SimpleMissionItem.cc 37.9 KB
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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.
 *
 ****************************************************************************/
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#include <QStringList>
#include <QDebug>

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#include "SimpleMissionItem.h"
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#include "FirmwarePluginManager.h"
#include "QGCApplication.h"
#include "JsonHelper.h"
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#include "MissionCommandTree.h"
#include "MissionCommandUIInfo.h"
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#include "QGroundControlQmlGlobal.h"
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#include "SettingsManager.h"
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FactMetaData* SimpleMissionItem::_altitudeMetaData =        NULL;
FactMetaData* SimpleMissionItem::_commandMetaData =         NULL;
FactMetaData* SimpleMissionItem::_defaultParamMetaData =    NULL;
FactMetaData* SimpleMissionItem::_frameMetaData =           NULL;
FactMetaData* SimpleMissionItem::_latitudeMetaData =        NULL;
FactMetaData* SimpleMissionItem::_longitudeMetaData =       NULL;
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const char* SimpleMissionItem::_jsonAltitudeModeKey =           "AltitudeMode";
const char* SimpleMissionItem::_jsonAltitudeKey =               "Altitude";
const char* SimpleMissionItem::_jsonAMSLAltAboveTerrainKey =    "AMSLAltAboveTerrain";

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struct EnumInfo_s {
    const char *    label;
    MAV_FRAME       frame;
};

static const struct EnumInfo_s _rgMavFrameInfo[] = {
{ "MAV_FRAME_GLOBAL",                   MAV_FRAME_GLOBAL },
{ "MAV_FRAME_LOCAL_NED",                MAV_FRAME_LOCAL_NED },
{ "MAV_FRAME_MISSION",                  MAV_FRAME_MISSION },
{ "MAV_FRAME_GLOBAL_RELATIVE_ALT",      MAV_FRAME_GLOBAL_RELATIVE_ALT },
{ "MAV_FRAME_LOCAL_ENU",                MAV_FRAME_LOCAL_ENU },
{ "MAV_FRAME_GLOBAL_INT",               MAV_FRAME_GLOBAL_INT },
{ "MAV_FRAME_GLOBAL_RELATIVE_ALT_INT",  MAV_FRAME_GLOBAL_RELATIVE_ALT_INT },
{ "MAV_FRAME_LOCAL_OFFSET_NED",         MAV_FRAME_LOCAL_OFFSET_NED },
{ "MAV_FRAME_BODY_NED",                 MAV_FRAME_BODY_NED },
{ "MAV_FRAME_BODY_OFFSET_NED",          MAV_FRAME_BODY_OFFSET_NED },
{ "MAV_FRAME_GLOBAL_TERRAIN_ALT",       MAV_FRAME_GLOBAL_TERRAIN_ALT },
{ "MAV_FRAME_GLOBAL_TERRAIN_ALT_INT",   MAV_FRAME_GLOBAL_TERRAIN_ALT_INT },
};
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SimpleMissionItem::SimpleMissionItem(Vehicle* vehicle, bool flyView, QObject* parent)
    : VisualMissionItem                 (vehicle, flyView, parent)
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    , _rawEdit                          (false)
    , _dirty                            (false)
    , _ignoreDirtyChangeSignals         (false)
    , _speedSection                     (NULL)
    , _cameraSection                    (NULL)
    , _commandTree                      (qgcApp()->toolbox()->missionCommandTree())
    , _supportedCommandFact             (0, "Command:",             FactMetaData::valueTypeUint32)
    , _altitudeMode                     (AltitudeRelative)
    , _altitudeFact                     (0, "Altitude",             FactMetaData::valueTypeDouble)
    , _amslAltAboveTerrainFact          (0, "Alt above terrain",    FactMetaData::valueTypeDouble)
    , _param1MetaData                   (FactMetaData::valueTypeDouble)
    , _param2MetaData                   (FactMetaData::valueTypeDouble)
    , _param3MetaData                   (FactMetaData::valueTypeDouble)
    , _param4MetaData                   (FactMetaData::valueTypeDouble)
    , _param5MetaData                   (FactMetaData::valueTypeDouble)
    , _param6MetaData                   (FactMetaData::valueTypeDouble)
    , _param7MetaData                   (FactMetaData::valueTypeDouble)
    , _syncingHeadingDegreesAndParam4   (false)
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{
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    _editorQml = QStringLiteral("qrc:/qml/SimpleItemEditor.qml");
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    _setupMetaData();
    _connectSignals();
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    _updateOptionalSections();
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    setDefaultsForCommand();
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    _rebuildFacts();
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    setDirty(false);
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}

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SimpleMissionItem::SimpleMissionItem(Vehicle* vehicle, bool flyView, const MissionItem& missionItem, QObject* parent)
    : VisualMissionItem         (vehicle, flyView, parent)
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    , _missionItem              (missionItem)
    , _rawEdit                  (false)
    , _dirty                    (false)
    , _ignoreDirtyChangeSignals (false)
    , _speedSection             (NULL)
    , _cameraSection            (NULL)
    , _commandTree              (qgcApp()->toolbox()->missionCommandTree())
    , _supportedCommandFact     (0,         "Command:",             FactMetaData::valueTypeUint32)
    , _altitudeFact             (0,         "Altitude",             FactMetaData::valueTypeDouble)
    , _amslAltAboveTerrainFact  (0,         "Alt above terrain",    FactMetaData::valueTypeDouble)
    , _param1MetaData           (FactMetaData::valueTypeDouble)
    , _param2MetaData           (FactMetaData::valueTypeDouble)
    , _param3MetaData           (FactMetaData::valueTypeDouble)
    , _param4MetaData           (FactMetaData::valueTypeDouble)
    , _param5MetaData           (FactMetaData::valueTypeDouble)
    , _param6MetaData           (FactMetaData::valueTypeDouble)
    , _param7MetaData           (FactMetaData::valueTypeDouble)
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    , _syncingHeadingDegreesAndParam4           (false)
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{
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    _editorQml = QStringLiteral("qrc:/qml/SimpleItemEditor.qml");

