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tdeedu/kig/pykig/pykig.py

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#!/usr/bin/env python
# -*- coding: iso-8859-15 -*-
#-------------------------------python------------------------pykig.py--#
# #
# Da Python a Kig #
# #
#--Maurizio Paolini-Daniele Zambelli-----------------------------2005---#
#
# (licenza GPL)
version="0.2.11"
#####
# Type constant
#####
TI=type(0)
TF=type(0.)
TS=type("")
TT=type((0, 0))
#####
# Constants: Point Style, Line Style, defaults values...
#####
PS=("Round", "RoundEmpty", "Rectangular", "RectangularEmpty", "Cross")
LS=("SolidLine", "DashLine", "DashDotLine", "DashDotDotLine", "DotLine")
KIGTRUE="true"
KIGFALSE="false"
DEFWIDTH=-1
DEFCOLOR="#0000ff"
DEFNAME="none"
PROPERTY_INI="Property which"
OBJECT_INI="Object type"
PROPERTY_END="Property"
OBJECT_END="Object"
DICT=(("&","&amp;"), ("<","&lt;"), (">","&gt;"),
("à","à"), ("è","è"), ("ì","ì"), ("ò","ò"), ("ù","ù"), ("é","é"))
#
# this is a trick to allow definitions like "p=Point(0,0,HIDDEN)"
#
HIDDEN=KIGFALSE
VISIBLE=KIGTRUE
#####
# Validation parameters
#####
def parameter(val, defval):
if val==None: return defval
else: return val
def validshown(shown):
if shown==KIGTRUE or shown==KIGFALSE: return shown
def validwidth(width):
if type(width)==TI: return width
def validpointstyle(ps):
if ps in PS: return ps
def validname(name):
if type(name)==TS: return name
def validlinestyle(ls):
if ls in LS: return ls
def validcolor(color):
if type(color)==TS: return color
#####
# if as function
#####
def rif(condition, val1, val2):
"""Return val1 if condition is True else return val2."""
if condition: return val1
else: return val2
#####
# Force some Python variables as kig variables
#####
def kig_double(val):
tp=type(val)
if tp==TI or tp==TF: return Double(val)
else: return val
def kig_int(val):
tp=type(val)
if tp==TI: return Int(val)
else: return val
def kig_string(val):
tp=type(val)
if tp==TS: return String(val)
else: return val
def kig_point(val):
tp=type(val)
if tp==TT:
x, y = val
return Point(x, y, internal=True)
else:
return val
def kig_relpoint(obj, displ):
x, y = displ
return RelativePoint(x, y, obj, internal=True)
#####
# base classes
#####
#####
# Classe KigDocument
#####
class KigDocument(object):
""" Classe che produce il documento kig.
genealogia:
KigDocument <- object
attributi di classe:
attributi:
axes
grid
outfilename
outfile
callkig
of
viewkig
hierarchy
internal
width
pointstyle
name
linestyle
shown
color
metodi:
viewappend
hierarchyappend
setcallkig
setof
str_open
close
noaxes
nogrid
hideobjects
showobjects
setwidth
setpointstyle
setname
setlinestyle
setshown
setcolor
setinternal
"""
def __init__(self, outfilename, callkig=True, of=False):
# print "KigDocument.__init__()"
self.axes = "1"
self.grid = "1"
self.outfilename=outfilename
self.callkig=callkig
self.of=of
try:
self.outfile = open(outfilename, 'w')
except IOError, value:
# print >> sys.stderr, outfilename, 'unwritable'
print >> sys.stderr, value
sys.exit(2)
# KigOut._kigdocument=self
KigDOP._kd=self
KigView._kd=self
self.viewkig=[]
self.hierarchy=[]
# Defaults values
self.internal=False
self.width=DEFWIDTH
self.pointstyle=PS[0]
self.name=DEFNAME
self.linestyle=LS[0]
self.shown=VISIBLE
self.color=DEFCOLOR
def viewappend(self, e): self.viewkig.append(e)
