def insert_node_at(path, at): index = int(at) t = at - index newpath = CreatePath() copy_path(newpath, path, 0, index) type, control, node, cont = path.Segment(index + 1) if type == Line: newpath.AppendLine((1 - t) * path.Node(index) + t * node) newpath.select_segment(-1) newpath.AppendLine(node) else: if newpath.Continuity(-1) == ContSymmetrical: newpath.SetContinuity(-1, ContSmooth) p1, p2 = control p1, p2, q, p3, p4 = subdivide(newpath.Node(-1), p1, p2, node, t) newpath.AppendBezier(p1, p2, q, ContSmooth) newpath.select_segment(-1) if cont == ContSymmetrical: cont = ContSmooth newpath.AppendBezier(p3, p4, node, cont) copy_path(newpath, path, index + 2) if path.closed: newpath.ClosePath() newpath.SetContinuity(-1, path.Continuity(-1)) return newpath
def read_polyline(self, line):
readline = self.readline; tokenize = skread.tokenize_line
args = tokenize(line)
if len(args) != 15:
raise SketchLoadError('Invalid PolyLine specification')
sub_type, line_style, thickness, pen_color, fill_color, depth, \
pen_style, area_fill, style, join, cap, \
radius, forward_arrow, backward_arrow, npoints = args
self.fill(fill_color, area_fill)
self.line(pen_color, thickness, join, cap, line_style, style)
if forward_arrow: readline() # XXX: implement this
if backward_arrow:readline() # XXX: implement this
if sub_type == 5: readline() # imported picture
path = CreatePath()
ncoords = npoints * 2
pts = self.read_tokens(ncoords)
if not pts:
raise SketchLoadError('Missing points for polyline')
if len(pts) > ncoords:
del pts[ncoords:]
map(path.AppendLine, coords_to_points(pts, self.trafo))
if sub_type in (2, 3, 4):
path.load_close(1)
self.bezier(paths = path)
self.set_depth(depth)
def load_3dface(self):
param={ '10': None,
'20': None,
#'30': None,
'11': None,
'21': None,
#'31': None,
'12': None,
'22': None,
#'32': None,
'13': None,
'23': None,
#'33': None,
'70': 0, # Invisible edge flags
}
param.update(self.general_param)
param = self.read_param(param)
self.path = CreatePath()
if param['70'] != 0:
print 'FIXMY. 3dface Invisible edge flags', param['70']
self.path.AppendLine(self.trafo(param['10'], param['20']))
self.path.AppendLine(self.trafo(param['11'], param['21']))
self.path.AppendLine(self.trafo(param['12'], param['22']))
self.path.AppendLine(self.trafo(param['13'], param['23']))
self.path.ClosePath()
style = self.get_line_style(**param)
self.prop_stack.AddStyle(style.Duplicate())
self.bezier(self.path,)
def bezier(self):
if self.path.len > 1:
if self.path.Node(0) == self.path.Node(-1):
self.path.load_close(1)
self.prop_stack.AddStyle(self.curstyle.Duplicate())
GenericLoader.bezier(self, paths=(self.path, ))
self.path = CreatePath()
def load_solid(self):
param={ '10': None,
'20': None,
#'30': None,
'11': None,
'21': None,
#'31': None,
'12': None,
'22': None,
#'32': None,
'13': None,
'23': None,
#'33': None,
}
param.update(self.general_param)
param = self.read_param(param)
style = self.curstyle.Duplicate()
style.line_pattern = EmptyPattern
style.fill_pattern = self.get_pattern(param['62'])
self.path = CreatePath()
self.path.AppendLine(self.trafo(param['10'], param['20']))
self.path.AppendLine(self.trafo(param['11'], param['21']))
self.path.AppendLine(self.trafo(param['12'], param['22']))
self.path.AppendLine(self.trafo(param['13'], param['23']))
self.path.ClosePath()
self.prop_stack.AddStyle(style.Duplicate())
self.bezier(self.path,)
def split_path_at(path, at): index = int(at) t = at - index if path.closed: path1 = path2 = CreatePath() result = [path1] else: path1 = CreatePath() path2 = CreatePath() result = [path1, path2] copy_path(path1, path, 0, 0, copy_selection = 0) type, control, node, cont = path.Segment(index + 1) if type == Line: q = (1 - t) * path.Node(index) + t * node path2.AppendLine(q) path2.AppendLine(node) path2.select_segment(0) function = path1.AppendLine args = (q,) else: p1, p2 = control p1, p2, q, p3, p4 = subdivide(path.Node(index), p1, p2, node, t) path2.AppendLine(q) path2.AppendBezier(p3, p4, node, cont) path2.select_segment(0) function = path1.AppendBezier args = (p1, p2, q, ContSymmetrical) copy_path(path2, path, index + 2, copy_selection = 0) copy_path(path1, path, 1, index, copy_selection = 0) apply(function, args) return result
def bezier(self):
if self.guess_continuity:
self.path.guess_continuity()
if self.path.len > 0:
if self.compound_path is not None:
self.compound_path.append(self.path)
else:
GenericLoader.bezier(self, paths=(self.path, ))
self.path = CreatePath()
def tidy(path):
# remove redundant node at the end of the path
if path.len > 1:
type, control, node, cont = path.Segment(path.len - 1)
if type == Line and equal(node, path.Node(path.len - 2)):
new_path = CreatePath()
for i in range(path.len - 1):
type, control, node, cont = path.Segment(i)
new_path.AppendSegment(type, control, node, cont)
path = new_path
return path
def DISJTLINE(self, size): path = () for i in range(size / (4 * reff.vdc.size)): subpath = CreatePath() P = self.Pnt() subpath.AppendLine(self.trafo(P)) P = self.Pnt() subpath.AppendLine(self.trafo(P)) path = path + (subpath,) self.setlinestyle() self.bezier(path)
def LineTo(self):
y, x = self.get_struct('<hh')
p = self.trafo(x, y)
self.prop_stack.AddStyle(self.curstyle.Duplicate())
self.prop_stack.SetProperty(fill_pattern = EmptyPattern)
path = CreatePath()
path.AppendLine(self.curpoint)
path.AppendLine(p)
self.bezier((path,))
self.curpoint = p
self._print('->', self.curpoint)
def line(self, attrs):
if self.in_defs:
return
x1, y1 = attrs.get('x1', '0'), attrs.get('y1', '0')
x2, y2 = attrs.get('x2', '0'), attrs.get('y2', '0')
path = CreatePath()
path.AppendLine(self.point(x1, y1))
path.AppendLine(self.point(x2, y2))
self.parse_attrs(attrs)
self.set_loader_style()
self.loader.bezier(paths = (path,))
def initialize(self):
self.draw = 0
self.scale = .283464566929
self.cur_x = 0.0
self.cur_y = 0.0
self.palette = Palette(self.basename)
self.path = CreatePath()
self.cur_style = Style()
self.cur_style.line_width = 0.6
self.cur_style.line_join = const.JoinRound
self.cur_style.line_cap = const.CapRound
self.cur_style.line_pattern = self.palette.next_color(1)
def initialize(self):
self.curstyle = Style()
self.curstyle.line_join = JoinRound
self.curstyle.line_cap = CapRound
self.cur_x = 0.0
self.cur_y = 0.0
self.draw = 0
self.absolute = 1
self.path = CreatePath()
self.curpen = None
self.penwidth = {}
self.select_pen()
def __init__(self, path, closed=0):
self.path = CreatePath()
if type(path) in (ListType, TupleType):
for segment in path:
if len(segment) == 2:
apply(self.path.AppendLine, segment)
else:
apply(self.path.AppendBezier, segment)
else:
self.path = path
if closed:
self.path.load_close()
def polyline(self, attrs): if self.in_defs: return points = as_latin1(attrs['points']) points = string.translate(points, commatospace) points = split(points) path = CreatePath() point = self.point for i in range(0, len(points), 2): path.AppendLine(point(points[i], points[i + 1])) self.parse_attrs(attrs) self.set_loader_style() self.loader.bezier(paths = (path,))
def read_polyline(self, line):
readline = self.readline
tokenize = skread.tokenize_line
args = tokenize(line)
if len(args) != 15:
raise SketchLoadError('Invalid PolyLine specification')
sub_type, line_style, thickness, pen_color, fill_color, depth, \
pen_style, area_fill, style, join, cap, \
radius, forward_arrow, backward_arrow, npoints = args
self.fill(fill_color, area_fill)
self.line(pen_color, thickness, join, cap, line_style, style)
if forward_arrow: readline() # XXX: implement this
if backward_arrow: readline() # XXX: implement this
if sub_type == 5: readline() # imported picture
ncoords = npoints * 2
pts = self.read_tokens(ncoords)
if not pts:
raise SketchLoadError('Missing points for polyline')
if len(pts) > ncoords:
del pts[ncoords:]
trafo = self.trafo
if sub_type in (1, 3, 5):
path = CreatePath()
map(path.AppendLine, coords_to_points(pts, trafo))
if sub_type == 3:
path.load_close(1)
self.bezier(paths=path)
self.set_depth(depth)
elif sub_type in (2, 4):
wx, wy = trafo(pts[2], pts[3]) - trafo(pts[0], pts[1])
hx, hy = trafo(pts[4], pts[5]) - trafo(pts[2], pts[3])
x, y = trafo(pts[0], pts[1])
if sub_type == 4 and radius > 0:
radius1 = (radius * 72.0 / 80.0) / max(abs(wx), abs(wy))
radius2 = (radius * 72.0 / 80.0) / max(abs(hx), abs(hy))
else:
radius1 = radius2 = 0
self.rectangle(wx,
wy,
hx,
hy,
x,
y,
radius1=radius1,
radius2=radius2)
self.set_depth(depth)
def load_seqend(self, line = None, path_flag = None): if line is None: line = self.vertex_path if path_flag is None: path_flag = self.path_flag if path_flag > 1: print 'FIXMY. Curves and smooth surface type', path_flag close_path = path_flag & 1 == 1 path = CreatePath() if len(line): for i in line: x, y, bulge = i #print x, y, bulge path.AppendLine(self.trafo(x, y)) if close_path: if path.Node(0) != path.Node(-1): path.AppendLine(path.Node(0)) path.ClosePath() self.prop_stack.AddStyle(self.curstyle.Duplicate()) self.bezier(path,)
class Arrow: def __init__(self, path, closed = 0): self.path = CreatePath() if type(path) in (ListType, TupleType): for segment in path: if len(segment) == 2: apply(self.path.AppendLine, segment) else: apply(self.path.AppendBezier, segment) else: self.path = path if closed: self.path.load_close() def BoundingRect(self, pos, dir, width): angle = atan2(dir.y, dir.x) if width < 1.0: width = 1.0 s = width * sin(angle) c = width * cos(angle) trafo = Trafo(c, s, -s, c, pos.x, pos.y) return self.path.accurate_rect(trafo) def Draw(self, device, rect = None): if self.path.closed: device.FillBezierPath(self.path, rect) else: device.DrawBezierPath(self.path, rect) def Paths(self): return (self.path,) def IsFilled(self): return self.path.closed def SaveRepr(self): path = map(lambda t: t[:-1], self.path.get_save()) return (path, self.path.closed) def __hash__(self): return hash(id(self.path)) def __cmp__(self, other): if __debug__: pdebug(None, 'Arrow.__cmp__, %s', other) if isinstance(other, self.__class__): return cmp(self.path, other.path) return cmp(id(self), id(other))
def makePageFrame(self):
doc = self.doc
layout = doc.Layout()
hor_p = layout.Width()
ver_p = layout.Height()
path = CreatePath()
path.AppendLine(Point(0, 0))
path.AppendLine(Point(hor_p, 0))
path.AppendLine(Point(hor_p, ver_p))
path.AppendLine(Point(0, ver_p))
path.AppendLine(Point(0, 0))
path.AppendLine(path.Node(0))
path.ClosePath()
bezier = PolyBezier((path, ))
doc.Insert(bezier)
class Arrow:
def __init__(self, path, closed=0):
self.path = CreatePath()
if type(path) in (ListType, TupleType):
for segment in path:
if len(segment) == 2:
apply(self.path.AppendLine, segment)
else:
apply(self.path.AppendBezier, segment)
else:
self.path = path
if closed:
self.path.load_close()
def BoundingRect(self, pos, dir, width):
angle = atan2(dir.y, dir.x)
if width < 1.0:
width = 1.0
s = width * sin(angle)
c = width * cos(angle)
trafo = Trafo(c, s, -s, c, pos.x, pos.y)
return self.path.accurate_rect(trafo)
def Draw(self, device, rect=None):
if self.path.closed:
device.FillBezierPath(self.path, rect)
else:
device.DrawBezierPath(self.path, rect)
def Paths(self):
return (self.path, )
def IsFilled(self):
return self.path.closed
def SaveRepr(self):
path = map(lambda t: t[:-1], self.path.get_save())
return (path, self.path.closed)
def __hash__(self):
return hash(id(self.path))
