361982fef8
`LayerManager` is now responsible for `RenderLayer` instances creation, so that there is a single entry point for creating of objects, which correspond to a certain layer type. The `LayerType type` field is dropped from `Layer::Impl`.
77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
#include <mbgl/renderer/render_layer.hpp>
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#include <mbgl/renderer/layers/render_background_layer.hpp>
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#include <mbgl/renderer/layers/render_circle_layer.hpp>
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#include <mbgl/renderer/layers/render_custom_layer.hpp>
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#include <mbgl/renderer/layers/render_fill_extrusion_layer.hpp>
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#include <mbgl/renderer/layers/render_fill_layer.hpp>
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#include <mbgl/renderer/layers/render_hillshade_layer.hpp>
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#include <mbgl/renderer/layers/render_line_layer.hpp>
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#include <mbgl/renderer/layers/render_raster_layer.hpp>
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#include <mbgl/renderer/layers/render_symbol_layer.hpp>
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#include <mbgl/renderer/layers/render_heatmap_layer.hpp>
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#include <map>
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#include <memory>
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#include <vector>
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namespace mbgl {
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class LayerManagerDefault final : public LayerManager {
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public:
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LayerManagerDefault();
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private:
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void addLayerType(std::unique_ptr<LayerFactory>);
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// LayerManager overrides.
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LayerFactory* getFactory(const std::string& type) noexcept final;
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LayerFactory* getFactory(const style::LayerTypeInfo*) noexcept final;
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std::vector<std::unique_ptr<LayerFactory>> factories;
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std::map<std::string, LayerFactory*> typeToFactory;
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};
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LayerManagerDefault::LayerManagerDefault() {
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addLayerType(std::make_unique<FillLayerFactory>());
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addLayerType(std::make_unique<LineLayerFactory>());
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addLayerType(std::make_unique<CircleLayerFactory>());
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addLayerType(std::make_unique<SymbolLayerFactory>());
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addLayerType(std::make_unique<RasterLayerFactory>());
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addLayerType(std::make_unique<BackgroundLayerFactory>());
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addLayerType(std::make_unique<HillshadeLayerFactory>());
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addLayerType(std::make_unique<FillExtrusionLayerFactory>());
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addLayerType(std::make_unique<HeatmapLayerFactory>());
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addLayerType(std::make_unique<CustomLayerFactory>());
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}
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void LayerManagerDefault::addLayerType(std::unique_ptr<LayerFactory> factory) {
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std::string type{factory->getTypeInfo()->type};
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if (!type.empty()) {
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typeToFactory.emplace(std::make_pair(std::move(type), factory.get()));
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}
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factories.emplace_back(std::move(factory));
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}
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LayerFactory* LayerManagerDefault::getFactory(const mbgl::style::LayerTypeInfo* typeInfo) noexcept {
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assert(typeInfo);
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for (const auto& factory: factories) {
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if (factory->getTypeInfo() == typeInfo) {
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return factory.get();
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}
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}
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assert(false);
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return nullptr;
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}
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LayerFactory* LayerManagerDefault::getFactory(const std::string& type) noexcept {
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auto search = typeToFactory.find(type);
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return (search != typeToFactory.end()) ? search->second : nullptr;
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}
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// static
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LayerManager* LayerManager::get() noexcept {
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static LayerManagerDefault instance;
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return &instance;
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}
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} // namespace mbgl
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