def hierarchyappend(self, e): self.hierarchy.append(e)
def setcallkig(v): self.callkig=v
def setof(v): self.of=v
def str_open(self):
return """<!DOCTYPE KigDocument>
<KigDocument axes="%s" grid="%s" CompatibilityVersion="0.7.0" Version="0.9.1" >
<CoordinateSystem>Euclidean</CoordinateSystem>
<Hierarchy>
""" % (self.axes, self.grid)
def close(self):
try:
self.outfile.write(self.str_open())
self.outfile.writelines(self.hierarchy)
self.outfile.write(" </Hierarchy>\n <View>\n")
for f in self.viewkig:
self.outfile.write(f.str_view())
self.outfile.write(" </View>\n</KigDocument>\n")
if self.outfile != sys.stdout:
self.outfile.close()
except IOError, value:
print >> sys.stderr, value
sys.exit(2)
try:
if self.callkig:
err = os.system('kig --nofork ' + self.outfilename)
except Exception, value:
print >> sys.stderr, value
if not self.of:
os.system('rm ' + self.outfilename)
def noaxes(self): self.axes="0"
def nogrid(self): self.grid="0"
def hideobjects(self): self.shown=HIDDEN
def showobjects(self): self.shown=VISIBLE
def setwidth(self, w): self.width=w
def setpointstyle(self, ps): self.pointstyle=ps
def setname(self, n): self.name=n
def setlinestyle(self, ls): self.linestyle=ls
def setshown(self, s): self.shown=s
def setcolor(self, c): self.color=c
def setinternal(self, v): self.internal=v
#####
# Classe KigDOP
#####
#class KigDOP(KigOut):
class KigDOP(object):
"""Classe da cui deriva ogni elemento che ha un id: Data, Object, Property.
genealogia:
kigDOP <- object
attributo di classe:
id-counter
attributi:
id
type
metodi:
getid
str_hierarchy
"""
_kd=None
_id_counter=0
def __init__(self, type):
KigDOP._id_counter+=1
self.id=KigDOP._id_counter
self._type=type
# self.getkigdocument().hierarchyappend(self.str_hierarchy())
KigDOP._kd.hierarchyappend(self.str_hierarchy())
def getid(self): return str(self.id)
def str_hierarchy(self): pass
#####
# Classe KigView
#####
#class KigView(KigOut):
class KigView(object):
""" Classe con i dati di visualizzazione
genealogia:
KigView <- object
attributi di classe:
_kd
attributi:
shown
width
style
color
name
pointstyle
metodi:
str_view
show
hide
"""
_kd=None
def __init__(self, object, shown, name, width, pointstyle, linestyle, color):
self.object=object
self.shown = parameter(shown, KigView._kd.shown)
self.width = parameter(width, KigView._kd.width)
self.pointstyle = parameter(pointstyle, KigView._kd.pointstyle)
self.linestyle = parameter(linestyle, KigView._kd.linestyle)
self.color = parameter(color, KigView._kd.color)
self.name = parameter(name, KigView._kd.name)
KigView._kd.viewappend(self)
def str_view(self):
"""Produce la stringa che viene scritta sotto <View>.
esempio:
<Draw width="-1" point-style="Round" namecalcer="none"
style="SolidLine" shown=None color="#0000ff" object="3" />
"""
return ' <Draw width="%s" point-style="%s" namecalcer="%s"\
style="%s" shown="%s" color="%s" object="%s" />\n' %\
(self.width, self.pointstyle, self.name,
self.linestyle, self.shown, self.color, self.object.getid())
#####
# Classe Data
#####
class Data(KigDOP):
""" Classe da cui deriva ogni elemento Data
genealogia:
Data <- KigDOP <- object
attributi:
val
metodi:
str_hierarchy
"""
def __init__(self, type, val):
self.val=val
KigDOP.__init__(self, type)
def str_hierarchy(self):
"""Produce la stringa che viene scritta sotto <Data>.
