vectoritem.cpp

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//  ************************************************************************************************
//
//  qt-mvvm: Model-view-view-model framework for large GUI applications
//
//! @file      mvvm/model/mvvm/standarditems/vectoritem.cpp
//! @brief     Implements class CLASS?
//!
//! @homepage  http://www.bornagainproject.org
//! @license   GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2020
//! @authors   Gennady Pospelov et al, Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
//  ************************************************************************************************
 
#include "mvvm/standarditems/vectoritem.h"
#include "mvvm/model/customvariants.h"
#include "mvvm/signals/itemmapper.h"
#include <sstream>
 
using namespace ModelView;
 
VectorItem::VectorItem() : CompoundItem(Constants::VectorItemType)
{
    addProperty(P_X, 0.0)->setDisplayName("X");
    addProperty(P_Y, 0.0)->setDisplayName("Y");
    addProperty(P_Z, 0.0)->setDisplayName("Z");
 
    setEditable(false);
 
    update_label();
}
 
void VectorItem::activate()
{
    auto on_property_change = [this](SessionItem*, const std::string&) { update_label(); };
    mapper()->setOnPropertyChange(on_property_change, this);
}
 
void VectorItem::update_label()
{
    std::ostringstream ostr;
    ostr << "(" << property<double>(P_X) << ", " << property<double>(P_Y) << ", "
         << property<double>(P_Z) << ")";
    setData(Variant::fromValue(ostr.str()), ItemDataRole::DATA, /*direct*/ true);
}