def test_get_css_rules_from_svg_document04(self):
# 'style' element
# See also: svg/style8.css
parser = SVGParser()
root = parser.create_element('svg')
style = root.create_sub_element('style')
style.text = '@import url(http://localhost:8000/svg/style8.css);'
style_sheets = get_css_style_sheets_from_svg_document(root)
self.assertEqual(1, len(style_sheets))
css_style_sheet = style_sheets[0]
self.assertIsNone(css_style_sheet.owner_rule)
self.assertEqual('text/css', css_style_sheet.type)
self.assertIsNone(css_style_sheet.href)
self.assertEqual(style, css_style_sheet.owner_node)
self.assertIsNone(css_style_sheet.parent_style_sheet)
self.assertIsNone(css_style_sheet.title)
self.assertEqual('all', css_style_sheet.media.media_text)
css_rules = css_style_sheet.css_rules
self.assertEqual(1, len(css_rules))
css_rule = css_rules[0]
self.assertEqual(CSSRule.IMPORT_RULE, css_rule.type)
css_stylesheet = css_rule.style_sheet
self.assertEqual(15,
len(css_stylesheet.css_rules),
msg='http server may not be working.')
def test_inline_style01(self):
parser = SVGParser()
rect = parser.create_element('rect')
self.assertIsInstance(rect.style, CSSStyleDeclaration)
self.assertIsNone(rect.style.parent_rule)
self.assertEqual(0, rect.style.length)
self.assertEqual(0, len(rect.attributes))
rect.style.set_property('fill', 'red')
rect.style.set_property('stroke', 'blue')
rect.style.set_property('stroke-width', '5')
self.assertEqual(3, rect.style.length)
self.assertEqual('red', rect.style.get_property_value('fill'))
self.assertEqual('blue', rect.style.get_property_value('stroke'))
self.assertEqual('5', rect.style.get_property_value('stroke-width'))
self.assertEqual(1, len(rect.attributes))
expected = 'fill: red; stroke-width: 5; stroke: blue;'
self.assertEqual(expected, rect.get('style'))
rect.style.remove_property('stroke-width')
self.assertEqual(2, rect.style.length)
self.assertEqual(1, len(rect.attributes))
expected = 'fill: red; stroke: blue;'
self.assertEqual(expected, rect.get('style'))
rect.style.set_property('fill', None)
rect.style.set_property('stroke', '')
rect.style.set_property('stroke', '') # no error
self.assertEqual(0, rect.style.length)
self.assertEqual(0, len(rect.attributes))
def test_get_css_rules_from_svg_document03(self):
# 'link' element
# See also: svg/style8.css
parser = SVGParser()
root = parser.create_element('svg')
link = root.create_sub_element('link')
link.attributes.update({
'rel': 'stylesheet',
'href': 'http://localhost:8000/svg/style8.css',
'type': 'text/css',
})
style_sheets = get_css_style_sheets_from_svg_document(root)
self.assertEqual(1, len(style_sheets))
css_style_sheet = style_sheets[0]
self.assertIsNone(css_style_sheet.owner_rule)
self.assertEqual('text/css', css_style_sheet.type)
self.assertEqual('http://localhost:8000/svg/style8.css',
css_style_sheet.href)
self.assertEqual(link, css_style_sheet.owner_node)
self.assertIsNone(css_style_sheet.parent_style_sheet)
self.assertIsNone(css_style_sheet.title)
self.assertEqual(0, css_style_sheet.media.length)
css_rules = css_style_sheet.css_rules
self.assertEqual(15,
len(css_rules),
msg='http server may not be working.')
