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Fixed broken zoom 0 handling

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Fixes #151
This commit is contained in:
Martin Tůma 2018-09-09 09:41:04 +02:00
parent d9e025a18c
commit a8d183639e
1 changed files with 5 additions and 3 deletions
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8
src/map/onlinemap.cpp
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@ -129,6 +129,7 @@ qreal OnlineMap::tileSize() const
void OnlineMap::draw(QPainter *painter, const QRectF &rect, Flags flags)
{
qreal scale = zoom2scale(_zoom);
QRectF b(bounds());
QPoint tile = mercator2tile(QPointF(rect.topLeft().x() * scale,
-rect.topLeft().y() * scale) * coordinatesRatio(), _zoom);
@ -136,7 +137,8 @@ void OnlineMap::draw(QPainter *painter, const QRectF &rect, Flags flags)
* tileSize(), floor(rect.top() / tileSize()) * tileSize());
QList<Tile> tiles;
QSizeF s(rect.right() - tl.x(), rect.bottom() - tl.y());
QSizeF s(qMin(rect.right() - tl.x(), b.width()),
qMin(rect.bottom() - tl.y(), b.height()));
for (int i = 0; i < ceil(s.width() / tileSize()); i++)
for (int j = 0; j < ceil(s.height() / tileSize()); j++)
tiles.append(Tile(QPoint(tile.x() + i, tile.y() + j), _zoom));
@ -148,8 +150,8 @@ void OnlineMap::draw(QPainter *painter, const QRectF &rect, Flags flags)
for (int i = 0; i < tiles.count(); i++) {
Tile &t = tiles[i];
QPointF tp(tl.x() + (t.xy().x() - tile.x()) * tileSize(),
tl.y() + (t.xy().y() - tile.y()) * tileSize());
QPointF tp(qMax(tl.x(), b.left()) + (t.xy().x() - tile.x()) * tileSize(),
qMax(tl.y(), b.top()) + (t.xy().y() - tile.y()) * tileSize());
if (!t.pixmap().isNull()) {
#ifdef ENABLE_HIDPI
t.pixmap().setDevicePixelRatio(imageRatio());