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#!/usr/bin/env python
"""
cubicsuperpath.py
Copyright (C) 2005 Aaron Spike, aaron@ekips.org
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
import simplepath
def CubicSuperPath(simplepath):
csp = []
subpath = -1
subpathstart = []
last = []
lastctrl = []
for s in simplepath:
cmd, params = s
if cmd == 'M':
if last:
csp[subpath].append([lastctrl[:],last[:],last[:]])
subpath += 1
csp.append([])
subpathstart = params[:]
last = params[:]
lastctrl = params[:]
elif cmd == 'L':
csp[subpath].append([lastctrl[:],last[:],last[:]])
last = params[:]
lastctrl = params[:]
elif cmd == 'C':
csp[subpath].append([lastctrl[:],last[:],params[:2]])
last = params[-2:]
lastctrl = params[2:4]
elif cmd == 'Q':
#TODO: convert to cubic
csp[subpath].append([lastctrl[:],last[:],last[:]])
last = params[-2:]
lastctrl = params[-2:]
elif cmd == 'A':
#TODO: convert to cubics
csp[subpath].append([lastctrl[:],last[:],last[:]])
last = params[-2:]
lastctrl = params[-2:]
elif cmd == 'Z':
csp[subpath].append([lastctrl[:],last[:],last[:]])
last = subpathstart[:]
lastctrl = subpathstart[:]
#append final superpoint
csp[subpath].append([lastctrl[:],last[:],last[:]])
return csp
def unCubicSuperPath(csp):
a = []
for subpath in csp:
if subpath:
a.append(['M',subpath[0][1][:]])
for i in range(1,len(subpath)):
a.append(['C',subpath[i-1][2][:] + subpath[i][0][:] + subpath[i][1][:]])
return a
def parsePath(d):
return CubicSuperPath(simplepath.parsePath(d))
def formatPath(p):
return simplepath.formatPath(unCubicSuperPath(p))
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