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qt5base-lts/tests/auto/qstyle/tst_qstyle.cpp
Qt by Nokia 38be0d1383 Initial import from the monolithic Qt. 
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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12
2011-04-27 12:05:43 +02:00

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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.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtTest/QtTest>
#include <qlayout.h>
#include "qstyle.h"
#include <qevent.h>
#include <qpainter.h>
#include <qpixmap.h>
#include <qapplication.h>
#include <qwidget.h>
#include <qlabel.h>
#include <qstyleoption.h>
#include <qscrollbar.h>
#include <qprogressbar.h>
#include <qtoolbutton.h>
#include <qtoolbar.h>
#include <qplastiquestyle.h>
#include <qwindowsstyle.h>
#include <qcdestyle.h>
#include <qmotifstyle.h>
#include <qcommonstyle.h>
#include <qproxystyle.h>
#include <qstylefactory.h>
#include <qimagereader.h>
#include <qimagewriter.h>
#include <qmenu.h>
#include <qpushbutton.h>
#include <qspinbox.h>
#include <qcombobox.h>
#include <qradiobutton.h>
#include <qlineedit.h>
#include <qmdiarea.h>
#if defined(Q_OS_SYMBIAN)
#define SRCDIR "."
#endif
#include <QCleanlooksStyle>
#ifdef Q_WS_MAC
#include <QMacStyle>
#endif
#ifdef Q_WS_WIN
#include <QWindowsXPStyle>
#include <QWindowsVistaStyle>
#endif
#ifdef Q_OS_WINCE
#include <QWindowsCEStyle>
#endif
#ifdef Q_OS_WINCE_WM
#include <QWindowsMobileStyle>
#include <windows.h>
static bool qt_wince_is_smartphone() {
wchar_t tszPlatform[64];
if (SystemParametersInfo(SPI_GETPLATFORMTYPE,
sizeof(tszPlatform)/sizeof(*tszPlatform),tszPlatform,0))
if (0 == _tcsicmp(reinterpret_cast<const wchar_t *> (QString::fromLatin1("Smartphone").utf16()), tszPlatform))
return true;
return false;
}
#endif
#ifdef Q_WS_S60
#include <qs60style.h>
#endif
#include <qwidget.h>
//TESTED_CLASS=
//TESTED_FILES=gui/styles/qstyle.h gui/styles/qstyle.cpp gui/styles/qplastiquestyle.cpp gui/styles/qwindowsstyle.cpp gui/styles/qwindowsxpstyle.cpp gui/styles/qwindowsvistastyle.cpp gui/styles/qmotifstyle.cpp gui/styles/qs60style.cpp
class tst_QStyle : public QObject
{
Q_OBJECT
public:
tst_QStyle();
virtual ~tst_QStyle();
private:
void testAllFunctions(QStyle *);
void testScrollBarSubControls(QStyle *);
void testPainting(QStyle *style, const QString &platform);
private slots:
void drawItemPixmap();
void initTestCase();
void cleanupTestCase();
void init();
void cleanup();
void testMotifStyle();
void testPlastiqueStyle();
void testWindowsStyle();
void testCDEStyle();
void testWindowsXPStyle();
void testWindowsVistaStyle();
void testCleanlooksStyle();
void testMacStyle();
void testWindowsCEStyle();
void testWindowsMobileStyle();
void testS60Style();
void testStyleFactory();
void testProxyStyle();
void pixelMetric();
void progressBarChangeStyle();
void defaultFont();
void testDrawingShortcuts();
private:
void lineUpLayoutTest(QStyle *);
QWidget *testWidget;
};
tst_QStyle::tst_QStyle()
{
testWidget = 0;
}
tst_QStyle::~tst_QStyle()
{
}
class MyWidget : public QWidget
{
public:
MyWidget( QWidget* QWidget=0, const char* name=0 );
protected:
void paintEvent( QPaintEvent* );
};
void tst_QStyle::init()
{
