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author | Ivo van Dongen <info@ivovandongen.nl> | 2017-05-29 14:13:52 +0300 |
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committer | Ivo van Dongen <ivovandongen@users.noreply.github.com> | 2017-05-30 13:07:03 +0300 |
commit | 005dc6d122d5ae0c8d20d2f7297649d2bbae9ac8 (patch) | |
tree | f4012a6af2af5ded570bee4c530e66dd4a306f7b /src/mbgl/style | |
parent | ff3dc29ffd371227a0013ed14176d5c5d6d96b0b (diff) | |
download | qtlocation-mapboxgl-005dc6d122d5ae0c8d20d2f7297649d2bbae9ac8.tar.gz |
[core] check source usage before remove
Diffstat (limited to 'src/mbgl/style')
-rw-r--r-- | src/mbgl/style/style.cpp | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/mbgl/style/style.cpp b/src/mbgl/style/style.cpp index a03a18fdaf..0a212b977f 100644 --- a/src/mbgl/style/style.cpp +++ b/src/mbgl/style/style.cpp @@ -158,7 +158,30 @@ void Style::addSource(std::unique_ptr<Source> source) { sources.emplace_back(std::move(source)); } +struct SourceIdUsageEvaluator { + const std::string& sourceId; + + bool operator()(BackgroundLayer&) { return false; } + bool operator()(CustomLayer&) { return false; } + + template <class LayerType> + bool operator()(LayerType& layer) { + return layer.getSourceID() == sourceId; + } +}; + std::unique_ptr<Source> Style::removeSource(const std::string& id) { + // Check if source is in use + SourceIdUsageEvaluator sourceIdEvaluator {id}; + auto layerIt = std::find_if(layers.begin(), layers.end(), [&](const auto& layer) { + return layer->accept(sourceIdEvaluator); + }); + + if (layerIt != layers.end()) { + Log::Warning(Event::General, "Source '%s' is in use, cannot remove", id.c_str()); + return nullptr; + } + auto it = std::find_if(sources.begin(), sources.end(), [&](const auto& source) { return source->getID() == id; }); |