36 lines
1.3 KiB
C++
36 lines
1.3 KiB
C++
#pragma once
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#include <mbgl/map/camera.hpp>
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#include <mbgl/util/geo.hpp>
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namespace mbgl {
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class UpdateParameters;
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/**
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* RendererState acts as a Memento object that is able to extract data out of
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* UpdateParameters (an opaque object from the public API perspective).
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*/
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class RendererState {
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public:
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/// Obtains a CameraOptions out of a given UpdateParameters object.
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static CameraOptions getCameraOptions(const UpdateParameters&, const EdgeInsets& = {});
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/// Returns whether an image with the given ID exists from a given UpdateParamters object.
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static bool hasImage(const UpdateParameters&, const std::string& id);
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/// Returns whether a layer with the given ID exists from a given UpdateParamters object.
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static bool hasLayer(const UpdateParameters&, const std::string& id);
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/// Returns whether a source with the given ID exists from a given UpdateParamters object.
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static bool hasSource(const UpdateParameters&, const std::string& id);
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/// Obtains the geographical coordinate out of a given screen coordinate.
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static ScreenCoordinate pixelForLatLng(const UpdateParameters&, const LatLng&);
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/// Obtains the screen coordinate out of a given geographical coordinate.
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static LatLng latLngForPixel(const UpdateParameters&, const ScreenCoordinate&);
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};
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} // namespace mbgl
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