testWidget = new MyWidget( 0, "testObject");
}
void tst_QStyle::cleanup()
{
delete testWidget;
testWidget = 0;
}
void tst_QStyle::initTestCase()
{
}
void tst_QStyle::cleanupTestCase()
{
}
void tst_QStyle::testStyleFactory()
{
QStringList keys = QStyleFactory::keys();
#ifndef QT_NO_STYLE_MOTIF
QVERIFY(keys.contains("Motif"));
#endif
#ifndef QT_NO_STYLE_CLEANLOOKS
QVERIFY(keys.contains("Cleanlooks"));
#endif
#ifndef QT_NO_STYLE_PLASTIQUE
QVERIFY(keys.contains("Plastique"));
#endif
#ifndef QT_NO_STYLE_CDE
QVERIFY(keys.contains("CDE"));
#endif
#ifndef QT_NO_STYLE_WINDOWS
QVERIFY(keys.contains("Windows"));
#endif
#ifndef QT_NO_STYLE_MOTIF
QVERIFY(keys.contains("Motif"));
#endif
#ifdef Q_WS_WIN
if (QSysInfo::WindowsVersion >= QSysInfo::WV_XP &&
QSysInfo::WindowsVersion < QSysInfo::WV_NT_based)
QVERIFY(keys.contains("WindowsXP"));
if (QSysInfo::WindowsVersion >= QSysInfo::WV_VISTA &&
QSysInfo::WindowsVersion < QSysInfo::WV_NT_based)
QVERIFY(keys.contains("WindowsVista"));
#endif
foreach (QString styleName , keys) {
QStyle *style = QStyleFactory::create(styleName);
QVERIFY2(style != 0, qPrintable(QString::fromLatin1("Fail to load style '%1'").arg(styleName)));
delete style;
}
}
class CustomProxy : public QProxyStyle
{
virtual int pixelMetric(PixelMetric metric, const QStyleOption *option = 0,
const QWidget *widget = 0) const
{
if (metric == QStyle::PM_ButtonIconSize)
return 13;
return QProxyStyle::pixelMetric(metric, option, widget);
}
};
void tst_QStyle::testProxyStyle()
{
QProxyStyle *proxyStyle = new QProxyStyle();
QVERIFY(proxyStyle->baseStyle());
QStyle *style = new QWindowsStyle;
QVERIFY(style->proxy() == style);
proxyStyle->setBaseStyle(style);
QVERIFY(style->proxy() == proxyStyle);
QVERIFY(style->parent() == proxyStyle);
QVERIFY(proxyStyle->baseStyle() == style);
testAllFunctions(proxyStyle);
proxyStyle->setBaseStyle(0);
QVERIFY(proxyStyle->baseStyle());
qApp->setStyle(proxyStyle);
QProxyStyle doubleProxy(new QProxyStyle(new QWindowsStyle()));
testAllFunctions(&doubleProxy);
CustomProxy customStyle;
QLineEdit edit;
edit.setStyle(&customStyle);
QVERIFY(!customStyle.parent());
QVERIFY(edit.style()->pixelMetric(QStyle::PM_ButtonIconSize) == 13);
}
void tst_QStyle::drawItemPixmap()
{
testWidget->resize(300, 300);
testWidget->show();
QPixmap p(QString(SRCDIR) + "/task_25863.png", "PNG");
QPixmap actualPix = QPixmap::grabWidget(testWidget);
#ifdef Q_OS_SYMBIAN
// QPixmap cannot be assumed to be exactly same, unless it is created from exactly same content.
// In Symbian, pixmap format might get "optimized" depending on how QPixmap is created.
// Therefore, force the content to specific format and compare QImages.
// Then re-create the QPixmaps and compare those.
QImage i1 = p.toImage().convertToFormat(QImage::Format_ARGB32_Premultiplied);
p = QPixmap::fromImage(i1);
QImage i2 = actualPix.toImage().convertToFormat(QImage::Format_ARGB32_Premultiplied);
actualPix = QPixmap::fromImage(i2);
QVERIFY(i1 == i2);
#endif
QVERIFY(pixmapsAreEqual(&actualPix,&p));
testWidget->hide();
}
void tst_QStyle::testAllFunctions(QStyle *style)
{
QStyleOption opt;
opt.init(testWidget);
testWidget->setStyle(style);
//Tests styleHint with default arguments for potential crashes
