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from collections import namedtuple
class SvgText(object):
"""Object for creating simple svg text elements
"""
TEMPLATE = u"""
<text
id="{id}"
x="{x}"
y="{y}"
fill="{fill}"
font-size="{font_size}"
{rotation}>
{data}
</text>
"""
ROTATION = u"""
transform="rotate({rotation}, {x}, {y})"
"""
def __call__(self, id, x, y, rotation, data, font_size, fill):
if rotation:
rotate = self._build_rotation(rotation, x, y)
else:
rotate = ''
return self.TEMPLATE.format(id=id, x=x, y=y, rotation=rotate,
data=data, font_size=font_size, fill=fill)
def _build_rotation(self, rotation, x, y):
return self.ROTATION.format(rotation=rotation, x=x, y=y)
class Svg(object):
TEMPLATE = u"""
<svg
xmlns:svg="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns="http://www.w3.org/2000/svg"
version="1.1"
zoomAndPan="magnify" preserveAspectRatio="xMidYMid meet"
viewBox="0 0 {width} {height}"
style="display:inline">
<g
pointer-events="none"
text-anchor="left"
font-size="12"
fill="blue"
stroke="none"
display="inline">
{text}
</g>
</svg>"""
FONT_COLOR = {u'Person': 'blue',
u'Conference Room': 'green',
u'Work Area': 'cyan',
u'Empty': 'red',
u'Restroom': 'coral'}
FONT_SIZE = { u'Person': '6',
u'Conference Room': '6',
u'Work Area': '6',
u'Empty': '6',
u'Restroom': '6'}
def __init__(self):
self.svgText = SvgText()
self.body = []
def _transform_coord(self, x_inkscape, y_inkscape):
""" x, y coordinates stored in database is based on inkscape
convention. Need to transform into svg convention
"""
x_new = x_inkscape
y_new = self.height - y_inkscape
return (x_new, y_new)
def set_map(self, map):
self.width = map.width
self.height = map.height
def add(self, row):
font_color = self.FONT_COLOR[row.type]
font_size = self.FONT_SIZE[row.type]
(x, y) = self._transform_coord(row.x, row.y)
self.body.append(self.svgText(row.id,
x,
y,
None,
row.label,
font_size,
font_color))
def render(self):
out = self.TEMPLATE.format(
width = self.width,
height = self.height,
text = u"\n".join(self.body),
)
return out.encode('utf-8')
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