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#include <mbgl/style/layers/symbol_layer_impl.hpp>
#include <mbgl/style/property_evaluation_parameters.hpp>
#include <mbgl/layout/symbol_layout.hpp>
#include <mbgl/renderer/bucket.hpp>
namespace mbgl {
namespace style {
void SymbolLayer::Impl::cascade(const CascadeParameters& parameters) {
paint.cascade(parameters);
}
bool SymbolLayer::Impl::evaluate(const PropertyEvaluationParameters& parameters) {
paint.evaluate(parameters);
// text-size and icon-size are layout properties but they also need to be evaluated as paint properties:
iconSize = layout.evaluate<IconSize>(parameters);
textSize = layout.evaluate<TextSize>(parameters);
auto hasIconOpacity = paint.evaluated.get<IconColor>().constantOr(Color::black()).a > 0 ||
paint.evaluated.get<IconHaloColor>().constantOr(Color::black()).a > 0;
auto hasTextOpacity = paint.evaluated.get<TextColor>().constantOr(Color::black()).a > 0 ||
paint.evaluated.get<TextHaloColor>().constantOr(Color::black()).a > 0;
passes = ((paint.evaluated.get<IconOpacity>().constantOr(1) > 0 && hasIconOpacity && iconSize > 0)
|| (paint.evaluated.get<TextOpacity>().constantOr(1) > 0 && hasTextOpacity && textSize > 0))
? RenderPass::Translucent : RenderPass::None;
return paint.hasTransition();
}
std::unique_ptr<Bucket> SymbolLayer::Impl::createBucket(const BucketParameters&, const std::vector<const Layer*>&) const {
assert(false); // Should be calling createLayout() instead.
return nullptr;
}
std::unique_ptr<SymbolLayout> SymbolLayer::Impl::createLayout(const BucketParameters& parameters,
const std::vector<const Layer*>& group,
const GeometryTileLayer& layer) const {
return std::make_unique<SymbolLayout>(parameters,
group,
layer,
*spriteAtlas);
}
IconPaintProperties::Evaluated SymbolLayer::Impl::iconPaintProperties() const {
return IconPaintProperties::Evaluated {
paint.evaluated.get<IconOpacity>(),
paint.evaluated.get<IconColor>(),
paint.evaluated.get<IconHaloColor>(),
paint.evaluated.get<IconHaloWidth>(),
paint.evaluated.get<IconHaloBlur>(),
paint.evaluated.get<IconTranslate>(),
paint.evaluated.get<IconTranslateAnchor>()
};
}
TextPaintProperties::Evaluated SymbolLayer::Impl::textPaintProperties() const {
return TextPaintProperties::Evaluated {
paint.evaluated.get<TextOpacity>(),
paint.evaluated.get<TextColor>(),
paint.evaluated.get<TextHaloColor>(),
paint.evaluated.get<TextHaloWidth>(),
paint.evaluated.get<TextHaloBlur>(),
paint.evaluated.get<TextTranslate>(),
paint.evaluated.get<TextTranslateAnchor>()
};
}
SymbolPropertyValues SymbolLayer::Impl::iconPropertyValues(const SymbolLayoutProperties::Evaluated& layout_) const {
return SymbolPropertyValues {
layout_.get<IconRotationAlignment>(), // icon-pitch-alignment is not yet implemented; inherit the rotation alignment
layout_.get<IconRotationAlignment>(),
layout_.get<IconSize>(),
paint.evaluated.get<IconTranslate>(),
paint.evaluated.get<IconTranslateAnchor>(),
iconSize,
1.0f,
paint.evaluated.get<IconHaloColor>().constantOr(Color::black()).a > 0 &&
paint.evaluated.get<IconHaloWidth>().constantOr(1),
paint.evaluated.get<IconColor>().constantOr(Color::black()).a > 0
};
}
SymbolPropertyValues SymbolLayer::Impl::textPropertyValues(const SymbolLayoutProperties::Evaluated& layout_) const {
return SymbolPropertyValues {
layout_.get<TextPitchAlignment>(),
layout_.get<TextRotationAlignment>(),
layout_.get<TextSize>(),
paint.evaluated.get<TextTranslate>(),
paint.evaluated.get<TextTranslateAnchor>(),
textSize,
24.0f,
paint.evaluated.get<TextHaloColor>().constantOr(Color::black()).a > 0 &&
paint.evaluated.get<TextHaloWidth>().constantOr(1),
paint.evaluated.get<TextColor>().constantOr(Color::black()).a > 0
};
}
} // namespace style
} // namespace mbgl
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