def __cmp__(self, other):
if __debug__:
pdebug(None, 'Arrow.__cmp__, %s', other)
if isinstance(other, self.__class__):
return cmp(self.path, other.path)
return cmp(id(self), id(other))
def load_line(self):
param={ '10': None, # X coordinat
'20': None, # y coordinat
#'30': None, # Z coordinat
'11': None, # X coordinat endpoint
'21': None, # y coordinat endpoint
#'31': None, # z coordinat endpoint
}
param.update(self.general_param)
param = self.read_param(param)
self.path = CreatePath()
self.path.AppendLine(self.trafo(param['10'], param['20']))
self.path.AppendLine(self.trafo(param['11'], param['21']))
style = self.get_line_style(**param)
self.prop_stack.AddStyle(style.Duplicate())
self.bezier(self.path,)
def Polyline(self): points = self.read_points(self.get_int16()) if points: path = CreatePath() map(path.AppendLine, points) self.prop_stack.AddStyle(self.curstyle.Duplicate()) self.prop_stack.SetProperty(fill_pattern = EmptyPattern) self.bezier((path,))
def __init__(self,
file,
filename,
match,
treat_toplevel_groups_as_layers=1,
flatten_groups=1):
GenericLoader.__init__(self, file, filename, match)
self.line_color = StandardColors.black
self.fill_color = StandardColors.black
self.line_width = 0.0
self.line_join = const.JoinMiter
self.line_cap = const.CapButt
self.line_dashes = ()
self.cur_x = self.cur_y = 0.0
self.treat_toplevel_groups_as_layers = treat_toplevel_groups_as_layers
self.flatten_groups = flatten_groups
self.guess_continuity = 1
self.path = CreatePath()
self.compound_path = None # If compound_path is None, we're
# outside of a compound path,
# otherwise it's a possibly empty list
# of paths
self.compound_render = ''
self.stack = []
self.gradients = {}
self.in_gradient_instance = 0
self.gradient_geo = None # set to a true value after Bg, and set
# to false by make_gradient_pattern
self.gradient_rect = None
self.in_palette = 0
self.in_text = 0
self.ignore_fill = 0
self.text_type = 0 # 0: point text, 1: area text, 2 = path text
self.text_render = 0 # filled
self.text_font = None
self.text_size = 12
# Test alignment. Possible values: 0: left, 1: center, 2:right,
# 3: justified, 4: justified including last line
self.text_align = 0
self.text_string = []
self.standard_encoding = encoding.adobe_standard
self.font_map = {}
self.guides = []
self.format_version = 0.0
def convert_outline(outline): paths = [] trafo = Scale(0.001) for closed, sub in outline: if closed: sub.append(sub[0]) path = CreatePath() paths.append(path) for item in sub: if len(item) == 2: apply(path.AppendLine, item) else: apply(path.AppendBezier, item) if closed: path.load_close() for path in paths: path.Transform(trafo) return tuple(paths)
def bezier(self): if self.guess_continuity: self.path.guess_continuity() if self.path.len > 0: if self.compound_path is not None: self.compound_path.append(self.path) else: GenericLoader.bezier(self, paths = (self.path,)) self.path = CreatePath()
def Polygon(self): points = self.read_points(self.get_int16()) if points: path = CreatePath() map(path.AppendLine, points) if path.Node(-1) != path.Node(0): #print 'correct polygon' path.AppendLine(path.Node(0)) path.load_close() self.prop_stack.AddStyle(self.curstyle.Duplicate()) self.bezier((path,))
def read_polyline(self, line):
readline = self.readline; tokenize = skread.tokenize_line
args = tokenize(line)
if len(args) != 15:
raise SketchLoadError('Invalid PolyLine specification')
sub_type, line_style, thickness, pen_color, fill_color, depth, \
pen_style, area_fill, style, join, cap, \
radius, forward_arrow, backward_arrow, npoints = args
self.fill(fill_color, area_fill)
self.line(pen_color, thickness, join, cap, line_style, style)
if forward_arrow: readline() # XXX: implement this
if backward_arrow:readline() # XXX: implement this
if sub_type == 5: readline() # imported picture
ncoords = npoints * 2
pts = self.read_tokens(ncoords)
if not pts:
raise SketchLoadError('Missing points for polyline')
if len(pts) > ncoords:
del pts[ncoords:]
trafo = self.trafo
if sub_type in (1, 3, 5):
path = CreatePath()
map(path.AppendLine, coords_to_points(pts, trafo))
if sub_type == 3:
path.load_close(1)
self.bezier(paths = path)
self.set_depth(depth)
elif sub_type in (2, 4):
wx, wy = trafo(pts[2], pts[3]) - trafo(pts[0], pts[1])
hx, hy = trafo(pts[4], pts[5]) - trafo(pts[2], pts[3])
x, y = trafo(pts[0], pts[1])
if sub_type == 4 and radius > 0:
radius1 = (radius * 72.0/80.0) / max(abs(wx),abs(wy))
radius2 = (radius * 72.0/80.0) / max(abs(hx),abs(hy))
else:
radius1 = radius2 = 0
self.rectangle(wx, wy, hx, hy, x, y, radius1 = radius1, radius2 = radius2)
self.set_depth(depth)
def __init__(self, path, closed = 0): self.path = CreatePath() if type(path) in (ListType, TupleType): for segment in path: if len(segment) == 2: apply(self.path.AppendLine, segment) else: apply(self.path.AppendBezier, segment) else: self.path = path if closed: self.path.load_close()
def create_spiral_path(rotation, radius):
r = unit.convert(radius)
rate = r / (rotation * 2 * pi)
def tangent(phi, a=0.55197 * rate):
return a * Point(cos(phi) - phi * sin(phi), sin(phi) + phi * cos(phi))
pi2 = pi / 2.0
angle = 0
tang = tangent(0)
path = CreatePath()
p = Point(0, 0)
path.AppendLine(p)
for i in range(rotation * 4):
p1 = p + tang
angle = pi2 * (i + 1)
p = Polar(rate * angle, angle)
tang = tangent(angle)
p2 = p - tang
path.AppendBezier(p1, p2, p, ContSymmetrical)
return path
def create_star_path(corners, outer_radius, inner_radius):
outer_radius = unit.convert(outer_radius)
inner_radius = unit.convert(inner_radius)
path = CreatePath()
angle = math.pi * 2 / corners
for i in range(corners):
path.AppendLine(Polar(outer_radius, angle * i))
path.AppendLine(Polar(inner_radius, angle * i + angle / 2))
path.AppendLine(path.Node(0))
path.ClosePath()
return path
def PolyPolygon(self): nr_of_polygons = self.get_int16() nr_of_points = [] for i in range(nr_of_polygons): nr_of_points.append(self.get_int16()) path = () for i in nr_of_points: points = self.read_points(i) if points: subpath = CreatePath() map(subpath.AppendLine, points) if subpath.Node(-1) != subpath.Node(0): subpath.AppendLine(subpath.Node(0)) subpath.load_close() path = path + (subpath,) if path: self.prop_stack.AddStyle(self.curstyle.Duplicate()) self.bezier(path)
def __init__(self, file, filename, match,
treat_toplevel_groups_as_layers = 1,
flatten_groups = 1):
GenericLoader.__init__(self, file, filename, match)
self.line_color = StandardColors.black
self.fill_color = StandardColors.black
self.line_width = 0.0
self.line_join = const.JoinMiter
self.line_cap = const.CapButt
self.line_dashes = ()
self.cur_x = self.cur_y = 0.0
self.treat_toplevel_groups_as_layers = treat_toplevel_groups_as_layers
self.flatten_groups = flatten_groups
self.guess_continuity = 1
self.path = CreatePath()
self.compound_path = None # If compound_path is None, we're
# outside of a compound path,
# otherwise it's a possibly empty list
# of paths
self.compound_render = ''
self.stack = []
self.gradients = {}
self.in_gradient_instance = 0
self.gradient_geo = None # set to a true value after Bg, and set
# to false by make_gradient_pattern
self.gradient_rect = None
self.in_palette = 0
self.in_text = 0
self.ignore_fill = 0
self.text_type = 0 # 0: point text, 1: area text, 2 = path text
self.text_render = 0 # filled
self.text_font = None
self.text_size = 12
# Test alignment. Possible values: 0: left, 1: center, 2:right,
# 3: justified, 4: justified including last line
self.text_align = 0
self.text_string = []
self.standard_encoding = encoding.adobe_standard
self.font_map = {}
self.guides = []
self.format_version = 0.0
def bezier_load(self, line):
bezier = self.object
while 1:
try:
bezier.paths[-1].append_from_string(line)
line = bezier.paths[-1].append_from_file(self.file)
except:
warn(INTERNAL, _("Error reading line %s"), ` line `)
line = self.file.readline()
if line[:2] == 'bC':
bezier.paths[-1].load_close()
line = self.file.readline()
if line[:2] == 'bn':
bezier.paths = bezier.paths + (CreatePath(), )
line = self.file.readline()
else:
break
if line[:2] not in ('bs', 'bc'):
break
return line
def convert_paths(self, paths_list): paths = () for path in paths_list: p = CreatePath() p.AppendLine(Point(*path[0])) points = path[1] for point in points: if len(point) == 2: p.AppendLine(Point(*point)) else: point0 = Point(*point[0]) point1 = Point(*point[1]) point2 = Point(*point[2]) p.AppendBezier(point0, point1, point2, point[3]) if path[2]: p.AppendLine(Point(*path[0])) p.ClosePath() paths = paths + (p,) return paths
def create_star_path(corners, step, radius): # create a star-like polygon. center = Point(300, 400) radius = 100 angle = step * 2 * pi / corners # create an empty path and append the line segments path = CreatePath() for i in range(corners): p = Polar(radius, angle * i + pi / 2) path.AppendLine(p) # close the path. path.AppendLine(path.Node(0)) path.ClosePath() return path
def POLYGONSET(self, size): path = () subpath = CreatePath() for i in range(size / (2 * reff.vdc.size + 2)): P = self.Pnt() F = self.Enum() subpath.AppendLine(self.trafo(P)) if F in (2, 3): if subpath.Node(-1) != subpath.Node(0): subpath.AppendLine(subpath.Node(0)) subpath.load_close() path = path + (subpath,) subpath = CreatePath() if subpath.len != 0: if subpath.Node(-1) != subpath.Node(0): subpath.AppendLine(subpath.Node(0)) subpath.load_close() path = path + (subpath,) self.setfillstyle() self.bezier(path)
def read_spline(self, line):
readline = self.readline; tokenize = skread.tokenize_line
args = tokenize(line)
if len(args) != 13:
raise SketchLoadError('Invalid Spline specification')
sub_type, line_style, thickness, pen_color, fill_color, depth, \
pen_style, area_fill, style, cap, \
forward_arrow, backward_arrow, npoints = args
closed = sub_type & 1
if forward_arrow: readline()
if backward_arrow:readline()
# in 3.2 all splines are stored as x-splines...
if self.format_version == 3.2:
if sub_type in (0, 2):
sub_type = 4
else:
sub_type = 5
self.fill(fill_color, area_fill)
self.line(pen_color, thickness, 0, cap, line_style, style)
ncoords = npoints * 2
pts = self.read_tokens(ncoords)
if not pts:
raise SketchLoadError('Missing points for spline')
if len(pts) > ncoords:
del pts[ncoords:]
pts = coords_to_points(pts, self.trafo)
path = CreatePath()
if sub_type in (2, 3):
# interpolated spline, read 2 control points for each node
ncontrols = 4 * npoints
controls = self.read_tokens(ncontrols)
if not controls:
raise SketchLoadError('Missing control points for spline')
if len(controls) > ncontrols:
del controls[ncontrols:]
controls = coords_to_points(controls[2:-2], self.trafo)
path.AppendLine(pts[0])
ncontrols = 2 * (npoints - 1)
controls = [controls] * (npoints - 1)
map(path.AppendBezier,
map(getitem, controls, range(0, ncontrols, 2)),
map(getitem, controls, range(1, ncontrols, 2)),
pts[1:])
elif sub_type in (0, 1):
# approximated spline
f13 = 1.0 / 3.0; f23 = 2.0 / 3.0
curve = path.AppendBezier
straight = path.AppendLine
last = pts[0]
cur = pts[1]
start = node = (last + cur) / 2
if closed:
straight(node)
else:
straight(last)
straight(node)
last = cur
for cur in pts[2:]:
c1 = f13 * node + f23 * last
node = (last + cur) / 2
c2 = f13 * node + f23 * last
curve(c1, c2, node)
last = cur
if closed:
curve(f13 * node + f23 * last, f13 * start + f23 * last, start)
else:
straight(last)
elif sub_type in (4, 5):