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    struct MavFrame2AltMode_s {
        MAV_FRAME       mavFrame;
        AltitudeMode    altMode;
    };

    const struct MavFrame2AltMode_s rgMavFrame2AltMode[] = {
        { MAV_FRAME_GLOBAL_TERRAIN_ALT,     AltitudeTerrainFrame },
        { MAV_FRAME_GLOBAL,                 AltitudeAbsolute },
        { MAV_FRAME_GLOBAL_RELATIVE_ALT,    AltitudeRelative },
    };
    _altitudeMode = AltitudeRelative;
    for (size_t i=0; i<sizeof(rgMavFrame2AltMode)/sizeof(rgMavFrame2AltMode[0]); i++) {
        const MavFrame2AltMode_s& pMavFrame2AltMode = rgMavFrame2AltMode[i];
        if (pMavFrame2AltMode.mavFrame == missionItem.frame()) {
            _altitudeMode = pMavFrame2AltMode.altMode;
            break;
        }
    }

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    _isCurrentItem = missionItem.isCurrentItem();
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    _altitudeFact.setRawValue(specifiesCoordinate() ? _missionItem._param7Fact.rawValue() : qQNaN());
    _amslAltAboveTerrainFact.setRawValue(qQNaN());
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    // In flyView we skip some of the intialization to save memory
    if (!_flyView) {
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        _setupMetaData();
    }
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    _connectSignals();
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    _updateOptionalSections();
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    if (!_flyView) {
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        _rebuildFacts();
    }
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    // Signal coordinate changed to kick off terrain query
    emit coordinateChanged(coordinate());
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    setDirty(false);
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}

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SimpleMissionItem::SimpleMissionItem(const SimpleMissionItem& other, bool flyView, QObject* parent)
    : VisualMissionItem         (other, flyView, parent)
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    , _missionItem              (other._vehicle)
    , _rawEdit                  (false)
    , _dirty                    (false)
    , _ignoreDirtyChangeSignals (false)
    , _speedSection             (NULL)
    , _cameraSection            (NULL)
    , _commandTree              (qgcApp()->toolbox()->missionCommandTree())
    , _supportedCommandFact     (0,         "Command:",             FactMetaData::valueTypeUint32)
    , _altitudeMode             (other._altitudeMode)
    , _altitudeFact             (0,         "Altitude",             FactMetaData::valueTypeDouble)
    , _amslAltAboveTerrainFact  (qQNaN(),   "Alt above terrain",    FactMetaData::valueTypeDouble)
    , _param1MetaData           (FactMetaData::valueTypeDouble)
    , _param2MetaData           (FactMetaData::valueTypeDouble)
    , _param3MetaData           (FactMetaData::valueTypeDouble)
    , _param4MetaData           (FactMetaData::valueTypeDouble)
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    , _syncingHeadingDegreesAndParam4           (false)
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{
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    _editorQml = QStringLiteral("qrc:/qml/SimpleItemEditor.qml");

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    _altitudeFact.setRawValue(other._altitudeFact.rawValue());
    _amslAltAboveTerrainFact.setRawValue(other._amslAltAboveTerrainFact.rawValue());

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    _setupMetaData();
    _connectSignals();
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    _updateOptionalSections();
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    _rebuildFacts();
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    setDirty(false);
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}

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void SimpleMissionItem::_connectSignals(void)
{
    // Connect to change signals to track dirty state
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    connect(&_missionItem._param1Fact,  &Fact::valueChanged,                    this, &SimpleMissionItem::_setDirty);
    connect(&_missionItem._param2Fact,  &Fact::valueChanged,                    this, &SimpleMissionItem::_setDirty);
    connect(&_missionItem._param3Fact,  &Fact::valueChanged,                    this, &SimpleMissionItem::_setDirty);
    connect(&_missionItem._param4Fact,  &Fact::valueChanged,                    this, &SimpleMissionItem::_setDirty);
    connect(&_missionItem._param5Fact,  &Fact::valueChanged,                    this, &SimpleMissionItem::_setDirty);
    connect(&_missionItem._param6Fact,  &Fact::valueChanged,                    this, &SimpleMissionItem::_setDirty);
    connect(&_missionItem._param7Fact,  &Fact::valueChanged,                    this, &SimpleMissionItem::_setDirty);
    connect(&_missionItem._frameFact,   &Fact::valueChanged,                    this, &SimpleMissionItem::_setDirty);
    connect(&_missionItem._commandFact, &Fact::valueChanged,                    this, &SimpleMissionItem::_setDirty);
    connect(&_missionItem,              &MissionItem::sequenceNumberChanged,    this, &SimpleMissionItem::_setDirty);
    connect(this,                       &SimpleMissionItem::altitudeModeChanged,this, &SimpleMissionItem::_setDirty);

    connect(&_altitudeFact,             &Fact::valueChanged,                    this, &SimpleMissionItem::_altitudeChanged);
    connect(this,                       &SimpleMissionItem::altitudeModeChanged,this, &SimpleMissionItem::_altitudeModeChanged);
    connect(this,                       &SimpleMissionItem::terrainAltitudeChanged,this, &SimpleMissionItem::_terrainAltChanged);
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    connect(this, &SimpleMissionItem::sequenceNumberChanged,        this, &SimpleMissionItem::lastSequenceNumberChanged);
    connect(this, &SimpleMissionItem::cameraSectionChanged,         this, &SimpleMissionItem::_setDirty);
    connect(this, &SimpleMissionItem::cameraSectionChanged,         this, &SimpleMissionItem::_updateLastSequenceNumber);

