class DXFLoader(GenericLoader):
functions={ "POP_TRAFO": 'pop_trafo',
"TABLE": 'load_TABLE',
"BLOCK": 'load_BLOCK',
"LINE": 'load_line',
"LWPOLYLINE": 'load_lwpolyline',
"POLYLINE": 'load_polyline',
"SEQEND": 'load_seqend',
"VERTEX": 'load_vertex',
"CIRCLE": 'load_circle',
"ARC": 'load_arc',
"ELLIPSE": 'load_ellips',
"POINT": 'load_point',
"SOLID": 'load_solid',
"INSERT": 'load_insert',
"TEXT": 'load_text',
#"MTEXT": 'load_text',
"3DFACE": 'load_3dface',
"SPLINE": 'load_spline',
"VIEWPORT": 'load_bypass',
}
def __init__(self, file, filename, match):
GenericLoader.__init__(self, file, filename, match)
self.file = file
self.DWGCODEPAGE = 'latin1'
self.unit_to_pt = 2.83464566929
self.dynamic_style_dict = {}
self.style_dict = {}
self.ltype_dict = {'CONTINUOUS': { '2': 'CONTINUOUS', # Linetype name
'3': 'Solid line', # Descriptive text for linetype
'49': [], # Dash, dot or space length
#(one entry per element)
}
}
self.layer_dict = {'0': { '2': '0', # Layer name
'6': 'CONTINUOUS', #Linetype name
'62': 0, # Color number
'370': None, #Line weight
}
}
self.block_dict = {}
self.stack = []
self.stack_trafo = []
self.default_layer = '0'
self.default_style = 'STANDARD'
self.default_block = None
self.default_line_width = 30
self.EXTMIN = (1e+20, 1e+20)
self.EXTMAX = (-1e+20, -1e+20)
self.PEXTMIN = (1e+20, 1e+20)
self.PEXTMAX = (-1e+20, -1e+20)
self.general_param = {
'8': self.default_layer, # Layer name
'6': 'BYLAYER', # Linetype name
'62': 256, # Color number
'48': 1.0, # Linetype scale
#'60': 0, # Object visibility. If 1 Invisible
}
self.curstyle = Style()
self.update_trafo()
def update_trafo(self, scale = 1):
EXT_hight = self.EXTMAX[0] - self.EXTMIN[0]
EXT_width = self.EXTMAX[1] - self.EXTMIN[1]
PEXT_hight = self.PEXTMAX[0] - self.PEXTMIN[0]
PEXT_width = self.PEXTMAX[1] - self.PEXTMIN[1]
if EXT_hight > 0:
scale = 840 / max(EXT_hight, EXT_width)
self.unit_to_pt = scale
x = self.EXTMIN[0] * scale
y = self.EXTMIN[1] * scale
elif PEXT_hight > 0:
scale = 840 / max(PEXT_hight, PEXT_width)
self.unit_to_pt = scale
x = self.PEXTMIN[0] * scale
y = self.PEXTMIN[1] * scale
else:
x = 0
y = 0
self.trafo = Trafo(scale, 0, 0, scale, -x, -y)
def push_trafo(self, trafo = None):
# save trafo in stack_trafo
if trafo is None:
trafo = self.trafo
self.stack_trafo.append(trafo)
def pop_trafo(self):
self.trafo = self.stack_trafo.pop()
def get_pattern(self, color_index):
# 0 = Color BYBLOCK
if color_index == 0:
block_name = self.default_block
if block_name is None:
layer_name = '0'
else:
layer_name = self.block_dict[block_name]['8']
color_index = self.layer_dict[layer_name]['62']
# 256 = Color BYLAYER
if color_index == 256 or color_index is None:
layer_name = self.default_layer
color_index = self.layer_dict[layer_name]['62']
## FIXMY 257 = Color BYENTITY
if color_index < 0:
pattern = EmptyPattern
else:
pattern = SolidPattern(colors[color_index])
return pattern
def get_line_width(self, layer_name = None):
if layer_name is None:
layer_name = self.default_layer
layer = self.layer_dict[layer_name]
if '370' in layer:
width = layer['370']
if width == -3 or width is None:
width = self.default_line_width
width = width * 72.0 / 2.54 /1000 # th 100 mm to pt
if width <= 0.0: # XXX
width = 0.1
return width
def get_line_type(self, linetype_name = None, scale = 1.0, width = 1.0, layer_name = None):
#if linetype_name == 'BYBLOCK':
#block_name = self.default_block
#layer_name = self.block_dict[block_name]['8']
if layer_name is None:
layer_name = self.default_layer
if linetype_name is None or linetype_name == 'BYLAYER' or linetype_name == 'BYBLOCK':
linetype_name = self.layer_dict[layer_name]['6']
linetype = self.ltype_dict[upper(linetype_name)]['49']
lscale = scale * self.unit_to_pt / width
dashes = map(lambda i : abs(linetype[i]) * lscale, xrange(len(linetype)))
return tuple(dashes)
def get_line_style(self, **kw):
if kw['8'] in self.layer_dict:
self.default_layer = layer_name = kw['8']
else:
layer_name = self.default_layer
linetype_name = upper(kw['6'])
scale = kw['48']
color_index = kw['62']
style = Style()
style.line_width = self.get_line_width()
style.line_join = const.JoinRound
style.line_cap = const.CapRound
style.line_dashes = self.get_line_type(linetype_name = linetype_name, scale = scale, width = style.line_width)
style.line_pattern = self.get_pattern(color_index)
return style
################
# HEADER Section
#
def load_HEADER(self):
return_code = False
header_dict = {}
variable = None
params = {}
line1, line2 = self.read_record()
