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qt5base-lts/tests/auto/widgets/kernel/qgridlayout/tst_qgridlayout.cpp
Thorbjørn Lund Martsum 42d681f9cf Add widget replace function to QLayout 
Sometimes it is nice to be able to replace a widget in a layout.

Change-Id: I23a6a65e417e94d53bc48639503db1a142bc3f10
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
2013-09-21 23:17:55 +02:00

1706 lines
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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
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** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
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** a written agreement between you and Digia. For licensing terms and
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** use the contact form at http://qt.digia.com/contact-us.
**
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** Alternatively, 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.
**
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** rights. These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
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****************************************************************************/
#include <QtTest/QtTest>
#include <qlayout.h>
#include <qapplication.h>
#include <qwidget.h>
#include <qproxystyle.h>
#include <qsizepolicy.h>
//#include <QtGui>
#include <QtWidgets/QLabel>
#include <QtWidgets/QLineEdit>
#include <QtWidgets/QRadioButton>
#include <QStyleFactory>
#include <QSharedPointer>
// Make a widget frameless to prevent size constraints of title bars
// from interfering (Windows).
static inline void setFrameless(QWidget *w)
{
Qt::WindowFlags flags = w->windowFlags();
flags |= Qt::FramelessWindowHint;
flags &= ~(Qt::WindowTitleHint | Qt::WindowSystemMenuHint | Qt::WindowMinMaxButtonsHint | Qt::WindowCloseButtonHint);
w->setWindowFlags(flags);
}
class tst_QGridLayout : public QObject
{
Q_OBJECT
public:
tst_QGridLayout();
virtual ~tst_QGridLayout();
public slots:
void initTestCase();
void cleanupTestCase();
void init();
void cleanup();
private slots:
void getItemPosition();
void itemAtPosition();
void badDistributionBug();
void setMinAndMaxSize();
void spacingAndSpacers();
void spacingsAndMargins();
void spacingsAndMargins_data();
void minMaxSize_data();
void minMaxSize();
void styleDependentSpacingsAndMargins_data();
void styleDependentSpacingsAndMargins();
void layoutSpacing_data();
void layoutSpacing();
void spacing();
void spacerWithSpacing();
void contentsRect();
void distributeMultiCell();
void taskQTBUG_27420_takeAtShouldUnparentLayout();
void replaceWidget();
private:
QWidget *testWidget;
QGridLayout *testLayout;
QWidget *w1;
QWidget *w2;
QWidget *w3;
QSpacerItem *sp;
QGridLayout *m_grid;
QWidget *m_toplevel;
};
tst_QGridLayout::tst_QGridLayout()
{
m_grid = 0;
m_toplevel = 0;
}
tst_QGridLayout::~tst_QGridLayout()
{
delete m_toplevel;
}
void tst_QGridLayout::initTestCase()
{
#ifdef Q_OS_WINCE //disable magic for WindowsCE
qApp->setAutoMaximizeThreshold(-1);
#endif
// Create the test class
testWidget = new QWidget(0);
testLayout = new QGridLayout(testWidget);
w1 = new QWidget(testWidget);
w1->setPalette(QPalette(Qt::red));
testLayout->addWidget(w1, 0, 0);
w2 = new QWidget(testWidget);
testLayout->addWidget(w2, 1, 1, 2, 2);
w2->setPalette(QPalette(Qt::green));
w3 = new QWidget(testWidget);
testLayout->addWidget(w3, 0, 1, 1, 2);
w3->setPalette(QPalette(Qt::blue));
sp = new QSpacerItem(4, 4);
testLayout->addItem(sp, 1, 3, 2, 1);
testWidget->resize( 200, 200 );
testWidget->show();
}
void tst_QGridLayout::cleanupTestCase()
{
delete testWidget;
testWidget = 0;
}
void tst_QGridLayout::init()
{
}
void tst_QGridLayout::cleanup()
{
}
void tst_QGridLayout::getItemPosition()
{
QLayoutItem *item;
int counter = 0;
bool seenW1 = false;
bool seenW2 = false;
bool seenW3 = false;
bool seenSpacer = false;
while ((item = testLayout->itemAt(counter))) {
QWidget *w = item->widget();
int r,c,rs,cs;
testLayout->getItemPosition(counter, &r, &c, &rs, &cs);
// qDebug() << "item" << counter << "has" <<r << c << rs << cs;
if (w == w1) {
QVERIFY(!seenW1);
seenW1 = true;
QCOMPARE(r, 0);
QCOMPARE(c, 0);
QCOMPARE(rs, 1);
QCOMPARE(cs, 1);
} else if (w == w2) {
QVERIFY(!seenW2);
seenW2 = true;
QCOMPARE(r, 1);
QCOMPARE(c, 1);
QCOMPARE(rs, 2);
QCOMPARE(cs, 2);
} else if (w == w3) {
QVERIFY(!seenW3);
seenW3 = true;
QCOMPARE(r, 0);
QCOMPARE(c, 1);
QCOMPARE(rs, 1);
QCOMPARE(cs, 2);
} else {
QVERIFY(!w);
QVERIFY(!seenSpacer);
seenSpacer = true;
QCOMPARE(r, 1);
QCOMPARE(c, 3);
QCOMPARE(rs, 2);
QCOMPARE(cs, 1);
}
++counter;
}
QCOMPARE(counter, 4);
QVERIFY(seenW1);
QVERIFY(seenW2);
QVERIFY(seenW3);
QVERIFY(seenSpacer);
}
void tst_QGridLayout::itemAtPosition()
{
void *table[4][5] = {
{ w1, w3, w3, 0, 0 },
{ 0, w2, w2, sp, 0 },
{ 0, w2, w2, sp, 0 },
{ 0, 0, 0, 0, 0 }
};
for (int row = 0; row < 4; ++row) {
for (int col = 0; col < 5; ++col) {
QLayoutItem *item = testLayout->itemAtPosition(row, col);
QVERIFY(item == table[row][col]
|| (item && item->widget() == table[row][col]));
}
}
}
#include "ui_sortdialog.h"
void tst_QGridLayout::badDistributionBug()
{
QDialog dialog;
Ui::SortDialog ui;
ui.setupUi(&dialog);
ui.gridLayout->setMargin(0);
ui.gridLayout->setSpacing(0);
ui.vboxLayout->setMargin(0);
ui.vboxLayout->setSpacing(0);
ui.okButton->setFixedHeight(20);
ui.moreButton->setFixedHeight(20);
ui.primaryGroupBox->setAttribute(Qt::WA_LayoutUsesWidgetRect);
ui.primaryGroupBox->setFixedHeight(200);
QSize minSize = dialog.layout()->minimumSize();
QCOMPARE(minSize.height(), 200);
}
void tst_QGridLayout::setMinAndMaxSize()
{
QWidget widget;
setFrameless(&widget);
QGridLayout layout(&widget);
