/
mapwidget.cpp
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/
mapwidget.cpp
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#include "mapwidget.h"
MapWidget::MapWidget(QWidget *parent) :
QWidget(parent),
m_center(55.755831, 37.617673),
m_zoom(10),
m_online(true),
m_lockWheel(false)
{
m_tiles = new TilesMap(m_center, m_zoom, m_online, this);
connect(m_tiles, SIGNAL(updated(QRect)), SLOT(updateMap(QRect)));
connect(m_tiles, SIGNAL(tilesLoading(int)), SIGNAL(tilesLoading(int)));
connect(m_tiles, SIGNAL(zoomChanged(int)), SIGNAL(zoomChanged(int)));
m_overlays = new Overlays(m_center, m_zoom, this);
m_pointDialog = new PointDialog(this);
connect(m_pointDialog, SIGNAL(accepted()), SLOT(pointDialogAccepted()));
QShortcut *sc;
sc = new QShortcut(QKeySequence("Left"), this);
connect(sc, SIGNAL(activated()), SLOT(panLeft()));
sc = new QShortcut(QKeySequence("Right"), this);
connect(sc, SIGNAL(activated()), SLOT(panRight()));
sc = new QShortcut(QKeySequence("Down"), this);
connect(sc, SIGNAL(activated()), SLOT(panDown()));
sc = new QShortcut(QKeySequence("Up"), this);
connect(sc, SIGNAL(activated()), SLOT(panUp()));
sc = new QShortcut(QKeySequence("PgUp"), this);
connect(sc, SIGNAL(activated()), SLOT(zoomIn()));
sc = new QShortcut(QKeySequence("PgDown"), this);
connect(sc, SIGNAL(activated()), SLOT(zoomOut()));
sc = new QShortcut(QKeySequence("Escape"), this);
connect(sc, SIGNAL(activated()), SLOT(hideAll()));
sc = new QShortcut(QKeySequence("Shift+Insert"), this);
connect(sc, SIGNAL(activated()), SLOT(openAddPointDialog()));
sc = new QShortcut(QKeySequence("E"), this);
connect(sc, SIGNAL(activated()), SLOT(openEditPointDialog()));
sc = new QShortcut(QKeySequence("Delete"), this);
connect(sc, SIGNAL(activated()), SLOT(openDeletePointDialog()));
sc = new QShortcut(QKeySequence("Alt+I"), this);
connect(sc, SIGNAL(activated()), SLOT(switchOnline()));
sc = new QShortcut(QKeySequence("Alt+O, Alt+O"), this);
connect(sc, SIGNAL(activated()), SLOT(openInOSM()));
sc = new QShortcut(QKeySequence("Alt+O, Alt+G"), this);
connect(sc, SIGNAL(activated()), SLOT(openInGoogleMaps()));
sc = new QShortcut(QKeySequence("Alt+O, Alt+Y"), this);
connect(sc, SIGNAL(activated()), SLOT(openInYandexMaps()));
}
void MapWidget::resizeEvent(QResizeEvent *event)
{
m_tiles->resize(size());
m_overlays->resize(size());
}
void MapWidget::mousePressEvent(QMouseEvent *event)
{
if (event->button() == Qt::LeftButton) {
m_pressPos = m_movePos = event->pos();
}
else if (event->button() == Qt::RightButton) {
QPoint delta = event->pos() - QPoint(width() / 2, height() / 2);
LatLon coord = pointToLatLon(latLonToPoint(m_center) + delta);
QLineEdit *edit;
edit = m_pointDialog->findChild<QLineEdit *>("latitudeEdit");
edit->setText(QString().setNum(coord.lat(), 'f', 6));
edit = m_pointDialog->findChild<QLineEdit *>("longitudeEdit");
edit->setText(QString().setNum(coord.lon(), 'f', 6));
edit = m_pointDialog->findChild<QLineEdit *>("nameEdit");
edit->setText("");
edit->setFocus();
m_pointDialog->setWindowTitle("Add Point");
m_pointDialog->open();
}
}
void MapWidget::mouseMoveEvent(QMouseEvent *event)
{
QPoint delta = event->pos() - m_movePos;
m_movePos = event->pos();
QPointF ct = latLonToPoint(m_center) - QPointF(delta);
m_center = pointToLatLon(ct);
m_tiles->setCenter(m_center);
m_overlays->setCenter(m_center);
update();
}
void MapWidget::mouseReleaseEvent(QMouseEvent *event)
{
if (event->pos() == m_pressPos) {
m_overlays->deselect();
}
update();
m_tiles->loadTiles();
}
void MapWidget::wheelEvent(QWheelEvent *event)
{
if (m_lockWheel) {
return;
}
int newZoom = m_tiles->setZoom(m_zoom + event->delta() / 120);
if (newZoom != m_zoom) {
QPoint delta = event->pos() - QPoint(width() / 2, height() / 2);
LatLon pos = pointToLatLon(latLonToPoint(m_center) + delta);
m_zoom = newZoom;
m_center = pointToLatLon(latLonToPoint(pos) - delta);