while line1 or line2:
if variable and (line1 == '9' or line1 == '0'):
header_dict[variable] = params
else:
params[line1] = line2
if line1 == '0' and line2 == 'ENDSEC':
return_code = True
break
elif line1 == '9':
params = {}
variable = line2
line1, line2 = self.read_record()
return return_code, header_dict
def process_header(self, header):
if '$DWGCODEPAGE' in header:
self.DWGCODEPAGE = 'cp'+ upper(header['$DWGCODEPAGE']['3']).replace('ANSI_', '').replace('DOS','')
if '$INSUNITS' in header:
INSUNITS = convert('70', header['$INSUNITS']['70'])
if INSUNITS in unit:
self.unit_to_pt = unit[INSUNITS]
if '$EXTMIN' in header:
param10 = convert('10', header['$EXTMIN']['10'])
param20 = convert('20', header['$EXTMIN']['20'])
self.EXTMIN = (param10, param20)
if '$EXTMAX' in header:
param10 = convert('10', header['$EXTMAX']['10'])
param20 = convert('20', header['$EXTMAX']['20'])
self.EXTMAX = (param10, param20)
if '$PEXTMIN' in header:
param10 = convert('10', header['$PEXTMIN']['10'])
param20 = convert('20', header['$PEXTMIN']['20'])
self.PEXTMIN = (param10, param20)
if '$PEXTMAX' in header:
param10 = convert('10', header['$PEXTMAX']['10'])
param20 = convert('20', header['$PEXTMAX']['20'])
self.PEXTMAX = (param10, param20)
self.update_trafo()
if '$CLAYER' in header:
self.default_layer = convert('8', header['$CLAYER']['8'], self.DWGCODEPAGE)
################
# TABLES Section
#
def load_TABLE(self):
param={ '2': '', # Table name
'70': 0 # Maximum number of entries in table
}
param = self.read_param(param)
table_name = param['2']
table_number = param['70']
print '****', table_name, table_number
line1, line2 = self.read_record()
while line1 or line2:
if line1 == '0' and line2 == 'ENDTAB':
break
if table_name == 'LTYPE':
self.load_LTYPE()
elif table_name == 'LAYER':
self.load_LAYER()
elif table_name == 'STYLE':
self.load_STYLE()
line1, line2 = self.read_record()
def load_LTYPE(self):
param={ '2': '', # Linetype name
'3': '', # Descriptive text for linetype
#'73': 0, # The number of linetype elements
#'40': 0, # Total pattern length
'49': [], # Dash, dot or space length (one entry per element)
}
param = self.read_param(param, [0])
name = upper(param['2'])
if name:
self.ltype_dict[name] = param
dashes = []
for i in xrange(len(param['49'])):
dashes.append(abs(param['49'][i]) * self.unit_to_pt)
name3 = param['3']
#print name3, dashes
if name3 and dashes:
style = Style()
style.line_dashes = tuple(dashes)
style = style.AsDynamicStyle()
style.SetName(name + name3)
self.dynamic_style_dict[name] = style
def load_LAYER(self):
param={ '2': None, # Layer name
'6': None, #Linetype name
'62': 0, # Color number
'370': None, #Line weight
}
param = self.read_param(param, [0])
layer_name = param['2']
if layer_name:
self.layer_dict[layer_name]=param
self.layer(name = layer_name)
def load_STYLE(self):
param={ '2': None, # Style name
'70': 0, # Flag
'40': 0.0, # Fixed text height; 0 if not fixed
'41': 0.0, # Width factor
'42': 0.0, # Last height used
'50': 0.0, # Oblique angle
'71': 0, # Text generation flags
'3': None, # Primary font file name
'4': None, # Bigfont file name
'1000': None,
}
param = self.read_param(param, [0])
style_name = upper(param['2'])
self.style_dict[style_name] = param
################
# BLOCKS Section
#
def load_BLOCK(self):
param={ '2': '', # Block name
'10': 0.0, # X Base point
'20': 0.0, # Y Base point
#'30': 0.0, # Z Base point
'8': self.default_layer, # Layer name
'data': [], # block data
}
param = self.read_param(param)
block_name = param['2']
print '****', block_name
line1, line2 = self.read_record()
while line1 or line2:
if line1 == '0' and line2 == 'ENDBLK':
param = self.read_param(param)
break
param['data'].append(line1)
param['data'].append(line2)
line1, line2 = self.read_record()
param['data'].reverse()
self.block_dict[block_name] = param
# print self.block_dict[block_name]
################
# ENTITIES Section
#
def load_line(self):
param={ '10': None, # X coordinat
'20': None, # y coordinat
#'30': None, # Z coordinat
'11': None, # X coordinat endpoint
'21': None, # y coordinat endpoint
#'31': None, # z coordinat endpoint
}
param.update(self.general_param)
param = self.read_param(param)
self.path = CreatePath()
self.path.AppendLine(self.trafo(param['10'], param['20']))
self.path.AppendLine(self.trafo(param['11'], param['21']))
style = self.get_line_style(**param)
self.prop_stack.AddStyle(style.Duplicate())
self.bezier(self.path,)
def load_lwpolyline(self):
param={ '90': 0, # Number of vertices