def test_inline_style02(self):
parser = SVGParser()
rect = parser.create_element('rect')
rect.style.update({
'fill': 'red',
'stroke': 'blue',
'stroke-width': '5',
})
self.assertIsInstance(rect.style, CSSStyleDeclaration)
self.assertIsNone(rect.style.parent_rule)
self.assertEqual(3, rect.style.length)
self.assertEqual('red', rect.style.get_property_value('fill'))
self.assertEqual('blue', rect.style.get_property_value('stroke'))
self.assertEqual('5', rect.style.get_property_value('stroke-width'))
self.assertEqual(1, len(rect.attributes))
expected = 'fill: red; stroke-width: 5; stroke: blue;'
self.assertEqual(expected, rect.get('style'))
rect.style.update({'fill': 'white'})
self.assertEqual('white', rect.style.get_property_value('fill'))
self.assertEqual(3, rect.style.length)
self.assertEqual(1, len(rect.attributes))
del rect.style['fill']
self.assertEqual(2, rect.style.length)
self.assertEqual(1, len(rect.attributes))
rect.style['stroke'] = None
self.assertEqual(1, rect.style.length)
self.assertEqual(1, len(rect.attributes))
rect.style['stroke-width'] = ''
self.assertEqual(0, len(rect.attributes))
self.assertEqual(0, rect.style.length)
rect.style['fill'] = 'white', 'IMPORTANT' # value with priority
value = rect.style['fill']
priority = rect.style.get_property_priority('fill')
self.assertEqual('white', value)
self.assertEqual('important', priority)
rect.style['fill'] = 'black' # value without priority
value = rect.style['fill']
priority = rect.style.get_property_priority('fill')
self.assertEqual('black', value)
self.assertEqual('important', priority)
rect.style.remove_property('fill')
rect.style.set_property('fill', 'none')
value = rect.style['fill']
priority = rect.style.get_property_priority('fill')
self.assertEqual('none', value)
self.assertEqual('', priority)
rect.style.set_property('fill', 'blue', 'Important')
value = rect.style.get_property_value('fill')
priority = rect.style.get_property_priority('fill')
self.assertEqual('blue', value)
self.assertEqual('important', priority)
def test_get_css_style04(self):
parser = SVGParser()
svg = '''
<svg width="5cm" height="4cm" viewBox="0 0 500 400"
xmlns="http://www.w3.org/2000/svg">
<style type="text/css">
@import url(svg/style8.css);
@media screen { /* rule (1) */
/* hide navigation controls when printing */
#navigation { display: none }
@media (max-width: 12cm) { /* rule (2) */
/* keep notes in flow when printing to narrow pages */
.note { float: none }
}
}
@media screen and (min-width: 35em),
print and (min-width: 40em) {
#section_navigation { float: left; width: 10em; }
}
.Border { fill:none; stroke:blue; stroke-width:1 }
.Connect { fill:none; stroke:#888888; stroke-width:2 }
.SamplePath { fill:none; stroke:red; stroke-width:5 }
.EndPoint { fill:none; stroke:#888888; stroke-width:2 }
.CtlPoint { fill:#888888; stroke:none }
.AutoCtlPoint { fill:none; stroke:blue; stroke-width:4 }
.Label { font-size:22; font-family:Verdana }
</style>
<text id="heading" x="-280" y="-270">
SVG demonstration</text>
<rect class="Border" x="1" y="1" width="498" height="398" id="rect01" />
<polyline class="Connect" points="100,200 100,100" id="polyline01" />
<path class="SamplePath" d="M100,200 C100,100 250,100 250,200
S400,300 400,200" id="path01" />
<circle class="EndPoint" cx="100" cy="200" r="10" id="circle01" />
<text class="Label" x="25" y="70" id="text01">
M100,200 C100,100 250,100 250,200</text>
</svg>
'''
root = parser.fromstring(svg)
rect = root.get_element_by_id('rect01')
css_rules = get_css_rules(rect)
css_style, css_style_important = get_css_style(rect, css_rules)
self.assertEqual(4, len(css_style))
self.assertEqual(0, len(css_style_important))
css_style = rect.get_computed_style()
self.assertEqual('none', css_style.get('fill'))
self.assertEqual('blue', css_style.get('stroke'))
self.assertEqual(1, css_style.get('stroke-width'))
text = root.get_element_by_id('heading')
css_style = text.get_computed_style()
self.assertEqual(24,
css_style.get('font-size'),
msg='http server may not be working.')
