def read_path(filename):
path = CreatePath()
paths = [path]
points = []
file = open(filename)
closed = 0
for line in file.readlines():
try:
key, rest = split(line, ':', 1)
except:
continue
if key == 'TYPE':
rest = lstrip(rest)
match = rx_point.match(rest)
if match is not None:
type = int(match.group('type'))
p = Point(float(match.group('x')), float(match.group('y')))
if type == BEZIER_MOVE:
if closed and points:
path.AppendBezier(points[0], points[1], path.Node(0))
path.ClosePath()
points = []
path = CreatePath()
paths.append(path)
path.AppendLine(p)
elif type == BEZIER_ANCHOR:
if path.len == 0:
path.AppendLine(p)
else:
if path.Node(-1) == points[0] and points[1] == p:
path.AppendLine(p)
else:
path.AppendBezier(points[0], points[1], p)
points = []
elif type == BEZIER_CONTROL:
points.append(p)
elif key == 'CLOSED':
closed = int(rest)
if closed and points:
if path.Node(-1) == points[0] and points[1] == path.Node(0):
path.AppendLine(path.Node(0))
else:
path.AppendBezier(points[0], points[1], path.Node(0))
path.ClosePath()
return tuple(paths)
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 read_objects(self, objects):
n_objects = 0
# Traverse the list of drawfile object
for object in objects:
if isinstance(object, drawfile.group):
# Start a group object in the document
self.begin_group()
# Descend into the group
n_objects_lower = self.read_objects(object.objects)
# If the group was empty then don't try to end it
if n_objects_lower == 0:
# self.__pop()
(self.composite_class, self.composite_args,
self.composite_items,
self.composite_stack) = self.composite_stack
else:
# End group object
self.end_group()
n_objects = n_objects + 1
elif isinstance(object, drawfile.tagged):
# Tagged object
n_objects_lower = self.read_objects([object.object])
if n_objects_lower != 0:
n_objects = n_objects + 1
elif isinstance(object, drawfile.path):
# Path object
n_objects = n_objects + 1
# Set the path style
self.style.line_width = object.width / scale
if object.style['join'] == 'mitred':
self.style.line_join = const.JoinMiter
if object.style['start cap'] == 'butt':
self.style.line_cap = const.CapButt
elif object.style['start cap'] == 'round':
if object.width > 0:
width = 0.5
length = 0.5
else:
width = 0.0
length = 0.0
# Draw arrow
path = [(0.0, width),
(0.5 * length, width, length, 0.5 * width, length,
0.0),
(length, -0.5 * width, 0.5 * length, -width, 0.0,
-width), (0.0, width)]
self.style.line_arrow1 = Arrow(path, 1)
elif object.style['start cap'] == 'square':
if object.width > 0:
width = 0.5
length = 0.5
else:
width = 0.0
length = 0.0
# Draw arrow
path = [(0.0, width), (length, width), (length, -width),
(0.0, -width), (0.0, width)]
self.style.line_arrow1 = Arrow(path, 1)
elif object.style['start cap'] == 'triangular':
if object.width > 0:
width = object.style['triangle cap width'] / 16.0
length = object.style['triangle cap length'] / 16.0
else:
width = 0.0
length = 0.0
# Draw arrow
path = [(0.0, width), (length, 0.0), (0.0, -width),
(0.0, width)]
self.style.line_arrow1 = Arrow(path, 1)
if (object.width / scale) < 1.0:
self.style.line_arrow1.path.Transform(
Scale(object.width / scale, object.width / scale))
if object.style['end cap'] == 'butt':
self.style.line_cap = const.CapButt
elif object.style['end cap'] == 'round':
if object.width > 0:
width = 0.5
length = 0.5
else:
width = 0.0
length = 0.0
# Draw arrow
path = [(0.0, width),
(0.5 * length, width, length, 0.5 * width, length,
0.0),
(length, -0.5 * width, 0.5 * length, -width, 0.0,
-width), (0.0, width)]
self.style.line_arrow2 = Arrow(path, 1)
elif object.style['end cap'] == 'square':
if object.width > 0:
width = 0.5
length = 0.5
else:
width = 0.0
length = 0.0
# Draw arrow
path = [(0.0, width), (length, width), (length, -width),
