void Segment::associateChars(int offset, int numChars)
{
int i = 0, j = 0;
CharInfo *c, *cend;
for (c = m_charinfo + offset, cend = m_charinfo + offset + numChars; c != cend; ++c)
{
c->before(-1);
c->after(-1);
}
for (Slot * s = m_first; s; s->index(i++), s = s->next())
{
j = s->before();
if (j < 0) continue;
for (const int after = s->after(); j <= after; ++j)
{
c = charinfo(j);
if (c->before() == -1 || i < c->before()) c->before(i);
if (c->after() < i) c->after(i);
}
}
for (Slot *s = m_first; s; s = s->next())
{
int a;
for (a = s->after() + 1; a < offset + numChars && charinfo(a)->after() < 0; ++a)
{ charinfo(a)->after(s->index()); }
--a;
s->after(a);
for (a = s->before() - 1; a >= offset && charinfo(a)->before() < 0; --a)
{ charinfo(a)->before(s->index()); }
++a;
s->before(a);
}
}
SegCacheEntry::SegCacheEntry(const uint16* cmapGlyphs, size_t length, Segment * seg, size_t charOffset, long long cacheTime)
: m_glyphLength(0), m_unicode(gralloc<uint16>(length)), m_glyph(NULL),
m_attr(NULL), m_justs(NULL),
m_accessCount(0), m_lastAccess(cacheTime)
{
if (m_unicode)
for (uint16 i = 0; i < length; i++)
m_unicode[i] = cmapGlyphs[i];
const size_t glyphCount = seg->slotCount(),
sizeof_sjust = SlotJustify::size_of(seg->silf()->numJustLevels());
if (!glyphCount) return;
size_t num_justs = 0,
justs_pos = 0;
if (seg->hasJustification())
{
for (const Slot * s = seg->first(); s; s = s->next())
{
if (s->m_justs == 0) continue;
++num_justs;
}
m_justs = gralloc<byte>(sizeof_sjust * num_justs);
}
const Slot * slot = seg->first();
m_glyph = new Slot[glyphCount];
m_attr = gralloc<int16>(glyphCount * seg->numAttrs());
if (!m_glyph || (!m_attr && seg->numAttrs())) return;
m_glyphLength = glyphCount;
Slot * slotCopy = m_glyph;
m_glyph->prev(NULL);
uint16 pos = 0;
while (slot)
{
slotCopy->userAttrs(m_attr + pos * seg->numAttrs());
slotCopy->m_justs = m_justs ? reinterpret_cast<SlotJustify *>(m_justs + justs_pos++ * sizeof_sjust) : 0;
slotCopy->set(*slot, -static_cast<int32>(charOffset), seg->numAttrs(), seg->silf()->numJustLevels(), length);
slotCopy->index(pos);
if (slot->firstChild())
slotCopy->m_child = m_glyph + slot->firstChild()->index();
if (slot->attachedTo())
slotCopy->attachTo(m_glyph + slot->attachedTo()->index());
if (slot->nextSibling())
slotCopy->m_sibling = m_glyph + slot->nextSibling()->index();
slot = slot->next();
++slotCopy;
++pos;
if (slot)
{
slotCopy->prev(slotCopy-1);
(slotCopy-1)->next(slotCopy);
}
}
}
bool Segment::initCollisions()
{
m_collisions = grzeroalloc<SlotCollision>(slotCount());
if (!m_collisions) return false;
for (Slot *p = m_first; p; p = p->next())
if (p->index() < slotCount())
::new (collisionInfo(p)) SlotCollision(this, p);
else
return false;
return true;
}