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    // These are coordinate parameters, they must emit coordinateChanged signal
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    connect(&_missionItem._param5Fact,  &Fact::valueChanged, this, &SimpleMissionItem::_sendCoordinateChanged);
    connect(&_missionItem._param6Fact,  &Fact::valueChanged, this, &SimpleMissionItem::_sendCoordinateChanged);
    connect(&_missionItem._param7Fact,  &Fact::valueChanged, this, &SimpleMissionItem::_sendCoordinateChanged);
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    // The following changes may also change friendlyEditAllowed
    connect(&_missionItem._autoContinueFact,    &Fact::valueChanged, this, &SimpleMissionItem::_sendFriendlyEditAllowedChanged);
    connect(&_missionItem._commandFact,         &Fact::valueChanged, this, &SimpleMissionItem::_sendFriendlyEditAllowedChanged);
    connect(&_missionItem._frameFact,           &Fact::valueChanged, this, &SimpleMissionItem::_sendFriendlyEditAllowedChanged);

    // A command change triggers a number of other changes as well.
    connect(&_missionItem._commandFact, &Fact::valueChanged, this, &SimpleMissionItem::setDefaultsForCommand);
    connect(&_missionItem._commandFact, &Fact::valueChanged, this, &SimpleMissionItem::commandNameChanged);
    connect(&_missionItem._commandFact, &Fact::valueChanged, this, &SimpleMissionItem::commandDescriptionChanged);
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    connect(&_missionItem._commandFact, &Fact::valueChanged, this, &SimpleMissionItem::abbreviationChanged);
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    connect(&_missionItem._commandFact, &Fact::valueChanged, this, &SimpleMissionItem::specifiesCoordinateChanged);
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    connect(&_missionItem._commandFact, &Fact::valueChanged, this, &SimpleMissionItem::specifiesAltitudeOnlyChanged);
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    connect(&_missionItem._commandFact, &Fact::valueChanged, this, &SimpleMissionItem::isStandaloneCoordinateChanged);

    // Whenever these properties change the ui model changes as well
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    connect(this, &SimpleMissionItem::commandChanged,       this, &SimpleMissionItem::_rebuildFacts);
    connect(this, &SimpleMissionItem::rawEditChanged,       this, &SimpleMissionItem::_rebuildFacts);
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    // These fact signals must alway signal out through SimpleMissionItem signals
    connect(&_missionItem._commandFact,     &Fact::valueChanged, this, &SimpleMissionItem::_sendCommandChanged);
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    // Propogate signals from MissionItem up to SimpleMissionItem
    connect(&_missionItem, &MissionItem::sequenceNumberChanged,         this, &SimpleMissionItem::sequenceNumberChanged);
    connect(&_missionItem, &MissionItem::specifiedFlightSpeedChanged,   this, &SimpleMissionItem::specifiedFlightSpeedChanged);

    // Firmware type change can affect supportsTerrainFrame
    connect(_vehicle, &Vehicle::firmwareTypeChanged, this, &SimpleMissionItem::supportsTerrainFrameChanged);
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}

void SimpleMissionItem::_setupMetaData(void)
{
    QStringList enumStrings;
    QVariantList enumValues;

    if (!_altitudeMetaData) {
        _altitudeMetaData = new FactMetaData(FactMetaData::valueTypeDouble);
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        _altitudeMetaData->setRawUnits("m");
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        _altitudeMetaData->setRawIncrement(1);
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        _altitudeMetaData->setDecimalPlaces(2);

        enumStrings.clear();
        enumValues.clear();
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        MissionCommandTree* commandTree = qgcApp()->toolbox()->missionCommandTree();
        foreach (const MAV_CMD command, commandTree->allCommandIds()) {
            enumStrings.append(commandTree->rawName(command));
            enumValues.append(QVariant((int)command));
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        }
        _commandMetaData = new FactMetaData(FactMetaData::valueTypeUint32);
        _commandMetaData->setEnumInfo(enumStrings, enumValues);

        _defaultParamMetaData = new FactMetaData(FactMetaData::valueTypeDouble);
        _defaultParamMetaData->setDecimalPlaces(7);

        enumStrings.clear();
        enumValues.clear();
        for (size_t i=0; i<sizeof(_rgMavFrameInfo)/sizeof(_rgMavFrameInfo[0]); i++) {
            const struct EnumInfo_s* mavFrameInfo = &_rgMavFrameInfo[i];

            enumStrings.append(mavFrameInfo->label);
            enumValues.append(QVariant(mavFrameInfo->frame));
        }
        _frameMetaData = new FactMetaData(FactMetaData::valueTypeUint32);
        _frameMetaData->setEnumInfo(enumStrings, enumValues);

        _latitudeMetaData = new FactMetaData(FactMetaData::valueTypeDouble);
        _latitudeMetaData->setRawUnits("deg");
        _latitudeMetaData->setDecimalPlaces(7);

        _longitudeMetaData = new FactMetaData(FactMetaData::valueTypeDouble);
        _longitudeMetaData->setRawUnits("deg");
        _longitudeMetaData->setDecimalPlaces(7);