self.assertEqual(700, css_style.get('font-weight'))
def test_new_value_percentage2(self):
parser = SVGParser()
root = parser.create_element('svg')
group = root.create_sub_element('g')
group.attributes.update({
'font-size': '16',
})
a = SVGLength(context=group)
a.new_value(92.00042345, SVGLength.TYPE_PERCENTAGE)
self.assertEqual(92.00042345, a.value(SVGLength.TYPE_PERCENTAGE))
self.assertEqual('%', a.unit)
self.assertEqual('92%', a.tostring())
def test_get_css_rules_from_xml_stylesheet02(self):
# xml-stylesheet
svg = '''<?xml version="1.0" standalone="no"?>
<?xml-stylesheet type="text/css" href="svg/style8.css" title="default"?>
<?xml-stylesheet type="text/css" href="svg/ny1.css" title="extras"?>
<?demo-pi ?>
<!--comment-->
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg width="600px" height="600px" viewBox="-300 -300 600 600"
xmlns="http://www.w3.org/2000/svg">
</svg>
'''
parser = SVGParser()
tree = parser.parse(StringIO(svg))
root = tree.getroot()
style_sheets = get_css_style_sheets_from_xml_stylesheet(root)
self.assertEqual(2, len(style_sheets))
css_style_sheet = style_sheets[0]
css_rules = css_style_sheet.css_rules
self.assertEqual(15, len(css_rules))
css_rule = css_rules[0]
self.assertEqual(CSSRule.STYLE_RULE, css_rule.type)
self.assertEqual('svg', css_rule.selector_text)
css_rule = css_rules[14]
self.assertEqual(CSSRule.STYLE_RULE, css_rule.type)
self.assertEqual('#inner-petals .segment:hover > .segment-edge',
css_rule.selector_text)
css_rules = style_sheets[1].css_rules
self.assertEqual(7, len(css_rules))
css_rule = css_rules[0]
self.assertEqual(CSSRule.STYLE_RULE, css_rule.type)
self.assertEqual('text', css_rule.selector_text)
css_rule = css_rules[6]
self.assertEqual(CSSRule.STYLE_RULE, css_rule.type)
self.assertEqual('.tick', css_rule.selector_text)
def test_font_size_vw(self):
# 'vw unit'
parser = SVGParser()
root = parser.create_element('svg')
root.attributes.update({
'width': '200mm',
})
group = root.create_sub_element('g')
text = group.create_sub_element('text')
text.attributes.update({
'font-size': '8vw',
})
a = SVGLength(text.attributes['font-size'].value, context=None)
expected = 8
self.assertEqual(expected, a.value(), msg=a)
a = SVGLength(text.attributes['font-size'].value, context=text)
expected = 8 * 200 / 100 # 16mm
self.assertAlmostEqual(expected, a.value(SVGLength.TYPE_MM), msg=a)
def test_get_css_style03(self):
parser = SVGParser()
svg = '''
<svg width="5cm" height="4cm" viewBox="0 0 500 400"
xmlns="http://www.w3.org/2000/svg">
<style type="text/css"><![CDATA[
.Border { fill:none; stroke:blue; stroke-width:1 }
.Connect { fill:none; stroke:#888888; stroke-width:2 }
.SamplePath { fill:none; stroke:red; stroke-width:5 }
.EndPoint { fill:none; stroke:#888888; stroke-width:2 }
.CtlPoint { fill:#888888; stroke:none }
.AutoCtlPoint { fill:none; stroke:blue; stroke-width:4 }
.Label { font-size:22; font-family:Verdana }
]]></style>
<rect class="Border" x="1" y="1" width="498" height="398" id="rect01" />
<polyline class="Connect" points="100,200 100,100" id="polyline01" />
<path class="SamplePath" d="M100,200 C100,100 250,100 250,200
S400,300 400,200" id="path01" />
<circle class="EndPoint" cx="100" cy="200" r="10" id="circle01" />
<text class="Label" x="25" y="70" id="text01">
M100,200 C100,100 250,100 250,200</text>
</svg>
'''
root = parser.fromstring(svg)
rect = root.get_element_by_id('rect01')
css_style = rect.get_computed_style()
self.assertEqual('none', css_style.get('fill'))
self.assertEqual('blue', css_style.get('stroke'))
self.assertEqual(1, css_style.get('stroke-width'))
path = root.get_element_by_id('path01')
