// Copyright (C) 2021 The Qt Company Ltd. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only #include "qwidgetbaselinetest.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined(Q_OS_APPLE) #include #endif QT_BEGIN_NAMESPACE class DebugStyle : public QProxyStyle { public: DebugStyle(QStyle *style, QWidgetBaselineTest* baselineTest) : QProxyStyle(style), baselineTest(baselineTest) { setParent(baselineTest); QStylePrivate::get(this)->name = style->name(); } void drawPrimitive(PrimitiveElement element, const QStyleOption *option, QPainter *painter, const QWidget *widget) const override { QProxyStyle::drawPrimitive(element, option, painter, widget); drawDebugRect("QStyle::drawPrimitive", Qt::magenta, element, option, widget, painter); } void drawControl(ControlElement element, const QStyleOption *option, QPainter *painter, const QWidget *widget) const override { QProxyStyle::drawControl(element, option, painter, widget); drawDebugRect("QStyle::drawControl", Qt::magenta, element, option, widget, painter); } void drawComplexControl(ComplexControl control, const QStyleOptionComplex *option, QPainter *painter, const QWidget *widget) const override { QProxyStyle::drawComplexControl(control, option, painter, widget); drawDebugRect("QStyle::drawComplexControl", Qt::magenta, control, option, widget, painter); } QRect subControlRect(ComplexControl control, const QStyleOptionComplex *option, SubControl subControl, const QWidget *widget) const override { auto ret = QProxyStyle::subControlRect(control, option, subControl, widget); drawDebugRect("QStyle::subControlRect", Qt::red, subControl, option, widget); return ret; } private: template void drawDebugRect(const QString &type, QColor color, T element, const QStyleOption *option, const QWidget *widget, QPainter *painter = nullptr) const { QMetaEnum metaEnum = QMetaEnum::fromType(); auto *elementName = metaEnum.valueToKey(element); baselineTest->reportDebugRect(type, color, QString::fromLatin1(elementName), option->rect, widget, painter); if (widget) { auto *className = widget->metaObject()->className(); baselineTest->reportDebugRect("QWidget::rect", Qt::green, QString::fromLatin1(className), widget->rect(), widget, painter); baselineTest->reportDebugRect("QWidget::contentsRect", Qt::green, QString::fromLatin1(className), widget->contentsRect(), widget, painter); } if (painter) { baselineTest->reportDebugRect("QPainter::clipRegion", Qt::red, QString::fromLatin1(elementName), painter->clipRegion().boundingRect(), widget, painter); } } QWidgetBaselineTest *baselineTest = nullptr; }; QWidgetBaselineTest::QWidgetBaselineTest() { // Fail by throwing, since we QVERIFY deep in the helper functions QTest::setThrowOnFail(true); qApp->setStyle(new DebugStyle(qApp->style(), this)); QBaselineTest::setProject("Widgets"); // Set key platform properties that are relevant for the appearance of widgets const QString platformName = QGuiApplication::platformName() + "-" + QSysInfo::productType(); QBaselineTest::addClientProperty("PlatformName", platformName); QBaselineTest::addClientProperty("OSVersion", QSysInfo::productVersion()); // Encode a number of parameters that impact the UI QPalette palette; QFont font; const QString styleName = #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) QApplication::style()->metaObject()->className(); #else QApplication::style()->name(); #endif // turn off animations and make the cursor flash time really long to avoid blinking QApplication::style()->setProperty("_qt_animation_time", QTime()); QApplication::style()->setProperty("_q_no_animation", true); QUnifiedTimer::instance()->setSpeedModifier(100000); QGuiApplication::styleHints()->setCursorFlashTime(50000); QByteArray appearanceBytes; { QDataStream appearanceStream(&appearanceBytes, QIODevice::WriteOnly); appearanceStream << palette << font; } #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) const quint16 appearanceId = qChecksum(appearanceBytes, appearanceBytes.size()); #else const quint16 appearanceId = qChecksum(appearanceBytes); #endif // Assume that text that's darker than the background means we run in light mode // This results in a more meaningful appearance ID between different runs than // just the checksum of the various attributes. const QColor windowColor = palette.window().color(); const QColor textColor = palette.text().color(); const QString appearanceIdString = (windowColor.value() > textColor.value() ? QString("light-%2") : QString("dark-%2")) .arg(appearanceId, 0, 16); QBaselineTest::addClientProperty("AppearanceID", appearanceIdString); #if defined(Q_OS_APPLE) QBaselineTest::addClientProperty("LiquidGlass", qt_apple_runningWithLiquidGlass() ? "enabled" : "disabled"); #endif QBaselineTest::addClientProperty("DevicePixelRatio", QString::number(QGuiApplication::primaryScreen()->devicePixelRatio())); QBaselineTest::addClientProperty("Style", styleName); QBaselineTest::setProjectImageKeys({ "GitBranch", "OSVersion", "PlatformName", "Style", "AppearanceID" }); // let users know where they can find the results qDebug() << "PlatformName computed to be:" << platformName; qDebug() << "Appearance ID computed as:" << appearanceIdString; } void QWidgetBaselineTest::initTestCase() { // Check and setup the environment. Failure to do so skips the test. QByteArray msg; if (!QBaselineTest::connectToBaselineServer(&msg)) QSKIP(msg); } void QWidgetBaselineTest::init() { QVERIFY(!window); background = new QWidget(nullptr, Qt::FramelessWindowHint); QPalette pal; QImage checkerboard(QSize(20, 20), QImage::Format_Grayscale8); checkerboard.fill(Qt::white); QPainter painter(&checkerboard); painter.fillRect(0, 0, 10, 10, Qt::lightGray); painter.fillRect(10, 10, 10, 10, Qt::lightGray); painter.end(); pal.setBrush(QPalette::Window, checkerboard); background->setPalette(pal); window = new QWidget(background, Qt::Window | Qt::FramelessWindowHint | Qt::NoDropShadowWindowHint); window->setWindowTitle(QTest::currentDataTag()); window->setFocusPolicy(Qt::StrongFocus); #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0) background->setScreen(QGuiApplication::primaryScreen()); window->setScreen(QGuiApplication::primaryScreen()); #endif background->move(QGuiApplication::primaryScreen()->availableGeometry().topLeft()); window->move(QGuiApplication::primaryScreen()->availableGeometry().topLeft()); debugRects = QJsonObject{}; doInit(); } void QWidgetBaselineTest::cleanup() { doCleanup(); delete background; background = nullptr; window = nullptr; } void QWidgetBaselineTest::cleanupTestCase() { QBaselineTest::finalizeAndDisconnect(); } void QWidgetBaselineTest::makeVisible() { Q_ASSERT(window); // Always open window on primary screen QScreen *preferredScreen = QGuiApplication::primaryScreen(); const QRect preferredScreenRect = preferredScreen->availableGeometry(); background->setScreen(preferredScreen); background->move(preferredScreenRect.topLeft()); background->showMaximized(); QVERIFY(QTest::qWaitForWindowExposed(background)); window->setScreen(preferredScreen); window->move(preferredScreenRect.topLeft()); window->show(); QVERIFY(QTest::qWaitForWindowExposed(window)); QApplicationPrivate::setActiveWindow(window); QVERIFY(QTest::qWaitForWindowActive(window)); // explicitly set focus on the window so that the test widget doesn't have it window->setFocus(Qt::OtherFocusReason); QTRY_COMPARE(window->focusWidget(), window); } /* Grabs the test window and returns the resulting QImage, without compensating for DPR differences. */ QImage QWidgetBaselineTest::takeSnapshot() { // Process events for whatever state changes was initiated // prior to the