for ( int hint = 0 ; hint < int(QStyle::SH_Menu_Mask); ++hint) {
style->styleHint(QStyle::StyleHint(hint));
style->styleHint(QStyle::StyleHint(hint), &opt, testWidget);
}
//Tests pixelMetric with default arguments for potential crashes
for ( int pm = 0 ; pm < int(QStyle::PM_LayoutVerticalSpacing); ++pm) {
style->pixelMetric(QStyle::PixelMetric(pm));
style->pixelMetric(QStyle::PixelMetric(pm), &opt, testWidget);
}
//Tests drawControl with default arguments for potential crashes
for ( int control = 0 ; control < int(QStyle::CE_ColumnViewGrip); ++control) {
QPixmap surface(QSize(200, 200));
QPainter painter(&surface);
style->drawControl(QStyle::ControlElement(control), &opt, &painter, 0);
}
//Tests drawComplexControl with default arguments for potential crashes
{
QPixmap surface(QSize(200, 200));
QPainter painter(&surface);
QStyleOptionComboBox copt1;
copt1.init(testWidget);
QStyleOptionGroupBox copt2;
copt2.init(testWidget);
QStyleOptionSizeGrip copt3;
copt3.init(testWidget);
QStyleOptionSlider copt4;
copt4.init(testWidget);
copt4.minimum = 0;
copt4.maximum = 100;
copt4.tickInterval = 25;
copt4.sliderValue = 50;
QStyleOptionSpinBox copt5;
copt5.init(testWidget);
QStyleOptionTitleBar copt6;
copt6.init(testWidget);
QStyleOptionToolButton copt7;
copt7.init(testWidget);
QStyleOptionQ3ListView copt8;
copt8.init(testWidget);
copt8.items << QStyleOptionQ3ListViewItem();
QStyleOptionComplex copt9;
copt9.initFrom(testWidget);
style->drawComplexControl(QStyle::CC_SpinBox, &copt5, &painter, 0);
style->drawComplexControl(QStyle::CC_ComboBox, &copt1, &painter, 0);
style->drawComplexControl(QStyle::CC_ScrollBar, &copt4, &painter, 0);
style->drawComplexControl(QStyle::CC_Slider, &copt4, &painter, 0);
style->drawComplexControl(QStyle::CC_ToolButton, &copt7, &painter, 0);
style->drawComplexControl(QStyle::CC_TitleBar, &copt6, &painter, 0);
style->drawComplexControl(QStyle::CC_GroupBox, &copt2, &painter, 0);
style->drawComplexControl(QStyle::CC_Dial, &copt4, &painter, 0);
#ifdef QT3_SUPPORT
style->drawComplexControl(QStyle::CC_Q3ListView, &copt8, &painter, 0);
style->drawComplexControl(QStyle::CC_MdiControls, &copt9, &painter, 0);
#endif
}
//Check standard pixmaps/icons
for ( int i = 0 ; i < int(QStyle::SP_ToolBarVerticalExtensionButton); ++i) {
QPixmap pixmap = style->standardPixmap(QStyle::StandardPixmap(i));
if (pixmap.isNull()) {
qWarning("missing StandardPixmap: %d", i);
}
QIcon icn = style->standardIcon(QStyle::StandardPixmap(i));
if (icn.isNull()) {
qWarning("missing StandardIcon: %d", i);
}
}
style->itemPixmapRect(QRect(0, 0, 100, 100), Qt::AlignHCenter, QPixmap(200, 200));
style->itemTextRect(QFontMetrics(qApp->font()), QRect(0, 0, 100, 100), Qt::AlignHCenter, true, QString("Test"));
testScrollBarSubControls(style);
}
void tst_QStyle::testScrollBarSubControls(QStyle* style)
{
#ifdef Q_OS_WINCE_WM
if (qobject_cast<QWindowsMobileStyle*>(style) && qt_wince_is_smartphone())
QSKIP("SmartPhone doesn't have scrollbar subcontrols.", SkipAll);
#endif
QScrollBar scrollBar;
scrollBar.show();
const QStyleOptionSlider opt = qt_qscrollbarStyleOption(&scrollBar);
foreach (int subControl, QList<int>() << 1 << 2 << 4 << 8) {
#ifdef Q_WS_S60
// in s60style add line and sub line have been removed.
