Fact.h 11.9 KB
Newer Older
1 2 3 4 5 6 7 8 9
/****************************************************************************
 *
 *   (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.
 *
 ****************************************************************************/

Don Gagne's avatar
Don Gagne committed
10 11 12 13 14 15 16 17 18 19 20 21

/// @file
///     @author Don Gagne <don@thegagnes.com>

#ifndef Fact_H
#define Fact_H

#include "FactMetaData.h"

#include <QObject>
#include <QString>
#include <QVariant>
22
#include <QDebug>
23 24 25
#include <QAbstractListModel>

class FactValueSliderListModel;
Don Gagne's avatar
Don Gagne committed
26 27 28 29 30 31 32

/// @brief A Fact is used to hold a single value within the system.
class Fact : public QObject
{
    Q_OBJECT
    
public:
Don Gagne's avatar
Don Gagne committed
33
    Fact(QObject* parent = NULL);
34
    Fact(int componentId, QString name, FactMetaData::ValueType_t type, QObject* parent = NULL);
Don Gagne's avatar
Don Gagne committed
35 36
    Fact(const Fact& other, QObject* parent = NULL);

37 38 39 40
    /// Creates a Fact using the name and type from metaData. Also calls QGCCorePlugin::adjustSettingsMetaData allowing
    /// custom builds to override the metadata.
    Fact(FactMetaData* metaData, QObject* parent = NULL);

Don Gagne's avatar
Don Gagne committed
41 42
    const Fact& operator=(const Fact& other);

43
    Q_PROPERTY(int          componentId             READ componentId                                        CONSTANT)
44 45
    Q_PROPERTY(QStringList  bitmaskStrings          READ bitmaskStrings                                     NOTIFY bitmaskStringsChanged)
    Q_PROPERTY(QVariantList bitmaskValues           READ bitmaskValues                                      NOTIFY bitmaskValuesChanged)
46
    Q_PROPERTY(int          decimalPlaces           READ decimalPlaces                                      CONSTANT)
47 48
    Q_PROPERTY(QVariant     defaultValue            READ cookedDefaultValue                                 CONSTANT)
    Q_PROPERTY(QString      defaultValueString      READ cookedDefaultValueString                           CONSTANT)
49 50
    Q_PROPERTY(bool         defaultValueAvailable   READ defaultValueAvailable                              CONSTANT)
    Q_PROPERTY(int          enumIndex               READ enumIndex              WRITE setEnumIndex          NOTIFY valueChanged)
51
    Q_PROPERTY(QStringList  enumStrings             READ enumStrings                                        NOTIFY enumsChanged)
52
    Q_PROPERTY(QString      enumStringValue         READ enumStringValue        WRITE setEnumStringValue    NOTIFY valueChanged)
53
    Q_PROPERTY(QVariantList enumValues              READ enumValues                                         NOTIFY enumsChanged)
54
    Q_PROPERTY(QString      category                READ category                                              CONSTANT)
55 56
    Q_PROPERTY(QString      group                   READ group                                              CONSTANT)
    Q_PROPERTY(QString      longDescription         READ longDescription                                    CONSTANT)
57 58
    Q_PROPERTY(QVariant     max                     READ cookedMax                                          CONSTANT)
    Q_PROPERTY(QString      maxString               READ cookedMaxString                                    CONSTANT)
59
    Q_PROPERTY(bool         maxIsDefaultForType     READ maxIsDefaultForType                                CONSTANT)
60 61
    Q_PROPERTY(QVariant     min                     READ cookedMin                                          CONSTANT)
    Q_PROPERTY(QString      minString               READ cookedMinString                                    CONSTANT)
62 63
    Q_PROPERTY(bool         minIsDefaultForType     READ minIsDefaultForType                                CONSTANT)
    Q_PROPERTY(QString      name                    READ name                                               CONSTANT)
64
    Q_PROPERTY(bool         rebootRequired          READ rebootRequired                                     CONSTANT)
65
    Q_PROPERTY(QString      shortDescription        READ shortDescription                                   CONSTANT)
66
    Q_PROPERTY(QString      units                   READ cookedUnits                                        CONSTANT)
Don Gagne's avatar
Don Gagne committed
67
    Q_PROPERTY(QVariant     value                   READ cookedValue            WRITE setCookedValue        NOTIFY valueChanged)
68
    Q_PROPERTY(QVariant     rawValue                READ rawValue               WRITE setRawValue           NOTIFY rawValueChanged)
69
    Q_PROPERTY(bool         valueEqualsDefault      READ valueEqualsDefault                                 NOTIFY valueChanged)
70 71
    Q_PROPERTY(QString      valueString             READ cookedValueString                                  NOTIFY valueChanged)
    Q_PROPERTY(QString      enumOrValueString       READ enumOrValueString                                  NOTIFY valueChanged)
72
    Q_PROPERTY(double       increment               READ cookedIncrement                                    CONSTANT)
73 74
    Q_PROPERTY(bool         typeIsString            READ typeIsString                                       CONSTANT)
    Q_PROPERTY(bool         typeIsBool              READ typeIsBool                                         CONSTANT)
75
    Q_PROPERTY(bool         hasControl              READ hasControl                                         CONSTANT)
76
    Q_PROPERTY(bool         readOnly                READ readOnly                                           CONSTANT)
77
    Q_PROPERTY(bool         writeOnly               READ writeOnly                                          CONSTANT)
78
    Q_PROPERTY(bool         volatileValue           READ volatileValue                                      CONSTANT)
79