layout.setMargin(0);
layout.setSpacing(0);
layout.setSizeConstraint(QLayout::SetMinAndMaxSize);
widget.show();
QWidget leftChild;
leftChild.setPalette(QPalette(Qt::red));
leftChild.setMinimumSize(100, 100);
leftChild.setMaximumSize(200, 200);
layout.addWidget(&leftChild, 0, 0);
QApplication::sendPostedEvents(0, 0);
QCOMPARE(widget.minimumSize(), leftChild.minimumSize());
QCOMPARE(widget.maximumSize(), leftChild.maximumSize());
QWidget rightChild;
rightChild.setPalette(QPalette(Qt::green));
rightChild.setMinimumSize(100, 100);
rightChild.setMaximumSize(200, 200);
layout.addWidget(&rightChild, 0, 2);
QApplication::sendPostedEvents(0, 0);
QCOMPARE(widget.minimumWidth(),
leftChild.minimumWidth() + rightChild.minimumWidth());
QCOMPARE(widget.minimumHeight(),
qMax(leftChild.minimumHeight(), rightChild.minimumHeight()));
QCOMPARE(widget.maximumWidth(),
leftChild.maximumWidth() + rightChild.maximumWidth());
QCOMPARE(widget.maximumHeight(),
qMax(leftChild.maximumHeight(), rightChild.maximumHeight()));
static const int colMin = 100;
layout.setColumnMinimumWidth(1, colMin);
QCOMPARE(layout.columnMinimumWidth(1), colMin);
QApplication::sendPostedEvents(0, 0);
QCOMPARE(widget.minimumWidth(),
leftChild.minimumWidth() + rightChild.minimumWidth() + colMin);
QCOMPARE(widget.maximumWidth(),
leftChild.maximumWidth() + rightChild.maximumWidth() + colMin);
QCOMPARE(widget.minimumHeight(),
qMax(leftChild.minimumHeight(), rightChild.minimumHeight()));
QCOMPARE(widget.maximumHeight(),
qMax(leftChild.maximumHeight(), rightChild.maximumHeight()));
layout.setColumnStretch(1,1);
QApplication::sendPostedEvents(0, 0);
QCOMPARE(widget.minimumWidth(),
leftChild.minimumWidth() + rightChild.minimumWidth() + colMin);
QCOMPARE(widget.maximumWidth(), QLAYOUTSIZE_MAX);
QCOMPARE(widget.minimumHeight(),
qMax(leftChild.minimumHeight(), rightChild.minimumHeight()));
QCOMPARE(widget.maximumHeight(),
qMax(leftChild.maximumHeight(), rightChild.maximumHeight()));
layout.setColumnStretch(1,0);
QApplication::sendPostedEvents(0, 0);
QCOMPARE(widget.minimumWidth(),
leftChild.minimumWidth() + rightChild.minimumWidth() + colMin);
QCOMPARE(widget.maximumWidth(),
leftChild.maximumWidth() + rightChild.maximumWidth() + colMin);
QCOMPARE(widget.minimumHeight(),
qMax(leftChild.minimumHeight(), rightChild.minimumHeight()));
QCOMPARE(widget.maximumHeight(),
qMax(leftChild.maximumHeight(), rightChild.maximumHeight()));
layout.setColumnMinimumWidth(1, 0);
static const int spacerS = 250;
QSpacerItem *spacer = new QSpacerItem(spacerS, spacerS);
layout.addItem(spacer, 0, 1);
QApplication::sendPostedEvents(0, 0);
QCOMPARE(widget.minimumWidth(),
leftChild.minimumWidth() + rightChild.minimumWidth() + spacerS);
QCOMPARE(widget.maximumWidth(), QLAYOUTSIZE_MAX);
QCOMPARE(widget.minimumHeight(),
qMax(qMax(leftChild.minimumHeight(), rightChild.minimumHeight()), spacerS));
QCOMPARE(widget.maximumHeight(),
qMax(leftChild.maximumHeight(), rightChild.maximumHeight()));
spacer->changeSize(spacerS, spacerS, QSizePolicy::Fixed, QSizePolicy::Minimum);
layout.invalidate();
QApplication::sendPostedEvents(0, 0);
QCOMPARE(widget.minimumWidth(),
leftChild.minimumWidth() + rightChild.minimumWidth() + spacerS);
QCOMPARE(widget.maximumWidth(),
leftChild.maximumWidth() + rightChild.maximumWidth() + spacerS);
layout.removeItem(spacer);
rightChild.hide();
QApplication::sendPostedEvents(0, 0);
QCOMPARE(widget.minimumSize(), leftChild.minimumSize());
QCOMPARE(widget.maximumSize(), leftChild.maximumSize());
rightChild.show();
layout.removeWidget(&rightChild);
QApplication::sendPostedEvents(0, 0);
QCOMPARE(widget.minimumSize(), leftChild.minimumSize());
QCOMPARE(widget.maximumSize(), leftChild.maximumSize());
QWidget bottomChild(&widget);
bottomChild.setPalette(QPalette(Qt::green));
bottomChild.setMinimumSize(100, 100);
bottomChild.setMaximumSize(200, 200);
layout.addWidget(&bottomChild, 1, 0);
QApplication::sendPostedEvents(0, 0);
QCOMPARE(widget.minimumHeight(),
leftChild.minimumHeight() + bottomChild.minimumHeight());
QCOMPARE(widget.minimumWidth(),
qMax(leftChild.minimumWidth(), bottomChild.minimumWidth()));
QCOMPARE(widget.maximumHeight(),
leftChild.maximumHeight() + bottomChild.maximumHeight());
QCOMPARE(widget.maximumWidth(),
qMax(leftChild.maximumWidth(), bottomChild.maximumWidth()));
bottomChild.hide();
QApplication::sendPostedEvents(0, 0);
QCOMPARE(widget.minimumSize(), leftChild.minimumSize());
QCOMPARE(widget.maximumSize(), leftChild.maximumSize());
bottomChild.show();
layout.removeWidget(&bottomChild);
QApplication::sendPostedEvents(0, 0);
QCOMPARE(widget.minimumSize(), leftChild.minimumSize());
QCOMPARE(widget.maximumSize(), leftChild.maximumSize());
}
class SizeHinter : public QWidget
{
public:
SizeHinter(const QSize &s, QWidget *parent = 0)
: QWidget(parent), sh(s) { }
SizeHinter(int w, int h, QWidget *parent = 0)
: QWidget(parent), sh(QSize(w,h)) {}
void setSizeHint(QSize s) { sh = s; }
QSize sizeHint() const { return sh; }
private:
QSize sh;
};
void tst_QGridLayout::spacingAndSpacers()
{
QWidget widget;
setFrameless(&widget);
QGridLayout layout(&widget);
layout.setMargin(0);
layout.setSpacing(0);
widget.show();
QSize expectedSizeHint;
SizeHinter leftChild(100,100);
leftChild.setPalette(QPalette(Qt::red));
layout.addWidget(&leftChild, 0, 0);
QApplication::sendPostedEvents(0, 0);
expectedSizeHint = leftChild.sizeHint();
QCOMPARE(widget.sizeHint(), expectedSizeHint);
SizeHinter rightChild(200,100);
rightChild.setPalette(QPalette(Qt::green));
layout.addWidget(&rightChild, 0, 2);
QApplication::sendPostedEvents(0, 0);
QCOMPARE(rightChild.sizeHint(), QSize(200,100));
expectedSizeHint += QSize(rightChild.sizeHint().width(), 0);
