+#!/usr/bin/env python
+# --------------------------------------------------------------------
+# convert SVG to Ipe format
+# --------------------------------------------------------------------
+#
+# Copyright (C) 2009-2014 Otfried Cheong
+#
+# svgtoipe is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# svgtoipe is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with svgtoipe; if not, you can find it at
+# "http://www.gnu.org/copyleft/gpl.html", or write to the Free
+# Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+#
+# --------------------------------------------------------------------
+
+svgtoipe_version = "20091018"
+
+import sys
+import xml.dom.minidom as xml
+from xml.dom.minidom import Node
+import re
+import math
+
+import base64
+import cStringIO
+
+try:
+ from PIL import Image
+ have_pil = True
+except:
+ have_pil = False
+
+# --------------------------------------------------------------------
+
+color_keywords = {
+ "black" : "rgb(0, 0, 0)",
+ "green" :"rgb(0, 128, 0)",
+ "silver" :"rgb(192, 192, 192)",
+ "lime" :"rgb(0, 255, 0)",
+ "gray" :"rgb(128, 128, 128)",
+ "olive" :"rgb(128, 128, 0)",
+ "white" :"rgb(255, 255, 255)",
+ "yellow" :"rgb(255, 255, 0)",
+ "maroon" :"rgb(128, 0, 0)",
+ "navy" :"rgb(0, 0, 128)",
+ "red" :"rgb(255, 0, 0)",
+ "blue" :"rgb(0, 0, 255)",
+ "purple" :"rgb(128, 0, 128)",
+ "teal" :"rgb(0, 128, 128)",
+ "fuchsia" :"rgb(255, 0, 255)",
+ "aqua" :"rgb(0, 255, 255)",
+}
+
+attribute_names = [ "stroke",
+ "fill",
+ "stroke-opacity",
+ "fill-opacity",
+ "stroke-width",
+ "fill-rule",
+ "stroke-linecap",
+ "stroke-linejoin",
+ "stroke-dasharray",
+ "stroke-dashoffset",
+ "stroke-miterlimit",
+ "opacity",
+ "font-size" ]
+
+def printAttributes(n):
+ a = n.attributes
+ for i in range(a.length):
+ name = a.item(i).name
+ if name[:9] != "sodipodi:" and name[:9] != "inkscape:":
+ print " ", name, n.getAttribute(name)
+
+def parse_float(txt):
+ if not txt:
+ return None
+ if txt.endswith('px') or txt.endswith('pt'):
+ return float(txt[:-2])
+ elif txt.endswith('pc'):
+ return 12 * float(txt[:-2])
+ elif txt.endswith('mm'):
+ return 72.0 * float(txt[:-2]) / 25.4
+ elif txt.endswith('cm'):
+ return 72.0 * float(txt[:-2]) / 2.54
+ elif txt.endswith('in'):
+ return 72.0 * float(txt[:-2])
+ else:
+ return float(txt)
+
+def parse_opacity(txt):
+ if not txt:
+ return None
+ m = int(10 * (float(txt) + 0.05))
+ if m == 0: m = 1
+ return 10 * m
+
+def parse_list(string):
+ return re.findall("([A-Za-z]|-?[0-9]+\.?[0-9]*(?:e-?[0-9]*)?)", string)
+
+def parse_style(string):
+ sdict = {}
+ for item in string.split(';'):
+ if ':' in item:
+ key, value = item.split(':')
+ sdict[key.strip()] = value.strip()
+ return sdict
+
+def parse_color_component(txt):
+ if txt.endswith("%"):
+ return float(txt[:-1]) / 100.0
+ else:
+ return int(txt) / 255.0
+
+def parse_color(c):
+ if not c or c == 'none':
+ return None
+ if c in color_keywords:
+ c = color_keywords[c]
+ m = re.match(r"rgb\(([0-9\.]+%?),\s*([0-9\.]+%?),\s*([0-9\.]+%?)\s*\)", c)
+ if m:
+ r = parse_color_component(m.group(1))
+ g = parse_color_component(m.group(2))
