def mktrafo(self, extend): if reff.scale.mode == 0: left, bottom = extend[0] right, top = extend[1] width = right - left height = top - bottom sc = 841 / (1.0 * max(abs(width) , abs(height))) else: left = 0 bottom = 0 width = 1 height = 1 sc = reff.scale.metric * 72 / 25.4 self.Scale = sc self.trafo = Scale(sign(width) * sc , sign(height) * sc)(Translation(-left , -bottom))
def get_trafo(self, trfd, scale=1):
cdr_version=self.cdr_version
ieeestart = 32
if cdr_version >= 13:
ieeestart = 40
if cdr_version == 5:
ieeestart = 18
(x_shift,y_shift)=self.doc_page
[var0] = struct.unpack('<d', trfd.data[ieeestart:ieeestart+8])
[var1] = struct.unpack('<d', trfd.data[ieeestart+8:ieeestart+8+8])
[var2] = struct.unpack('<d', trfd.data[ieeestart+2*8:ieeestart+8+2*8])
[var3] = struct.unpack('<d', trfd.data[ieeestart+3*8:ieeestart+8+3*8])
[var4] = struct.unpack('<d', trfd.data[ieeestart+4*8:ieeestart+8+4*8])
[var5] = struct.unpack('<d', trfd.data[ieeestart+5*8:ieeestart+8+5*8])
self.scale_with=min(var0*cmp(var0,0), var4*cmp(var4,0))
obj_trafo=Trafo( var0, var3, var1, var4, (var2+x_shift/2)*scale, (var5+y_shift/2)*scale)
if self.image_dpi_trafo is None:
# return Trafo( var0, var3, var1, var4, (var2+x_shift/2)*scale, (var5+y_shift/2)*scale)
return obj_trafo
else:
[w,h]=self.image_dpi_trafo
image_scale=Scale(w,h)
return obj_trafo(image_scale)
def update_trafo(self):
wt = Translation(-self.wx, -self.wy)
vt = Translation(self.vx, self.vy)
scale = Scale(
float(self.vwidth) / self.wwidth,
float(self.vheight) / self.wheight)
self.trafo = self.base_trafo(vt(scale(wt)))
def GetObjectHandle(self, multiple):
trafo = self.trafo(self.atrafo(Scale(self.properties.font_size)))
if multiple:
return trafo(NullPoint)
else:
pts = self.properties.font.TypesetText(self.text, self.properties)
return map(trafo, pts)
def DrawShape(self, device, rect=None, clip=0):
RectangularPrimitive.DrawShape(self, device)
base_trafo = self.trafo(self.atrafo)
base_trafo = base_trafo(Scale(self.properties.font_size))
paths = self.properties.font.GetPaths(self.text, self.properties)
obj = PolyBezier(paths, self.properties.Duplicate())
obj.Transform(base_trafo)
device.MultiBezier(obj.paths, rect, clip)
def AsBezier(self):
if self.text:
text = split(self.text, '\n')[0]
base_trafo = self.trafo(self.atrafo)
base_trafo = base_trafo(Scale(self.properties.font_size))
paths = self.properties.font.GetPaths(self.text, self.properties)
obj = PolyBezier(paths, self.properties.Duplicate())
obj.Transform(base_trafo)
return obj
def arrow_trafos(path, properties): dir1, dir2 = arrow_vectors(path, properties.line_arrow1, properties.line_arrow2) width = properties.line_width if width < 1.0: width = 1.0 scale = Scale(width) t1 = t2 = None if dir1 is not None: t1 = Translation(path.Node(0))(Rotation(dir1.polar()[1]))(scale) if dir2 is not None: t2 = Translation(path.Node(-1))(Rotation(dir2.polar()[1]))(scale) return t1, t2
def SelectPoint(self, p, rect, device, mode):
trafo = self.trafo(self.atrafo(Scale(self.properties.font_size)))
trafo = trafo.inverse()
p2 = trafo(p)
pts = self.properties.font.TypesetText(self.text + ' ',
self.properties)
dists = []
for i in range(len(pts)):
dists.append((abs(pts[i].x - p2.x), i))
caret = min(dists)[-1]
self.SetCaret(caret)
# print "CATCHED!"
return 1
def SaveDocument(self, doc):
