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/****************************************************************************
*
* (c) 2009-2016 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
*
* QGroundControl is licensed according to the terms in the file
* COPYING.md in the root of the source code directory.
*
****************************************************************************/
/// @file
/// @author Don Gagne <don@thegagnes.com>
#ifndef FACTSYSTEM_H
#define FACTSYSTEM_H
#include "Fact.h"
#include "FactMetaData.h"
#include "QGCToolbox.h"
/// The components of the FactSystem are a Fact which holds an individual value. FactMetaData holds
/// additional meta data associated with a Fact such as description, min/max ranges and so forth.
/// The FactValidator object is a QML validator which validates input according to the FactMetaData
/// settings. Client code can then use this system to expose sets of Facts to QML code. An example
/// of this is the PX4ParameterMetaData onbject which is part of the PX4 AutoPilot plugin. It exposes
/// the firmware parameters to QML such that you can bind QML ui elements directly to parameters.
class FactSystem : public QGCTool
{
Q_OBJECT
public:
/// All access to FactSystem is through FactSystem::instance, so constructor is private
FactSystem(QGCApplication* app, QGCToolbox* toolbox);
// Override from QGCTool
virtual void setToolbox(QGCToolbox *toolbox);
typedef enum {
ParameterProvider,
} Provider_t;
static const int defaultComponentId = -1;
private:
static const char* _factSystemQmlUri; ///< URI for FactSystem QML imports
};
#endif