICK_DISTANCE for controlling
the distance for detecting double clicks, which can be very useful on
embedded devices

[ChangeLog][QtGui] environment variable QT_DBL_CLICK_DIST
customizes the amount of movement allowed when detecting a double click.

Task-number: QTBUG-40841
Change-Id: I0a7534ad6cd6387d127eb49021a92d414d45670e
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
---
 src/gui/kernel/qplatformtheme.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/gui/kernel/qplatformtheme.cpp b/src/gui/kernel/qplatformtheme.cpp
index d3d3d3c222..d1b1106b28 100644
--- a/src/gui/kernel/qplatformtheme.cpp
+++ b/src/gui/kernel/qplatformtheme.cpp
@@ -508,7 +508,11 @@ QVariant QPlatformTheme::defaultThemeHint(ThemeHint hint)
     case MousePressAndHoldInterval:
         return QVariant(800);
     case MouseDoubleClickDistance:
-        return QVariant(5);
+        {
+            bool ok = false;
+            int dist = qgetenv("QT_DBL_CLICK_DIST").toInt(&ok);
+            return QVariant(ok ? dist : 5);
+        }
     }
     return QVariant();
 }