diff options
Diffstat (limited to 'src/widgets/kernel/qstackedlayout.cpp')
-rw-r--r-- | src/widgets/kernel/qstackedlayout.cpp | 78 |
1 files changed, 23 insertions, 55 deletions
diff --git a/src/widgets/kernel/qstackedlayout.cpp b/src/widgets/kernel/qstackedlayout.cpp index 0412dc188d..04eacf1d41 100644 --- a/src/widgets/kernel/qstackedlayout.cpp +++ b/src/widgets/kernel/qstackedlayout.cpp @@ -1,41 +1,5 @@ -/**************************************************************************** -** -** 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 "qstackedlayout.h" #include "qlayout_p.h" @@ -44,6 +8,10 @@ #include "private/qwidget_p.h" #include "private/qlayoutengine_p.h" +#include <QtCore/qpointer.h> + +#include <memory> + QT_BEGIN_NAMESPACE class QStackedLayoutPrivate : public QLayoutPrivate @@ -61,11 +29,11 @@ QLayoutItem* QStackedLayoutPrivate::replaceAt(int idx, QLayoutItem *newitem) { Q_Q(QStackedLayout); if (idx < 0 || idx >= list.size() || !newitem) - return 0; + return nullptr; QWidget *wdg = newitem->widget(); if (Q_UNLIKELY(!wdg)) { qWarning("QStackedLayout::replaceAt: Only widgets can be added"); - return 0; + return nullptr; } QLayoutItem *orgitem = list.at(idx); list.replace(idx, newitem); @@ -154,7 +122,7 @@ QLayoutItem* QStackedLayoutPrivate::replaceAt(int idx, QLayoutItem *newitem) \sa addWidget(), insertWidget() */ QStackedLayout::QStackedLayout() - : QLayout(*new QStackedLayoutPrivate, 0, 0) + : QLayout(*new QStackedLayoutPrivate, nullptr, nullptr) { } @@ -165,7 +133,7 @@ QStackedLayout::QStackedLayout() manage the geometry of its children. */ QStackedLayout::QStackedLayout(QWidget *parent) - : QLayout(*new QStackedLayoutPrivate, 0, parent) + : QLayout(*new QStackedLayoutPrivate, nullptr, parent) { } @@ -174,7 +142,7 @@ QStackedLayout::QStackedLayout(QWidget *parent) the given \a parentLayout. */ QStackedLayout::QStackedLayout(QLayout *parentLayout) - : QLayout(*new QStackedLayoutPrivate, parentLayout, 0) + : QLayout(*new QStackedLayoutPrivate, parentLayout, nullptr) { } @@ -200,7 +168,7 @@ QStackedLayout::~QStackedLayout() int QStackedLayout::addWidget(QWidget *widget) { Q_D(QStackedLayout); - return insertWidget(d->list.count(), widget); + return insertWidget(d->list.size(), widget); } /*! @@ -221,9 +189,9 @@ int QStackedLayout::insertWidget(int index, QWidget *widget) { Q_D(QStackedLayout); addChildWidget(widget); - index = qMin(index, d->list.count()); + index = qMin(index, d->list.size()); if (index < 0) - index = d->list.count(); + index = d->list.size(); QWidgetItem *wi = QLayoutPrivate::createWidgetItem(this, widget); d->list.insert(index, wi); invalidate(); @@ -264,12 +232,12 @@ QLayoutItem *QStackedLayout::takeAt(int index) { Q_D(QStackedLayout); if (index <0 || index >= d->list.size()) - return 0; + return nullptr; QLayoutItem *item = d->list.takeAt(index); if (index == d->index) { d->index = -1; - if ( d->list.count() > 0 ) { - int newIndex = (index == d->list.count()) ? index-1 : index; + if ( d->list.size() > 0 ) { + int newIndex = (index == d->list.size()) ? index-1 : index; setCurrentIndex(newIndex); } else { emit currentChanged(-1); @@ -307,7 +275,7 @@ void QStackedLayout::setCurrentIndex(int index) parent->setUpdatesEnabled(false); } - QPointer<QWidget> fw = parent ? parent->window()->focusWidget() : 0; + QPointer<QWidget> fw = parent ? parent->window()->focusWidget() : nullptr; const bool focusWasOnOldPage = fw && (prev && prev->isAncestorOf(fw)); if (prev) { @@ -421,13 +389,13 @@ int QStackedLayout::count() const */ void QStackedLayout::addItem(QLayoutItem *item) { + std::unique_ptr<QLayoutItem> guard(item); QWidget *widget = item->widget(); if (Q_UNLIKELY(!widget)) { qWarning("QStackedLayout::addItem: Only widgets can be added"); return; } addWidget(widget); - delete item; } /*! @@ -437,7 +405,7 @@ QSize QStackedLayout::sizeHint() const { Q_D(const QStackedLayout); QSize s(0, 0); - int n = d->list.count(); + int n = d->list.size(); for (int i = 0; i < n; ++i) if (QWidget *widget = d->list.at(i)->widget()) { @@ -458,7 +426,7 @@ QSize QStackedLayout::minimumSize() const { Q_D(const QStackedLayout); QSize s(0, 0); - int n = d->list.count(); + int n = d->list.size(); for (int i = 0; i < n; ++i) if (QWidget *widget = d->list.at(i)->widget()) @@ -478,7 +446,7 @@ void QStackedLayout::setGeometry(const QRect &rect) widget->setGeometry(rect); break; case StackAll: - if (const int n = d->list.count()) + if (const int n = d->list.size()) for (int i = 0; i < n; ++i) if (QWidget *widget = d->list.at(i)->widget()) widget->setGeometry(rect); @@ -565,7 +533,7 @@ void QStackedLayout::setStackingMode(StackingMode stackingMode) return; d->stackingMode = stackingMode; - const int n = d->list.count(); + const int n = d->list.size(); if (n == 0) return; |