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# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program 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 2
# of the License, or (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
# <pep8 compliant>
import re
import xml.dom.minidom
from math import cos, sin, tan, atan2, pi, ceil
import bpy
from mathutils import Vector, Matrix
from . import svg_colors
#### Common utilities ####
# TODO: 'em' and 'ex' aren't actually supported
SVGUnits = {'': 1.0,
'px': 1.0,
'in': 90,
'pt': 1.25,
'pc': 15.0,
'em': 1.0,
'ex': 1.0}
SVGEmptyStyles = {'useFill': None,
'fill': None}
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def SVGCreateCurve():
"""
Create new curve object to hold splines in
"""
cu = bpy.data.curves.new("Curve", 'CURVE')
obj = bpy.data.objects.new("Curve", cu)
bpy.context.scene.objects.link(obj)
return obj
def SVGFinishCurve():
"""
Finish curve creation
"""
pass
def SVGFlipHandle(x, y, x1, y1):
"""
Flip handle around base point
"""
x = x + (x - x1)
y = y + (y - y1)
return x, y
def SVGParseCoord(coord, size):
"""
Parse coordinate component to common basis
Needed to handle coordinates set in cm, mm, iches..
"""
r = re.compile('([0-9\\-\\+\\.])([A-z%]*)')
val = float(r.sub('\\1', coord))
unit = r.sub('\\2', coord).lower()
if unit == '%':
return float(size) / 100.0 * val
else:
global SVGUnits
return val * SVGUnits[unit]
return val
def SVGRectFromNode(node, context):
"""
Get display rectangle from node
"""
w = context['rect'][0]
h = context['rect'][1]
if node.getAttribute('viewBox'):
viewBox = node.getAttribute('viewBox').split()
w = SVGParseCoord(viewBox[2], w)
h = SVGParseCoord(viewBox[3], h)
else:
if node.getAttribute('width'):
w = SVGParseCoord(node.getAttribute('width'), w)
if node.getAttribute('height'):
h = SVGParseCoord(node.getAttribute('height'), h)
return (w, h)
def SVGMatrixFromNode(node, context):
"""
Get transformation matrix from given node
"""
rect = context['rect']
m = Matrix()
x = SVGParseCoord(node.getAttribute('x') or '0', rect[0])
y = SVGParseCoord(node.getAttribute('y') or '0', rect[1])
w = SVGParseCoord(node.getAttribute('width') or str(rect[0]), rect[0])
h = SVGParseCoord(node.getAttribute('height') or str(rect[1]), rect[1])
m = m.Translation(Vector((x, y, 0.0)))
if len(context['rects']) > 1:
m = m * m.Scale(w / rect[0], 4, Vector((1.0, 0.0, 0.0)))
m = m * m.Scale(h / rect[1], 4, Vector((0.0, 1.0, 0.0)))
if node.getAttribute('viewBox'):
viewBox = node.getAttribute('viewBox').split()
vx = SVGParseCoord(viewBox[0], w)
vy = SVGParseCoord(viewBox[1], h)
vw = SVGParseCoord(viewBox[2], w)
vh = SVGParseCoord(viewBox[3], h)
m = m * m.Translation(Vector((-vx, -vy, 0.0)))
m = m * m.Scale(w / vw, 4, Vector((1.0, 0.0, 0.0)))
m = m * m.Scale(h / vh, 4, Vector((0.0, 1.0, 0.0)))
return m
def SVGParseTransform(transform):
"""
Parse transform string and return transformation matrix
"""
m = Matrix()
r = re.compile('\s*([A-z]+)\s*\((.*?)\)')
for match in r.finditer(transform):
func = match.group(1)
params = match.group(2)
params = params.replace(',', ' ').split()
proc = SVGTransforms.get(func)
if proc is None:
raise Exception('Unknown trasnform function: ' + func)
m = m * proc(params)
return m
def SVGGetMaterial(color, context):
"""
Get material for specified color
"""
materials = context['materials']
if color in materials:
return materials[color]
diff = None
if color.startswith('#'):
color = color[1:]
if len(color) == 3:
color = color[0] * 2 + color[1] * 2 + color[2] * 2
diff = (int(color[0:2], 16), int(color[2:4], 16), int(color[4:6], 16))
elif color in svg_colors.SVGColors:
diff = svg_colors.SVGColors[color]
else:
return None
mat = bpy.data.materials.new(name='SVGMat')
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