LoadDialog.h

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* ngscopeclient                                                                                                        *
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#ifndef LoadDialog_h
#define LoadDialog_h
 
#include "Dialog.h"
#include "Session.h"
 
#include <future>
 
class LoadChannelUIState
{
public:
    bool m_loadEnabled;
 
    int m_voltageRangeIndex;
    std::vector<std::string> m_voltageRangeNames;
 
    int m_currentRangeIndex;
    std::vector<std::string> m_currentRangeNames;
 
    Load::LoadMode m_mode;
 
    float m_committedSetPoint;
    std::string m_setPoint;
 
    LoadChannelUIState()
        : m_loadEnabled(false)
        , m_voltageRangeIndex(0)
        , m_currentRangeIndex(0)
        , m_mode(Load::MODE_CONSTANT_CURRENT)
        , m_committedSetPoint(0)
        , m_chan(0)
        , m_load(nullptr)
    {}
 
    LoadChannelUIState(std::shared_ptr<SCPILoad> load, size_t chan)
        : m_loadEnabled(load->GetLoadActive(chan))
        , m_mode(load->GetLoadMode(chan))
        , m_chan(chan)
        , m_load(load)
    {
        //Voltage ranges
        Unit volts(Unit::UNIT_VOLTS);
        auto vranges = load->GetLoadVoltageRanges(chan);
        for(auto v : vranges)
            m_voltageRangeNames.push_back(volts.PrettyPrint(v));
        m_voltageRangeIndex = load->GetLoadVoltageRange(chan);
 
        //Current ranges
        Unit amps(Unit::UNIT_AMPS);
        auto iranges = load->GetLoadCurrentRanges(chan);
        for(auto i : iranges)
            m_currentRangeNames.push_back(amps.PrettyPrint(i));
        m_currentRangeIndex = load->GetLoadCurrentRange(chan);
 
        RefreshSetPoint();
    }
 
    void RefreshSetPoint()
    {
        //can happen if we're a placeholder prior to completion of async init
        if(m_load == nullptr)
            return;
 
        m_committedSetPoint = m_load->GetLoadSetPoint(m_chan);
 
        //Mode
        Unit volts(Unit::UNIT_VOLTS);
        Unit amps(Unit::UNIT_AMPS);
        Unit watts(Unit::UNIT_WATTS);
        Unit ohms(Unit::UNIT_OHMS);
        switch(m_mode)
        {
            case Load::MODE_CONSTANT_CURRENT:
                m_setPoint = amps.PrettyPrint(m_committedSetPoint);
                break;
 
            case Load::MODE_CONSTANT_VOLTAGE:
                m_setPoint = volts.PrettyPrint(m_committedSetPoint);
                break;
 
            case Load::MODE_CONSTANT_POWER:
                m_setPoint = watts.PrettyPrint(m_committedSetPoint);
                break;
 
            case Load::MODE_CONSTANT_RESISTANCE:
                m_setPoint = ohms.PrettyPrint(m_committedSetPoint);
                break;
 
            default:
                break;
        }
    }
 
protected:
    size_t m_chan;
    std::shared_ptr<Load> m_load;
};
 
 
class LoadDialog : public Dialog
{
public:
    LoadDialog(std::shared_ptr<SCPILoad> load, std::shared_ptr<LoadState> state, Session* session);
    virtual ~LoadDialog();
 
    virtual bool DoRender();
 
    std::shared_ptr<SCPILoad> GetLoad()
    { return m_load; }
 
    void RefreshFromHardware();
 
protected:
    void ChannelSettings(size_t channel);
 
    double m_tstart;
 
    std::shared_ptr<SCPILoad> m_load;
 
    std::shared_ptr<LoadState> m_state;
 
    std::vector<std::string> m_channelNames;
 
    //Future channel state during loading
    std::vector<std::future<LoadChannelUIState> > m_futureUIState;
 
    std::vector<LoadChannelUIState> m_channelUIState;
};
 
 
 
#endif