# A dillema
# Should the design fill the CGM-file or
# Should it be placed approximately in
# the same place as it is put on the page.
if 0:
left, bottom, right, top = doc.BoundingRect()
width = right - left
hight = top - bottom
else:
left, bottom = 0, 0
width = doc.page_layout.width
hight = doc.page_layout.height
right, top = width, hight
#sc = 65534 / max(width , hight)
sc = 1000
#self.trafo = Translation(-32767,-32767)(Scale(sc)(Translation(-left , -bottom)))
self.trafo = Scale(sc)(Translation(-left, -bottom))
self.Scale = sc
self.extend = map(rndtoint , \
tuple(self.trafo(left,bottom)) + tuple(self.trafo(right,top)))
# Begin Metafile
filename = os.path.basename(self.pathname)
title = filename + " generated by sK1"
self.putstr(0x0020, title)
# Metafile Version
self.pack("!H", 0x1022)
self.pack("!H", 0x0001)
# Metafile Description
self.putstr(0x1040, filename + " created by sk1")
# Metafile Element List
self.pack("!HHHH", 0x1166, 0x0001, 0xffff, 0x0001)
# Default Replacements
self.pack("!H", 0x1184)
# VDC Integer precision 32 bits
self.pack("!Hh", 0x3022, 32)
#Font List
#
self.SaveLayers(doc.Layers())
# End Meta File
self.pack("!H", 0x0040)
def __init__(self, trafo = None, duplicate = None, loading = 0): PluginCompound.__init__(self, duplicate = duplicate) if duplicate is not None: self.trafo = duplicate.trafo else: if trafo is None: trafo = Identity elif type(trafo) == TupleType: trafo = apply(Trafo, trafo) elif isinstance(trafo, TrafoType): # trafo is already a trafo object pass else: # assume a number and interpret it as a scaling transformation trafo = Scale(trafo) self.trafo = trafo
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 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 parse_transform(self, trafo_string):
trafo = self.trafo
trafo_string = as_latin1(trafo_string)
while trafo_string:
match = rx_trafo.match(trafo_string)
if match:
function = match.group(1)
args = argsf = string.translate(match.group(2), commatospace)
args = map(str, split(args))
trafo_string = trafo_string[match.end(0):]
if function == 'matrix':
args = map(float, split(argsf))
trafo = trafo(apply(Trafo, tuple(args)))
elif function == 'scale':
if len(args) == 1:
sx = sy = args[0]
else:
sx, sy = args
sx, sy = self.user_point(sx, sy)
trafo = trafo(Scale(sx, sy))
elif function == 'translate':
if len(args) == 1:
dx, dy = args[0], '0'
else:
dx, dy = args
dx, dy = self.user_point(dx, dy)
trafo = trafo(Translation(dx, dy))
elif function == 'rotate':
if len(args) == 1:
trafo = trafo(Rotation(float(args[0]) * degrees))
else:
angle, cx, cy = args
cx, cy = self.user_point(cx, cy)
trafo = trafo(
Rotation(float(angle) * degrees, Point(cx, cy)))
elif function == 'skewX':
trafo = trafo(
Trafo(1, 0, tan(float(args[0]) * degrees), 1, 0, 0))
elif function == 'skewY':
trafo = trafo(
Trafo(1, tan(float(args[0]) * degrees), 0, 1, 0, 0))
else:
trafo_string = ''
self.trafo = trafo
def pathtext(path, start_pos, text, font, size, type, properties): metric = font.metric lengths = path.arc_lengths(start_pos) scale = Scale(size); factor = size / 2000.0 pos = font.TypesetText(text, properties) pos = map(scale, pos) trafos = [] for idx in range(len(text)): char = text[idx] width2 = metric.char_width(ord(char)) * factor x = pos[idx].x + width2 trafo = coord_sys_at(lengths, x, type) if trafo is not None: trafos.append(trafo(Translation(-width2, 0))) else: # we've reached the end of the path. Ignore all following # characters break return trafos
def svgView(self, attrs):
self._print("basetrafo", self.basetrafo)
viewbox = attrs.get("viewBox", "")
if viewbox:
# In early viewPort = viewBox
self._print('viewBox', viewbox)
viewbox = viewbox.replace(',', ' ')
self.viewPort = map(float, split(viewbox))
x, y = self.user_point(attrs.get('x', '0'), attrs.get('y', '0'))
width, height = self.user_point(attrs.get('width', '100%'), \
attrs.get('height', '100%'))
self._print('svgView', x, y, width, height)
if self.loader.page_layout is None:
self.loader.page_layout = pagelayout.PageLayout(width=width * 0.8,
height=height *
0.8)
if self.trafo is None:
# adjustment of the coordinate system and taking into account
# the difference between 90dpi in svg against 72dpi in sk1
self.trafo = self.basetrafo = Trafo(0.8, 0, 0, -0.8, 0,
height * 0.8)
# initial values of x and y are ignored
x = y = 0
# adjust to the values x, y in self.trafo
self.trafo = self.trafo(Translation(x, y))
# evaluate viewBox
# FIXME: Handle preserveAspectRatio as well
if viewbox:
t = Scale(width / self.viewPort[2], height / self.viewPort[3])
t = t(Translation(-self.viewPort[0], -self.viewPort[1]))
self.trafo = self.trafo(t)
# set viewPort taking into account the transformation
self.viewPort = (x, y, width/(self.trafo.m11/self.basetrafo.m11),\
height/(self.trafo.m22/self.basetrafo.m22))
self._print("trafo", self.trafo)
self._print("viewPort", self.viewPort)
def read_header(self):
format = orientation = None
if self.format_version >= 3.0:
line = strip(self.readline())
if line:
# portrait/landscape
if lower(line) == 'landscape':
orientation = pagelayout.Landscape
else:
orientation = pagelayout.Portrait
else:
raise SketchLoadError('No format specification')
line = strip(self.readline())
if line:
# centering
line = lower(line)
if line == 'center' or line == 'flush left':
line = lower(strip(self.readline()))
if not line:
raise SketchLoadError(
'No Center/Flushleft or Units specification')
if line == 'metric':
# ignore for now
pass
if self.format_version >= 3.2:
self.readline() # papersize
self.readline() # magnification
self.readline() # pages
self.readline() # transparent color
line = strip(self.readline())
if line:
try:
ppi, coord = map(atoi, split(line))
except:
raise SketchLoadError('Invalid Resolution specification')
self.trafo = self.trafo(Scale(72.0 / ppi))
def GetPaths(self, text, prop):
# convert glyph data into bezier polygons
paths = []
fheight = self.getFontHeight(prop)
voffset = 0
tab = 1
lastIndex = 0
lines = split(text, '\n')
for line in lines:
offset = c = 0
align_offset = self.getAlignOffset(line, prop)
for c in line:
if c == '\t':
c = ' '
tab = 3
else:
tab = 1
try:
thisIndex = self.enc_vector[ord(c)]
except:
thisIndex = self.enc_vector[ord('?')]
glyph = ft2.Glyph(self.face, thisIndex, 1)
kerning = self.face.getKerning(lastIndex, thisIndex, 0)
lastIndex = thisIndex
offset += kerning[0] / 4.0
voffset += kerning[1] / 4.0
for contour in glyph.outline:
# rotate contour so that it begins with an onpoint
x, y, onpoint = contour[0]
if onpoint:
for j in range(1, len(contour)):
x, y, onpoint = contour[j]
if onpoint:
contour = contour[j:] + contour[:j]
break
else:
print "unsupported type of contour (no onpoint)"
# create a sK1 path object
path = CreatePath()
j = 0
npoints = len(contour)
x, y, onpoint = contour[0]
last_point = Point(x, y)
while j <= npoints:
if j == npoints:
x, y, onpoint = contour[0]
else:
x, y, onpoint = contour[j]
point = Point(x, y)
j = j + 1
if onpoint:
path.AppendLine(point)
last_point = point
else:
c1 = last_point + (point - last_point) * 2.0 / 3.0
x, y, onpoint = contour[j % npoints]
if onpoint:
j = j + 1
cont = ContAngle
else:
x = point.x + (x - point.x) * 0.5
y = point.y + (y - point.y) * 0.5
cont = ContSmooth
last_point = Point(x, y)
c2 = last_point + (point - last_point) * 2.0 / 3.0
path.AppendBezier(c1, c2, last_point, cont)
path.ClosePath()
path.Translate(offset, voffset)
path.Transform(Scale(0.5 / 1024.0))
path.Translate(align_offset, 0)
paths.append(path)
if c == ' ':
offset = offset + glyph.advance[
0] * prop.chargap * prop.wordgap * tab / 1000
else:
offset = offset + glyph.advance[0] * prop.chargap / 1000
voffset -= fheight
return tuple(paths)
class CGMLoader(GenericLoader):
def __init__(self, file, filename, match):
GenericLoader.__init__(self, file, filename, match)
self.file = file
self.verbosity = 15
self.IntF = (self.i8, self.i16, self.i24, self.i32)
self.CardF = (self.u8, self.u16, self.u24, self.u32)
self.FloatF = (self.flp32, self.flp64)
self.FixedF = (self.fip32, self.fip64)
self.RealF = self.FixedF + self.FloatF
self.VDCF = (self.IntF, self.RealF)
def _print(self, pl , format, *args, **kw):
if pl <= self.verbosity:
try:
if kw:
text = format % kw
elif args:
text = format % args
