public Cursor onMouseMove(MouseEventArgs e)
{
//Mode: ziehen in eine Richtung oder Rahmen verschieben oder nix
//schauen ob maus über was drüber ist -> Cursor wechseln
if (_mode.Equals(GrabMode.NONE))
{
Console.WriteLine("_mode.Equals(GrabMode.NONE)");
Cursor c = checkForActiveRegionChangeCursor(e.Location);
if (_activeGrabSquare == null && !c.Equals(_insideCursor)) //nix
{
_color = doNothingColor;
return(c);
}
else //mode change
{
//_color = activeColor;
return(c); //next move for dragging, moving...
}
}
else if (_mode.Equals(GrabMode.DRAG))
{
Console.WriteLine("_mode.Equals(GrabMode.DRAG)" + e.Location + " " + e.X + " " + e.Y);
_color = activeColor;
switch (_activeGrabSquare._direction)
{
case GrabSquare.Direction.HORIZONTAL:
if (_activeGrabSquare._location.Equals(GrabSquare.Location.MIDDLELEFT))
{
_rectangle.Width = Math.Max(0, _rectangle.Right - Math.Max(0, e.X));
if (_rectangle.Width > 0)
{
_rectangle.X = Math.Max(0, e.X);
}
}
else
{
_rectangle.Width = Math.Max(0, e.X - _rectangle.X);
if (_rectangle.Right >= _maxSize.Width)
{
_rectangle.Width = _maxSize.Width - _rectangle.X;
}
}
break;
case GrabSquare.Direction.VERTICAL:
if (_activeGrabSquare._location.Equals(GrabSquare.Location.TOPMIDDLE))
{
_rectangle.Height = Math.Max(0, _rectangle.Bottom - Math.Max(0, e.Y));
if (_rectangle.Height > 0)
{
_rectangle.Y = Math.Max(0, e.Y);
}
}
else
{
_rectangle.Height = Math.Max(0, e.Y - _rectangle.Y);
if (_rectangle.Bottom > _maxSize.Height)
{
_rectangle.Height = _maxSize.Height - _rectangle.Y;
}
}
break;
case GrabSquare.Direction.DIAGONALNESW:
if (_activeGrabSquare._location.Equals(GrabSquare.Location.TOPRIGHT))
{
_rectangle.Width = Math.Max(0, Math.Min(_maxSize.Width, e.X) - _rectangle.X);
_rectangle.Height = Math.Max(0, _rectangle.Y + _rectangle.Height - Math.Max(0, e.Y));
if (_rectangle.Height > 0)
{
_rectangle.Y = Math.Max(0, e.Y);
}
}
else
{
_rectangle.Width = Math.Max(0, _rectangle.X + _rectangle.Width - Math.Max(0, e.X));
_rectangle.Height = Math.Max(0, Math.Min(_maxSize.Height, e.Y) - _rectangle.Y);
if (_rectangle.Bottom > _maxSize.Height)
{
_rectangle.Height = _maxSize.Height - _rectangle.Y;
}
if (_rectangle.Left < 0)
{
_rectangle.X = 0;
}
if (_rectangle.Width > 0)
{
_rectangle.X = Math.Max(0, e.X);
}
}
break;
case GrabSquare.Direction.DIAGONALNWSE:
if (_activeGrabSquare._location.Equals(GrabSquare.Location.TOPLEFT))
{
_rectangle.Width = Math.Max(0, _rectangle.Right - Math.Max(0, e.X));
_rectangle.Height = Math.Max(0, _rectangle.Bottom - Math.Max(0, e.Y));
if (_rectangle.Width > 0)
{
_rectangle.X = Math.Max(0, e.X);
}
if (_rectangle.Height > 0)
{
_rectangle.Y = Math.Max(0, e.Y);
}
}
else
{
_rectangle.Width = Math.Max(0, e.X - _rectangle.X);
if (_rectangle.Right > _maxSize.Width)
{
_rectangle.Width = _maxSize.Width - _rectangle.X;
}
_rectangle.Height = Math.Max(0, e.Y - _rectangle.Y);
if (_rectangle.Bottom > _maxSize.Height)
{
_rectangle.Height = _maxSize.Height - _rectangle.Y;
}
}
break;
}
_parent.needRepaint();
return(_activeGrabSquare._cursor);
}
else if (_mode.Equals(GrabMode.MOVE))
{
Console.WriteLine("_mode.Equals(GrabMode.MOVE)");
if (e.X > _maxSize.Width || e.X < 0 || e.Y < 0 || e.Y > _maxSize.Height)
{
// _mode = GrabMode.NONE;
_color = doNothingColor;
_parent.needRepaint();
return(_insideCursor);
}
_color = activeColor;
int x = _rectangle.X;
int y = _rectangle.Y;
int eX = Math.Max(0, e.X);
eX = Math.Min(eX, _maxSize.Width);
int eY = Math.Max(0, e.Y);
eY = Math.Min(eY, _maxSize.Height);
_rectangle.X = Math.Max(0, _rectangle.X + (eX - _lastMovePosition.X));
_rectangle.Y = Math.Max(0, _rectangle.Y + (eY - _lastMovePosition.Y));
if (_rectangle.Right > _maxSize.Width)
{
_rectangle.X = x;
}
if (_rectangle.Bottom > _maxSize.Height)
{
_rectangle.Y = y;
}
_lastMovePosition = e.Location;
_parent.needRepaint();
return(_insideCursor);
}
else
{
throw new Exception(_mode + " unhandled"); //we test...
}
}