QCOMPARE(widget.sizeHint(), expectedSizeHint);
layout.setColumnMinimumWidth(1, 100);
widget.adjustSize();
expectedSizeHint += QSize(100,0);
QApplication::sendPostedEvents(0, 0);
QCOMPARE(widget.sizeHint(), expectedSizeHint);
rightChild.hide();
QApplication::sendPostedEvents(0, 0);
expectedSizeHint -= QSize(rightChild.sizeHint().width(), 0);
QCOMPARE(widget.sizeHint(), expectedSizeHint);
layout.setColumnMinimumWidth(1, 0);
expectedSizeHint -= QSize(100, 0);
QCOMPARE(widget.sizeHint(), expectedSizeHint);
rightChild.show();
layout.removeWidget(&rightChild);
QApplication::sendPostedEvents(0, 0);
QCOMPARE(widget.sizeHint(), expectedSizeHint);
}
class Qt42Style : public QProxyStyle
{
Q_OBJECT
public:
Qt42Style() : QProxyStyle(QStyleFactory::create("windows"))
{
spacing = 6;
margin = 9;
margin_toplevel = 11;
}
virtual int pixelMetric(PixelMetric metric, const QStyleOption * option = 0,
const QWidget * widget = 0 ) const;
int spacing;
int margin;
int margin_toplevel;
};
int Qt42Style::pixelMetric(PixelMetric metric, const QStyleOption * option /*= 0*/,
const QWidget * widget /*= 0*/ ) const
{
switch (metric) {
case PM_DefaultLayoutSpacing:
return spacing;
break;
case PM_DefaultTopLevelMargin:
return margin_toplevel;
break;
case PM_DefaultChildMargin:
return margin;
break;
default:
break;
}
return QProxyStyle::pixelMetric(metric, option, widget);
}
typedef QList<QPoint> PointList;
class SizeHinterFrame : public QLabel
{
public:
SizeHinterFrame(QWidget *parent = 0)
: QLabel(parent)
{
init(-1);
}
SizeHinterFrame(const QSize &s, int numPixels = -1)
: QLabel(0), sh(s) {
init(numPixels);
}
SizeHinterFrame(int w, int h)
: QLabel(0), sh(QSize(w,h))
{
init(-1);
}
void setSizeHint(const QSize &s) { sh = s; }
QSize sizeHint() const { return sh; }
void setMinimumSizeHint(const QSize &s) { msh = s; }
QSize minimumSizeHint() const { return msh; }
virtual int heightForWidth(int width) const;
void setNumberOfPixels(int numPixels) {
m_numPixels = numPixels;
QSizePolicy sp = sizePolicy();
sp.setHeightForWidth(m_numPixels != -1);
setSizePolicy(sp);
}
private:
void init(int numPixels = -1){
setText(QString::fromLatin1("(%1,%2)").arg(sh.width()).arg(sh.height()));
setFrameStyle(QFrame::Box | QFrame::Plain);
setNumberOfPixels(numPixels);
}
private:
QSize sh;
QSize msh;
int m_numPixels;
};
int SizeHinterFrame::heightForWidth(int width) const
{
// Special hack if m_numPixels == -2 then we report that we are heightForWidth aware, but we
// return sizeHint().width() so that it should be laid out as if we had't any hfw.
// This enables us to run the tests twice and to see if we get the same results with hfw as without hfw.
if (m_numPixels == -2) {
return sizeHint().height();
}
if (m_numPixels == -1 || width == 0) return -1;
// this widget should always cover the same amount of pixels (provided that we don't get any rounding errors)
return (m_numPixels)/width;
}
void tst_QGridLayout::spacingsAndMargins_data()
{
// input
QTest::addColumn<int>("columns");
QTest::addColumn<int>("rows");
QTest::addColumn<QSize>("sizehint");
// expected
QTest::addColumn<PointList>("expectedpositions");
int child_offset_y = 11 + 100 + 6 + 9 ;
QTest::newRow("1x1 grid") << 1 << 1 << QSize(100, 100)
<< (PointList() // toplevel
<< QPoint( 11, 11)
// children
<< QPoint( 20, child_offset_y)
);
QTest::newRow("2x1 grid") << 2 << 1 << QSize(100, 100)
<< (PointList() // toplevel
<< QPoint( 11, 11)
<< QPoint( 11 + 100 + 6, 11)
// children
<< QPoint( 20, child_offset_y)
<< QPoint( 20 + 100 + 6, child_offset_y)
);
QTest::newRow("3x1 grid") << 3 << 1 << QSize(100, 100)
<< (PointList() // toplevel
<< QPoint( 11, 11)
<< QPoint( 11 + 100 + 6, 11)
<< QPoint( 11 + 100 + 6 + 100 + 6, 11)
// children
<< QPoint( 20, child_offset_y)
<< QPoint( 20 + 100 + 6, child_offset_y)
<< QPoint( 20 + 100 + 6 + 100 + 6, child_offset_y)
);
child_offset_y = 11 + 9 + 100 + 6 + 100 + 6;
QTest::newRow("1x2 grid") << 1 << 2 << QSize(100, 100)
<< (PointList() // toplevel
<< QPoint( 11, 11)
<< QPoint( 11, 11 + 100 + 6)
// children
<< QPoint( 20, child_offset_y)
<< QPoint( 20, child_offset_y + 100 + 6)
);
#if defined (Q_OS_WINCE) //There is not enough screenspace to run the test in original size on Windows CE. We use smaller widgets.
child_offset_y = 11 + 9 + 50 + 6 + 50 + 6 + 50 + 6;
QTest::newRow("1x3 grid") << 1 << 3 << QSize(50, 50)
<< (PointList() // toplevel
<< QPoint( 11, 11)
<< QPoint( 11, 11 + 50 + 6)
<< QPoint( 11, 11 + 50 + 6 + 50 + 6)
// children
<< QPoint( 20, child_offset_y)
<< QPoint( 20, child_offset_y + 50 + 6)
<< QPoint( 20, child_offset_y + 50 + 6 + 50 + 6)
);
#else
child_offset_y = 11 + 9 + 100 + 6 + 100 + 6 + 100 + 6;
QTest::newRow("1x3 grid") << 1 << 3 << QSize(100, 100)
<< (PointList() // toplevel
<< QPoint( 11, 11)
<< QPoint( 11, 11 + 100 + 6)
<< QPoint( 11, 11 + 100 + 6 + 100 + 6)
// children
<< QPoint( 20, child_offset_y)
<< QPoint( 20, child_offset_y + 100 + 6)
<< QPoint( 20, child_offset_y + 100 + 6 + 100 + 6)
);
#endif
child_offset_y = 11 + 9 + 100 + 6 + 100 + 6;
QTest::newRow("2x2 grid") << 2 << 2 << QSize(100, 100)
<< (PointList() // toplevel
<< QPoint( 11, 11)
<< QPoint( 11 + 100 + 6, 11)
<< QPoint( 11, 11 + 100 + 6)
<< QPoint( 11 + 100 + 6, 11 + 100 + 6)
// children
<< QPoint( 20, child_offset_y)
<< QPoint( 20 + 100 + 6, child_offset_y)
<< QPoint( 20, child_offset_y + 100 + 6)
<< QPoint( 20 + 100 + 6, child_offset_y + 100 + 6)
);
}
void tst_QGridLayout::spacingsAndMargins()
{
/*
The test tests a gridlayout as a child of a top-level widget,
and then a gridlayout as a child of a non-toplevel widget.
The expectedpositions should then contain the list of widget positions in the
first gridlayout, then followed by a list of widget positions in the second gridlayout.