+ b = parse_color_component(m.group(3))
+ return (r, g, b)
+ m = re.match(r"#([0-9a-fA-F])([0-9a-fA-F])([0-9a-fA-F])$", c)
+ if m:
+ r = int(m.group(1), 16) / 15.0
+ g = int(m.group(2), 16) / 15.0
+ b = int(m.group(3), 16) / 15.0
+ return (r, g, b)
+ m = re.match(r"#([0-9a-fA-F][0-9a-fA-F])([0-9a-fA-F][0-9a-fA-F])"
+ + r"([0-9a-fA-F][0-9a-fA-F])$", c)
+ if m:
+ r = int(m.group(1), 16) / 255.0
+ g = int(m.group(2), 16) / 255.0
+ b = int(m.group(3), 16) / 255.0
+ return (r, g, b)
+ sys.stderr.write("Unknown color: %s\n" % c)
+ return None
+
+def pnext(d, n):
+ l = []
+ while n > 0:
+ l.append(float(d.pop(0)))
+ n -= 1
+ return tuple(l)
+
+def parse_path(out, d):
+ d = re.findall("([A-Za-z]|-?[0-9]+\.?[0-9]*(?:e-?[0-9]*)?)", d)
+ x, y = 0.0, 0.0
+ xs, ys = 0.0, 0.0
+ while d:
+ if not d[0][0] in "01234567890.-":
+ opcode = d.pop(0)
+ if opcode == 'M':
+ x, y = pnext(d, 2)
+ out.write("%g %g m\n" % (x, y))
+ opcode = 'L'
+ elif opcode == 'm':
+ x1, y1 = pnext(d, 2)
+ x += x1
+ y += y1
+ out.write("%g %g m\n" % (x, y))
+ opcode = 'l'
+ elif opcode == 'L':
+ x, y = pnext(d, 2)
+ out.write("%g %g l\n" % (x, y))
+ elif opcode == 'l':
+ x1, y1 = pnext(d, 2)
+ x += x1
+ y += y1
+ out.write("%g %g l\n" % (x, y))
+ elif opcode == 'H':
+ x = pnext(d, 1)[0]
+ out.write("%g %g l\n" % (x, y))
+ elif opcode == 'h':
+ x += pnext(d, 1)[0]
+ out.write("%g %g l\n" % (x, y))
+ elif opcode == 'V':
+ y = pnext(d, 1)[0]
+ out.write("%g %g l\n" % (x, y))
+ elif opcode == 'v':
+ y += pnext(d, 1)[0]
+ out.write("%g %g l\n" % (x, y))
+ elif opcode == 'C':
+ x1, y1, xs, ys, x, y = pnext(d, 6)
+ out.write("%g %g %g %g %g %g c\n" % (x1, y1, xs, ys, x, y))
+ elif opcode == 'c':
+ x1, y1, xs, ys, xf, yf = pnext(d, 6)
+ x1 += x; y1 += y
+ xs += x; ys += y
+ x += xf; y += yf
+ out.write("%g %g %g %g %g %g c\n" % (x1, y1, xs, ys, x, y))
+ elif opcode == 'S' or opcode == 's':
+ x2, y2, xf, yf = pnext(d, 4)
+ if opcode == 's':
+ x2 += x; y2 += y
+ xf += x; yf += y
+ x1 = x + (x - xs); y1 = y + (y - ys)
+ out.write("%g %g %g %g %g %g c\n" % (x1, y1, x2, y2, xf, yf))
+ xs, ys = x2, y2
+ x, y = xf, yf
+ elif opcode == 'Q':
+ xs, ys, x, y = pnext(d, 4)
+ out.write("%g %g %g %g q\n" % (xs, ys, x, y))
+ elif opcode == 'q':
+ xs, ys, xf, yf = pnext(d, 4)
+ xs += x; ys += y
+ x += xf; y += yf
+ out.write("%g %g %g %g q\n" % (xs, ys, x, y))
+ elif opcode == 'T' or opcode == 't':
+ xf, yf = pnext(d, 2)
+ if opcode == 't':
+ xf += x; yf += y
+ x1 = x + (x - xs); y1 = y + (y - ys)
+ out.write("%g %g %g %g q\n" % (x1, y1, xf, yf))
+ xs, ys = x1, y1
+ x, y = xf, yf
+ elif opcode == 'A' or opcode == 'a':
+ rx, ry, phi, large_arc, sweep, x2, y2 = pnext(d, 7)
+ if opcode == 'a':
+ x2 += x; y2 += y
+ draw_arc(out, x, y, rx, ry, phi, large_arc, sweep, x2, y2)
+ x, y = x2, y2
+ elif opcode in 'zZ':
+ out.write("h\n")
+ else:
+ sys.stderr.write("Unrecognised opcode: %s\n" % opcode)
+
+def parse_transformation(txt):
+ d = re.findall("[a-zA-Z]+\([^)]*\)", txt)
+ m = Matrix()
+ while d:
+ m1 = Matrix(d.pop(0))
+ m = m * m1
+ return m
+
+def get_gradientTransform(n):
+ if n.hasAttribute("gradientTransform"):