m_tiles->setCenter(m_center);
m_tiles->loadTiles();
m_overlays->setZoom(m_zoom);
m_overlays->setCenter(m_center);
update();
}
m_lockWheel = true;
QTimer::singleShot(100, this, SLOT(unlockWheel()));
}
void MapWidget::zoomIn()
{
int newZoom = m_tiles->setZoom(m_zoom + 1);
if (newZoom != m_zoom) {
m_zoom = newZoom;
m_tiles->loadTiles();
m_overlays->setZoom(m_zoom);
update();
}
}
void MapWidget::zoomOut()
{
int newZoom = m_tiles->setZoom(m_zoom - 1);
if (newZoom != m_zoom) {
m_zoom = newZoom;
m_tiles->loadTiles();
m_overlays->setZoom(m_zoom);
update();
}
}
void MapWidget::hideAll()
{
m_overlays->deselect();
}
void MapWidget::openAddPointDialog()
{
QClipboard *clipboard = QApplication::clipboard();
LatLon coord(clipboard->text());
QLineEdit *edit;
edit = m_pointDialog->findChild<QLineEdit *>("latitudeEdit");
edit->setText(QString().setNum(coord.lat(), 'f', 6));
edit = m_pointDialog->findChild<QLineEdit *>("longitudeEdit");
edit->setText(QString().setNum(coord.lon(), 'f', 6));
edit = m_pointDialog->findChild<QLineEdit *>("nameEdit");
edit->setText("");
edit->setFocus();
m_pointDialog->setWindowTitle("Add Point");
m_pointDialog->open();
}
void MapWidget::openEditPointDialog()
{
if (Point *p = m_overlays->selectedPoint()) {
QLineEdit *edit;
edit = m_pointDialog->findChild<QLineEdit *>("latitudeEdit");
edit->setText(QString().setNum(p->coord().lat(), 'f', 6));
edit = m_pointDialog->findChild<QLineEdit *>("longitudeEdit");
edit->setText(QString().setNum(p->coord().lon(), 'f', 6));
edit = m_pointDialog->findChild<QLineEdit *>("nameEdit");
edit->setText(p->label());
edit->selectAll();
edit->setFocus();
m_pointDialog->setWindowTitle("Edit Point");
m_pointDialog->open();
}
}
void MapWidget::openDeletePointDialog()
{
if (Point *p = m_overlays->selectedPoint()) {
if (QMessageBox::Ok == QMessageBox::warning(
this,
"Delete Point",
QString("Delete point \"%1\"?").arg(p->label()),
QMessageBox::Ok | QMessageBox::Cancel)) {
m_overlays->deleteSelectedPoint();
}
}
}
void MapWidget::pointDialogAccepted()
{
QLineEdit *edit;
edit = m_pointDialog->findChild<QLineEdit *>("latitudeEdit");
qreal lat = edit->text().toDouble();
edit = m_pointDialog->findChild<QLineEdit *>("longitudeEdit");
qreal lon = edit->text().toDouble();
edit = m_pointDialog->findChild<QLineEdit *>("nameEdit");
QString label = edit->text();
LatLon coord(lat, lon);
if (m_overlays->selectedPoint()) {
m_overlays->updateSelectedPoint(coord, label);
}
else {
m_overlays->addPoint(coord, label);
}
}
void MapWidget::switchOnline()
{
m_online = !m_online;
m_tiles->setOnline(m_online);
emit onlineSwitched(m_online);
}
void MapWidget::openInOSM()
{
QDesktopServices::openUrl(QUrl(
QString("http://www.openstreetmap.org/?lat=%1&lon=%2&zoom=%3&layers=M")
.arg(m_center.lat())
.arg(m_center.lon())
.arg(m_zoom)));
}
void MapWidget::openInGoogleMaps()
{
QDesktopServices::openUrl(QUrl(
QString("http://maps.google.com/?ll=%1,%2&z=%3&t=m")
.arg(m_center.lat())
.arg(m_center.lon())
.arg(m_zoom)));
}
void MapWidget::openInYandexMaps()
{
QDesktopServices::openUrl(QUrl(
QString("http://maps.yandex.ru/?ll=%2,%1&z=%3&l=map")
.arg(m_center.lat())
.arg(m_center.lon())
.arg(m_zoom)));
}
void MapWidget::pan(const QPoint &delta)
{
m_center = pointToLatLon(latLonToPoint(m_center) + delta);
m_tiles->setCenter(m_center);
m_tiles->loadTiles();
m_overlays->setCenter(m_center);
update();
}
QPointF MapWidget::latLonToPoint(LatLon latlon)
{
qreal x = (latlon.lon() + 180.0) / 360.0;
qreal y = (M_PI - log(tan(M_PI / 4 + latlon.lat() * (M_PI / 180.0) / 2))) / (2 * M_PI);
qreal z = static_cast<qreal>(1 << m_zoom);
return QPointF(x * z * 256, y * z * 256);
}
LatLon MapWidget::pointToLatLon(QPointF point)
{
qreal z = static_cast<qreal>(1 << m_zoom);
qreal lat = (2 * atan(exp((0.5 - point.y() / z / 256) * 2 * M_PI)) - M_PI / 2) * 180 / M_PI;
qreal lon = point.x() / z / 256 * 360.0 - 180.0;
return LatLon(lat, lon);
}