*/
QFETCH(int, columns);
QFETCH(int, rows);
QFETCH(QSize, sizehint);
QFETCH(PointList, expectedpositions);
QApplication::setStyle(new Qt42Style);
QWidget toplevel;
setFrameless(&toplevel);
QVBoxLayout vbox(&toplevel);
QGridLayout grid1;
vbox.addLayout(&grid1);
// a layout with a top-level parent widget
QList<QPointer<SizeHinterFrame> > sizehinters;
for (int i = 0; i < rows; ++i) {
for (int j = 0; j < columns; ++j) {
SizeHinterFrame *sh = new SizeHinterFrame(sizehint);
sh->setMinimumSizeHint(sizehint);
sizehinters.append(sh);
grid1.addWidget(sh, i, j);
}
}
// Add the child widget
QWidget widget;
vbox.addWidget(&widget);
QGridLayout grid2;
widget.setLayout(&grid2);
// add a layout to the child widget
for (int i = 0; i < rows; ++i) {
for (int j = 0; j < columns; ++j) {
SizeHinterFrame *sh = new SizeHinterFrame(sizehint);
sh->setMinimumSizeHint(sizehint);
sizehinters.append(sh);
grid2.addWidget(sh, i, j);
}
}
grid1.setColumnStretch(columns-1, 1);
grid1.setRowStretch(rows-1, 1);
toplevel.show();
toplevel.adjustSize();
QApplication::processEvents();
QVERIFY(QTest::qWaitForWindowExposed(&toplevel));
QSize topsize = toplevel.size();
QSize minimumsize = vbox.totalMinimumSize();
if (topsize.width() < minimumsize.width() || topsize.height() < minimumsize.height())
QSKIP("The screen is too small to run this test case");
// We are relying on the order here...
for (int pi = 0; pi < sizehinters.count(); ++pi) {
QPoint pt = sizehinters.at(pi)->mapTo(&toplevel, QPoint(0, 0));
QCOMPARE(pt, expectedpositions.at(pi));
}
}
struct SizeInfo {
SizeInfo(const QPoint &expected, const QSize &sh, const QSize &minimumSize = QSize(),
const QSize &maximumSize = QSize(), int numPixelsToCover = -1)
{
expectedPos = expected;
sizeHint = sh;
minSize = minimumSize;
maxSize = maximumSize;
hfwNumPixels = numPixelsToCover;
}
SizeInfo(const QRect &expected, const QSize &sh, const QSize &minimumSize = QSize(),
const QSize &maximumSize = QSize(), int numPixelsToCover = -1)
{
expectedPos = expected.topLeft();
expectedSize = expected.size();
sizeHint = sh;
minSize = minimumSize;
maxSize = maximumSize;
hfwNumPixels = numPixelsToCover;
}
SizeInfo(const SizeInfo& other) {
(*this)=other;
}
SizeInfo &operator=(const SizeInfo& other) {
expectedPos = other.expectedPos;
expectedSize = other.expectedSize;
sizeHint = other.sizeHint;
minSize = other.minSize;
maxSize = other.maxSize;
hfwNumPixels = other.hfwNumPixels;
return (*this);
}
QPoint expectedPos;
QSize expectedSize;
QSize sizeHint;
QSize minSize;
QSize maxSize;
int hfwNumPixels;
};
typedef QList<SizeInfo> SizeInfoList;
Q_DECLARE_METATYPE(SizeInfoList)
void tst_QGridLayout::minMaxSize_data()
{
// input
QTest::addColumn<QString>("stylename");
QTest::addColumn<int>("columns");
QTest::addColumn<int>("rows");
QTest::addColumn<int>("sizePolicy");
QTest::addColumn<QSize>("fixedSize");
//input and expected output
QTest::addColumn<SizeInfoList>("sizeinfos");
QTest::newRow("3x1 grid, extend to minimumSize") << QString() << 3 << 1
<< int(QSizePolicy::Minimum) << QSize(152, 50) << (SizeInfoList()
<< SizeInfo(QRect(10, 10, 43, 30), QSize( 75, 75), QSize(0,0))
<< SizeInfo(QRect(10 + 45, 10, 43, 30), QSize(75, 75), QSize( 0, 0))
<< SizeInfo(QRect(10 + 45 + 44, 10, 42, 30), QSize(75, 75), QSize( 0, 0))
);
QTest::newRow("1x1 grid, extend to minimumSize") << QString() << 1 << 1
<< int(QSizePolicy::Preferred) << QSize() << (SizeInfoList()
<< SizeInfo(QPoint(10, 10), QSize( 90, 90), QSize(100,100))
);
QTest::newRow("2x1 grid, extend to minimumSize") << QString() << 2 << 1
<< int(QSizePolicy::Preferred) << QSize() << (SizeInfoList()
<< SizeInfo(QPoint(10, 10), QSize( 90, 90), QSize(100,100))
<< SizeInfo(QPoint(10 + 100 + 1, 10), QSize( 90, 90))
);
QTest::newRow("2x1 grid, extend to minimumSize, windows") << QString::fromLatin1("windows") << 2 << 1
<< int(QSizePolicy::Preferred) << QSize() << (SizeInfoList()
<< SizeInfo(QPoint(11, 11), QSize( 90, 90), QSize(100,100))
<< SizeInfo(QPoint(11 + 100 + 6, 11), QSize( 90, 90))
);
QTest::newRow("1x2 grid, extend to minimumSize") << QString() << 1 << 2
<< int(QSizePolicy::Preferred) << QSize() << (SizeInfoList()
<< SizeInfo(QPoint(10, 10), QSize( 90, 90), QSize(100,100))
<< SizeInfo(QPoint(10, 10 + 100 + 1), QSize( 90, 90))
);
QTest::newRow("2x1 grid, crop to maximumSize") << QString() << 2 << 1
<< int(QSizePolicy::Preferred) << QSize() << (SizeInfoList()
<< SizeInfo(QPoint(10, 10), QSize(110,110), QSize(), QSize(100, 100))
<< SizeInfo(QPoint(10 + 100 + 1, 10), QSize( 90, 90))
);
QTest::newRow("1x2 grid, crop to maximumSize") << QString() << 1 << 2
<< int(QSizePolicy::Preferred) << QSize() << (SizeInfoList()
<< SizeInfo(QPoint(10, 10), QSize(110,110), QSize(), QSize(100, 100))
<< SizeInfo(QPoint(10, 10 + 100 + 1), QSize( 90, 90))
);
QTest::newRow("1x3 grid, heightForWidth") << QString() << 1 << 3
<< int(QSizePolicy::Preferred) << QSize() << (SizeInfoList()
<< SizeInfo(QPoint(10, 10), QSize(), QSize(200,100), QSize())
<< SizeInfo(QPoint(10, 10 + 100 + 1), QSize(100,100), QSize(), QSize(), 100*100)
<< SizeInfo(QPoint(10, 10 + 100 + 1 + 50 + 1), QSize(100,100), QSize(), QSize(100, 100))
);
}
void tst_QGridLayout::minMaxSize()
{
/*
The test tests a gridlayout as a child of a top-level widget
*/
// input
QFETCH(QString, stylename);
QFETCH(int, columns);
QFETCH(int, rows);
QFETCH(int, sizePolicy);
QFETCH(QSize, fixedSize);
//input and expected output
QFETCH(SizeInfoList, sizeinfos);
QStyle *style = 0;
if (stylename.isEmpty()) {
Qt42Style *s = new Qt42Style;
s->margin_toplevel = 10;
s->margin = 5;
s->spacing = 1;
style = static_cast<QStyle *>(s);
}else{
style = QStyleFactory::create(stylename);
if (!style) {
QSKIP( qPrintable(QString::fromLatin1("Qt has been compiled without style: %1").arg(stylename)));
}
}
QApplication::setStyle(style);
if (!m_grid)
m_grid = new QGridLayout();
if (!m_toplevel) {
m_toplevel = new QWidget();
setFrameless(m_toplevel);
}
if (fixedSize.isValid()) {
m_toplevel->setFixedSize(fixedSize);
} else {
m_toplevel->setMinimumSize(QSize(0,0));
m_toplevel->setMaximumSize(QSize(QWIDGETSIZE_MAX,QWIDGETSIZE_MAX));
}
// Do a two-pass one using the real testdata, the other pass enables heightForWidth
// on the widget, but the heightForWidth() function just return sizeHint().width()
for (int pass = 0; pass < 2; ++pass) {
m_toplevel->hide();
QApplication::processEvents();
QTest::qWait(20);
// Test if removeItem uninitializes data properly
while (m_grid->count()) {
QLayoutItem *item = m_grid->itemAt(0);
m_grid->removeItem(item);
delete item->widget();
delete item;
}
m_toplevel->setLayout(m_grid);
// a layout with a top-level parent widget
QList<QPointer<SizeHinterFrame> > sizehinters;
for (int i = 0; i < rows; ++i) {
for (int j = 0; j < columns; ++j) {
SizeInfo si = sizeinfos.at(sizehinters.count());
int numpixels = si.hfwNumPixels;
if (pass == 1 && numpixels == -1)
numpixels = -2; //### yuk, (and don't fake it if it already tests sizehint)
SizeHinterFrame *sh = new SizeHinterFrame(si.sizeHint, numpixels);
QSizePolicy sp = sh->sizePolicy();
sp.setHorizontalPolicy((QSizePolicy::Policy)sizePolicy);
sh->setSizePolicy(sp);
sh->setParent(m_toplevel);
if (si.minSize.isValid())
sh->setMinimumSize(si.minSize);
if (si.maxSize.isValid())
sh->setMaximumSize(si.maxSize);
sizehinters.append(sh);
m_grid->addWidget(sh, i, j);
}
}
m_toplevel->show();
QVERIFY(QTest::qWaitForWindowExposed(m_toplevel));
m_toplevel->adjustSize();
QTest::qWait(240); // wait for the implicit adjustSize
// If the following fails we might have to wait longer.