(0.0, -width), (0.0, width)]
self.style.line_arrow2 = Arrow(path, 1)
elif object.style['end cap'] == 'triangular':
if object.width > 0:
width = object.style['triangle cap width'] / 16.0
length = object.style['triangle cap length'] / 16.0
else:
width = 0.0
length = 0.0
# Draw arrow
path = [(0.0, width), (length, 0.0), (0.0, -width),
(0.0, width)]
self.style.line_arrow2 = Arrow(path, 1)
if (object.width / scale) < 1.0:
self.style.line_arrow2.path.Transform(
Scale(object.width / scale, object.width / scale))
# Outline colour
if object.outline == [255, 255, 255, 255]:
self.style.line_pattern = EmptyPattern
else:
self.style.line_pattern = SolidPattern(
CreateRGBColor(
float(object.outline[1]) / 255.0,
float(object.outline[2]) / 255.0,
float(object.outline[3]) / 255.0))
# Fill colour
if object.fill == [255, 255, 255, 255]:
self.style.fill_pattern = EmptyPattern
else:
self.style.fill_pattern = SolidPattern(
CreateRGBColor(
float(object.fill[1]) / 255.0,
float(object.fill[2]) / 255.0,
float(object.fill[3]) / 255.0))
# Dash pattern
if object.style['dash pattern'] == 'present':
line_dashes = []
for n in object.pattern:
line_dashes.append(int(n / scale))
self.style.line_dashes = tuple(line_dashes)
# Create a list of path objects in the document
paths = []
path = None
# Examine the path elements
for element in object.path:
if element[0] == 'move':
x, y = self.relative(element[1][0], element[1][1])
# Add any previous path to the list
if path != None:
# path.load_close()
paths.append(path)
path = CreatePath()
path.AppendLine(x, y)
elif element[0] == 'draw':
x, y = self.relative(element[1][0], element[1][1])
path.AppendLine(x, y)
elif element[0] == 'bezier':
x1, y1 = self.relative(element[1][0], element[1][1])
x2, y2 = self.relative(element[2][0], element[2][1])
x, y = self.relative(element[3][0], element[3][1])
path.AppendBezier(x1, y1, x2, y2, x, y)
elif element[0] == 'close':
path.ClosePath()
elif element[0] == 'end':
# Should be the last object in the path
# path.load_close()
paths.append(path)
break
# Create a bezier object
if paths != []:
self.bezier(tuple(paths))
elif isinstance(object, drawfile.font_table):
# Font table
n_objects = n_objects + 1
# Set object level instance
self.font_table = object.font_table
elif isinstance(object, drawfile.text):
# Text object
n_objects = n_objects + 1
# Determine the font
if self.font_table.has_key(object.style):
self.style.font = RISCOSFont(self.font_table[object.style])
else:
self.style.font = GetFont('Times Roman')
# The size
self.style.font_size = object.size[0] / scale
# Outline colour
if object.background == [255, 255, 255, 255]:
self.style.line_pattern = EmptyPattern
else:
self.style.line_pattern = SolidPattern(
CreateRGBColor(
float(object.background[1]) / 255.0,
float(object.background[2]) / 255.0,
float(object.background[3]) / 255.0))
# Fill colour
if object.foreground == [255, 255, 255, 255]:
self.style.fill_pattern = EmptyPattern
else:
self.style.fill_pattern = SolidPattern(
CreateRGBColor(
float(object.foreground[1]) / 255.0,
float(object.foreground[2]) / 255.0,
float(object.foreground[3]) / 255.0))
# Transformation
if hasattr(object, 'transform'):
x, y = object.transform[4] / scale, object.transform[
5] / scale
ox, oy = self.relative(object.baseline[0],
object.baseline[1])
transform = Trafo(object.transform[0] / 65536.0,
object.transform[1] / 65536.0,
object.transform[2] / 65536.0,
object.transform[3] / 65536.0, ox + x,
oy + y)
else:
transform = Translation(
self.relative(object.baseline[0], object.baseline[1]))
# Write the text
self.simple_text(object.text, transform)
elif isinstance(object, drawfile.jpeg):
# JPEG object
n_objects = n_objects + 1
# Transformation matrix
x, y = self.relative(object.transform[4], object.transform[5])
