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Re-introduce the zoom level offset

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Most Mapsforge themes expect the zoom levels to be offset by one from
the standard OSM zoom levels. Additionally, the rendering is much faster
which always helps when dealing with a format that slow like Mapsforge...
This commit is contained in:
Martin Tůma 2023-08-13 13:00:05 +02:00
parent ab8ab9d731
commit 03711ede97
1 changed files with 6 additions and 2 deletions
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8
src/map/mapsforge/rastertile.h
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@ -14,13 +14,17 @@ namespace Mapsforge {
class RasterTile
{
public:
/* Most Mapsforge themes expect the zoom levels to be offset by one from
the standard OSM zoom levels! We decrease the zoom level internaly
here when initializing _zoom and return the propper (increased) value
back in zoom() */
RasterTile(const Projection &proj, const Transform &transform,
const Style *style, MapData *data, int zoom, const QRect &rect,
qreal ratio) : _proj(proj), _transform(transform), _style(style),
_data(data), _zoom(zoom), _rect(rect), _ratio(ratio),
_data(data), _zoom(zoom - 1), _rect(rect), _ratio(ratio),
_pixmap(rect.width() * ratio, rect.height() * ratio), _valid(false) {}
int zoom() const {return _zoom;}
int zoom() const {return _zoom + 1;}
QPoint xy() const {return _rect.topLeft();}
const QPixmap &pixmap() const {return _pixmap;}
bool isValid() const {return _valid;}