Method GetLineFromYPos

Src/LocationView.cpp:814–849

* @brief Calculates view/real line in file from given YCoord in bar. * @param [in] nYCoord ycoord in pane * @param [in] bar bar/file * @param [in] bRealLine `true` if real line is returned, `false` for view line * @return 0-based index of view/real line in file [0...lines-1] */

 * @return 0-based index of view/real line in file [0...lines-1]
 */
int CLocationView::GetLineFromYPos(int nYCoord, int bar, bool bRealLine /*= true*/)
{
	CMergeEditView *pView = GetDocument()->GetActiveMergeGroupView(bar);

	int nSubLineIndex = (int) (m_pixInLines * (nYCoord - Y_OFFSET));

	// Keep sub-line index in range.
	if (nSubLineIndex < 0)
	{
		nSubLineIndex = 0;
	}
	else if (nSubLineIndex >= pView->GetSubLineCount())
	{
		nSubLineIndex = pView->GetSubLineCount() - 1;
	}

	// Find the real (not wrapped) line number from sub-line index.
	int nLine = 0;
	int nSubLine = 0;
	pView->GetLineBySubLine(nSubLineIndex, nLine, nSubLine);

	// Convert line number to line index.
	if (nLine > 0)
	{
		nLine -= 1;
	}

	// We've got a view line now
	if (!bRealLine)
		return nLine;

	// Get real line (exclude ghost lines)
	CMergeDoc* pDoc = GetDocument();
	const int nRealLine = pDoc->m_ptBuf[bar]->ComputeRealLine(nLine);
	return nRealLine;
}

/** 
 * @brief Determines if given coords are inside left/right bar.