currentLineIndex property
Gets the index of the current line where the cursor is located.
Implementation
int get currentLineIndex {
var cursorPos = selection.base.offset;
String txt = text.replaceMany(breaklineChars, breakline);
var textpart = txt.first(cursorPos);
var curIndex = textpart.count(breakline);
curIndex = curIndex.clamp(0, countLines - 1);
return curIndex;
}