def test_bounds_all_elts(self):
'''bounds() with all the elements competing'''
net = Net('foo')
mkbounds(net, 3, 3, -1, -2)
self.des.add_net(net)
annot = Annotation('foo', 3, 3, 0, True)
mkbounds(annot, 3, 3, 3, 5)
self.des.design_attributes.add_annotation(annot)
libcomp = Component('bar')
libcomp.add_symbol(Symbol())
libcomp.symbols[0].add_body(Body())
mkbounds(libcomp.symbols[0].bodies[0], 0, 0, 3, 3)
self.des.add_component('foo', libcomp)
compinst = ComponentInstance('bar', 'foo', 0)
compinst.add_symbol_attribute(SymbolAttribute(3, 0, 0))
self.des.add_component_instance(compinst)
top_left, btm_right = self.des.bounds()
self.assertEqual(top_left.x, -1)
self.assertEqual(top_left.y, -2)
self.assertEqual(btm_right.x, 6)
self.assertEqual(btm_right.y, 5)
def parse_component_instance(self, f):
""" Parse a component instance from a $Comp block """
# pylint: disable=R0914
# name & reference
prefix, name, reference = f.readline().split()
assert prefix == 'L'
# unit & convert
prefix, unit, convert, _ = f.readline().split(None, 3)
unit, convert = int(unit), int(convert)
assert prefix == 'U'
# position
prefix, compx, compy = f.readline().split()
assert prefix == 'P'
compx, compy = int(compx), int(compy)
line = f.readline()
rotation = 0
annotations = []
while line.strip() not in ("$EndComp", ''):
if line.startswith('F '):
parts = line.split('"', 2)
value = parts[1].decode('utf-8', errors='replace')
parts = parts[2].strip().split()
annotations.append(
Annotation(value,
make_length(int(parts[1]) - compx),
-make_length(int(parts[2]) - compy),
0 if parts[0] == 'H' else 1, 'true'))
elif line.startswith('\t'):
parts = line.strip().split()
if len(parts) == 4:
rotation = MATRIX2ROTATION.get(
tuple(int(i) for i in parts), 0)
line = f.readline()
inst = ComponentInstance(reference, name, convert - 1)
symbattr = SymbolAttribute(make_length(compx), -make_length(compy),
rotation)
for ann in annotations:
symbattr.add_annotation(ann)
inst.add_symbol_attribute(symbattr)
return inst
def test_bounds_parts(self):
'''test bounds() with just components in the design'''
libcomp = Component('bar')
libcomp.add_symbol(Symbol())
libcomp.symbols[0].add_body(Body())
mkbounds(libcomp.symbols[0].bodies[0], 0, 0, 10, 10)
self.des.add_component('foo', libcomp)
for (x, y) in ((1, 3), (3, 2), (5, 3), (3, 7)):
compinst = ComponentInstance(str((x, y)), 'foo', 0)
compinst.add_symbol_attribute(SymbolAttribute(x, y, 0))
self.des.add_component_instance(compinst)
top_left, btm_right = self.des.bounds()
self.assertEqual(top_left.x, 1)
self.assertEqual(top_left.y, 2)
self.assertEqual(btm_right.x, 15)
self.assertEqual(btm_right.y, 17)
def test_write_instance(self):
"""
The write_instance method serializes a component instance
correctly.
"""
inst = ComponentInstance('id', 'libid', 1)
inst.add_symbol_attribute(SymbolAttribute(3, 4, 0.5))
writer = KiCAD()
buf = StringIO()
writer.write_instance(buf, inst)
self.assertEqual(buf.getvalue(), '''\
$Comp
L libid id
U 1 1 00000000
P 33 -44
\t1 33 -44
\t0 1 1 0
$EndComp
''')
def parse_component_instances(self, component_instances):
""" Extract the component instances. """
for instance in component_instances:
# Get instance_id, library_id and symbol_index
instance_id = instance.get('instance_id')
library_id = instance.get('library_id')
symbol_index = int(instance.get('symbol_index'))
# Make the ComponentInstance()
inst = ComponentInstance(instance_id, library_id, symbol_index)
# Get the SymbolAttributes
for symbol_attribute in instance.get('symbol_attributes'):
attr = self.parse_symbol_attribute(symbol_attribute)
inst.add_symbol_attribute(attr)
# Get the Attributes
for key, value in instance.get('attributes').items():
inst.add_attribute(key, value)
# Add the ComponentInstance
self.design.add_component_instance(inst)
def parse_inst(self, args):
""" Returns a parsed component instance. """
inst, libname, libnum, x, y, rot, _scale, _b = args.split()
