/*
* Add a UTF8 string as a 4-byte length followed by a non-NULL-terminated
* string.
*
* Because these strings are coming out of the VM, it's safe to assume that
* they can be null-terminated (either they don't have null bytes or they
* have stored null bytes in a multi-byte encoding).
*/
void expandBufAddUtf8String(ExpandBuf *pBuf, const u1 *str) {
int strLen = strlen((const char *) str);
ensureSpace(pBuf, sizeof(u4) + strLen);
setUtf8String(pBuf->storage + pBuf->curLen, str);
pBuf->curLen += sizeof(u4) + strLen;
}
int SP_NKStringBuffer :: append( char c )
{
ensureSpace( 1 );
mImpl->mBuffer[ mImpl->mSize++ ] = c;
mImpl->mBuffer[ mImpl->mSize ] = '\0';
return 0;
}
int SP_JsonStringBuffer :: append( char c )
{
ensureSpace( 1 );
mBuffer[ mSize++ ] = c;
mBuffer[ mSize ] = '\0';
return 0;
}
quint8 IOBuffer::readByte()
{
quint8 num =0;
if (ensureSpace(sizeof(quint8)))
{
num = m_ba.at(m_nCurrentPos);
m_nCurrentPos++;
}
return num;
}
QByteArray IOBuffer::readByteArray(quint32 size)
{
QByteArray ba;
if (ensureSpace(size))
{
ba = m_ba.mid(m_nCurrentPos, size);
m_nCurrentPos += size;
}
return ba;
}
/*
* Allocate some space in the buffer.
*/
u1 *expandBufAddSpace(ExpandBuf *pBuf, int gapSize) {
u1 *gapStart;
ensureSpace(pBuf, gapSize);
gapStart = pBuf->storage + pBuf->curLen;
/* do we want to garbage-fill the gap for debugging? */
pBuf->curLen += gapSize;
return gapStart;
}
void QTextEngine::shape( int item ) const
{
assert( item < items.size() );
QScriptItem &si = items[item];
if ( si.num_glyphs )
return;
QFont::Script script = (QFont::Script)si.analysis.script;
si.glyph_data_offset = used;
if ( !si.fontEngine )
si.fontEngine = fnt->engineForScript( script );
si.fontEngine->ref();
si.ascent = si.fontEngine->ascent();
si.descent = si.fontEngine->descent();
si.num_glyphs = 0;
if ( si.fontEngine && si.fontEngine != (QFontEngine*)-1 ) {
QShaperItem shaper_item;
shaper_item.script = si.analysis.script;
shaper_item.string = &string;
shaper_item.from = si.position;
shaper_item.length = length(item);
shaper_item.font = si.fontEngine;
shaper_item.num_glyphs = QMAX(int(num_glyphs - used), shaper_item.length);
shaper_item.flags = si.analysis.bidiLevel % 2 ? RightToLeft : 0;
while (1) {
// qDebug(" . num_glyphs=%d, used=%d, item.num_glyphs=%d", num_glyphs, used, shaper_item.num_glyphs);
ensureSpace(shaper_item.num_glyphs);
shaper_item.num_glyphs = num_glyphs - used;
// qDebug(" .. num_glyphs=%d, used=%d, item.num_glyphs=%d", num_glyphs, used, shaper_item.num_glyphs);
shaper_item.glyphs = glyphs(&si);
shaper_item.advances = advances(&si);
shaper_item.offsets = offsets(&si);
shaper_item.attributes = glyphAttributes(&si);
shaper_item.log_clusters = logClusters(&si);
if (scriptEngines[shaper_item.script].shape(&shaper_item))
break;
}
si.num_glyphs = shaper_item.num_glyphs;
}
((QTextEngine *)this)->used += si.num_glyphs;
si.width = 0;
advance_t *advances = this->advances( &si );
advance_t *end = advances + si.num_glyphs;
while ( advances < end )
si.width += *(advances++);
return;
}
quint16 IOBuffer::readUInt16()
{
quint16 n =0;
if (ensureSpace(sizeof(quint16)))
{
n = *((quint16*) m_ba.mid(m_nCurrentPos, sizeof(quint16)).data());
m_nCurrentPos += sizeof(quint16);
}
return n;
}
quint64 IOBuffer::readUInt64()
{
quint64 num = 0;
if (ensureSpace(sizeof(quint64)))
{
num = *((quint64*) m_ba.mid(m_nCurrentPos, sizeof(quint64)).data());
m_nCurrentPos += sizeof(quint64);
}
return num;
}
/**
* The init method for this class. This does delayed
* initialization of this object until a INIT message is
* received during initialization.
