509 lines
21 KiB
C++
509 lines
21 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qwindowsysteminterface_qpa.h"
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#include "qwindowsysteminterface_qpa_p.h"
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#include "private/qguiapplication_p.h"
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#include "private/qevent_p.h"
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#include "private/qtouchdevice_p.h"
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#include <QAbstractEventDispatcher>
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#include <QPlatformDrag>
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#include <qdebug.h>
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QT_BEGIN_NAMESPACE
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QElapsedTimer QWindowSystemInterfacePrivate::eventTime;
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//------------------------------------------------------------
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//
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// Callback functions for plugins:
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//
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QList<QWindowSystemInterfacePrivate::WindowSystemEvent *> QWindowSystemInterfacePrivate::windowSystemEventQueue;
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QMutex QWindowSystemInterfacePrivate::queueMutex;
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extern QPointer<QWindow> qt_last_mouse_receiver;
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/*!
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\class QWindowSystemInterface
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\since 5.0
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\internal
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\preliminary
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\ingroup qpa
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\brief The QWindowSystemInterface provides an event queue for the QPA platform.
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The platform plugins call the various functions to notify about events. The events are queued
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until sendWindowSystemEvents() is called by the event dispatcher.
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*/
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void QWindowSystemInterface::handleEnterEvent(QWindow *tlw)
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{
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if (tlw) {
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QWindowSystemInterfacePrivate::EnterEvent *e = new QWindowSystemInterfacePrivate::EnterEvent(tlw);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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}
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void QWindowSystemInterface::handleLeaveEvent(QWindow *tlw)
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{
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QWindowSystemInterfacePrivate::LeaveEvent *e = new QWindowSystemInterfacePrivate::LeaveEvent(tlw);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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void QWindowSystemInterface::handleWindowActivated(QWindow *tlw)
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{
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QWindowSystemInterfacePrivate::ActivatedWindowEvent *e = new QWindowSystemInterfacePrivate::ActivatedWindowEvent(tlw);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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void QWindowSystemInterface::handleWindowStateChanged(QWindow *tlw, Qt::WindowState newState)
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{
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QWindowSystemInterfacePrivate::WindowStateChangedEvent *e =
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new QWindowSystemInterfacePrivate::WindowStateChangedEvent(tlw, newState);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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void QWindowSystemInterface::handleGeometryChange(QWindow *tlw, const QRect &newRect)
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{
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QWindowSystemInterfacePrivate::GeometryChangeEvent *e = new QWindowSystemInterfacePrivate::GeometryChangeEvent(tlw,newRect);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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void QWindowSystemInterface::handleSynchronousGeometryChange(QWindow *tlw, const QRect &newRect)
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{
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QWindowSystemInterfacePrivate::GeometryChangeEvent e(tlw,newRect);
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QGuiApplicationPrivate::processWindowSystemEvent(&e); // send event immediately.
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}
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void QWindowSystemInterface::handleCloseEvent(QWindow *tlw)
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{
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if (tlw) {
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QWindowSystemInterfacePrivate::CloseEvent *e =
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new QWindowSystemInterfacePrivate::CloseEvent(tlw);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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}
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void QWindowSystemInterface::handleSynchronousCloseEvent(QWindow *tlw)
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{
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if (tlw) {
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QWindowSystemInterfacePrivate::CloseEvent e(tlw);
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QGuiApplicationPrivate::processWindowSystemEvent(&e);
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}
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}
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/*!