Don Gagne's avatar
Don Gagne committed
80 81
    /// Convert and validate value
    ///     @param convertOnly true: validate type conversion only, false: validate against meta data as well
82
    Q_INVOKABLE QString validate(const QString& cookedValue, bool convertOnly);
83 84
    /// Convert and clamp value
    Q_INVOKABLE QVariant clamp(const QString& cookedValue);
85

Don Gagne's avatar
Don Gagne committed
86
    QVariant        cookedValue             (void) const;   /// Value after translation
87
    QVariant        rawValue                (void) const { return _rawValue; }  /// value prior to translation, careful
88 89
    int             componentId             (void) const;
    int             decimalPlaces           (void) const;
90 91
    QVariant        rawDefaultValue         (void) const;
    QVariant        cookedDefaultValue      (void) const;
92
    bool            defaultValueAvailable   (void) const;
93
    QString         cookedDefaultValueString(void) const;
Don Gagne's avatar
Don Gagne committed
94 95
    QStringList     bitmaskStrings          (void) const;
    QVariantList    bitmaskValues           (void) const;
96
    int             enumIndex               (void);         // This is not const, since an unknown value can modify the enum lists
97
    QStringList     enumStrings             (void) const;
98
    QString         enumStringValue         (void);         // This is not const, since an unknown value can modify the enum lists
99
    QVariantList    enumValues              (void) const;
100
    QString         category                (void) const;
101 102
    QString         group                   (void) const;
    QString         longDescription         (void) const;
103 104 105
    QVariant        rawMax                  (void) const;
    QVariant        cookedMax               (void) const;
    QString         cookedMaxString         (void) const;
106
    bool            maxIsDefaultForType     (void) const;
107 108 109
    QVariant        rawMin                  (void) const;
    QVariant        cookedMin               (void) const;
    QString         cookedMinString         (void) const;
110 111 112 113
    bool            minIsDefaultForType     (void) const;
    QString         name                    (void) const;
    QString         shortDescription        (void) const;
    FactMetaData::ValueType_t type          (void) const;
114 115 116 117
    QString         cookedUnits             (void) const;
    QString         rawUnits                (void) const;
    QString         rawValueString          (void) const;
    QString         cookedValueString       (void) const;
118
    bool            valueEqualsDefault      (void) const;
119
    bool            rebootRequired          (void) const;
120
    QString         enumOrValueString       (void);         // This is not const, since an unknown value can modify the enum lists
121
    double          rawIncrement            (void) const;
122
    double          cookedIncrement         (void) const;
123 124
    bool            typeIsString            (void) const { return type() == FactMetaData::valueTypeString; }
    bool            typeIsBool              (void) const { return type() == FactMetaData::valueTypeBool; }
125
    bool            hasControl              (void) const;
126
    bool            readOnly                (void) const;
127 128
    bool            writeOnly               (void) const;
    bool            volatileValue           (void) const;
129

130 131
    Q_INVOKABLE FactValueSliderListModel* valueSliderModel(void);

132 133 134
    /// Returns the values as a string with full 18 digit precision if float/double.
    QString rawValueStringFullPrecision(void) const;

