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qt5.12.8/tests/auto/widgets/kernel/qformlayout/tst_qformlayout.cpp
lili b703135335 init
2025-08-26 22:57:23 +08:00

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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
#include <qlayout.h>
#include <qapplication.h>
#include <qwidget.h>
#include <qproxystyle.h>
#include <qsizepolicy.h>
#include <QtWidgets/QCheckBox>
#include <QtWidgets/QLabel>
#include <QtWidgets/QLineEdit>
#include <QtWidgets/QPushButton>
#include <QStyleFactory>
#include <QSharedPointer>
#include <QtTest/private/qtesthelpers_p.h>
using namespace QTestPrivate;
#include <qformlayout.h>
// ItemRole has enumerators for numerical values 0..2, thus the only
// valid numerical values for storing into an ItemRole variable are 0..3:
Q_CONSTEXPR QFormLayout::ItemRole invalidRole = QFormLayout::ItemRole(3);
struct QFormLayoutTakeRowResultHolder {
QFormLayoutTakeRowResultHolder(QFormLayout::TakeRowResult result) Q_DECL_NOTHROW
: labelItem(result.labelItem),
fieldItem(result.fieldItem)
{
}
~QFormLayoutTakeRowResultHolder()
{
// re-use a QFormLayout to recursively reap the QLayoutItems:
QFormLayout disposer;
if (labelItem)
disposer.setItem(0, QFormLayout::LabelRole, labelItem);
if (fieldItem)
disposer.setItem(0, QFormLayout::FieldRole, fieldItem);
}
QFormLayoutTakeRowResultHolder(QFormLayoutTakeRowResultHolder &&other) Q_DECL_NOTHROW
: labelItem(other.labelItem),
fieldItem(other.fieldItem)
{
other.labelItem = nullptr;
other.fieldItem = nullptr;
}
QFormLayoutTakeRowResultHolder &operator=(QFormLayoutTakeRowResultHolder &&other) Q_DECL_NOTHROW
{
swap(other);
return *this;
}
void swap(QFormLayoutTakeRowResultHolder &other) Q_DECL_NOTHROW
{
qSwap(labelItem, other.labelItem);
qSwap(fieldItem, other.fieldItem);
}
QLayoutItem *labelItem;
QLayoutItem *fieldItem;
};
class tst_QFormLayout : public QObject
{
Q_OBJECT
private slots:
void cleanup();
void rowCount();
void buddies();
void getItemPosition();
void wrapping();
void spacing();
void contentsRect();
void setFormStyle();
void setFieldGrowthPolicy();
void setRowWrapPolicy();
void setLabelAlignment();
void setFormAlignment();
/*
void setHorizontalSpacing(int spacing);
int horizontalSpacing() const;
void setVerticalSpacing(int spacing);
int verticalSpacing() const;
*/
void addRow();
void insertRow_QWidget_QWidget();
void insertRow_QWidget_QLayout();
void insertRow_QString_QWidget();
void insertRow_QString_QLayout();
void insertRow_QWidget();
void insertRow_QLayout();
void removeRow();
void removeRow_QWidget();
void removeRow_QLayout();
void takeRow();
void takeRow_QWidget();
void takeRow_QLayout();
void setWidget();
void setLayout();
/*
QLayoutItem *itemAt(int row, ItemRole role) const;
void getItemPosition(int index, int *rowPtr, ItemRole *rolePtr) const;
void getLayoutPosition(QWidget *widget, int *rowPtr, ItemRole *rolePtr) const;
void getItemPosition(QLayoutItem *item, int *rowPtr, ItemRole *rolePtr) const;
QWidget *labelForField(QWidget *widget) const;
QWidget *labelForField(QLayoutItem *item) const;
void addItem(QLayoutItem *item);
*/
void itemAt();
void takeAt();
void layoutAlone();
void replaceWidget();
/*
void setGeometry(const QRect &rect);
QSize minimumSize() const;
QSize sizeHint() const;
bool hasHeightForWidth() const;
int heightForWidth(int width) const;
Qt::Orientations expandingDirections() const;
*/
void taskQTBUG_27420_takeAtShouldUnparentLayout();
void taskQTBUG_40609_addingWidgetToItsOwnLayout();
void taskQTBUG_40609_addingLayoutToItself();
};
void tst_QFormLayout::cleanup()
{
QTRY_VERIFY(QApplication::topLevelWidgets().isEmpty());
}
void tst_QFormLayout::rowCount()
{
QWidget w;
QFormLayout *fl = new QFormLayout(&w);
fl->addRow(tr("Label 1"), new QLineEdit);
fl->addRow(tr("Label 2"), new QLineEdit);
fl->addRow(tr("Label 3"), new QLineEdit);
QCOMPARE(fl->rowCount(), 3);
fl->addRow(new QWidget);
fl->addRow(new QHBoxLayout);
QCOMPARE(fl->rowCount(), 5);
fl->insertRow(1, tr("Label 0.5"), new QLineEdit);
QCOMPARE(fl->rowCount(), 6);
//TODO: remove items
}
void tst_QFormLayout::buddies()
{
QWidget w;
QFormLayout *fl = new QFormLayout(&w);
//normal buddy case
QLineEdit *le = new QLineEdit;
fl->addRow(tr("Label 1"), le);
QLabel *label = qobject_cast<QLabel *>(fl->labelForField(le));
QVERIFY(label);
QWidget *lew = le;
QCOMPARE(label->buddy(), lew);
//null label
QLineEdit *le2 = new QLineEdit;
fl->addRow(0, le2);
QWidget *label2 = fl->labelForField(le2);
QVERIFY(!label2);
//no label
QLineEdit *le3 = new QLineEdit;
fl->addRow(le3);
QWidget *label3 = fl->labelForField(le3);
QVERIFY(!label3);
//TODO: empty label?