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\a tlw == 0 means that \a ev is in global coords only
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*/
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void QWindowSystemInterface::handleMouseEvent(QWindow *w, const QPointF & local, const QPointF & global, Qt::MouseButtons b, Qt::KeyboardModifiers mods) {
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unsigned long time = QWindowSystemInterfacePrivate::eventTime.elapsed();
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handleMouseEvent(w, time, local, global, b, mods);
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}
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void QWindowSystemInterface::handleMouseEvent(QWindow *tlw, ulong timestamp, const QPointF & local, const QPointF & global, Qt::MouseButtons b, Qt::KeyboardModifiers mods)
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{
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QWindowSystemInterfacePrivate::MouseEvent * e =
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new QWindowSystemInterfacePrivate::MouseEvent(tlw, timestamp, local, global, b, mods);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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bool QWindowSystemInterface::tryHandleSynchronousShortcutEvent(QWindow *w, int k, Qt::KeyboardModifiers mods,
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const QString & text, bool autorep, ushort count)
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{
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unsigned long timestamp = QWindowSystemInterfacePrivate::eventTime.elapsed();
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return tryHandleSynchronousShortcutEvent(w, timestamp, k, mods, text, autorep, count);
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}
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bool QWindowSystemInterface::tryHandleSynchronousShortcutEvent(QWindow *w, ulong timestamp, int k, Qt::KeyboardModifiers mods,
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const QString & text, bool autorep, ushort count)
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{
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QKeyEvent qevent(QEvent::ShortcutOverride, k, mods, text, autorep, count);
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qevent.setTimestamp(timestamp);
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return QGuiApplicationPrivate::instance()->shortcutMap.tryShortcutEvent(w, &qevent);
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}
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bool QWindowSystemInterface::tryHandleSynchronousExtendedShortcutEvent(QWindow *w, int k, Qt::KeyboardModifiers mods,
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quint32 nativeScanCode, quint32 nativeVirtualKey, quint32 nativeModifiers,
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const QString &text, bool autorep, ushort count)
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{
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unsigned long timestamp = QWindowSystemInterfacePrivate::eventTime.elapsed();
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return tryHandleSynchronousExtendedShortcutEvent(w, timestamp, k, mods, nativeScanCode, nativeVirtualKey, nativeModifiers, text, autorep, count);
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}
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bool QWindowSystemInterface::tryHandleSynchronousExtendedShortcutEvent(QWindow *w, ulong timestamp, int k, Qt::KeyboardModifiers mods,
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quint32 nativeScanCode, quint32 nativeVirtualKey, quint32 nativeModifiers,
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const QString &text, bool autorep, ushort count)
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{
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QKeyEventEx qevent(QEvent::ShortcutOverride, k, mods, text, autorep, count, nativeScanCode, nativeVirtualKey, nativeModifiers);
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qevent.setTimestamp(timestamp);
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return QGuiApplicationPrivate::instance()->shortcutMap.tryShortcutEvent(w, &qevent);
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}
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void QWindowSystemInterface::handleKeyEvent(QWindow *w, QEvent::Type t, int k, Qt::KeyboardModifiers mods, const QString & text, bool autorep, ushort count) {
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unsigned long time = QWindowSystemInterfacePrivate::eventTime.elapsed();
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handleKeyEvent(w, time, t, k, mods, text, autorep, count);
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}
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void QWindowSystemInterface::handleKeyEvent(QWindow *tlw, ulong timestamp, QEvent::Type t, int k, Qt::KeyboardModifiers mods, const QString & text, bool autorep, ushort count)
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{
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QWindowSystemInterfacePrivate::KeyEvent * e =
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new QWindowSystemInterfacePrivate::KeyEvent(tlw, timestamp, t, k, mods, text, autorep, count);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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void QWindowSystemInterface::handleExtendedKeyEvent(QWindow *w, QEvent::Type type, int key, Qt::KeyboardModifiers modifiers,
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quint32 nativeScanCode, quint32 nativeVirtualKey,
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quint32 nativeModifiers,
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const QString& text, bool autorep,
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ushort count)
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{
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unsigned long time = QWindowSystemInterfacePrivate::eventTime.elapsed();
