public static IRowCol Add(this IRowCol Value1, IRowCol Value2)
{
int rowNum = Value1.RowNum + Value2.RowNum;
int colNum = Value1.ColNum + Value2.ColNum;
return(Value1.NewRowCol(rowNum, colNum));
}
public static IRowCol Negate(this IRowCol RowCol)
{
var rowNum = RowCol.RowNum * -1;
var colNum = RowCol.ColNum * -1;
return(RowCol.NewRowCol(rowNum, colNum));
}
public static IRowCol AdvanceUp(this IRowCol RowCol)
{
int colNum = RowCol.ColNum;
int rowNum = RowCol.RowNum - 1;
rowNum = RowCol.WrapVertical(rowNum);
return(RowCol.NewRowCol(rowNum, colNum));
}
public static IRowCol ToContentRelative(
this IRowCol RowCol, ScreenContent ScreenContent)
{
if (RowCol.RowColRelative == ScreenContent.ContentRelative)
{
return(RowCol);
}
// convert RowCol to location relative to a window.
else if (RowCol.RowColRelative == RowColRelative.Parent)
{
var rowNum = RowCol.RowNum - ScreenContent.StartRowCol.RowNum;
var colNum = RowCol.ColNum - ScreenContent.StartRowCol.ColNum;
return(RowCol.NewRowCol(rowNum, colNum, ScreenContent));
}
// convert RowCol from local to window to absolute screen loc.
else
{
var rowNum = RowCol.RowNum + RowCol.ContentStart.Y;
var colNum = RowCol.ColNum + RowCol.ContentStart.X;
return(RowCol.NewRowCol(rowNum, colNum, ScreenContent));
}
}
/// <summary>
/// convert RowCol from whatever it is relative to to a value that is
/// relative to the entire telnet screen.
/// </summary>
/// <param name="RowCol"></param>
/// <param name="WindowContent"></param>
/// <returns></returns>
public static IRowCol ToParentRelative(
this IRowCol RowCol, ScreenContent WindowContent)
{
if (RowCol.RowColRelative == RowColRelative.Parent)
{
return(RowCol);
}
// convert RowCol from local to window to absolute screen loc.
else
{
var rowNum = RowCol.RowNum + RowCol.ContentStart.Y;
var colNum = RowCol.ColNum + RowCol.ContentStart.X;
bool forceParentRelative = true;
return(RowCol.NewRowCol(rowNum, colNum, null, forceParentRelative));
}
}