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28
29
30#include <QtTest/QtTest>
31
32#include <qcoreapplication.h>
33#include <qdebug.h>
34#include <qstackedwidget.h>
35#include <qpushbutton.h>
36#include <QHBoxLayout>
37#include <qlineedit.h>
38
39class tst_QStackedWidget : public QObject
40{
41Q_OBJECT
42
43public:
44 tst_QStackedWidget();
45 virtual ~tst_QStackedWidget();
46
47private slots:
48 void getSetCheck();
49 void testMinimumSize();
50 void dynamicPages();
51};
52
53tst_QStackedWidget::tst_QStackedWidget()
54{
55}
56
57tst_QStackedWidget::~tst_QStackedWidget()
58{
59}
60
61// Testing that stackedwidget respect the minimum size of it's contents (task 95319)
62void tst_QStackedWidget::testMinimumSize()
63{
64 QWidget w;
65 QStackedWidget sw(&w);
66 QPushButton button("Text", &sw);
67 sw.addWidget(w: &button);
68 QHBoxLayout hboxLayout;
69 hboxLayout.addWidget(&sw);
70 w.setLayout(&hboxLayout);
71 w.show();
72 QVERIFY(w.minimumSize() != QSize(0, 0));
73}
74
75// Testing get/set functions
76void tst_QStackedWidget::getSetCheck()
77{
78 QStackedWidget obj1;
79 // int QStackedWidget::currentIndex()
80 // void QStackedWidget::setCurrentIndex(int)
81 obj1.setCurrentIndex(0);
82 QCOMPARE(-1, obj1.currentIndex());
83 obj1.setCurrentIndex(INT_MIN);
84 QCOMPARE(-1, obj1.currentIndex());
85 obj1.setCurrentIndex(INT_MAX);
86 QCOMPARE(-1, obj1.currentIndex());
87
88 // QWidget * QStackedWidget::currentWidget()
89 // void QStackedWidget::setCurrentWidget(QWidget *)
90 QWidget *var2 = new QWidget();
91 obj1.addWidget(w: var2);
92 obj1.setCurrentWidget(var2);
93 QCOMPARE(var2, obj1.currentWidget());
94
95// Disabled, task to fix is 128939.
96#if 0
97 // Layouts assert on any unknown widgets here, 0-pointers included.
98 // This seems wrong behavior, since the setCurrentIndex(int), which
99 // is really a convenience function for setCurrentWidget(QWidget*),
100 // has no problem handling out-of-bounds indices.
101 // ("convenience function" => "just another way of achieving the
102 // same goal")
103 obj1.setCurrentWidget((QWidget *)0);
104 QCOMPARE(obj1.currentWidget(), var2);
105#endif
106 delete var2;
107}
108
109// QTBUG-18242, a widget that deletes its children in hideEvent().
110// This caused a crash in QStackedLayout::setCurrentIndex() since
111// the focus widget was destroyed while hiding the previous page.
112class TestPage : public QWidget
113{
114public:
115 TestPage (bool staticWidgets = false) : QWidget(0), m_staticWidgets(staticWidgets)
116 {
117 new QVBoxLayout (this);
118 }
119
120 ~TestPage() {
121 destroyWidgets();
122 }
123
124 void setN(int n)
125 {
126 m_n = n;
127 if (m_staticWidgets)
128 createWidgets();
129 }
130
131 virtual void showEvent (QShowEvent *)
132 {
133 if (!m_staticWidgets)
134 createWidgets();
135 }
136
137 virtual void hideEvent (QHideEvent *)
138 {
139 if (!m_staticWidgets)
140 destroyWidgets();
141 }
142
143private:
144 void createWidgets() {
145 for (int i = 0; i < m_n; ++i) {
146 QLineEdit *le = new QLineEdit(this);
147 le->setObjectName(QLatin1String("lineEdit") + QString::number(i));
148 layout ()->addWidget(w: le);
149 m_les << le;
150 }
151 }
152
153 void destroyWidgets()
154 {
155 qDeleteAll(c: m_les);
156 m_les.clear ();
157 }
158
159 int m_n;
160 const bool m_staticWidgets;
161 QList<QLineEdit*> m_les;
162};
163
164void tst_QStackedWidget::dynamicPages()
165{
166 if (QGuiApplication::platformName().startsWith(s: QLatin1String("wayland"), cs: Qt::CaseInsensitive))
167 QSKIP("Wayland: This fails. Figure out why.");
168
169 QStackedWidget stackedWidget;
170 QStackedWidget *sw = &stackedWidget;
171
172 TestPage *w1 = new TestPage(true);
173 w1->setN(3);
174
175 TestPage *w2 = new TestPage;
176 w2->setN(3);
177
178 sw->addWidget(w: w1);
179 sw->addWidget(w: w2);
180
181 QLineEdit *le11 = w1->findChild<QLineEdit*>(aName: QLatin1String("lineEdit1"));
182 le11->setFocus(); // set focus to second widget in the page
183 sw->resize(w: 200, h: 200);
184 sw->show();
185 qApp->setActiveWindow(sw);
186 QVERIFY(QTest::qWaitForWindowActive(sw));
187 QTRY_COMPARE(QApplication::focusWidget(), le11);
188
189 sw->setCurrentIndex(1);
190 QLineEdit *le22 = w2->findChild<QLineEdit*>(aName: QLatin1String("lineEdit2"));
191 le22->setFocus();
192 QTRY_COMPARE(QApplication::focusWidget(), le22);
193 // Going back should move focus back to le11
194 sw->setCurrentIndex(0);
195 QTRY_COMPARE(QApplication::focusWidget(), le11);
196
197}
198
199QTEST_MAIN(tst_QStackedWidget)
200#include "tst_qstackedwidget.moc"
201

source code of qtbase/tests/auto/widgets/widgets/qstackedwidget/tst_qstackedwidget.cpp