Gus Grubba's avatar
Gus Grubba committed
135
    void setRawValue        (const QVariant& value);
Don Gagne's avatar
Don Gagne committed
136
    void setCookedValue     (const QVariant& value);
137 138
    void setEnumIndex       (int index);
    void setEnumStringValue (const QString& value);
139

Don Gagne's avatar
Don Gagne committed
140 141 142 143 144 145 146 147 148
    // The following methods allow you to defer sending of the valueChanged signals in order to implement
    // rate limited signalling for ui performance. Used by FactGroup for example.

    void setSendValueChangedSignals (bool sendValueChangedSignals);
    bool sendValueChangedSignals (void) const { return _sendValueChangedSignals; }
    bool deferredValueChangeSignal(void) const { return _deferredValueChangeSignal; }
    void clearDeferredValueChangeSignal(void) { _deferredValueChangeSignal = false; }
    void sendDeferredValueChangedSignal(void);

149
    // C++ methods
150

151
    /// Sets and sends new value to vehicle even if value is the same
Don Gagne's avatar
Don Gagne committed
152
    void forceSetRawValue(const QVariant& value);
153
    
Don Gagne's avatar
Don Gagne committed
154
    /// Sets the meta data associated with the Fact.
155 156 157
    ///     @param metaData FactMetaData for Fact
    ///     @param setDefaultFromMetaData true: set the fact value to the default specified in the meta data
    void setMetaData(FactMetaData* metaData, bool setDefaultFromMetaData = false);
Don Gagne's avatar
Don Gagne committed
158
    
159
    FactMetaData* metaData() { return _metaData; }
Gus Grubba's avatar
Gus Grubba committed
160 161

    //-- Value coming from Vehicle. This does NOT send a _containerRawValueChanged signal.
Don Gagne's avatar
Don Gagne committed
162
    void _containerSetRawValue(const QVariant& value);
163
    
Don Gagne's avatar
Don Gagne committed
164 165
    /// Generally you should not change the name of a fact. But if you know what you are doing, you can.
    void _setName(const QString& name) { _name = name; }
Don Gagne's avatar
Don Gagne committed
166

167 168 169
    /// Generally this is done during parsing. But if you know what you are doing, you can.
    void setEnumInfo(const QStringList& strings, const QVariantList& values);

Don Gagne's avatar
Don Gagne committed
170
signals:
171 172
    void bitmaskStringsChanged(void);
    void bitmaskValuesChanged(void);
173
    void enumsChanged(void);
Don Gagne's avatar
Don Gagne committed
174
    void sendValueChangedSignalsChanged(bool sendValueChangedSignals);
175

Don Gagne's avatar
Don Gagne committed
176 177 178
    /// QObject Property System signal for value property changes
    ///
    /// This signal is only meant for use by the QT property system. It should not be connected to by client code.
179
    void valueChanged(QVariant value);
180
    void rawValueChanged(QVariant value);
Don Gagne's avatar
Don Gagne committed
181
    
182 183 184
    /// Signalled when the param write ack comes back from the vehicle
    void vehicleUpdated(QVariant value);
    
Don Gagne's avatar
Don Gagne committed
185 186
    /// Signalled when property has been changed by a call to the property write accessor
    ///
Gus Grubba's avatar
Gus Grubba committed
187
    /// This signal is meant for use by Fact container implementations. Used to send changed values to vehicle.
Don Gagne's avatar
Don Gagne committed
188
    void _containerRawValueChanged(const QVariant& value);
Don Gagne's avatar
Don Gagne committed
189
    
Don Gagne's avatar
Don Gagne committed
190
protected:
191
    QString _variantToString(const QVariant& variant, int decimalPlaces) const;
Don Gagne's avatar
Don Gagne committed
192
    void _sendValueChangedSignal(QVariant value);
193

194
    QString                     _name;
195
    int                         _componentId;
196
    QVariant                    _rawValue;
197 198
    FactMetaData::ValueType_t   _type;
    FactMetaData*               _metaData;
Don Gagne's avatar
Don Gagne committed
199 200
    bool                        _sendValueChangedSignals;
    bool                        _deferredValueChangeSignal;
201
    FactValueSliderListModel*   _valueSliderModel;
Don Gagne's avatar
Don Gagne committed
202 203
};

204
#endif