From 0ca1fc173818c155b3679b76da208fa9a2185ea1 Mon Sep 17 00:00:00 2001
From: Shawn Rutledge <shawn.rutledge@digia.com>
Date: Tue, 24 Jun 2014 15:42:47 +0200
Subject: GIF decoding: do not seek() if the image is loaded over the network

This suppresses the warning
QIODevice::seek: Cannot call seek on a sequential device

Task-number: QTBUG-39217
Change-Id: Ie7b0845c760ae6fc857d02bf9ec5c5adb24fb631
Reviewed-by: aavit <eirik.aavitsland@digia.com>
---
 src/gui/image/qgifhandler.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/gui/image/qgifhandler.cpp b/src/gui/image/qgifhandler.cpp
index 19b838240f..91588edd50 100644
--- a/src/gui/image/qgifhandler.cpp
+++ b/src/gui/image/qgifhandler.cpp
@@ -674,7 +674,7 @@ void QGIFFormat::scan(QIODevice *device, QVector<QSize> *imageSizes, int *loopCo
         return;
 
     qint64 oldPos = device->pos();
-    if (!device->seek(0))
+    if (device->isSequential() || !device->seek(0))
         return;
 
     int colorCount = 0;
-- 
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