// If that does not help there is likely a problem with the implicit adjustSize in show()
if (!fixedSize.isValid()) {
// Note that this can fail if the desktop has large fonts on windows.
QTRY_COMPARE(m_toplevel->size(), m_toplevel->sizeHint());
}
// We are relying on the order here...
for (int pi = 0; pi < sizehinters.count(); ++pi) {
QPoint pt = sizehinters.at(pi)->mapTo(m_toplevel, QPoint(0, 0));
QCOMPARE(pt, sizeinfos.at(pi).expectedPos);
}
}
}
class CustomLayoutStyle : public QProxyStyle
{
Q_OBJECT
public:
CustomLayoutStyle() : QProxyStyle(QStyleFactory::create("windows"))
{
hspacing = 5;
vspacing = 10;
reimplementSubelementRect = false;
}
virtual int pixelMetric(PixelMetric metric, const QStyleOption * option = 0,
const QWidget * widget = 0 ) const;
virtual QRect subElementRect(SubElement sr, const QStyleOption *opt,
const QWidget *widget) const;
int hspacing;
int vspacing;
bool reimplementSubelementRect;
int layoutSpacing(QSizePolicy::ControlType control1,
QSizePolicy::ControlType control2,
Qt::Orientation orientation,
const QStyleOption *option = 0,
const QWidget *widget = 0) const;
};
QRect CustomLayoutStyle::subElementRect(SubElement sr, const QStyleOption *opt,
const QWidget *widget) const
{
QRect rect;
if (reimplementSubelementRect) {
switch (sr) {
case SE_FrameLayoutItem:
rect = opt->rect;
rect.adjust(+4, +9, -4, 0); // The hspacing=5 and vspacing=10, so we keep it safe.
break;
case SE_GroupBoxLayoutItem:
rect = opt->rect.adjusted(0, +10, 0, 0);
break;
default:
break;
}
}
if (rect.isNull())
rect = QProxyStyle::subElementRect(sr, opt, widget);
return rect;
}
#define CT1(c) CT2(c, c)
#define CT2(c1, c2) ((uint)c1 << 16) | (uint)c2
int CustomLayoutStyle::layoutSpacing(QSizePolicy::ControlType control1,
QSizePolicy::ControlType control2,
Qt::Orientation orientation,
const QStyleOption * /*option = 0*/,
const QWidget * /*widget = 0*/) const
{
if (orientation == Qt::Horizontal) {
switch (CT2(control1, control2)) {
case CT1(QSizePolicy::PushButton):
return 2;
break;
}
return 5;
} else {
switch (CT2(control1, control2)) {
case CT1(QSizePolicy::RadioButton):
return 2;
break;
}
return 10;
}
}
int CustomLayoutStyle::pixelMetric(PixelMetric metric, const QStyleOption * option /*= 0*/,
const QWidget * widget /*= 0*/ ) const
{
switch (metric) {
case PM_LayoutLeftMargin:
return 0;
break;
case PM_LayoutTopMargin:
return 3;
break;
case PM_LayoutRightMargin:
return 6;
break;
case PM_LayoutBottomMargin:
return 9;
break;
case PM_LayoutHorizontalSpacing:
return hspacing;
case PM_LayoutVerticalSpacing:
return vspacing;
break;
default:
break;
}
return QProxyStyle::pixelMetric(metric, option, widget);
}
void tst_QGridLayout::styleDependentSpacingsAndMargins_data()
{
// input
QTest::addColumn<int>("columns");
QTest::addColumn<int>("rows");
QTest::addColumn<QSize>("sizehint");
// expected
QTest::addColumn<PointList>("expectedpositions");
QTest::newRow("1x1 grid") << 1 << 1 << QSize(100, 100)
<< (PointList() << QPoint(0, 3) );
QTest::newRow("2x1 grid") << 2 << 1 << QSize(100, 100)
<< (PointList() << QPoint(0, 3)
<< QPoint(0+100+5, 3));
QTest::newRow("3x1 grid") << 3 << 1 << QSize(100, 100)
<< (PointList() << QPoint(0, 3)
<< QPoint(0+100+5, 3)
<< QPoint(0 + 2*105, 3));
QTest::newRow("1x2 grid") << 1 << 2 << QSize(100, 100)
<< (PointList() << QPoint(0, 3)
<< QPoint(0, 3+100+10));
QTest::newRow("1x3 grid") << 1 << 3 << QSize(100, 100)
<< (PointList() << QPoint(0, 3)
<< QPoint(0, 3+100+10)
<< QPoint(0, 3+2*110));
QTest::newRow("2x2 grid") << 2 << 2 << QSize(100, 100)
<< (PointList() << QPoint(0, 3) << QPoint(0+100+5, 3)
<< QPoint(0, 3+100+10) << QPoint(0+100+5, 3+100+10));
}
void tst_QGridLayout::styleDependentSpacingsAndMargins()
{
QFETCH(int, columns);
QFETCH(int, rows);
QFETCH(QSize, sizehint);
QFETCH(PointList, expectedpositions);
QApplication::setStyle(new CustomLayoutStyle());
QWidget widget;
setFrameless(&widget);
QGridLayout layout(&widget);
QList<QPointer<SizeHinterFrame> > sizehinters;
for (int i = 0; i < rows; ++i) {
for (int j = 0; j < columns; ++j) {
SizeHinterFrame *sh = new SizeHinterFrame(sizehint);
sh->setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));
sh->setParent(&widget);
sizehinters.append(sh);
layout.addWidget(sh, i, j);
}
}
layout.setColumnStretch(columns, 1);
layout.setRowStretch(rows, 1);
widget.show();
widget.adjustSize();
QApplication::processEvents();
for (int pi = 0; pi < expectedpositions.count(); ++pi) {
QCOMPARE(sizehinters.at(pi)->pos(), expectedpositions.at(pi));
}
}
void tst_QGridLayout::layoutSpacing_data()
{
QTest::addColumn<QWidget*>("widget");
// expected
QTest::addColumn<PointList>("expectedpositions");
QTest::addColumn<int>("hSpacing");
QTest::addColumn<int>("vSpacing");
