from .layout import Layout

from tuikit.core.coords import Point

class OffsetLayout(Layout):

    """Offsets widget position. Used by Viewport and ScrollView."""

    def __init__(self):

        Layout.__init__(self)

        self._offset = Point()

    @property

    def offset(self):

        """Offset of child widgets."""

        return self._offset

        for widget in self._managed_widgets:

            widget.resize(*widget.sizereq)

            widget.pos.update(*(widget.posreq + self.offset))