1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Copyright (C) 2016 Jolla Ltd, author: <gunnar.sletta@jollamobile.com> 5 ** Contact: https://www.qt.io/licensing/ 6 ** 7 ** This file is part of the plugins module of the Qt Toolkit. 8 ** 9 ** $QT_BEGIN_LICENSE:LGPL$ 10 ** Commercial License Usage 11 ** Licensees holding valid commercial Qt licenses may use this file in 12 ** accordance with the commercial license agreement provided with the 13 ** Software or, alternatively, in accordance with the terms contained in 14 ** a written agreement between you and The Qt Company. For licensing terms 15 ** and conditions see https://www.qt.io/terms-conditions. For further 16 ** information use the contact form at https://www.qt.io/contact-us. 17 ** 18 ** GNU Lesser General Public License Usage 19 ** Alternatively, this file may be used under the terms of the GNU Lesser 20 ** General Public License version 3 as published by the Free Software 21 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 22 ** packaging of this file. Please review the following information to 23 ** ensure the GNU Lesser General Public License version 3 requirements 24 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 25 ** 26 ** GNU General Public License Usage 27 ** Alternatively, this file may be used under the terms of the GNU 28 ** General Public License version 2.0 or (at your option) the GNU General 29 ** Public license version 3 or any later version approved by the KDE Free 30 ** Qt Foundation. The licenses are as published by the Free Software 31 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 32 ** included in the packaging of this file. Please review the following 33 ** information to ensure the GNU General Public License requirements will 34 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 35 ** https://www.gnu.org/licenses/gpl-3.0.html. 36 ** 37 ** $QT_END_LICENSE$ 38 ** 39 ****************************************************************************/ 40 41 #ifndef QEVDEVTOUCHHANDLER_P_H 42 #define QEVDEVTOUCHHANDLER_P_H 43 44 // 45 // W A R N I N G 46 // ------------- 47 // 48 // This file is not part of the Qt API. It exists purely as an 49 // implementation detail. This header file may change from version to 50 // version without notice, or even be removed. 51 // 52 // We mean it. 53 // 54 55 #include <QtGui/private/qtguiglobal_p.h> 56 #include <QObject> 57 #include <QString> 58 #include <QList> 59 #include <QThread> 60 #include <QtCore/private/qthread_p.h> 61 #include <qpa/qwindowsysteminterface.h> 62 #include "qevdevtouchfilter_p.h" 63 64 #if QT_CONFIG(mtdev) 65 struct mtdev; 66 #endif 67 68 QT_BEGIN_NAMESPACE 69 70 class QSocketNotifier; 71 class QEvdevTouchScreenData; 72 73 class QEvdevTouchScreenHandler : public QObject 74 { 75 Q_OBJECT 76 77 public: 78 explicit QEvdevTouchScreenHandler(const QString &device, const QString &spec = QString(), QObject *parent = nullptr); 79 ~QEvdevTouchScreenHandler(); 80 81 QTouchDevice *touchDevice() const; 82 83 bool isFiltered() const; 84 85 void readData(); 86 87 signals: 88 void touchPointsUpdated(); 89 90 private: 91 friend class QEvdevTouchScreenData; 92 friend class QEvdevTouchScreenHandlerThread; 93 94 void registerTouchDevice(); 95 void unregisterTouchDevice(); 96 97 QSocketNotifier *m_notify; 98 int m_fd; 99 QEvdevTouchScreenData *d; 100 QTouchDevice *m_device; 101 #if QT_CONFIG(mtdev) 102 mtdev *m_mtdev; 103 #endif 104 }; 105 106 class QEvdevTouchScreenHandlerThread : public QDaemonThread 107 { 108 Q_OBJECT 109 public: 110 explicit QEvdevTouchScreenHandlerThread(const QString &device, const QString &spec, QObject *parent = nullptr); 111 ~QEvdevTouchScreenHandlerThread(); 112 void run() override; 113 114 bool isTouchDeviceRegistered() const; 115 116 bool eventFilter(QObject *object, QEvent *event) override; 117 118 void scheduleTouchPointUpdate(); 119 120 signals: 121 void touchDeviceRegistered(); 122 123 private: 124 Q_INVOKABLE void notifyTouchDeviceRegistered(); 125 126 void filterAndSendTouchPoints(); 127 QRect targetScreenGeometry() const; 128 129 QString m_device; 130 QString m_spec; 131 QEvdevTouchScreenHandler *m_handler; 132 bool m_touchDeviceRegistered; 133 134 bool m_touchUpdatePending; 135 QWindow *m_filterWindow; 136 137 struct FilteredTouchPoint { 138 QEvdevTouchFilter x; 139 QEvdevTouchFilter y; 140 QWindowSystemInterface::TouchPoint touchPoint; 141 }; 142 QHash<int, FilteredTouchPoint> m_filteredPoints; 143 144 float m_touchRate; 145 }; 146 147 QT_END_NAMESPACE 148 149 #endif // QEVDEVTOUCH_P_H 150