diff options
Diffstat (limited to 'src/plugins/generic/bsdmouse/qbsdmouse.cpp')
-rw-r--r-- | src/plugins/generic/bsdmouse/qbsdmouse.cpp | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/src/plugins/generic/bsdmouse/qbsdmouse.cpp b/src/plugins/generic/bsdmouse/qbsdmouse.cpp new file mode 100644 index 0000000000..125d74470b --- /dev/null +++ b/src/plugins/generic/bsdmouse/qbsdmouse.cpp @@ -0,0 +1,161 @@ +/**************************************************************************** +** +** Copyright (C) 2015-2016 Oleksandr Tymoshenko <gonzo@bluezbox.com> +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL21$ +** 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 http://www.qt.io/terms-conditions. For further +** information use the contact form at http://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 2.1 or version 3 as published by the Free +** Software Foundation and appearing in the file LICENSE.LGPLv21 and +** LICENSE.LGPLv3 included in the packaging of this file. Please review the +** following information to ensure the GNU Lesser General Public License +** requirements will be met: https://www.gnu.org/licenses/lgpl.html and +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** As a special exception, The Qt Company gives you certain additional +** rights. These rights are described in The Qt Company LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qbsdmouse.h" + +#include <QSocketNotifier> +#include <QStringList> +#include <QPoint> +#include <QGuiApplication> +#include <qpa/qwindowsysteminterface.h> + +#include <private/qcore_unix_p.h> +#include <qdebug.h> + +#include <errno.h> +#include <fcntl.h> +#include <sys/mouse.h> +#include <unistd.h> + +QT_BEGIN_NAMESPACE + +enum { + PsmLevelBasic = 0, + PsmLevelExtended = 1, + PsmLevelNative = 2 +}; + +QBsdMouseHandler::QBsdMouseHandler(const QString &key, const QString &specification) +{ + Q_UNUSED(key); + + setObjectName(QLatin1String("BSD Sysmouse Handler")); + + QByteArray device; + if (specification.startsWith("/dev/")) + device = QFile::encodeName(specification); + + if (device.isEmpty()) + device = QByteArrayLiteral("/dev/sysmouse"); + + m_devFd = QT_OPEN(device.constData(), O_RDONLY); + if (m_devFd < 0) { + qErrnoWarning(errno, "open(%s) failed", device.constData()); + return; + } + + int level = 0; + if (ioctl(m_devFd, MOUSE_GETLEVEL, &level)) { + qErrnoWarning(errno, "ioctl(%s, MOUSE_GETLEVEL) failed", device.constData()); + close(m_devFd); + m_devFd = -1; + return; + } + + switch (level) { + case PsmLevelBasic: + m_packetSize = 5; + break; + case PsmLevelExtended: + m_packetSize = 8; + break; + default: + qWarning("Unsupported mouse device operation level: %d", level); + close(m_devFd); + m_devFd = -1; + return; + } + + if (fcntl(m_devFd, F_SETFL, O_NONBLOCK)) { + qErrnoWarning(errno, "fcntl(%s, F_SETFL, O_NONBLOCK) failed", device.constData()); + close(m_devFd); + m_devFd = -1; + return; + } + + m_notifier.reset(new QSocketNotifier(m_devFd, QSocketNotifier::Read, this)); + connect(m_notifier.data(), &QSocketNotifier::activated, this, &QBsdMouseHandler::readMouseData); +} + +QBsdMouseHandler::~QBsdMouseHandler() +{ + if (m_devFd != -1) + close(m_devFd); +} + +void QBsdMouseHandler::readMouseData() +{ + if (m_devFd < 0) + return; + + if (m_packetSize == 0) + return; + + // packet format described in mouse(4) + qint8 packet[MOUSE_SYS_PACKETSIZE]; + quint8 status = 0; + while (read(m_devFd, packet, m_packetSize) == m_packetSize) { + const qint16 relx = packet[1] + packet[3]; + const qint16 rely = -(packet[2] + packet[4]); + + m_x += relx; + m_y += rely; + + status = packet[0] & MOUSE_SYS_STDBUTTONS; + } + + // clamp to screen geometry + const QRect g = QGuiApplication::primaryScreen()->virtualGeometry(); + if (m_x + m_xOffset < g.left()) + m_x = g.left() - m_xOffset; + else if (m_x + m_xOffset > g.right()) + m_x = g.right() - m_xOffset; + + if (m_y + m_yOffset < g.top()) + m_y = g.top() - m_yOffset; + else if (m_y + m_yOffset > g.bottom()) + m_y = g.bottom() - m_yOffset; + + const QPoint pos(m_x + m_xOffset, m_y + m_yOffset); + m_buttons = Qt::NoButton; + if (!(status & MOUSE_SYS_BUTTON1UP)) + m_buttons |= Qt::LeftButton; + if (!(status & MOUSE_SYS_BUTTON2UP)) + m_buttons |= Qt::MiddleButton; + if (!(status & MOUSE_SYS_BUTTON3UP)) + m_buttons |= Qt::RightButton; + + QWindowSystemInterface::handleMouseEvent(0, pos, pos, m_buttons); +} + +QT_END_NAMESPACE |