}
void tst_QFormLayout::getItemPosition()
{
QWidget w;
QFormLayout *fl = new QFormLayout(&w);
QList<QLabel*> labels;
QList<QLineEdit*> fields;
for (int i = 0; i < 5; ++i) {
labels.append(new QLabel(QLatin1String("Label " ) + QString::number(i + 1)));
fields.append(new QLineEdit);
fl->addRow(labels[i], fields[i]);
}
//a field
{
int row;
QFormLayout::ItemRole role;
fl->getWidgetPosition(fields[3], &row, &role);
QCOMPARE(row, 3);
QCOMPARE(role, QFormLayout::FieldRole);
}
//a label
{
int row;
QFormLayout::ItemRole role;
fl->getWidgetPosition(labels[2], &row, &role);
QCOMPARE(row, 2);
QCOMPARE(role, QFormLayout::LabelRole);
}
//a layout that's been inserted
{
QVBoxLayout *vbl = new QVBoxLayout;
fl->insertRow(2, "Label 1.5", vbl);
int row;
QFormLayout::ItemRole role;
fl->getLayoutPosition(vbl, &row, &role);
QCOMPARE(row, 2);
QCOMPARE(role, QFormLayout::FieldRole);
}
}
void tst_QFormLayout::wrapping()
{
QWidget w;
QFormLayout *fl = new QFormLayout(&w);
fl->setRowWrapPolicy(QFormLayout::WrapLongRows);
QLineEdit *le = new QLineEdit;
QLabel *lbl = new QLabel("A long label");
le->setMinimumWidth(200);
fl->addRow(lbl, le);
w.setFixedWidth(240);
w.setWindowTitle(QTest::currentTestFunction());
w.show();
#ifdef Q_OS_WINRT
QEXPECT_FAIL("", "setFixedWidth does not work on WinRT", Abort);
#endif
QCOMPARE(le->geometry().y() > lbl->geometry().y(), true);
//TODO: additional tests covering different wrapping cases
}
class CustomLayoutStyle : public QProxyStyle
{
Q_OBJECT
public:
CustomLayoutStyle() : QProxyStyle(QStyleFactory::create("windows"))
{
hspacing = 5;
vspacing = 10;
}
virtual int pixelMetric(PixelMetric metric, const QStyleOption * option = 0,
const QWidget * widget = 0 ) const;
int hspacing;
int vspacing;
};
int CustomLayoutStyle::pixelMetric(PixelMetric metric, const QStyleOption * option /*= 0*/,
const QWidget * widget /*= 0*/ ) const
{
switch (metric) {
case PM_LayoutHorizontalSpacing:
return hspacing;
case PM_LayoutVerticalSpacing:
return vspacing;
break;
default:
break;
}
return QProxyStyle::pixelMetric(metric, option, widget);
}
void tst_QFormLayout::spacing()
{
//TODO: confirm spacing behavior
QWidget w;
QScopedPointer<CustomLayoutStyle> style(new CustomLayoutStyle);
style->hspacing = 5;
style->vspacing = 10;
w.setStyle(style.data());
QFormLayout *fl = new QFormLayout(&w);
QCOMPARE(style->hspacing, fl->horizontalSpacing());
QCOMPARE(style->vspacing, fl->verticalSpacing());
//QCOMPARE(fl->spacing(), -1);
fl->setVerticalSpacing(5);
QCOMPARE(5, fl->horizontalSpacing());
QCOMPARE(5, fl->verticalSpacing());
//QCOMPARE(fl->spacing(), 5);
fl->setVerticalSpacing(-1);
QCOMPARE(style->hspacing, fl->horizontalSpacing());
QCOMPARE(style->vspacing, fl->verticalSpacing());
style->hspacing = 5;
style->vspacing = 5;
//QCOMPARE(fl->spacing(), 5);
fl->setHorizontalSpacing(20);
//QCOMPARE(fl->spacing(), -1);
style->vspacing = 20;
QCOMPARE(fl->horizontalSpacing(), 20);
QCOMPARE(fl->verticalSpacing(), 20);
//QCOMPARE(fl->spacing(), 20);
fl->setHorizontalSpacing(-1);
//QCOMPARE(fl->spacing(), -1);
style->hspacing = 20;
//QCOMPARE(fl->spacing(), 20);
// Do not assert if spacings are negative (QTBUG-34731)
style->vspacing = -1;
style->hspacing = -1;
QLabel *label = new QLabel(tr("Asserts"));
QCheckBox *checkBox = new QCheckBox(tr("Yes"));
fl->setWidget(0, QFormLayout::LabelRole, label);
fl->setWidget(1, QFormLayout::FieldRole, checkBox);
w.resize(200, 100);
w.setWindowTitle(QTest::currentTestFunction());
w.show();
QVERIFY(QTest::qWaitForWindowExposed(&w));
}
void tst_QFormLayout::contentsRect()
{
QWidget w;
setFrameless(&w);
QFormLayout form;
w.setLayout(&form);
form.addRow("Label", new QPushButton(&w));
w.setWindowTitle(QTest::currentTestFunction());
w.show();
QVERIFY(QTest::qWaitForWindowExposed(&w));
int l, t, r, b;
form.getContentsMargins(&l, &t, &r, &b);
QRect geom = form.geometry();
QCOMPARE(geom.adjusted(+l, +t, -r, -b), form.contentsRect());
}
class DummyMacStyle : public QCommonStyle
{
public:
virtual int styleHint ( StyleHint hint, const QStyleOption * option = 0, const QWidget * widget = 0, QStyleHintReturn * returnData = 0 ) const
{
switch(hint) {
case SH_FormLayoutFormAlignment:
return Qt::AlignHCenter | Qt::AlignTop;
case SH_FormLayoutLabelAlignment:
return Qt::AlignRight;
case SH_FormLayoutWrapPolicy:
return QFormLayout::DontWrapRows;
case SH_FormLayoutFieldGrowthPolicy:
return QFormLayout::FieldsStayAtSizeHint;
default:
return QCommonStyle::styleHint(hint, option, widget, returnData);
}
}
};
class DummyQtopiaStyle : public QCommonStyle
{
public:
virtual int styleHint ( StyleHint hint, const QStyleOption * option = 0, const QWidget * widget = 0, QStyleHintReturn * returnData = 0 ) const
{
switch(hint) {
case SH_FormLayoutFormAlignment:
return Qt::AlignLeft | Qt::AlignTop;
case SH_FormLayoutLabelAlignment:
return Qt::AlignRight;
case SH_FormLayoutWrapPolicy:
return QFormLayout::WrapLongRows;
case SH_FormLayoutFieldGrowthPolicy:
return QFormLayout::AllNonFixedFieldsGrow;
default:
return QCommonStyle::styleHint(hint, option, widget, returnData);
}
}
};
void tst_QFormLayout::setFormStyle()
{
QWidget widget;
QFormLayout layout;
widget.setLayout(&layout);
#if 0 // QT_NO_STYLE_PLASTIQUE
widget.setStyle(new QPlastiqueStyle());
QCOMPARE(layout.labelAlignment(), Qt::AlignRight);
QVERIFY(layout.formAlignment() == (Qt::AlignLeft | Qt::AlignTop));
QCOMPARE(layout.fieldGrowthPolicy(), QFormLayout::ExpandingFieldsGrow);
QCOMPARE(layout.rowWrapPolicy(), QFormLayout::DontWrapRows);
#endif
const QScopedPointer<QStyle> windowsStyle(QStyleFactory::create("windows"));
widget.setStyle(windowsStyle.data());
QCOMPARE(layout.labelAlignment(), Qt::AlignLeft);
QVERIFY(layout.formAlignment() == (Qt::AlignLeft | Qt::AlignTop));
QCOMPARE(layout.fieldGrowthPolicy(), QFormLayout::AllNonFixedFieldsGrow);
QCOMPARE(layout.rowWrapPolicy(), QFormLayout::DontWrapRows);
/* can't directly create mac style or qtopia style, since
this test is cross platform.. so create dummy styles that
return all the right stylehints.
*/
DummyMacStyle macStyle;
widget.setStyle(&macStyle);
QCOMPARE(layout.labelAlignment(), Qt::AlignRight);
QVERIFY(layout.formAlignment() == (Qt::AlignHCenter | Qt::AlignTop));
QCOMPARE(layout.fieldGrowthPolicy(), QFormLayout::FieldsStayAtSizeHint);
QCOMPARE(layout.rowWrapPolicy(), QFormLayout::DontWrapRows);
DummyQtopiaStyle qtopiaStyle;
widget.setStyle(&qtopiaStyle);
QCOMPARE(layout.labelAlignment(), Qt::AlignRight);
QVERIFY(layout.formAlignment() == (Qt::AlignLeft | Qt::AlignTop));
QCOMPARE(layout.fieldGrowthPolicy(), QFormLayout::AllNonFixedFieldsGrow);
QCOMPARE(layout.rowWrapPolicy(), QFormLayout::WrapLongRows);
}
void tst_QFormLayout::setFieldGrowthPolicy()
{
QWidget window;
QLineEdit fld1, fld2, fld3;
fld1.setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
fld2.setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
fld3.setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
QFormLayout layout;
layout.addRow("One:", &fld1);
layout.addRow("Two:", &fld2);
layout.addRow("Three:", &fld3);
window.setLayout(&layout);
window.resize(1000, 200);
for (int i = 0; i < 3; ++i) {
layout.setFieldGrowthPolicy(i == 0 ? QFormLayout::FieldsStayAtSizeHint :
i == 1 ? QFormLayout::ExpandingFieldsGrow :
QFormLayout::AllNonFixedFieldsGrow);
layout.activate();
if (i == 0) {
QCOMPARE(fld1.width(), fld2.width());
QCOMPARE(fld2.width(), fld3.width());
} else if (i == 1) {
QCOMPARE(fld1.width(), fld2.width());
QVERIFY(fld2.width() < fld3.width());
} else {
QVERIFY(fld1.width() < fld2.width());
QCOMPARE(fld2.width(), fld3.width());
}
}
}
void tst_QFormLayout::setRowWrapPolicy()
{
}
void tst_QFormLayout::setLabelAlignment()
{
}
void tst_QFormLayout::setFormAlignment()
{
}
void tst_QFormLayout::addRow()
{
QWidget topLevel;
QFormLayout *layout = new QFormLayout(&topLevel);
QWidget *w1 = new QWidget(&topLevel);
QWidget *w2 = new QWidget(&topLevel);
QWidget *w3 = new QWidget(&topLevel);
QHBoxLayout *l1 = new QHBoxLayout;
QHBoxLayout *l2 = new QHBoxLayout;
QHBoxLayout *l3 = new QHBoxLayout;
QLabel *lbl1 = new QLabel(&topLevel);
QLabel *lbl2 = new QLabel(&topLevel);
QCOMPARE(layout->rowCount(), 0);
layout->addRow(lbl1, w1);
layout->addRow(lbl2, l1);
layout->addRow("Foo:", w2);
layout->addRow("Bar:", l2);
layout->addRow(w3);
layout->addRow(l3);
QCOMPARE(layout->rowCount(), 6);
QVERIFY(layout->itemAt(0, QFormLayout::LabelRole)->widget() == lbl1);
QVERIFY(layout->itemAt(1, QFormLayout::LabelRole)->widget() == lbl2);
QCOMPARE(layout->itemAt(2, QFormLayout::LabelRole)->widget()->property("text").toString(), QLatin1String("Foo:"));
QCOMPARE(layout->itemAt(3, QFormLayout::LabelRole)->widget()->property("text").toString(), QLatin1String("Bar:"));
QVERIFY(layout->itemAt(4, QFormLayout::LabelRole) == 0);
QVERIFY(layout->itemAt(5, QFormLayout::LabelRole) == 0);
QVERIFY(layout->itemAt(0, QFormLayout::FieldRole)->widget() == w1);
QVERIFY(layout->itemAt(1, QFormLayout::FieldRole)->layout() == l1);
QVERIFY(layout->itemAt(2, QFormLayout::FieldRole)->widget() == w2);
QVERIFY(layout->itemAt(3, QFormLayout::FieldRole)->layout() == l2);
// ### should have a third role, FullRowRole?
