diff options
Diffstat (limited to 'src/widgets/widgets/qabstractslider.cpp')
-rw-r--r-- | src/widgets/widgets/qabstractslider.cpp | 55 |
1 files changed, 13 insertions, 42 deletions
diff --git a/src/widgets/widgets/qabstractslider.cpp b/src/widgets/widgets/qabstractslider.cpp index 5ba50b6792..4e65fbac88 100644 --- a/src/widgets/widgets/qabstractslider.cpp +++ b/src/widgets/widgets/qabstractslider.cpp @@ -1,48 +1,12 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtWidgets module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only #include <qapplication.h> #include "qabstractslider.h" #include "qevent.h" #include "qabstractslider_p.h" #include "qdebug.h" -#ifndef QT_NO_ACCESSIBILITY +#if QT_CONFIG(accessibility) #include "qaccessible.h" #endif #include <limits.h> @@ -534,18 +498,25 @@ void QAbstractSlider::setValue(int value) value = d->bound(value); if (d->value == value && d->position == value) return; + + // delay signal emission until sliderChanged() has been called + const bool emitValueChanged = (value != d->value); d->value = value; + if (d->position != value) { d->position = value; if (d->pressed) - emit sliderMoved((d->position = value)); + emit sliderMoved(d->position); } -#ifndef QT_NO_ACCESSIBILITY +#if QT_CONFIG(accessibility) QAccessibleValueChangeEvent event(this, d->value); QAccessible::updateAccessibility(&event); #endif sliderChange(SliderValueChange); - emit valueChanged(value); + + if (emitValueChanged) + emit valueChanged(value); + } /*! |