    }

    _missionItem._commandFact.setMetaData(_commandMetaData);
    _missionItem._frameFact.setMetaData(_frameMetaData);
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    _altitudeFact.setMetaData(_altitudeMetaData);
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    _amslAltAboveTerrainFact.setMetaData(_altitudeMetaData);
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}

SimpleMissionItem::~SimpleMissionItem()
{    
}

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void SimpleMissionItem::save(QJsonArray&  missionItems)
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{
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    QList<MissionItem*> items;

    appendMissionItems(items, this);

    for (int i=0; i<items.count(); i++) {
        MissionItem* item = items[i];
        QJsonObject saveObject;
        item->save(saveObject);
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        if (i == 0) {
            // This is the main simple item, save the alt/terrain data
            if (specifiesCoordinate()) {
                saveObject[_jsonAltitudeModeKey] =          _altitudeMode;
                saveObject[_jsonAltitudeKey] =              _altitudeFact.rawValue().toDouble();
                saveObject[_jsonAMSLAltAboveTerrainKey] =   _amslAltAboveTerrainFact.rawValue().toDouble();
            }
        }
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        missionItems.append(saveObject);
        item->deleteLater();
    }
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}

bool SimpleMissionItem::load(QTextStream &loadStream)
{
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    bool success;
    if ((success = _missionItem.load(loadStream))) {
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        if (specifiesCoordinate()) {
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            _altitudeMode = _missionItem.relativeAltitude() ? AltitudeRelative : AltitudeAbsolute;
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            _altitudeFact.setRawValue(_missionItem._param7Fact.rawValue());
            _amslAltAboveTerrainFact.setRawValue(qQNaN());
        }
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        _updateOptionalSections();
    }
    return success;
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}

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bool SimpleMissionItem::load(const QJsonObject& json, int sequenceNumber, QString& errorString)
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{
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    if (!_missionItem.load(json, sequenceNumber, errorString)) {
        return false;
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    }
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    if (specifiesCoordinate()) {
        if (json.contains(_jsonAltitudeModeKey) || json.contains(_jsonAltitudeKey) || json.contains(_jsonAMSLAltAboveTerrainKey)) {
            QList<JsonHelper::KeyValidateInfo> keyInfoList = {
                { _jsonAltitudeModeKey,         QJsonValue::Double, true },
                { _jsonAltitudeKey,             QJsonValue::Double, true },
                { _jsonAMSLAltAboveTerrainKey,  QJsonValue::Double, true },
            };
            if (!JsonHelper::validateKeys(json, keyInfoList, errorString)) {
                return false;
            }

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            _altitudeMode = (AltitudeMode)(int)json[_jsonAltitudeModeKey].toDouble();
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            _altitudeFact.setRawValue(JsonHelper::possibleNaNJsonValue(json[_jsonAltitudeKey]));
            _amslAltAboveTerrainFact.setRawValue(JsonHelper::possibleNaNJsonValue(json[_jsonAltitudeKey]));
        } else {
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            _altitudeMode = _missionItem.relativeAltitude() ? AltitudeRelative : AltitudeAbsolute;
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            _altitudeFact.setRawValue(_missionItem._param7Fact.rawValue());
            _amslAltAboveTerrainFact.setRawValue(qQNaN());
        }
    }

    _updateOptionalSections();

    return true;
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}

bool SimpleMissionItem::isStandaloneCoordinate(void) const
{
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    const MissionCommandUIInfo* uiInfo = _commandTree->getUIInfo(_vehicle, (MAV_CMD)command());
    if (uiInfo) {
        return uiInfo->isStandaloneCoordinate();
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    } else {
        return false;
    }
}

bool SimpleMissionItem::specifiesCoordinate(void) const
{
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    const MissionCommandUIInfo* uiInfo = _commandTree->getUIInfo(_vehicle, (MAV_CMD)command());
    if (uiInfo) {
        return uiInfo->specifiesCoordinate();
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    } else {
        return false;
    }
}

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bool SimpleMissionItem::specifiesAltitudeOnly(void) const
{
    const MissionCommandUIInfo* uiInfo = _commandTree->getUIInfo(_vehicle, (MAV_CMD)command());
    if (uiInfo) {
        return uiInfo->specifiesAltitudeOnly();
    } else {
        return false;
    }
}

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QString SimpleMissionItem::commandDescription(void) const
{
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    const MissionCommandUIInfo* uiInfo = _commandTree->getUIInfo(_vehicle, (MAV_CMD)command());
    if (uiInfo) {
        return uiInfo->description();
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    } else {
        qWarning() << "Should not ask for command description on unknown command";
        return commandName();
    }
}

QString SimpleMissionItem::commandName(void) const
{
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    const MissionCommandUIInfo* uiInfo = _commandTree->getUIInfo(_vehicle, (MAV_CMD)command());
    if (uiInfo) {
        return uiInfo->friendlyName();
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    } else {
        qWarning() << "Request for command name on unknown command";
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        return tr("Unknown: %1").arg(command());
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    }
}

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QString SimpleMissionItem::abbreviation() const
{
    if (homePosition())
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        return tr("H");
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    switch(command()) {
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    case MAV_CMD_NAV_TAKEOFF:
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        return tr("Takeoff");
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    case MAV_CMD_NAV_LAND:
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        return tr("Land");
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    case MAV_CMD_NAV_VTOL_TAKEOFF:
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        return tr("VTOL Takeoff");
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    case MAV_CMD_NAV_VTOL_LAND:
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        return tr("VTOL Land");
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    case MAV_CMD_DO_SET_ROI:
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        return tr("ROI");
    default:
        return QString();
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    }
}

