Differential D28141 Diff 82181 sensors/SensorDataModel.h

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sensors/SensorDataModel.h

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		1		/*
		2		Copyright (c) 2019 Eike Hein <hein@kde.org>
		3		Copyright (C) 2020 Arjen Hiemstra <ahiemstra@heimr.nl>
		4
		5		This library is free software; you can redistribute it and/or
		6		modify it under the terms of the GNU Library General Public
		7		License as published by the Free Software Foundation; either
		8		version 2 of the License, or (at your option) any later version.
		9
		10		This library is distributed in the hope that it will be useful,
		11		but WITHOUT ANY WARRANTY; without even the implied warranty of
		12		MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
		13		Library General Public License for more details.
		14
		15		You should have received a copy of the GNU Library General Public License
		16		along with this library; see the file COPYING.LIB. If not, write to
		17		the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
		18		Boston, MA 02110-1301, USA.
		19		*/
		20
		21		#pragma once
		22
		23		#include "sensors_export.h"
		24		#include <QAbstractTableModel>
		25		#include <QDateTime>
		26		#include <QQmlParserStatus>
		27		#include <memory>
		28
		29		namespace KSysGuard
		30		{
		31		class SensorInfo;
		32
		33		/**
		34		* A model representing a table of sensors.
		35		*
		36		* This model will expose the metadata and values of a list of sensors as a
		37		* table, using one column for each sensor. The metadata and values are
		38		* represented as different roles.
		39		*/
		40		class SENSORS_EXPORT SensorDataModel : public QAbstractTableModel, public QQmlParserStatus
		41		{
		42		Q_OBJECT
		43		Q_INTERFACES(QQmlParserStatus)
		44
		45		/**
		46		* The list of sensors to watch.
		47		*/
		48		Q_PROPERTY(QStringList sensors READ sensors WRITE setSensors NOTIFY sensorsChanged)
		49		/**
		50		* The minimum value of all sensors' minimum property.
		51		*/
		52		Q_PROPERTY(qreal minimum READ minimum NOTIFY sensorMetaDataChanged)
		53		/**
		54		* The maximum value of all sensors' maximum property.
		55		*/
		56		Q_PROPERTY(qreal maximum READ maximum NOTIFY sensorMetaDataChanged)
		57
		58		public:
		59		enum AdditionalRoles {
		60		SensorId = Qt::UserRole + 1, //< The backend path to the sensor.
		61		Name, //< The name of the sensor.
		62		ShortName, //< A shorter name for the sensor. This is equal to name if not set.
		63		Description, //< A description for the sensor.
		64		Unit, //< The unit of the sensor.
		65		Minimum, //< The minimum value this sensor can have.
		66		Maximum, //< The maximum value this sensor can have.
		67		Type, //< The QVariant::Type of the sensor.
		68		Value, //< The value of the sensor.
		69		FormattedValue, //< A formatted string of the value of the sensor.
		70		};
		71		Q_ENUM(AdditionalRoles)
		72
		73		explicit SensorDataModel(const QStringList &sensorIds = {}, QObject *parent = nullptr);
		74		virtual ~SensorDataModel();
		75
		76		QHash<int, QByteArray> roleNames() const override;
		77
		78		QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
		79		QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
		80
		81		int rowCount(const QModelIndex &parent = QModelIndex()) const override;
		82		int columnCount(const QModelIndex &parent = QModelIndex()) const override;
		83
		84		QStringList sensors() const;
		85		void setSensors(const QStringList &sensorIds);
		86		Q_SIGNAL void sensorsChanged() const;
		87		Q_SIGNAL void sensorMetaDataChanged();
		88
		89		qreal minimum() const;
		90		qreal maximum() const;
		91
		92		Q_INVOKABLE void addSensor(const QString &sensorId);
		93		Q_INVOKABLE void removeSensor(const QString &sensorId);
		94		Q_INVOKABLE int column(const QString &sensorId) const;
		95
		96		void classBegin() override;
		97		void componentComplete() override;
		98
		99		private:
		100		void onSensorAdded(const QString &sensorId);
		101		void onSensorRemoved(const QString &sensorId);
		102		void onMetaDataChanged(const QString &sensorId, const SensorInfo &info);
		103		void onValueChanged(const QString &sensorId, const QVariant &value);
		104
		105		class Private;
		106		const std::unique_ptr<Private> d;
		107		};
		108
		109		} // namespace KSysGuard