# An X-spline. Treat it like a polyline for now.
# read and discard the control info
self.read_tokens(npoints)
self.add_message(_("X-Spline treated as PolyLine"))
map(path.AppendLine, pts)
if closed:
path.AppendLine(path.Node(0))
if closed:
path.load_close(1)
self.bezier(paths = path)
self.set_depth(depth)
class AILoader(GenericLoader):
format_name = format_name
functions = {"C": 'curveto',
"c": 'curveto_smooth',
"V": 'curveto_v',
"v": 'curveto_v_smooth',
"Y": 'curveto_y',
"y": 'curveto_y_smooth',
"m": 'moveto',
"l": 'lineto',
"L": 'lineto',
"w": 'set_line_width',
"j": 'set_line_join',
"J": 'set_line_cap',
"d": 'set_line_dash',
"G": 'set_line_gray',
"K": 'set_line_cmyk',
"XA": 'set_line_rgb',
"X": 'set_line_cmyk_custom',
"XX": 'set_line_generic_custom',
"P": 'set_line_pattern',
"g": 'set_fill_gray',
"k": 'set_fill_cmyk',
"cmyk": 'set_fill_cmyk',
"Xa": 'set_fill_rgb',
"rgb": 'set_fill_rgb',
"x": 'set_fill_cmyk_custom',
"Xx": 'set_fill_generic_custom',
"p": 'set_fill_pattern',
"F": 'fill',
"f": 'fill_close',
"S": 'stroke',
"s": 'stroke_close',
"B": 'fill_stroke',
"b": 'fill_stroke_close',
"closepath": 'fill_stroke_close',
"N": 'invisible', # an invisible open path
"n": 'invisible_close', # a invisible closed path
"u": 'begin_group',
"U": 'end_group',
"*u": 'begin_compound_path',
"newpath": 'begin_compound_path',
"*U": 'end_compound_path',
"gsave": 'end_compound_path',
"*": 'guide',
"[": 'mark',
"]": 'make_array',
"@": 'ignore_operator',
"&": 'ignore_operator',
"Bd": 'begin_gradient',
"Bs": 'gradient_stop',
"BS": 'dummy_gradient_stop',
"Br": 'gradient_ramps',
"BD": 'end_gradient',
"Bb": 'begin_gradient_instance',
"Bg": 'gradient_geometry',
"BB": 'end_gradient_instance',
"Lb": 'begin_ai_layer',
"Ln": 'name_layer',
"LB": 'end_ai_layer',
"Pb": 'begin_palette',
"PB": 'end_palette',
"TE": 'set_standard_encoding',
"TZ": 'reencode_font',
"To": 'begin_text',
"TO": 'end_text',
"Tr": 'set_text_render',
"Tf": 'set_text_font',
"Ta": 'set_text_align',
"Tp": 'begin_text_path',
"TP": 'end_text_path',
"Tx": 'render_text',
"TX": 'render_text_inv',
"XI": 'raster_image',
}
def __init__(self, file, filename, match,
treat_toplevel_groups_as_layers = 1,
flatten_groups = 1):
GenericLoader.__init__(self, file, filename, match)
self.line_color = StandardColors.black
self.fill_color = StandardColors.black
self.line_width = 0.0
self.line_join = const.JoinMiter
self.line_cap = const.CapButt
self.line_dashes = ()
self.cur_x = self.cur_y = 0.0
self.treat_toplevel_groups_as_layers = treat_toplevel_groups_as_layers
self.flatten_groups = flatten_groups
self.guess_continuity = 1
self.path = CreatePath()
self.compound_path = None # If compound_path is None, we're
# outside of a compound path,
# otherwise it's a possibly empty list
# of paths
self.compound_render = ''
self.stack = []
self.gradients = {}
self.in_gradient_instance = 0
self.gradient_geo = None # set to a true value after Bg, and set
# to false by make_gradient_pattern
self.gradient_rect = None
self.in_palette = 0
self.in_text = 0
self.ignore_fill = 0
self.text_type = 0 # 0: point text, 1: area text, 2 = path text
self.text_render = 0 # filled
self.text_font = None
self.text_size = 12
# Test alignment. Possible values: 0: left, 1: center, 2:right,
# 3: justified, 4: justified including last line
self.text_align = 0
self.text_string = []
self.standard_encoding = encoding.adobe_standard
self.font_map = {}
self.guides = []
self.format_version = 0.0
def __del__(self):
pass
def warn(self, level, *args, **kw):
message = apply(warn, (level,) + args, kw)
self.add_message(message)
def get_compiled(self):
funclist = {}
for char, name in self.functions.items():
method = getattr(self, name)
argc = method.im_func.func_code.co_argcount - 1
funclist[char] = (method, argc)
return funclist
def pop(self):
value = self.stack[-1]
del self.stack[-1]
return value
def pop_multi(self, num):
value = self.stack[-num:]
del self.stack[-num:]
return value
def pop_to_mark(self):
s = self.stack[:]
s.reverse()
try:
idx = s.index(None)
if idx:
array = self.stack[-idx:]
del self.stack[-idx - 1:]
else:
array = []
del self.stack[-1]
return array
except:
raise RuntimeError, 'No mark on stack'
def ignore_operator(self):
pass
def mark(self):
self.stack.append(None)
def make_array(self):
array = self.pop_to_mark()
self.stack.append(array)
def convert_color(self, color_spec):
c = apply(CreateRGBColor, color_spec)
return c
def set_line_join(self, join):
self.line_join = _ai_join[join]
def set_line_cap(self, cap):
self.line_cap = _ai_cap[cap]
def set_line_width(self, w):
self.line_width = w
def set_line_dash(self, array, phase):
self.line_dashes = tuple(array)
def set_line_gray(self, k):
self.line_color = CreateRGBColor(k, k, k)
def set_line_cmyk(self, c, m, y, k):
self.line_color = CreateCMYKColor(c, m, y, k)
def set_line_rgb(self, r, g, b):
self.line_color = CreateRGBColor(r, g, b)
def set_line_cmyk_custom(self, c, m, y, k, name, tint):
self.line_color = cmyk_custom_color(c, m, y, k, tint)
def set_line_generic_custom(self, name, tint, type):
if type == 0:
# cmyk
c, m, y, k = self.pop_multi(4)
self.line_color = cmyk_custom_color(c, m, y, k, tint)
else:
# rgb
r, g, b = self.pop_multi(3)
self.line_color = rgb_custom_color(r, g, b, tint)
def set_line_pattern(self, name, px, py, sx, sy, angle, rf, r, k, ka,
matrix):
if not self.in_palette:
self.add_message(_("Vector patterns not supported. Using black"))
self.line_color = StandardColors.black
def set_fill_gray(self, k):
self.fill_color = CreateRGBColor(k, k, k)
def set_fill_cmyk(self, c, m, y, k):
self.fill_color = CreateCMYKColor(c, m, y, k)
def set_fill_rgb(self, r, g, b):
self.fill_color = CreateRGBColor(r, g, b)
def set_fill_cmyk_custom(self, c, m, y, k, name, tint):
self.fill_color = cmyk_custom_color(c, m, y, k, tint)
def set_fill_generic_custom(self, name, tint, type):
if type == 0:
# cmyk
c, m, y, k = self.pop_multi(4)
self.fill_color = cmyk_custom_color(c, m, y, k, tint)
else:
# rgb
r, g, b = self.pop_multi(3)
self.fill_color = rgb_custom_color(r, g, b, tint)
def set_fill_pattern(self, name, px, py, sx, sy, angle, rf, r, k, ka,
matrix):
if not self.in_palette:
self.add_message(_("Vector patterns not supported. Using black"))
self.fill_color = StandardColors.black
def ls(self):
style = self.style
style.line_pattern = SolidPattern(self.line_color)
style.line_width = self.line_width
style.line_join = self.line_join
style.line_cap = self.line_cap
style.line_dashes = self.line_dashes
def lsnone(self):
self.style.line_pattern = EmptyPattern
def fs(self):
if self.gradient_geo:
pattern = self.make_gradient_pattern()
else:
pattern = SolidPattern(self.fill_color)
self.style.fill_pattern = pattern
def fsnone(self):
self.style.fill_pattern = EmptyPattern
def stroke(self):
if self.compound_path is not None:
self.compound_render = 'stroke'
else:
self.ls()
self.fsnone()
self.bezier()
def stroke_close(self):
self.bezier_close()
self.stroke()
def fill(self):
if self.ignore_fill:
return
if self.compound_path is not None:
self.compound_render = 'fill'
else:
self.lsnone()
self.fs()
self.bezier()
def fill_close(self):
self.bezier_close()
self.fill()
def fill_stroke(self):
if self.compound_path is not None:
self.compound_render = 'fill_stroke'
else:
self.ls()
self.fs()
self.bezier()
def fill_stroke_close(self):
self.bezier_close()
self.fill_stroke()
def invisible(self):
if self.compound_path is not None:
self.compound_render = 'invisible'
else:
self.lsnone()
self.fsnone()
self.bezier()
def invisible_close(self):
self.bezier_close()
self.invisible()
# Gradient functions
def begin_gradient(self, name, type, ncolors):
self.gradient_info = name, type, ncolors
def gradient_stop(self, color_style, mid_point, ramp_point):
if color_style == 0:
# gray scale
k = self.pop()
color = CreateRGBColor(k, k, k)
elif color_style == 1:
# CMYK
color = apply(CreateCMYKColor, tuple(self.pop_multi(4)))
elif color_style == 2:
# RGB Color
args = tuple(self.pop_multi(7))
# The cmyk and rgb values usually differ slightly because AI
# does some color correction. Which values should we choose
# here?
color = apply(CreateRGBColor, args[-3:])
color = apply(CreateCMYKColor, args[:4])
elif color_style == 3:
# CMYK Custom Color
args = self.pop_multi(6)
color = apply(CreateCMYKColor, tuple(args[:4]))
else:
self.add_message(_("Gradient ColorStyle %d not yet supported."