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void SimpleMissionItem::_rebuildTextFieldFacts(void)
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{
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    _textFieldFacts.clear();
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    if (rawEdit()) {
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        _missionItem._param1Fact._setName("Param1");
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        _missionItem._param1Fact.setMetaData(_defaultParamMetaData);
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        _textFieldFacts.append(&_missionItem._param1Fact);
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        _missionItem._param2Fact._setName("Param2");
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        _missionItem._param2Fact.setMetaData(_defaultParamMetaData);
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        _textFieldFacts.append(&_missionItem._param2Fact);
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        _missionItem._param3Fact._setName("Param3");
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        _missionItem._param3Fact.setMetaData(_defaultParamMetaData);
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        _textFieldFacts.append(&_missionItem._param3Fact);
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        _missionItem._param4Fact._setName("Param4");
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        _missionItem._param4Fact.setMetaData(_defaultParamMetaData);
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        _textFieldFacts.append(&_missionItem._param4Fact);
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        _missionItem._param5Fact._setName("Lat/X");
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        _missionItem._param5Fact.setMetaData(_defaultParamMetaData);
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        _textFieldFacts.append(&_missionItem._param5Fact);
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        _missionItem._param6Fact._setName("Lon/Y");
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        _missionItem._param6Fact.setMetaData(_defaultParamMetaData);
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        _textFieldFacts.append(&_missionItem._param6Fact);
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        _missionItem._param7Fact._setName("Alt/Z");
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        _missionItem._param7Fact.setMetaData(_defaultParamMetaData);
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        _textFieldFacts.append(&_missionItem._param7Fact);
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    } else {
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        _ignoreDirtyChangeSignals = true;

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        MAV_CMD command;
        if (_homePositionSpecialCase) {
            command = MAV_CMD_NAV_LAST;
        } else {
            command = _missionItem.command();
        }

        Fact*           rgParamFacts[7] =       { &_missionItem._param1Fact, &_missionItem._param2Fact, &_missionItem._param3Fact, &_missionItem._param4Fact, &_missionItem._param5Fact, &_missionItem._param6Fact, &_missionItem._param7Fact };
        FactMetaData*   rgParamMetaData[7] =    { &_param1MetaData, &_param2MetaData, &_param3MetaData, &_param4MetaData, &_param5MetaData, &_param6MetaData, &_param7MetaData };

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        const MissionCommandUIInfo* uiInfo = _commandTree->getUIInfo(_vehicle, command);

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        for (int i=1; i<=7; i++) {
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            bool showUI;
            const MissionCmdParamInfo* paramInfo = uiInfo->getParamInfo(i, showUI);
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            if (showUI && paramInfo && paramInfo->enumStrings().count() == 0 && !paramInfo->nanUnchanged()) {
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                Fact*               paramFact =     rgParamFacts[i-1];
                FactMetaData*       paramMetaData = rgParamMetaData[i-1];

                paramFact->_setName(paramInfo->label());
                paramMetaData->setDecimalPlaces(paramInfo->decimalPlaces());
                paramMetaData->setRawUnits(paramInfo->units());
                paramFact->setMetaData(paramMetaData);
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                _textFieldFacts.append(paramFact);
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            }
        }

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        _ignoreDirtyChangeSignals = false;
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    }
}

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void SimpleMissionItem::_rebuildNaNFacts(void)
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{
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    _nanFacts.clear();

    if (!rawEdit()) {
        _ignoreDirtyChangeSignals = true;

        MAV_CMD command;
        if (_homePositionSpecialCase) {
            command = MAV_CMD_NAV_LAST;
        } else {
            command = _missionItem.command();
        }

        Fact*           rgParamFacts[7] =       { &_missionItem._param1Fact, &_missionItem._param2Fact, &_missionItem._param3Fact, &_missionItem._param4Fact, &_missionItem._param5Fact, &_missionItem._param6Fact, &_missionItem._param7Fact };
        FactMetaData*   rgParamMetaData[7] =    { &_param1MetaData, &_param2MetaData, &_param3MetaData, &_param4MetaData, &_param5MetaData, &_param6MetaData, &_param7MetaData };

        const MissionCommandUIInfo* uiInfo = _commandTree->getUIInfo(_vehicle, command);

        for (int i=1; i<=7; i++) {
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            bool showUI;
            const MissionCmdParamInfo* paramInfo = uiInfo->getParamInfo(i, showUI);
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            if (showUI && paramInfo && paramInfo->nanUnchanged()) {
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                // Show hide Heading field on waypoint based on vehicle yaw to next waypoint setting. This needs to come from the actual vehicle if it exists
                // and not _vehicle which is always offline.
                Vehicle* firmwareVehicle = qgcApp()->toolbox()->multiVehicleManager()->activeVehicle();
                if (!firmwareVehicle) {
                    firmwareVehicle = _vehicle;
                }
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                bool hideWaypointHeading = (command == MAV_CMD_NAV_WAYPOINT || command == MAV_CMD_NAV_TAKEOFF) && (i == 4) && firmwareVehicle->firmwarePlugin()->vehicleYawsToNextWaypointInMission(firmwareVehicle);
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                if (hideWaypointHeading) {
                    continue;
                }
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                Fact*               paramFact =     rgParamFacts[i-1];
                FactMetaData*       paramMetaData = rgParamMetaData[i-1];

                paramFact->_setName(paramInfo->label());
                paramMetaData->setDecimalPlaces(paramInfo->decimalPlaces());
                paramMetaData->setRawUnits(paramInfo->units());
                paramFact->setMetaData(paramMetaData);
                _nanFacts.append(paramFact);
            }
        }