'70': 0, # bit codes for Polyline entity
'40': None, # Starting width
'43': 0,
'370': None, #Line weight
}
param.update(self.general_param)
param = self.read_param(param,[10,20,42])
if param['40'] is not None:
line_width = param['40'] * self.unit_to_pt
else:
line_width = param['43'] * self.unit_to_pt
if param['370'] is not None:
line_width = param['370'] * self.unit_to_pt * 72.0 / 2.54 /1000
self.curstyle = self.get_line_style(**param)
# if Group 70 Flag bit value set 1 This is a closed Polyline
path_flag = param['70']
vertex_path = []
for i in xrange(param['90']):
vertex={ '10': None, # X coordinat
'20': None, # Y coordinat
'42': 0.0 # Bulge
}
# 10
line1, line2 = self.read_record()
vertex[line1] = convert(line1, line2, self.DWGCODEPAGE)
# 20
line1, line2 = self.read_record()
vertex[line1] = convert(line1, line2, self.DWGCODEPAGE)
# 42
line1, line2 = self.read_record()
if line1 == '42':
vertex[line1] = convert(line1, line2, self.DWGCODEPAGE)
else:
self.push_record(line1, line2)
vertex_path.append((vertex['10'], vertex['20'], vertex['42']))
self.load_seqend(vertex_path, path_flag)
def load_polyline(self):
param={ '70': 0, # bit codes for Polyline entity
'40': 0.01, #XXX FIXMY
}
param.update(self.general_param)
param = self.read_param(param)
self.vertex_path = []
self.curstyle.line_width=param['40'] * 72 # XXX self.unit_to_pt
self.curstyle.line_pattern = self.get_pattern(param['62'])
# if Group 70 Flag bit value set 1 This is a closed Polyline
self.path_flag = param['70']
def load_vertex(self):
param={#'62': 7, # color
#'6': 'CONTINUOUS', # style
'10': None, # X coordinat
'20': None, # Y coordinat
'42': 0.0 # Bulge
}
param = self.read_param(param)
self.vertex_path.append((param['10'], param['20'], param['42']))
def load_seqend(self, line = None, path_flag = None):
if line is None:
line = self.vertex_path
if path_flag is None:
path_flag = self.path_flag
if path_flag > 1:
print 'FIXMY. Curves and smooth surface type', path_flag
close_path = path_flag & 1 == 1
path = CreatePath()
if len(line):
for i in line:
x, y, bulge = i
#print x, y, bulge
path.AppendLine(self.trafo(x, y))
if close_path:
if path.Node(0) != path.Node(-1):
path.AppendLine(path.Node(0))
path.ClosePath()
self.prop_stack.AddStyle(self.curstyle.Duplicate())
self.bezier(path,)
def load_circle(self):
param={ '10': None, # X coordinat center
'20': None, # Y coordinat center
#'30': None, # Z coordinat center
'40': 0.0 # radius
}
param.update(self.general_param)
param = self.read_param(param)
x = param['10']
y = param['20']
r = param['40']
t = self.trafo(Trafo(r,0,0,r,x,y))
style = self.get_line_style(**param)
self.prop_stack.AddStyle(style.Duplicate())
apply(self.ellipse, t.coeff())
def load_arc(self):
param={ '10': None, # X coordinat center
'20': None, # Y coordinat center
#'30': None, # Z coordinat center
'40': 0.0, # radius
'50': 0.0, # Start angle
'51': 0.0 # End angle
}
param.update(self.general_param)
param = self.read_param(param)
cx = param['10']
cy = param['20']
rx = ry = param['40']
start_angle = param['50'] * degrees
end_angle = param['51'] * degrees
trafo = self.trafo(Trafo(rx, 0, 0, ry, cx, cy))
rx, w1, w2, ry, cx, cy = trafo.coeff()
style = self.get_line_style(**param)
self.prop_stack.AddStyle(style.Duplicate())
apply(self.ellipse, (rx, w1, w2, ry, cx, cy, start_angle, end_angle, ArcArc))
def load_ellips(self):
param={ '10': 0.0, # X coordinat center
'20': 0.0, # Y coordinat center
#'30': 0.0, # Z coordinat center
'11': 0.0, # Endpoint of major axis, relative to the center
'21': 0.0,
#'31': 0.0,
'40': 0.0, # Ratio of minor axis to major axis
'41': 0.0, # Start parameter (this value is 0.0 for a full ellipse)
'42': 0.0, # End parameter (this value is 2pi for a full ellipse)
}
param.update(self.general_param)
param = self.read_param(param)
cx = param['10']
cy = param['20']
rx = sqrt(param['21']**2 + param['11']**2)
ry = rx * param['40']
start_angle = param['41']
end_angle = param['42']
angle=atan2(param['21'], param['11'])
center = self.trafo(cx, cy)
radius = self.trafo.DTransform(rx, ry)
trafo = Trafo(radius.x, 0, 0, radius.y)
trafo = Rotation(angle)(trafo)
trafo = Translation(center)(trafo)
rx, w1, w2, ry, cx, cy = trafo.coeff()
style = self.get_line_style(**param)
self.prop_stack.AddStyle(style.Duplicate())
apply(self.ellipse, (rx, w1, w2, ry, cx, cy, start_angle, end_angle, ArcArc))
def load_point(self):
param={ '10': None, # X coordinat center
'20': None, # Y coordinat center
#'30': None, # Z coordinat center
}
