NaoY-2501/create_QRcode.py

## create_QRcode.py
import xml.dom.minidom

import qrcode
import qrcode.image.svg as svg


def make_qrcode_svg(text):
    """
    QRコードのSVGを作る関数
    :param text: QRコードに埋め込みたい文字列
    :return: QRコードのSVG
    """
    factory = svg.SvgPathImage
    img = qrcode.make(
        text,
        image_factory=factory,
        version=1,
        box_size=6,
        error_correction=qrcode.constants.ERROR_CORRECT_L)
    return img


def set_dom_attr(dom, elem, values):
    """
    属性ノードを生成して要素を設定する関数
    :param dom: xml.dom.minidom.Document Object
    :param elem: 要素
    :param values: 属性
    :return:
    """
    for attr, value in values.items():
        # 属性ノードを生成
        subnode_attrs = dom.createAttribute(attr)
        # 属性ノードの値を設定
        subnode_attrs.value = value
        # 属性ノードを要素ノードにセットする
        elem.setAttributeNode(subnode_attrs)


def create_dom(img):
    """
    QRコードのsvgをXMLとして出力する関数
    :param img: QRコードのsvg
    :return dom: xml.dom.minidom.Document Object
    """
    width = img.width
    items = img.get_image()
    path = img.make_path()

    # DOM
    dom = xml.dom.minidom.Document()
    # svg要素を作成
    elem = dom.createElement('svg')
    # DOMに子要素elemを追加
    dom.appendChild(elem)

    # svgからxmlns属性を取得
    xmlns = items.get('xmlns')

    # svg要素の属性を指定
    values = {
        'width': f'{width}mm',
        'height': f'{width}mm',
        'viewBox': f'0 0 {width} {width}',
        'xmlns': xmlns
    }

    # DOMにsvg要素を設定
    set_dom_attr(dom, elem, values)

    # path要素を作成
    path_node = dom.createElement('path')
    # elem要素に子要素(path_node)を追加
    elem.appendChild(path_node)

    # pathからd属性を取得
    d = path.get('d')
    # pathからid属性を取得
    id_ = path.get('id')
    # pathからstyle属性を取得
    style = path.get('style')

    # path要素の属性を指定
    values = {
        'd': d,
        'id': id_,
        'style': style,
    }

    # DOMにpath要素を設定
    set_dom_attr(dom, path_node, values)
    return dom


def main():
    # QRコードに埋め込むテキストの読み込み
    with open('zen.txt', encoding='utf-8') as f:
        text = f.read()
    # QRコードのSVG作成
    qr = make_qrcode_svg(text)
    # DOMオブジェクトを作成
    dom = create_dom(qr)
    # DOMをXMLに整形
    xml = dom.toprettyxml()

    HTML = f'''
<!DOCTYPE html>
<head>
<title>sample QR</title>
</head>
<body>
<h1>The Zen of Python</h1>
{xml}
</body>
</html>
'''
    # HTMLに埋め込み
    with open('sample.html', 'w', encoding='utf-8') as f:
        f.write(HTML)


if __name__ == '__main__':
    main()

## zen.txt
The Zen of Python, by Tim Peters

Beautiful is better than ugly.
Explicit is better than implicit.
Simple is better than complex.
Complex is better than complicated.
Flat is better than nested.
Sparse is better than dense.
Readability counts.
Special cases aren't special enough to break the rules.
Although practicality beats purity.
Errors should never pass silently.
Unless explicitly silenced.
In the face of ambiguity, refuse the temptation to guess.
There should be one-- and preferably only one --obvious way to do it.
Although that way may not be obvious at first unless you're Dutch.
Now is better than never.
Although never is often better than *right* now.
If the implementation is hard to explain, it's a bad idea.
If the implementation is easy to explain, it may be a good idea.
Namespaces are one honking great idea -- let's do more of those!
	import xml.dom.minidom

	import qrcode
	import qrcode.image.svg as svg


	def make_qrcode_svg(text):
	"""
	QRコードのSVGを作る関数
	:param text: QRコードに埋め込みたい文字列
	:return: QRコードのSVG
	"""
	factory = svg.SvgPathImage
	img = qrcode.make(
	text,
	image_factory=factory,
	version=1,
	box_size=6,
	error_correction=qrcode.constants.ERROR_CORRECT_L)
	return img


	def set_dom_attr(dom, elem, values):
	"""
	属性ノードを生成して要素を設定する関数
	:param dom: xml.dom.minidom.Document Object
	:param elem: 要素
	:param values: 属性
	:return:
	"""
	for attr, value in values.items():
	# 属性ノードを生成
	subnode_attrs = dom.createAttribute(attr)
	# 属性ノードの値を設定
	subnode_attrs.value = value
	# 属性ノードを要素ノードにセットする
	elem.setAttributeNode(subnode_attrs)


	def create_dom(img):
	"""
	QRコードのsvgをXMLとして出力する関数
	:param img: QRコードのsvg
	:return dom: xml.dom.minidom.Document Object
	"""
	width = img.width
	items = img.get_image()
	path = img.make_path()

	# DOM
	dom = xml.dom.minidom.Document()
	# svg要素を作成
	elem = dom.createElement('svg')
	# DOMに子要素elemを追加
	dom.appendChild(elem)

	# svgからxmlns属性を取得
	xmlns = items.get('xmlns')

	# svg要素の属性を指定
	values = {
	'width': f'{width}mm',
	'height': f'{width}mm',
	'viewBox': f'0 0 {width} {width}',
	'xmlns': xmlns
	}

	# DOMにsvg要素を設定
	set_dom_attr(dom, elem, values)

	# path要素を作成
	path_node = dom.createElement('path')
	# elem要素に子要素(path_node)を追加
	elem.appendChild(path_node)

	# pathからd属性を取得
	d = path.get('d')
	# pathからid属性を取得
	id_ = path.get('id')
	# pathからstyle属性を取得
	style = path.get('style')

	# path要素の属性を指定
	values = {
	'd': d,
	'id': id_,
	'style': style,
	}

	# DOMにpath要素を設定
	set_dom_attr(dom, path_node, values)
	return dom


	def main():
	# QRコードに埋め込むテキストの読み込み
	with open('zen.txt', encoding='utf-8') as f:
	text = f.read()
	# QRコードのSVG作成
	qr = make_qrcode_svg(text)
	# DOMオブジェクトを作成
	dom = create_dom(qr)
	# DOMをXMLに整形
	xml = dom.toprettyxml()

	HTML = f'''
	<!DOCTYPE html>
	<head>
	<title>sample QR</title>
	</head>
	<body>
	<h1>The Zen of Python</h1>
	{xml}
	</body>
	</html>
	'''
	# HTMLに埋め込み
	with open('sample.html', 'w', encoding='utf-8') as f:
	f.write(HTML)


	if __name__ == '__main__':
	main()
	The Zen of Python, by Tim Peters

	Beautiful is better than ugly.
	Explicit is better than implicit.
	Simple is better than complex.
	Complex is better than complicated.
	Flat is better than nested.
	Sparse is better than dense.
	Readability counts.
	Special cases aren't special enough to break the rules.
	Although practicality beats purity.
	Errors should never pass silently.
	Unless explicitly silenced.
	In the face of ambiguity, refuse the temptation to guess.
	There should be one-- and preferably only one --obvious way to do it.
	Although that way may not be obvious at first unless you're Dutch.
	Now is better than never.
	Although never is often better than right now.
	If the implementation is hard to explain, it's a bad idea.
	If the implementation is easy to explain, it may be a good idea.
	Namespaces are one honking great idea -- let's do more of those!