File 0026-Don-t-update-the-input-method-if-the-im-hints-haven-.patch of Package qt

From c0cf8ba6a93d303beae3f52608ad33f36a7cfc41 Mon Sep 17 00:00:00 2001
From: Andrew den Exter <andrew.den.exter@jollamobile.com>
Date: Mon, 21 Jan 2013 11:08:47 +1000
Subject: [PATCH 26/29] Don't update the input method if the im hints haven't
 changed.

Depending on the implementation updating an input method can be
expensive and various widgets will at times call setInputMethodHints
with unchanged hints.  QGraphicsView being a notable offender due to
the complexity of the circumstances in which the hints can change.

Skipping the update here ensures the input method isn't updated
unnecessarily for all widgets.

Task-number: QTBUG-19854
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
(cherry picked from commit 40e6b1d0b8c1804dfb33032fa70b6604b91f6f90)

Change-Id: I36ae35585ee20a4e01ca0d62c71e896dbdb51a3f
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
---
 src/gui/kernel/qwidget.cpp |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index cb2abd2..daeae52 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -9415,6 +9415,8 @@ void QWidget::setInputMethodHints(Qt::InputMethodHints hints)
 {
 #ifndef QT_NO_IM
     Q_D(QWidget);
+    if (d->imHints == hints)
+        return;
     d->imHints = hints;
     // Optimization to update input context only it has already been created.
     if (d->ic || qApp->d_func()->inputContext) {
-- 
1.7.10.3