*
* @param initialSize
* The initial list size (optional)
*
* @return Always returns nothing
*/
RexxObject *QueueClass::initRexx(RexxObject *initialSize)
{
// It would be nice to do this expansion in the new method, but it sort
// of messes up subclasses (e.g. CircularQueue) if we steal the first new
// argument. We will set the capacity here, even if it means an immediate expansion
// the capacity is optional, but must be a positive numeric value
size_t capacity = optionalLengthArgument(initialSize, DefaultArraySize, ARG_ONE);
ensureSpace(capacity);
return OREF_NULL;
}
int SP_NKStringBuffer :: append( const char * value, int size )
{
if( NULL == value ) return -1;
size = ( size <= 0 ? strlen( value ) : size );
if( size <= 0 ) return -1;
ensureSpace( size );
memcpy( mImpl->mBuffer + mImpl->mSize, value, size );
mImpl->mSize += size;
mImpl->mBuffer[ mImpl->mSize ] = '\0';
return 0;
}
void QTextEngine::shapeTextMac(int item) const
{
QScriptItem &si = layoutData->items[item];
si.glyph_data_offset = layoutData->used;
QFontEngine *font = fontEngine(si, &si.ascent, &si.descent, &si.leading);
if (font->type() != QFontEngine::Multi) {
shapeTextWithHarfbuzz(item);
return;
}
#ifndef QT_MAC_USE_COCOA
QFontEngineMacMulti *fe = static_cast<QFontEngineMacMulti *>(font);
#else
QCoreTextFontEngineMulti *fe = static_cast<QCoreTextFontEngineMulti *>(font);
#endif
QTextEngine::ShaperFlags flags;
if (si.analysis.bidiLevel % 2)
flags |= RightToLeft;
if (option.useDesignMetrics())
flags |= DesignMetrics;
attributes(); // pre-initialize char attributes
const int len = length(item);
int num_glyphs = length(item);
const QChar *str = layoutData->string.unicode() + si.position;
ushort upperCased[256];
if (si.analysis.flags == QScriptAnalysis::SmallCaps || si.analysis.flags == QScriptAnalysis::Uppercase
|| si.analysis.flags == QScriptAnalysis::Lowercase) {
ushort *uc = upperCased;
if (len > 256)
uc = new ushort[len];
for (int i = 0; i < len; ++i) {
if(si.analysis.flags == QScriptAnalysis::Lowercase)
uc[i] = str[i].toLower().unicode();
else
uc[i] = str[i].toUpper().unicode();
}
str = reinterpret_cast<const QChar *>(uc);
}
ensureSpace(num_glyphs);
num_glyphs = layoutData->glyphLayout.numGlyphs - layoutData->used;
QGlyphLayout g = availableGlyphs(&si);
g.numGlyphs = num_glyphs;
unsigned short *log_clusters = logClusters(&si);
bool stringToCMapFailed = false;
if (!fe->stringToCMap(str, len, &g, &num_glyphs, flags, log_clusters, attributes())) {
ensureSpace(num_glyphs);
stringToCMapFailed = fe->stringToCMap(str, len, &g, &num_glyphs, flags, log_clusters,
attributes());
}
if (!stringToCMapFailed) {
heuristicSetGlyphAttributes(str, len, &g, log_clusters, num_glyphs);
si.num_glyphs = num_glyphs;
layoutData->used += si.num_glyphs;
QGlyphLayout g = shapedGlyphs(&si);
if (si.analysis.script == QUnicodeTables::Arabic) {
QVarLengthArray<QArabicProperties> props(len + 2);
QArabicProperties *properties = props.data();
int f = si.position;
int l = len;
if (f > 0) {
--f;
++l;
++properties;
}
if (f + l < layoutData->string.length()) {
++l;
}
qt_getArabicProperties((const unsigned short *)(layoutData->string.unicode()+f), l, props.data());
unsigned short *log_clusters = logClusters(&si);
for (int i = 0; i < len; ++i) {
int gpos = log_clusters[i];
g.attributes[gpos].justification = properties[i].justification;
}
}
}
const ushort *uc = reinterpret_cast<const ushort *>(str);
if ((si.analysis.flags == QScriptAnalysis::SmallCaps || si.analysis.flags == QScriptAnalysis::Uppercase
|| si.analysis.flags == QScriptAnalysis::Lowercase)
&& uc != upperCased)
delete [] uc;
}
void push( const FormulaToken& token )
{
ensureSpace();
insert( topIndex++, token );
}
FormulaTokenStack()
: QVector<FormulaToken>(), topIndex( 0 )
{
ensureSpace();
}
/*
* Append eight big-endian bytes.
*/
void expandBufAdd8BE(ExpandBuf *pBuf, u8 val) {
ensureSpace(pBuf, sizeof(val));
set8BE(pBuf->storage + pBuf->curLen, val);
pBuf->curLen += sizeof(val);
}
/*
* Append a byte.
*/
void expandBufAdd1(ExpandBuf *pBuf, u1 val) {
ensureSpace(pBuf, sizeof(val));
*(pBuf->storage + pBuf->curLen) = val;
pBuf->curLen++;
}