override protected void OnPress(IntCoordinate c)
{
_x = c.X;
_y = c.Y;
_rectangle = SliceData.FindRectangle(c);
_slice = _rectangle.CreateHorizontalSlice(_y);
_horizontal = true;
Preview.Renderer.Function = Gdk.Function.Equiv;
_slice.Draw(Preview.Renderer);
}
override protected void OnMove(IntCoordinate c)
{
var coordinate = (_horizontal) ? new IntCoordinate(c.X, _y)
: new IntCoordinate(_x, c.Y);
var rectangle = SliceData.FindRectangle(coordinate);
bool rectangleChanged = rectangle != _endRectangle;
_endRectangle = rectangle;
bool horizontal = Math.Abs(c.X - _x) > Math.Abs(c.Y - _y);
bool orientationChanged = horizontal != _horizontal;
_horizontal = horizontal;
if (orientationChanged || rectangleChanged)
{
_slice.Draw(Preview.Renderer);
if (_horizontal)
{
if (rectangle.X1 <= _rectangle.X1)
{
_slice = new HorizontalSlice(rectangle.Left,
_rectangle.Right, _y);
}
else
{
_slice = new HorizontalSlice(_rectangle.Left,
rectangle.Right, _y);
}
}
else
{
if (rectangle.Y1 <= _rectangle.Y1)
{
_slice = new VerticalSlice(rectangle.Top,
_rectangle.Bottom, _x);
}
else
{
_slice = new VerticalSlice(_rectangle.Top,
rectangle.Bottom, _x);
}
}
_slice.Draw(Preview.Renderer);
}
}
