diff options
author | Dan Vrátil <dan@progdan.cz> | 2014-07-29 11:11:11 +0200 |
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committer | Albert Astals Cid <albert.astals@canonical.com> | 2014-07-30 13:17:35 +0200 |
commit | 47ffb30a69285d6ced1287f14ff5842a298e60e0 (patch) | |
tree | 9f83fcf67d3d0baa9400a0452bd867000a959a97 /tests/auto/quick/qquicklistview/randomsortmodel.cpp | |
parent | 872008a0e053d739636e4ad8ecbbc941b3fdc99d (diff) |
Fix QQmlDelegateModel getting out of sync
Fixes a regression introduced by a0aefe1, which caused that the
source data model and adaptorModel could sometimes get out of
sync.
Change-Id: Ia6b5fc380cc6cf6549ae857e6da54e088a5dadb5
Reviewed-by: Alan Alpert (Personal) <416365416c@gmail.com>
Diffstat (limited to 'tests/auto/quick/qquicklistview/randomsortmodel.cpp')
-rw-r--r-- | tests/auto/quick/qquicklistview/randomsortmodel.cpp | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/tests/auto/quick/qquicklistview/randomsortmodel.cpp b/tests/auto/quick/qquicklistview/randomsortmodel.cpp new file mode 100644 index 0000000000..e9082e39c9 --- /dev/null +++ b/tests/auto/quick/qquicklistview/randomsortmodel.cpp @@ -0,0 +1,107 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the test suite 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 Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "randomsortmodel.h" + +RandomSortModel::RandomSortModel(QObject* parent): + QAbstractListModel(parent) +{ + for (int i = 0; i < 10; ++i) { + mData.append(qMakePair(QString::fromLatin1("Item %1").arg(i), i * 10)); + } +} + +QHash<int, QByteArray> RandomSortModel::roleNames() const +{ + QHash<int,QByteArray> roles = QAbstractItemModel::roleNames(); + roles[Qt::UserRole] = "SortRole"; + return roles; +} + + +int RandomSortModel::rowCount(const QModelIndex& parent) const +{ + if (!parent.isValid()) + return mData.count(); + + return 0; +} + +QVariant RandomSortModel::data(const QModelIndex& index, int role) const +{ + if (!index.isValid()) { + return QVariant(); + } + + if (index.row() >= mData.count()) { + return QVariant(); + } + + if (role == Qt::DisplayRole) { + return QString::fromLatin1("%1 (weight %2)").arg(mData[index.row()].first).arg(mData[index.row()].second); + } else if (role == Qt::UserRole) { + return mData[index.row()].second; + } + + return QVariant(); +} + +void RandomSortModel::randomize() +{ + const int row = qrand() % mData.count(); + int random; + bool exists = false; + // Make sure we won't end up with two items with the same weight, as that + // would make unit-testing much harder + do { + exists = false; + random = qrand() % (mData.count() * 10); + QList<QPair<QString, int> >::ConstIterator iter, end; + for (iter = mData.constBegin(), end = mData.constEnd(); iter != end; ++iter) { + if ((*iter).second == random) { + exists = true; + break; + } + } + } while (exists); + mData[row].second = random; + Q_EMIT dataChanged(index(row, 0), index(row, 0)); +} |