param.update(self.general_param)
param = self.read_param(param)
x = param['10']
y = param['20']
r = 0.3
t = self.trafo(Trafo(r,0,0,r,x,y))
style = self.curstyle.Duplicate()
style.line_pattern = EmptyPattern
style.fill_pattern = self.get_pattern(param['62'])
self.prop_stack.AddStyle(style.Duplicate())
apply(self.ellipse, t.coeff())
def load_solid(self):
param={ '10': None,
'20': None,
#'30': None,
'11': None,
'21': None,
#'31': None,
'12': None,
'22': None,
#'32': None,
'13': None,
'23': None,
#'33': None,
}
param.update(self.general_param)
param = self.read_param(param)
style = self.curstyle.Duplicate()
style.line_pattern = EmptyPattern
style.fill_pattern = self.get_pattern(param['62'])
self.path = CreatePath()
self.path.AppendLine(self.trafo(param['10'], param['20']))
self.path.AppendLine(self.trafo(param['11'], param['21']))
self.path.AppendLine(self.trafo(param['12'], param['22']))
self.path.AppendLine(self.trafo(param['13'], param['23']))
self.path.ClosePath()
self.prop_stack.AddStyle(style.Duplicate())
self.bezier(self.path,)
def load_insert(self):
param={ '2': None, # Block name
'10': 0.0, # X coordinat
'20': 0.0, # Y coordinat
#'30': 0.0, # Z coordinat
'41': 1.0, # X scale factor
'42': 1.0, # Y scale factor
#'43': 1.0, # Z scale factor
'50': 0.0, # Rotation angle
'66': 0, # Attributes-follow flag
}
param = self.read_param(param)
block_name = self.default_block = param['2']
if block_name:
self.stack += ['POP_TRAFO', '0'] + self.block_dict[block_name]['data']
self.push_trafo()
x = param['10']
y = param['20']
block_x = self.block_dict[block_name]['10']
block_y = self.block_dict[block_name]['20']
scale_x = param['41'] * self.trafo.m11
scale_y = param['42'] * self.trafo.m22
angle = param['50'] * degrees
translate = self.trafo(x, y)
trafo = Trafo(1, 0, 0, 1, -block_x, -block_y)
trafo = Scale(scale_x,scale_y)(trafo)
trafo = Rotation(angle)(trafo)
trafo = Translation(translate)(trafo)
self.trafo = trafo
if param['66'] != 0:
line1, line2 = self.read_record()
while line1 or line2:
if line1 == '0' and line2 == 'SEQEND':
break
else:
if line1 == '0':
self.run(line2)
line1, line2 = self.read_record()
def load_text(self):
param={ '10': 0.0,
'20': 0.0,
'40': None, # Text height
'1': '', # Default value
'50': 0, # Text rotation
'41': 1, # Relative X scale factor—width
# '8': self.default_layer, # Layer name
'7': self.default_style, # Style name
'72': 0, #Horizontal text justification type
}
param.update(self.general_param)
param = self.read_param(param)
x = param['10']
y = param['20']
scale_x = param['41']
scale_y = 1
angle = param['50'] * pi / 180
font_size = param['40'] * self.trafo.m11
halign = [ALIGN_LEFT, ALIGN_CENTER, ALIGN_RIGHT, \
ALIGN_LEFT, ALIGN_LEFT, ALIGN_LEFT][param['72']]
text = unicode_decoder(param['1'], self.DWGCODEPAGE)
#style = self.style_dict[param['7']]
# print style
style_text = self.curstyle.Duplicate()
style_text.line_pattern = EmptyPattern
style_text.fill_pattern = self.get_pattern(param['62'])
style_name = upper(param['7'])
style = self.style_dict[style_name]
font_name = style['1000']
if font_name == 'Arial': # XXX
font_name = 'ArialMT'
style_text.font = GetFont(font_name)
# print style_text.font
style_text.font_size = font_size
trafo_text = Translation(self.trafo(x, y))(Rotation(angle))(Scale(scale_x, scale_y))
self.prop_stack.AddStyle(style_text.Duplicate())
self.simple_text(strip(text), trafo_text, halign = halign)
def load_3dface(self):
param={ '10': None,
'20': None,
#'30': None,
'11': None,
'21': None,
#'31': None,
'12': None,
'22': None,
#'32': None,
'13': None,
'23': None,
#'33': None,
'70': 0, # Invisible edge flags
}
param.update(self.general_param)
param = self.read_param(param)
self.path = CreatePath()
if param['70'] != 0:
print 'FIXMY. 3dface Invisible edge flags', param['70']
self.path.AppendLine(self.trafo(param['10'], param['20']))
self.path.AppendLine(self.trafo(param['11'], param['21']))
self.path.AppendLine(self.trafo(param['12'], param['22']))
self.path.AppendLine(self.trafo(param['13'], param['23']))
self.path.ClosePath()
style = self.get_line_style(**param)
self.prop_stack.AddStyle(style.Duplicate())
self.bezier(self.path,)
def load_spline(self):
param={ '70': 0, # Spline flag
'71': 0, # Degree of the spline curve
'72': 0, # Number of knots
'73': 0, # Number of control points
'74': 0, # Number of fit points
'40': [], # Knot value
'10': [], # Control points X
'20': [], # Control points Y
#'30': [], # Control points Z
}
param.update(self.general_param)