if (subControl == QStyle::SC_ScrollBarAddLine || subControl == QStyle::SC_ScrollBarSubLine )
continue;
#endif
QRect sr = testWidget->style()->subControlRect(QStyle::CC_ScrollBar, &opt,
QStyle::SubControl(subControl), &scrollBar);
QVERIFY(sr.isNull() == false);
}
}
void tst_QStyle::testPlastiqueStyle()
{
#if !defined(QT_NO_STYLE_PLASTIQUE)
QPlastiqueStyle pstyle;
testAllFunctions(&pstyle);
lineUpLayoutTest(&pstyle);
#else
QSKIP("No Plastique style", SkipAll);
#endif
}
void tst_QStyle::testCleanlooksStyle()
{
#if !defined(QT_NO_STYLE_CLEANLOOKS)
QCleanlooksStyle cstyle;
testAllFunctions(&cstyle);
lineUpLayoutTest(&cstyle);
#else
QSKIP("No Cleanlooks style", SkipAll);
#endif
}
void tst_QStyle::testWindowsStyle()
{
QWindowsStyle wstyle;
testAllFunctions(&wstyle);
lineUpLayoutTest(&wstyle);
// Tests drawing indeterminate progress with 0 size: QTBUG-15973
QStyleOptionProgressBar pb;
pb.rect = QRect(0,0,-9,0);
QPixmap surface(QSize(200, 200));
QPainter painter(&surface);
wstyle.drawControl(QStyle::CE_ProgressBar, &pb, &painter, 0);
}
void tst_QStyle::testWindowsXPStyle()
{
#if defined(Q_WS_WIN) && !defined(QT_NO_STYLE_WINDOWSXP)
QWindowsXPStyle xpstyle;
testAllFunctions(&xpstyle);
lineUpLayoutTest(&xpstyle);
#else
QSKIP("No WindowsXP style", SkipAll);
#endif
}
void writeImage(const QString &fileName, QImage image)
{
QImageWriter imageWriter(fileName);
imageWriter.setFormat("png");
qDebug() << "result " << imageWriter.write(image);
}
QImage readImage(const QString &fileName)
{
QImageReader reader(fileName);
return reader.read();
}
void tst_QStyle::testWindowsVistaStyle()
{
#if defined(Q_WS_WIN) && !defined(QT_NO_STYLE_WINDOWSVISTA)
QWindowsVistaStyle vistastyle;
testAllFunctions(&vistastyle);
if (QSysInfo::WindowsVersion == QSysInfo::WV_VISTA)
testPainting(&vistastyle, "vista");
else if (QSysInfo::WindowsVersion == QSysInfo::WV_XP)
testPainting(&vistastyle, "xp");
#endif
}
void comparePixmap(const QString &filename, const QPixmap &pixmap)
{
QImage oldFile = readImage(filename);
QPixmap oldPixmap = QPixmap::fromImage(oldFile);
if (!oldFile.isNull())
QVERIFY(pixmapsAreEqual(&pixmap, &oldPixmap));
else
writeImage(filename, pixmap.toImage());
}
void tst_QStyle::testPainting(QStyle *style, const QString &platform)
{
qDebug("TEST PAINTING");
//Test Menu
QString fileName = "images/" + platform + "/menu.png";
QMenu menu;
menu.setStyle(style);
menu.show();
menu.addAction(new QAction("Test 1", &menu));
menu.addAction(new QAction("Test 2", &menu));
QPixmap pixmap = QPixmap::grabWidget(&menu);
comparePixmap(fileName, pixmap);
//Push button
fileName = "images/" + platform + "/button.png";
QPushButton button("OK");
button.setStyle(style);
button.show();
pixmap = QPixmap::grabWidget(&button);
button.hide();
comparePixmap(fileName, pixmap);
//Push button
fileName = "images/" + platform + "/radiobutton.png";
QRadioButton radiobutton("Check");
radiobutton.setStyle(style);
radiobutton.show();
pixmap = QPixmap::grabWidget(&radiobutton);
radiobutton.hide();
comparePixmap(fileName, pixmap);
//Combo box
fileName = "images/" + platform + "/combobox.png";
QComboBox combobox;
combobox.setStyle(style);
combobox.addItem("Test 1");
combobox.addItem("Test 2");
combobox.show();
pixmap = QPixmap::grabWidget(&combobox);
combobox.hide();
comparePixmap(fileName, pixmap);
//Spin box
fileName = "images/" + platform + "/spinbox.png";
QDoubleSpinBox spinbox;
spinbox.setLocale(QLocale(QLocale::English, QLocale::UnitedStates));
spinbox.setStyle(style);
spinbox.show();
pixmap = QPixmap::grabWidget(&spinbox);
spinbox.hide();
comparePixmap(fileName, pixmap);
QLocale::setDefault(QLocale::system());