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handleExtendedKeyEvent(w, time, type, key, modifiers, nativeScanCode, nativeVirtualKey, nativeModifiers,
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text, autorep, count);
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}
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void QWindowSystemInterface::handleExtendedKeyEvent(QWindow *tlw, ulong timestamp, QEvent::Type type, int key,
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Qt::KeyboardModifiers modifiers,
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quint32 nativeScanCode, quint32 nativeVirtualKey,
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quint32 nativeModifiers,
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const QString& text, bool autorep,
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ushort count)
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{
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QWindowSystemInterfacePrivate::KeyEvent * e =
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new QWindowSystemInterfacePrivate::KeyEvent(tlw, timestamp, type, key, modifiers,
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nativeScanCode, nativeVirtualKey, nativeModifiers, text, autorep, count);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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void QWindowSystemInterface::handleWheelEvent(QWindow *w, const QPointF & local, const QPointF & global, int d, Qt::Orientation o, Qt::KeyboardModifiers mods) {
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unsigned long time = QWindowSystemInterfacePrivate::eventTime.elapsed();
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handleWheelEvent(w, time, local, global, d, o, mods);
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}
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void QWindowSystemInterface::handleWheelEvent(QWindow *tlw, ulong timestamp, const QPointF & local, const QPointF & global, int d, Qt::Orientation o, Qt::KeyboardModifiers mods)
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{
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QPoint point = (o == Qt::Vertical) ? QPoint(0, d) : QPoint(d, 0);
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handleWheelEvent(tlw, timestamp, local, global, point, point, mods);
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}
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void QWindowSystemInterface::handleWheelEvent(QWindow *w, const QPointF & local, const QPointF & global, QPoint pixelDelta, QPoint angleDelta, Qt::KeyboardModifiers mods)
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{
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unsigned long time = QWindowSystemInterfacePrivate::eventTime.elapsed();
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handleWheelEvent(w, time, local, global, pixelDelta, angleDelta, mods);
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}
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void QWindowSystemInterface::handleWheelEvent(QWindow *tlw, ulong timestamp, const QPointF & local, const QPointF & global, QPoint pixelDelta, QPoint angleDelta, Qt::KeyboardModifiers mods)
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{
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// Qt 4 sends two separate wheel events for horizontal and vertical
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// deltas. For Qt 5 we want to send the deltas in one event, but at the
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// same time preserve source and behavior compatibility with Qt 4.
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//
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// In addition high-resolution pixel-based deltas are also supported.
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// Platforms that does not support these may pass a null point here.
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// Angle deltas must always be sent in addition to pixel deltas.
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QWindowSystemInterfacePrivate::WheelEvent *e;
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if (angleDelta.isNull())
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return;
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// Simple case: vertical deltas only:
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if (angleDelta.y() != 0 && angleDelta.x() == 0) {
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e = new QWindowSystemInterfacePrivate::WheelEvent(tlw, timestamp, local, global, pixelDelta, angleDelta, angleDelta.y(), Qt::Vertical, mods);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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return;
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}
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// Simple case: horizontal deltas only:
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if (angleDelta.y() == 0 && angleDelta.x() != 0) {
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e = new QWindowSystemInterfacePrivate::WheelEvent(tlw, timestamp, local, global, pixelDelta, angleDelta, angleDelta.x(), Qt::Horizontal, mods);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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return;
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}
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// Both horizontal and vertical deltas: Send two wheel events.
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// The first event contains the Qt 5 pixel and angle delta as points,
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// and in addition the Qt 4 compatibility vertical angle delta.
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e = new QWindowSystemInterfacePrivate::WheelEvent(tlw, timestamp, local, global, pixelDelta, angleDelta, angleDelta.y(), Qt::Vertical, mods);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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// The second event contains null pixel and angle points and the
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// Qt 4 compatibility horizontal angle delta.