param = self.read_param(param)
closed = param['70'] & 1
path = CreatePath()
f13 = 1.0 / 3.0
f23 = 2.0 / 3.0
curve = path.AppendBezier
straight = path.AppendLine
pts = map(lambda x, y: self.trafo(x, y), param['10'],param['20'])
print 'SPLINE', param['70'], len(pts)
#for i in range(0, len(pts)-1):
#self.ellipse(.2, 0, 0, .2, pts[i][0],pts[i][1])
if param['70'] <= 1:
straight(pts[0])
for i in range(1, len(pts) / 4):
node = pts[i * 4]
c1 = pts[i * 4 - 3]
c2 = pts[i * 4 - 2]
print c1, c2, node
curve(c1, c2, node)
#straight(node)
if closed:
curve(pts[-3], pts[-2], pts[0])
else:
curve(pts[-4], pts[-4], pts[-1])
if param['70'] & 4 == 4:
last = pts[0]
cur = pts[1]
start = node = (last + cur) / 2
if closed:
straight(node)
else:
straight(last)
straight(node)
last = cur
for cur in pts[2:]:
c1 = f13 * node + f23 * last
node = (last + cur) / 2
c2 = f13 * node + f23 * last
curve(c1, c2, node)
last = cur
if closed:
curve(f13 * node + f23 * last, f13 * start + f23 * last, start)
else:
straight(last)
if param['70'] & 8 == 8:
node = pts[0]
c1 = pts[1]
c2 = pts[2]
# first node
straight(node)
if len(pts) > 4:
c2 = (pts[2] + pts[1]) / 2
c3 = pts[3] * f13 + pts[2] * f23
node = (c3 + c2) / 2
curve(c1, c2, node)
c1 = c3
for i in range(3, len(pts) - 3):
c2 = pts[i - 1] * f13 + pts[i] * f23
c3 = pts[i] * f23 + pts[i + 1] * f13
node = (c3 + c2) / 2
curve(c1, c2, node)
c1 = c3
c2 = pts[-4] * f13 + pts[-3] * f23
c3 = (pts[-3] + pts[-2]) / 2
node = (c3 + c2) / 2
curve(c1, c2, node)
c1 = c3
# last node
curve(c1, pts[-2], pts[-1])
style = self.get_line_style(**param)
self.prop_stack.AddStyle(style.Duplicate())
self.bezier(path,)
def load_bypass(self):
pass
###########################################################################
def get_compiled(self):
funclist={}
for char, name in self.functions.items():
method = getattr(self, name)
argc = method.im_func.func_code.co_argcount - 1
funclist[char] = (method, argc)
return funclist
def push_record(self, line1, line2):
# save data in stack
self.stack.append(line2)
self.stack.append(line1)
def read_record(self):
# if the stack is empty read two lines from a file
if self.stack:
line1 = self.stack.pop()
line2 = self.stack.pop()
else:
line1 = self.file.readline().strip()
line2 = self.file.readline().strip()
return line1, line2
def read_param(self, param, stop=None):
# read data and fill in the dictionary
if stop is None:
stop = [0, 9]
line1, line2 = self.read_record()
while line1 or line2:
if int(line1) in stop:
self.push_record(line1, line2)
return param
else:
if line1 in param:
value = convert(line1, line2, self.DWGCODEPAGE)
if type(param[line1]) == list:
param[line1].append(value)
else:
param[line1] = value
line1,line2 = self.read_record()
return False
def find_record(self, code1, code2):
# read data until to not overlap line1 == code1 and line2 == code2
# return True
# else return False
line1, line2 = self.read_record()
while line1 or line2:
if line1 == code1 and line2 == code2:
return True
line1, line2 = self.read_record()
return False
def load_section(self):
return_code = False
file = self.file
parsed = self.parsed
parsed_interval = self.parsed_interval
line1, line2 = self.read_record()
while line1 or line2:
interval_count = file.tell() / parsed_interval
if interval_count > parsed:
parsed += 10 # 10% progress
app.updateInfo(inf2 = '%u' % parsed + _('% of file is parsed...'), inf3 = parsed)
if line1 == '0' and line2 == 'ENDSEC':
return_code = True
break
elif line1 == '0':
self.run(line2)
line1, line2 = self.read_record()
self.parsed = parsed
return return_code
def load_sections(self):
return_code = False
param={ '2': '', # name section
}
param = self.read_param(param)
name=param['2']
print '**',name
if name == 'HEADER':
return_code, header_dict = self.load_HEADER()
self.process_header(header_dict)
elif name == 'CLASSES':
return_code = self.find_record('0','ENDSEC')
elif name == 'OBJECTS':
return_code = self.find_record('0','ENDSEC')
elif name == 'THUMBNAILIMAGE':
return_code = self.find_record('0','ENDSEC')
else:
return_code = self.load_section()
return return_code
def interpret(self):
file = self.file
if type(file) == StringType:
file = open(file, 'r')
file.seek(0)
readline = file.readline
fileinfo = os.stat(self.filename)
totalsize = fileinfo[6]
self.parsed = 0
self.parsed_interval = totalsize / 99 + 1
line1, line2 = self.read_record()
while line1 or line2:
if line1 == '0':
if line2 == 'EOF':
break
elif not self.load_sections():
warn_tb(INTERNAL, _('DXFLoader: error. Non find end of sections'))
