/**
Automatically indents the QTextDocument doc by using indent/outdent regular expressions.
@todo The expressions are currently hardcoded and used to indent XQuery, XML and XSLT documents.
*/
void AutoIndent::indentDocument(QTextDocument *doc)
{
int level = 0;
QList<QRegExp> indentRules;
indentRules.append( QRegExp( "<\\w+[^>]*[^/]>" ) );
indentRules.append( QRegExp( "\\{" ) );
//indentRules.append( QRegExp( "(for|return)" ) );
QRegExp outdentRule( "(\\}|</[^>])" );
QString tNew;
for ( QTextBlock block = doc->firstBlock(); block.isValid(); block = block.next() )
{
QString t = block.text().trimmed();
const int indentCount = matchCount( indentRules, t );
level += indentCount;
const int outdentCount = matchCount( outdentRule, t );
level -= outdentCount;
if (level < 0)
level = 0;
if ( !t.isEmpty() ) // don't indent empty lines
{
const bool foundIndent = (indentCount > 0);
// const bool foundOutdent = (outdentCount > 0);
if ( foundIndent )
indent(t, level - indentCount + outdentCount); // don't indent start tag (stays on current level)
else
indent(t, level); // we are in an indent block
}
// line break when not the last line
if ( block.next().isValid() )
t += "\n";
// add to result
tNew += t;
//tNew.prepend( QString("[%1 , %2] : ").arg(indentCount, 2).arg(outdentCount, 2);
}
doc->setPlainText(tNew);
}
/**
Counts the occurences of a list of regular expressions. Each expression is evaluated independent of other expressions.
@return The total match count is returned.
*/
int AutoIndent::matchCount( const QList<QRegExp> &expressions, const QString &text ) const
{
int count = 0;
for (int i=0; i < expressions.count(); ++i)
{
count += matchCount(expressions.at(i), text);
}
return count;
}
void QUnsortedModelEngine::filterOnDemand(int n)
{
Q_ASSERT(matchCount());
if (!curMatch.partial)
return;
Q_ASSERT(n >= -1);
const QAbstractItemModel *model = c->proxy->sourceModel();
int lastRow = model->rowCount(curParent) - 1;
QIndexMapper im(curMatch.indices.last() + 1, lastRow);
int lastIndex = buildIndices(curParts.last(), curParent, n, im, &curMatch);
curMatch.partial = (lastRow != lastIndex);
saveInCache(curParts.last(), curParent, curMatch);
}