QTest::addColumn<bool>("customSubElementRect");
CustomLayoutStyle *style = new CustomLayoutStyle();
{
// If the layoutSpacing is negative, the layouting code will call
// layoutSpacing()
style->hspacing = -1;
style->vspacing = -1;
style->reimplementSubelementRect = false;
QApplication::setStyle(style);
QWidget *w = new QWidget();
setFrameless(w);
QVBoxLayout *layout = new QVBoxLayout();
QRadioButton *rb1 = new QRadioButton(QLatin1String("Radio 1"), w);
QRadioButton *rb2 = new QRadioButton(QLatin1String("Radio 2"), w);
QRadioButton *rb3 = new QRadioButton(QLatin1String("Radio 3"), w);
layout->addWidget(rb1, 0, Qt::AlignTop | Qt::AlignLeft);
layout->addWidget(rb2, 0, Qt::AlignTop | Qt::AlignLeft);
layout->addWidget(rb3, 0, Qt::AlignTop | Qt::AlignLeft);
QPushButton *b1 = new QPushButton(QLatin1String("Push 1"), w);
QPushButton *b2 = new QPushButton(QLatin1String("Push 2"), w);
QPushButton *b3 = new QPushButton(QLatin1String("Push 3"), w);
layout->addWidget(b1, 0, Qt::AlignTop | Qt::AlignLeft);
layout->addWidget(b2, 0, Qt::AlignTop | Qt::AlignLeft);
layout->addWidget(b3, 0, Qt::AlignTop | Qt::AlignLeft);
layout->addStretch(1);
w->setLayout(layout);
int rh = rb1->sizeHint().height();
int ph = b1->sizeHint().height();
QTest::newRow("1x6, radio + push buttons")
<< w << (PointList()
<< QPoint(0, 3)
<< QPoint(0, 3 + rh + 2)
<< QPoint(0, 3 + 2*(rh + 2))
<< QPoint(0, 3 + 2*(rh + 2) + (rh + 10))
<< QPoint(0, 3 + 2*(rh + 2) + (rh + 10 + ph + 10))
<< QPoint(0, 3 + 2*(rh + 2) + rh + 10 + 2*(ph + 10)))
<< style->hspacing << style->vspacing << style->reimplementSubelementRect;
}
{
style->hspacing = -1;
style->vspacing = -1;
style->reimplementSubelementRect = false;
QApplication::setStyle(style);
QWidget *w = new QWidget();
setFrameless(w);
QHBoxLayout *layout = new QHBoxLayout();
QLineEdit *le1 = new QLineEdit(w);
QLineEdit *le2 = new QLineEdit(w);
QLineEdit *le3 = new QLineEdit(w);
layout->addWidget(le1, 0, Qt::AlignTop | Qt::AlignLeft);
layout->addWidget(le2, 0, Qt::AlignTop | Qt::AlignLeft);
layout->addWidget(le3, 0, Qt::AlignTop | Qt::AlignLeft);
QPushButton *b1 = new QPushButton(QLatin1String("Push 1"), w);
QPushButton *b2 = new QPushButton(QLatin1String("Push 2"), w);
QPushButton *b3 = new QPushButton(QLatin1String("Push 3"), w);
layout->addWidget(b1, 0, Qt::AlignTop | Qt::AlignLeft);
layout->addWidget(b2, 0, Qt::AlignTop | Qt::AlignLeft);
layout->addWidget(b3, 0, Qt::AlignTop | Qt::AlignLeft);
layout->addStretch(1);
w->setLayout(layout);
int lw = le1->sizeHint().width();
int pw = b1->sizeHint().width();
QTest::newRow("6x1, line edit + push buttons")
<< w << (PointList()
<< QPoint(0, 3)
<< QPoint(0 + lw + 5, 3)
<< QPoint(0 + 2*(lw + 5), 3)
<< QPoint(0 + 3*(lw + 5), 3)
<< QPoint(0 + 3*(lw + 5) + 1*(pw + 2), 3)
<< QPoint(0 + 3*(lw + 5) + 2*(pw + 2), 3))
<< style->hspacing << style->vspacing << style->reimplementSubelementRect;
}
{
style->hspacing = 5;
style->vspacing = 10;
style->reimplementSubelementRect = true;
QApplication::setStyle(style);
QWidget *w = new QWidget();
setFrameless(w);
QVBoxLayout *layout = new QVBoxLayout();
QPushButton *pb1 = new QPushButton(QLatin1String("Push 1"), w);
QGroupBox *g1 = new QGroupBox(QLatin1String("GroupBox 1"), w);
QRadioButton *rb = new QRadioButton(QLatin1String("Radio 1"), g1);
QVBoxLayout *g1layout = new QVBoxLayout();
g1layout->addWidget(rb);
g1->setLayout(g1layout);
QPushButton *pb3 = new QPushButton(QLatin1String("Push 3"), w);
layout->addWidget(pb1);
layout->addWidget(g1 );
layout->addWidget(pb3);
w->setLayout(layout);
QSize psh = pb1->sizeHint();
QSize gsh = g1->sizeHint();
QTest::newRow("subElementRect1")
<< w << (PointList()
<< QPoint(0, 3)
<< QPoint(0, 3 + psh.height() + 10 - 10)
<< QPoint(0, 3 + psh.height() + 10 - 10 + gsh.height() + 10)
)
<< style->hspacing << style->vspacing << style->reimplementSubelementRect;
}
{
style->hspacing = 5;
style->vspacing = 10;
style->reimplementSubelementRect = true;
QApplication::setStyle(style);
QWidget *w = new QWidget();
setFrameless(w);
QGridLayout *layout = new QGridLayout();
QPushButton *pb1 = new QPushButton(QLatin1String("Push 1"), w);
QPushButton *pb2 = new QPushButton(QLatin1String("Push 2"), w);
QPushButton *pb3 = new QPushButton(QLatin1String("Push 3"), w);
QPushButton *pb4 = new QPushButton(QLatin1String("Push 4"), w);
layout->addWidget(pb1, 0, 0);
layout->addWidget(pb2, 0, 1);
layout->addWidget(pb3, 0, 2);
layout->addWidget(pb4, 1, 0, Qt::AlignTop);
QFrame *f1 = new QFrame(w);
f1->setFrameStyle(QFrame::Box | QFrame::Plain);
f1->setMinimumSize(100, 20);
f1->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
layout->addWidget(f1, 1, 1, Qt::AlignTop);
QPushButton *pb6 = new QPushButton(QLatin1String("Push 6"), w);