css_style = path.get_computed_style()
self.assertEqual('none', css_style.get('fill'))
self.assertEqual('red', css_style.get('stroke'))
self.assertEqual(5, css_style.get('stroke-width'))
text = root.get_element_by_id('text01')
css_style = text.get_computed_style()
self.assertEqual(['Verdana'], css_style.get('font-family'))
self.assertEqual(22, css_style.get('font-size'))
def main():
"""Usage: python3 sample.py filename
"""
if len(sys.argv) >= 2:
source = sys.argv[1]
print('"{}"'.format(source))
else:
source = StringIO(PYTHON_SVG)
parser = SVGParser()
tree = parser.parse(source)
root = tree.getroot()
for element in root.iter():
print('node type: {}, node name: \'{}\''.format(
element.node_type, element.node_name))
print('- class:', type(element))
if element.node_type == Node.COMMENT_NODE:
continue
print('- tag: \'{}\', tag name: \'{}\''.format(element.tag,
element.tag_name))
print('- id: {}'.format(
None if element.id is None else '\'{}\''.format(element.id)))
print('- attributes: ' + repr(element.attributes))
if element.local_name == 'svg':
vpx, vpy, vpw, vph = element.get_viewport_size()
print('- viewport: x: {}, y: {}, width: {}, height: {}'.format(
vpx.value(), vpy.value(), vpw.value(), vph.value()))
if isinstance(element, SVGGraphicsElement):
ctm = element.get_ctm()
print('- ctm: {}'.format(ctm.tolist()))
bbox = element.get_bbox()
print('- bbox: x: {}, y: {}, width: {}, height: {}'.format(
bbox.x, bbox.y, bbox.width, bbox.height))
if isinstance(element, SVGGeometryElement):
print('- geometry: {}'.format(element.get_computed_geometry()))
print('- total length: {:g}'.format(element.get_total_length()))
print()
def test_get_css_style01(self):
# 'style' element
# See also: svg/style8.css
parser = SVGParser()
root = parser.create_element('svg')
style = root.create_sub_element('style')
style.text = '@import url(svg/style8.css);'
text = root.create_sub_element('text')
text.id = 'heading'
css_rules = get_css_rules(text)
css_style, css_style_important = get_css_style(text, css_rules)
self.assertEqual('24px',
css_style.get('font-size'),
msg='http server may not be working.')
self.assertEqual('bold', css_style.get('font-weight'))
self.assertEqual(0, len(css_style_important))
css_style = text.get_computed_style()
self.assertEqual(24, css_style.get('font-size'))
self.assertEqual(700, css_style.get('font-weight'))
def test_font_relative_lengths_rem02(self):
# See also: length02.html
base_font_size = 18
element_font_size = 20
Font.default_font_size = base_font_size
parser = SVGParser()
root = parser.create_element('svg')
group = root.create_sub_element('g')
group.attributes.update({
'font-family': 'IPAmjMincho, serif',
'font-size': str(element_font_size),
})
text = group.create_sub_element('text')
text.attributes.update({
'font-size': '1em',
})
a = SVGLength('1rem', context=text)
expected = base_font_size
self.assertAlmostEqual(expected, a.value(), msg=a)
def test_font_relative_lengths_ch01(self):
# See also: length02.html
base_font_size = 18
element_font_size = 20
Font.default_font_size = base_font_size
parser = SVGParser()
root = parser.create_element('svg')
group = root.create_sub_element('g')
group.attributes.update({
'font-family': 'DejaVu Sans, sans-serif',
'font-size': str(element_font_size),
})
text = group.create_sub_element('text')
text.attributes.update({
'font-size': '1em',
})
a = SVGLength('1ch', context=text)
expected = 12.724
self.assertAlmostEqual(expected, a.value(), msg=a, places=places)
def test_get_css_rules_from_svg_document01(self):
# 'link' and 'style' elements
svg = '''
<svg width="5cm" height="4cm" viewBox="0 0 500 400"