else:
text = format
except:
text = string.join([format] + map(str, args))
if text[-1] != '\n':
text = text + '\n'
# sys.stdout.write(text)
def unpack(self, format):
size = struct.calcsize(format)
return struct.unpack(format, self.file.read(size))
def u8(self):
return self.unpack("!B")[0]
def u16(self):
return self.unpack("!H")[0]
def u24(self):
t = self.unpack("!BH")
return (t[0] << 16) | t[1]
def u32(self):
return self.unpack("!I")[0]
def i8(self):
return self.unpack("!b")[0]
def i16(self):
return self.unpack("!h")[0]
def i24(self):
t = self.unpack("!bH")
return (t[0] << 16) | t[1]
def i32(self):
return self.unpack("!i")[0]
def fip32(self):
t = self.unpack("!hH")
return t[0] + t[1] / 65536.0
def fip64(self):
t = self.unpack("!hH")
return t[0] + t[1] / (65536.0 * 65536.0)
def flp32(self):
return self.unpack("!f")[0]
def flp64(self):
return self.unpack("!d")[0]
def Int(self):
return self.IntF[reff.intprec]()
def Real(self):
return self.RealF[reff.realprec]()
def Inx(self):
return self.IntF[reff.inxprec]()
def Enum(self):
return self.unpack("!h")[0]
def VDC(self):
return self.VDCF[reff.vdc.type][reff.vdc.prec]()
def Pnt(self):
return (self.VDC() , self.VDC())
def getstr(self):
lng = self.u8()
return self.unpack("!" + `lng` + "s")[0]
def getcol(self):
if reff.color.mode == 1:
cgmcol = self.unpack(reff.color.absstruct)
cgmcol = map(operator.sub , cgmcol , reff.color.offset)
cgmcol = map(operator.div , cgmcol , reff.color.scale)
return cgmcol
else:
cgmcol = self.unpack(reff.color.inxstruct)[0]
return reff.color.table[cgmcol % reff.color.maxindex]
# 0x0020:
def BEGMF(self, size):
self._print(10 , '======= 0.1 =======')
global dflt, reff
dflt = cp(init)
reff = dflt
self.document()
self.fntmap = range(78)
self.fntmap.insert(0, 0)
# 0x0040:
def ENDMF(self, size):
pass
# 0x0060:
def BEGPIC(self, size):
global curr, reff
curr = cp(dflt)
reff = curr
if reff.vdc.extend == None:
if reff.vdc.type == 0:
reff.vdc.extend = reff.vdc.intextend
reff.vdc.size = reff.vdc.intsize
reff.vdc.prec = reff.vdc.intprec
else:
reff.vdc.extend = reff.vdc.realextend
reff.vdc.size = reff.vdc.realsize
reff.vdc.prec = reff.vdc.realprec
if reff.vdc.prec == None:
if reff.vdc.type == 0:
reff.vdc.size = reff.vdc.intsize
reff.vdc.prec = reff.vdc.intprec
else:
reff.vdc.size = reff.vdc.realsize
reff.vdc.prec = reff.vdc.realprec
Hgt = reff.vdc.extend[1][1] - reff.vdc.extend[0][1]
Wdt = reff.vdc.extend[1][0] - reff.vdc.extend[0][0]
LS = max(abs(Hgt), abs(Wdt))
if reff.clip.rect == None:
reff.clip.rect = reff.vdc.extend
if reff.marker.size == None:
if reff.marker.sizemode == 0:
reff.marker.size = LS / 100.0
else:
reff.marker.size = 3
if reff.text.height == None:
reff.text.height = LS / 100.0
if reff.edge.width == None:
if reff.edge.widthmode == 0:
reff.edge.width = LS / 1000.0
else:
reff.edge.width = 1
if reff.line.width == None:
if reff.line.widthmode == 0:
reff.line.width = LS / 1000.0
else:
reff.line.width = 1
ln = self.getstr()
self.layer(name=ln)
# 0x0080:
def BEGPICBODY(self, size):
self.mktrafo(reff.vdc.extend)
# 0x00A0:
def ENDPIC(self, size):
pass
# 0x1020:
def mfversion(self, size):
if self.u16() != 1:
raise SketchLoadError("Can only load CGM version 1")
# 0x1040:
def mfdesc(self, size):
pass
# 0x1060:
def vdctype(self, size):
reff.vdc.type = self.Enum()
if reff.vdc.type == 0:
reff.vdc.size = reff.vdc.intsize
reff.vdc.prec = reff.vdc.intprec
reff.vdc.extend = reff.vdc.intextend
else:
reff.vdc.size = reff.vdc.realsize
reff.vdc.prec = reff.vdc.realprec
reff.vdc.extend = reff.vdc.realextend
# 0x1080:
def integerprec(self, size):
bits = self.Int()
if bits in (8, 16, 24, 32):
reff.intsize = (bits / 8)
reff.intprec = reff.intsize - 1
else:
raise SketchLoadError("This implementation can't work with %d bit integers" % (bits,))
# 0x10a0:
def realprec(self, size):
type = self.Enum()
prec = (self.Int(), self.Int())
if type == 1:
if prec == (16, 16):
reff.realprec = 0# 32 bit fixed precision
elif prec == (32, 32):
reff.realprec = 1# 64 bit fixed precision
else:
raise SketchLoadError("This implementation can't work with %d,%d bit fixed points" % prec)
else:
if prec == (9, 23):
reff.realprec = 2# 32 bit floating point
elif prec == (12, 52):
reff.realprec = 3# 64 bit floating point
else:
raise SketchLoadError("This implementation can't work with %d,%d bit floatingpoints" % prec)
# 0x10c0: 'indexprec',
def indexprec(self, size):
bits = self.Int()
if bits in (8, 16, 24, 32):
reff.inxsize = (bits / 8)
reff.inxprec = reff.inxsize - 1
else:
raise SketchLoadError("This implementation can't work with %d bit indices" % (bits,))
# 0x10e0:
def colrprec(self, size):
bits = self.Int()
if bits == 8:
reff.color.absstruct = "!BBB"
elif bits == 16:
reff.color.absstruct = "!HHH"
elif bits == 32:
reff.color.absstruct = "!III"
else:
raise SketchLoadError("This implementation can't work with %d bit color components" % (bits,))
# 0x1100:
def colrindexprec(self, size):
bits = self.Int()
if bits == 8:
reff.color.inxstruct = "!B"
elif bits == 16:
reff.color.inxstruct = "!H"
elif bits == 32:
reff.color.inxstruct = "!I"
else:
raise SketchLoadError("This implementation can't work with %d bit color indices" % (bits,))
# 0x1120: 'maxcolrindex',
def maxcolrindex(self, size):
reff.color.maxindex = self.unpack(reff.color.inxstruct)[0]
reff.color.table = CreateColorTable(reff.color.maxindex)
# 0x1140:
def colrvalueext(self, size):
bottom = self.unpack(reff.color.absstruct)
top = self.unpack(reff.color.absstruct)
reff.color.offset = map(operator.mul , bottom , (1.0, 1.0, 1.0))
reff.color.scale = map(operator.sub, top , reff.color.offset)
# 0x1160:
def mfelemlist(self, size):
pass
# 0x1180:
def mfdfltrpl(self, size):
self.interpret(size)
# 0x11a0:
def fontlist(self, size):
tot = 0
fntinx = 1
while tot < size:
fontname = self.getstr()
bsteval = 100
bstinx = 0
for inx in range(len(fntlst)):
fntname = fntlst[inx]
if fntname is not None:
baseinx = fntname.find('-')
if baseinx == -1:
baseinx = len(fntname)
basename = fntname[0:baseinx]
postfix = fntname[baseinx:]
self._print(20 , "fontname = %s; basename = %s; postfix = %s\n" , fntname , basename , postfix)
self._print(30 , "base = %s; baselst = %s\n" , basename , fntalias.get(basename , ()))
baselst = (basename,) + fntalias.get(basename , ())
for suffix in ["" , "-Roman" , "-Regular" , "-Book"]:
for base in baselst:
score = strmatch(fontname + suffix , base + postfix)
if score < bsteval:
bsteval = score
bstinx = inx
self.fntmap[fntinx] = bstinx
tot = tot + len(fontname) + 1
self._print(10 , 'font[%d]: %s => %s = %s\n' , fntinx , fontname , fntlst[bstinx] , fntlst[self.fntmap[fntinx]])
fntinx = fntinx + 1
# 0x2020: 'scalemode',
def scalemode(self, size):
reff.scale.mode = self.Enum()
if reff.realprec in (2, 3):# floatingpoint precision
reff.scale.metric = self.Real()
else:
reff.scale.metric = self.flp32()
if reff.scale.mode == 1 and reff.scale.metric == 0:
self._print(10 , "Scale metric set to zero; mode set back to absolute")
reff.scale.mode = 0
# 0x2040:
def colrmode(self, size):
reff.color.mode = self.Enum()
# 0x2060:
def linewidthmode(self, size):
reff.line.widthmode = self.Enum()
# 0x2080:
def markersizemode(self, size):
reff.marker.sizemode = self.Enum()
# 0x20a0:
def edgewidthmode(self, size):
reff.edge.widthmode = self.Enum()
def mktrafo(self, extend):
if reff.scale.mode == 0:
left, bottom = extend[0]
right, top = extend[1]
width = right - left
height = top - bottom
sc = 841 / (1.0 * max(abs(width) , abs(height)))
else:
left = 0
bottom = 0
width = 1
height = 1
sc = reff.scale.metric * 72 / 25.4
self.Scale = sc
self.trafo = Scale(sign(width) * sc , sign(height) * sc)(Translation(-left , -bottom))
# 0x20c0:
def vdcext(self, size):
ll = self.Pnt()
ur = self.Pnt()
reff.vdc.extend = (ll, ur)
# 0x20e0:
def backcolr(self, size):
self.getcol()
# 0x3020:
def vdcintegerprec(self, size):
bits = self.Int()
if bits in (8, 16, 24, 32):
reff.vdc.intsize = (bits / 8)
reff.vdc.intprec = reff.vdc.intsize - 1
if reff.vdc.type == 0:
reff.vdc.size = reff.vdc.intsize
reff.vdc.prec = reff.vdc.intprec
else:
raise SketchLoadError("This implementation can't work with %d bit integers" % (bits,))
# 0x3040:
def vdcrealprec(self, size):
type = self.Enum()
prec = (self.Int(), self.Int())