// QVERIFY(layout.itemAt(4, QFormLayout::FieldRole) == 0);
// QVERIFY(layout.itemAt(5, QFormLayout::FieldRole) == 0);
}
void tst_QFormLayout::insertRow_QWidget_QWidget()
{
QWidget topLevel;
QFormLayout *layout = new QFormLayout(&topLevel);
QLabel *lbl1 = new QLabel(&topLevel);
QLabel *lbl2 = new QLabel(&topLevel);
QLabel *lbl3 = new QLabel(&topLevel);
QLabel *lbl4 = new QLabel(&topLevel);
QLineEdit *fld1 = new QLineEdit(&topLevel);
QLineEdit *fld2 = new QLineEdit(&topLevel);
QLineEdit *fld3 = new QLineEdit(&topLevel);
QLineEdit *fld4 = new QLineEdit(&topLevel);
layout->insertRow(0, lbl1, fld1);
QCOMPARE(layout->rowCount(), 1);
{
int row = -1;
QFormLayout::ItemRole role = invalidRole;
layout->getWidgetPosition(lbl1, &row, &role);
QCOMPARE(row, 0);
QCOMPARE(int(role), int(QFormLayout::LabelRole));
}
{
int row = -1;
QFormLayout::ItemRole role = invalidRole;
layout->getWidgetPosition(fld1, &row, &role);
QCOMPARE(row, 0);
QCOMPARE(int(role), int(QFormLayout::FieldRole));
}
// check that negative values append
layout->insertRow(-2, lbl2, fld2);
QCOMPARE(layout->rowCount(), 2);
QVERIFY(layout->itemAt(0, QFormLayout::LabelRole)->widget() == lbl1);
QVERIFY(layout->itemAt(1, QFormLayout::LabelRole)->widget() == lbl2);
// check that too large values append
layout->insertRow(100, lbl3, fld3);
QCOMPARE(layout->rowCount(), 3);
QCOMPARE(layout->count(), 6);
layout->insertRow(3, (QWidget *)0, (QWidget *)0);
QCOMPARE(layout->rowCount(), 4);
QCOMPARE(layout->count(), 6);
layout->insertRow(4, (QWidget *)0, fld4);
QCOMPARE(layout->rowCount(), 5);
QCOMPARE(layout->count(), 7);
layout->insertRow(5, lbl4, (QWidget *)0);
QCOMPARE(layout->rowCount(), 6);
QCOMPARE(layout->count(), 8);
QVERIFY(layout->itemAt(0, QFormLayout::LabelRole)->widget() == lbl1);
QVERIFY(layout->itemAt(1, QFormLayout::LabelRole)->widget() == lbl2);
QVERIFY(layout->itemAt(2, QFormLayout::LabelRole)->widget() == lbl3);
QVERIFY(layout->itemAt(3, QFormLayout::LabelRole) == 0);
QVERIFY(layout->itemAt(4, QFormLayout::LabelRole) == 0);
QVERIFY(layout->itemAt(5, QFormLayout::LabelRole)->widget() == lbl4);
QVERIFY(layout->itemAt(0, QFormLayout::FieldRole)->widget() == fld1);
QVERIFY(layout->itemAt(1, QFormLayout::FieldRole)->widget() == fld2);
QVERIFY(layout->itemAt(2, QFormLayout::FieldRole)->widget() == fld3);
QVERIFY(layout->itemAt(3, QFormLayout::FieldRole) == 0);
QVERIFY(layout->itemAt(4, QFormLayout::FieldRole)->widget() == fld4);
QVERIFY(layout->itemAt(5, QFormLayout::FieldRole) == 0);
}
void tst_QFormLayout::insertRow_QWidget_QLayout()
{
QWidget topLevel;
QFormLayout *layout = new QFormLayout(&topLevel);
QLabel *lbl1 = new QLabel(&topLevel);
QLabel *lbl2 = new QLabel(&topLevel);
QLabel *lbl3 = new QLabel(&topLevel);
QHBoxLayout *fld1 = new QHBoxLayout;
QHBoxLayout *fld2 = new QHBoxLayout;
QHBoxLayout *fld3 = new QHBoxLayout;
layout->insertRow(0, lbl1, fld1);
QCOMPARE(layout->rowCount(), 1);
{
int row = -1;
QFormLayout::ItemRole role = invalidRole;
layout->getWidgetPosition(lbl1, &row, &role);
QCOMPARE(row, 0);
QCOMPARE(int(role), int(QFormLayout::LabelRole));
}
{
int row = -1;
QFormLayout::ItemRole role = invalidRole;
layout->getLayoutPosition(fld1, &row, &role);
QCOMPARE(row, 0);
QCOMPARE(int(role), int(QFormLayout::FieldRole));
}
// check that negative values append
layout->insertRow(-2, lbl2, fld2);
QCOMPARE(layout->rowCount(), 2);
QVERIFY(layout->itemAt(0, QFormLayout::LabelRole)->widget() == lbl1);
QVERIFY(layout->itemAt(1, QFormLayout::LabelRole)->widget() == lbl2);
// check that too large values append
layout->insertRow(100, lbl3, fld3);
QCOMPARE(layout->rowCount(), 3);
QVERIFY(layout->itemAt(0, QFormLayout::LabelRole)->widget() == lbl1);
QVERIFY(layout->itemAt(1, QFormLayout::LabelRole)->widget() == lbl2);