snapshot. QCoreApplication::processEvents(); // Render to QImage instead of going via QWidget::grab(), // as the latter will typically use an RGB32 image, and // we want to detect issues in the alpha-channel too. const auto dpr = window->devicePixelRatio(); const auto size = window->size(); QImage image(size * dpr, QImage::Format_ARGB32_Premultiplied); image.setDevicePixelRatio(dpr); // The widget might claim to be be opaque, but we want to detect if it lies image.fill(Qt::transparent); window->render(&image, {}, QRect({}, size), QWidget::DrawWindowBackground | QWidget::DrawChildren | QWidget::IgnoreMask ); if (!debugRects.isEmpty()) { QJsonDocument doc(debugRects); image.setText("DebugRects", doc.toJson(QJsonDocument::Compact)); } return image; } /* Grabs the test window screen and returns the resulting QImage, without compensating for DPR differences. This can be used for popup windows. */ QImage QWidgetBaselineTest::takeScreenSnapshot(const QRect& windowRect) { // make sure all effects are done - wait longer here because entire // windows might be fading in and out. QTest::qWait(750); return window->screen()->grabWindow(0, windowRect.x(), windowRect.y(), windowRect.width(), windowRect.height()).toImage(); } /*! Sets standard widget properties on the test window and its children, and uploads snapshots. The widgets are returned in the same state that they had before. Call this helper after setting up the test window. */ void QWidgetBaselineTest::takeStandardSnapshots() { makeVisible(); QWidget *oldFocusWidget = testWindow()->focusWidget(); QCOMPARE(oldFocusWidget, testWindow()); QBASELINE_CHECK_DEFERRED(takeSnapshot(), "default"); // try hard to set focus QWidget *testWidget = window->nextInFocusChain(); if (!testWidget) testWidget = window->findChild(); QVERIFY(testWidget); // use TabFocusReason, some widgets handle that specifically to e.g. select testWidget->setFocus(Qt::TabFocusReason); if (testWindow()->focusWidget() != oldFocusWidget) { QBASELINE_CHECK_DEFERRED(takeSnapshot(), "focused"); // set focus back oldFocusWidget->setFocus(Qt::OtherFocusReason); } else { qWarning() << "Couldn't set focus on tested widget" << testWidget; } // this disables all children window->setEnabled(false); QBASELINE_CHECK_DEFERRED(takeSnapshot(), "disabled"); window->setEnabled(true); // show and activate another window so that our test window becomes inactive QWidget otherWindow; otherWindow.move(window->geometry().bottomRight() + QPoint(10, 10)); otherWindow.resize(50, 50); otherWindow.setWindowFlags(Qt::CustomizeWindowHint | Qt::FramelessWindowHint | Qt::NoDropShadowWindowHint); otherWindow.show(); otherWindow.windowHandle()->requestActivate(); QVERIFY(QTest::qWaitForWindowActive(&otherWindow)); QBASELINE_CHECK_DEFERRED(takeSnapshot(), "inactive"); window->windowHandle()->requestActivate(); QVERIFY(QTest::qWaitForWindowActive(window)); if (window->focusWidget()) window->focusWidget()->clearFocus(); } void QWidgetBaselineTest::reportDebugRect(const QString &type, const QColor &color, const QString &label, QRect widgetRect, const QWidget *widget, QPainter *painter) { const qreal dpr = widget ? widget->devicePixelRatio() : painter ? painter->device()->devicePixelRatio() : 1.0; QRect windowRect = widget ? widgetRect.translated(widget->mapTo(widget->window(), QPoint())) : widgetRect; QRect rect(windowRect.topLeft() * dpr, windowRect.size() * dpr); auto typeObject = debugRects[type].toObject(); if (typeObject.isEmpty()) { typeObject["color"] = color.name(); typeObject["rects"] = QJsonArray(); } auto rects = typeObject["rects"].toArray(); rects.append(QJsonObject{ { "x", rect.x() }, { "y", rect.y() }, { "width", rect.width() }, { "height", rect.height() }, { "label", label }, }); typeObject["rects"] = rects; debugRects[type] = typeObject; } QT_END_NAMESPACE