esempio:
<Data type="double" id="170" >0.1</Data>
"""
return ' <Data type="%s" id="%s" >%s</Data>\n' % \
(self._type, self.getid(), self.val)
#####
# Classe PropObj
#####
class PropObj(KigDOP):
""" Classe da cui deriva ogni elemento visibile
genealogia:
PropObj <- KigDOP <- object
attributi di classe:
attributi:
prop
objvec
view
metodi:
str_hierarchy
showname(self, n)
show(self)
hide(self)
setwidth(self, width)
setcolor(self, color)
setlinestyle(self, linestyle)
setpointstyle(self, pointstyle)
setname(self, n)
setshown(self, s)
getwidth(self)
getcolor(self)
getlinestyle(self)
getpointstyle(self)
"""
def __init__(self, prop, type, objvec, shown, name, internal,
width, pointstyle, linestyle, color):
self.prop=prop
self.objvec=objvec
self.n_lb=None
KigDOP.__init__(self, type)
internal=parameter(internal, KigDOP._kd.internal)
if internal:
self.view = None
else:
# Qui si assume che, se viene dato un nome ad un oggetto,
# si voglia anche visualizzare questo nome
if name: n_id=self.showname(name, shown, width, pointstyle, linestyle,
color)
else: n_id=None
self.view = KigView(self, shown, n_id, width, pointstyle, linestyle,
color)
def str_hierarchy(self):
"""Produce la stringa che viene scritta sotto <Data>.
esempio:
<Property which="mid-point" id="170" >
<Parent id="..." />
</Property>
oppure:
<Object type="ConstrainedPoint" id="14" >
<Parent id="13" />
<Parent id="10" />
</Object>
"""
retstring = ' <%s="%s" id="%s" >' %\
((self.prop and PROPERTY_INI or OBJECT_INI),
self._type, self.getid())
for p in self.objvec:
retstring = retstring + '\n <Parent id="%s" />' % p.getid()
retstring = retstring + '\n </%s>\n' % (self.prop and PROPERTY_END or
OBJECT_END)
return retstring
def showname(self, name, shown, width, pointstyle, linestyle, color):
n=String(name)
self.n_lb=Label(self, (0, 0), n, 0, shown, None, False,
width, pointstyle, linestyle, color)
return n.getid()
def show(self):
if self.view: self.view.shown=None
def hide(self):
if self.view: self.view.shown=KIGFALSE
def setwidth(self, width): self.view.width=width
def setcolor(self, color): self.view.color=color
def setlinestyle(self, linestyle):
if linestyle in LS: self.view.linestyle=linestyle
def setpointstyle(self, pointstyle):
if pointstyle in PS: self.view.pointstyle=pointstyle
def type(self): return Type(self)
def setname(self, n):
v=self.view
v.name=self.showname(n, v.shown, v.width, v.pointstyle, v.linestyle,
v.color)
def setshown(self, s): self.view.shown=s
#####
# Classe Property
#####
class Property(PropObj):
""" Classe da cui deriva ogni elemento Property
genealogia:
Property <- PropObj <- KigDOP <- object
"""
def __init__(self, type, parent, shown, name, internal,
width, pointstyle, linestyle, color):
PropObj.__init__(self, True, type, (parent,), shown, name, internal,
width, pointstyle, linestyle, color)
# print shown
#####
# Classe Object
#####
class Object(PropObj):
""" Classe da cui deriva ogni elemento Oggetto
genealogia:
Object <- PropObj <- KigDOP <- object
"""
def __init__(self, type, objvec, shown, name, internal,
width, pointstyle, linestyle, color):
PropObj.__init__(self, False, type, objvec, shown, name, internal,
width, pointstyle, linestyle, color)
#####
# Data
#####
data=(\
("Int", "int", "val"),
("Double", "double", "val"),
("String", "string", "convstr(val)"),
)
def convstr(s):
for o, n in DICT:
s=s.replace(o, n)
return s
def databuild(nomeclasse, nomekig, v="val"):
"""Create string with a Data class definition."""