QVERIFY(layout->itemAt(2, QFormLayout::LabelRole)->widget() == lbl3);
QVERIFY(layout->itemAt(0, QFormLayout::FieldRole)->layout() == fld1);
QVERIFY(layout->itemAt(1, QFormLayout::FieldRole)->layout() == fld2);
QVERIFY(layout->itemAt(2, QFormLayout::FieldRole)->layout() == fld3);
}
void tst_QFormLayout::insertRow_QString_QWidget()
{
QWidget topLevel;
QFormLayout *layout = new QFormLayout(&topLevel);
QLineEdit *fld1 = new QLineEdit(&topLevel);
QLineEdit *fld2 = new QLineEdit(&topLevel);
QLineEdit *fld3 = new QLineEdit(&topLevel);
layout->insertRow(-5, "&Name:", fld1);
QLabel *label1 = qobject_cast<QLabel *>(layout->itemAt(0, QFormLayout::LabelRole)->widget());
QVERIFY(label1 != 0);
QCOMPARE(label1->buddy(), fld1);
layout->insertRow(0, "&Email:", fld2);
QLabel *label2 = qobject_cast<QLabel *>(layout->itemAt(0, QFormLayout::LabelRole)->widget());
QVERIFY(label2 != 0);
QCOMPARE(label2->buddy(), fld2);
layout->insertRow(5, "&Age:", fld3);
QLabel *label3 = qobject_cast<QLabel *>(layout->itemAt(2, QFormLayout::LabelRole)->widget());
QVERIFY(label3 != 0);
QCOMPARE(label3->buddy(), fld3);
}
void tst_QFormLayout::insertRow_QString_QLayout()
{
QWidget topLevel;
QFormLayout *layout = new QFormLayout(&topLevel);
QHBoxLayout *fld1 = new QHBoxLayout;
QHBoxLayout *fld2 = new QHBoxLayout;
QHBoxLayout *fld3 = new QHBoxLayout;
layout->insertRow(-5, "&Name:", fld1);
QLabel *label1 = qobject_cast<QLabel *>(layout->itemAt(0, QFormLayout::LabelRole)->widget());
QVERIFY(label1 != 0);
QVERIFY(!label1->buddy());
QCOMPARE(layout->rowCount(), 1);
layout->insertRow(0, "&Email:", fld2);
QLabel *label2 = qobject_cast<QLabel *>(layout->itemAt(0, QFormLayout::LabelRole)->widget());
QVERIFY(label2 != 0);
QVERIFY(!label2->buddy());
QCOMPARE(layout->rowCount(), 2);
layout->insertRow(5, "&Age:", fld3);
QLabel *label3 = qobject_cast<QLabel *>(layout->itemAt(2, QFormLayout::LabelRole)->widget());
QVERIFY(label3 != 0);
QVERIFY(!label3->buddy());
QCOMPARE(layout->rowCount(), 3);
}
void tst_QFormLayout::insertRow_QWidget()
{
// ### come back to this later
}
void tst_QFormLayout::insertRow_QLayout()
{
// ### come back to this later
}
void tst_QFormLayout::removeRow()
{
QWidget topLevel;
QFormLayout *layout = new QFormLayout(&topLevel);
QCOMPARE(layout->count(), 0);
QCOMPARE(layout->rowCount(), 0);
QPointer<QWidget> w1 = new QWidget;
QPointer<QWidget> w2 = new QWidget;
layout->addRow("test1", w1);
layout->addRow(w2);
QCOMPARE(layout->count(), 3);
QCOMPARE(layout->rowCount(), 2);
layout->removeRow(1);
QVERIFY(w1);
QVERIFY(!w2);
QCOMPARE(layout->count(), 2);
QCOMPARE(layout->rowCount(), 1);
layout->removeRow(0);
QVERIFY(!w1);
QCOMPARE(layout->count(), 0);
QCOMPARE(layout->rowCount(), 0);
}
void tst_QFormLayout::removeRow_QWidget()
{
QWidget topLevel;
QFormLayout *layout = new QFormLayout(&topLevel);
QCOMPARE(layout->count(), 0);
QCOMPARE(layout->rowCount(), 0);
QPointer<QWidget> w1 = new QWidget;
QPointer<QWidget> w2 = new QWidget;
layout->addRow("test1", w1);
layout->addRow(w2);
QCOMPARE(layout->count(), 3);
QCOMPARE(layout->rowCount(), 2);
layout->removeRow(w1);
QVERIFY(!w1);
QCOMPARE(layout->count(), 1);
QCOMPARE(layout->rowCount(), 1);
layout->removeRow(w2);
QVERIFY(!w2);
QCOMPARE(layout->count(), 0);
QCOMPARE(layout->rowCount(), 0);
QWidget *w3 = new QWidget;
layout->removeRow(w3);
delete w3;
}
void tst_QFormLayout::removeRow_QLayout()
{
QWidget topLevel;
QFormLayout *layout = new QFormLayout(&topLevel);
QCOMPARE(layout->count(), 0);
QCOMPARE(layout->rowCount(), 0);
QPointer<QHBoxLayout> l1 = new QHBoxLayout;
QPointer<QWidget> w1 = new QWidget;
l1->addWidget(w1);
QPointer<QHBoxLayout> l2 = new QHBoxLayout;
QPointer<QWidget> w2 = new QWidget;
l2->addWidget(w2);