        _ignoreDirtyChangeSignals = false;
    }
}

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bool SimpleMissionItem::specifiesAltitude(void) const
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{
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    return specifiesCoordinate() || specifiesAltitudeOnly();
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}

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void SimpleMissionItem::_rebuildComboBoxFacts(void)
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{
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    _comboboxFacts.clear();
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    if (rawEdit()) {
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        _comboboxFacts.append(&_missionItem._commandFact);
        _comboboxFacts.append(&_missionItem._frameFact);
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    } else {
        Fact*           rgParamFacts[7] =       { &_missionItem._param1Fact, &_missionItem._param2Fact, &_missionItem._param3Fact, &_missionItem._param4Fact, &_missionItem._param5Fact, &_missionItem._param6Fact, &_missionItem._param7Fact };
        FactMetaData*   rgParamMetaData[7] =    { &_param1MetaData, &_param2MetaData, &_param3MetaData, &_param4MetaData, &_param5MetaData, &_param6MetaData, &_param7MetaData };

        MAV_CMD command;
        if (_homePositionSpecialCase) {
            command = MAV_CMD_NAV_LAST;
        } else {
            command = (MAV_CMD)this->command();
        }

        for (int i=1; i<=7; i++) {
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            bool showUI;
            const MissionCmdParamInfo* paramInfo = _commandTree->getUIInfo(_vehicle, command)->getParamInfo(i, showUI);
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            if (showUI && paramInfo && paramInfo->enumStrings().count() != 0) {
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                Fact*               paramFact =     rgParamFacts[i-1];
                FactMetaData*       paramMetaData = rgParamMetaData[i-1];

                paramFact->_setName(paramInfo->label());
                paramMetaData->setDecimalPlaces(paramInfo->decimalPlaces());
                paramMetaData->setEnumInfo(paramInfo->enumStrings(), paramInfo->enumValues());
                paramMetaData->setRawUnits(paramInfo->units());
                paramFact->setMetaData(paramMetaData);
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                _comboboxFacts.append(paramFact);
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            }
        }
    }
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}
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void SimpleMissionItem::_rebuildFacts(void)
{
    _rebuildTextFieldFacts();
    _rebuildNaNFacts();
    _rebuildComboBoxFacts();
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}

bool SimpleMissionItem::friendlyEditAllowed(void) const
{
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    const MissionCommandUIInfo* uiInfo = _commandTree->getUIInfo(_vehicle, (MAV_CMD)command());
    if (uiInfo && uiInfo->friendlyEdit()) {
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        if (!_missionItem.autoContinue()) {
            return false;
        }

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        if (specifiesCoordinate() || specifiesAltitudeOnly()) {
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            MAV_FRAME frame = _missionItem.frame();
            switch (frame) {
            case MAV_FRAME_GLOBAL:
            case MAV_FRAME_GLOBAL_RELATIVE_ALT:
                return true;
                break;

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            case MAV_FRAME_GLOBAL_TERRAIN_ALT:
                return supportsTerrainFrame();
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            default:
                return false;
            }
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        }

        return true;
    }

    return false;
}

bool SimpleMissionItem::rawEdit(void) const
{
    return _rawEdit || !friendlyEditAllowed();
}

void SimpleMissionItem::setRawEdit(bool rawEdit)
{
    if (this->rawEdit() != rawEdit) {
        _rawEdit = rawEdit;
        emit rawEditChanged(this->rawEdit());
    }
}

void SimpleMissionItem::setDirty(bool dirty)
{
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    if (!_homePositionSpecialCase || (_dirty != dirty)) {
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        _dirty = dirty;
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        if (!dirty) {
            _cameraSection->setDirty(false);
            _speedSection->setDirty(false);
        }
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        emit dirtyChanged(dirty);
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    }
}

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void SimpleMissionItem::_setDirty(void)
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{
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    if (!_ignoreDirtyChangeSignals) {
        setDirty(true);
    }
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}

void SimpleMissionItem::_sendCoordinateChanged(void)
{
    emit coordinateChanged(coordinate());
}

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void SimpleMissionItem::_altitudeModeChanged(void)
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{
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    switch (_altitudeMode) {
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    case AltitudeTerrainFrame:
        _missionItem.setFrame(MAV_FRAME_GLOBAL_TERRAIN_ALT);
        break;
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    case AltitudeAboveTerrain:
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        // Terrain altitudes are Absolute
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        _missionItem.setFrame(MAV_FRAME_GLOBAL);
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        // Clear any old calculated values
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        _missionItem._param7Fact.setRawValue(qQNaN());
        _amslAltAboveTerrainFact.setRawValue(qQNaN());
        break;
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    case AltitudeAbsolute:
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        _missionItem.setFrame(MAV_FRAME_GLOBAL);
        break;
    case AltitudeRelative:
        _missionItem.setFrame(MAV_FRAME_GLOBAL_RELATIVE_ALT);
        break;
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    }
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    // We always call _altitudeChanged to make sure that param7 is always setup correctly on mode change
    _altitudeChanged();

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    emit coordinateHasRelativeAltitudeChanged(_altitudeMode == AltitudeRelative);
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}

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void SimpleMissionItem::_altitudeChanged(void)
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{
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    if (!specifiesAltitude()) {
        return;
    }

    if (_altitudeMode == AltitudeAboveTerrain) {
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        _amslAltAboveTerrainFact.setRawValue(qQNaN());
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        _terrainAltChanged();
    } else {
        _missionItem._param7Fact.setRawValue(_altitudeFact.rawValue());
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    }
}