# scale is a floating point scaling constant. Also, evil.
thisinst = ComponentInstance(inst, self.lookup(libname, libnum), 0)
if int(rot) > 3:
# part is flipped around y-axis. When applying transforms, flip it
# first, then rotate it.
rot = str(int(rot) - 4)
# flip = True
thisinst.add_symbol_attribute(SymbolAttribute(int(x), int(y),
float(rot) / 2))
subdata = defaultdict(list)
for phrase in self.stream:
cmd, _sep, args = phrase.partition(' ')
if cmd not in ('|R', 'A', 'C'):
self.stream.push(phrase)
break
k, v = self.parsenode(cmd)(args)
subdata[k].append(v)
for annot in subdata['annot']:
thisinst.symbol_attributes[0].add_annotation(annot)
if '=' in annot.value:
thisinst.add_attribute(*(annot.value.split('=', 1)))
# Turns out C can reference a net before it's been created via
# the N command. Really don't like passing stuff inband like this. Ugh.
thisinst.conns = subdata['conn']
return ('inst', thisinst)
def parse_component_instance(self, inst):
""" Parse a Fritzing non-wire instance into a ComponentInstance """
view = inst.find('views/schematicView')
if view is None:
return
if view.get('layer') == 'breadboardbreadboard':
return
cpt = self.ensure_component(inst)
if cpt is None:
return
index = inst.get('modelIndex')
idref = inst.get('moduleIdRef')
title = inst.find('title').text
geom = view.find('geometry')
xform = geom.find('transform')
x, y = float(geom.get('x', 0)), float(geom.get('y', 0))
if xform is None:
rotation = 0.0
else:
matrix = tuple(int(float(xform.get(key, 0)))
for key in ('m11', 'm12', 'm21', 'm22'))
x, y = rotate_component(cpt, matrix, x, y)
rotation = MATRIX2ROTATION.get(matrix, 0.0)
compinst = ComponentInstance(title, idref, 0)
compinst.add_symbol_attribute(
SymbolAttribute(make_x(x), make_y(y), rotation))
self.component_instances[index] = compinst
def parse_component(self, stream, params):
""" Creates a component instance according to the component *params*.
If the component is not known in the library, a the component
will be created according to its description in the embedded
environment ``[]`` or a symbol file. The component is added
to the library automatically if necessary.
An instance of this component will be created and added to
the design.
A GEDAError is raised when either the component file
is invalid or the referenced symbol file cannot be found
in the known directories.
Returns a tuple of Component and ComponentInstance objects.
"""
basename, dummy = os.path.splitext(params['basename'])
component_name = basename
if params['mirror']:
component_name += '_MIRRORED'
if component_name in self.design.components.components:
component = self.design.components.components[component_name]
## skipping embedded data might be required
self.skip_embedded_section(stream)
else:
##check if sym file is embedded or referenced
if basename.startswith('EMBEDDED'):
## embedded only has to be processed when NOT in symbol lookup
if basename not in self.known_symbols:
component = self.parse_component_data(stream, params)
else:
if basename not in self.known_symbols:
log.warn("referenced symbol file '%s' unknown" % basename)
## parse optional attached environment before continuing
self._parse_environment(stream)
return None, None
## requires parsing of referenced symbol file
f_in = open(self.known_symbols[basename], "rU")
self._check_version(f_in)
component = self.parse_component_data(f_in, params)
f_in.close()
self.design.add_component(component_name, component)
## get all attributes assigned to component instance
attributes = self._parse_environment(stream)
## refdes attribute is name of component (mandatory as of gEDA doc)
## examples if gaf repo have components without refdes, use part of
## basename
if attributes is not None:
instance = ComponentInstance(
attributes.get('_refdes', component.name),
component.name,
0
)
for key, value in attributes.items():
instance.add_attribute(key, value)
else:
instance = ComponentInstance(
component.name,
component.name,
0
)
## generate a component instance using attributes
self.design.add_component_instance(instance)
symbol = SymbolAttribute(
self.x_to_px(params['x']),