# Scale the object using the dpi information available, noting
# that unlike Draw which uses 90 dpi, Sketch uses 72 dpi.
# (I assume this since 90 dpi Drawfile JPEG objects appear 1.25
# times larger in Sketch if no scaling is performed here.)
scale_x = (object.transform[0] / 65536.0) * (72.0 /
object.dpi_x)
scale_y = (object.transform[3] / 65536.0) * (72.0 /
object.dpi_y)
transform = Trafo(scale_x, object.transform[1] / 65536.0,
object.transform[2] / 65536.0, scale_y, x, y)
# Decode the JPEG image
image = Image.open(StringIO.StringIO(object.image))
# # Read dimensions of images in pixels
# width, height = image.size
#
# # Divide these by the dpi values to obtain the size of the
# # image in inches
# width, height = width/float(object.dpi_x), \
# height/float(object.dpi_y)
# image.load()
self.image(image, transform)
elif isinstance(object, drawfile.sprite):
# Sprite object
n_objects = n_objects + 1
# Transformation matrix
if hasattr(object, 'transform'):
x, y = self.relative(object.transform[4],
object.transform[5])
# Multiply the scale factor by that in the transformation matrix
scale_x = (object.transform[0]/65536.0) * \
(72.0 / object.sprite['dpi x'])
scale_y = (object.transform[3]/65536.0) * \
(72.0 / object.sprite['dpi y'])
transform = Trafo( scale_x,
(object.transform[1]/65536.0) * \
(72.0 / object.sprite['dpi y']),
(object.transform[2]/65536.0) * \
(72.0 / object.sprite['dpi x']),
scale_y,
x, y )
else:
x, y = self.relative(object.x1, object.y1)
# Draw scales the Sprite to fit in the object's
# bounding box. To do the same, we need to know the
# actual size of the Sprite
# In points:
# size_x = 72.0 * float(object.sprite['width']) / \
# object.sprite['dpi x']
# size_y = 72.0 * float(object.sprite['height']) / \
# object.sprite['dpi y']
#
# # Bounding box dimensions in points:
# bbox_width = (object.x2 - object.x1)/scale
# bbox_height = (object.y2 - object.y1)/scale
#
# # Scale factors
# scale_x = (bbox_width / size_x) * \
# (72.0 / object.sprite['dpi x'])
# scale_y = (bbox_height / size_y) * \
# (72.0 / object.sprite['dpi y'])
scale_x = (object.x2 - object.x1) / \
(scale * object.sprite['width'])
scale_y = (object.y2 - object.y1) / \
(scale * object.sprite['height'])
transform = Trafo(scale_x, 0.0, 0.0, scale_y, x, y)
# Create an Image object
image = Image.fromstring(
object.sprite['mode'],
(object.sprite['width'], object.sprite['height']),
object.sprite['image'])
self.image(image, transform)
elif isinstance(object, drawfile.options):
# Options object
n_objects = n_objects + 1
# Read page size
paper_size = object.options['paper size']
orientation = object.options['paper limits']
if paper_size in papersizes:
if orientation == 'landscape':
self.page_layout = pagelayout.PageLayout(
object.options['paper size'],
orientation=pagelayout.Landscape)
else:
self.page_layout = pagelayout.PageLayout(
object.options['paper size'],
orientation=pagelayout.Portrait)
if object.options['grid locking'] == 'on':
spacing = object.options['grid spacing']
if object.options['grid units'] == 'in':
spacing = spacing * 72.0
else:
spacing = spacing * 72.0 / 2.54
if object.options['grid shown'] == 'on':
visible = 1
else:
visible = 0
# self.begin_layer_class( GridLayer,
# (
# (0, 0, int(spacing), int(spacing)),
# visible,
# CreateRGBColor(0.0, 0.0, 0.0),
# _("Grid")
# ) )
# self.end_composite()
elif isinstance(object, drawfile.text_area):
# Text area
n_objects = n_objects + 1
# The text area object contains a number of columns.
self.columns = len(object.columns)
# Start in the first column and move to subsequent
# columns as required, unless the number is overidden
# by details in the text area.
self.column = 0
# The cursor position is initially undefined.
cursor = [None, None]
# The column margins
self.margin_offsets = [1.0, 1.0]
self.margins = [ (object.columns[self.column].x1 / scale) + \
self.margin_offsets[0],
(object.columns[self.column].x2 / scale) - \
self.margin_offsets[1] ]
# The column base
self.column_base = object.columns[self.column].y1 / scale
# Line and paragraph spacing
self.linespacing = 0.0
paragraph = 10.0
# Current font name and dimensions
font_name = ''
font_size = 0.0
font_width = 0.0
# Text colours
background = (255, 255, 255)
foreground = (0, 0, 0)
# Build lines (lists of words) until the column width
# is reached then write the line to the page.
line = []
width = 0.0
# Current text alignment
align = 'L'
# Last command to be executed
last_command = ''
# Execute the commands in the text area:
for command, args in object.commands:
if command == '!':
# Version number
# print 'Version number', args
pass
elif command == 'A':
# print 'Align:', args
# Write current line
self.ta_write_line(align, cursor, line, 0)
# Empty the line list
line = []
# Set the line width
width = 0.0
# Align text
align = args
# Start new line
cursor = self.ta_new_line(cursor, object,
self.linespacing)
elif command == 'B':
# print 'Background:', args
# Background colour
background = args
elif command == 'C':
# print 'Foreground:', args
# Foreground colour
foreground = args
elif command == 'D':
# print 'Columns:', args
# Number of columns
if self.column == 0 and cursor == [None, None]:
# Nothing rendered yet, so change number of columns
self.columns = args
elif command == 'F':
# print 'Define font:', args
# Define font (already defined in object.font_table)
pass
elif command == 'L':
# print 'Line spacing:', args
# Set line spacing
self.linespacing = args
elif command == 'M':
# print 'Margins:', args
# Change margins
self.margin_offsets = [args[0], args[1]]
self.margins = [
(object.columns[self.column].x1 / scale) + args[0],
(object.columns[self.column].x2 / scale) - args[1]
]
elif command == 'P':
# print 'Paragraph spacing:', args
# Change paragraph spacing
paragraph = args
elif command == 'U':
# print 'Underlining'
# Underlining
pass
elif command == 'V':
# print 'Vertical displacement'
# Vertical displacement
pass
elif command == '-':
# print 'Hyphen'
# Hyphen
pass
elif command == 'newl':
# print 'New line'
# New line
# Write current line
self.ta_write_line(align, cursor, line, 0)
# Start new line
cursor = self.ta_new_line(cursor, object,
self.linespacing)