+ return parse_transformation(n.getAttribute("gradientTransform"))
+ return Matrix()
+
+def parse_transform(n):
+ if n.hasAttribute("transform"):
+ return parse_transformation(n.getAttribute("transform"))
+ return None
+
+# Convert from endpoint to center parameterization
+# www.w3.org/TR/2003/REC-SVG11-20030114/implnote.html#ArcImplementationNotes
+def draw_arc(out, x1, y1, rx, ry, phi, large_arc, sweep, x2, y2):
+ phi = math.pi * phi / 180.0
+ cp = math.cos(phi); sp = math.sin(phi)
+ dx = .5 * (x1 - x2); dy = .5 * (y1 - y2)
+ x1p = cp * dx + sp * dy; y1p = -sp * dx + cp * dy
+ r2 = (((rx * ry)**2 - (rx * y1p)**2 - (ry * x1p)**2)/
+ ((rx * y1p)**2 + (ry * x1p)**2))
+ if r2 < 0: r2 = 0
+ r = math.sqrt(r2)
+ if large_arc == sweep:
+ r = -r
+ cxp = r * rx * y1p / ry; cyp = -r * ry * x1p / rx
+ cx = cp * cxp - sp * cyp + .5 * (x1 + x2)
+ cy = sp * cxp + cp * cyp + .5 * (y1 + y2)
+ m = Matrix([rx, 0, 0, ry, 0, 0])
+ m = Matrix([cp, sp, -sp, cp, cx, cy]) * m
+ if sweep == 0:
+ m = m * Matrix([1, 0, 0, -1, 0, 0])
+ out.write("%s %g %g a\n" % (str(m), x2, y2))
+
+# --------------------------------------------------------------------
+
+class Matrix(object):
+
+ # Default is identity matrix
+ def __init__(self, string = None):
+ self.values = [1, 0, 0, 1, 0, 0]
+ if not string or string == "":
+ return
+ if isinstance(string, list):
+ self.values = string
+ return
+ mat = re.match(r"([a-zA-Z]+)\(([^)]*)\)$", string)
+ if not mat:
+ sys.stderr.write("Unknown transform: %s\n" % string)
+ op = mat.group(1)
+ d = [float(x) for x in parse_list(mat.group(2))]
+ if op == "matrix":
+ self.values = d
+ elif op == "translate":
+ if len(d) == 1: d.append(0.0)
+ self.values = [1, 0, 0, 1, d[0], d[1]]
+ elif op == "scale":
+ if len(d) == 1: d.append(d[0])
+ sx, sy = d
+ self.values = [sx, 0, 0, sy, 0, 0]
+ elif op == "rotate":
+ phi = math.pi * d[0] / 180.0
+ self.values = [math.cos(phi), math.sin(phi),
+ -math.sin(phi), math.cos(phi), 0, 0]
+ elif op == "skewX":
+ tphi = math.tan(math.pi * d[0] / 180.0)
+ self.values = [1, 0, tphi, 1, 0, 0]
+ elif op == "skewY":
+ tphi = math.tan(math.pi * d[0] / 180.0)
+ self.values = [1, tphi, 0, 1, 0, 0]
+ else:
+ sys.stderr.write("Unknown transform: %s\n" % string)
+
+ def __call__(self, other):
+ return (self.values[0]*other[0] + self.values[2]*other[1] + self.values[4],
+ self.values[1]*other[0] + self.values[3]*other[1] + self.values[5])
+
+ def inverse(self):
+ d = float(self.values[0]*self.values[3] - self.values[1]*self.values[2])
+ return Matrix([self.values[3]/d, -self.values[1]/d,
+ -self.values[2]/d, self.values[0]/d,
+ (self.values[2]*self.values[5] -
+ self.values[3]*self.values[4])/d,
+ (self.values[1]*self.values[4] -
+ self.values[0]*self.values[5])/d])
+
+ def __mul__(self, other):
+ a, b, c, d, e, f = self.values
+ u, v, w, x, y, z = other.values
+ return Matrix([a*u + c*v, b*u + d*v, a*w + c*x,
+ b*w + d*x, a*y + c*z + e, b*y + d*z + f])
+
+ def __str__(self):
+ a, b, c, d, e, f = self.values
+ return "%g %g %g %g %g %g" % (a, b, c, d, e, f)
+
+# --------------------------------------------------------------------
+
+class Svg():
+
+ def __init__(self, fname):
