def draw_coluor_bars(self, cx, cy, rotate, name, parent, bbox):
group = parent.add(inkex.Group(id=name))
group.transform = inkex.Transform(translate=(cx, cy)) * inkex.Transform(rotate=rotate)
loc = 0
if bbox:
loc = min(self.mark_size / 3, max(bbox.width, bbox.height) / 45)
for bar in [{'c': '*', 'stroke': '#000', 'x': 0, 'y': -(loc + 1)},
{'c': 'r', 'stroke': '#0FF', 'x': 0, 'y': 0},
{'c': 'g', 'stroke': '#F0F', 'x': (loc * 11) + 1, 'y': -(loc + 1)},
{'c': 'b', 'stroke': '#FF0', 'x': (loc * 11) + 1, 'y': 0}
]:
i = 0
while i <= 1:
color = inkex.Color('white')
if bar['c'] == 'r' or bar['c'] == '*':
color.red = 255 * i
if bar['c'] == 'g' or bar['c'] == '*':
color.green = 255 * i
if bar['c'] == 'b' or bar['c'] == '*':
color.blue = 255 * i
r_att = {'fill': str(color),
'stroke': bar['stroke'],
'stroke-width': loc/8,
'x': str((loc * i * 10) + bar['x']), 'y': str(bar['y']),
'width': loc, 'height': loc}
rect = Rectangle()
for att, value in r_att.items():
rect.set(att, value)
group.add(rect)
i += 0.1
def draw_rect(x, y, w, h, stroke_width, fill, name):
elem = Rectangle(x=str(x), y=str(y), width=str(w), height=str(h))
elem.style = {
'stroke': '#000000',
'stroke-width': str(stroke_width),
'fill': fill
}
elem.set('inkscape:label', name)
return elem
def draw_rectangle(self, x, y, width, height):
"""Draw a rectangle bar with optional shadow"""
if self.blur:
shadow = Rectangle(x=str(x + 1),
y=str(y + 1),
width=str(width),
height=str(height))
shadow.style = self.blur
yield shadow
rect = Rectangle(x=str(x),
y=str(y),
width=str(width),
height=str(height))
rect.set("style", "fill:" + self.get_color())
yield rect
def generate(self):
"""Generate the actual svg from the coding"""
string = self.encode(self.text)
if string == 'ERROR':
return
name = self.get_id('barcode')
# use an svg group element to contain the barcode
barcode = Group()
barcode.set('id', name)
barcode.set('style', 'fill: black;')
barcode.transform.add_translate(self.pos_x, self.pos_y)
if self.scale:
barcode.transform.add_scale(self.scale)
bar_id = 1
bar_offset = 0
tops = set()
for datum in self.graphical_array(string):
# Datum 0 tells us what style of bar is to come next
style = self.get_style(int(datum[0]))
# Datum 1 tells us what width in units,
# style tells us how wide a unit is
width = int(datum[1]) * int(style['width'])
if style['write']:
tops.add(style['top'])
rect = Rectangle()
rect.set('x', str(bar_offset))
rect.set('y', str(style['top']))
if self.pos_text == TEXT_POS_TOP:
rect.set('y', str(style['top'] + self.font_size))
rect.set('id', "{}_bar{:d}".format(name, bar_id))
rect.set('width', str(width))
rect.set('height', str(style['height']))
barcode.append(rect)
bar_offset += width
bar_id += 1
for extra in self._extra:
if extra is not None:
barcode.append(extra)
bar_width = bar_offset
# Add text at the bottom of the barcode
text = TextElement()
text.set('x', str(int(bar_width / 2)))
text.set('y', str(min(tops) + self.font_size - 1))
if self.pos_text == TEXT_POS_BOTTOM:
text.set('y', str(self.height + max(tops) + self.font_size))
text.set('style', TEXT_TEMPLATE % self.font_size)
text.set('xml:space', 'preserve')
text.set('id', '{}_text'.format(name))
text.text = str(self.text)
barcode.append(text)
return barcode
def render_stbar(self, keys, values):
"""Draw stacked bar chart"""
# Iterate over all values to draw the different slices
color = 0
# create value sum in order to divide the bars
try:
valuesum = sum(values)
except ValueError:
valuesum = 0.0
# Init offset
offset = 0
width = self.options.bar_width
height = self.options.bar_height
x = self.width / 2
y = self.height / 2
if self.blur:
if self.options.rotate:
width, height = height, width
shy = y
else:
shy = str(y - self.options.bar_height)
# Create rectangle element
shadow = Rectangle(
x=str(x),
y=str(shy),
width=str(width),
height=str(height),
)
# Set shadow blur (connect to filter object in xml path)
shadow.style = self.blur
yield shadow
# Draw Single bars
for cnt, value in enumerate(values):
# Calculate the individual heights normalized on 100units
normedvalue = (self.options.bar_height / valuesum) * float(value)
# Create rectangle element
rect = Rectangle()
# Set chart position to center of document.
if not self.options.rotate:
rect.set('x', str(self.width / 2))
rect.set('y', str(self.height / 2 - offset - normedvalue))
rect.set("width", str(self.options.bar_width))
rect.set("height", str(normedvalue))
else:
rect.set('x', str(self.width / 2 + offset))
rect.set('y', str(self.height / 2))
rect.set("height", str(self.options.bar_width))
rect.set("width", str(normedvalue))
rect.set("style", "fill:" + self.get_color())
# If text is given, draw short paths and add the text
# TODO: apply overlap workaround for visible gaps in between
if keys:
if not self.options.rotate:
x1 = (self.width + self.options.bar_width) / 2
y1 = y - offset - (normedvalue / 2)
x2 = self.options.bar_width / 2 + self.options.text_offset
y2 = 0
txt = self.width / 2 + self.options.bar_width + self.options.text_offset + 1
tyt = y - offset + self.fontoff - (normedvalue / 2)
else:
x1 = x + offset + normedvalue / 2
y1 = y + self.options.bar_width / 2
x2 = 0
y2 = self.options.bar_width / 2 + (self.options.font_size \
* cnt) + self.options.text_offset
txt = x + offset + normedvalue / 2 - self.fontoff
tyt = (y) + self.options.bar_width + (self.options.font_size \
* (cnt + 1)) + self.options.text_offset
elem = inkex.PathElement()
elem.path = [Move(x1, y1), line(x2, y2)]
elem.style = {
'fill': 'none',
'stroke': self.options.font_color,
'stroke-width': self.options.stroke_width,
'stroke-linecap': 'butt',
}
yield elem
yield self.draw_text(keys[cnt], x=str(txt), y=str(tyt))
# Increase Offset and Color
offset = offset + normedvalue
color = (color + 1) % 8
# Draw rectangle
yield rect
yield self.draw_header(self.width / 2 + offset + normedvalue)