# Can't position cursor?
if cursor == [None, None]:
break
# Empty the line list
line = []
# Set the line width
width = 0.0
elif command == 'para':
# print 'New paragraph'
# New paragraph
# Write current line
self.ta_write_line(align, cursor, line, 0)
# Start new line
if last_command != 'newl':
cursor = self.ta_new_line(
cursor, object, paragraph + self.linespacing)
else:
cursor = self.ta_new_line(cursor, object,
paragraph)
# Can't position cursor?
if cursor == [None, None]:
break
# Empty the line list
line = []
# Set the line width
width = 0.0
elif command == ';':
# print 'Comment:', args
# Comment
pass
elif command == 'font':
# print 'Use font:', args
# Font change
font_name, \
font_size, \
font_width = object.font_table[args]
# Select font
use_font = RISCOSFont(font_name)
# Move cursor to start of a line if the cursor is
# undefined
if cursor == [None, None]:
cursor[0] = self.margins[0]
cursor[1] = (object.columns[self.column].y2 /
scale) - font_size
# Set line spacing
self.linespacing = font_size
elif command == 'text':
# print args
# Text. Add it to the line, checking that the line
# remains within the margins.
text, space = self.make_safe(args[0]), args[1]
# Add the width of the text to the current total width
width = width + \
use_font.TextCoordBox(text, font_size)[2]
# print width, margins[1] - margins[0]
# Compare current total width with column width
while width > (self.margins[1] - self.margins[0]):
# First write any text on this line
if line != []:
# Width will exceed column width
# print 'Width will exceed column width'
# Write current line
self.ta_write_line(align, cursor, line, 1)
# Start new line
cursor = self.ta_new_line(
cursor, object, self.linespacing)
# Can't position cursor?
if cursor == [None, None]:
break
# Clear the list
line = []
# Reset the width
width = 0.0
# Now attempt to fit this word on the next line
width = use_font.TextCoordBox(text, font_size)[2]
br = len(text)
# Continue to try until the word fits, or none of it fits
while width > (self.margins[1] - self.margins[0]) \
and br > 0:
# Keep checking the size of the word
width = use_font.TextCoordBox(
text[:br], font_size)[2]
br = br - 1
if br == 0:
# Word couldn't fit in the column at all, so
# break out of this loop
break
elif br < len(text):
# Write the subword to the line
self.ta_write_line(
align, cursor,
[(text[:br], font_name,
font_size, font_width,
self.ta_set_colour(foreground),
self.ta_set_colour(background))], 0)
# Start new line
cursor = self.ta_new_line(
cursor, object, self.linespacing)
# Can't position cursor?
if cursor == [None, None]:
break
# keep the remaining text
text = text[br:]
# The width is just the width of this text
width = use_font.TextCoordBox(text,
font_size)[2]
# If the whole string fit onto the line then
# control will flow to the else clause which will
# append the text to the line list for next time.
else:
# The text fits within the margins so add the text
# to the line
line.append(
(text, font_name, font_size, font_width,
self.ta_set_colour(foreground),
self.ta_set_colour(background)))
# Also append any trailing space
if space != '':
line.append(
(space, font_name, font_size, font_width,
self.ta_set_colour(foreground),
self.ta_set_colour(background)))
width = width + \
use_font.TextCoordBox(
space, font_size)[2]
# Can't position cursor?
if cursor == [None, None]:
break
# Remember this command
last_command = command
# Render any remaining text
if line != [] and cursor != [None, None]:
# Write current line
self.ta_write_line(align, cursor, line, 0)
else:
pass
# Return the number of recognised objects
return n_objects
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',
"Xa": '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',
"N": 'invisible', # an invisible open path
"n": 'invisible_close', # a invisible closed path
"u": 'begin_group',
"U": 'end_group',
"*u": 'begin_compound_path',
"*U": '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 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':
path.AppendLine(path.Node(0))
path.ClosePath()
else:
break
self.path = path