+ self.dom = xml.parse(fname)
+ attr = { }
+ for a in attribute_names:
+ attr[a] = None
+ self.attributes = [ attr ]
+ self.defs = { }
+ for n in self.dom.childNodes:
+ if n.nodeType == Node.ELEMENT_NODE and n.tagName == "svg":
+ if n.hasAttribute("viewBox"):
+ x, y, w, h = [float(x) for x in parse_list(n.getAttribute("viewBox"))]
+ self.width = w
+ self.height = h
+ self.origin = (x, y)
+ else:
+ self.width = parse_float(n.getAttribute("width"))
+ self.height = parse_float(n.getAttribute("height"))
+ self.origin = (0, 0)
+ self.root = n
+ return
+
+# --------------------------------------------------------------------
+
+ def parse_svg(self, outname):
+ self.out = open(outname, "w")
+ self.out.write('<?xml version="1.0"?>\n')
+ self.out.write('<!DOCTYPE ipe SYSTEM "ipe.dtd">\n')
+ self.out.write('<ipe version="70005" creator="svgtoipe %s">\n' %
+ svgtoipe_version)
+ self.out.write('<ipestyle>\n')
+ self.out.write(('<layout paper="%d %d" frame="%d %d" ' +
+ 'origin="0 0" crop="no"/>\n') %
+ (self.width, self.height, self.width, self.height))
+ for t in range(10, 100, 10):
+ self.out.write('<opacity name="%d%%" value="0.%d"/>\n' % (t, t))
+ # set SVG defaults
+ self.out.write('<pathstyle cap="0" join="0" fillrule="wind"/>\n')
+ self.out.write('</ipestyle>\n')
+ # collect definitions
+ for n in self.root.childNodes:
+ if n.nodeType != Node.ELEMENT_NODE:
+ continue
+ if hasattr(self, "def_" + n.tagName):
+ getattr(self, "def_" + n.tagName)(n)
+ # write definitions into stylesheet
+ if len(self.defs) > 0:
+ self.out.write('<ipestyle>\n')
+ for k in self.defs:
+ if self.defs[k][0] == "linearGradient":
+ self.write_linear_gradient(k)
+ elif self.defs[k][0] == "radialGradient":
+ self.write_radial_gradient(k)
+ self.out.write('</ipestyle>\n')
+ # start real data
+ self.out.write('<page>\n')
+ m = Matrix([1, 0, 0, 1, 0, self.height / 2.0])
+ m = m * Matrix([1, 0, 0, -1, 0, 0])
+ m = m * Matrix([1, 0, 0, 1,
+ -self.origin[0], -(self.origin[1] + self.height / 2.0)])
+ self.out.write('<group matrix="%s">\n' % str(m))
+ for n in self.root.childNodes:
+ if n.nodeType != Node.ELEMENT_NODE:
+ continue
+ if hasattr(self, "node_" + n.tagName):
+ getattr(self, "node_" + n.tagName)(n)
+ else:
+ sys.stderr.write("Unhandled node: %s\n" % n.tagName)
+ self.out.write('</group>\n')
+ self.out.write('</page>\n')
+ self.out.write('</ipe>\n')
+ self.out.close()
+
+# --------------------------------------------------------------------
+
+ def write_linear_gradient(self, k):
+ typ, x1, x2, y1, y2, stops, matrix = self.defs[k]
+ self.out.write('<gradient name="g%s" type="axial" extend="yes"\n' % k)
+ self.out.write(' matrix="%s"' % str(matrix))
+ self.out.write(' coords="%g %g %g %g">\n' % (x1, y1, x2, y2))
+ for s in stops:
+ offset, color = s
+ self.out.write(' <stop offset="%g" color="%g %g %g"/>\n' %
+ (offset, color[0], color[1], color[2]))
+ self.out.write('</gradient>\n')
+
+ def write_radial_gradient(self, k):
+ typ, cx, cy, r, fx, fy, stops, matrix = self.defs[k]
+ self.out.write('<gradient name="g%s" type="radial" extend="yes"\n' % k)
+ self.out.write(' matrix="%s"' % str(matrix))
