qt5base-lts/tests/auto/qstackedlayout/tst_qstackedlayout.cpp

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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** 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 <QtTest/QtTest>
#include <QLineEdit>
#include <QStackedLayout>
#include <qapplication.h>
#include <qwidget.h>
#include <QPushButton>
#include "../../shared/util.h"
//TESTED_CLASS=
//TESTED_FILES=gui/kernel/qlayout.cpp gui/kernel/qlayout.h
class tst_QStackedLayout : public QObject
{
Q_OBJECT
public:
tst_QStackedLayout();
virtual ~tst_QStackedLayout();
public slots:
void initTestCase();
void cleanupTestCase();
void init();
void cleanup();
private slots:
void getSetCheck();
void testCase();
void deleteCurrent();
void removeWidget();
void keepFocusAfterSetCurrent();
private:
QWidget *testWidget;
};
// Testing get/set functions
void tst_QStackedLayout::getSetCheck()
{
QStackedLayout obj1;
// int QStackedLayout::currentIndex()
// void QStackedLayout::setCurrentIndex(int)
obj1.setCurrentIndex(0);
QCOMPARE(-1, obj1.currentIndex());
obj1.setCurrentIndex(INT_MIN);
QCOMPARE(-1, obj1.currentIndex());
obj1.setCurrentIndex(INT_MAX);
QCOMPARE(-1, obj1.currentIndex());
// QWidget * QStackedLayout::currentWidget()
// void QStackedLayout::setCurrentWidget(QWidget *)
QWidget *var2 = new QWidget();
obj1.addWidget(var2);
obj1.setCurrentWidget(var2);
QCOMPARE(var2, obj1.currentWidget());
obj1.setCurrentWidget((QWidget *)0);
QCOMPARE(obj1.currentWidget(), var2);
delete var2;
}
tst_QStackedLayout::tst_QStackedLayout()
: testWidget(0)
{
}
tst_QStackedLayout::~tst_QStackedLayout()
{
}
void tst_QStackedLayout::initTestCase()
{
}
void tst_QStackedLayout::cleanupTestCase()
{
}
void tst_QStackedLayout::init()
{
if (testWidget) {
delete testWidget;
testWidget = 0;
}
testWidget = new QWidget(0);
testWidget->resize( 200, 200 );
testWidget->show();
// make sure the tests work with focus follows mouse
QCursor::setPos(testWidget->geometry().center());
testWidget->activateWindow();
QApplication::syncX();
QTest::qWait(250);
}
void tst_QStackedLayout::cleanup()
{
delete testWidget;
testWidget = 0;
}
void tst_QStackedLayout::testCase()
{
QStackedLayout onStack(testWidget);
QStackedLayout *testLayout = &onStack;
testWidget->setLayout(testLayout);
QSignalSpy spy(testLayout,SIGNAL(currentChanged(int)));
// Nothing in layout
QCOMPARE(testLayout->currentIndex(), -1);
QCOMPARE(testLayout->currentWidget(), static_cast<QWidget*>(0));
QCOMPARE(testLayout->count(), 0);
// One widget added to layout
QWidget *w1 = new QWidget(testWidget);
testLayout->addWidget(w1);
QCOMPARE(spy.count(), 1);
QCOMPARE(spy.at(0).at(0).toInt(), 0);
spy.clear();
QCOMPARE(testLayout->currentIndex(), 0);
QCOMPARE(testLayout->currentWidget(), w1);
QCOMPARE(testLayout->count(), 1);
// Another widget added to layout
QWidget *w2 = new QWidget(testWidget);
testLayout->addWidget(w2);
QCOMPARE(testLayout->currentIndex(), 0);
QCOMPARE(testLayout->currentWidget(), w1);
QCOMPARE(testLayout->indexOf(w2), 1);
QCOMPARE(testLayout->count(), 2);
// Change the current index
testLayout->setCurrentIndex(1);
QCOMPARE(spy.count(), 1);
QCOMPARE(spy.at(0).at(0).toInt(), 1);
spy.clear();
QCOMPARE(testLayout->currentIndex(), 1);
QCOMPARE(testLayout->currentWidget(), w2);
// First widget removed from layout
testLayout->removeWidget(w1);
QCOMPARE(testLayout->currentIndex(), 0);
QCOMPARE(testLayout->currentWidget(), w2);
QCOMPARE(testLayout->count(), 1);
// Second widget removed from layout; back to nothing
testLayout->removeWidget(w2);
QCOMPARE(spy.count(), 1);
QCOMPARE(spy.at(0).at(0).toInt(), -1);
spy.clear();
QCOMPARE(testLayout->currentIndex(), -1);
QCOMPARE(testLayout->currentWidget(), static_cast<QWidget*>(0));
QCOMPARE(testLayout->count(), 0);
// Another widget inserted at current index.
// Current index should become current index + 1, but the
// current widget should stay the same
testLayout->addWidget(w1);
QCOMPARE(testLayout->currentIndex(), 0);
QCOMPARE(testLayout->currentWidget(), w1);
testLayout->insertWidget(0, w2);
QCOMPARE(testLayout->currentIndex(), 1);
QCOMPARE(testLayout->currentWidget(), w1);
QVERIFY(w1->isVisible());
QVERIFY(!w2->isVisible());
testLayout->setCurrentWidget(w2);
// Another widget added, so we have: w2, w1, w3 with w2 current
QWidget *w3 = new QWidget(testWidget);
testLayout->addWidget(w3);
QCOMPARE(testLayout->indexOf(w2), 0);
QCOMPARE(testLayout->indexOf(w1), 1);
QCOMPARE(testLayout->indexOf(w3), 2);
// Set index to 1 and remove that widget (w1).
