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// SPDX-License-Identifier: MIT OR MPL-2.0 OR LGPL-2.1-or-later OR GPL-2.0-or-later
// Copyright 2010, SIL International, All rights reserved.
#pragma once
#include "graphite2/Types.h"
#include "graphite2/Segment.h"
#include "inc/Main.h"
#include "inc/Font.h"
#include "inc/Position.h"
namespace graphite2 {
typedef gr_attrCode attrCode;
class GlyphFace;
class Segment;
struct SlotJustify
{
static const int NUMJUSTPARAMS = 5;
SlotJustify(const SlotJustify &);
SlotJustify & operator = (const SlotJustify &);
public:
static size_t size_of(size_t levels) { return sizeof(SlotJustify) + ((levels > 1 ? levels : 1)*NUMJUSTPARAMS - 1)*sizeof(int16); }
void LoadSlot(const Slot *s, const Segment *seg);
SlotJustify *next;
int16 values[1];
};
class Slot
{
enum Flag
{
DELETED = 1,
INSERTED = 2,
COPIED = 4,
POSITIONED = 8,
ATTACHED = 16
};
public:
struct iterator;
unsigned short gid() const { return m_glyphid; }
Position origin() const { return m_position; }
float advance() const { return m_advance.x; }
void advance(Position &val) { m_advance = val; }
Position advancePos() const { return m_advance; }
int before() const { return m_before; }
int after() const { return m_after; }
uint32 index() const { return m_index; }
void index(uint32 val) { m_index = val; }
Slot(int16 *m_userAttr = NULL);
void set(const Slot & slot, int charOffset, size_t numUserAttr, size_t justLevels, size_t numChars);
Slot *next() const { return m_next; }
void next(Slot *s) { m_next = s; }
Slot *prev() const { return m_prev; }
void prev(Slot *s) { m_prev = s; }
uint16 glyph() const { return m_realglyphid ? m_realglyphid : m_glyphid; }
void setGlyph(Segment *seg, uint16 glyphid, const GlyphFace * theGlyph = NULL);
void setRealGid(uint16 realGid) { m_realglyphid = realGid; }
void adjKern(const Position &pos) { m_shift = m_shift + pos; m_advance = m_advance + pos; }
void origin(const Position &pos) { m_position = pos + m_shift; }
void originate(int ind) { m_original = ind; }
int original() const { return m_original; }
void before(int ind) { m_before = ind; }
void after(int ind) { m_after = ind; }
bool isBase() const { return (!m_parent); }
void update(int numSlots, int numCharInfo, Position &relpos);
Position finalise(const Segment* seg, const Font* font, Position & base, Rect & bbox, uint8 attrLevel, float & clusterMin, bool rtl, bool isFinal, int depth = 0);
bool isDeleted() const { return (m_flags & DELETED) ? true : false; }
void markDeleted(bool state) { if (state) m_flags |= DELETED; else m_flags &= ~DELETED; }
bool isCopied() const { return (m_flags & COPIED) ? true : false; }
void markCopied(bool state) { if (state) m_flags |= COPIED; else m_flags &= ~COPIED; }
bool isPositioned() const { return (m_flags & POSITIONED) ? true : false; }
void markPositioned(bool state) { if (state) m_flags |= POSITIONED; else m_flags &= ~POSITIONED; }
bool isInsertBefore() const { return !(m_flags & INSERTED); }
uint8 getBidiLevel() const { return m_bidiLevel; }
void setBidiLevel(uint8 level) { m_bidiLevel = level; }
int8 getBidiClass(const Segment *seg);
int8 getBidiClass() const { return m_bidiCls; }
void setBidiClass(int8 cls) { m_bidiCls = cls; }
int16 *userAttrs() const { return m_userAttr; }
void userAttrs(int16 *p) { m_userAttr = p; }
void markInsertBefore(bool state) { if (!state) m_flags |= INSERTED; else m_flags &= ~INSERTED; }
void setAttr(Segment* seg, attrCode ind, uint8 subindex, int16 val, const SlotMap & map);
int getAttr(const Segment *seg, attrCode ind, uint8 subindex) const;
int getJustify(const Segment *seg, uint8 level, uint8 subindex) const;
void setJustify(Segment *seg, uint8 level, uint8 subindex, int16 value);
bool isLocalJustify() const { return m_justs != NULL; };
void attachTo(Slot *ap) { m_parent = ap; }
Slot *attachedTo() const { return m_parent; }
Position attachOffset() const { return m_attach - m_with; }
Slot* firstChild() const { return m_child; }
void firstChild(Slot *ap) { m_child = ap; }
bool child(Slot *ap);
Slot* nextSibling() const { return m_sibling; }
void nextSibling(Slot *ap) { m_sibling = ap; }
bool sibling(Slot *ap);
bool removeChild(Slot *ap);
int32 clusterMetric(const Segment* seg, uint8 metric, uint8 attrLevel, bool rtl);
void positionShift(Position a) { m_position += a; }
void floodShift(Position adj, int depth = 0);
float just() const { return m_just; }
void just(float j) { m_just = j; }
Slot *nextInCluster(const Slot *s) const;
bool isChildOf(const Slot *base) const;
CLASS_NEW_DELETE
private:
Slot *m_next; // linked list of slots
Slot *m_prev;
unsigned short m_glyphid; // glyph id
uint16 m_realglyphid;
uint32 m_original; // charinfo that originated this slot (e.g. for feature values)
uint32 m_before; // charinfo index of before association
uint32 m_after; // charinfo index of after association
uint32 m_index; // slot index given to this slot during finalising
Slot *m_parent; // index to parent we are attached to
Slot *m_child; // index to first child slot that attaches to us
Slot *m_sibling; // index to next child that attaches to our parent
Position m_position; // absolute position of glyph
Position m_shift; // .shift slot attribute
Position m_advance; // .advance slot attribute
Position m_attach; // attachment point on us
Position m_with; // attachment point position on parent
float m_just; // Justification inserted space
uint8 m_flags; // holds bit flags
byte m_attLevel; // attachment level
int8 m_bidiCls; // bidirectional class
byte m_bidiLevel; // bidirectional level
int16 *m_userAttr; // pointer to user attributes
SlotJustify *m_justs; // pointer to justification parameters
friend class Segment;
};
} // namespace graphite2
struct gr_slot : public graphite2::Slot {};
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