"substituted black")
% color_style)
if color_style == 4:
n = 10
else:
self.add_message(_("Unknown ColorStyle %d")
% color_style)
self.pop_multi(n)
color = StandardColors.black # XXX
#color = apply(CreateRGBColor, color)
self.stack.append((ramp_point / 100.0, color))
def dummy_gradient_stop(self, color_style, mid_point, ramp_point):
# same as gradient_stop but ignore all arguments. Illustrator 8
# seems to introduce this one for printing (i.e. Illustrator 8
# files with printing info contain the gradient stops *twice* in
# exactly the same format but once with the Bs operator and once
# with BS. I guess this has something to do with support for
# PostScript Level 3 and backwards compatibility with older
# Illustrator versions.
if color_style == 0:
# gray scale
k = self.pop()
elif color_style == 1:
# CMYK
self.pop_multi(4)
elif color_style == 2:
# RGB Color
self.pop_multi(7)
elif color_style == 3:
# CMYK Custom Color
self.pop_multi(6)
elif color_style == 4:
self.pop_multi(10)
else:
self.add_message(_("Unknown ColorStyle %d") % color_style)
def gradient_ramps(self, ramp_type):
# defines the ramp colors with a bunch of strings for printing.
# Here we just pop all the strings off the stack
num = (1, 4, 5, 6, 7, 8, 9)[ramp_type]
self.pop_multi(num)
def end_gradient(self):
self.make_array()
array = self.pop()
if len(array) < 2:
self.add_message(_("less than two color stops in gradient"))
else:
# sometimes the ramp_point values are increasing, sometimes
# decreasing... what's going on here? The docs say they are
# increasing.
if array[0][0] > array[-1][0]:
array.reverse()
name, type, ncolors = self.gradient_info
self.gradients[name] = (type, array)
del self.stack[:]
#self.pop_to_mark()
def begin_gradient_instance(self):
self.in_gradient_instance = 1
self.ignore_fill = 1
def gradient_geometry(self, flag, name, xorig, yorig, angle, length,
a, b, c, d, tx, ty):
trafo = Trafo(a, b, c, d, tx, ty)
trafo = artboard_trafo_inv(trafo(artboard_trafo))
start = Point(xorig, yorig)
end = start + Polar(length, (pi * angle) / 180.0)
self.gradient_geo = (name, trafo, start, end)
def make_gradient_pattern(self):
name, trafo, start, end = self.gradient_geo
self.gradient_geo = None
type, array = self.gradients[name]
array = array[:]
if type == 0:
# linear (axial) gradient
origdir = end - start
start = trafo(start)
end = trafo(end)
dir = end - start
try:
# adjust endpoint to accomodate trafo
v = trafo.DTransform(origdir.y, -origdir.x).normalized()
v = Point(v.y, -v.x) # rotate 90 degrees
end = start + (v * dir) * v
dir = end - start
except ZeroDivisionError:
pass
trafo2 = Trafo(dir.x, dir.y, dir.y, -dir.x, start.x, start.y)
trafo2 = trafo2.inverse()
left, bottom, right, top = trafo2(self.current_bounding_rect())
if right > left:
factor = 1 / (right - left)
offset = -left * factor
else:
factor = 1
offset = 0
array = fix_gradient(array, factor, offset)
pattern = LinearGradient(MultiGradient(array),
(start - end).normalized())
elif type == 1:
# radial gradient
start = trafo(start)
end = trafo(end)
left, bottom, right, top = self.current_bounding_rect()
if left == right or top == bottom:
# an empty coord_rect????
center = Point(0, 0)
else:
center = Point((start.x - left) / (right - left),
(start.y - bottom) / (top - bottom))
radius = max(hypot(left - start.x, top - start.y),
hypot(right - start.x, top - start.y),
hypot(right - start.x, bottom - start.y),
hypot(left - start.x, bottom - start.y))
if radius:
factor = -abs(start - end) / radius
array = fix_gradient(array, factor, 1)
pattern = RadialGradient(MultiGradient(array), center)
else:
self.add_message(_("Unknown gradient type %d"), type)
pattern = EmptyPattern
return pattern
def current_bounding_rect(self):
if self.gradient_rect is not None:
rect = self.gradient_rect
else:
rect = self.path.accurate_rect()
if not self.style.line_pattern.is_Empty:
rect = fix_bounding_rect(rect, self.style)
return rect
def end_gradient_instance(self, flag):
self.ignore_fill = 0
if flag == 2:
self.fill_stroke_close()
elif flag == 1:
self.fill_stroke()
else:
self.fill()
self.in_gradient_instance = 0
# Path construction
def moveto(self, x, y):
self.cur_x = x
self.cur_y = y
self.path.AppendLine(x, y)
def lineto(self, x, y):
self.cur_x = x
self.cur_y = y
self.path.AppendLine(x, y)
def curveto(self, x1, y1, x2, y2, x3, y3):
self.path.AppendBezier(x1, y1, x2, y2, x3, y3)
self.cur_x = x3
self.cur_y = y3
def curveto_smooth(self, x1, y1, x2, y2, x3, y3):
self.path.AppendBezier(x1, y1, x2, y2, x3, y3, ContSmooth)
self.cur_x = x3
self.cur_y = y3
def curveto_v(self, x2, y2, x3, y3):
# current point and first control point are identical
self.path.AppendBezier(self.cur_x, self.cur_y, x2, y2, x3, y3)
self.cur_x = x3
self.cur_y = y3
def curveto_v_smooth(self, x2, y2, x3, y3):
# current point and first control point are identical
self.path.AppendBezier(self.cur_x, self.cur_y, x2, y2, x3, y3,
ContSmooth)
self.cur_x = x3
self.cur_y = y3
def curveto_y(self, x1, y1, x3, y3):
# endpoint and last controlpoint are identical
self.path.AppendBezier(x1, y1, x3, y3, x3, y3)
self.cur_x = x3
self.cur_y = y3
def curveto_y_smooth(self, x1, y1, x3, y3):
# endpoint and last controlpoint are identical
self.path.AppendBezier(x1, y1, x3, y3, x3, y3, ContSmooth)
self.cur_x = x3
self.cur_y = y3
def bezier_close(self):
if self.path.len > 1:
self.path.AppendLine(self.path.Node(0))
self.path.load_close(1)
def bezier(self):
if self.guess_continuity:
self.path.guess_continuity()
if self.path.len > 0:
if self.compound_path is not None:
self.compound_path.append(self.path)
else:
GenericLoader.bezier(self, paths = (self.path,))
self.path = CreatePath()
# compound paths
def begin_compound_path(self):
self.compound_path = []
def end_compound_path(self):
paths = tuple(self.compound_path)
self.compound_path = None
if paths:
# XXX ugly
if self.gradient_geo:
rect = paths[0].accurate_rect()
for path in paths[1:]:
rect = UnionRects(rect, path.accurate_rect())
self.gradient_rect = rect
else:
self.gradient_rect = None
getattr(self, self.compound_render)()
GenericLoader.bezier(self, paths = paths)
# Groups
def begin_group(self):
if self.compound_path is None:
# a normal group
if self.treat_toplevel_groups_as_layers:
if self.composite_class == Document:
self.begin_layer()
return
GenericLoader.begin_group(self)
else:
# a `compound group'. Ignored since Sketch doesn't have this.
pass
def end_group(self):
if self.compound_path is None:
# a normal group
if self.composite_class == Layer:
self.end_composite()
else:
try:
GenericLoader.end_group(self)
if self.flatten_groups:
if self.object.NumObjects() == 1:
obj = self.object.GetObjects()[0]
del self.composite_items[-1]
self.append_object(obj)
except EmptyCompositeError:
pass
else:
# a `compound group'. Ignored since Sketch doesn't have this.
pass
# Layers
def begin_layer(self):
self.layer(_("Layer %d") % (len(self.composite_items) + 1))
def begin_ai_layer(self):
if self.format_version >= 4.0:
visible, preview, enabled, printing, dimmed, unused, has_mlm,\
color, red, green, blue, unused, unused = self.pop_multi(13)
else:
visible, preview, enabled, printing, dimmed, has_mlm, \
color, red, green, blue = self.pop_multi(10)
color = CreateRGBColor(red / 255.0, green / 255.0, blue / 255.0)
self.layer_kw_args = {'printable': printing,
'visible': visible,
'locked': not enabled,
'outline_color': color}
def end_ai_layer(self):
self.end_layer()
def name_layer(self, name):
apply(self.layer, (name,), self.layer_kw_args)
# Guides
def guide(self, op):
#print 'guide', op
method = getattr(self, self.functions[op])
method()
guide = self.pop_last()
self.guides.append(guide)
# Palette
def begin_palette(self):
self.in_palette = 1
def end_palette(self):
self.in_palette = 0
# Text
def set_standard_encoding(self):
encoding = list(self.standard_encoding)
pos = 0
defs = self.pop_to_mark()
for item in defs:
if type(item) == IntType:
pos = item
elif type(item) == StringType:
encoding[pos] = item
pos = pos + 1
else:
self.add_message('unknown item %s in encoding' % `item`)
self.standard_encoding = tuple(encoding)
def define_font(self, psname, newname, encoding = None):
if encoding is None:
encoding = self.standard_encoding[:]
self.font_map[newname] = FontInfo(psname, newname, encoding)
def reencode_font(self):
args = self.pop_to_mark()
if type(args[-1]) == ListType:
self.add_message(_("Multiple Master fonts not supported. "
"Using Times Roman"))
newname = args[-6]
self.define_font('Times Roman', newname)
else:
newname, psname, direction, script, usedefault = args[-5:]
if len(args) > 5:
self.add_message(_("Additional encoding ignored"))
self.define_font(psname, newname)
def begin_text(self, text_type):
self.in_text = 1
self.text_type = text_type
self.text_string = []
if text_type == 1:
self.add_message(_("Area text not supported"))
if text_type == 2:
GenericLoader.begin_group(self)
def end_text(self):
# we don't support area text (text_type 1) at all. Return
# immediately in that case.
if self.text_type == 1:
return
# first, turn the text accumulated in the list text_string into
# a single string and unify line endings to newline characters.
text = string.join(self.text_string, '')
text = string.replace(text, '\r\n', '\n')
text = string.replace(text, '\r', '\n')
# remove a trailing newline. Many Illustrator files contain a
# trailing newline as 'overflow' text, there's probably a better
# way to deal with this...
if text[-1:] == "\n":
text = text[:-1]
# Re-encode to Latin1
text = self.text_font.Reencode(text)
if not string.strip(text):
if self.text_type == 2:
self.end_composite()
del self.composite_items[-1]
if len(self.composite_items) > 0:
self.object = self.composite_items[-1]
return
# first create a simple text object
self.fs()
self.style.font = GetFont(self.text_font.psname)
self.style.font_size = self.text_size
self.simple_text(text, self.text_trafo,
halign = _ai_text_align[self.text_align])
# if we're actually supposed to create a path-text object, turn
# the text object just created into a path-text object
if self.text_type == 2:
GenericLoader.end_group(self)
group = self.pop_last()
objects = group.GetObjects()
if len(objects) == 2:
path, text = objects
self.append_object(PathText(text, path,
start_pos = self.text_start_pos))
#self.composite_items[-1] = self.object
# we've finished the text object
self.in_text = 0
def set_text_render(self, render):
self.text_render = render
def set_text_align(self, align):
self.text_align = align
def set_text_font(self):
# In Illustrator < 7, the operator has two arguments, new
# fontname and size. In Illustrator >= 7, there are two
# additional arguments, ascent and descent.
args = self.pop_multi(2)
if type(args[0]) != StringType:
newname, size = self.pop_multi(2)
else:
newname, size = args
if self.font_map.has_key(newname):
self.text_font = self.font_map[newname]
elif newname[0] == '_':