// Then, current index should still be 1, but w3
// should be the new current widget.
testLayout->setCurrentIndex(1);
testLayout->removeWidget(w1);
QCOMPARE(testLayout->currentIndex(), 1);
QCOMPARE(testLayout->currentWidget(), w3);
QVERIFY(w3->isVisible());
// Remove the current widget (w3).
// Since it's the last one in the list, current index should now
// become 0 and w2 becomes the current widget.
testLayout->removeWidget(w3);
QCOMPARE(testLayout->currentIndex(), 0);
QCOMPARE(testLayout->currentWidget(), w2);
QVERIFY(w2->isVisible());
// Make sure index is decremented when we remove a widget at index < current index
testLayout->addWidget(w1);
testLayout->addWidget(w3);
testLayout->setCurrentIndex(2);
testLayout->removeWidget(w2); // At index 0
QCOMPARE(testLayout->currentIndex(), 1);
QCOMPARE(testLayout->currentWidget(), w3);
QVERIFY(w3->isVisible());
testLayout->removeWidget(w1); // At index 0
QCOMPARE(testLayout->currentIndex(), 0);
QCOMPARE(testLayout->currentWidget(), w3);
QVERIFY(w3->isVisible());
testLayout->removeWidget(w3);
QCOMPARE(testLayout->currentIndex(), -1);
QCOMPARE(testLayout->currentWidget(), static_cast<QWidget*>(0));
}
void tst_QStackedLayout::deleteCurrent()
{
QStackedLayout *testLayout = new QStackedLayout(testWidget);
QWidget *w1 = new QWidget;
testLayout->addWidget(w1);
QWidget *w2 = new QWidget;
testLayout->addWidget(w2);
QCOMPARE(testLayout->currentWidget(), w1);
delete testLayout->currentWidget();
QCOMPARE(testLayout->currentWidget(), w2);
}
void tst_QStackedLayout::removeWidget()
{
if (testWidget->layout()) delete testWidget->layout();
QVBoxLayout *vbox = new QVBoxLayout(testWidget);
QPushButton *top = new QPushButton("top", testWidget); //add another widget that can receive focus
top->setObjectName("top");
vbox->addWidget(top);
QStackedLayout *testLayout = new QStackedLayout();
QPushButton *w1 = new QPushButton("1st", testWidget);
w1->setObjectName("1st");
testLayout->addWidget(w1);
QPushButton *w2 = new QPushButton("2nd", testWidget);
w2->setObjectName("2nd");
testLayout->addWidget(w2);
vbox->addLayout(testLayout);
top->setFocus();
QTest::qWait(100);
top->activateWindow();
QTest::qWait(100);
int i =0;
for (;;) {
if (QApplication::focusWidget() == top)
break;
else if (i >= 5)
QSKIP("Can't get focus", SkipSingle);
QTest::qWait(100);
++i;
}
QCOMPARE(QApplication::focusWidget(), static_cast<QWidget *>(top));
// focus should stay at the 'top' widget
testLayout->removeWidget(w1);
QCOMPARE(QApplication::focusWidget(), static_cast<QWidget *>(top));
}
class LineEdit : public QLineEdit
{
public:
LineEdit() : hasFakeEditFocus(false)
{ }
bool hasFakeEditFocus;
protected:
bool isSingleFocusWidget() const
{
const QWidget *w = this;
while ((w = w->nextInFocusChain()) != this) {
if (w->isVisible() && static_cast<const QWidget*>(w->focusProxy()) != this
&& w->focusPolicy() & Qt::TabFocus) {
return false;
}
}
return true;
}
void focusInEvent(QFocusEvent *event)
{
QLineEdit::focusInEvent(event);
hasFakeEditFocus = isSingleFocusWidget();
}
void focusOutEvent(QFocusEvent *event)
{
hasFakeEditFocus = false;
QLineEdit::focusOutEvent(event);
}
};
void tst_QStackedLayout::keepFocusAfterSetCurrent()
{
if (testWidget->layout()) delete testWidget->layout();
QStackedLayout *stackLayout = new QStackedLayout(testWidget);
testWidget->setFocusPolicy(Qt::NoFocus);
LineEdit *edit1 = new LineEdit;
LineEdit *edit2 = new LineEdit;
stackLayout->addWidget(edit1);
stackLayout->addWidget(edit2);
stackLayout->setCurrentIndex(0);
testWidget->show();
QApplication::setActiveWindow(testWidget);
QTest::qWaitForWindowShown(testWidget);
QApplication::processEvents();
edit1->setFocus();
edit1->activateWindow();
QTest::qWait(25);
QTRY_VERIFY(edit1->hasFocus());
stackLayout->setCurrentIndex(1);
QVERIFY(!edit1->hasFocus());
QVERIFY(edit2->hasFocus());
QVERIFY(edit2->hasFakeEditFocus);
}
QTEST_MAIN(tst_QStackedLayout)
#include "tst_qstackedlayout.moc"