self.y_to_px(params['y']),
self.conv_angle(params['angle'])
)
instance.add_symbol_attribute(symbol)
## add annotation for special attributes
for idx, attribute_key in enumerate(['_refdes', 'device']):
if attribute_key in component.attributes \
or attribute_key in instance.attributes:
symbol.add_annotation(
Annotation(
'{{%s}}' % attribute_key,
0, 0+idx*10, 0.0, 'true'
)
)
return component, instance
def parse(self, filename, library_filename=None):
""" Parse a kicad file into a design """
# Rough'n'dirty parsing, assume nothing useful comes before
# the description
circuit = Design()
segments = set() # each wire segment
junctions = set() # wire junction point (connects all wires under it)
if library_filename is None:
library_filename = splitext(filename)[0] + '-cache.lib'
if exists(library_filename):
self.parse_library(library_filename, circuit)
f = open(filename)
# Read until the end of the description
while f.readline().strip() != "$EndDescr":
pass
# Now parse wires and components, ignore connections, we get
# connectivity from wire segments
line = f.readline()
while line:
element = line.split()[0] # whats next on the list
if element == "Wire": # Wire Segment, coords on 2nd line
x1, y1, x2, y2 = [int(i) for i in f.readline().split()]
if not (x1 == x2 and y1 == y2): # ignore zero-length segments
segments.add(((x1, y1), (x2, y2)))
elif element == "Connection": # Store these to apply later
x, y = [int(i) for i in line.split()[2:4]]
junctions.add((x, y))
elif element == "$Comp": # Component Instance
# name & reference
prefix, name, reference = f.readline().split()
assert prefix == 'L'
# timestamp
prefix, _ = f.readline().split(None, 1)
assert prefix == 'U'
# position
prefix, compx, compy = f.readline().split()
assert prefix == 'P'
compx, compy = int(compx), int(compy)
# TODO(ajray): ignore all the fields for now, probably
# could make these annotations
while f.readline().strip() not in ("$EndComp", ''):
pass
# TODO: calculate rotation
inst = ComponentInstance(reference, name, 0)
inst.add_symbol_attribute(SymbolAttribute(compx, compy, 0))
circuit.add_component_instance(inst)
line = f.readline()
f.close()
segments = self.divide(segments, junctions)
circuit.nets = self.calc_nets(segments)
return circuit
def parse(self, filename, library_filename=None):
""" Parse a kicad file into a design """
# Rough'n'dirty parsing, assume nothing useful comes before
# the description
circuit = Design()
segments = set() # each wire segment
junctions = set() # wire junction point (connects all wires under it)
if library_filename is None:
library_filename = splitext(filename)[0] + "-cache.lib"
if exists(library_filename):
self.parse_library(library_filename, circuit)
f = open(filename)
# Read until the end of the description
while f.readline().strip() != "$EndDescr":
pass
# Now parse wires and components, ignore connections, we get
# connectivity from wire segments
line = f.readline()
while line:
element = line.split()[0] # whats next on the list
if element == "Wire": # Wire Segment, coords on 2nd line
x1, y1, x2, y2 = [int(i) for i in f.readline().split()]
if not (x1 == x2 and y1 == y2): # ignore zero-length segments
segments.add(((x1, y1), (x2, y2)))
elif element == "Connection": # Store these to apply later
x, y = [int(i) for i in line.split()[2:4]]
junctions.add((x, y))
elif element == "$Comp": # Component Instance
# name & reference
prefix, name, reference = f.readline().split()
assert prefix == "L"
# timestamp
prefix, _ = f.readline().split(None, 1)
assert prefix == "U"
# position
prefix, compx, compy = f.readline().split()
assert prefix == "P"
compx, compy = int(compx), int(compy)
# TODO(ajray): ignore all the fields for now, probably
# could make these annotations
while f.readline().strip() not in ("$EndComp", ""):
pass
# TODO: calculate rotation
inst = ComponentInstance(reference, name, 0)
inst.add_symbol_attribute(SymbolAttribute(compx, compy, 0))
circuit.add_component_instance(inst)
line = f.readline()
f.close()
segments = self.divide(segments, junctions)
circuit.nets = self.calc_nets(segments)
return circuit