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e = new QWindowSystemInterfacePrivate::WheelEvent(tlw, timestamp, local, global, QPoint(), QPoint(), angleDelta.x(), Qt::Horizontal, mods);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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int QWindowSystemInterfacePrivate::windowSystemEventsQueued()
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{
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queueMutex.lock();
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int ret = windowSystemEventQueue.count();
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queueMutex.unlock();
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return ret;
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}
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QWindowSystemInterfacePrivate::WindowSystemEvent * QWindowSystemInterfacePrivate::getWindowSystemEvent()
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{
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queueMutex.lock();
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QWindowSystemInterfacePrivate::WindowSystemEvent *ret;
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if (windowSystemEventQueue.isEmpty())
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ret = 0;
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else
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ret = windowSystemEventQueue.takeFirst();
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queueMutex.unlock();
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return ret;
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}
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void QWindowSystemInterfacePrivate::queueWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent *ev)
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{
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queueMutex.lock();
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windowSystemEventQueue.append(ev);
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queueMutex.unlock();
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QAbstractEventDispatcher *dispatcher = QGuiApplicationPrivate::qt_qpa_core_dispatcher();
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if (dispatcher)
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dispatcher->wakeUp();
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}
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void QWindowSystemInterface::registerTouchDevice(QTouchDevice *device)
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{
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QTouchDevicePrivate::registerDevice(device);
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}
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void QWindowSystemInterface::handleTouchEvent(QWindow *w, QTouchDevice *device,
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const QList<TouchPoint> &points, Qt::KeyboardModifiers mods)
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{
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unsigned long time = QWindowSystemInterfacePrivate::eventTime.elapsed();
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handleTouchEvent(w, time, device, points, mods);
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}
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QList<QTouchEvent::TouchPoint> QWindowSystemInterfacePrivate::convertTouchPoints(const QList<QWindowSystemInterface::TouchPoint> &points, QEvent::Type *type)
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{
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QList<QTouchEvent::TouchPoint> touchPoints;
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Qt::TouchPointStates states;
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QTouchEvent::TouchPoint p;
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QList<QWindowSystemInterface::TouchPoint>::const_iterator point = points.constBegin();
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QList<QWindowSystemInterface::TouchPoint>::const_iterator end = points.constEnd();
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while (point != end) {
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p.setId(point->id);
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p.setPressure(point->pressure);
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states |= point->state;
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p.setState(point->state);
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const QPointF screenPos = point->area.center();
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p.setScreenPos(screenPos);
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p.setScreenRect(point->area);
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// The local pos and rect are not set, they will be calculated
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// when the event gets processed by QGuiApplication.
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p.setNormalizedPos(point->normalPosition);
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p.setVelocity(point->velocity);
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p.setFlags(point->flags);
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p.setRawScreenPositions(point->rawPositions);
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touchPoints.append(p);
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++point;
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}
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// Determine the event type based on the combined point states.
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if (type) {
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*type = QEvent::TouchUpdate;
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if (states == Qt::TouchPointPressed)
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*type = QEvent::TouchBegin;
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else if (states == Qt::TouchPointReleased)
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*type = QEvent::TouchEnd;
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}
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return touchPoints;
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}
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void QWindowSystemInterface::handleTouchEvent(QWindow *tlw, ulong timestamp, QTouchDevice *device,
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const QList<TouchPoint> &points, Qt::KeyboardModifiers mods)
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{
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if (!points.size()) // Touch events must have at least one point
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return;
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if (!QTouchDevicePrivate::isRegistered(device)) // Disallow passing bogus, non-registered devices.
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return;
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QEvent::Type type;
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QList<QTouchEvent::TouchPoint> touchPoints = QWindowSystemInterfacePrivate::convertTouchPoints(points, &type);
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QWindowSystemInterfacePrivate::TouchEvent *e =
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new QWindowSystemInterfacePrivate::TouchEvent(tlw, timestamp, type, device, touchPoints, mods);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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void QWindowSystemInterface::handleTouchCancelEvent(QWindow *w, QTouchDevice *device,