//Slider
fileName = "images/" + platform + "/slider.png";
QSlider slider;
slider.setStyle(style);
slider.show();
pixmap = QPixmap::grabWidget(&slider);
slider.hide();
comparePixmap(fileName, pixmap);
//Line edit
fileName = "images/" + platform + "/lineedit.png";
QLineEdit lineedit("Test text");
lineedit.setStyle(style);
lineedit.show();
pixmap = QPixmap::grabWidget(&lineedit);
lineedit.hide();
comparePixmap(fileName, pixmap);
//MDI
fileName = "images/" + platform + "/mdi.png";
QMdiArea mdiArea;
mdiArea.addSubWindow(new QWidget(&mdiArea));
mdiArea.resize(200, 200);
mdiArea.setStyle(style);
mdiArea.show();
pixmap = QPixmap::grabWidget(&mdiArea);
mdiArea.hide();
comparePixmap(fileName, pixmap);
// QToolButton
fileName = "images/" + platform + "/toolbutton.png";
QToolButton tb;
tb.setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
tb.setText("AaQqPpXx");
tb.setIcon(style->standardPixmap(QStyle::SP_DirHomeIcon));
tb.setStyle(style);
tb.show();
pixmap = QPixmap::grabWidget(&tb);
tb.hide();
comparePixmap(fileName, pixmap);
}
void tst_QStyle::testMacStyle()
{
#ifdef Q_WS_MAC
QMacStyle mstyle;
testAllFunctions(&mstyle);
#endif
}
void tst_QStyle::testMotifStyle()
{
#if !defined(QT_NO_STYLE_MOTIF)
QMotifStyle mstyle;
testAllFunctions(&mstyle);
#else
QSKIP("No Motif style", SkipAll);
#endif
}
void tst_QStyle::testCDEStyle()
{
#if !defined(QT_NO_STYLE_CDE)
QCDEStyle cstyle;
testAllFunctions(&cstyle);
#else
QSKIP("No CDE style", SkipAll);
#endif
}
void tst_QStyle::testWindowsCEStyle()
{
#if defined(Q_OS_WINCE)
QWindowsCEStyle cstyle;
testAllFunctions(&cstyle);
#else
QSKIP("No WindowsCEStyle style", SkipAll);
#endif
}
void tst_QStyle::testWindowsMobileStyle()
{
#if defined(Q_OS_WINCE_WM)
QWindowsMobileStyle cstyle;
testAllFunctions(&cstyle);
#else
QSKIP("No WindowsMobileStyle style", SkipAll);
#endif
}
void tst_QStyle::testS60Style()
{
#if defined(Q_WS_S60)
QS60Style cstyle;
testAllFunctions(&cstyle);
#else
QSKIP("No S60Style style", SkipAll);
#endif
}
// Helper class...
MyWidget::MyWidget( QWidget* parent, const char* name )
: QWidget( parent )
{
setObjectName(name);
}
void MyWidget::paintEvent( QPaintEvent* )
{
QPainter p(this);
QPixmap big(400,400);
big.fill(Qt::green);
style()->drawItemPixmap(&p, rect(), Qt::AlignCenter, big);
}
class Qt42Style : public QWindowsStyle
{
Q_OBJECT
public:
Qt42Style() : QWindowsStyle()
{
margin_toplevel = 10;
margin = 5;
spacing = 0;
}
virtual int pixelMetric(PixelMetric metric, const QStyleOption * option = 0,
const QWidget * widget = 0 ) const;
int margin_toplevel;
int margin;
int spacing;
};
int Qt42Style::pixelMetric(PixelMetric metric, const QStyleOption * option /*= 0*/,
const QWidget * widget /*= 0*/ ) const
{
switch (metric) {
case QStyle::PM_DefaultTopLevelMargin:
return margin_toplevel;
break;
case QStyle::PM_DefaultChildMargin:
return margin;
break;
case QStyle::PM_DefaultLayoutSpacing:
return spacing;
break;
default:
break;
}
return QWindowsStyle::pixelMetric(metric, option, widget);
}
void tst_QStyle::pixelMetric()
{
Qt42Style *style = new Qt42Style();
QCOMPARE(style->pixelMetric(QStyle::PM_DefaultTopLevelMargin), 10);
QCOMPARE(style->pixelMetric(QStyle::PM_DefaultChildMargin), 5);
QCOMPARE(style->pixelMetric(QStyle::PM_DefaultLayoutSpacing), 0);
style->margin_toplevel = 0;
style->margin = 0;
style->spacing = 0;
QCOMPARE(style->pixelMetric(QStyle::PM_DefaultTopLevelMargin), 0);
QCOMPARE(style->pixelMetric(QStyle::PM_DefaultChildMargin), 0);
QCOMPARE(style->pixelMetric(QStyle::PM_DefaultLayoutSpacing), 0);
style->margin_toplevel = -1;
style->margin = -1;
style->spacing = -1;