# special case for ai files generated by ps2ai. They don't
# use the TZ operator to reencode the fonts and define the _
# names.
self.define_font(newname[1:], newname)
self.text_font = self.font_map[newname]
else:
self.add_message(_("No font %s.") % newname)
self.text_size = size
def begin_text_path(self, a, b, c, d, tx, ty, start_pos):
self.text_trafo = Trafo(a, b, c, d, tx, ty)
self.text_start_pos = start_pos
def end_text_path(self):
pass
def render_text(self, text):
if self.text_type != 2:
# in a path text only the invisible render operators count
self.text_string.append(text)
def render_text_inv(self, text):
self.text_string.append(text)
# Raster Image
def raster_image(self, trafo, llx, lly, urx, ury, width, height,
bits, mode, alpha, reserved, encoding, mask):
if bits != 8 or mode not in (1, 3):
self.add_message(_("Only images with 1 or 3 components "
"and 8 bits/component supported"))
self.skip_to_dsc("AI5_EndRaster")
return
decode = streamfilter.SubFileDecode(self.tokenizer.source,
'%AI5_EndRaster')
if encoding == 0:
decode = streamfilter.HexDecode(decode)
data_length = mode * width * height
data = decode.read(data_length)
#f = open("/tmp/dump.ppm", "w")
#if mode == 1:
# f.write("P5\n%d %d\n255\n" % (width, height))
#else:
# f.write("P6\n%d %d\n255\n" % (width, height))
#f.write(data)
#f.close()
if mode == 1:
mode = 'L'
elif mode == 3:
mode = 'RGB'
elif mode == 4:
mode == 'CMYK'
image = Image.fromstring(mode, (width, height), data, 'raw', mode)
self.image(image, apply(Trafo, tuple(trafo)))
#
def append_object(self, object):
if self.composite_class == Document \
and object.__class__ != Layer:
self.begin_layer()
self.composite_items.append(object)
self.object = object
#
#
def skip_to_dsc(self, *endcomments):
next_dsc = self.tokenizer.next_dsc; split = string.split
while 1:
value = next_dsc()
if not value:
return
if ':' in value:
keyword, value = split(value, ':', 1)
else:
keyword = value
if keyword in endcomments:
return
def read_prolog(self):
next = self.tokenizer.next
DSC = DSC_COMMENT; split = string.split
while 1:
token, value = next()
if token == DSC:
if ':' in value:
keyword, value = split(value, ':', 1)
else:
keyword = value
if keyword in ('EndProlog', 'BeginSetup'):
return keyword
if keyword[:14] == "AI5_FileFormat":
self.format_version = string.atof(keyword[14:])
elif keyword == 'BeginProcSet':
# some ai files exported by corel draw don't have an
# EndProcSet comment after a BeginProcSet...
self.skip_to_dsc('EndProcSet', 'EndProlog')
elif keyword == 'BeginResource':
self.skip_to_dsc('EndResource', 'EndProlog')
#elif keyword == 'Creator':
## try to determine whether the file really is an
## illustrator file as opposed to some other EPS
## file. It seems that Illustrator itself only
## accepts EPS files as illustrator files if they
## contain "Adobe Illustrator" in their Create
## DSC-comment
#if string.find(value, "Adobe Illustrator") == -1:
#self.add_message("This is probably not an"
#" Illustrator file."
#" Try embedding it as EPS")
if token == END:
return
def Load(self):
funclist = self.get_compiled()
# binding frequently used functions to local variables speeds up
# the process considerably...
a = apply; t = tuple
DSC = DSC_COMMENT; MAX = MAX_DATA_TOKEN; split = string.split
stack = self.stack; push = self.stack.append
unknown_operator = (None, None)
decoder = streamfilter.StringDecode(self.match.string, self.file)
self.tokenizer = PSTokenizer(decoder)
self.tokenizer.ai_pseudo_comments = 1
self.tokenizer.ai_dsc = 1
next = self.tokenizer.next
self.document()
value = self.read_prolog()
while 1:
token, value = next()
if token <= MAX:
push(value)
elif token == DSC:
if ':' in value:
keyword, value = split(value, ':', 1)
else:
keyword = value
if keyword in ('PageTrailer', 'Trailer'):
break
elif keyword == 'AI5_BeginPalette':
self.skip_to_dsc('AI5_EndPalette', 'EndSetup')
elif keyword == "AI8_BeginBrushPattern":
self.skip_to_dsc('AI8_EndBrushPattern', 'EndSetup')
elif token == END:
break
elif token == OPERATOR:
method, argc = funclist.get(value, unknown_operator)
#if method is not None:
# name = method.__name__
#else:
# name = `method`
if method is None:
del stack[:]
else:
try:
if argc:
args = t(stack[-argc:])
del stack[-argc:]
a(method, args)
else:
method()
except:
warn_tb(INTERNAL, 'AILoader: error')
self.end_all()
self.object.load_Completed()
for obj in self.guides:
self.object.guide_layer.Insert(obj, None)
return self.object
def insert_segments(path): newpath = CreatePath() newpath.AppendLine(path.Node(0), path.Continuity(0)) newpath.select_segment(0, path.SegmentSelected(0)) for i in range(1, path.len): type, p12, p, cont = path.Segment(i) if path.SegmentSelected(i) and path.SegmentSelected(i - 1): if type == Line: node = 0.5 * path.Node(i - 1) + 0.5 * path.Node(i) newpath.AppendLine(node) newpath.select_segment(-1) newpath.AppendLine(path.Node(i)) newpath.select_segment(-1) else: if newpath.Continuity(-1) == ContSymmetrical: newpath.SetContinuity(-1, ContSmooth) p1, p2 = p12 p1, p2, node, p3, p4 = subdivide(path.Node(i - 1), p1, p2, p) newpath.AppendBezier(p1, p2, node, ContSymmetrical) newpath.select_segment(-1) if cont == ContSymmetrical: cont = ContSmooth newpath.AppendBezier(p3, p4, p, cont) newpath.select_segment(-1) else: newpath.AppendSegment(type, p12, p, cont) newpath.select_segment(-1, path.SegmentSelected(i)) if path.closed: newpath.ClosePath() newpath.SetContinuity(-1, path.Continuity(-1)) return newpath
class PolyBezierCreator(Creator):
creation_text = _("Create Curve")
def __init__(self, start):
self.path = CreatePath()
Creator.__init__(self, start)
def apply_constraints(self, p, state):
if self.path.len > 0:
node = self.path.Node(-1)
elif self.dragging:
node = self.drag_start
else:
return p
if state & ConstraintMask:
radius, angle = (p - node).polar()
pi12 = pi / 12
angle = pi12 * floor(angle / pi12 + 0.5)
p = node + Polar(radius, angle)
return p
def ButtonDown(self, p, button, state):
p = self.apply_constraints(p, state)
if self.path.len == 0:
self.path.AppendLine(p)
else:
self.path.AppendBezier(self.drag_cur, p, p)
return self.DragStart(p)
def MouseMove(self, p, state):
if not (state & Button1Mask):
return
self.DragMove(self.apply_constraints(p, state))
def ButtonUp(self, p, button, state):
if not (state & Button1Mask):
return
p = self.apply_constraints(p, state)
self.DragStop(p)
if self.path.len > 1:
type, (p1, p2), p, cont = self.path.Segment(-1)
p2 = adjust_control_point(p2, p, self.drag_cur, ContSymmetrical)
self.path.SetBezier(-1, p1, p2, p, ContSymmetrical)
def EndCreation(self):
return self.path.len > 1
def AppendInteractive(self, p):
return self
def ContinueCreation(self):
return self.AppendInteractive
def DrawDragged(self, device, partially):
if not partially:
self.path.draw_not_last(device.Bezier, device.Line)
device.DrawHandleLine(self.path.Node(-1), self.drag_cur)
device.DrawSmallRectHandle(self.drag_cur)
if self.path.len > 1:
type, (p1, p2), p, cont = self.path.Segment(-1)
p2 = adjust_control_point(p2, p, self.drag_cur, ContSymmetrical)
device.Bezier(self.path.Node(-2), p1, p2, p)
device.DrawHandleLine(p, p2)
device.DrawSmallRectHandle(p2)
def CreatedObject(self):
return PolyBezier(paths = (self.path,), properties = DefaultGraphicsProperties())
def __init__(self, start): self.path = CreatePath() Creator.__init__(self, start)
class DXFLoader(GenericLoader):
functions={ "POP_TRAFO": 'pop_trafo',
"TABLE": 'load_TABLE',
"BLOCK": 'load_BLOCK',
"LINE": 'load_line',
"LWPOLYLINE": 'load_lwpolyline',
"POLYLINE": 'load_polyline',
"SEQEND": 'load_seqend',
"VERTEX": 'load_vertex',
"CIRCLE": 'load_circle',
"ARC": 'load_arc',
"ELLIPSE": 'load_ellips',
"POINT": 'load_point',
"SOLID": 'load_solid',
"INSERT": 'load_insert',
"TEXT": 'load_text',
#"MTEXT": 'load_text',
"3DFACE": 'load_3dface',
"SPLINE": 'load_spline',
"VIEWPORT": 'load_bypass',
}
def __init__(self, file, filename, match):
GenericLoader.__init__(self, file, filename, match)
self.file = file
self.DWGCODEPAGE = 'latin1'
self.unit_to_pt = 2.83464566929
self.dynamic_style_dict = {}
self.style_dict = {}
self.ltype_dict = {'CONTINUOUS': { '2': 'CONTINUOUS', # Linetype name
'3': 'Solid line', # Descriptive text for linetype
'49': [], # Dash, dot or space length
#(one entry per element)
}
}
self.layer_dict = {'0': { '2': '0', # Layer name
'6': 'CONTINUOUS', #Linetype name
'62': 0, # Color number
'370': None, #Line weight
}
}
self.block_dict = {}
self.stack = []
self.stack_trafo = []
self.default_layer = '0'
self.default_style = 'STANDARD'
self.default_block = None
self.default_line_width = 30
self.EXTMIN = (1e+20, 1e+20)
self.EXTMAX = (-1e+20, -1e+20)
self.PEXTMIN = (1e+20, 1e+20)
self.PEXTMAX = (-1e+20, -1e+20)
self.general_param = {
'8': self.default_layer, # Layer name
'6': 'BYLAYER', # Linetype name
'62': 256, # Color number
'48': 1.0, # Linetype scale
#'60': 0, # Object visibility. If 1 Invisible
}
self.curstyle = Style()
self.update_trafo()
def update_trafo(self, scale = 1):
EXT_hight = self.EXTMAX[0] - self.EXTMIN[0]
EXT_width = self.EXTMAX[1] - self.EXTMIN[1]
PEXT_hight = self.PEXTMAX[0] - self.PEXTMIN[0]
PEXT_width = self.PEXTMAX[1] - self.PEXTMIN[1]
if EXT_hight > 0:
scale = 840 / max(EXT_hight, EXT_width)
self.unit_to_pt = scale
x = self.EXTMIN[0] * scale
y = self.EXTMIN[1] * scale
elif PEXT_hight > 0:
scale = 840 / max(PEXT_hight, PEXT_width)
self.unit_to_pt = scale
x = self.PEXTMIN[0] * scale
y = self.PEXTMIN[1] * scale
else:
x = 0
y = 0
self.trafo = Trafo(scale, 0, 0, scale, -x, -y)
def push_trafo(self, trafo = None):
# save trafo in stack_trafo
if trafo is None:
trafo = self.trafo
self.stack_trafo.append(trafo)
def pop_trafo(self):
self.trafo = self.stack_trafo.pop()
def get_pattern(self, color_index):
# 0 = Color BYBLOCK
if color_index == 0:
block_name = self.default_block
if block_name is None:
layer_name = '0'
else:
layer_name = self.block_dict[block_name]['8']
color_index = self.layer_dict[layer_name]['62']
# 256 = Color BYLAYER
if color_index == 256 or color_index is None:
layer_name = self.default_layer
color_index = self.layer_dict[layer_name]['62']
## FIXMY 257 = Color BYENTITY
if color_index < 0:
pattern = EmptyPattern
else:
pattern = SolidPattern(colors[color_index])
return pattern
def get_line_width(self, layer_name = None):
if layer_name is None:
layer_name = self.default_layer
layer = self.layer_dict[layer_name]
if '370' in layer:
width = layer['370']
if width == -3 or width is None:
width = self.default_line_width
width = width * 72.0 / 2.54 /1000 # th 100 mm to pt
if width <= 0.0: # XXX
width = 0.1
return width
def get_line_type(self, linetype_name = None, scale = 1.0, width = 1.0, layer_name = None):
#if linetype_name == 'BYBLOCK':
#block_name = self.default_block
#layer_name = self.block_dict[block_name]['8']
if layer_name is None:
layer_name = self.default_layer
if linetype_name is None or linetype_name == 'BYLAYER' or linetype_name == 'BYBLOCK':
linetype_name = self.layer_dict[layer_name]['6']
linetype = self.ltype_dict[upper(linetype_name)]['49']
lscale = scale * self.unit_to_pt / width
dashes = map(lambda i : abs(linetype[i]) * lscale, xrange(len(linetype)))
return tuple(dashes)
def get_line_style(self, **kw):
if kw['8'] in self.layer_dict:
self.default_layer = layer_name = kw['8']
else:
layer_name = self.default_layer
linetype_name = upper(kw['6'])
scale = kw['48']
color_index = kw['62']
style = Style()
style.line_width = self.get_line_width()
style.line_join = const.JoinRound
style.line_cap = const.CapRound
style.line_dashes = self.get_line_type(linetype_name = linetype_name, scale = scale, width = style.line_width)
style.line_pattern = self.get_pattern(color_index)
return style
################
# HEADER Section
#
def load_HEADER(self):
return_code = False
header_dict = {}
variable = None
params = {}
line1, line2 = self.read_record()
while line1 or line2:
if variable and (line1 == '9' or line1 == '0'):
header_dict[variable] = params
else:
params[line1] = line2
if line1 == '0' and line2 == 'ENDSEC':
return_code = True
break
elif line1 == '9':
params = {}
variable = line2
line1, line2 = self.read_record()
return return_code, header_dict
def process_header(self, header):
if '$DWGCODEPAGE' in header:
self.DWGCODEPAGE = 'cp'+ upper(header['$DWGCODEPAGE']['3']).replace('ANSI_', '').replace('DOS','')
if '$INSUNITS' in header:
INSUNITS = convert('70', header['$INSUNITS']['70'])
if INSUNITS in unit:
self.unit_to_pt = unit[INSUNITS]
if '$EXTMIN' in header:
param10 = convert('10', header['$EXTMIN']['10'])
param20 = convert('20', header['$EXTMIN']['20'])
self.EXTMIN = (param10, param20)
if '$EXTMAX' in header:
param10 = convert('10', header['$EXTMAX']['10'])
param20 = convert('20', header['$EXTMAX']['20'])
self.EXTMAX = (param10, param20)
if '$PEXTMIN' in header:
param10 = convert('10', header['$PEXTMIN']['10'])
param20 = convert('20', header['$PEXTMIN']['20'])
self.PEXTMIN = (param10, param20)
if '$PEXTMAX' in header:
param10 = convert('10', header['$PEXTMAX']['10'])
param20 = convert('20', header['$PEXTMAX']['20'])
self.PEXTMAX = (param10, param20)
self.update_trafo()
if '$CLAYER' in header:
self.default_layer = convert('8', header['$CLAYER']['8'], self.DWGCODEPAGE)
################
# TABLES Section
#
def load_TABLE(self):
param={ '2': '', # Table name
'70': 0 # Maximum number of entries in table
}
param = self.read_param(param)
table_name = param['2']
table_number = param['70']
print '****', table_name, table_number
line1, line2 = self.read_record()
while line1 or line2:
if line1 == '0' and line2 == 'ENDTAB':
break
if table_name == 'LTYPE':
self.load_LTYPE()
elif table_name == 'LAYER':
self.load_LAYER()
elif table_name == 'STYLE':
self.load_STYLE()
line1, line2 = self.read_record()
def load_LTYPE(self):
param={ '2': '', # Linetype name
'3': '', # Descriptive text for linetype
#'73': 0, # The number of linetype elements
#'40': 0, # Total pattern length
'49': [], # Dash, dot or space length (one entry per element)
}
param = self.read_param(param, [0])
name = upper(param['2'])
if name:
self.ltype_dict[name] = param
dashes = []
for i in xrange(len(param['49'])):
dashes.append(abs(param['49'][i]) * self.unit_to_pt)
name3 = param['3']
#print name3, dashes
if name3 and dashes:
style = Style()
style.line_dashes = tuple(dashes)
style = style.AsDynamicStyle()
style.SetName(name + name3)
self.dynamic_style_dict[name] = style
def load_LAYER(self):
param={ '2': None, # Layer name
'6': None, #Linetype name
'62': 0, # Color number
'370': None, #Line weight
}
param = self.read_param(param, [0])
layer_name = param['2']
if layer_name:
self.layer_dict[layer_name]=param
self.layer(name = layer_name)
def load_STYLE(self):
param={ '2': None, # Style name
'70': 0, # Flag
'40': 0.0, # Fixed text height; 0 if not fixed
'41': 0.0, # Width factor
'42': 0.0, # Last height used
'50': 0.0, # Oblique angle
'71': 0, # Text generation flags
'3': None, # Primary font file name
'4': None, # Bigfont file name
'1000': None,
}
param = self.read_param(param, [0])
style_name = upper(param['2'])
self.style_dict[style_name] = param
################
# BLOCKS Section
#
def load_BLOCK(self):
param={ '2': '', # Block name
'10': 0.0, # X Base point
'20': 0.0, # Y Base point
#'30': 0.0, # Z Base point
'8': self.default_layer, # Layer name
'data': [], # block data
}
param = self.read_param(param)
block_name = param['2']
print '****', block_name
line1, line2 = self.read_record()
while line1 or line2:
if line1 == '0' and line2 == 'ENDBLK':
param = self.read_param(param)
break
param['data'].append(line1)
param['data'].append(line2)
line1, line2 = self.read_record()
param['data'].reverse()
self.block_dict[block_name] = param
# print self.block_dict[block_name]
################
# ENTITIES Section
#
def load_line(self):
param={ '10': None, # X coordinat
'20': None, # y coordinat
#'30': None, # Z coordinat
'11': None, # X coordinat endpoint
'21': None, # y coordinat endpoint
#'31': None, # z coordinat endpoint
}
param.update(self.general_param)
param = self.read_param(param)
self.path = CreatePath()
self.path.AppendLine(self.trafo(param['10'], param['20']))
self.path.AppendLine(self.trafo(param['11'], param['21']))
style = self.get_line_style(**param)
self.prop_stack.AddStyle(style.Duplicate())
self.bezier(self.path,)
def load_lwpolyline(self):
param={ '90': 0, # Number of vertices
'70': 0, # bit codes for Polyline entity
'40': None, # Starting width
'43': 0,
'370': None, #Line weight
}
param.update(self.general_param)
param = self.read_param(param,[10,20,42])
if param['40'] is not None:
line_width = param['40'] * self.unit_to_pt
else:
line_width = param['43'] * self.unit_to_pt
if param['370'] is not None:
line_width = param['370'] * self.unit_to_pt * 72.0 / 2.54 /1000
self.curstyle = self.get_line_style(**param)
# if Group 70 Flag bit value set 1 This is a closed Polyline
path_flag = param['70']
vertex_path = []
for i in xrange(param['90']):
vertex={ '10': None, # X coordinat
'20': None, # Y coordinat
'42': 0.0 # Bulge
}
# 10
line1, line2 = self.read_record()
vertex[line1] = convert(line1, line2, self.DWGCODEPAGE)
# 20
line1, line2 = self.read_record()
vertex[line1] = convert(line1, line2, self.DWGCODEPAGE)
# 42
line1, line2 = self.read_record()
if line1 == '42':
vertex[line1] = convert(line1, line2, self.DWGCODEPAGE)
else:
self.push_record(line1, line2)
vertex_path.append((vertex['10'], vertex['20'], vertex['42']))
self.load_seqend(vertex_path, path_flag)
def load_polyline(self):
param={ '70': 0, # bit codes for Polyline entity
'40': 0.01, #XXX FIXMY
}
param.update(self.general_param)
param = self.read_param(param)
self.vertex_path = []
self.curstyle.line_width=param['40'] * 72 # XXX self.unit_to_pt
self.curstyle.line_pattern = self.get_pattern(param['62'])
# if Group 70 Flag bit value set 1 This is a closed Polyline
self.path_flag = param['70']
def load_vertex(self):
param={#'62': 7, # color
#'6': 'CONTINUOUS', # style
'10': None, # X coordinat
'20': None, # Y coordinat
'42': 0.0 # Bulge
}
param = self.read_param(param)
self.vertex_path.append((param['10'], param['20'], param['42']))
def load_seqend(self, line = None, path_flag = None):
if line is None:
line = self.vertex_path
if path_flag is None:
path_flag = self.path_flag
if path_flag > 1:
print 'FIXMY. Curves and smooth surface type', path_flag
close_path = path_flag & 1 == 1
path = CreatePath()
if len(line):
for i in line:
x, y, bulge = i
#print x, y, bulge
path.AppendLine(self.trafo(x, y))
if close_path:
if path.Node(0) != path.Node(-1):
path.AppendLine(path.Node(0))
path.ClosePath()
self.prop_stack.AddStyle(self.curstyle.Duplicate())
self.bezier(path,)
def load_circle(self):
param={ '10': None, # X coordinat center
'20': None, # Y coordinat center
#'30': None, # Z coordinat center
'40': 0.0 # radius
}
param.update(self.general_param)
param = self.read_param(param)
x = param['10']
y = param['20']
r = param['40']
t = self.trafo(Trafo(r,0,0,r,x,y))
style = self.get_line_style(**param)
self.prop_stack.AddStyle(style.Duplicate())
apply(self.ellipse, t.coeff())
def load_arc(self):
param={ '10': None, # X coordinat center
'20': None, # Y coordinat center
#'30': None, # Z coordinat center
'40': 0.0, # radius
'50': 0.0, # Start angle
'51': 0.0 # End angle
}
param.update(self.general_param)
param = self.read_param(param)
cx = param['10']
cy = param['20']
rx = ry = param['40']
start_angle = param['50'] * degrees
end_angle = param['51'] * degrees
trafo = self.trafo(Trafo(rx, 0, 0, ry, cx, cy))
rx, w1, w2, ry, cx, cy = trafo.coeff()
style = self.get_line_style(**param)
self.prop_stack.AddStyle(style.Duplicate())
apply(self.ellipse, (rx, w1, w2, ry, cx, cy, start_angle, end_angle, ArcArc))
def load_ellips(self):
param={ '10': 0.0, # X coordinat center
'20': 0.0, # Y coordinat center
#'30': 0.0, # Z coordinat center
'11': 0.0, # Endpoint of major axis, relative to the center
'21': 0.0,
#'31': 0.0,
'40': 0.0, # Ratio of minor axis to major axis
'41': 0.0, # Start parameter (this value is 0.0 for a full ellipse)
'42': 0.0, # End parameter (this value is 2pi for a full ellipse)
}
param.update(self.general_param)
param = self.read_param(param)
cx = param['10']
cy = param['20']
rx = sqrt(param['21']**2 + param['11']**2)
ry = rx * param['40']
start_angle = param['41']
end_angle = param['42']
angle=atan2(param['21'], param['11'])
center = self.trafo(cx, cy)
radius = self.trafo.DTransform(rx, ry)
trafo = Trafo(radius.x, 0, 0, radius.y)
trafo = Rotation(angle)(trafo)
trafo = Translation(center)(trafo)
rx, w1, w2, ry, cx, cy = trafo.coeff()
style = self.get_line_style(**param)
self.prop_stack.AddStyle(style.Duplicate())
apply(self.ellipse, (rx, w1, w2, ry, cx, cy, start_angle, end_angle, ArcArc))
def load_point(self):
param={ '10': None, # X coordinat center
'20': None, # Y coordinat center