+ self.out.write(' coords="%g %g %g %g %g %g">\n' % (fx, fy, 0, cx, cy, r))
+ for s in stops:
+ offset, color = s
+ self.out.write(' <stop offset="%g" color="%g %g %g"/>\n' %
+ (offset, color[0], color[1], color[2]))
+ self.out.write('</gradient>\n')
+
+ def get_stops(self, n):
+ stops = []
+ for m in n.childNodes:
+ if m.nodeType != Node.ELEMENT_NODE:
+ continue
+ if m.tagName != "stop":
+ continue # should not happen
+ offs = m.getAttribute("offset")
+ if offs.endswith("%"):
+ offs = float(offs[:-1]) / 100.0
+ else:
+ offs = float(offs)
+ color = parse_color(m.getAttribute("stop-color"))
+ if m.hasAttribute("style"):
+ sdict = parse_style(m.getAttribute("style"))
+ if "stop-color" in sdict:
+ color = parse_color(sdict["stop-color"])
+ stops.append((offs, color))
+ if len(stops) == 0:
+ if n.hasAttribute("xlink:href"):
+ ref = n.getAttribute("xlink:href")
+ if ref.startswith("#") and ref[1:] in self.defs:
+ stops = self.defs[ref[1:]][5]
+ return stops
+
+ def def_linearGradient(self, n):
+ #printAttributes(n)
+ kid = n.getAttribute("id")
+ x1 = 0; y1 = 0
+ x2 = self.width; y2 = self.height
+ if n.hasAttribute("x1"):
+ s = n.getAttribute("x1")
+ if s.endswith("%"):
+ x1 = self.width * float(s[:-1]) / 100.0
+ else:
+ x1 = parse_float(s)
+ if n.hasAttribute("x2"):
+ s = n.getAttribute("x2")
+ if s.endswith("%"):
+ x2 = self.width * float(s[:-1]) / 100.0
+ else:
+ x2 = parse_float(s)
+ if n.hasAttribute("y1"):
+ s = n.getAttribute("y1")
+ if s.endswith("%"):
+ y1 = self.width * float(s[:-1]) / 100.0
+ else:
+ y1 = parse_float(s)
+ if n.hasAttribute("y2"):
+ s = n.getAttribute("y2")
+ if s.endswith("%"):
+ y2 = self.width * float(s[:-1]) / 100.0
+ else:
+ y2 = parse_float(s)
+ matrix = get_gradientTransform(n)
+ stops = self.get_stops(n)
+ self.defs[kid] = ("linearGradient", x1, x2, y1, y2, stops, matrix)
+
+ def def_radialGradient(self, n):
+ #printAttributes(n)
+ kid = n.getAttribute("id")
+ cx = "50%"; cy = "50%"; r = "50%"
+ if n.hasAttribute("cx"):
+ cx = n.getAttribute("cx")
+ if cx.endswith("%"):
+ cx = self.width * float(cx[:-1]) / 100.0
+ else:
+ cx = parse_float(cx)
+ if n.hasAttribute("cy"):
+ cy = n.getAttribute("cy")
+ if cy.endswith("%"):
+ cy = self.width * float(cy[:-1]) / 100.0
+ else:
+ cy = parse_float(cy)
+ if n.hasAttribute("r"):
+ r = n.getAttribute("r")
+ if r.endswith("%"):
+ r = self.width * float(r[:-1]) / 100.0
+ else:
+ r = parse_float(r)
+ if n.hasAttribute("fx"):
+ s = n.getAttribute("fx")
+ if s.endswith("%"):
+ fx = self.width * float(s[:-1]) / 100.0
+ else:
+ fx = parse_float(s)
+ else:
+ fx = cx
+ if n.hasAttribute("fy"):
+ s = n.getAttribute("fy")
+ if s.endswith("%"):
+ fy = self.width * float(s[:-1]) / 100.0
+ else:
+ fy = parse_float(s)
+ else:
+ fy = cy
+ matrix = get_gradientTransform(n)
+ stops = self.get_stops(n)
+ self.defs[kid] = ("radialGradient", cx, cy, r, fx, fy, stops, matrix)
+
+ def def_clipPath(self, node):
+ kid = node.getAttribute("id")
+ # only a single path is implemented
+ for n in node.childNodes:
+ if n.nodeType != Node.ELEMENT_NODE or n.tagName != "path":
+ continue
+ m = parse_transform(n)
+ d = n.getAttribute("d")
