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#!/usr/bin/env python
"""
A frame stimulus.
This module contains a class implementing a frame stimulus.
"""
__author__ = 'Florian Krause <florian@expyriment.org>, \
Oliver Lindemann <oliver@expyriment.org>'
__version__ = '0.7.0'
__revision__ = '55a4e7e'
__date__ = 'Wed Mar 26 14:33:37 2014 +0100'
import defaults
from _shape import Shape
class Frame(Shape):
"""A class implementing a frame stimulus."""
#FIXME: frames line width are still no symetric. Fixme later!
def __init__(self, size, position=None, frame_line_width=None,
colour=None, anti_aliasing=None, line_width=None):
"""Create a frame.
Parameters
----------
size : (int, int)
size of the frame (xy)
position : (int, int), optional
position of the stimulus
frame_line_width : int, optional
width of the frame lines
colour : (int, int, int), optional
colour of the frame
anti_aliasing : int, optional
anti aliasing parameter
Notes
-----
DEPRECATED CLASS: Please use 'Rectangle' with a line_width > 0!
"""
if position is None:
position = defaults.frame_position
if colour is None:
colour = defaults.frame_colour
if anti_aliasing is None:
anti_aliasing = defaults.frame_anti_aliasing
Shape.__init__(self, position=position, colour=colour,
line_width=0, anti_aliasing=anti_aliasing)
if frame_line_width is None:
frame_line_width = defaults.frame_frame_line_width
if line_width is not None:
message = "Frame: line_width attribute have been renamed! " +\
"Please use frame_line_width."
raise RuntimeError(message)
self._frame_size = list(size)
self._frame_line_width = frame_line_width
l1 = self._frame_size[0]
l2 = self._frame_size[1]
l3 = int(l1 - (self._frame_line_width * 2.0))
l4 = int(l2 - (self._frame_line_width * 2.0))
self.add_vertex((l1, 0))
self.add_vertex((0, l2))
self.add_vertex((-l1, 0))
self.add_vertex((0, -l2 + self._frame_line_width))
self.add_vertex((self._frame_line_width , 0))
self.add_vertex((0, l4 - 1))
self.add_vertex((l3, 0))
self.add_vertex((0, -l4 + 1))
self.add_vertex((-l3 - self._frame_line_width, 0))
@property
def frame_size(self):
"""Getter for frame_size."""
return self._frame_size
@property
def frame_line_width(self):
"""Getter for frame_line_width."""
return self._frame_line_width
if __name__ == "__main__":
from expyriment import control
control.set_develop_mode(True)
defaults.event_logging = 0
exp = control.initialize()
fixcross = Frame(size=(100, 100), frame_line_width=1, position=(0, 100))
fixcross.present()
exp.clock.wait(2000)
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