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Author SHA1 Message Date
5525ba6e8c Code cleanup 2023-12-10 08:51:18 +01:00
63d3558b14 Provide the zoom level to QImageReader when fetching the tile size
Although technically not needed here, it workarounds the issue with the broken
Qt SVG imageformat plugin (QTBUG-119910).
2023-12-10 08:46:26 +01:00
3 changed files with 11 additions and 11 deletions

View File

@ -129,15 +129,14 @@ bool MBTilesMap::getBounds()
bool MBTilesMap::getTileSize()
{
QString sql("SELECT tile_data FROM tiles LIMIT 1");
QString sql("SELECT zoom_level, tile_data FROM tiles LIMIT 1");
QSqlQuery query(sql, _db);
query.first();
QByteArray data = query.value(0).toByteArray();
QByteArray z(QByteArray::number(query.value(0).toInt()));
QByteArray data = query.value(1).toByteArray();
QBuffer buffer(&data);
/* Explicitly specify the image plugin in case of vector tiles
(QTBUG-119910 workaround) */
QImageReader reader(&buffer, _scalable ? QByteArray("mvt") : QByteArray());
QImageReader reader(&buffer, z);
QSize tileSize(reader.size());
if (!tileSize.isValid() || tileSize.width() != tileSize.height()) {
@ -217,9 +216,9 @@ MBTilesMap::MBTilesMap(const QString &fileName, QObject *parent)
return;
if (!getBounds())
return;
getTileFormat();
if (!getTileSize())
return;
getTileFormat();
getTilePixelRatio();
getName();

View File

@ -21,10 +21,8 @@ public:
const QPixmap &pixmap() const {return _pixmap;}
void load() {
QByteArray z(QString::number(_zoom).toLatin1());
QBuffer buffer(&_data);
QImageReader reader(&buffer, z);
QImageReader reader(&buffer, QByteArray::number(_zoom));
if (_scaledSize)
reader.setScaledSize(QSize(_scaledSize, _scaledSize));
_pixmap = QPixmap::fromImage(reader.read());

View File

@ -7,6 +7,8 @@
#include "tileloader.h"
#define SUBSTITUTE_CHAR '$'
#define IS_INT(zoom) \
((QMetaType::Type)((zoom).type()) == QMetaType::Int)
class TileImage
{
@ -18,7 +20,8 @@ public:
void load()
{
QImage img;
QByteArray z(_tile->zoom().toString().toLatin1());
QByteArray z(IS_INT(_tile->zoom())
? QByteArray::number(_tile->zoom().toInt()) : QByteArray());
QImageReader reader(_file, z);
if (_scaledSize)
reader.setScaledSize(QSize(_scaledSize, _scaledSize));
@ -220,7 +223,7 @@ QUrl TileLoader::tileUrl(const FetchTile &tile) const
QString TileLoader::tileFile(const FetchTile &tile) const
{
QString zoom(((QMetaType::Type)(tile.zoom().type()) == QMetaType::Int)
QString zoom(IS_INT(tile.zoom())
? tile.zoom().toString() : fsSafeStr(tile.zoom().toString()));
return _dir + QLatin1Char('/') + zoom + QLatin1Char('-')