return """class %s(Data):
def __init__(self, val):
Data.__init__(self, "%s", %s)
""" % (nomeclasse, nomekig, v)
for d in data:
p1, p2, p3 = d
exec databuild(p1, p2, p3)
#####
# Objects
#####
"""Da aggiungere:
("ConvexHall", "ConvexHall", "polygon,", "(polygon,),"),
("EllipseByFocusFocusPoint", "EllipseBFFP", "p1, p2, p3,", "(p1, p2, p3,),"),
("HyperbolaByFocusFocusPoint", "HyperbolaBFFP", "p1, p2, p3,", "(p1, p2, p3,),"),
(ConicsBy5Points", "ConicB5P", "p1, p2, p3, p4, p5,", "(p1, p2, p3, p4, p5),"),
("ParabolaBy3Points", "ParabolaBTP", "p1, p2, p3,", "(p1, p2, p3,),"),
("CocCurve", "CocCurve", "line, point,", "(line, point,),"),
"""
objects=(\
###### Points class
("Point", "FixedPoint", "x, y,", "(kig_double(x), kig_double(y)),"),
("ConstrainedPoint", "ConstrainedPoint",
"t, curve,", "(kig_double(t), curve),"),
("RelativePoint", "RelativePoint",
"x, y, p,", "(kig_double(x), kig_double(y), p),"),
###### segments, rays, lines
("Line", "LineAB", "p1, p2,", "(p1, p2),"),
("Segment", "SegmentAB", "p1, p2,", "(p1, p2),"),
("Ray", "RayAB", "p1, p2,", "(p1, p2),"),
("Orthogonal", "LinePerpend", "line, point,", "(line, point,),"),
("Parallel", "LineParallel", "line, point,", "(line, point,),"),
###### Circles, arcs, ...
("Circle", "CircleBCP", "center, point,", "(center, point,),"),
("CircleByCenterRadius", "CircleBPR", "center, radius,", "(center, radius,),"),
("CircleBy3Points", "CircleBTP", "p1, p2, p3,", "(p1, p2, p3,),"),
("ArcBy3Points", "ArcBTP", "p1, p2, p3,", "(p1, p2, p3,),"),
("ArcByCenterPointAngle", "ArcBCPA",
"center, point, angle,", "(center, point, angle),"),
###### Conics...
("ParabolaByDirectrixFocus", "ParabolaBDP", "line, point,", "(line, point,),"),
("VerticalCubic", "VerticalCubicB4P", "p1, p2, p3, p4,", "(p1, p2, p3, p4),"),
("ConicArc", "ConicArcBTPC", "p1, p2, p3, center,", "(p1, p2, p3, center),"),
#####
# intersections. The only standard object is the intersection
# of two lines, which always gives one single point
#####
("LineLineIntersection", "LineLineIntersection", "l1, l2,", "(l1, l2),"),
#####
# Classe CircleCircleIntersection e ConicLineIntersection
# l'intero "which" puo' assumere i valori 1 o -1 per indicare quale
# delle due intersezioni si desidera ottenere
# si potrebbe mettere un controllo...
#####
("CircleCircleIntersection", "CircleCircleIntersection",
"c1, c2, witch,", "(c1, c2, Int(witch),),"),
("ConicLineIntersection", "ConicLineIntersection",
"conic, line, witch,", "(conic, line, Int(witch),),"),
###### Classe Triangle
("Triangle", "TriangleB3P", "p1, p2, p3,", "(p1, p2, p3),"),
###### Classe Polygon (the only argument is a points vect)
("Polygon", "PolygonBNP", "pvec,", "pvec,"),
###### Classe PolygonBCV
# Poligono regolare dati il centro e un vertice; il terzo argomento
# e' un intero contenente il numero di lati
("PolygonBCV", "PoligonBCV",
"center, vertex, n,", "(center, vertex, Int(n)),"),
##### Classe PolygonVertex (poligono, intero >= 0)
("PolygonVertex", "PolygonVertex",
"polygon, i,", "(polygon, Int(i)),"),
##### Classe PolygonSide (poligono, intero >= 0)
("PolygonSide", "PolygonSide",
"polygon, i,", "(polygon, Int(i)),"),
###### vector, angle,...
("Vector", "Vector", "p1, p2,", "(p1, p2),"),
("Angle", "Angle", "p1, v, p2,", "(p1, v, p2),"),
###### Transformations
("Translate", "Translation", "obj, vector,", "(obj, vector),"),