layout->addRow("test1", l1);
layout->addRow(l2);
QCOMPARE(layout->count(), 3);
QCOMPARE(layout->rowCount(), 2);
layout->removeRow(l1);
QVERIFY(!l1);
QVERIFY(!w1);
QCOMPARE(layout->count(), 1);
QCOMPARE(layout->rowCount(), 1);
layout->removeRow(l2);
QVERIFY(!l2);
QVERIFY(!w2);
QCOMPARE(layout->count(), 0);
QCOMPARE(layout->rowCount(), 0);
QHBoxLayout *l3 = new QHBoxLayout;
layout->removeRow(l3);
delete l3;
}
void tst_QFormLayout::takeRow()
{
QWidget topLevel;
QFormLayout *layout = new QFormLayout(&topLevel);
QCOMPARE(layout->count(), 0);
QCOMPARE(layout->rowCount(), 0);
QPointer<QWidget> w1 = new QWidget;
QPointer<QWidget> w2 = new QWidget;
layout->addRow("test1", w1);
layout->addRow(w2);
QCOMPARE(layout->count(), 3);
QCOMPARE(layout->rowCount(), 2);
QFormLayoutTakeRowResultHolder result = layout->takeRow(1);
QVERIFY(w2);
QVERIFY(result.fieldItem);
QVERIFY(!result.labelItem);
QCOMPARE(layout->count(), 2);
QCOMPARE(layout->rowCount(), 1);
QCOMPARE(result.fieldItem->widget(), w2.data());
result = layout->takeRow(0);
QVERIFY(w1);
QVERIFY(result.fieldItem);
QVERIFY(result.labelItem);
QCOMPARE(layout->count(), 0);
QCOMPARE(layout->rowCount(), 0);
QCOMPARE(result.fieldItem->widget(), w1.data());
result = layout->takeRow(0);
QVERIFY(!result.fieldItem);
QVERIFY(!result.labelItem);
}
void tst_QFormLayout::takeRow_QWidget()
{
QWidget topLevel;
QFormLayout *layout = new QFormLayout(&topLevel);
QCOMPARE(layout->count(), 0);
QCOMPARE(layout->rowCount(), 0);
QPointer<QWidget> w1 = new QWidget;
QPointer<QWidget> w2 = new QWidget;
layout->addRow("test1", w1);
layout->addRow(w2);
QCOMPARE(layout->count(), 3);
QCOMPARE(layout->rowCount(), 2);
QFormLayoutTakeRowResultHolder result = layout->takeRow(w1);
QVERIFY(w1);
QVERIFY(result.fieldItem);
QVERIFY(result.labelItem);
QCOMPARE(layout->count(), 1);
QCOMPARE(layout->rowCount(), 1);
result = layout->takeRow(w2);
QVERIFY(w2);
QVERIFY(result.fieldItem);
QVERIFY(!result.labelItem);
QCOMPARE(layout->count(), 0);
QCOMPARE(layout->rowCount(), 0);
QWidget *w3 = new QWidget;
result = layout->takeRow(w3);
delete w3;
QVERIFY(!result.fieldItem);
QVERIFY(!result.labelItem);
}
void tst_QFormLayout::takeRow_QLayout()
{
QWidget topLevel;
QFormLayout *layout = new QFormLayout(&topLevel);
QCOMPARE(layout->count(), 0);
QCOMPARE(layout->rowCount(), 0);
QPointer<QHBoxLayout> l1 = new QHBoxLayout;
QPointer<QWidget> w1 = new QWidget;
l1->addWidget(w1);
QPointer<QHBoxLayout> l2 = new QHBoxLayout;
QPointer<QWidget> w2 = new QWidget;
l2->addWidget(w2);
layout->addRow("test1", l1);
layout->addRow(l2);
QCOMPARE(layout->count(), 3);
QCOMPARE(layout->rowCount(), 2);
QFormLayoutTakeRowResultHolder result = layout->takeRow(l1);
QVERIFY(l1);
QVERIFY(w1);
QVERIFY(result.fieldItem);
QVERIFY(result.labelItem);
QCOMPARE(layout->count(), 1);
QCOMPARE(layout->rowCount(), 1);
result = layout->takeRow(l2);
QVERIFY(l2);
QVERIFY(w2);
QVERIFY(result.fieldItem);
QVERIFY(!result.labelItem);
QCOMPARE(layout->count(), 0);
QCOMPARE(layout->rowCount(), 0);
QHBoxLayout *l3 = new QHBoxLayout;
result = layout->takeRow(l3);
delete l3;
QVERIFY(!result.fieldItem);
QVERIFY(!result.labelItem);
}
void tst_QFormLayout::setWidget()
{
QFormLayout layout;
QWidget w1;
QWidget w2;
QWidget w3;
QWidget w4;
QCOMPARE(layout.count(), 0);
QCOMPARE(layout.rowCount(), 0);
layout.setWidget(5, QFormLayout::LabelRole, &w1);
QCOMPARE(layout.count(), 1);
QCOMPARE(layout.rowCount(), 6);
layout.setWidget(3, QFormLayout::FieldRole, &w2);
layout.setWidget(3, QFormLayout::LabelRole, &w3);
QCOMPARE(layout.count(), 3);
QCOMPARE(layout.rowCount(), 6);
// should be ignored and generate warnings
layout.setWidget(3, QFormLayout::FieldRole, &w4);
layout.setWidget(-1, QFormLayout::FieldRole, &w4);
{
int row = -1;