if type == 1:
if prec == (16, 16):
reff.vdc.realprec = 0# 32 bit fixed precision
elif prec == (32, 32):
reff.vdc.realprec = 1# 64 bit fixed precision
else:
raise SketchLoadError("This implementation can't work with %d,%d bit fixed points" % prec)
else:
if prec == (9, 23):
reff.vdc.realprec = 2# 32 bit floating point
elif prec == (12, 52):
reff.vdc.realprec = 3# 64 bit floating point
else:
raise SketchLoadError("This implementation can't work with %d,%d bit floatingpoints" % prec)
if reff.vdc.type == 1:
reff.vdc.size = reff.vdc.realsize
reff.vdc.prec = reff.vdc.realprec
# 0x30a0:
def cliprect(self, size):
reff.clip.rect = (self.Pnt(), self.Pnt())
def Path(self, size):
path = CreatePath()
for i in range(size / (2 * reff.vdc.size)):
path.AppendLine(self.trafo(self.Pnt()))
return path
def setlinestyle(self):
style = basestyle.Duplicate()
style.line_pattern = SolidPattern(apply(CreateRGBColor , reff.line.color))
style.line_width = reff.line.width
if reff.line.widthmode == 0:
style.line_width = style.line_width * self.Scale
style.line_dashes = reff.line.dashtable[reff.line.type - 1]
self.prop_stack.AddStyle(style)
# 0x4020:
def LINE(self, size):
path = self.Path(size)
self.setlinestyle()
self.bezier((path,))
# 0x4040:
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)
# 0x4080:
def TEXT(self, size):
P = self.Pnt()
F = self.Enum()
S = self.getstr()
T = Translation(self.trafo(P))
Py = Point(reff.text.orientation[0]).normalized()
Px = Point(reff.text.orientation[1]).normalized()
B = transform_base(Point(0.0, 0.0) , reff.text.expansion * Px , Py)
self.style = basestyle.Duplicate()
self.style.font = GetFont(fntlst[self.fntmap[reff.text.fontindex]])
self.style.font_size = reff.text.height * self.Scale
self.style.fill_pattern = SolidPattern(apply(CreateRGBColor , reff.text.color))
O = text.SimpleText(text=S, trafo=T(B),
halign=text.ALIGN_LEFT, valign=text.ALIGN_BASE,
properties=self.get_prop_stack())
self.append_object(O)
def setfillstyle(self):
style = basestyle.Duplicate()
if reff.fill.type == 1:
style.fill_pattern = SolidPattern(apply(CreateRGBColor , reff.fill.color))
elif reff.fill.type == 3:
style.fill_pattern = HatchingPattern(apply(CreateRGBColor , reff.fill.color),
StandardColors.white,
Point(2.0, 1.0), 5 , 1)
if reff.edge.visible:
style.line_pattern = SolidPattern(apply(CreateRGBColor , reff.edge.color))
style.line_width = reff.edge.width
if reff.edge.widthmode == 0:
style.line_width = style.line_width * self.Scale
style.line_dashes = reff.edge.dashtable[reff.edge.type - 1]
self.prop_stack.AddStyle(style)
# 0x40e0:
def POLYGON(self, size):
path = self.Path(size)
if path.Node(-1) != path.Node(0):
path.AppendLine(path.Node(0))
path.load_close()
self.setfillstyle()
self.bezier((path,))
# 0x4100:
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 bugmark(self, P):
P = P - Point(1, 1)
style = basestyle.Duplicate()
style.fill_pattern = SolidPattern(StandardColors.black)
style.line_pattern = SolidPattern(StandardColors.black)
self.prop_stack.AddStyle(style)
self.rectangle(2, 0, 0, 2, P.x, P.y)
# 0x4160:
def RECT(self, size):
ll = self.trafo(self.Pnt())
ur = self.trafo(self.Pnt())
lr = Point(ur.x , ll.y)
ul = Point(ll.x , ur.y)
T = transform_base(ll , lr , ul)
self.setfillstyle()
apply(self.rectangle , T.coeff())
# 0x4180:
def CIRCLE(self, size):
centre = self.trafo(self.Pnt())
radius = self.VDC() * self.Scale
self.setfillstyle()
self.ellipse(radius, 0, 0, radius, centre.x, centre.y)
# 0x41a0:
def ARC3PT(self, size):
Po = self.trafo(self.Pnt())
Pm = self.trafo(self.Pnt())
Pe = self.trafo(self.Pnt())
Pc = Cnt3Pnt(Po, Pm, Pe)
radius = abs(Po - Pc)
if Angle2(Po - Pc , Pm - Pc) < Angle2(Po - Pc, Pe - Pc):
Ao = Angle(Po - Pc)
Ae = Angle(Pe - Pc)
else:
Ao = Angle(Pe - Pc)
Ae = Angle(Po - Pc)
self.setlinestyle()
self.ellipse(radius, 0, 0, radius, Pc.x, Pc.y, Ao, Ae, 0)
# 0x41c0:
def ARC3PTCLOSE(self, size):
Po = self.trafo(self.Pnt())
Pm = self.trafo(self.Pnt())
Pe = self.trafo(self.Pnt())
closetype = self.Enum()
Pc = Cnt3Pnt(Po, Pm, Pe)
radius = abs(Po - Pc)
if Angle2(Po - Pc , Pm - Pc) < Angle2(Po - Pc, Pe - Pc):
