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Improved mapsforge hi-dpi rendering

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This commit is contained in:
Martin Tůma
2021-04-18 12:20:07 +02:00
parent b6add991d2
commit 663859ef1c
11 changed files with 114 additions and 81 deletions
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22
src/map/mapsforgemap.cpp
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@ -21,7 +21,8 @@ static int log2i(unsigned val)
}
MapsforgeMap::MapsforgeMap(const QString &fileName, QObject *parent)
: Map(fileName, parent), _data(fileName), _zoom(0), _projection(PCS::pcs(3857))
: Map(fileName, parent), _data(fileName), _zoom(0),
_projection(PCS::pcs(3857)), _tileRatio(1.0)
{
_zoom = _data.zooms().min();
updateTransform();
@ -147,9 +148,10 @@ void MapsforgeMap::draw(QPainter *painter, const QRectF &rect, Flags flags)
if (isRunning(key))
continue;
if (QPixmapCache::find(key, &pm))
if (QPixmapCache::find(key, &pm)) {
pm.setDevicePixelRatio(_tileRatio);
painter->drawPixmap(ttl, pm);
else {
} else {
QList<MapData::Path> paths;
QList<MapData::Point> points;
@ -170,11 +172,12 @@ void MapsforgeMap::draw(QPainter *painter, const QRectF &rect, Flags flags)
pointRect &= _bounds;
RectD pointRectD(_transform.img2proj(pointRect.topLeft()),
_transform.img2proj(pointRect.bottomRight()));
_data.points(pointRectD.toRectC(_projection, 20), _zoom, &points);
_data.points(pointRectD.toRectC(_projection, 20), _zoom,
&points);
tiles.append(RasterTile(_projection, _transform, _zoom,
QRect(ttl, QSize(_data.tileSize(), _data.tileSize())), key,
paths, points));
QRect(ttl, QSize(_data.tileSize(), _data.tileSize())),
_tileRatio, key, paths, points));
}
}
}
@ -188,6 +191,13 @@ void MapsforgeMap::draw(QPainter *painter, const QRectF &rect, Flags flags)
}
}
void MapsforgeMap::setDevicePixelRatio(qreal deviceRatio, qreal mapRatio)
{
Q_UNUSED(mapRatio);
_tileRatio = deviceRatio;
}
void MapsforgeMap::setOutputProjection(const Projection &projection)
{
if (projection == _projection)