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#ifndef STAR_DIRECTIVES_HPP
#define STAR_DIRECTIVES_HPP
#include "StarImageProcessing.hpp"
#include "StarHash.hpp"
#include "StarDataStream.hpp"
namespace Star {
STAR_CLASS(Directives);
STAR_CLASS(DirectivesGroup);
STAR_EXCEPTION(DirectivesException, StarException);
// Kae: My attempt at reducing memory allocation and per-frame string parsing for extremely long directives
class Directives {
public:
struct Entry {
ImageOperation operation;
String string; // One day, we can make this a string_view pointing to Entry::string.
Entry(ImageOperation&& newOperation, String&& newString);
Entry(ImageOperation const& newOperation, String const& newString);
Entry(Entry const& other);
};
Directives();
Directives(String const& directives);
Directives(String&& directives);
Directives(const char* directives);
Directives(List<Entry>&& entries);
void parse(String const& directives);
String& buildString(String& out) const;
String toString() const;
inline bool empty() const;
inline operator bool() const;
friend DataStream& operator>>(DataStream& ds, Directives& directives);
friend DataStream& operator<<(DataStream& ds, Directives const& directives);
std::shared_ptr<List<Entry> const> entries;
size_t hash = 0;
String string;
};
class DirectivesGroup {
public:
DirectivesGroup();
DirectivesGroup(String const& directives);
DirectivesGroup(String&& directives);
void parseDirectivesIntoLeaf(String const& directives);
inline bool empty() const;
inline operator bool() const;
bool compare(DirectivesGroup const& other) const;
void append(Directives const& other);
void append(List<Directives::Entry>&& entries);
void clear();
DirectivesGroup& operator+=(Directives const& other);
inline String toString() const;
void addToString(String& string) const;
typedef function<void(Directives::Entry const&)> DirectivesCallback;
typedef function<bool(Directives::Entry const&)> AbortableDirectivesCallback;
void forEach(DirectivesCallback callback) const;
bool forEachAbortable(AbortableDirectivesCallback callback) const;
inline Image applyNewImage(const Image& image) const;
void applyExistingImage(Image& image) const;
inline size_t hash() const;
const List<Directives>& list() const;
friend bool operator==(DirectivesGroup const& a, DirectivesGroup const& b);
friend bool operator!=(DirectivesGroup const& a, DirectivesGroup const& b);
friend DataStream& operator>>(DataStream& ds, DirectivesGroup& directives);
friend DataStream& operator<<(DataStream& ds, DirectivesGroup const& directives);
private:
void buildString(String& string, const DirectivesGroup& directives) const;
List<Directives> m_directives;
size_t m_count;
};
template <>
struct hash<DirectivesGroup> {
size_t operator()(DirectivesGroup const& s) const;
};
typedef DirectivesGroup ImageDirectives;
}
#endif
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