routetab.cpp Example File
geoservicedemo/routetab.cpp
#include "routetab.h"
#include "routepresenter.h"
#include <QTreeWidget>
#include <QLineEdit>
#include <QString>
#include <QLabel>
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QPushButton>
#include <QMessageBox>
#include <QDialogButtonBox>
RouteCoordinateInputDialog::RouteCoordinateInputDialog(QGeoCoordinate& src, QGeoCoordinate& dst, QWidget *parent)
: QDialog(parent), m_src(src), m_dst(dst)
{
setWindowTitle(tr("Route End Points"));
QLabel *source = new QLabel(tr("Source (lat,long):"));
m_srcLong = new QLineEdit(QString::number(src.longitude()));
m_srcLong->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
m_srcLat = new QLineEdit(QString::number(src.latitude()));
m_srcLat->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
QLabel *destination = new QLabel(tr("Destination (lat,long):"));
m_destLong = new QLineEdit(QString::number(dst.longitude()));
m_destLong->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
m_destLat = new QLineEdit(QString::number(dst.latitude()));
m_destLat->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
QHBoxLayout *firstrow = new QHBoxLayout;
firstrow->setSpacing(2);
firstrow->setContentsMargins(2, 1, 2, 1);
firstrow->addWidget(m_srcLat);
firstrow->addWidget(m_srcLong);
QHBoxLayout *secondrow = new QHBoxLayout;
secondrow->setSpacing(2);
secondrow->setContentsMargins(2, 1, 2, 1);
secondrow->addWidget(m_destLat);
secondrow->addWidget(m_destLong);
QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, Qt::Horizontal);
connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
QVBoxLayout *mainLayout = new QVBoxLayout;
mainLayout->setSizeConstraint(QLayout::SetFixedSize);
mainLayout->setSpacing(2);
mainLayout->setContentsMargins(2, 1, 2, 1);
mainLayout->addWidget(source);
mainLayout->addLayout(firstrow);
mainLayout->addWidget(destination);
mainLayout->addLayout(secondrow);
mainLayout->addWidget(buttonBox);
setLayout(mainLayout);
}
void RouteCoordinateInputDialog::accept()
{
m_src.setLatitude(m_srcLat->text().toDouble());
m_src.setLongitude(m_srcLong->text().toDouble());
m_dst.setLatitude(m_destLat->text().toDouble());
m_dst.setLongitude(m_destLong->text().toDouble());
QDialog::accept();
}
RouteTab::RouteTab(QWidget *parent) :
QWidget(parent),
m_routingManager(0)
{
m_src.setLatitude(53.546836);
m_src.setLongitude(9.986572);
m_dst.setLatitude(52.382306);
m_dst.setLongitude(9.733887);
m_requestTravelModes = QGeoRouteRequest::CarTravel;
m_requestRouteOptimizations = QGeoRouteRequest::FastestRoute;
m_requestBtn = new QPushButton(tr("Request Route"));
m_requestBtn->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
m_requestBtn->setDisabled(true);
QObject::connect(m_requestBtn, SIGNAL(clicked(bool)),
this, SLOT(on_btnRequest_clicked()));
m_updateBtn = new QPushButton(tr("Update Route"));
m_updateBtn->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
m_updateBtn->setDisabled(true);
QObject::connect(m_updateBtn, SIGNAL(clicked(bool)),
this, SLOT(on_btnUpdate_clicked()));
m_resultTree = new QTreeWidget();
QStringList labels;
labels << tr("Elements") << tr("Value");
m_resultTree->setHeaderLabels(labels);
m_resultTree->setColumnWidth(0, 240);
QHBoxLayout *firstrow = new QHBoxLayout;
firstrow->setSpacing(2);
firstrow->setContentsMargins(2, 1, 2, 1);
firstrow->addWidget(m_requestBtn);
firstrow->addWidget(m_updateBtn);
QVBoxLayout *mainLayout = new QVBoxLayout;
mainLayout->setSpacing(2);
mainLayout->setContentsMargins(2, 1, 2, 1);
mainLayout->addLayout(firstrow);
mainLayout->addWidget(m_resultTree);
setLayout(mainLayout);
}
RouteTab::~RouteTab()
{
}
void RouteTab::initialize(QGeoRoutingManager *routingManager)
{
m_resultTree->clear();
m_routingManager = routingManager;
if (m_routingManager) {
QObject::connect(m_routingManager, SIGNAL(finished(QGeoRouteReply*)), this,
SLOT(replyFinished(QGeoRouteReply*)));
QObject::connect(m_routingManager,
SIGNAL(error(QGeoRouteReply*, QGeoRouteReply::Error, QString)), this,
SLOT(resultsError(QGeoRouteReply*, QGeoRouteReply::Error, QString)));
m_requestBtn->setDisabled(false);
} else
m_requestBtn->setDisabled(true);
}
void RouteTab::on_btnRequest_clicked()
{
if (m_routingManager) {
RouteCoordinateInputDialog dlg(m_src, m_dst, this);
if (dlg.exec() == QDialog::Accepted) {
m_resultTree->clear();
QTreeWidgetItem* waitInfoItem = new QTreeWidgetItem(m_resultTree);
waitInfoItem->setText(0, tr("Route"));
waitInfoItem->setText(1, tr("Calculating"));
m_updateBtn->setDisabled(true);
QGeoRouteRequest request(m_src, m_dst);
if ((m_routingManager->supportedSegmentDetails() & QGeoRouteRequest::BasicSegmentData) != 0)
request.setSegmentDetail(QGeoRouteRequest::BasicSegmentData);
if ((m_routingManager->supportedManeuverDetails() & QGeoRouteRequest::BasicManeuvers) != 0)
request.setManeuverDetail(QGeoRouteRequest::BasicManeuvers);
request.setTravelModes(m_requestTravelModes);
request.setRouteOptimization(m_requestRouteOptimizations);
m_routingManager->calculateRoute(request);
}
} else {
QMessageBox::warning(this, tr("Routing"), tr("No routing manager available."));
}
}
void RouteTab::on_btnUpdate_clicked()
{
if (m_routingManager && m_routes.count() > 0) {
m_resultTree->clear();
QTreeWidgetItem* top = new QTreeWidgetItem(m_resultTree);
top->setText(0, tr("Route"));
top->setText(1, tr("Updating"));
m_updateBtn->setDisabled(true);
m_routingManager->updateRoute(m_routes[0], m_src);
} else {
QMessageBox::warning(this, tr("Routing"), tr("Route update not available."));
}
}
void RouteTab::replyFinished(QGeoRouteReply* reply)
{
if (reply->error() == QGeoRouteReply::NoError) {
m_routes = reply->routes();
RoutePresenter presenter(m_resultTree, reply);
presenter.show();
reply->deleteLater();
if (m_routes.count() > 0 && m_routingManager->supportsRouteUpdates())
m_updateBtn->setDisabled(false);
}
}
void RouteTab::resultsError(QGeoRouteReply* reply, QGeoRouteReply::Error error, QString errorString)
{
Q_UNUSED(error)
QTreeWidgetItem* errorResultItem = new QTreeWidgetItem(m_resultTree);
errorResultItem->setText(0, tr("Error"));
errorResultItem->setText(1, errorString);
reply->deleteLater();
}