Ao = Angle(Po - Pc)
Ae = Angle(Pe - Pc)
else:
Ao = Angle(Pe - Pc)
Ae = Angle(Po - Pc)
self.setfillstyle()
self.ellipse(radius, 0, 0, radius, Pc.x, Pc.y, Ao, Ae, 2 - closetype)
# 0x41e0:
def ARCCTR(self, size):
centre = self.trafo(self.Pnt())
Vo = self.trafo.DTransform(self.Pnt())
Ve = self.trafo.DTransform(self.Pnt())
radius = self.VDC() * self.Scale
Ao = Angle(Vo)
Ae = Angle(Ve)
self.setlinestyle()
self.ellipse(radius, 0, 0, radius, centre.x, centre.y, Ao, Ae, 0)
# 0x4200: 'ARCCTRCLOSE',
def ARCCTRCLOSE(self, size):
centre = self.trafo(self.Pnt())
Vo = self.trafo.DTransform(self.Pnt())
Ve = self.trafo.DTransform(self.Pnt())
radius = self.VDC() * self.Scale
closetype = self.Enum()
Ao = Angle(Vo)
Ae = Angle(Ve)
self.setfillstyle()
self.ellipse(radius, 0, 0, radius, centre.x, centre.y, Ao, Ae, 2 - closetype)
# 0x4220:
def ELLIPSE(self, size):
centre = self.trafo(self.Pnt())
cdp1 = self.trafo(self.Pnt())
cdp2 = self.trafo(self.Pnt())
T = transform_base(centre , cdp1 , cdp2)
self.setfillstyle()
apply(self.ellipse , T.coeff())
# 0x4240:
def ELLIPARC(self, size):
centre = self.trafo(self.Pnt())
cdp1 = self.trafo(self.Pnt())
cdp2 = self.trafo(self.Pnt())
Vo = self.trafo.DTransform(self.Pnt())
Ve = self.trafo.DTransform(self.Pnt())
T = transform_base(centre , cdp1 , cdp2)
Vo = T.inverse().DTransform(Vo)
Ve = T.inverse().DTransform(Ve)
Ao = Angle(Vo)
Ae = Angle(Ve)
self.setlinestyle()
apply(self.ellipse , T.coeff() + (Ao, Ae, 0))
# 0x4260:
def ELLIPARCCLOSE(self, size):
centre = self.trafo(self.Pnt())
cdp1 = self.trafo(self.Pnt())
cdp2 = self.trafo(self.Pnt())
Vo = self.trafo.DTransform(self.Pnt())
Ve = self.trafo.DTransform(self.Pnt())
closetype = self.Enum()
T = transform_base(centre , cdp1 , cdp2)
Vo = T.inverse().DTransform(Vo)
Ve = T.inverse().DTransform(Ve)
Ao = Angle(Vo)
Ae = Angle(Ve)
self.setfillstyle()
apply(self.ellipse , T.coeff() + (Ao, Ae, 2 - closetype))
# 0x5040
def linetype(self, size):
reff.line.type = self.Inx()
# 0x5060:
def linewidth(self, size):
if reff.line.widthmode == 0:
reff.line.width = self.VDC()
else:
reff.line.width = self.Real()
# 0x5080:
def linecolr(self, size):
reff.line.color = self.getcol()
# 0x5100:
def markercolr(self, size):
reff.marker.color = self.getcol()
# 0x5140: 'textfontindex',
def textfontindex(self, size):
reff.text.fontindex = self.Inx()
self._print(10 , 'font[%d]: => %s\n' , reff.text.fontindex , fntlst[self.fntmap[reff.text.fontindex]])
# 0x5180: 'charexpan',
def charexpan(self, size):
reff.text.expansion = self.Real()
# 0x51c0:
def textcolr(self, size):
reff.text.color = self.getcol()
# 0x51e0:
def charheight(self, size):
reff.text.height = self.VDC()
# 0x5200:
def charori(self, size):
reff.text.orientation = (self.Pnt(), self.Pnt())
# 0x52c0:
def intstyle(self, size):
reff.fill.type = self.Enum()
# 0x52e0:
def fillcolr(self, size):
reff.fill.color = self.getcol()
# 0x5360:
def edgetype(self, size):
reff.edge.type = self.Inx()
# 0x5380:
def edgewidth(self, size):
if reff.edge.widthmode == 0:
reff.edge.width = self.VDC()
else:
reff.edge.width = self.Real()
# 0x53a0:
def edgecolr(self, size):
reff.edge.color = self.getcol()
# 0x53c0:
def edgevis(self, size):
reff.edge.visible = self.Enum()
# 0x5440: 'colrtable',
def colrtable(self, size):
i = self.unpack(reff.color.inxstruct)[0]
size = size - struct.calcsize(reff.color.inxstruct)
while size > struct.calcsize(reff.color.absstruct):
cgmcol = self.unpack(reff.color.absstruct)
cgmcol = map(operator.sub , cgmcol , reff.color.offset)
cgmcol = map(operator.div , cgmcol , reff.color.scale)
reff.color.table[i] = cgmcol
size = size - struct.calcsize(reff.color.absstruct)
i = i + 1
def interpret(self, sz):
tell = self.file.tell
Id = -1
pos = tell()
start = pos
while Id != 0x40 and pos < start + sz:
head = self.u16()
Id = head & 0xffe0
size = head & 0x001f
hdsz = 2
if size == 31:
size = self.u16()
hdsz = 4
pdsz = ((size + 1) / 2) * 2
self._print(20 , '%4x at %5d) %5d(%5d): %4x: %s' , head, pos, size, pdsz, Id, CGM_ID.get(Id, ''))
if hasattr(self, CGM_ID.get(Id, '')):
self._print(30 , 'Calling %s' % (CGM_ID.get(Id, '')))
