diff options
Diffstat (limited to 'src/corelib/kernel/qcoreevent.cpp')
| -rw-r--r-- | src/corelib/kernel/qcoreevent.cpp | 120 |
1 files changed, 36 insertions, 84 deletions
diff --git a/src/corelib/kernel/qcoreevent.cpp b/src/corelib/kernel/qcoreevent.cpp index 85b5d2457e..9c99530268 100644 --- a/src/corelib/kernel/qcoreevent.cpp +++ b/src/corelib/kernel/qcoreevent.cpp @@ -1,44 +1,9 @@ -/**************************************************************************** -** -** Copyright (C) 2020 The Qt Company Ltd. -** Copyright (C) 2016 Intel Corporation. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** 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 Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** 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-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2022 The Qt Company Ltd. +// Copyright (C) 2016 Intel Corporation. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only #include "qcoreevent.h" +#include "qcoreevent_p.h" #include "qcoreapplication.h" #include "qcoreapplication_p.h" @@ -50,6 +15,9 @@ QT_BEGIN_NAMESPACE +Q_TRACE_POINT(qtcore, QEvent_ctor, QEvent *event, QEvent::Type type); +Q_TRACE_POINT(qtcore, QEvent_dtor, QEvent *event, QEvent::Type type); + /*! \class QEvent \inmodule QtCore @@ -111,6 +79,8 @@ QT_BEGIN_NAMESPACE \value ChildAdded An object gets a child (QChildEvent). \value ChildPolished A widget child gets polished (QChildEvent). \value ChildRemoved An object loses a child (QChildEvent). + \value [since 6.7] ChildWindowAdded A child window was added to the window. + \value [since 6.7] ChildWindowRemoved A child window was removed from the window. \value Clipboard The clipboard contents have changed. \value Close Widget was closed (QCloseEvent). \value CloseSoftwareInputPanel A widget wants to close the software input panel (SIP). @@ -118,6 +88,8 @@ QT_BEGIN_NAMESPACE \value ContextMenu Context popup menu (QContextMenuEvent). \value CursorChange The widget's cursor has changed. \value DeferredDelete The object will be deleted after it has cleaned up (QDeferredDeleteEvent) + \value [since 6.6] DevicePixelRatioChange + The devicePixelRatio has changed for this widget's or window's underlying backing store. \value DragEnter The cursor enters a widget during a drag and drop operation (QDragEnterEvent). \value DragLeave The cursor leaves a widget during a drag and drop operation (QDragLeaveEvent). \value DragMove A drag and drop operation is in progress (QDragMoveEvent). @@ -190,8 +162,12 @@ QT_BEGIN_NAMESPACE \value OrientationChange The screens orientation has changes (QScreenOrientationChangeEvent). \value Paint Screen update necessary (QPaintEvent). \value PaletteChange Palette of the widget changed. - \value ParentAboutToChange The widget parent is about to change. - \value ParentChange The widget parent has changed. + \value ParentAboutToChange The object parent is about to change. + Only sent to some object types, such as QWidget. + \value ParentChange The object parent has changed. + Only sent to some object types, such as QWidget. + \value [since 6.7] ParentWindowAboutToChange The parent window is about to change. + \value [since 6.7] ParentWindowChange The parent window has changed. \value PlatformPanel A platform specific panel has been requested. \value PlatformSurface A native platform surface has been created or is about to be destroyed (QPlatformSurfaceEvent). \omitvalue Pointer @@ -199,7 +175,7 @@ QT_BEGIN_NAMESPACE \value PolishRequest The widget should be polished. \value QueryWhatsThis The widget should accept the event if it has "What's This?" help (QHelpEvent). \value Quit The application has exited. - \value ReadOnlyChange Widget's read-only state has changed (since Qt 5.4). + \value [since 5.4] ReadOnlyChange Widget's read-only state has changed. \value RequestSoftwareInputPanel A widget wants to open a software input panel (SIP). \value Resize Widget's size changed (QResizeEvent). \value ScrollPrepare The object needs to fill in its geometry information (QScrollPrepareEvent). @@ -226,7 +202,7 @@ QT_BEGIN_NAMESPACE \omitvalue OkRequest \value TabletEnterProximity Wacom tablet enter proximity