line1, line2 = self.read_record()
def run(self,keyword, *args):
if keyword is None:
return
return_code = False
unknown_operator = (None, None)
funclist = self.funclist
if keyword is not None:
method, argc = funclist.get(keyword, unknown_operator)
if method is not None:
try:
##print '******', keyword
if len(args):
i = 0
while i<len(args):
return_code = apply(method, args[i:argc+i])
i+=argc
else:
return_code = method()
except:
warn_tb(INTERNAL, 'DXFLoader: error')
else:
self.add_message(_('Not interpreted %s') % keyword)
return return_code
def Load(self):
import time
start_time = time.clock()
#print ' ************ "DXF_objects" **************'
self.funclist = self.get_compiled()
self.document()
self.layer(name = _("DXF_objects"))
self.interpret()
self.end_all()
for style in self.dynamic_style_dict.values():
self.object.load_AddStyle(style)
self.object.load_Completed()
print 'times',time.clock() - start_time
return self.object
class WMFLoader(GenericLoader):
def __init__(self, file, filename, match):
GenericLoader.__init__(self, file, filename, match)
self.file = file
self.curstyle = Style()
self.verbosity = 0
self.gdiobjects = []
self.dcstack = []
self.curpoint = Point(0, 0)
def _print(self, format, *args, **kw):
if 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 get_struct(self, format):
size = calcsize(format)
return unpack(format, self.file.read(size))
def get_int16(self):
return self.get_struct('<h')[0]
def get_int32(self):
return self.get_struct('<i')[0]
def read_headers(self):
self.file.seek(0)
placeable = self.file.read(calcsize(struct_placeable_header))
key, handle, left, top, right, bottom, inch, reserved, checksum\
= unpack(struct_placeable_header, placeable)
if key != rx_magic:
raise SketchLoadError(_("The file is not a placeable "
"windows metafile"))
self._print("The file is not a placeable windows metafile")
sum = 0
for word in unpack('<10h', placeable[:20]):
sum = sum ^ word
if sum != checksum:
#raise SketchLoadError(_("The file has an incorrect checksum"))
self._print("The file has an incorrect checksum")
self.inch = inch
self.bbox = (left, top, right, bottom)
factor = 72.0 / self.inch
self.wx = self.wy = 0
self.wwidth = right - left
self.wheight = bottom - top
self.vx = self.vy = 0
self.vwidth = self.wwidth
self.vheight = self.wheight
self.base_trafo = Trafo(factor, 0, 0, -factor,
0, factor * self.vheight)
self.update_trafo()
header = self.file.read(calcsize(struct_wmf_header))
filetype, headersize, version, filesize, numobj, maxrecord, numparams\
= unpack(struct_wmf_header, header)
self._print('\nHeader\n------\n')
fmt = '% 10s: %s\n'
self._print(fmt, 'inch', self.inch)
self._print(fmt, 'bbox', self.bbox)
self._print(fmt, 'headersize', headersize)
self._print(fmt, 'version', version)
self._print(fmt, 'numobj', numobj)
self._print(fmt, 'numparams', numparams)
self._print(fmt, 'maxrecord', maxrecord)
self._print('\n')
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 add_gdiobject(self, object):
try:
idx = self.gdiobjects.index(None)
except ValueError:
self.gdiobjects.append(object)
else:
self.gdiobjects[idx] = object
def delete_gdiobject(self, idx):
self.gdiobjects[idx] = None
def SelectObject(self):
idx = self.get_int16()
try:
object = self.gdiobjects[idx]
except IndexError:
print 'Index Error:', idx, self.gdiobjects
raise
for property, value in object:
setattr(self.curstyle, property, value)
self._print('->', idx, object)
def DeleteObject(self):
idx = self.get_int16()
self.delete_gdiobject(idx)
self._print('->', idx)
def get_dc(self):
return self.curstyle.Duplicate(), self.trafo, self.curpoint
def set_dc(self, dc):
self.curstyle, self.trafo, self.curpoint = dc
def SaveDC(self):
self.dcstack.append(self.get_dc())
def RestoreDC(self):
self.set_dc(self.dcstack[-1])
del self.dcstack[-1]
def SetMapMode(self):
mode = self.get_int16()
self._print('->', mode)
def SetWindowOrg(self):
self.wy, self.wx = self.get_struct('<hh')
self.update_trafo()
self._print('->', self.wx, self.wy)
def SetWindowExt(self):
self.wheight, self.wwidth = self.get_struct('<hh')
self.update_trafo()
self._print('->', self.wwidth, self.wheight)
def SetPolyFillMode(self):
mode = self.get_int16()
self._print('->', mode)
SetBkMode = noop
SetBkColor = noop
SetROP2 = noop
def CreateBrushIndirect(self):
style, r, g, b, hatch = self.get_struct('<hBBBxh')
if style == 1:
pattern = EmptyPattern
else:
pattern = SolidPattern(CreateRGBColor(r/255.0, g/255.0, b/255.0))
