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path.py
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Created
Sun, Sep 1, 11:14
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text/x-python
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Tue, Sep 3, 11:14 (2 d)
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rNIETZSCHEPYTHON nietzsche-python
path.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
""" This super class can be used to represent all svg path types.
"""
# Copyright (C) University of Basel 2019 {{{1
#
# 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 3 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, see <https://www.gnu.org/licenses/> 1}}}
__author__
=
"Christian Steiner"
__maintainer__
=
__author__
__copyright__
=
'University of Basel'
__email__
=
"christian.steiner@unibas.ch"
__status__
=
"Development"
__license__
=
"GPL v3"
__version__
=
"0.0.1"
from
lxml
import
etree
as
ET
from
os.path
import
isfile
from
svgpathtools.parser
import
parse_path
#from svgpathtools.path import Path
from
.attachable_object
import
AttachableObject
from
.class_spec
import
SemanticClass
class
Path
(
AttachableObject
,
SemanticClass
):
"""
This super class represents all types of svg paths.
Args:
node (lxml.etree.Element) node, containing information
path (svgpathtools.path.Path) svg path representation.
"""
XML_TAG
=
'path'
WORD_DELETION_PATH_TAG
=
'word-deletion-path'
def
__init__
(
self
,
id
=
0
,
node
=
None
,
path
=
None
,
style_class
=
''
,
tag
=
XML_TAG
):
self
.
intKeys
=
[
'id'
]
self
.
stringKeys
=
[
'style_class'
]
self
.
floatKeys
=
[]
if
node
is
not
None
:
self
.
id
=
int
(
node
.
get
(
'id'
))
if
bool
(
node
.
get
(
'id'
))
else
0
self
.
path
=
parse_path
(
node
.
get
(
'd'
))
if
bool
(
node
.
get
(
'd'
))
else
None
self
.
style_class
=
node
.
get
(
'style-class'
)
self
.
tag
=
node
.
tag
else
:
self
.
tag
=
tag
self
.
id
=
id
self
.
path
=
path
self
.
style_class
=
style_class
def
attach_object_to_tree
(
self
,
target_tree
):
"""Attach object to tree.
"""
if
target_tree
.
__class__
.
__name__
==
'_ElementTree'
:
target_tree
=
target_tree
.
getroot
()
obj_node
=
target_tree
.
xpath
(
'.//'
+
self
.
tag
+
'[@id="
%s
"]'
%
self
.
id
)[
0
]
\
if
(
len
(
target_tree
.
xpath
(
'.//'
+
self
.
tag
+
'[@id="
%s
"]'
%
self
.
id
))
>
0
)
\
else
ET
.
SubElement
(
target_tree
,
self
.
tag
)
for
key
in
self
.
floatKeys
:
if
self
.
__dict__
[
key
]
is
not
None
:
obj_node
.
set
(
key
.
replace
(
'_'
,
'-'
),
str
(
round
(
self
.
__dict__
[
key
],
3
)))
for
key
in
self
.
intKeys
+
self
.
stringKeys
:
if
self
.
__dict__
[
key
]
is
not
None
:
obj_node
.
set
(
key
.
replace
(
'_'
,
'-'
),
str
(
self
.
__dict__
[
key
]))
if
self
.
path
is
not
None
:
obj_node
.
set
(
'd'
,
self
.
path
.
d
())
@classmethod
def
get_semantic_dictionary
(
cls
):
""" Creates and returns a semantic dictionary as specified by SemanticClass.
"""
dictionary
=
{}
class_dict
=
cls
.
get_class_dictionary
()
properties
=
{}
properties
.
update
({
'path'
:
(
str
,
0
,
'{}/@d'
.
format
(
cls
.
XML_TAG
))})
properties
.
update
({
'style_class'
:
(
str
,
0
,
'{}/@style-class'
.
format
(
cls
.
XML_TAG
))})
dictionary
.
update
({
'class'
:
class_dict
})
dictionary
.
update
({
'properties'
:
properties
})
return
dictionary
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