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/****************************************************************************
**
** Copyright (C) 2013 Thorbjørn Martsum - tmartsum[at]gmail.com
** Contact: http://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 http://www.qt.io/terms-conditions. For further
** information use the contact form at http://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 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QGridLayout>
#include <QFormLayout>
#include <QStackedLayout>
#include <QPushButton>
#include <QLabel>
#include <QApplication>
class ReplaceButton : public QPushButton
{
Q_OBJECT
public:
ReplaceButton(const QString &text = QString("click to replace")) : QPushButton(text)
{
static int v = 0;
++v;
QString txt = QString("click to replace %1").arg(v);
setText(txt);
connect(this, SIGNAL(clicked()), this, SLOT(replace()));
}
protected slots:
void replace()
{
if (!parentWidget())
return;
static int n = 0;
++n;
if (parentWidget()->layout()->replaceWidget(this, new QLabel(QString("replaced(%1)").arg(n))))
deleteLater();
}
};
class StackButtonChange : public QPushButton
{
Q_OBJECT
public:
StackButtonChange(QStackedLayout *l) : QPushButton("stack wdg change")
{
sl = l;
connect(this, SIGNAL(clicked()), this, SLOT(changeWdg()));
}
protected slots:
void changeWdg()
{
int index = sl->indexOf(sl->currentWidget());
++index;
if (index >= sl->count())
index = 0;
sl->setCurrentWidget(sl->itemAt(index)->widget());
sl->parentWidget()->update();
}
protected:
QStackedLayout *sl;
};
int main(int argc, char **argv) {
QApplication app(argc, argv);
QWidget wdg1;
QGridLayout *l1 = new QGridLayout();
l1->addWidget(new ReplaceButton(), 1, 1, 2, 2, Qt::AlignCenter);
l1->addWidget(new ReplaceButton(), 3, 1, 1, 1, Qt::AlignRight);
l1->addWidget(new ReplaceButton(), 1, 3, 1, 1, Qt::AlignLeft);
l1->addWidget(new ReplaceButton(), 2, 3, 1, 1, Qt::AlignLeft);
l1->addWidget(new ReplaceButton(), 3, 2, 1, 1, Qt::AlignRight);
wdg1.setLayout(l1);
wdg1.setWindowTitle("QGridLayout");
wdg1.setGeometry(100, 100, 100, 100);
wdg1.show();
QWidget wdg2;
QFormLayout *l2 = new QFormLayout();
l2->addRow(QString("Label1"), new ReplaceButton());
l2->addRow(QString("Label2"), new ReplaceButton());
l2->addRow(new ReplaceButton(), new ReplaceButton());
wdg2.setLayout(l2);
wdg2.setWindowTitle("QFormLayout");
wdg2.setGeometry(100 + wdg1.sizeHint().width() + 5, 100, 100, 100);
wdg2.show();
QWidget wdg3;
QBoxLayout *l3 = new QVBoxLayout(); // new QHBoxLayout()
QStackedLayout *sl = new QStackedLayout();
sl->addWidget(new ReplaceButton());
sl->addWidget(new ReplaceButton());
sl->addWidget(new ReplaceButton());
l3->addLayout(sl);
l3->addWidget(new StackButtonChange(sl));
l3->addWidget(new ReplaceButton());
l3->addWidget(new ReplaceButton());
wdg3.setLayout(l3);
wdg3.setWindowTitle("QStackedLayout + BoxLayout");
wdg3.setGeometry(100, 100 + wdg1.sizeHint().height() + 30, 100 , 100);
wdg3.show();
app.exec();
}
#include "main.moc"
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