Getting start index and length of a line in QTextDocument

[slandvogt]

I am wondering what the correct way is to achieve the following: I would like to have the character indices of the start of a line and its length.
At the moment I am abusing (again) the textcursor for that:

m_pTextCursor is a QTextCursor

void CQtTextLayout::GetLayoutIndicesOfLine( int line, int *start, int *length )
{
	if( m_pTextCursor )
	{
		m_pTextCursor->movePosition( QTextCursor::Start );
		for( int i=0; i<line; i++)
		{
			m_pTextCursor->movePosition( QTextCursor::Down );
		}
		m_pTextCursor->movePosition( QTextCursor::StartOfLine);
		*start = m_pTextCursor->position();
		m_pTextCursor->movePosition( QTextCursor::EndOfLine);
		*length = m_pTextCursor->position() - *start;
		DebugLog( "QT GetLayoutIndicesOfLine %d %d/%d", line, *start, *length );
	}
	else
	{
		*start = 0;
		*length = 0;
	}
}

void CQtTextLayout::GetLayoutIndicesOfLine( int line, int *start, int *length )
{
	if( m_pTextCursor )
	{
		m_pTextCursor->movePosition( QTextCursor::Start );
		for( int i=0; i<line; i++)
		{
			m_pTextCursor->movePosition( QTextCursor::Down );
		}
		m_pTextCursor->movePosition( QTextCursor::StartOfLine);
		*start = m_pTextCursor->position();
		m_pTextCursor->movePosition( QTextCursor::EndOfLine);
		*length = m_pTextCursor->position() - *start;
		DebugLog( "QT GetLayoutIndicesOfLine %d %d/%d", line, *start, *length );
	}
	else
	{
		*start = 0;
		*length = 0;
	}
}

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[JohannesMunk]

When you ignore line wrapping then each line is a QTextBlock. Have a look at its position and length methods.

Use the textdocuments findBlock .. functions to access those.

Hope, thats what you are looking for

Johannes