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void SimpleMissionItem::_terrainAltChanged(void)
{
    if (!specifiesAltitude() || _altitudeMode != AltitudeAboveTerrain) {
        // We don't need terrain data
        return;
    }

    if (qIsNaN(terrainAltitude())) {
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        qDebug() << "1";
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        // Set NaNs to signal we are waiting on terrain data
        _missionItem._param7Fact.setRawValue(qQNaN());
        _amslAltAboveTerrainFact.setRawValue(qQNaN());
    } else {
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        double newAboveTerrain = terrainAltitude() + _altitudeFact.rawValue().toDouble();
        double oldAboveTerrain = _amslAltAboveTerrainFact.rawValue().toDouble();
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        qDebug() << "2" << newAboveTerrain << oldAboveTerrain;
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        if (qIsNaN(oldAboveTerrain) || !qFuzzyCompare(newAboveTerrain, oldAboveTerrain)) {
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            qDebug() << "3";
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            _missionItem._param7Fact.setRawValue(newAboveTerrain);
            _amslAltAboveTerrainFact.setRawValue(newAboveTerrain);
        }
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    }
}

bool SimpleMissionItem::readyForSave(void) const
{
    return !specifiesAltitude() || !qIsNaN(_missionItem._param7Fact.rawValue().toDouble());
}

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void SimpleMissionItem::setDefaultsForCommand(void)
{
    // We set these global defaults first, then if there are param defaults they will get reset
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    _altitudeMode = AltitudeRelative;
    double defaultAlt = qgcApp()->toolbox()->settingsManager()->appSettings()->defaultMissionItemAltitude()->rawValue().toDouble();
    _altitudeFact.setRawValue(defaultAlt);
    _missionItem._param7Fact.setRawValue(defaultAlt);
    _amslAltAboveTerrainFact.setRawValue(qQNaN());
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    MAV_CMD command = (MAV_CMD)this->command();
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    const MissionCommandUIInfo* uiInfo = _commandTree->getUIInfo(_vehicle, command);
    if (uiInfo) {
        for (int i=1; i<=7; i++) {
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            bool showUI;
            const MissionCmdParamInfo* paramInfo = uiInfo->getParamInfo(i, showUI);
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            if (paramInfo) {
                Fact* rgParamFacts[7] = { &_missionItem._param1Fact, &_missionItem._param2Fact, &_missionItem._param3Fact, &_missionItem._param4Fact, &_missionItem._param5Fact, &_missionItem._param6Fact, &_missionItem._param7Fact };
                rgParamFacts[paramInfo->param()-1]->setRawValue(paramInfo->defaultValue());
            }
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        }
    }

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    switch (command) {
    case MAV_CMD_NAV_WAYPOINT:
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        // We default all acceptance radius to 0. This allows flight controller to be in control of
        // accept radius.
        _missionItem.setParam2(0);
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        break;

    case MAV_CMD_NAV_LAND:
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    case MAV_CMD_NAV_VTOL_LAND:
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        _missionItem.setParam7(0);
        break;
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    default:
        break;
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    }

    _missionItem.setAutoContinue(true);
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    _missionItem.setFrame((specifiesCoordinate() || specifiesAltitudeOnly()) ? MAV_FRAME_GLOBAL_RELATIVE_ALT : MAV_FRAME_MISSION);
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    setRawEdit(false);
}

void SimpleMissionItem::_sendCommandChanged(void)
{
    emit commandChanged(command());
}

void SimpleMissionItem::_sendFriendlyEditAllowedChanged(void)
{
    emit friendlyEditAllowedChanged(friendlyEditAllowed());
}

QString SimpleMissionItem::category(void) const
{
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    return _commandTree->getUIInfo(_vehicle, (MAV_CMD)command())->category();
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}

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void SimpleMissionItem::setCommand(int command)
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{
    if ((MAV_CMD)command != _missionItem.command()) {
        _missionItem.setCommand((MAV_CMD)command);
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        _updateOptionalSections();
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    }
}

void SimpleMissionItem::setCoordinate(const QGeoCoordinate& coordinate)
{
    if (_missionItem.coordinate() != coordinate) {
        _missionItem.setCoordinate(coordinate);
    }
}
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void SimpleMissionItem::setSequenceNumber(int sequenceNumber)
{
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    if (_missionItem.sequenceNumber() != sequenceNumber) {
        _missionItem.setSequenceNumber(sequenceNumber);
        emit sequenceNumberChanged(sequenceNumber);
        // This is too likely to ignore
        emit abbreviationChanged();
    }
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}
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double SimpleMissionItem::specifiedFlightSpeed(void)
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{
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    if (_speedSection->specifyFlightSpeed()) {
        return _speedSection->flightSpeed()->rawValue().toDouble();
    } else {
        return missionItem().specifiedFlightSpeed();
    }
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}

double SimpleMissionItem::specifiedGimbalYaw(void)
{
    return _cameraSection->available() ? _cameraSection->specifiedGimbalYaw() : missionItem().specifiedGimbalYaw();
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}
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double SimpleMissionItem::specifiedGimbalPitch(void)
{
    return _cameraSection->available() ? _cameraSection->specifiedGimbalPitch() : missionItem().specifiedGimbalPitch();
}