QPushButton *pb7 = new QPushButton(QLatin1String("Push 7"), w);
QPushButton *pb8 = new QPushButton(QLatin1String("Push 8"), w);
QPushButton *pb9 = new QPushButton(QLatin1String("Push 9"), w);
layout->addWidget(pb6, 1, 2, Qt::AlignTop);
layout->addWidget(pb7, 2, 0, Qt::AlignTop);
layout->addWidget(pb8, 2, 1, Qt::AlignTop);
layout->addWidget(pb9, 2, 2, Qt::AlignTop);
layout->setColumnStretch(2, 1);
layout->setRowStretch(2, 1);
w->setLayout(layout);
int c[3];
c[0] = pb1->sizeHint().width();
c[1] = f1->minimumSize().width() - 2*4;
c[2] = pb3->sizeHint().width();
int r[3];
r[0] = pb1->sizeHint().height();
r[1] = pb4->sizeHint().height();
r[2] = pb7->sizeHint().height();
QTest::newRow("subElementRect2")
<< w << (PointList()
<< QPoint(0, 3)
<< QPoint(0 + c[0] + 5, 3)
<< QPoint(0 + c[0] + 5 + c[1] + 5, 3)
<< QPoint(0, 3 + r[0] + 10)
<< QPoint(0 + c[0] + 5 - 4, 3 + r[0] + 10 - 9)
<< QPoint(0 + c[0] + 5 + c[1] + 5, 3 + r[0] + 10)
<< QPoint(0, 3 + r[0] + 10 + r[1] + 10)
<< QPoint(0 + c[0] + 5, 3 + r[0] + 10 + r[1] + 10)
<< QPoint(0 + c[0] + 5 + c[1] + 5, 3 + r[0] + 10 + r[1] + 10)
)
<< style->hspacing << style->vspacing << style->reimplementSubelementRect;
}
{
style->hspacing = 5;
style->vspacing = 10;
style->reimplementSubelementRect = true;
QApplication::setStyle(style);
QWidget *w = new QWidget();
setFrameless(w);
QVBoxLayout *layout = new QVBoxLayout();
QPushButton *pb1 = new QPushButton(QLatin1String("Push 1"), w);
QGroupBox *g1 = new QGroupBox(QLatin1String("GroupBox 1"), w);
QRadioButton *rb = new QRadioButton(QLatin1String("Radio 1"), g1);
QVBoxLayout *g1layout = new QVBoxLayout();
g1layout->addWidget(rb);
g1->setLayout(g1layout);
QPushButton *pb3 = new QPushButton(QLatin1String("Push 3"), w);
pb1->setAttribute(Qt::WA_LayoutUsesWidgetRect, true);
g1->setAttribute(Qt::WA_LayoutUsesWidgetRect, true);
pb3->setAttribute(Qt::WA_LayoutUsesWidgetRect, true);
layout->addWidget(pb1);
layout->addWidget(g1 );
layout->addWidget(pb3);
w->setLayout(layout);
QSize psh = pb1->sizeHint();
QSize gsh = g1->sizeHint();
QTest::newRow("subElementRect1, use widgetRect")
<< w << (PointList()
<< QPoint(0, 3)
<< QPoint(0, 3 + psh.height() + 10)
<< QPoint(0, 3 + psh.height() + 10 + gsh.height() + 10)
)
<< style->hspacing << style->vspacing << style->reimplementSubelementRect;
}
{
style->hspacing = 5;
style->vspacing = 10;
style->reimplementSubelementRect = true;
QApplication::setStyle(style);
QWidget *w = new QWidget();
setFrameless(w);
QVBoxLayout *layout = new QVBoxLayout();
QPushButton *pb1 = new QPushButton(QLatin1String("Push 1"), w);
QGroupBox *g1 = new QGroupBox(QLatin1String("GroupBox 1"), w);
QRadioButton *rb = new QRadioButton(QLatin1String("Radio 1"), g1);
QVBoxLayout *g1layout = new QVBoxLayout();
g1layout->addWidget(rb);
g1->setLayout(g1layout);
QPushButton *pb3 = new QPushButton(QLatin1String("Push 3"), w);
pb1->setAttribute(Qt::WA_LayoutUsesWidgetRect, false);
g1->setAttribute(Qt::WA_LayoutUsesWidgetRect, false);
pb3->setAttribute(Qt::WA_LayoutUsesWidgetRect, false);
layout->addWidget(pb1);
layout->addWidget(g1 );
layout->addWidget(pb3);
w->setLayout(layout);
QSize psh = pb1->sizeHint();
QSize gsh = g1->sizeHint();
QTest::newRow("subElementRect1, use layoutItemRect")
<< w << (PointList()
<< QPoint(0, 3)
<< QPoint(0, 3 + psh.height() + 10 - 10)
<< QPoint(0, 3 + psh.height() + 10 - 10 + gsh.height() + 10)
)
<< style->hspacing << style->vspacing << style->reimplementSubelementRect;
}
{
/* A 3x4 gridlayout, modified arrowpad example:
* [PB]
* [PB] [PB]
* |PB|
* | |
* | |
*
* Here the bottom pushbutton has a span
*/
style->hspacing = -1;
style->vspacing = -1;
style->reimplementSubelementRect = false;
QApplication::setStyle(style);
QWidget *w = new QWidget();
setFrameless(w);
QGridLayout *layout = new QGridLayout();
QPushButton *left = new QPushButton(w);
QPushButton *up = new QPushButton(w);
QPushButton *right = new QPushButton(w);
QPushButton *down = new QPushButton(w);
layout->addWidget(up, 0, 1);
layout->addWidget(left, 1, 0);
layout->addWidget(right, 1, 2);
layout->addWidget(down, 2, 1, 3, 1);
w->setLayout(layout);
int pw = up->sizeHint().width();
int ph = up->sizeHint().height();
QTest::newRow("arrowpad with span")
<< w << (PointList()
<< QPoint(0 + pw + 5, 3)
<< QPoint(0, 3 + ph + 10)
<< QPoint(0 + pw + 5 + pw + 5, 3 + ph + 10)
<< QPoint(0 + pw + 5, 3 + ph + 10 + ph + 10)
)
<< style->hspacing << style->vspacing << style->reimplementSubelementRect;
}
for (int yoff = 0; yoff < 5; ++yoff)
{
for (int xoff = 0; xoff < 5; ++xoff) {
/* A 3x4 gridlayout, modified arrowpad example:
* [empty cells]
* [PB]
* [PB] [PB]
* [PB]
*
* It has 0-4 empty rows at the top and 0-4 empty columns to the left.
