subsurface/desktop-widgets/mapwidget.cpp
Berthold Stoeger 66c5c5f72b Map: remove LocationInformationWidget::coordinatesChanged signal
This was used by LocationInformationWidget to instruct the map
that the coordinates of the current dive site has changed.
There is no reason why this couldn't be a function call, as no
other object ever connect()s to this signal. In fact, such a
function already exists viz. updateLocationOnMap.

Therefore, replace the signal by a simple function call.

Moreover, the uuid and coordinates of the dive site were transported
via the global "displayed_dive_site" object. Instead, pass this
information in the parameters of the function. This makes it
easier to reason about data- and control-flow.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2018-10-11 16:25:32 -07:00

141 lines
3.4 KiB
C++

// SPDX-License-Identifier: GPL-2.0
#include <QQmlContext>
#include <QDebug>
#include <QQuickItem>
#include <QModelIndex>
#include "mapwidget.h"
#include "core/divesite.h"
#include "map-widget/qmlmapwidgethelper.h"
#include "qt-models/maplocationmodel.h"
#include "mainwindow.h"
#include "divelistview.h"
static const QUrl urlMapWidget = QUrl(QStringLiteral("qrc:/qml/MapWidget.qml"));
static const QUrl urlMapWidgetError = QUrl(QStringLiteral("qrc:/qml/MapWidgetError.qml"));
static bool isReady = false;
static bool skipReload = false;
#define CHECK_IS_READY_RETURN_VOID() \
if (!isReady) return
MapWidget *MapWidget::m_instance = NULL;
MapWidget::MapWidget(QWidget *parent) : QQuickWidget(parent)
{
m_rootItem = Q_NULLPTR;
m_mapHelper = Q_NULLPTR;
setResizeMode(QQuickWidget::SizeRootObjectToView);
connect(this, &QQuickWidget::statusChanged, this, &MapWidget::doneLoading);
setSource(urlMapWidget);
}
void MapWidget::doneLoading(QQuickWidget::Status status)
{
// the default map widget QML failed; load the error QML.
if (source() == urlMapWidget && status != QQuickWidget::Ready) {
qDebug() << urlMapWidget << "failed to load with status:" << status;
setSource(urlMapWidgetError);
return;
} else if (source() == urlMapWidgetError) { // the error QML finished loading.
return;
}
isReady = true;
m_rootItem = qobject_cast<QQuickItem *>(rootObject());
m_mapHelper = rootObject()->findChild<MapWidgetHelper *>();
connect(m_mapHelper, SIGNAL(selectedDivesChanged(QList<int>)),
this, SLOT(selectedDivesChanged(QList<int>)));
connect(m_mapHelper, SIGNAL(coordinatesChanged()),
this, SLOT(coordinatesChangedLocal()));
}
void MapWidget::centerOnSelectedDiveSite()
{
CHECK_IS_READY_RETURN_VOID();
if (!skipReload)
m_mapHelper->centerOnSelectedDiveSite();
}
void MapWidget::centerOnDiveSite(struct dive_site *ds)
{
CHECK_IS_READY_RETURN_VOID();
if (!skipReload)
m_mapHelper->centerOnDiveSite(ds);
}
void MapWidget::centerOnIndex(const QModelIndex& idx)
{
CHECK_IS_READY_RETURN_VOID();
struct dive_site *ds = get_dive_site_by_uuid(idx.model()->index(idx.row(), 0).data().toUInt());
if (!ds || !dive_site_has_gps_location(ds))
centerOnSelectedDiveSite();
else
centerOnDiveSite(ds);
}
void MapWidget::repopulateLabels()
{
CHECK_IS_READY_RETURN_VOID();
m_mapHelper->reloadMapLocations();
}
void MapWidget::reload()
{
CHECK_IS_READY_RETURN_VOID();
setEditMode(false);
if (!skipReload)
m_mapHelper->reloadMapLocations();
}
void MapWidget::setEditMode(bool editMode)
{
CHECK_IS_READY_RETURN_VOID();
m_mapHelper->setEditMode(editMode);
}
void MapWidget::endGetDiveCoordinates()
{
CHECK_IS_READY_RETURN_VOID();
setEditMode(false);
}
void MapWidget::prepareForGetDiveCoordinates()
{
CHECK_IS_READY_RETURN_VOID();
setEditMode(true);
}
void MapWidget::selectedDivesChanged(QList<int> list)
{
CHECK_IS_READY_RETURN_VOID();
skipReload = true;
MainWindow::instance()->dive_list()->unselectDives();
if (!list.empty())
MainWindow::instance()->dive_list()->selectDives(list);
skipReload = false;
}
void MapWidget::coordinatesChangedLocal()
{
CHECK_IS_READY_RETURN_VOID();
emit coordinatesChanged();
}
void MapWidget::updateDiveSiteCoordinates(uint32_t uuid, degrees_t latitude, degrees_t longitude)
{
CHECK_IS_READY_RETURN_VOID();
m_mapHelper->updateDiveSiteCoordinates(uuid, latitude, longitude);
}
MapWidget::~MapWidget()
{
m_instance = NULL;
}
MapWidget *MapWidget::instance()
{
if (m_instance == NULL)
m_instance = new MapWidget();
return m_instance;
}