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bool SimpleMissionItem::scanForSections(QmlObjectListModel* visualItems, int scanIndex, Vehicle* vehicle)
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{
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    bool sectionFound = false;
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    Q_UNUSED(vehicle);
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    if (_cameraSection->available()) {
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        sectionFound |= _cameraSection->scanForSection(visualItems, scanIndex);
    }
    if (_speedSection->available()) {
        sectionFound |= _speedSection->scanForSection(visualItems, scanIndex);
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    }
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    return sectionFound;
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}

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void SimpleMissionItem::_updateOptionalSections(void)
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{
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    // Remove previous sections
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    if (_cameraSection) {
        _cameraSection->deleteLater();
        _cameraSection = NULL;
    }
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    if (_speedSection) {
        _speedSection->deleteLater();
        _speedSection = NULL;
    }
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    // Add new sections

    _cameraSection = new CameraSection(_vehicle, this);
    _speedSection = new SpeedSection(_vehicle, this);
    if ((MAV_CMD)command() == MAV_CMD_NAV_WAYPOINT) {
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        _cameraSection->setAvailable(true);
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        _speedSection->setAvailable(true);
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    }

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    connect(_cameraSection, &CameraSection::dirtyChanged,                   this, &SimpleMissionItem::_sectionDirtyChanged);
    connect(_cameraSection, &CameraSection::itemCountChanged,               this, &SimpleMissionItem::_updateLastSequenceNumber);
    connect(_cameraSection, &CameraSection::availableChanged,               this, &SimpleMissionItem::specifiedGimbalYawChanged);
    connect(_cameraSection, &CameraSection::availableChanged,               this, &SimpleMissionItem::specifiedGimbalPitchChanged);
    connect(_cameraSection, &CameraSection::specifiedGimbalPitchChanged,    this, &SimpleMissionItem::specifiedGimbalPitchChanged);
    connect(_cameraSection, &CameraSection::specifiedGimbalYawChanged,      this, &SimpleMissionItem::specifiedGimbalYawChanged);
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    connect(_speedSection,  &SpeedSection::dirtyChanged,                this, &SimpleMissionItem::_sectionDirtyChanged);
    connect(_speedSection,  &SpeedSection::itemCountChanged,            this, &SimpleMissionItem::_updateLastSequenceNumber);
    connect(_speedSection,  &SpeedSection::specifiedFlightSpeedChanged, this, &SimpleMissionItem::specifiedFlightSpeedChanged);
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    emit cameraSectionChanged(_cameraSection);
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    emit speedSectionChanged(_speedSection);
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    emit lastSequenceNumberChanged(lastSequenceNumber());
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}

int SimpleMissionItem::lastSequenceNumber(void) const
{
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    return sequenceNumber() + (_cameraSection ? _cameraSection->itemCount() : 0) + (_speedSection ? _speedSection->itemCount() : 0);
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}

void SimpleMissionItem::_updateLastSequenceNumber(void)
{
    emit lastSequenceNumberChanged(lastSequenceNumber());
}

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void SimpleMissionItem::_sectionDirtyChanged(bool dirty)
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{
    if (dirty) {
        setDirty(true);
    }
}

void SimpleMissionItem::appendMissionItems(QList<MissionItem*>& items, QObject* missionItemParent)
{
    int seqNum = sequenceNumber();

    items.append(new MissionItem(missionItem(), missionItemParent));
    seqNum++;

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    _cameraSection->appendSectionItems(items, missionItemParent, seqNum);
    _speedSection->appendSectionItems(items, missionItemParent, seqNum);
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}
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void SimpleMissionItem::applyNewAltitude(double newAltitude)
{
    MAV_CMD command = (MAV_CMD)this->command();
    const MissionCommandUIInfo* uiInfo = _commandTree->getUIInfo(_vehicle, command);

    if (uiInfo->specifiesCoordinate() || uiInfo->specifiesAltitudeOnly()) {
        switch ((MAV_CMD)this->command()) {
        case MAV_CMD_NAV_LAND:
        case MAV_CMD_NAV_VTOL_LAND:
            // Leave alone
            break;
        default:
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            _altitudeFact.setRawValue(newAltitude);
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            break;
        }
    }
}
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void SimpleMissionItem::setMissionFlightStatus(MissionController::MissionFlightStatus_t& missionFlightStatus)
{
    // If user has not already set speed/gimbal, set defaults from previous items.
    VisualMissionItem::setMissionFlightStatus(missionFlightStatus);
    if (_speedSection->available() && !_speedSection->specifyFlightSpeed() && !qFuzzyCompare(_speedSection->flightSpeed()->rawValue().toDouble(), missionFlightStatus.vehicleSpeed)) {
        _speedSection->flightSpeed()->setRawValue(missionFlightStatus.vehicleSpeed);
    }
    if (_cameraSection->available() && !_cameraSection->specifyGimbal()) {
        if (!qIsNaN(missionFlightStatus.gimbalYaw) && !qFuzzyCompare(_cameraSection->gimbalYaw()->rawValue().toDouble(), missionFlightStatus.gimbalYaw)) {
            _cameraSection->gimbalYaw()->setRawValue(missionFlightStatus.gimbalYaw);
        }
        if (!qIsNaN(missionFlightStatus.gimbalPitch) && !qFuzzyCompare(_cameraSection->gimbalPitch()->rawValue().toDouble(), missionFlightStatus.gimbalPitch)) {
            _cameraSection->gimbalPitch()->setRawValue(missionFlightStatus.gimbalPitch);
        }
    }
}
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void SimpleMissionItem::setAltitudeMode(AltitudeMode altitudeMode)
{
    if (altitudeMode != _altitudeMode) {
        _altitudeMode = altitudeMode;
        emit altitudeModeChanged();
    }
}