QFormLayout::ItemRole role = invalidRole;
layout.getWidgetPosition(&w1, &row, &role);
QCOMPARE(row, 5);
QCOMPARE(int(role), int(QFormLayout::LabelRole));
}
{
int row = -1;
QFormLayout::ItemRole role = invalidRole;
layout.getWidgetPosition(&w2, &row, &role);
QCOMPARE(row, 3);
QCOMPARE(int(role), int(QFormLayout::FieldRole));
}
{
int row = -1;
QFormLayout::ItemRole role = invalidRole;
layout.getWidgetPosition(&w3, &row, &role);
QCOMPARE(row, 3);
QCOMPARE(int(role), int(QFormLayout::LabelRole));
}
{
int row = -1;
QFormLayout::ItemRole role = invalidRole;
layout.getWidgetPosition(&w4, &row, &role);
// not found
QCOMPARE(row, -1);
QCOMPARE(int(role), int(invalidRole));
}
{
int row = -1;
QFormLayout::ItemRole role = invalidRole;
layout.getWidgetPosition(0, &row, &role);
// not found
QCOMPARE(row, -1);
QCOMPARE(int(role), int(invalidRole));
}
}
void tst_QFormLayout::setLayout()
{
QFormLayout layout;
QHBoxLayout l1;
QHBoxLayout l2;
QHBoxLayout l3;
QHBoxLayout l4;
QCOMPARE(layout.count(), 0);
QCOMPARE(layout.rowCount(), 0);
layout.setLayout(5, QFormLayout::LabelRole, &l1);
QCOMPARE(layout.count(), 1);
QCOMPARE(layout.rowCount(), 6);
layout.setLayout(3, QFormLayout::FieldRole, &l2);
layout.setLayout(3, QFormLayout::LabelRole, &l3);
QCOMPARE(layout.count(), 3);
QCOMPARE(layout.rowCount(), 6);
// should be ignored and generate warnings
layout.setLayout(3, QFormLayout::FieldRole, &l4);
layout.setLayout(-1, QFormLayout::FieldRole, &l4);
QCOMPARE(layout.count(), 3);
QCOMPARE(layout.rowCount(), 6);
{
int row = -1;
QFormLayout::ItemRole role = invalidRole;
layout.getLayoutPosition(&l1, &row, &role);
QCOMPARE(row, 5);
QCOMPARE(int(role), int(QFormLayout::LabelRole));
}
{
int row = -1;
QFormLayout::ItemRole role = invalidRole;
layout.getLayoutPosition(&l2, &row, &role);
QCOMPARE(row, 3);
QCOMPARE(int(role), int(QFormLayout::FieldRole));
}
{
int row = -1;
QFormLayout::ItemRole role = invalidRole;
layout.getLayoutPosition(&l3, &row, &role);
QCOMPARE(row, 3);
QCOMPARE(int(role), int(QFormLayout::LabelRole));
}
{
int row = -1;
QFormLayout::ItemRole role = invalidRole;
layout.getLayoutPosition(&l4, &row, &role);
QCOMPARE(row, -1);
QCOMPARE(int(role), int(invalidRole));
}
{
int row = -1;
QFormLayout::ItemRole role = invalidRole;
layout.getLayoutPosition(0, &row, &role);
QCOMPARE(row, -1);
QCOMPARE(int(role), int(invalidRole));
}
}
void tst_QFormLayout::itemAt()
{
QWidget topLevel;
QFormLayout *layout = new QFormLayout(&topLevel);
QWidget *w1 = new QWidget(&topLevel);
QWidget *w2 = new QWidget(&topLevel);
QWidget *w3 = new QWidget(&topLevel);
QWidget *w4 = new QWidget(&topLevel);
QWidget *w5 = new QWidget(&topLevel);
QHBoxLayout *l6 = new QHBoxLayout;
layout->setWidget(5, QFormLayout::LabelRole, w1);
layout->setWidget(3, QFormLayout::FieldRole, w2);
layout->setWidget(3, QFormLayout::LabelRole, w3);
layout->addRow(w4, w5);
layout->addRow("Foo:", l6);
QCOMPARE(layout->count(), 7);
QBitArray scoreBoard(7);
for (int i = 0; i < 7; ++i) {
QLayoutItem *item = layout->itemAt(i);
QVERIFY(item != 0);
if (item->widget() == w1) {
scoreBoard[0] = true;
} else if (item->widget() == w2) {
scoreBoard[1] = true;
} else if (item->widget() == w3) {
scoreBoard[2] = true;
} else if (item->widget() == w4) {
scoreBoard[3] = true;
} else if (item->widget() == w5) {
scoreBoard[4] = true;
} else if (item->layout() == l6) {
scoreBoard[5] = true;
} else if (qobject_cast<QLabel *>(item->widget())) {
scoreBoard[6] = true;
}
}
QCOMPARE(scoreBoard.count(false), 0);
}
void tst_QFormLayout::takeAt()
{
QWidget topLevel;
QFormLayout *layout = new QFormLayout(&topLevel);
QWidget *w1 = new QWidget(&topLevel);
QWidget *w2 = new QWidget(&topLevel);
QWidget *w3 = new QWidget(&topLevel);
QWidget *w4 = new QWidget(&topLevel);
