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""" Define a simple filled box component.
"""
from __future__ import with_statement
# Parent package imports
from enable.api import border_size_trait, Component, transparent_color
from enable.colors import ColorTrait
from kiva.constants import FILL, STROKE
class Box(Component):
color = ColorTrait("white")
border_color = ColorTrait("black")
border_size = border_size_trait
def _draw_mainlayer(self, gc, view_bounds=None, mode="default"):
"Draw the box background in a specified graphics context"
# Set up all the control variables for quick access:
bs = self.border_size
bsd = bs + bs
bsh = bs / 2.0
x, y = self.position
dx, dy = self.bounds
with gc:
# Fill the background region (if required);
color = self.color_
if color is not transparent_color:
gc.set_fill_color(color)
gc.draw_rect((x + bs, y + bs, dx - bsd, dy - bsd), FILL)
# Draw the border (if required):
if bs > 0:
border_color = self.border_color_
if border_color is not transparent_color:
gc.set_stroke_color(border_color)
gc.set_line_width(bs)
gc.draw_rect((x + bsh, y + bsh, dx - bs, dy - bs), STROKE)
return
# EOF
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