("CentralSymmetry", "PointReflection", "obj, center,", "(obj, center),"),
("AxialSymmetry", "LineReflection", "obj, center,", "(obj, center),"),
("Rotate", "Rotation",
"obj, center, angle,", "(obj, center, angle),"),
("Scale", "ScalingOverCenter",
"obj, center, segment,", "(obj, center, segment),"),
("Scale2", "ScalingOverCenter2",
"obj, center, s1, s2,", "(obj, center, s1, s2),"),
("InvertPoint", "InvertPoint",
"point, circle,", "(point, circle),"),
("CircularInversion", "CircularInversion",
"objecttoinvert, circle,", "(objecttoinvert, circle),"),
("InvertLine", "InvertLine",
"line, circle,", "(line, circle),"),
("InvertCircle", "InvertCircle",
"circletoinvert, circle,", "(circletoinvert, circle),"),
("InvertArc", "InvertArc",
"arctoinvert, circle,", "(arctoinvert, circle),"),
("InvertSegment", "InvertSegment",
"segment, circle,", "(segment, circle),"),
###### Text, Label, ...
("Text", "Label",
"point, string, boxed=0,",
"(Int(boxed), kig_point(point), kig_string(string)),"),
("Label", "Label",
"obj, displ, string, boxed=0,",
"(Int(boxed),kig_relpoint(obj, displ),kig_string(string)),"),
("VarText", "Label",
"point, string, vars, boxed=0,",
"(Int(boxed), kig_point(point), \
kig_string(string))+tuple(vars),"),
("VarLabel", "Label",
"obj, displ, string, vars, boxed=0,",
"(Int(boxed), kig_relpoint(obj, displ), \
kig_string(string))+tuple(vars),"),
###### Python scripting... we need some work here...
("PythonScript", "PythonExecuteType",
"script, argvec,",
'(Object("PythonCompileType", (kig_string(script),), shown,\
name, internal, width, pointstyle, linestyle,\
color),)+tuple(argvec),'),
)
def objectbuild(nameclass, namekig, params, objparams):
"""Create string with a Object class definition."""
return """class %s(Object):
def __init__(self, %s shown=None, name=None, internal=None,
width=None, pointstyle=None, linestyle=None, color=None):
Object.__init__(self, "%s", %s shown, name, internal,
width, pointstyle, linestyle, color)
""" % (nameclass, params, namekig, objparams)
for o in objects:
p1, p2, p3, p4 = o
exec objectbuild(p1, p2, p3, p4)
#####
# Propertys
#####
property=(\
("Type", "base-object-type", "o,", "o,"),
("Coordinate", "coordinate", "point,", "point,"),
("XCoord", "coordinate-x", "point,", "point,"),
("YCoord", "coordinate-y", "point,", "point,"),
("MidPoints", "mid-point", "a, b,", "Segment(a, b, internal=True),"),
("MidPoint", "mid-point", "segment,", "segment,"),
("EndPointA", "end-point-A", "segment,", "segment,"),
("EndPointB", "end-point-B", "segment,", "segment,"),
("Length", "length", "segment,", "segment,"),
("Equation", "equation", "segment,", "segment,"),
("Slope", "slope", "segment,", "segment,"),
("NumOfSides", "polygon-number-of-sides", "poly,", "poly,"),
("Perimeter", "polygon-perimeter", "poly,", "poly,"),
("Surface", "polygon-surface", "poly,", "poly,"),
("CenterOfMass", "polygon-center-of-mass", "poly,", "poly,"),
("WindingNumber", "polygon-winding-number", "poly,", "poly,"),
("Radius", "radius", "circle,", "circle,"),
("Center", "center", "circle,", "circle,"),
("Bisector", "angle-bisector", "angle,", "angle,"),
("Support", "support", "object,", "object,"),
)
def propertybuild(nameclass, namekig, params, objparams):
"""Create string with a Property class definition."""
