QTextCursor ScCodeEditor::cursorAt(const TokenIterator it, int offset) { Q_ASSERT(it.isValid()); QTextCursor textCursor(textDocument()); textCursor.setPosition(it.position() + offset); return textCursor; }
QTextCursor ScCodeEditor::selectionForPosition( int position ) { QTextBlock block( textDocument()->findBlock(position) ); if (!block.isValid()) return QTextCursor(); int positionInBlock = position - block.position(); TokenIterator it = TokenIterator( block, positionInBlock ); if (it.type() == Token::Unknown) { // Token is invalid, or Token::Unknown (i.e. punctuations). // Prefer token at previous position. TokenIterator alternativeIt = TokenIterator( block, positionInBlock - 1 ); if (alternativeIt.isValid()) it = alternativeIt; } if (it.isValid()) { switch (it->type) { case Token::OpeningBracket: case Token::ClosingBracket: { BracketPair match; matchBracket(it, match); if (match.first.isValid() && match.second.isValid()) { int start = match.first.position(); int end = match.second.position() + 1; QTextCursor selection(textDocument()); if (it == match.second) { selection.setPosition(start); selection.setPosition(end, QTextCursor::KeepAnchor); } else { selection.setPosition(end); selection.setPosition(start, QTextCursor::KeepAnchor); } return selection; } break; } default: QTextCursor selection( textDocument() ); selection.setPosition( it.position() ); selection.setPosition( selection.position() + it->length, QTextCursor::KeepAnchor ); return selection; } } return QTextCursor(); }