*/
style->hspacing = -1;
style->vspacing = -1;
style->reimplementSubelementRect = false;
QApplication::setStyle(style);
QWidget *w = new QWidget();
setFrameless(w);
QGridLayout *layout = new QGridLayout();
QPushButton *left = new QPushButton(w);
QPushButton *up = new QPushButton(w);
QPushButton *right = new QPushButton(w);
QPushButton *down = new QPushButton(w);
layout->addWidget(up, yoff + 0, xoff + 1);
layout->addWidget(left, yoff + 1, xoff + 0);
layout->addWidget(right, yoff + 1, xoff + 2);
layout->addWidget(down, yoff + 2, xoff + 1, 3, 1);
w->setLayout(layout);
int pw = up->sizeHint().width();
int ph = up->sizeHint().height();
QByteArray testName = QString::fromLatin1("arrowpad with %1 empty rows, %2 empty columns").arg(yoff).arg(xoff).toLatin1();
QTest::newRow(testName.data())
<< w << (PointList()
<< QPoint(0 + pw + 5, 3)
<< QPoint(0, 3 + ph + 10)
<< QPoint(0 + pw + 5 + pw + 5, 3 + ph + 10)
<< QPoint(0 + pw + 5, 3 + ph + 10 + ph + 10)
)
<< style->hspacing << style->vspacing << style->reimplementSubelementRect;
}
}
}
void tst_QGridLayout::layoutSpacing()
{
QFETCH(QWidget *, widget);
QFETCH(PointList, expectedpositions);
QFETCH(int, hSpacing);
QFETCH(int, vSpacing);
QFETCH(bool, customSubElementRect);
QWidget toplevel;
setFrameless(&toplevel);
CustomLayoutStyle *style = new CustomLayoutStyle();
style->hspacing = hSpacing;
style->vspacing = vSpacing;
style->reimplementSubelementRect = customSubElementRect;
QApplication::setStyle(style);
widget->setParent(&toplevel);
widget->resize(widget->sizeHint());
toplevel.show();
QVERIFY(QTest::qWaitForWindowExposed(&toplevel));
QLayout *layout = widget->layout();
QVERIFY(layout);
//QTest::qWait(2000);
for (int pi = 0; pi < expectedpositions.count(); ++pi) {
QLayoutItem *item = layout->itemAt(pi);
//qDebug() << item->widget()->pos();
QCOMPARE(item->widget()->pos(), expectedpositions.at(pi));
}
}
void tst_QGridLayout::spacing()
{
QWidget w;
setFrameless(&w);
CustomLayoutStyle *style = new CustomLayoutStyle();
style->hspacing = 5;
style->vspacing = 10;
w.setStyle(style);
QGridLayout grid(&w);
QCOMPARE(style->hspacing, grid.horizontalSpacing());
QCOMPARE(style->vspacing, grid.verticalSpacing());
QCOMPARE(grid.spacing(), -1);
grid.setVerticalSpacing(5);
QCOMPARE(5, grid.horizontalSpacing());
QCOMPARE(5, grid.verticalSpacing());
QCOMPARE(grid.spacing(), 5);
grid.setVerticalSpacing(-1);
QCOMPARE(style->hspacing, grid.horizontalSpacing());
QCOMPARE(style->vspacing, grid.verticalSpacing());
style->hspacing = 5;
style->vspacing = 5;
QCOMPARE(grid.spacing(), 5);
grid.setHorizontalSpacing(20);
QCOMPARE(grid.spacing(), -1);
style->vspacing = 20;
QCOMPARE(grid.horizontalSpacing(), 20);
QCOMPARE(grid.verticalSpacing(), 20);
QCOMPARE(grid.spacing(), 20);
grid.setHorizontalSpacing(-1);
QCOMPARE(grid.spacing(), -1);
style->hspacing = 20;
QCOMPARE(grid.spacing(), 20);
delete style;
}
void populate(QGridLayout *layout, int row, int kind)
{
if (kind == 0) {
QWidget *widget = new QWidget;
widget->setFixedSize(100, 100);
layout->addWidget(widget, row, 0);
} else if (kind == 1) {
layout->addItem(new QSpacerItem(10, 10), row, 0);
}
}
void tst_QGridLayout::spacerWithSpacing()
{
// Tests all combinations of widget (w), spacer (s) and no layoutitem (-)
// to see if they are laid out correctly.
// Note that a combination of "s-" or "-s" should only give the height of "s"
const int expectedHeight[] = {
302,// www
211,// wws
201,// ww-
211,// wsw
120,// wss
110,// ws-
201,// w-w
110,// w-s
100,// w--
211,// sww
120,// sws
110,// sw-
120,// ssw
30,// sss
20,// ss-
110,// s-w
20,// s-s
10,// s--
201,// -ww
110,// -ws
100,// -w-
110,// -sw
20,// -ss
10,// -s-
100,// --w
10,// --s
000 // ---
};
int ii = 0;
for (int i = 0; i < 3; ++i) {
for (int j = 0; j < 3; ++j) {
for (int k = 0; k < 3; ++k) {
QWidget window;
QGridLayout layout(&window);
layout.setSpacing(1);
layout.setMargin(0);
populate(&layout, 0, i);
populate(&layout, 1, j);
populate(&layout, 2, k);
QCOMPARE(window.sizeHint().height(), expectedHeight[ii]);
++ii;
}
}
}
}
void tst_QGridLayout::contentsRect()
{
QWidget w;
setFrameless(&w);
QGridLayout grid;
w.setLayout(&grid);
grid.addWidget(new QPushButton(&w));
w.show();
QVERIFY(QTest::qWaitForWindowExposed(&w));
int l, t, r, b;
grid.getContentsMargins(&l, &t, &r, &b);
QRect geom = grid.geometry();
QCOMPARE(geom.adjusted(+l, +t, -r, -b), grid.contentsRect());
}
void tst_QGridLayout::distributeMultiCell()
{
QWidget w;
Qt42Style *style = new Qt42Style();
style->spacing = 9;
w.setStyle(style);
QGridLayout grid;
w.setLayout(&grid);
SizeHinter le1(200, 20, &w);
le1.setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed));
SizeHinter le2(200, 20, &w);
le2.setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed));
SizeHinter box(80, 57, &w);
box.setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Expanding));
box.setMinimumSize(80, 57);
grid.addWidget(&le1, 0, 0, 1, 1);
grid.addWidget(&le2, 1, 0, 1, 1);
grid.addWidget(&box, 0, 1, 2, 1);
QCOMPARE(box.sizeHint().height(), 57);
QCOMPARE(w.sizeHint().height(), 11 + 57 + 11);
}
void tst_QGridLayout::taskQTBUG_27420_takeAtShouldUnparentLayout()
{
QSharedPointer<QGridLayout> outer(new QGridLayout);
QPointer<QGridLayout> inner = new QGridLayout;
outer->addLayout(inner, 0, 0);
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_QGridLayout::replaceWidget()
{
QWidget wdg;
QGridLayout *l = new QGridLayout();
const int itemCount = 9;
QLabel *labels[itemCount];
// setup layout
for (int n = 0; n < itemCount; ++n) {
int x = n % 3;
int y = n / 3;
labels[n] = new QLabel(QString("label %1").arg(n));
Qt::Alignment align = (n % 3 ? Qt::AlignLeft : Qt::AlignRight);
l->addWidget(labels[n], x * 3, y * 3, (n % 2) + 1, (n + 1) % 2 + 1, align);
}
wdg.setLayout(l);
// iterate and replace
for (int n = 0; n < itemCount; n += 2) {
int i = l->indexOf(labels[n]);
int fromRow, fromCol, fromRowSpan, fromColSpan;
l->getItemPosition(i, &fromRow, &fromCol, &fromRowSpan, &fromColSpan);
Qt::Alignment fromAlign = l->itemAt(i)->alignment();
// do replace
QPushButton *pb = new QPushButton("replaced");
QLayoutItem *olditem = l->replaceWidget(labels[n], pb);
// verify
QCOMPARE(i, l->indexOf(pb));
QVERIFY(olditem != 0);
QCOMPARE(l->indexOf(labels[n]), -1);
int toRow, toCol, toRowSpan, toColSpan;
l->getItemPosition(i, &toRow, &toCol, &toRowSpan, &toColSpan);
QCOMPARE(fromRow, toRow);
QCOMPARE(fromCol, toCol);
QCOMPARE(fromRowSpan, toRowSpan);
QCOMPARE(fromColSpan, toColSpan);
Qt::Alignment toAlign = l->itemAt(i)->alignment();
QCOMPARE(fromAlign, toAlign);
// clean up
olditem->widget()->deleteLater();
delete olditem;
}
}
QTEST_MAIN(tst_QGridLayout)
#include "tst_qgridlayout.moc"
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