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#pragma once
#include <mbgl/util/variant.hpp>
#include <mbgl/style/layer_impl.hpp>
#include <mbgl/style/layers/symbol_layer.hpp>
#include <mbgl/style/layers/symbol_layer_properties.hpp>
namespace mbgl {
class SpriteAtlas;
class SymbolLayout;
namespace style {
// {icon,text}-specific paint-property packs for use in the symbol Programs.
// Since each program deals either with icons or text, using a smaller property set
// lets us avoid unnecessarily binding attributes for properties the program wouldn't use.
class IconPaintProperties : public PaintProperties<
IconOpacity,
IconColor,
IconHaloColor,
IconHaloWidth,
IconHaloBlur,
IconTranslate,
IconTranslateAnchor
> {};
class TextPaintProperties : public PaintProperties<
TextOpacity,
TextColor,
TextHaloColor,
TextHaloWidth,
TextHaloBlur,
TextTranslate,
TextTranslateAnchor
> {};
// Repackaging evaluated values from SymbolLayoutProperties + SymbolPaintProperties
// for genericity over icons vs. text.
class SymbolPropertyValues {
public:
// Layout
AlignmentType pitchAlignment;
AlignmentType rotationAlignment;
float layoutSize;
// Paint
std::array<float, 2> translate;
TranslateAnchorType translateAnchor;
float paintSize;
float sdfScale; // Constant (1.0 or 24.0)
bool hasHalo;
bool hasFill;
};
class SymbolLayer::Impl : public Layer::Impl {
public:
std::unique_ptr<Layer> clone() const override;
std::unique_ptr<Layer> cloneRef(const std::string& id) const override;
void stringifyLayout(rapidjson::Writer<rapidjson::StringBuffer>&) const override;
void cascade(const CascadeParameters&) override;
bool evaluate(const PropertyEvaluationParameters&) override;
std::unique_ptr<Bucket> createBucket(const BucketParameters&, const std::vector<const Layer*>&) const override;
std::unique_ptr<SymbolLayout> createLayout(const BucketParameters&, const std::vector<const Layer*>&,
const GeometryTileLayer&) const;
IconPaintProperties::Evaluated iconPaintProperties() const;
TextPaintProperties::Evaluated textPaintProperties() const;
SymbolPropertyValues iconPropertyValues(const SymbolLayoutProperties::Evaluated&) const;
SymbolPropertyValues textPropertyValues(const SymbolLayoutProperties::Evaluated&) const;
SymbolLayoutProperties layout;
SymbolPaintProperties paint;
float iconSize = 1.0f;
float textSize = 16.0f;
SpriteAtlas* spriteAtlas = nullptr;
};
} // namespace style
} // namespace mbgl
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