#'30': None, # Z coordinat center
}
param.update(self.general_param)
param = self.read_param(param)
x = param['10']
y = param['20']
r = 0.3
t = self.trafo(Trafo(r,0,0,r,x,y))
style = self.curstyle.Duplicate()
style.line_pattern = EmptyPattern
style.fill_pattern = self.get_pattern(param['62'])
self.prop_stack.AddStyle(style.Duplicate())
apply(self.ellipse, t.coeff())
def load_solid(self):
param={ '10': None,
'20': None,
#'30': None,
'11': None,
'21': None,
#'31': None,
'12': None,
'22': None,
#'32': None,
'13': None,
'23': None,
#'33': None,
}
param.update(self.general_param)
param = self.read_param(param)
style = self.curstyle.Duplicate()
style.line_pattern = EmptyPattern
style.fill_pattern = self.get_pattern(param['62'])
self.path = CreatePath()
self.path.AppendLine(self.trafo(param['10'], param['20']))
self.path.AppendLine(self.trafo(param['11'], param['21']))
self.path.AppendLine(self.trafo(param['12'], param['22']))
self.path.AppendLine(self.trafo(param['13'], param['23']))
self.path.ClosePath()
self.prop_stack.AddStyle(style.Duplicate())
self.bezier(self.path,)
def load_insert(self):
param={ '2': None, # Block name
'10': 0.0, # X coordinat
'20': 0.0, # Y coordinat
#'30': 0.0, # Z coordinat
'41': 1.0, # X scale factor
'42': 1.0, # Y scale factor
#'43': 1.0, # Z scale factor
'50': 0.0, # Rotation angle
'66': 0, # Attributes-follow flag
}
param = self.read_param(param)
block_name = self.default_block = param['2']
if block_name:
self.stack += ['POP_TRAFO', '0'] + self.block_dict[block_name]['data']
self.push_trafo()
x = param['10']
y = param['20']
block_x = self.block_dict[block_name]['10']
block_y = self.block_dict[block_name]['20']
scale_x = param['41'] * self.trafo.m11
scale_y = param['42'] * self.trafo.m22
angle = param['50'] * degrees
translate = self.trafo(x, y)
trafo = Trafo(1, 0, 0, 1, -block_x, -block_y)
trafo = Scale(scale_x,scale_y)(trafo)
trafo = Rotation(angle)(trafo)
trafo = Translation(translate)(trafo)
self.trafo = trafo
if param['66'] != 0:
line1, line2 = self.read_record()
while line1 or line2:
if line1 == '0' and line2 == 'SEQEND':
break
else:
if line1 == '0':
self.run(line2)
line1, line2 = self.read_record()
def load_text(self):
param={ '10': 0.0,
'20': 0.0,
'40': None, # Text height
'1': '', # Default value
'50': 0, # Text rotation
'41': 1, # Relative X scale factor—width
# '8': self.default_layer, # Layer name
'7': self.default_style, # Style name
'72': 0, #Horizontal text justification type
}
param.update(self.general_param)
param = self.read_param(param)
x = param['10']
y = param['20']
scale_x = param['41']
scale_y = 1
angle = param['50'] * pi / 180
font_size = param['40'] * self.trafo.m11
halign = [ALIGN_LEFT, ALIGN_CENTER, ALIGN_RIGHT, \
ALIGN_LEFT, ALIGN_LEFT, ALIGN_LEFT][param['72']]
text = unicode_decoder(param['1'], self.DWGCODEPAGE)
#style = self.style_dict[param['7']]
# print style
style_text = self.curstyle.Duplicate()
style_text.line_pattern = EmptyPattern
style_text.fill_pattern = self.get_pattern(param['62'])
style_name = upper(param['7'])
style = self.style_dict[style_name]
font_name = style['1000']
if font_name == 'Arial': # XXX
font_name = 'ArialMT'
style_text.font = GetFont(font_name)
# print style_text.font
style_text.font_size = font_size
trafo_text = Translation(self.trafo(x, y))(Rotation(angle))(Scale(scale_x, scale_y))
self.prop_stack.AddStyle(style_text.Duplicate())
self.simple_text(strip(text), trafo_text, halign = halign)
def load_3dface(self):
param={ '10': None,
'20': None,
#'30': None,
'11': None,
'21': None,
#'31': None,
'12': None,
'22': None,
#'32': None,
'13': None,
'23': None,
#'33': None,
'70': 0, # Invisible edge flags
}
param.update(self.general_param)
param = self.read_param(param)
self.path = CreatePath()
if param['70'] != 0:
print 'FIXMY. 3dface Invisible edge flags', param['70']
self.path.AppendLine(self.trafo(param['10'], param['20']))
self.path.AppendLine(self.trafo(param['11'], param['21']))
self.path.AppendLine(self.trafo(param['12'], param['22']))
self.path.AppendLine(self.trafo(param['13'], param['23']))
self.path.ClosePath()
style = self.get_line_style(**param)
self.prop_stack.AddStyle(style.Duplicate())
self.bezier(self.path,)
def load_spline(self):
param={ '70': 0, # Spline flag
'71': 0, # Degree of the spline curve
'72': 0, # Number of knots
'73': 0, # Number of control points
'74': 0, # Number of fit points
'40': [], # Knot value
'10': [], # Control points X
'20': [], # Control points Y
#'30': [], # Control points Z
}
param.update(self.general_param)
param = self.read_param(param)
closed = param['70'] & 1
path = CreatePath()
f13 = 1.0 / 3.0
f23 = 2.0 / 3.0
curve = path.AppendBezier
straight = path.AppendLine
pts = map(lambda x, y: self.trafo(x, y), param['10'],param['20'])
print 'SPLINE', param['70'], len(pts)
#for i in range(0, len(pts)-1):
#self.ellipse(.2, 0, 0, .2, pts[i][0],pts[i][1])
if param['70'] <= 1:
straight(pts[0])
for i in range(1, len(pts) / 4):
node = pts[i * 4]
c1 = pts[i * 4 - 3]
c2 = pts[i * 4 - 2]
print c1, c2, node
curve(c1, c2, node)
#straight(node)
if closed:
curve(pts[-3], pts[-2], pts[0])
else:
curve(pts[-4], pts[-4], pts[-1])
if param['70'] & 4 == 4:
last = pts[0]
cur = pts[1]
start = node = (last + cur) / 2
if closed:
straight(node)
else:
straight(last)
straight(node)
last = cur
for cur in pts[2:]:
c1 = f13 * node + f23 * last
node = (last + cur) / 2
c2 = f13 * node + f23 * last
curve(c1, c2, node)
last = cur
if closed:
curve(f13 * node + f23 * last, f13 * start + f23 * last, start)
else:
straight(last)
if param['70'] & 8 == 8:
node = pts[0]
c1 = pts[1]
c2 = pts[2]
# first node
straight(node)
if len(pts) > 4:
c2 = (pts[2] + pts[1]) / 2
c3 = pts[3] * f13 + pts[2] * f23
node = (c3 + c2) / 2
curve(c1, c2, node)
c1 = c3
for i in range(3, len(pts) - 3):
c2 = pts[i - 1] * f13 + pts[i] * f23
c3 = pts[i] * f23 + pts[i + 1] * f13
node = (c3 + c2) / 2
curve(c1, c2, node)
c1 = c3
c2 = pts[-4] * f13 + pts[-3] * f23
c3 = (pts[-3] + pts[-2]) / 2
node = (c3 + c2) / 2
curve(c1, c2, node)
c1 = c3
# last node
curve(c1, pts[-2], pts[-1])
style = self.get_line_style(**param)
self.prop_stack.AddStyle(style.Duplicate())
self.bezier(path,)
def load_bypass(self):
pass
###########################################################################
def get_compiled(self):
funclist={}
for char, name in self.functions.items():
method = getattr(self, name)
argc = method.im_func.func_code.co_argcount - 1
funclist[char] = (method, argc)
return funclist
def push_record(self, line1, line2):
# save data in stack
self.stack.append(line2)
self.stack.append(line1)
def read_record(self):
# if the stack is empty read two lines from a file
if self.stack:
line1 = self.stack.pop()
line2 = self.stack.pop()
else:
line1 = self.file.readline().strip()
line2 = self.file.readline().strip()
return line1, line2
def read_param(self, param, stop=None):
# read data and fill in the dictionary
if stop is None:
stop = [0, 9]
line1, line2 = self.read_record()
while line1 or line2:
if int(line1) in stop:
self.push_record(line1, line2)
return param
else:
if line1 in param:
value = convert(line1, line2, self.DWGCODEPAGE)
if type(param[line1]) == list:
param[line1].append(value)
else:
param[line1] = value
line1,line2 = self.read_record()
return False
def find_record(self, code1, code2):
# read data until to not overlap line1 == code1 and line2 == code2
# return True
# else return False
line1, line2 = self.read_record()
while line1 or line2:
if line1 == code1 and line2 == code2:
return True
line1, line2 = self.read_record()
return False
def load_section(self):
return_code = False
file = self.file
parsed = self.parsed
parsed_interval = self.parsed_interval
line1, line2 = self.read_record()
while line1 or line2:
interval_count = file.tell() / parsed_interval
if interval_count > parsed:
parsed += 10 # 10% progress
app.updateInfo(inf2 = '%u' % parsed + _('% of file is parsed...'), inf3 = parsed)
if line1 == '0' and line2 == 'ENDSEC':
return_code = True
break
elif line1 == '0':
self.run(line2)
line1, line2 = self.read_record()
self.parsed = parsed
return return_code
def load_sections(self):
return_code = False
param={ '2': '', # name section
}
param = self.read_param(param)
name=param['2']
print '**',name
if name == 'HEADER':
return_code, header_dict = self.load_HEADER()
self.process_header(header_dict)
elif name == 'CLASSES':
return_code = self.find_record('0','ENDSEC')
elif name == 'OBJECTS':
return_code = self.find_record('0','ENDSEC')
elif name == 'THUMBNAILIMAGE':
return_code = self.find_record('0','ENDSEC')
else:
return_code = self.load_section()
return return_code
def interpret(self):
file = self.file
if type(file) == StringType:
file = open(file, 'r')
file.seek(0)
readline = file.readline
fileinfo = os.stat(self.filename)
totalsize = fileinfo[6]
self.parsed = 0
self.parsed_interval = totalsize / 99 + 1
line1, line2 = self.read_record()
while line1 or line2:
if line1 == '0':
if line2 == 'EOF':
break
elif not self.load_sections():
warn_tb(INTERNAL, _('DXFLoader: error. Non find end of sections'))
line1, line2 = self.read_record()
def run(self,keyword, *args):
if keyword is None:
return
return_code = False
unknown_operator = (None, None)
funclist = self.funclist
if keyword is not None:
method, argc = funclist.get(keyword, unknown_operator)
if method is not None:
try:
##print '******', keyword
if len(args):
i = 0
while i<len(args):
return_code = apply(method, args[i:argc+i])
i+=argc
else:
return_code = method()
except:
warn_tb(INTERNAL, 'DXFLoader: error')
else:
self.add_message(_('Not interpreted %s') % keyword)
return return_code
def Load(self):
import time
start_time = time.clock()
#print ' ************ "DXF_objects" **************'
self.funclist = self.get_compiled()
self.document()
self.layer(name = _("DXF_objects"))
self.interpret()
self.end_all()
for style in self.dynamic_style_dict.values():
self.object.load_AddStyle(style)
self.object.load_Completed()
print 'times',time.clock() - start_time
return self.object
def parse_path(self, str):
paths = self.paths
path = self.path
trafo = self.trafo
str = strip(string.translate(as_latin1(str), commatospace))
last_quad = None
last_cmd = cmd = None
f13 = 1.0 / 3.0; f23 = 2.0 / 3.0
#print '*', str
while 1:
match = rx_command.match(str)
#print match
if match:
last_cmd = cmd
cmd = str[0]
str = str[match.end():]
#print '*', str
points = match.group(1)
#print '**', points
if points:
# use tokenize_line to parse the arguments so that
# we deal with signed numbers following another
# number without intervening whitespace other
# characters properls.
# FIXME: tokenize_line works but is not the best way
# to do it because it accepts input that wouldn't be
# valid here.
points = filter(operator.isNumberType,
skread.tokenize_line(points))
#print cmd, points
if cmd in 'mM':
path = CreatePath()
paths.append(path)
if cmd == 'M' or len(paths) == 1:
path.AppendLine(trafo(points[0], points[1]))
else:
p = trafo.DTransform(points[0], points[1])
path.AppendLine(paths[-2].Node(-1) + p)
if len(points) > 2:
if cmd == 'm':
for i in range(2, len(points), 2):
p = trafo.DTransform(points[i], points[i + 1])
path.AppendLine(path.Node(-1) + p)
else:
for i in range(2, len(points), 2):
path.AppendLine(trafo(points[i], points[i+1]))
elif cmd == 'l':
for i in range(0, len(points), 2):
p = trafo.DTransform(points[i], points[i + 1])
path.AppendLine(path.Node(-1) + p)
elif cmd == 'L':
for i in range(0, len(points), 2):
path.AppendLine(trafo(points[i], points[i+1]))
elif cmd =='H':
for num in points:
path.AppendLine(Point(num, path.Node(-1).y))
elif cmd =='h':
for num in points:
x, y = path.Node(-1)
dx, dy = trafo.DTransform(num, 0)
path.AppendLine(Point(x + dx, y + dy))
elif cmd =='V':
for num in points:
path.AppendLine(Point(path.Node(-1).x, num))
elif cmd =='v':
for num in points:
x, y = path.Node(-1)
dx, dy = trafo.DTransform(0, num)
path.AppendLine(Point(x + dx, y + dy))
elif cmd == 'C':
if len(points) % 6 != 0:
self.loader.add_message("number of parameters of 'C'"\
"must be multiple of 6")
else:
for i in range(0, len(points), 6):
p1 = trafo(points[i], points[i + 1])
p2 = trafo(points[i + 2], points[i + 3])
p3 = trafo(points[i + 4], points[i + 5])
path.AppendBezier(p1, p2, p3)
elif cmd == 'c':
if len(points) % 6 != 0:
self.loader.add_message("number of parameters of 'c'"\
"must be multiple of 6")
else:
for i in range(0, len(points), 6):
p = path.Node(-1)
p1 = p + trafo.DTransform(points[i], points[i + 1])
p2 = p + trafo.DTransform(points[i+2], points[i+3])
p3 = p + trafo.DTransform(points[i+4], points[i+5])
path.AppendBezier(p1, p2, p3)
elif cmd == 'S':
if len(points) % 4 != 0:
self.loader.add_message("number of parameters of 'S'"\
"must be multiple of 4")
else:
for i in range(0, len(points), 4):
type, controls, p, cont = path.Segment(-1)
if type == Bezier:
q = controls[1]
else:
q = p
p1 = 2 * p - q
p2 = trafo(points[i], points[i + 1])
p3 = trafo(points[i + 2], points[i + 3])
path.AppendBezier(p1, p2, p3)
elif cmd == 's':
if len(points) % 4 != 0:
self.loader.add_message("number of parameters of 's'"\
"must be multiple of 4")
else:
for i in range(0, len(points), 4):
type, controls, p, cont = path.Segment(-1)
if type == Bezier:
q = controls[1]
else:
q = p
p1 = 2 * p - q
p2 = p + trafo.DTransform(points[i], points[i + 1])
p3 = p + trafo.DTransform(points[i+2], points[i+3])
path.AppendBezier(p1, p2, p3)
elif cmd == 'Q':
if len(points) % 4 != 0:
self.loader.add_message("number of parameters of 'Q'"\
"must be multiple of 4")
else:
for i in range(0, len(points), 4):
q = trafo(points[i], points[i + 1])
p3 = trafo(points[i + 2], points[i + 3])
p1 = f13 * path.Node(-1) + f23 * q
p2 = f13 * p3 + f23 * q
path.AppendBezier(p1, p2, p3)
last_quad = q
elif cmd == 'q':
if len(points) % 4 != 0:
self.loader.add_message("number of parameters of 'q'"\
"must be multiple of 4")
else:
for i in range(0, len(points), 4):
p = path.Node(-1)
q = p + trafo.DTransform(points[i], points[i + 1])
p3 = p + trafo.DTransform(points[i+2], points[i+3])
p1 = f13 * p + f23 * q
p2 = f13 * p3 + f23 * q
path.AppendBezier(p1, p2, p3)
last_quad = q
elif cmd == 'T':
if len(points) % 2 != 0:
self.loader.add_message("number of parameters of 'T'"\
"must be multiple of 4")
else:
if last_cmd not in 'QqTt' or last_quad is None:
last_quad = path.Node(-1)
for i in range(0, len(points), 2):
p = path.Node(-1)
q = 2 * p - last_quad
p3 = trafo(points[i], points[i + 1])
p1 = f13 * p + f23 * q
p2 = f13 * p3 + f23 * q
path.AppendBezier(p1, p2, p3)
last_quad = q
elif cmd == 't':
if len(points) % 2 != 0:
self.loader.add_message("number of parameters of 't'"\
"must be multiple of 4")
else:
if last_cmd not in 'QqTt' or last_quad is None:
last_quad = path.Node(-1)
for i in range(0, len(points), 2):
p = path.Node(-1)
q = 2 * p - last_quad
p3 = p + trafo.DTransform(points[i], points[i + 1])
p1 = f13 * p + f23 * q
p2 = f13 * p3 + f23 * q
path.AppendBezier(p1, p2, p3)
last_quad = q
elif cmd in 'zZ':
if round(path.Node(0).x, 3) != round(path.Node(-1).x, 3) or \
round(path.Node(0).y, 3) != round(path.Node(-1).y, 3):
path.AppendLine(path.Node(0))
path.ClosePath()
else:
break
self.path = path
class PLTLoader(GenericLoader):
functions = {
"IN": 'initialize',
"SP": 'select_pen',
"PD": 'pen_down',
"PU": 'pen_up',
"PA": 'plot_absolute',
"PR": 'plot_relative',
"PW": 'pen_sizes',
#"PT": 'pen_metric',
#"PL": 'pen_plu',
"LT": 'linetype',
"AA": 'arc_absolute',
"AR": 'arc_relative',
"CI": 'circle_plot',
}
def __init__(self, file, filename, match):
GenericLoader.__init__(self, file, filename, match)
self.file = file
self.initialize()
def get_position(self, x, y, absolute=None):
if absolute is None:
absolute = self.absolute
if x == '' is not None:
x = self.cur_x
else:
x = float(x) / plu
if absolute == 0:
x += self.cur_x
if y == '' is not None:
y = self.cur_y
else:
y = float(y) / plu
if absolute == 0:
y += self.cur_y
return x, y
def bezier(self):
if self.path.len > 1:
if self.path.Node(0) == self.path.Node(-1):
self.path.load_close(1)
self.prop_stack.AddStyle(self.curstyle.Duplicate())
GenericLoader.bezier(self, paths=(self.path, ))
self.path = CreatePath()
def arc_absolute(self, x, y, qc, qd=5):
x, y = self.get_position(x, y, 1)
self.arc(x, y, qc, qd)
def arc_relative(self, x, y, qc, qd=5):
x, y = self.get_position(x, y, 0)
self.arc(x, y, qc, qd)
def arc(self, x, y, qc, qd=5):
qc = float(qc) * degrees
x2 = self.cur_x - x
y2 = self.cur_y - y
r = hypot(x2, y2)
if qc < 0:
end_angle = atan2(y2, x2)
angle = start_angle = end_angle + qc
else:
start_angle = atan2(y2, x2)
angle = end_angle = start_angle + qc
self.cur_x = (x + r * cos(angle))
self.cur_y = (y + r * sin(angle))
if self.draw == 1:
self.pen_up()
self.pen_down()
self.prop_stack.AddStyle(self.curstyle.Duplicate())
apply(self.ellipse,
(r, 0, 0, r, x, y, start_angle, end_angle, ArcArc))
def circle_plot(self, r, qd=5):
x, y = self.cur_x, self.cur_y
r = float(r) / plu
#self.bezier()
self.prop_stack.AddStyle(self.curstyle.Duplicate())
apply(self.ellipse, (r, 0, 0, r, x, y))
def move(self, x, y):
if self.draw == 1:
self.path.AppendLine(x, y)
else:
self.bezier()
self.path.AppendLine(x, y)
self.cur_x = x
self.cur_y = y
def pen_down(self, x='', y=''):
self.draw = 1
if x != '' is not None:
x, y = self.get_position(x, y)
self.move(x, y)
def pen_up(self, x='', y=''):
self.draw = 0
x, y = self.get_position(x, y)
self.move(x, y)
def plot_absolute(self, x='', y=''):
self.absolute = 1
if x != '' is not None:
x, y = self.get_position(x, y)
self.move(x, y)
def plot_relative(self, x='', y=''):
self.absolute = 0
if x != '' is not None:
x, y = self.get_position(x, y)
self.move(x, y)
def initialize(self):
self.curstyle = Style()
self.curstyle.line_join = JoinRound
self.curstyle.line_cap = CapRound
self.cur_x = 0.0
self.cur_y = 0.0
self.draw = 0
self.absolute = 1
self.path = CreatePath()
self.curpen = None
self.penwidth = {}
self.select_pen()
def select_pen(self, pen='1'):
if not pen in colors:
pen = '1'
if not pen in self.penwidth:
width = def_width_pen
else:
width = self.penwidth[pen]
if not self.curpen == pen:
if self.draw == 1:
self.pen_up()
self.pen_down()
patern = SolidPattern(colors[pen])
self.curstyle.line_pattern = patern
self.curstyle.line_width = width
self.curpen = pen
def linetype(self, n='0', p='10', q=''):
n = abs(int(n))
#p = float(p)
p = 20
dash = [
[],
[0, p],
[p * 0.5, p * 0.5],
[p * 0.7, p * 0.3],
[p * 0.8, p * 0.1, p * 0.1, 0],
[p * 0.7, p * 0.1, p * 0.1, p * 0.1],
[p * 0.5, p * 0.1, p * 0.1, p * 0.1, p * 0.2, 0],
[p * 0.7, p * 0.1, 0, p * 0.1, 0, p * 0.1],
[p * 0.5, p * 0.1, 0, p * 0.1, p * 0.1, p * 0.1, p * 0.1, 0],
[p, p],
[p, p],
[p, p],
]
self.curstyle.line_dashes = dash[n]
def pen_sizes(self, width, pen=None):
if pen is None:
pen = self.curpen
self.penwidth[pen] = float(width) * 72 / 25.4
self.curpen = None
self.select_pen(pen)
def get_compiled(self):
funclist = {}
for char, name in self.functions.items():
method = getattr(self, name)
argc = method.im_func.func_code.co_argcount - 1
funclist[char] = (method, argc)
return funclist
def interpret(self):
import shlex
def is_number(a):
try:
i = float(a)
except ValueError:
return 0
return 1
file = self.file
if type(file) == StringType:
file = open(file, 'r')
file.seek(0)
readline = file.readline
fileinfo = os.stat(self.filename)
totalsize = fileinfo[6]
lexer = shlex.shlex(file)
lexer.debug = 0
lexer.wordchars = lexer.wordchars + ".-+"
lexer.whitespace = lexer.whitespace + ';,'
keyword = None
args = []
parsed = 0
parsed_interval = totalsize / 99 + 1
while 1:
interval_count = file.tell() / parsed_interval
if interval_count > parsed:
parsed += 10 # 10% progress
app.updateInfo(inf2='%u' % parsed +
_('% of file is parsed...'),
inf3=parsed)
token = lexer.get_token()
if not token:
# run last command
self.run(keyword, args)
# pun up
self.run('PU', [])
# END INTERPRETATION
app.updateInfo(inf2=_('Parsing is finished'), inf3=100)
break
if keyword and is_number(token):
args.append(token)
else:
self.run(keyword, args)
keyword = token[0:2]
args = []
if token[2:]:
lexer.push_token(token[2:])
def run(self, keyword, args):
if keyword is None:
return
unknown_operator = (None, None)
funclist = self.funclist
if keyword is not None:
method, argc = funclist.get(keyword, unknown_operator)
if method is not None:
#print method.__name__, args
try:
if len(args):
i = 0
while i < len(args):
apply(method, args[i:argc + i])
i += argc
else:
method()
except:
warn_tb(INTERNAL, 'PLTLoader: error')
def Load(self):
self.funclist = self.get_compiled()
self.document()
self.layer(name=_("PLT_objects"))
self.interpret()
self.end_all()
self.object.load_Completed()
return self.object