15.1.857. tablet_qt/tasks/wemwbs.cpp

/*
    Copyright (C) 2012, University of Cambridge, Department of Psychiatry.
    Created by Rudolf Cardinal (rnc1001@cam.ac.uk).

    This file is part of CamCOPS.

    CamCOPS is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    CamCOPS is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with CamCOPS. If not, see <https://www.gnu.org/licenses/>.
*/

#include "wemwbs.h"

#include "common/textconst.h"
#include "lib/stringfunc.h"
#include "maths/mathfunc.h"
#include "questionnairelib/questionnaire.h"
#include "questionnairelib/qumcqgrid.h"
#include "questionnairelib/qutext.h"
#include "tasklib/taskfactory.h"
#include "tasklib/taskregistrar.h"
using mathfunc::noneNull;
using mathfunc::sumInt;
using stringfunc::strnum;
using stringfunc::strseq;

const int FIRST_Q = 1;
const int N_QUESTIONS = 14;
const int MIN_Q_SCORE = 1;
const int MAX_Q_SCORE = 5;
const QString QPREFIX("q");

const QString Wemwbs::WEMWBS_TABLENAME("wemwbs");

void initializeWemwbs(TaskFactory& factory)
{
    static TaskRegistrar<Wemwbs> registered(factory);
}


Wemwbs::Wemwbs(CamcopsApp& app, DatabaseManager& db, const int load_pk) :
    Task(app, db, WEMWBS_TABLENAME, false, false, false)
// ... anon, clin, resp
{
    addFields(
        strseq(QPREFIX, FIRST_Q, N_QUESTIONS), QMetaType::fromType<int>()
    );

    load(load_pk);  // MUST ALWAYS CALL from derived Task constructor.
}

// ============================================================================
// Class info
// ============================================================================

QString Wemwbs::shortname() const
{
    return "WEMWBS";
}

QString Wemwbs::longname() const
{
    return tr("Warwick–Edinburgh Mental Well-Being Scale");
}

QString Wemwbs::description() const
{
    return tr(
        "14 positively-phrased Likert-style items measuring mental "
        "well-being over the preceding 2 weeks."
    );
}

// ============================================================================
// Instance info
// ============================================================================

bool Wemwbs::isComplete() const
{
    return noneNull(values(strseq(QPREFIX, FIRST_Q, N_QUESTIONS)));
}

QStringList Wemwbs::summary() const
{
    return QStringList{QString("%1 <b>%2</b> (range %3–%4)")
                           .arg(TextConst::totalScore())
                           .arg(totalScore())
                           .arg(N_QUESTIONS * MIN_Q_SCORE)
                           .arg(N_QUESTIONS * MAX_Q_SCORE)};
}

QStringList Wemwbs::detail() const
{
    QStringList lines = completenessInfo();
    lines
        += fieldSummaries("wemwbs_q", "", ": ", QPREFIX, FIRST_Q, N_QUESTIONS);
    lines.append("");
    lines += summary();
    return lines;
}

OpenableWidget* Wemwbs::editor(const bool read_only)
{
    const NameValueOptions options{
        {xstring("wemwbs_a1"), 1},
        {xstring("wemwbs_a2"), 2},
        {xstring("wemwbs_a3"), 3},
        {xstring("wemwbs_a4"), 4},
        {xstring("wemwbs_a5"), 5},
    };

    QVector<QuestionWithOneField> qfields;
    for (int i = FIRST_Q; i <= N_QUESTIONS; ++i) {
        qfields.append(QuestionWithOneField(
            xstring(strnum("wemwbs_q", i)), fieldRef(strnum(QPREFIX, i))
        ));
    }

    QuPagePtr page((new QuPage{
                        (new QuText(xstring("wemwbs_prompt")))->setBold(),
                        new QuMcqGrid(qfields, options),
                    })
                       ->setTitle(longname()));

    auto questionnaire = new Questionnaire(m_app, {page});
    questionnaire->setType(QuPage::PageType::Patient);
    questionnaire->setReadOnly(read_only);
    return questionnaire;
}

// ============================================================================
// Task-specific calculations
// ============================================================================

int Wemwbs::totalScore() const
{
    return sumInt(values(strseq(QPREFIX, FIRST_Q, N_QUESTIONS)));
}