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load new tile if it's marked as obsolete

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This commit is contained in:
Konstantin Käfer
2014-03-06 13:24:14 +01:00
parent af3bae59d6
commit f04f42df8f
1 changed files with 12 additions and 4 deletions
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16
src/map/map.cpp
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@@ -266,11 +266,19 @@ TileData::State Map::addTile(const Tile::ID& id) {
auto it = std::find_if(tile_data.begin(), tile_data.end(), [&normalized_id](const std::weak_ptr<TileData>& tile_data) {
return !tile_data.expired() && tile_data.lock()->id == normalized_id;
});
if (it != tile_data.end() && !it->expired()) {
// There is already a tile data object and it's not yet expired, so we're
// going to reuse it.
if (it != tile_data.end()) {
// Create a shared_ptr handle. Note that this might be empty!
new_tile.data = it->lock();
} else {
}
if (new_tile.data && new_tile.data->state == TileData::State::obsolete) {
// Do not consider the tile if it's already obsolete.
new_tile.data.reset();
}
if (!new_tile.data) {
// If we don't find working tile data, we're just going to load it.
new_tile.data = std::make_shared<TileData>(normalized_id, style);
new_tile.data->request();
tile_data.push_front(new_tile.data);