/// <summary>
/// Gets the first logical line for a given physical (visible) line.
/// </summary>
/// <param name="physicalLine">The physical line number.</param>
/// <returns>The logical line number.</returns>
/// <remarks>
/// <para>
/// A logical line is a line in the document, whereas a physical line is line that
/// is rendered in the text editor. A physical line can contain multiple logical lines,
/// for example when they are collapsed (see "folding").
/// </para>
/// <para>
/// The logical line numbers correspond with the line numbers drawn in the line-number margin.
/// (Except that logical lines are 0-based and line-numbers drawn are 1-based.)
/// </para>
/// <para>
/// Example: <c>lineNumber == 100</c>, foldings are in the <see cref="FoldingManager"/>
/// between 0..1 (2 folded, invisible lines). This method returns 102 as
/// the 'logical' line number.
/// </para>
/// <para>
/// A visible line can contain several logical lines when it contains a (folded)
/// folding. This method returns the <b>first</b> logical line that belongs to the
/// visible line.
/// </para>
/// </remarks>
public int GetFirstLogicalLine(int physicalLine)
{
return(_lineTrackingStrategy.GetFirstLogicalLine(physicalLine));
}
/// <summary>
/// Gets the first logical line for a given visible line.
/// </summary>
/// <param name="visibleLineNumber">The line number (visible lines).</param>
/// <returns>The logical line number.</returns>
/// <remarks>
/// <para>
/// Example: <c>lineNumber == 100</c>, foldings are in the <see cref="LineManager"/>
/// between 0..1 (2 folded, invisible lines). This method returns 102 as
/// the 'logical' line number.
/// </para>
/// <para>
/// A visible line can contain several logical lines when it contains a (folded)
/// folding. This method returns the <b>first</b> logical line that belongs to the
/// visible line.
/// </para>
/// </remarks>
public int GetFirstLogicalLine(int visibleLineNumber)
{
return(lineTrackingStrategy.GetFirstLogicalLine(visibleLineNumber));
}