2 files changed, 113 insertions, 0 deletions
diff --git a/tests/manual/widgets/itemviews/qheaderview/qheaderviewtest.pro b/tests/manual/widgets/itemviews/qheaderview/qheaderviewtest.pro
new file mode 100644
index 0000000000..ac40c6e9e1
--- /dev/null
+++ b/tests/manual/widgets/itemviews/qheaderview/qheaderviewtest.pro
@@ -0,0 +1,3 @@
+TEMPLATE = app
+SOURCES = qheaderviewtest1.cpp
+QT += widgets
diff --git a/tests/manual/widgets/itemviews/qheaderview/qheaderviewtest1.cpp b/tests/manual/widgets/itemviews/qheaderview/qheaderviewtest1.cpp
new file mode 100644
index 0000000000..48f592202e
--- /dev/null
+++ b/tests/manual/widgets/itemviews/qheaderview/qheaderviewtest1.cpp
@@ -0,0 +1,110 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Thorbjørn Lund Martsum - tmartsum[at]gmail.com
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia 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.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtWidgets/QtWidgets>
+
+class SomeHandler : public QObject
+{
+    Q_OBJECT
+    QHeaderView *m_hv;
+    QTableView *m_tv;
+public:
+    SomeHandler(QHeaderView *hv, QTableView *tv);
+public slots:
+    void slotSectionResized(int, int, int);
+};
+
+SomeHandler::SomeHandler(QHeaderView *hv, QTableView *tv)
+{
+    m_hv = hv;
+    m_tv = tv;
+    m_tv->setHorizontalScrollMode(QAbstractItemView::ScrollPerPixel);
+    connect(hv, SIGNAL(sectionResized(int, int, int)), this, SLOT(slotSectionResized(int, int, int)));
+}
+void SomeHandler::slotSectionResized(int logsection, int oldsize, int newsize)
+{
+    int offset = m_hv->offset();
+    m_tv->setUpdatesEnabled(false);
+    // Do some manual resizing - lets make every section having the new size.
+    m_hv->blockSignals(true);
+    for (int u = 0; u < m_hv->count(); ++u)
+        m_hv->resizeSection(u, newsize);
+    m_hv->blockSignals(false);
+
+    // Adjust offset and scrollbar. Maybe it isn't 100% perfect
+    // but proof of concept
+    // The test has sense without the define, too.
+#define DO_CORRECT_OFFSET_AND_SB
+#ifdef  DO_CORRECT_OFFSET_AND_SB
+    int leftRemoved =  (m_hv->visualIndex(logsection)) * (oldsize - newsize);
+    int newoffset = offset - leftRemoved;
+    if (newoffset < 0)
+        newoffset = 0;
+
+    if (newoffset > 0 && newoffset >= m_hv->count() * newsize - m_tv->viewport()->width())
+        m_hv->setOffsetToLastSection();
+    else
+        m_hv->setOffset(newoffset);
+
+    m_tv->horizontalScrollBar()->blockSignals(true);
+    m_tv->horizontalScrollBar()->setRange(0, m_hv->count() * newsize - m_tv->viewport()->width() );
+    m_tv->horizontalScrollBar()->setValue(newoffset);
+    m_tv->horizontalScrollBar()->blockSignals(false);
+#endif
+    m_tv->setUpdatesEnabled(true);
+}
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+    QTableView tv;
+    QStandardItemModel m;
+    m.setRowCount(10);
+    m.setColumnCount(36);
+    tv.setModel(&m);
+    SomeHandler handler(tv.horizontalHeader(), &tv);
+    tv.horizontalHeader()->setDefaultSectionSize(200);
+    tv.showMaximized();
+    tv.horizontalScrollBar()->setValue(tv.horizontalScrollBar()->maximum());
+    app.exec();
+}
+
+#include "qheaderviewtest1.moc"