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Qt::KeyboardModifiers mods)
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{
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unsigned long time = QWindowSystemInterfacePrivate::eventTime.elapsed();
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handleTouchCancelEvent(w, time, device, mods);
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}
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void QWindowSystemInterface::handleTouchCancelEvent(QWindow *w, ulong timestamp, QTouchDevice *device,
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Qt::KeyboardModifiers mods)
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{
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QWindowSystemInterfacePrivate::TouchEvent *e =
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new QWindowSystemInterfacePrivate::TouchEvent(w, timestamp, QEvent::TouchCancel, device,
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QList<QTouchEvent::TouchPoint>(), mods);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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void QWindowSystemInterface::handleScreenOrientationChange(QScreen *screen, Qt::ScreenOrientation orientation)
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{
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QWindowSystemInterfacePrivate::ScreenOrientationEvent *e =
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new QWindowSystemInterfacePrivate::ScreenOrientationEvent(screen, orientation);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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void QWindowSystemInterface::handleScreenGeometryChange(QScreen *screen, const QRect &geometry)
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{
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QWindowSystemInterfacePrivate::ScreenGeometryEvent *e =
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new QWindowSystemInterfacePrivate::ScreenGeometryEvent(screen, geometry);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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void QWindowSystemInterface::handleScreenAvailableGeometryChange(QScreen *screen, const QRect &availableGeometry)
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{
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QWindowSystemInterfacePrivate::ScreenAvailableGeometryEvent *e =
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new QWindowSystemInterfacePrivate::ScreenAvailableGeometryEvent(screen, availableGeometry);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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void QWindowSystemInterface::handleScreenLogicalDotsPerInchChange(QScreen *screen, qreal dpiX, qreal dpiY)
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{
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QWindowSystemInterfacePrivate::ScreenLogicalDotsPerInchEvent *e =
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new QWindowSystemInterfacePrivate::ScreenLogicalDotsPerInchEvent(screen, dpiX, dpiY);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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void QWindowSystemInterface::handleThemeChange(QWindow *tlw)
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{
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QWindowSystemInterfacePrivate::ThemeChangeEvent *e = new QWindowSystemInterfacePrivate::ThemeChangeEvent(tlw);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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void QWindowSystemInterface::handleMapEvent(QWindow *tlw)
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{
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QWindowSystemInterfacePrivate::MapEvent *e = new QWindowSystemInterfacePrivate::MapEvent(tlw);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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void QWindowSystemInterface::handleUnmapEvent(QWindow *tlw)
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{
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QWindowSystemInterfacePrivate::UnmapEvent *e = new QWindowSystemInterfacePrivate::UnmapEvent(tlw);
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QWindowSystemInterfacePrivate::queueWindowSystemEvent(e);
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}
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void QWindowSystemInterface::handleSynchronousExposeEvent(QWindow *tlw, const QRegion ®ion)
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{
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QWindowSystemInterfacePrivate::ExposeEvent e(tlw, region);
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QGuiApplicationPrivate::processWindowSystemEvent(&e); // send event immediately.
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}
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bool QWindowSystemInterface::sendWindowSystemEvents(QAbstractEventDispatcher *eventDispatcher, QEventLoop::ProcessEventsFlags flags)
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{
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int nevents = 0;
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// handle gui and posted events
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QCoreApplication::sendPostedEvents();
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while (true) {
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QWindowSystemInterfacePrivate::WindowSystemEvent *event;
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if (!(flags & QEventLoop::ExcludeUserInputEvents)
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&& QWindowSystemInterfacePrivate::windowSystemEventsQueued() > 0) {
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// process a pending user input event
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event = QWindowSystemInterfacePrivate::getWindowSystemEvent();
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if (!event)
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break;
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} else {
|
|
break;
|
|
}
|
|
|
|
if (eventDispatcher->filterEvent(event)) {
|
|
delete event;
|
|
continue;
|
|
}
|
|
|
|
nevents++;
|
|
|
|
QGuiApplicationPrivate::processWindowSystemEvent(event);
|
|
delete event;
|
|
}
|
|
|
|
return (nevents > 0);
|
|
}
|
|
|
|
int QWindowSystemInterface::windowSystemEventsQueued()
|
|
{
|
|
return QWindowSystemInterfacePrivate::windowSystemEventsQueued();
|
|
}
|
|
|
|
QPlatformDragQtResponse QWindowSystemInterface::handleDrag(QWindow *w, const QMimeData *dropData, const QPoint &p, Qt::DropActions supportedActions)
|
|
{
|
|
return QGuiApplicationPrivate::processDrag(w, dropData, p,supportedActions);
|
|
}
|
|
|
|
QPlatformDropQtResponse QWindowSystemInterface::handleDrop(QWindow *w, const QMimeData *dropData, const QPoint &p, Qt::DropActions supportedActions)
|
|
{
|
|
return QGuiApplicationPrivate::processDrop(w, dropData, p,supportedActions);
|
|
}
|
|
|
|
/*!
|
|
\fn static QWindowSystemInterface::handleNativeEvent(QWindow *window, const QByteArray &eventType, void *message, long *result)
|
|
\brief Passes a native event identified by \a eventType to the \a window.
|
|
|
|
\note This function can only be called from the GUI thread.
|
|
\sa QPlatformNativeInterface::setEventFilter()
|
|
*/
|
|
|
|
bool QWindowSystemInterface::handleNativeEvent(QWindow *window, const QByteArray &eventType, void *message, long *result)
|
|
{
|
|
return QGuiApplicationPrivate::processNativeEvent(window, eventType, message, result);
|
|
}
|
|
|
|
QT_END_NAMESPACE
|