self.add_gdiobject((('fill_pattern', pattern),))
self._print('->', style, r, g, b, hatch)
def DibCreatePatternBrush(self):
self.add_message(_("Bitmap brushes not yet implemented. Using black"))
pattern = SolidPattern(StandardColors.black)
self.add_gdiobject((('fill_pattern', pattern),))
def CreatePenIndirect(self):
style, widthx, widthy, r, g, b = self.get_struct('<hhhBBBx')
cap = (style & 0x0F00) >> 8
join = (style & 0x00F0) >> 4
style = style & 0x000F
if style == 5:
pattern = EmptyPattern
else:
pattern = SolidPattern(CreateRGBColor(r/255.0, g/255.0, b/255.0))
width = abs(widthx * self.trafo.m11)
self.add_gdiobject((('line_pattern', pattern,),
('line_width', width)))
self._print('->', style, widthx, widthy, r, g, b, cap, join)
def CreatePalette(self):
self.add_gdiobject((('ignore', None),))
def CreateRegion(self):
self.add_gdiobject((('ignore', None),))
CreateFontIndirect = CreatePalette
SelectPalette = noop
RealizePalette = noop
SetTextColor = noop
SetTextAlign = noop
SetTextJustification = noop
SetStretchBltMode = noop
def read_points(self, num):
coords = self.get_struct('<' + num * 'hh')
points = [];
append = points.append
trafo = self.trafo
for i in range(0, 2 * num, 2):
append(trafo(coords[i], coords[i + 1]))
return points
def Polyline(self):
points = self.read_points(self.get_int16())
if points:
path = CreatePath()
map(path.AppendLine, points)
self.prop_stack.AddStyle(self.curstyle.Duplicate())
self.prop_stack.SetProperty(fill_pattern = EmptyPattern)
self.bezier((path,))
#for i in range(len(points)):
# self._print('->', points[i])
def Polygon(self):
points = self.read_points(self.get_int16())
if points:
path = CreatePath()
map(path.AppendLine, points)
if path.Node(-1) != path.Node(0):
#print 'correct polygon'
path.AppendLine(path.Node(0))
path.load_close()
self.prop_stack.AddStyle(self.curstyle.Duplicate())
self.bezier((path,))
#for i in range(len(points)):
# self._print('->', points[i])
def PolyPolygon(self):
nr_of_polygons = self.get_int16()
nr_of_points = []
for i in range(nr_of_polygons):
nr_of_points.append(self.get_int16())
path = ()
for i in nr_of_points:
points = self.read_points(i)
if points:
subpath = CreatePath()
map(subpath.AppendLine, points)
if subpath.Node(-1) != subpath.Node(0):
subpath.AppendLine(subpath.Node(0))
subpath.load_close()
path = path + (subpath,)
if path:
self.prop_stack.AddStyle(self.curstyle.Duplicate())
self.bezier(path)
def MoveTo(self):
y, x = self.get_struct('<hh')
self.curpoint = self.trafo(x, y)
self._print('->', self.curpoint)
def LineTo(self):
y, x = self.get_struct('<hh')
p = self.trafo(x, y)
self.prop_stack.AddStyle(self.curstyle.Duplicate())
self.prop_stack.SetProperty(fill_pattern = EmptyPattern)
path = CreatePath()
path.AppendLine(self.curpoint)
path.AppendLine(p)
self.bezier((path,))
self.curpoint = p
self._print('->', self.curpoint)
def Ellipse(self):
bottom, right, top, left = self.get_struct('<hhhh')
left, top = self.trafo(left, top)
right, bottom = self.trafo(right, bottom)
self.prop_stack.AddStyle(self.curstyle.Duplicate())
self.ellipse((right - left) / 2, 0, 0, (bottom - top) / 2,
(right + left) / 2, (top + bottom) / 2)
def Arc(self, arc_type = const.ArcArc):
ye, xe, ys, xs, bottom, right, top, left = self.get_struct('<hhhhhhhh')
left, top = self.trafo(left, top)
right, bottom = self.trafo(right, bottom)
xs, ys = self.trafo(xs, ys)
xe, ye = self.trafo(xe, ye)
self.prop_stack.AddStyle(self.curstyle.Duplicate())
if arc_type == const.ArcArc:
self.prop_stack.SetProperty(fill_pattern = EmptyPattern)
if left != right and top != bottom:
t = Trafo((right - left) / 2, 0, 0, (bottom - top) / 2,
(right + left) / 2, (top + bottom) / 2).inverse()
# swap start and end-angle
end_angle = t(xs, ys).polar()[1]
start_angle = t(xe, ye).polar()[1]
else:
start_angle = end_angle = 0.0
self.ellipse((right - left) / 2, 0, 0, (bottom - top) / 2,
(right + left) / 2, (top + bottom) / 2,
start_angle = start_angle, end_angle = end_angle,
arc_type = arc_type)
def Pie(self):
self.Arc(const.ArcPieSlice)
def Rectangle(self):
bottom, right, top, left = self.get_struct('<hhhh')
left, top = self.trafo(left, top)
right, bottom = self.trafo(right, bottom)
self.prop_stack.AddStyle(self.curstyle.Duplicate())
self.rectangle(right - left, 0, 0, bottom - top, left, top)
def RoundRect(self):
ellh, ellw, bottom, right, top, left = self.get_struct('<hhhhhh')
left, top = self.trafo(left, top)
right, bottom = self.trafo(right, bottom)
ellw, ellh = self.trafo.DTransform(ellw, ellh)