return """class %s(Property):
def __init__(self, %s shown=None, name=None, internal=False,
width=None, pointstyle=None, linestyle=None, color=None):
Property.__init__(self, "%s", %s shown, name, internal,
width, pointstyle, linestyle, color)
""" % (nameclass, params, namekig, objparams)
for p in property:
p1, p2, p3, p4 = p
exec propertybuild(p1, p2, p3, p4)
#####
# Start of properties definitions as Object's metod
#####
# da sistemare!
points =(Point, ConstrainedPoint, RelativePoint, PolygonVertex)
lines=(Segment, Ray, Vector, InvertLine)
segments=(Segment, Vector, PolygonSide, InvertSegment)
circles =(Circle, CircleBy3Points, CircularInversion, ArcBy3Points,
ArcByCenterPointAngle, InvertCircle)
polygons=(Polygon, PolygonBCV, Triangle)
angles =(Angle,)
supp = circles+lines
methods=(\
("coordinate", "coordinate", points),
("coordinate-x", "xcoord", points),
("coordinate-y", "ycoord", points),
("mid-point", "midpoint", segments),
("end-point-A", "endpointA", segments),
("end-point-B", "endpointB", segments),
("length", "length", segments),
("equation", "equation", lines),
("slope", "slope", lines),
("polygon-number-of-sides", "numofsides", polygons),
("polygon-perimeter", "perimeter", polygons),
("polygon-surface", "surface", polygons),
("polygon-center-of-mass", "centerofmass", polygons),
("polygon-winding-number", "windingnumber", polygons),
("center", "center", polygons),
("center", "center", circles),
("angle-bisector", "bisector", angles),
("support", "support", supp),
)
def methodsbuild(namekig):
"""Create string with a method class definition."""
return """def method(self,shown=None, name=None, internal=False,
width=None, pointstyle=None, linestyle=None, color=None):
return Property("%s", self, shown, name, internal,
width, pointstyle, linestyle, color)
""" % (namekig, )
for p in methods:
p1, p2, cl = p
exec methodsbuild(p1)
for c in cl:
setattr(c, p2, method)
#####
# Usage
#####
def usage(codexit):
print >> sys.stderr, """
usage: pykig.py [options...] file ...
Options:
-h, --help Show this text.
-o <kig_file>
--output <kig_file> output <kig_file> no call Kig
-v, --version output version
-n, --nokig no call Kig
examples:
$ pykig.py my_file.kpy
$ pykig.py -o output_file.kig my_file.kpy
$ ...
"""
sys.exit(codexit)
#####
# Main body
#####
import sys, traceback, os
#from math import * # for user's programs
import math # for user's programs
import getopt
import atexit
def prog():
try:
_opts, _args = getopt.getopt(sys.argv[1:], "hvno:",\
["help", "version", "nokig", "output="])
except getopt.GetoptError:
print "GetoptError"
usage(2)
_callKig=True
_of=False
for _opt, _arg in _opts:
if _opt in ("-h", "--help"):
usage(0)
if _opt in ("-v", "--version"):
print "version:", version
sys.exit(0)
if _opt in ("-n", "--nokig"):
_callKig=False
elif _opt in ("-o", "--output"):
_outfilename=_arg
_of=True
_callKig=False # se c'è il file di output, non viene chiamato Kig
if len(_args)==0:
_infilename=raw_input("Nome del file di input: ")
if not _infilename:
print "No Input filename"
usage(2)
elif len(_args)==1:
_infilename=_args[0]
else:
print "No infilename"
usage(2)
try:
_infile = open(_infilename, 'r')
except:
print >> sys.stderr, _infilename, 'unreadable'
sys.exit(2)
if _of:
if _outfilename=="-":
_n, _e = os.path.splitext(_infilename)
_outfilename=_n+'.kig'
else:
_outfilename="/tmp/pykig" + str(os.getpid()) + ".kig"
global kigdocument
kigdocument=KigDocument(_outfilename, _callKig, _of)
kd=kigdocument
try:
execfile(_infilename, globals())
except:
print >> sys.stderr, 'syntax error in', _infilename
_info = sys.exc_info() # vorrei stampare il traceback...
traceback.print_exc()
sys.exit(3)
kigdocument.close()
if _infile != sys.stdin:
_infile.close()
def lib():
_outfilename="/tmp/pykig" + str(os.getpid()) + ".kig"
global kigdocument
kigdocument=KigDocument(_outfilename)
kd=kigdocument
atexit.register(kigdocument.close)
if __name__ == "__main__":
prog()
else:
lib()
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