QWidget *w5 = new QWidget(&topLevel);
QHBoxLayout *l6 = new QHBoxLayout;
layout->setWidget(5, QFormLayout::LabelRole, w1);
layout->setWidget(3, QFormLayout::FieldRole, w2);
layout->setWidget(3, QFormLayout::LabelRole, w3);
layout->addRow(w4, w5);
layout->addRow("Foo:", l6);
QCOMPARE(layout->count(), 7);
for (int i = 6; i >= 0; --i) {
delete layout->takeAt(0);
QCOMPARE(layout->count(), i);
}
}
void tst_QFormLayout::layoutAlone()
{
QWidget w;
QFormLayout layout;
layout.setFieldGrowthPolicy(QFormLayout::AllNonFixedFieldsGrow);
w.setLayout(&layout);
QLabel label("Here is a strange test case");
layout.setWidget(0, QFormLayout::LabelRole, &label);
QHBoxLayout hlay;
layout.setLayout(1, QFormLayout::LabelRole, &hlay);
QCOMPARE(layout.count(), 2);
w.setWindowTitle(QTest::currentTestFunction());
w.show();
layout.activate();
}
void tst_QFormLayout::taskQTBUG_27420_takeAtShouldUnparentLayout()
{
QSharedPointer<QFormLayout> outer(new QFormLayout);
QPointer<QFormLayout> inner = new QFormLayout;
outer->addRow(inner);
QCOMPARE(outer->count(), 1);
QCOMPARE(inner->parent(), outer.data());
QLayoutItem *item = outer->takeAt(0);
QCOMPARE(item->layout(), inner.data());
QVERIFY(!item->layout()->parent());
outer.reset();
if (inner)
delete item; // success: a taken item/layout should not be deleted when the old parent is deleted
else
QVERIFY(!inner.isNull());
}
void tst_QFormLayout::taskQTBUG_40609_addingWidgetToItsOwnLayout(){
QWidget widget;
widget.setObjectName("6435cbada60548b4522cbb6");
QFormLayout layout(&widget);
layout.setObjectName("c03c0e22c0b6d019a93a248");
QTest::ignoreMessage(QtWarningMsg, "QLayout: Cannot add parent widget QWidget/6435cbada60548b4522cbb6 to its child layout QFormLayout/c03c0e22c0b6d019a93a248");
layout.addRow(QLatin1String("48c81f39b7320082f8"), &widget);
QCOMPARE(layout.count(), 0);
}
void tst_QFormLayout::taskQTBUG_40609_addingLayoutToItself(){
QWidget widget;
widget.setObjectName("2bc425637d084c07ce65956");
QFormLayout layout(&widget);
layout.setObjectName("60e31de0c8800eaba713a4f2");
QTest::ignoreMessage(QtWarningMsg, "QLayout: Cannot add layout QFormLayout/60e31de0c8800eaba713a4f2 to itself");
layout.addRow(QLatin1String("9a2cd4f40c06b489f889"), &layout);
QCOMPARE(layout.count(), 0);
}
void tst_QFormLayout::replaceWidget()
{
QWidget w;
QFormLayout *layout = new QFormLayout();
w.setLayout(layout);
QLineEdit *edit1 = new QLineEdit();
QLineEdit *edit2 = new QLineEdit();
QLineEdit *edit3 = new QLineEdit();
QLabel *label1 = new QLabel();
QLabel *label2 = new QLabel();
layout->addRow("Label", edit1);
layout->addRow(label1, edit2);
// Verify controls not in layout
QCOMPARE(layout->indexOf(edit3), -1);
QCOMPARE(layout->indexOf(label2), -1);
// Verify controls in layout
int editIndex = layout->indexOf(edit1);
int labelIndex = layout->indexOf(label1);
QVERIFY(editIndex > 0);
QVERIFY(labelIndex > 0);
int rownum;
QFormLayout::ItemRole role;
// replace editor
delete layout->replaceWidget(edit1, edit3);
edit1->hide(); // Not strictly needed for the test, but for normal usage it is.
QCOMPARE(layout->indexOf(edit1), -1);
QCOMPARE(layout->indexOf(edit3), editIndex);
QCOMPARE(layout->indexOf(label1), labelIndex);
rownum = -1;
role = QFormLayout::SpanningRole;
layout->getWidgetPosition(edit3, &rownum, &role);
QCOMPARE(rownum, 0);
QCOMPARE(role, QFormLayout::FieldRole);
delete layout->replaceWidget(label1, label2);
label1->hide();
QCOMPARE(layout->indexOf(label1), -1);
QCOMPARE(layout->indexOf(label2), labelIndex);
layout->getWidgetPosition(label2, &rownum, &role);
QCOMPARE(rownum, 1);
QCOMPARE(role, QFormLayout::LabelRole);
}
QTEST_MAIN(tst_QFormLayout)
#include "tst_qformlayout.moc"
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