+ output = cStringIO.StringIO()
+ parse_path(output, d)
+ path = output.getvalue()
+ output.close()
+ self.defs[kid] = ("clipPath", m, path)
+ return
+
+ def def_g(self, group):
+ for n in group.childNodes:
+ if n.nodeType != Node.ELEMENT_NODE:
+ continue
+ if hasattr(self, "def_" + n.tagName):
+ getattr(self, "def_" + n.tagName)(n)
+
+ def def_defs(self, node):
+ self.def_g(node)
+
+# --------------------------------------------------------------------
+
+ def parse_attributes(self, n):
+ pattr = self.attributes[-1]
+ attr = { }
+ for a in attribute_names:
+ if n.hasAttribute(a):
+ attr[a] = n.getAttribute(a)
+ else:
+ attr[a] = pattr[a]
+ if n.hasAttribute("style"):
+ sdict = parse_style(n.getAttribute("style"))
+ for a in attribute_names:
+ if a in sdict:
+ attr[a] = sdict[a]
+ return attr
+
+ def write_pathattributes(self, a):
+ stroke = parse_color(a["stroke"])
+ if stroke:
+ self.out.write(' stroke="%g %g %g"' % stroke)
+ fill = a["fill"]
+ if fill and fill.startswith("url("):
+ mat = re.match("url\(#([^)]+)\).*", fill)
+ if mat:
+ grad = mat.group(1)
+ if grad in self.defs and (self.defs[grad][0] == "linearGradient" or
+ self.defs[grad][0] == "radialGradient"):
+ self.out.write(' fill="1" gradient="g%s"' % grad)
+ else:
+ fill = parse_color(a["fill"])
+ if fill:
+ self.out.write(' fill="%g %g %g"' % fill)
+ opacity = parse_opacity(a["opacity"])
+ fill_opacity = parse_opacity(a["fill-opacity"])
+ stroke_opacity = parse_opacity(a["stroke-opacity"])
+ if fill and fill_opacity:
+ opacity = fill_opacity
+ if not fill and stroke and stroke_opacity:
+ opacity = stroke_opacity
+ if opacity and opacity != 100:
+ self.out.write(' opacity="%d%%"' % opacity)
+ stroke_width = parse_float(a["stroke-width"])
+ if a["stroke-width"]:
+ self.out.write(' pen="%g"' % stroke_width)
+ if a["fill-rule"] == "nonzero":
+ self.out.write(' fillrule="wind"')
+ k = {"butt" : 0, "round" : 1, "square" : 2 }
+ if a["stroke-linecap"] in k:
+ self.out.write(' cap="%d"' % k[a["stroke-linecap"]])
+ k = {"miter" : 0, "round" : 1, "bevel" : 2 }
+ if a["stroke-linejoin"] in k:
+ self.out.write(' join="%d"' % k[a["stroke-linejoin"]])
+ dasharray = a["stroke-dasharray"]
+ dashoffset = a["stroke-dashoffset"]
+ if dasharray and dashoffset and dasharray != "none":
+ d = parse_list(dasharray)
+ off = parse_float(dashoffset)
+ self.out.write(' dash="[%s] %g"' % (" ".join(d), off))
+
+# --------------------------------------------------------------------
+
+ def node_g(self, group):
+ # printAttributes(group)
+ attr = self.parse_attributes(group)
+ self.attributes.append(attr)
+ self.out.write('<group')
+ m = parse_transform(group)
+ if m:
+ self.out.write(' matrix="%s"' % m)
+ self.out.write('>\n')
+ for n in group.childNodes:
+ if n.nodeType != Node.ELEMENT_NODE:
+ continue
+ if hasattr(self, "node_" + n.tagName):
+ getattr(self, "node_" + n.tagName)(n)
+ else:
+ sys.stderr.write("Unhandled node: %s\n" % n.tagName)
+ self.out.write('</group>\n')
+ self.attributes.pop()
+
+ def collect_text(self, root):
+ for n in root.childNodes:
+ if n.nodeType == Node.TEXT_NODE:
+ self.text += n.data