getattr(self, CGM_ID[Id])(size)
else:
if Id:
self.file.read(pdsz)
name = CGM_ID.get(Id, '')
Class = Id >> 12
Elem = (Id & 0x0fff) >> 5
self._print(2, '*** unimplemented: %4x; class = %d, element = %2d %s'
, Id , Class , Elem, name)
pos = pos + hdsz + pdsz
if tell() < pos:
self.file.read(pos - tell())
elif tell() > pos:
self._print(2, 'read too many bytes')
self.file.seek(pos - tell(), 1)
if pos != tell():
raise SketchLoadError("Lost position in File")
def Load(self):
self.file.seek(0, 2)
where = self.file.tell()
self.file.seek(0, 0)
self.interpret(where)
self.end_all()
self.object.load_Completed()
return self.object
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
textobj = SimpleText()
width = width + use_font.TextCoordBox(
text, font_size, textobj.properties)[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, textobj.properties)[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,
textobj.properties)[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, textobj.properties)[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, textobj.properties)[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
def foot_prints_along_path(context): doc = context.document objects = doc.SelectedObjects() # The requirement for this script is, as described in the module # doc-string, that exactly two objects are selected and that the # top-most of these is the path. if len(objects) == 2 and objects[1].is_curve: # First, we take the foot print. We copy the foot print since we # have to modify it and we don't want the original to be # affected. foot_print = objects[0].Duplicate() # The rest of the script is easier to write if we have a foot # print located at the origin of the coordinate system that we # can use as a stencil, so we move the copy accordingly. The # Transform method modifies the object in place. That's why it # was important to copy it. r = foot_print.coord_rect foot_length = r.right - r.left foot_print.Transform(Translation(-r.right + foot_length/2, -r.bottom)) # Now the path. The Paths() method of an object returns a tuple # of path-objects if the object can be represented as paths. All # objects whose is_curve attribute is true can be represented as # Paths. In this example script we only look at the first path. path = objects[1].Paths()[0] # arc_lengths returns a list of (LENGTH, POINT) pairs where # POINT is a point on the curve and LENGTH is the arc length # from the start of the curve to that point. The points are # placed so that the curve between successive points can be seen # as a straight line. We'll be using this list to determine the # positions and orientations of the individual foot prints. arc_lengths = path.arc_lengths() # In the loop below, we'll be positioning the foot prints one # after the other from the start of the curve to the end, # alternating between the left and right foot prints. # Total length of the path so that we know when we're done. total_length = arc_lengths[-1][0] # Distance along the path we've already covered. distance = 0 # Count the number of foot prints so that we can mirror produce # left and right footprints. count = 0 # List we put all the copies into. foot_prints = [] # Now loop until we've walked along the whole path. while total_length - distance > foot_length: # Determine the transformation that turns the stencil into a # foot print at the right place with the right orientation. # We can borrow this functionality from the path-text code. # Placing letters along the path is practically the same as # placing foot prints. trafo = coord_sys_at(arc_lengths, distance, PATHTEXT_ROTATE) # Right feet are created by mirroring the left foot which # serves as stencil if count % 2: trafo = trafo(Scale(1, -1)) # Create a transformed copy of the stencil. foot = foot_print.Duplicate() foot.Transform(trafo) foot_prints.append(foot) # Update the length and the counter distance = distance + foot_length count = count + 1 # As the last step, insert the foot prints into the document as # a group. The Insert method takes care of undo handling. if foot_prints: doc.Insert(Group(foot_prints))