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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "qdeclarativelocationtestmodel_p.h"
#include <qgeocoordinate.h>
#include <QtCore/QTime>
#include <QtCore>
QT_BEGIN_NAMESPACE
QDeclarativeLocationTestModel::QDeclarativeLocationTestModel(QObject *parent):
QAbstractListModel(parent),
delay_(0),
datacount_(0),
componentCompleted_(false),
crazyLevel_(0),
crazyMode_(false)
{
timer_.setSingleShot(true);
connect(&timer_, SIGNAL(timeout()), this, SLOT(timerFired()));
}
QDeclarativeLocationTestModel::~QDeclarativeLocationTestModel()
{
if (timer_.isActive())
timer_.stop();
if (!dataobjects_.isEmpty()) {
qDeleteAll(dataobjects_);
dataobjects_.clear();
}
}
void QDeclarativeLocationTestModel::timerFired()
{
//qDebug() << "timer fired" ;
repopulate();
if (crazyMode_) {
int delay = (QRandomGenerator::global()->bounded(uint(INT_MAX) + 1) % crazyLevel_); // writing software is exact science
delay = qMax(1000, delay); // 3 ms at minimum
qDebug() << "starting timer with : " << delay;
timer_.start(delay);
}
}
void QDeclarativeLocationTestModel::componentComplete()
{
componentCompleted_ = true;
scheduleRepopulation();
}
int QDeclarativeLocationTestModel::datacount() const
{
return datacount_;
}
void QDeclarativeLocationTestModel::setDatacount(int datacount)
{
if (datacount_ == datacount)
return;
datacount_ = datacount;
emit datacountChanged();
scheduleRepopulation();
}
int QDeclarativeLocationTestModel::delay() const
{
return delay_;
}
void QDeclarativeLocationTestModel::setDelay(int delay)
{
if (delay_ == delay)
return;
delay_ = delay;
emit delayChanged();
}
QString QDeclarativeLocationTestModel::datatype() const
{
return datatype_;
}
void QDeclarativeLocationTestModel::setDatatype(QString datatype)
{
if (datatype_ == datatype)
return;
datatype_ = datatype;
emit datatypeChanged();
scheduleRepopulation();
}
int QDeclarativeLocationTestModel::crazyLevel() const
{
return crazyLevel_;
}
void QDeclarativeLocationTestModel::setCrazyLevel(int level)
{
if (level == crazyLevel_)
return;
crazyLevel_ = level;
reset();
scheduleRepopulation();
emit crazyLevelChanged();
}
bool QDeclarativeLocationTestModel::crazyMode() const
{
return crazyMode_;
}
void QDeclarativeLocationTestModel::setCrazyMode(bool mode)
{
if (mode == crazyMode_)
return;
crazyMode_ = mode;
//if (!crazyMode_)
//reset();
//else
if (crazyMode_)
scheduleRepopulation();
emit crazyModeChanged();
}
// only coordinate datatype for now to get started with,
// refactor if more usecases for the model emerge.
void QDeclarativeLocationTestModel::repopulate()
{
double latitude = -30;
double longitude = 153;
beginResetModel();
if (!dataobjects_.isEmpty()) {
qDeleteAll(dataobjects_);
dataobjects_.clear();
}
int datacount = datacount_;
if (crazyMode_)
datacount = QRandomGenerator::global()->bounded(datacount_);
for (int i = 0; i < datacount; ++i) {
DataObject* dataobject = new DataObject;
dataobject->coordinate_ = QGeoCoordinate(latitude, longitude);
dataobjects_.append(dataobject);
longitude -= 0.2;
latitude += 0.2;
}
endResetModel();
}
void QDeclarativeLocationTestModel::update()
{
scheduleRepopulation();
}
void QDeclarativeLocationTestModel::reset()
{
if (timer_.isActive())
timer_.stop();
beginResetModel();
if (!dataobjects_.isEmpty()) {
qDeleteAll(dataobjects_);
dataobjects_.clear();
}
endResetModel();
}
void QDeclarativeLocationTestModel::scheduleRepopulation()
{
if (!componentCompleted_)
return;
if (datacount_ <= 0)
return;
if (timer_.isActive())
timer_.stop();
if (crazyMode_) {
// start generating arbitrary amount of data at arbitrary intervals
int delay = QRandomGenerator::global()->bounded(crazyLevel_); // writing software is exact science
delay = qMax(3, delay); // 3 ms at minimum
qDebug() << "starting timer with : " << delay;
timer_.start(delay);
} else {
// just update
if (delay_ > 0)
timer_.start(delay_);
else
repopulate();
}
}
int QDeclarativeLocationTestModel::rowCount(const QModelIndex& parent) const
{
Q_UNUSED(parent);
return dataobjects_.count();
}
// Returns the stored under the given role for the item referred to by the index.
QVariant QDeclarativeLocationTestModel::data(const QModelIndex& index, int role) const
{
switch (role) {
case TestDataRole:
if (dataobjects_.at(index.row())) {
return QVariant::fromValue(qobject_cast<QObject*>(dataobjects_.at(index.row())));
}
break;
}
return QVariant();
}
QHash<int, QByteArray> QDeclarativeLocationTestModel::roleNames() const
{
QHash<int, QByteArray> roles = QAbstractListModel::roleNames();
roles.insert(TestDataRole, "modeldata");
return roles;
}
QT_END_NAMESPACE
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