QCOMPARE(style->pixelMetric(QStyle::PM_DefaultTopLevelMargin), -1);
QCOMPARE(style->pixelMetric(QStyle::PM_DefaultChildMargin), -1);
QCOMPARE(style->pixelMetric(QStyle::PM_DefaultLayoutSpacing), -1);
delete style;
}
void tst_QStyle::progressBarChangeStyle()
{
#if !defined(QT_NO_STYLE_PLASTIQUE) && !defined(QT_NO_STYLE_WINDOWS)
//test a crashing situation (task 143530)
//where changing the styles and deleting a progressbar would crash
QWindowsStyle style1;
QPlastiqueStyle style2;
QProgressBar *progress=new QProgressBar;
progress->setStyle(&style1);
progress->show();
progress->setStyle(&style2);
QTest::qWait(100);
delete progress;
QTest::qWait(100);
//before the correction, there would be a crash here
#elif !defined(QT_NO_STYLE_S60) && !defined(QT_NO_STYLE_WINDOWS)
//test a crashing situation (task 143530)
//where changing the styles and deleting a progressbar would crash
QWindowsStyle style1;
QS60Style style2;
QProgressBar *progress=new QProgressBar;
progress->setStyle(&style1);
progress->show();
progress->setStyle(&style2);
QTest::qWait(100);
delete progress;
QTest::qWait(100);
//before the correction, there would be a crash here
#else
QSKIP("Either style Plastique or Windows or S60 missing", SkipAll);
#endif
}
void tst_QStyle::lineUpLayoutTest(QStyle *style)
{
QWidget widget;
QHBoxLayout layout;
QFont font;
font.setPointSize(9); //Plastique is lined up for odd numbers...
widget.setFont(font);
QSpinBox spinbox(&widget);
QLineEdit lineedit(&widget);
QComboBox combo(&widget);
combo.setEditable(true);
layout.addWidget(&spinbox);
layout.addWidget(&lineedit);
layout.addWidget(&combo);
widget.setLayout(&layout);
widget.setStyle(style);
// propagate the style.
foreach (QWidget *w, qFindChildren<QWidget *>(&widget))
w->setStyle(style);
widget.show();
QTest::qWait( 500 );
QVERIFY(qAbs(spinbox.height() - lineedit.height()) <= 1);
QVERIFY(qAbs(spinbox.height() - combo.height()) <= 1);
}
void tst_QStyle::defaultFont()
{
QFont defaultFont = qApp->font();
QFont pointFont = defaultFont;
pointFont.setPixelSize(9);
qApp->setFont(pointFont);
QPushButton button;
button.show();
qApp->processEvents();
qApp->setFont(defaultFont);
}
class DrawTextStyle : public QProxyStyle
{
Q_OBJECT
public:
DrawTextStyle(QStyle *base = 0) : QProxyStyle(), alignment(0) { setBaseStyle(base); }
void drawItemText(QPainter *painter, const QRect &rect,
int flags, const QPalette &pal, bool enabled,
const QString &text, QPalette::ColorRole textRole = QPalette::NoRole) const
{
DrawTextStyle *that = (DrawTextStyle *)this;
that->alignment = flags;
QProxyStyle::drawItemText(painter, rect, flags, pal, enabled, text, textRole);
}
int alignment;
};
void tst_QStyle::testDrawingShortcuts()
{
{
QWidget w;
QToolButton *tb = new QToolButton(&w);
tb->setText("&abc");
DrawTextStyle *dts = new DrawTextStyle;
w.show();
tb->setStyle(dts);
QPixmap::grabWidget(tb);
QStyleOptionToolButton sotb;
sotb.initFrom(tb);
bool showMnemonic = dts->styleHint(QStyle::SH_UnderlineShortcut, &sotb, tb);
QVERIFY(dts->alignment & (showMnemonic ? Qt::TextShowMnemonic : Qt::TextHideMnemonic));
delete dts;
}
{
QToolBar w;
QToolButton *tb = new QToolButton(&w);
tb->setText("&abc");
DrawTextStyle *dts = new DrawTextStyle;
w.addWidget(tb);
w.show();
tb->setStyle(dts);
QPixmap::grabWidget(tb);
QStyleOptionToolButton sotb;
sotb.initFrom(tb);
bool showMnemonic = dts->styleHint(QStyle::SH_UnderlineShortcut, &sotb, tb);
QVERIFY(dts->alignment & (showMnemonic ? Qt::TextShowMnemonic : Qt::TextHideMnemonic));
delete dts;
}
}
QTEST_MAIN(tst_QStyle)
#include "tst_qstyle.moc"
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