public Selection Current()
{
if (_lastWnd == null)
{
return(null);
}
bool wasOob;
Position pos = _lastWnd.GetPosition(_lastX, _lastY, out wasOob);
Edge edge = _selObj as Edge;
if (edge == null)
{
_lastWnd.Selected = !wasOob;
return(wasOob ? null : new Selection(_selObj, _lastWnd, pos));
}
if (_lastWnd == _orgWnd)
{
edge.Distance = new Position(
pos.col - _orgPos.col,
pos.row - _orgPos.row
);
}
else
{
edge.Distance = new Position(0, 0);
}
return(new Selection(_selObj, _lastWnd, pos));
}
public DragObject(TileWindow wnd, int x, int y)
{
_lastX = x;
_lastY = y;
_lastWnd = wnd;
_orgWnd = wnd;
bool wasOob;
_orgPos = _orgWnd.GetPosition(x, y, out wasOob);
if (wasOob)
{
throw new ArgumentOutOfRangeException();
}
_selObj = _orgWnd.PieceAt(_orgPos);
if (_selObj is Tile)
{
Bitmap img = _orgWnd.TileBitmap(_selObj as Tile);
img = img.SetAlpha(curAlpha).Scale(curScale);
_cur = new Cursor(img.GetHicon());
}
_orgWnd.Cursor = new Selection(_selObj, _orgWnd, _orgPos);
_orgWnd.AdoptCursor();
Transfer.Source = _orgWnd.Cursor;
}
private bool HasLeft(TileWindow wnd)
{
if (wnd == null || wnd != _orgWnd)
{
return(true);
}
if (_selObj is Edge)
{
var dist = ((Edge)_selObj).Distance;
return(dist.col != 0 || dist.row != 0);
}
bool wasOob;
Position loc = wnd.GetPosition(_lastX, _lastY, out wasOob);
return(!wasOob && (loc.col != _orgPos.col || loc.row != _orgPos.row));
}
private void ShowMenuAt(TileWindow wnd, int x, int y)
{
bool wasOob;
wnd.Position = wnd.GetPosition(x, y, out wasOob);
if (wasOob)
{
ClearSelection();
SetSample(null);
return;
}
if (wnd == inputWnd)
{
SetSample(inputWnd.PieceAt(inputWnd.Position) as Tile);
}
Transfer.Source = wnd.CurrentSelection();
if (wnd.EdgeOf(wnd.Position) == EdgeKind.None)
{
wnd.ShowMenu(x, y);
}
}
