routetab.cpp Example File
qgeoapiui/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 <qgeorouterequest.h>
RouteTab::RouteTab(QWidget *parent) :
QWidget(parent),
m_routingManager(0)
{
QLabel *source = new QLabel(tr("Source (lat,long):"));
m_srcLong = new QLineEdit("9.986572");
m_srcLong->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
m_srcLat = new QLineEdit("53.546836");
m_srcLat->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
QLabel *destination = new QLabel(tr("Destination (lat,long):"));
m_destLong = new QLineEdit("9.733887");
m_destLong->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
m_destLat = new QLineEdit("52.382306");
m_destLat->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
requestBtn = new QPushButton(tr("Request Route"));
requestBtn->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Fixed);
requestBtn->setDisabled(true);
QObject::connect(requestBtn, SIGNAL(clicked(bool)),
this, SLOT(on_btnRequest_clicked()));
updateBtn = new QPushButton(tr("Update Route"));
updateBtn->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Fixed);
updateBtn->setDisabled(true);
QObject::connect(updateBtn, SIGNAL(clicked(bool)),
this, SLOT(on_btnUpdate_clicked()));
m_resultTree = new QTreeWidget();
QStringList labels;
labels << tr("Elements") << tr("Value");
m_resultTree->setHeaderLabels(labels);
QHBoxLayout *firstrow = new QHBoxLayout;
firstrow->setSpacing(0);
firstrow->setContentsMargins(0, 0, 0, 0);
firstrow->addWidget(source);
firstrow->addWidget(m_srcLat);
firstrow->addWidget(m_srcLong);
firstrow->addWidget(requestBtn);
QHBoxLayout *secondrow = new QHBoxLayout;
secondrow->setSpacing(0);
secondrow->setContentsMargins(0, 0, 0, 0);
secondrow->addWidget(destination);
secondrow->addWidget(m_destLat);
secondrow->addWidget(m_destLong);
secondrow->addWidget(updateBtn);
QVBoxLayout *mainLayout = new QVBoxLayout;
mainLayout->setSpacing(2);
mainLayout->setContentsMargins(2, 1, 2, 1);
mainLayout->addLayout(firstrow);
mainLayout->addLayout(secondrow);
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)));
requestBtn->setDisabled(false);
}
else
requestBtn->setDisabled(true);
}
void RouteTab::on_btnRequest_clicked()
{
if (m_routingManager) {
m_resultTree->clear();
QTreeWidgetItem* top = new QTreeWidgetItem(m_resultTree);
top->setText(0, tr("Route"));
top->setText(1, tr("Calculating"));
updateBtn->setDisabled(true);
QGeoCoordinate src(m_srcLat->text().toDouble(), m_srcLong->text().toDouble());
QGeoCoordinate dst(m_destLat->text().toDouble(), m_destLong->text().toDouble());
QGeoRouteRequest request(src, dst);
if((m_routingManager->supportedSegmentDetails() & QGeoRouteRequest::BasicSegmentData) != 0)
request.setSegmentDetail(QGeoRouteRequest::BasicSegmentData);
if((m_routingManager->supportedInstructionDetails() & QGeoRouteRequest::BasicInstructions) != 0)
request.setInstructionDetail(QGeoRouteRequest::BasicInstructions);
m_routingManager->calculateRoute(request);
} else {
QMessageBox::warning(this, tr("Routing"), tr("No routing manager available."));
}
}
void RouteTab::on_btnUpdate_clicked()
{
if (m_routingManager && routes.count()>0) {
m_resultTree->clear();
QTreeWidgetItem* top = new QTreeWidgetItem(m_resultTree);
top->setText(0, tr("Route"));
top->setText(1, tr("Updating"));
updateBtn->setDisabled(true);
QGeoCoordinate src(m_srcLat->text().toDouble(), m_srcLong->text().toDouble());
m_routingManager->updateRoute(routes[0],src);
} else {
QMessageBox::warning(this, tr("Routing"), tr("Route update not available."));
}
}
void RouteTab::replyFinished(QGeoRouteReply* reply)
{
if(reply->error() == QGeoRouteReply::NoError) {
routes = reply->routes();
RoutePresenter presenter(m_resultTree, reply);
presenter.show();
reply->deleteLater();
if(routes.count()>0 && m_routingManager->supportsRouteUpdates())
updateBtn->setDisabled(false);
}
}
void RouteTab::resultsError(QGeoRouteReply* reply, QGeoRouteReply::Error error, QString errorString)
{
Q_UNUSED(error)
QTreeWidgetItem* top = new QTreeWidgetItem(m_resultTree);
top->setText(0, tr("Error"));
top->setText(1, errorString);
reply->deleteLater();
}