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#pragma once
#include <mbgl/text/quads.hpp>
#include <mbgl/text/glyph_atlas.hpp>
#include <mbgl/text/collision_feature.hpp>
#include <mbgl/style/layers/symbol_layer_properties.hpp>
#include <mbgl/util/bitmask_operations.hpp>
namespace mbgl {
class Anchor;
class IndexedSubfeature;
struct ShapedTextOrientations {
Shaping horizontal;
Shaping vertical;
// The following are used with variable text placement on.
Shaping& right = horizontal;
Shaping center;
Shaping left;
bool singleLine = false;
};
enum class SymbolContent : uint8_t { None = 0, Text = 1 << 0, IconRGBA = 1 << 1, IconSDF = 1 << 2 };
struct SymbolInstanceSharedData {
SymbolInstanceSharedData(GeometryCoordinates line,
const ShapedTextOrientations& shapedTextOrientations,
const optional<PositionedIcon>& shapedIcon,
const optional<PositionedIcon>& verticallyShapedIcon,
const style::SymbolLayoutProperties::Evaluated& layout,
const style::SymbolPlacementType textPlacement,
const std::array<float, 2>& textOffset,
const ImageMap& imageMap,
float iconRotation,
SymbolContent iconType,
bool hasIconTextFit,
bool allowVerticalPlacement);
bool empty() const;
GeometryCoordinates line;
// Note: When singleLine == true, only `rightJustifiedGlyphQuads` is populated.
SymbolQuads rightJustifiedGlyphQuads;
SymbolQuads centerJustifiedGlyphQuads;
SymbolQuads leftJustifiedGlyphQuads;
SymbolQuads verticalGlyphQuads;
optional<SymbolQuads> iconQuads;
optional<SymbolQuads> verticalIconQuads;
};
class SymbolInstance {
public:
SymbolInstance(Anchor& anchor_,
std::shared_ptr<SymbolInstanceSharedData> sharedData,
const ShapedTextOrientations& shapedTextOrientations,
const optional<PositionedIcon>& shapedIcon,
const optional<PositionedIcon>& verticallyShapedIcon,
const float textBoxScale,
const float textPadding,
const style::SymbolPlacementType textPlacement,
const std::array<float, 2>& textOffset,
const float iconBoxScale,
const float iconPadding,
const std::array<float, 2>& iconOffset,
const IndexedSubfeature& indexedFeature,
const std::size_t layoutFeatureIndex,
const std::size_t dataFeatureIndex,
std::u16string key,
const float overscaling,
const float iconRotation,
const float textRotation,
const std::array<float, 2>& variableTextOffset,
bool allowVerticalPlacement,
const SymbolContent iconType = SymbolContent::None);
optional<size_t> getDefaultHorizontalPlacedTextIndex() const;
const GeometryCoordinates& line() const;
const SymbolQuads& rightJustifiedGlyphQuads() const;
const SymbolQuads& leftJustifiedGlyphQuads() const;
const SymbolQuads& centerJustifiedGlyphQuads() const;
const SymbolQuads& verticalGlyphQuads() const;
bool hasText() const;
bool hasIcon() const;
bool hasSdfIcon() const;
const optional<SymbolQuads>& iconQuads() const;
const optional<SymbolQuads>& verticalIconQuads() const;
void releaseSharedData();
private:
std::shared_ptr<SymbolInstanceSharedData> sharedData;
public:
Anchor anchor;
SymbolContent symbolContent;
std::size_t rightJustifiedGlyphQuadsSize;
std::size_t centerJustifiedGlyphQuadsSize;
std::size_t leftJustifiedGlyphQuadsSize;
std::size_t verticalGlyphQuadsSize;
std::size_t iconQuadsSize;
CollisionFeature textCollisionFeature;
CollisionFeature iconCollisionFeature;
optional<CollisionFeature> verticalTextCollisionFeature = nullopt;
optional<CollisionFeature> verticalIconCollisionFeature = nullopt;
WritingModeType writingModes;
std::size_t layoutFeatureIndex; // Index into the set of features included at layout time
std::size_t dataFeatureIndex; // Index into the underlying tile data feature set
std::array<float, 2> textOffset;
std::array<float, 2> iconOffset;
std::u16string key;
bool isDuplicate;
optional<size_t> placedRightTextIndex;
optional<size_t> placedCenterTextIndex;
optional<size_t> placedLeftTextIndex;
optional<size_t> placedVerticalTextIndex;
optional<size_t> placedIconIndex;
optional<size_t> placedVerticalIconIndex;
float textBoxScale;
std::array<float, 2> variableTextOffset;
bool singleLine;
uint32_t crossTileID = 0;
static constexpr uint32_t invalidCrossTileID() { return std::numeric_limits<uint32_t>::max(); }
};
using SymbolInstanceReferences = std::vector<std::reference_wrapper<const SymbolInstance>>;
} // namespace mbgl
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