/* TODO: relative2coord could be split off this */
void SlippyMapWidget::makeSelection(const QRect& relative) {
/* Compute viewport boundingbox */
qreal X1 = p->Lon - (width()/2.0)/TILESIZE;
qreal Y1 = p->Lat - (height()/2.0)/TILESIZE;
qreal X2 = p->Lon + (width()/2.0)/TILESIZE;
qreal Y2 = p->Lat + (height()/2.0)/TILESIZE;
/* Actual difference per pixel */
qreal xpixel = (X2-X1)/width();
qreal ypixel = (Y2-Y1)/height();
/* Shift the border according to relative */
X1 += xpixel * relative.topLeft().x();
Y1 += ypixel * relative.topLeft().y();
X2 -= xpixel * (width() - relative.bottomRight().x());
Y2 -= ypixel * (height() - relative.bottomRight().y());
qreal Lon1 = tile2lon(X1, p->Zoom);
qreal Lat1 = tile2lat(Y1, p->Zoom);
qreal Lon2 = tile2lon(X2, p->Zoom);
qreal Lat2 = tile2lat(Y2, p->Zoom);
/* Save the selection */
p->CurrentSelectionCoord = QRectF(Lon1, Lat2, Lon2-Lon1, Lat1-Lat2);
qDebug() << "Selection rectangle: " << p->CurrentSelectionCoord;
}
QRectF SlippyMapWidget::viewArea() const
{
qreal X1 = p->Lat - (width()/2.0)/TILESIZE;
qreal Y1 = p->Lon - (height()/2.0)/TILESIZE;
qreal X2 = p->Lat + (width()/2.0)/TILESIZE;
qreal Y2 = p->Lon + (height()/2.0)/TILESIZE;
qreal Lon1 = tile2lon(X1, p->Zoom);
qreal Lat1 = tile2lat(Y1, p->Zoom);
qreal Lon2 = tile2lon(X2, p->Zoom);
qreal Lat2 = tile2lat(Y2, p->Zoom);
return QRectF(Lon1, Lat2, Lon2-Lon1, Lat1-Lat2);
}