event (QTabletEvent), sent to QApplication. \value TabletLeaveProximity Wacom tablet leave proximity event (QTabletEvent), sent to QApplication. - \value TabletTrackingChange The Wacom tablet tracking state has changed (since Qt 5.9). + \value [since 5.9] TabletTrackingChange The Wacom tablet tracking state has changed. \omitvalue ThemeChange \value ThreadChange The object is moved to another thread. This is the last event sent to this object in the previous thread. See QObject::moveToThread(). \value Timer Regular timer events (QTimerEvent). @@ -290,6 +266,7 @@ QT_BEGIN_NAMESPACE \omitvalue NativeGesture \omitvalue WindowChangeInternal \omitvalue ScreenChangeInternal + \omitvalue WindowAboutToChangeInternal */ /*! @@ -299,7 +276,7 @@ QEvent::QEvent(Type type) : t(type), m_reserved(0), m_inputEvent(false), m_pointerEvent(false), m_singlePointEvent(false) { - Q_TRACE(QEvent_ctor, this, t); + Q_TRACE(QEvent_ctor, this, type); } /*! @@ -456,13 +433,16 @@ struct QBasicAtomicBitField { QBasicAtomicInteger<uint> next; QBasicAtomicInteger<uint> data[NumInts]; + constexpr QBasicAtomicBitField() = default; + bool allocateSpecific(int which) noexcept { QBasicAtomicInteger<uint> &entry = data[which / BitsPerInt]; const uint old = entry.loadRelaxed(); const uint bit = 1U << (which % BitsPerInt); - return !(old & bit) // wasn't taken - && entry.testAndSetRelaxed(old, old | bit); // still wasn't taken + if (old & bit) + return false; // already taken + return (entry.fetchAndOrRelaxed(bit) & bit) == 0; // don't update 'next' here - it's unlikely that it will need // to be updated, in the general case, and having 'next' @@ -496,7 +476,7 @@ struct QBasicAtomicBitField { typedef QBasicAtomicBitField<QEvent::MaxUser - QEvent::User + 1> UserEventTypeRegistry; -static UserEventTypeRegistry userEventTypeRegistry; +Q_CONSTINIT static UserEventTypeRegistry userEventTypeRegistry {}; static inline int registerEventTypeZeroBased(int id) noexcept { @@ -539,12 +519,12 @@ int QEvent::registerEventType(int hint) noexcept started one or more timers. Each timer has a unique identifier. A timer is started with QObject::startTimer(). - The QTimer class provides a high-level programming interface that + The QChronoTimer class provides a high-level programming interface that uses signals instead of events. It also provides single-shot timers. The event handler QObject::timerEvent() receives timer events. - \sa QTimer, QObject::timerEvent(), QObject::startTimer(), + \sa QChronoTimer, QObject::timerEvent(), QObject::startTimer(), QObject::killTimer() */ @@ -556,12 +536,7 @@ QTimerEvent::QTimerEvent(int timerId) : QEvent(Timer), id(timerId) {} -/*! - \internal -*/ -QTimerEvent::~QTimerEvent() -{ -} +Q_IMPL_EVENT_COMMON(QTimerEvent) /*! \fn int QTimerEvent::timerId() const @@ -603,12 +578,7 @@ QChildEvent::QChildEvent(Type type, QObject *child) : QEvent(type), c(child) {} -/*! - \internal -*/ -QChildEvent::~QChildEvent() -{ -} +Q_IMPL_EVENT_COMMON(QChildEvent) /*! \fn QObject *QChildEvent::child() const @@ -660,12 +630,7 @@ QDynamicPropertyChangeEvent::QDynamicPropertyChangeEvent(const QByteArray &name) { } -/*! - \internal -*/ -QDynamicPropertyChangeEvent::~QDynamicPropertyChangeEvent() -{ -} +Q_IMPL_EVENT_COMMON(QDynamicPropertyChangeEvent) /*! \fn QByteArray QDynamicPropertyChangeEvent::propertyName() const @@ -677,26 +642,13 @@ QDynamicPropertyChangeEvent::~QDynamicPropertyChangeEvent() */ /*! - Constructs a deferred delete event with an initial loopLevel() of zero. -*/ -QDeferredDeleteEvent::QDeferredDeleteEvent() - : QEvent(QEvent::DeferredDelete) - , level(0) -{ } - -/*! - \internal + Constructs a deferred delete event with the given loop and scope level. */ -QDeferredDeleteEvent::~QDeferredDeleteEvent() +QDeferredDeleteEvent::QDeferredDeleteEvent(int loopLevel, int scopeLevel) + : QEvent(QEvent::DeferredDelete), m_loopLevel(loopLevel), m_scopeLevel(scopeLevel) { } -/*! \fn int QDeferredDeleteEvent::loopLevel() const - - Returns the loop-level in which the event was posted. The - loop-level is set by QCoreApplication::postEvent(). - - \sa QObject::deleteLater() -*/ +Q_IMPL_EVENT_COMMON(QDeferredDeleteEvent) QT_END_NAMESPACE |