self._print('->', left, top, right, bottom, ellw, ellh)
self.prop_stack.AddStyle(self.curstyle.Duplicate())
self.rectangle(right - left, 0, 0, bottom - top, left, top,
radius1 = abs(ellw / (right - left)),
radius2 = abs(ellh / (bottom - top)))
def Escape(self):
pass
def interpret(self):
tell = self.file.tell
function = -1
while function:
pos = tell()
size, function = self.get_struct('<ih')
self._print('%5d: %4x: %s' % (size, function,
wmf_functions.get(function, '')))
if hasattr(self, wmf_functions.get(function, '')):
getattr(self, wmf_functions[function])()
else:
if function:
self.file.read(2 * (size - 3))
self._print('*** unimplemented:',
wmf_functions.get(function, ''))
pos = pos + 2 * size
if tell() < pos:
self.file.read(pos - tell())
elif tell() > pos:
self._print('read too many bytes')
self.file.seek(pos - tell(), 1)
def Load(self):
self.document()
self.layer(name = _("WMF objects"))
self.read_headers()
self.interpret()
self.end_all()
self.object.load_Completed()
return self.object
class DSTLoader(GenericLoader):
def __init__(self, file, filename, match):
GenericLoader.__init__(self, file, filename, match)
self.file = file
self.basename, self.ext = os.path.splitext(filename)
def initialize(self):
self.draw = 0
self.scale = .283464566929
self.cur_x = 0.0
self.cur_y = 0.0
self.palette = Palette(self.basename)
self.path = CreatePath()
self.cur_style = Style()
self.cur_style.line_width = 0.6
self.cur_style.line_join = const.JoinRound
self.cur_style.line_cap = const.CapRound
self.cur_style.line_pattern = self.palette.next_color(1)
def readInt32(self, file):
try:
data = unpack('<I', file.read(4))[0]
except:
data = None
return data
def readInt8(self, file):
try:
data = int(unpack('B', file.read(1))[0])
except:
data = None
return data
def get_position(self, x=None, y=None):
if x is None:
x = self.cur_x
else:
x = float(x) * self.scale + self.cur_x
if y is None:
y = self.cur_y
else:
y = float(y) * self.scale + self.cur_y
return x, y
def bezier(self):
if self.path.len > 1:
self.prop_stack.AddStyle(self.cur_style.Duplicate())
GenericLoader.bezier(self, paths=(self.path, ))
self.path = CreatePath()
def jump(self, x, y):
x, y = self.get_position(x, y)
self.cur_x = x
self.cur_y = y
def needle_move(self, x, y):
if self.draw == 1:
self.path.AppendLine(x, y)
else:
self.bezier()
self.path.AppendLine(x, y)
self.cur_x = x
self.cur_y = y
def needle_down(self, x=None, y=None):
self.draw = 1
x, y = self.get_position(x, y)
self.needle_move(x, y)
def needle_up(self, x=None, y=None):
if self.draw == 1:
self.bezier()
self.draw = 0
x, y = self.get_position(x, y)
self.needle_move(x, y)
def decode_x(self, d1, d2, d3):
x = 1 * byte(d1, 7) - 1 * byte(d1, 6) + 9 * byte(d1, 5) - 9 * byte(
d1, 4)
x += 3 * byte(d2, 7) - 3 * byte(d2, 6) + 27 * byte(d2, 5) - 27 * byte(
d2, 4)
x += 81 * byte(d3, 5) - 81 * byte(d3, 4)
return x
def decode_y(self, d1, d2, d3):
y = 1 * byte(d1, 0) - 1 * byte(d1, 1) + 9 * byte(d1, 2) - 9 * byte(
d1, 3)
y += 3 * byte(d2, 0) - 3 * byte(d2, 1) + 27 * byte(d2, 2) - 27 * byte(
d2, 3)
y += 81 * byte(d3, 2) - 81 * byte(d3, 3)
return y
def decode_flag(self, d3):
if d3 == 243:
return END
if d3 & 195 == 3:
return NORMAL
elif d3 & 195 == 131:
return JUMP
elif d3 & 195 == 195:
return CHANGECOLOR
else:
return UNKNOWN
def readheader(self, file):
file.seek(0)
header = file.read(512).split('\r')
dict = {}
for i in header:
if i[2] == ':':
dict[i[0:2]] = i[3:].replace(' ', '')
x = int(dict['-X'])
y = int(dict['-Y'])
self.jump(x, y)
def Load(self):
file = self.file
fileinfo = os.stat(self.filename)
totalsize = fileinfo[6]
self.initialize()
self.readheader(file)
self.document()
self.layer(name=_("DST_objects"))
parsed = 0
parsed_interval = totalsize / 99 + 1
flag = UNKNOWN
while 1:
interval_count = file.tell() / parsed_interval
if interval_count > parsed:
parsed += 10 # 10% progress
app.updateInfo(inf2='%u' % parsed + '% of file is parsed...',
inf3=parsed)
data = file.read(3)
if len(data) < 3 or flag == 'END':
self.needle_up()
## END INTERPRETATION
app.updateInfo(inf2=_('Parsing is finished'), inf3=100)
break
d1, d2, d3 = unpack('BBB', data)
x = self.decode_x(d1, d2, d3)
y = self.decode_y(d1, d2, d3)
#XXX swap coordinate
x, y = y, x
flag = self.decode_flag(d3)
if flag == NORMAL:
self.needle_down(x, y)
elif flag == CHANGECOLOR:
self.needle_up(x, y)
self.cur_style.line_pattern = self.palette.next_color()
elif flag == JUMP:
#self.bezier() # cut the rope
self.jump(x, y)
self.end_all()
self.object.load_Completed()
return self.object