+ if n.nodeType != Node.ELEMENT_NODE:
+ continue
+ if n.tagName == "tspan": # recurse
+ self.collect_text(n)
+
+ def node_text(self, t):
+ if not t.hasAttribute("x") or not t.hasAttribute("y"):
+ sys.stderr.write("Text without coordinates ignored\n")
+ return
+ x = float(t.getAttribute("x"))
+ y = float(t.getAttribute("y"))
+ attr = self.parse_attributes(t)
+ self.out.write('<text pos="%g %g"' % (x,y))
+ self.out.write(' transformations="affine" valign="baseline"')
+ m = parse_transform(t)
+ if not m: m = Matrix()
+ m = m * Matrix([1, 0, 0, -1, x, y]) * Matrix([1, 0, 0, 1, -x, -y])
+ self.out.write(' matrix="%s"' % m)
+ if attr["font-size"]:
+ self.out.write(' size="%g"' % parse_float(attr["font-size"]))
+ color = parse_color(attr["fill"])
+ if color:
+ self.out.write(' stroke="%g %g %g"' % color)
+ self.text = ""
+ self.collect_text(t)
+ self.out.write('>%s</text>\n' % self.text.encode("UTF-8"))
+
+ def node_image(self, node):
+ if not have_pil:
+ sys.stderr.write("No Python image library, <image> ignored\n")
+ return
+ href = node.getAttribute("xlink:href")
+ if not href.startswith("data:image/png;base64,"):
+ sys.stderr.write("Image ignored, href = %s...\n" % href[:40])
+ return
+ x = float(node.getAttribute("x"))
+ y = float(node.getAttribute("y"))
+ w = float(node.getAttribute("width"))
+ h = float(node.getAttribute("height"))
+ clipped = False
+ if node.hasAttribute("clip-path"):
+ mat = re.match("url\(#([^)]+)\).*", node.getAttribute("clip-path"))
+ if mat:
+ cp = mat.group(1)
+ if cp in self.defs and self.defs[cp][0] == "clipPath":
+ cp, m, path = self.defs[cp]
+ clipped = True
+ self.out.write('<group matrix="%s" clip="%s">\n' % (str(m), path))
+ self.out.write('<group matrix="%s">\n' % str(m.inverse()))
+ self.out.write('<image rect="%g %g %g %g"' % (x, y, x + w, y + h))
+ data = base64.b64decode(href[22:])
+ fin = cStringIO.StringIO(data)
+ image = Image.open(fin)
+ m = parse_transform(node)
+ if not m:
+ m = Matrix()
+ m = m * Matrix([1, 0, 0, -1, x, y+h]) * Matrix([1, 0, 0, 1, -x, -y])
+ self.out.write(' matrix="%s"' % m)
+ self.out.write(' width="%d" height="%d" ColorSpace="DeviceRGB"' %
+ image.size)
+ self.out.write(' BitsPerComponent="8" encoding="base64"> \n')
+ if True:
+ data = cStringIO.StringIO()
+ for pixel in image.getdata():
+ data.write("%c%c%c" % pixel[:3])
+ self.out.write(base64.b64encode(data.getvalue()))
+ data.close()
+ else:
+ count = 0
+ for pixel in image.getdata():
+ self.out.write("%02x%02x%02x" % pixel[:3])
+ count += 1
+ if count == 10:
+ self.out.write("\n")
+ count = 0
+ fin.close()
+ self.out.write('</image>\n')
+ if clipped:
+ self.out.write('</group>\n</group>\n')
+
+ # handled in def pass
+ def node_linearGradient(self, n):
+ pass
+
+ def node_radialGradient(self, n):
+ pass
+
+ def node_rect(self, n):
+ attr = self.parse_attributes(n)
+ self.out.write('<path')
+ m = parse_transform(n)
+ if m:
+ self.out.write(' matrix="%s"' % m)
+ self.write_pathattributes(attr)
+ self.out.write('>\n')
+ x = float(n.getAttribute("x"))
+ y = float(n.getAttribute("y"))
+ w = float(n.getAttribute("width"))
+ h = float(n.getAttribute("height"))
