public bool StartSelection(GLine line, int position, RangeType type, int x, int y)
{
Debug.Assert(position >= 0);
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line.ExpandBuffer(position + 1);
if (line.IsRightSideOfZenkaku(position))
position--;
//_disabledTemporary = false;
_pivotType = type;
_forwardPivot.Line = line.ID;
_backwardPivot.Line = line.ID;
_forwardDestination.Line = line.ID;
_forwardDestination.Column = position;
_backwardDestination.Line = line.ID;
_backwardDestination.Column = position;
switch (type) {
case RangeType.Char:
_forwardPivot.Column = position;
_backwardPivot.Column = position;
break;
case RangeType.Word:
_forwardPivot.Column = line.FindPrevWordBreak(position) + 1;
_backwardPivot.Column = line.FindNextWordBreak(position);
break;
case RangeType.Line:
_forwardPivot.Column = 0;
_backwardPivot.Column = line.DisplayLength;
break;
}
_state = SelectionState.Pivot;
_startX = x;
_startY = y;
FireSelectionStarted();
return true;
}
public bool ExpandTo(GLine line, int position, RangeType type)
{
line.ExpandBuffer(position + 1);
//_disabledTemporary = false;
_state = SelectionState.Expansion;
_forwardDestination.Line = line.ID;
_backwardDestination.Line = line.ID;
//Debug.WriteLine(String.Format("ExpandTo Line{0} Position{1}", line.ID, position));
switch (type) {
case RangeType.Char:
_forwardDestination.Column = position;
_backwardDestination.Column = position;
break;
case RangeType.Word:
_forwardDestination.Column = line.FindPrevWordBreak(position) + 1;
_backwardDestination.Column = line.FindNextWordBreak(position);
break;
case RangeType.Line:
_forwardDestination.Column = 0;
_backwardDestination.Column = line.DisplayLength;
break;
}
return true;
}