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#ifndef LLMR_STYLE_STYLE
#define LLMR_STYLE_STYLE
#include <cstdint>
#include <llmr/util/pbf.hpp>
#include <llmr/style/bucket_description.hpp>
#include <llmr/style/layer_description.hpp>
#include <llmr/style/class_description.hpp>
#include <llmr/geometry/sprite_atlas.hpp>
#include <llmr/util/transition.hpp>
#include <llmr/util/uv.hpp>
#include <map>
#include <unordered_map>
#include <vector>
#include <set>
#include <memory>
namespace llmr {
class Sprite;
class Style {
public:
struct exception : std::runtime_error { exception(const char *msg) : std::runtime_error(msg) {} };
public:
Style();
void reset();
void loadJSON(const uint8_t *const data, size_t bytes);
size_t layerCount() const;
void cascade(float z);
bool needsTransition() const;
void updateTransitions(time now);
void cancelTransitions();
void setDefaultTransitionDuration(uint64_t duration = 0);
public:
std::shared_ptr<Sprite> sprite;
// This is static information parsed from the stylesheet.
std::map<std::string, BucketDescription> buckets;
std::vector<LayerDescription> layers;
std::map<std::string, ClassDescription> classes;
// Currently applied settings.
std::set<std::string> appliedClasses;
struct {
BackgroundProperties background;
std::unordered_map<std::string, FillProperties> fills;
std::unordered_map<std::string, LineProperties> lines;
std::unordered_map<std::string, IconProperties> icons;
std::unordered_map<std::string, TextProperties> texts;
std::unordered_map<std::string, RasterProperties> rasters;
std::unordered_map<std::string, CompositeProperties> composites;
std::unordered_map<std::string, std::unordered_map<TransitionablePropertyKey, std::string>> effective_classes;
} computed;
private:
bool transitionInProgress(std::string layer_name, TransitionablePropertyKey key);
bool transitionExists(std::string layer_name, TransitionablePropertyKey key);
bool inNeedOfTransition(std::string layer_name, TransitionablePropertyKey key);
uint64_t transitionDuration(std::string layer_name, TransitionablePropertyKey key);
uint64_t transitionDelay(std::string layer_name, TransitionablePropertyKey key);
void cascadeProperties(GenericProperties &properties, const GenericClass& klass, const std::string& layer_name, const std::string& class_name, float z);
private:
// Last applied settings.
struct {
BackgroundProperties background;
std::unordered_map<std::string, FillProperties> fills;
std::unordered_map<std::string, LineProperties> lines;
std::unordered_map<std::string, IconProperties> icons;
std::unordered_map<std::string, TextProperties> texts;
std::unordered_map<std::string, RasterProperties> rasters;
std::unordered_map<std::string, CompositeProperties> composites;
std::unordered_map<std::string, std::unordered_map<TransitionablePropertyKey, std::string>> effective_classes;
} previous;
// Settings values currently being transitioned.
struct {
BackgroundProperties background;
std::unordered_map<std::string, FillProperties> fills;
std::unordered_map<std::string, LineProperties> lines;
std::unordered_map<std::string, IconProperties> icons;
std::unordered_map<std::string, TextProperties> texts;
std::unordered_map<std::string, RasterProperties> rasters;
std::unordered_map<std::string, CompositeProperties> composites;
} transitioning;
std::unordered_map<std::string, std::unordered_map<TransitionablePropertyKey, PropertyTransition>> properties_to_transition;
std::unordered_map<std::string, std::unordered_map<TransitionablePropertyKey, std::shared_ptr<util::transition>>> transitions;
uint64_t default_transition_duration = 0;
bool initial_render_complete = false;
mutable uv::rwlock mtx;
};
}
#endif
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