+ self.out.write("%g %g m %g %g l %g %g l %g %g l h\n" %
+ (x, y, x + w, y, x + w, y + h, x, y + h))
+ self.out.write('</path>\n')
+
+ def node_circle(self, n):
+ self.out.write('<path')
+ m = parse_transform(n)
+ if m:
+ self.out.write(' matrix="%s"' % m)
+ attr = self.parse_attributes(n)
+ self.write_pathattributes(attr)
+ self.out.write('>\n')
+ cx = float(n.getAttribute("cx"))
+ cy = float(n.getAttribute("cy"))
+ r = float(n.getAttribute("r"))
+ self.out.write("%g 0 0 %g %g %g e\n" % (r, r, cx, cy))
+ self.out.write('</path>\n')
+
+ def node_ellipse(self, n):
+ self.out.write('<path')
+ m = parse_transform(n)
+ if m:
+ self.out.write(' matrix="%s"' % m)
+ attr = self.parse_attributes(n)
+ self.write_pathattributes(attr)
+ self.out.write('>\n')
+ cx = 0
+ cy = 0
+ if n.hasAttribute("cx"):
+ cx = float(n.getAttribute("cx"))
+ if n.hasAttribute("cy"):
+ cy = float(n.getAttribute("cy"))
+ rx = float(n.getAttribute("rx"))
+ ry = float(n.getAttribute("ry"))
+ self.out.write("%g 0 0 %g %g %g e\n" % (rx, ry, cx, cy))
+ self.out.write('</path>\n')
+
+ def node_line(self, n):
+ self.out.write('<path')
+ m = parse_transform(n)
+ if m:
+ self.out.write(' matrix="%s"' % m)
+ attr = self.parse_attributes(n)
+ self.write_pathattributes(attr)
+ self.out.write('>\n')
+ x1 = 0; y1 = 0; x2 = 0; y2 = 0
+ if n.hasAttribute("x1"):
+ x1 = float(n.getAttribute("x1"))
+ if n.hasAttribute("y1"):
+ y1 = float(n.getAttribute("y1"))
+ if n.hasAttribute("x2"):
+ x2 = float(n.getAttribute("x2"))
+ if n.hasAttribute("y2"):
+ y2 = float(n.getAttribute("y2"))
+ self.out.write("%g %g m %g %g l\n" % (x1, y1, x2, y2))
+ self.out.write('</path>\n')
+
+ def node_polyline(self, n):
+ self.polygon(n, closed=False)
+
+ def node_polygon(self, n):
+ self.polygon(n, closed=True)
+
+ def polygon(self, n, closed):
+ self.out.write('<path')
+ m = parse_transform(n)
+ if m:
+ self.out.write(' matrix="%s"' % m)
+ attr = self.parse_attributes(n)
+ self.write_pathattributes(attr)
+ self.out.write('>\n')
+ d = parse_list(n.getAttribute("points"))
+ op = "m"
+ while d:
+ x = float(d.pop(0))
+ y = float(d.pop(0))
+ self.out.write("%g %g %s\n" % (x, y, op))
+ op = "l"
+ if closed:
+ self.out.write("h\n")
+ self.out.write('</path>\n')
+
+ def node_path(self, n):
+ self.out.write('<path')
+ m = parse_transform(n)
+ if m:
+ self.out.write(' matrix="%s"' % m)
+ attr = self.parse_attributes(n)
+ self.write_pathattributes(attr)
+ self.out.write('>\n')
+ d = n.getAttribute("d")
+ parse_path(self.out, d)
+ self.out.write('</path>\n')
+
+# --------------------------------------------------------------------
+
+def main():
+ if len(sys.argv) != 2 and len(sys.argv) != 3:
+ sys.stderr.write("Usage: svgtoipe <figure.svg> [ <figure.ipe> ]\n")
+ return
+ fname = sys.argv[1]
+ if len(sys.argv) > 2:
+ outname = sys.argv[2]
+ else:
+ if fname[-4:].lower() == ".svg":
+ outname = fname[:-4] + ".ipe"
+ else:
+ outname = fname + ".ipe"
+ svg = Svg(fname)
+ svg.parse_svg(outname)
+
+if __name__ == '__main__':
+ main()
+
+# --------------------------------------------------------------------
projects / Misc / ipe.git / commitdiff