xmlns="http://www.w3.org/2000/svg">
<link rel="stylesheet" href="svg/style8.css"/>
<style type="text/css"><![CDATA[
.Border { fill:none; stroke:blue; stroke-width:1 }
.Connect { fill:none; stroke:#888888; stroke-width:2 }
.SamplePath { fill:none; stroke:red; stroke-width:5 }
.EndPoint { fill:none; stroke:#888888; stroke-width:2 }
.CtlPoint { fill:#888888; stroke:none }
.AutoCtlPoint { fill:none; stroke:blue; stroke-width:4 }
.Label { font-size:22; font-family:Verdana }
]]></style>
<style>
@media print { /* rule (1) */
/* hide navigation controls when printing */
#navigation { display: none }
@media (max-width: 12cm) { /* rule (2) */
/* keep notes in flow when printing to narrow pages */
.note { float: none }
}
}
@media screen and (min-width: 35em),
print and (min-width: 40em) {
#section_navigation { float: left; width: 10em; }
}
</style>
<rect class="Border" x="1" y="1" width="498" height="398" id="rect01" />
<polyline class="Connect" points="100,200 100,100" id="polyline01" />
<path class="SamplePath" d="M100,200 C100,100 250,100 250,200
S400,300 400,200" id="path01" />
<circle class="EndPoint" cx="100" cy="200" r="10" id="circle01" />
<text class="Label" x="25" y="70" id="text01">
M100,200 C100,100 250,100 250,200</text>
</svg>
'''
parser = SVGParser()
tree = parser.parse(StringIO(svg))
root = tree.getroot()
style_sheets = get_css_style_sheets_from_svg_document(root)
self.assertEqual(3, len(style_sheets))
# <link rel="stylesheet" href="svg/style8.css"/>
css_style_sheet = style_sheets[0]
self.assertEqual(15, len(css_style_sheet.css_rules))
css_rule = css_style_sheet.css_rules[0]
self.assertEqual(CSSRule.STYLE_RULE, css_rule.type)
self.assertEqual('svg', css_rule.selector_text)
css_rule = css_style_sheet.css_rules[14]
self.assertEqual(CSSRule.STYLE_RULE, css_rule.type)
self.assertEqual('#inner-petals .segment:hover > .segment-edge',
css_rule.selector_text)
# <style type="text/css">...
css_style_sheet = style_sheets[1]
self.assertEqual(7, len(css_style_sheet.css_rules))
css_rule = css_style_sheet.css_rules[0]
self.assertEqual(CSSRule.STYLE_RULE, css_rule.type)
self.assertEqual('.Border', css_rule.selector_text)
css_rule = css_style_sheet.css_rules[6]
self.assertEqual(CSSRule.STYLE_RULE, css_rule.type)
self.assertEqual('.Label', css_rule.selector_text)
# <style> @media at-rule
css_style_sheet = style_sheets[2]
self.assertEqual(2, len(css_style_sheet.css_rules))
# @media 'print'
css_rule = css_style_sheet.css_rules[0]
self.assertEqual(CSSRule.MEDIA_RULE, css_rule.type)
self.assertEqual('print', css_rule.media.media_text)
# child rules
self.assertEqual(2, len(css_rule.css_rules))
# (1) style rule
child_css_rule = css_rule.css_rules[0]
self.assertEqual(CSSRule.STYLE_RULE, child_css_rule.type)
self.assertEqual('#navigation', child_css_rule.selector_text)
# (2) @media at-rule
child_css_rule = css_rule.css_rules[1]
self.assertEqual(CSSRule.MEDIA_RULE, child_css_rule.type)
self.assertEqual('(max-width: 12cm)', child_css_rule.media.media_text)
css_rule = css_style_sheet.css_rules[1]
self.assertEqual(CSSRule.MEDIA_RULE, css_rule.type)
self.assertEqual(
'screen and (min-width: 35em), print and (min-width: 40em)',
css_rule.media.media_text)
def test_convert01(self):
# with context
parser = SVGParser()
root = parser.create_element('svg')
group = root.create_sub_element('g')
group.attributes.update({
'font-family': 'DejaVu Sans, sans-serif',
'font-size': '16',
})
# 1(rem) = 16(px)
text = group.create_sub_element('text')
a = SVGLength('1in', context=text)
self.assertEqual('in', a.unit)
self.assertEqual('1in', a.tostring())
a.convert(SVGLength.TYPE_CM) # 1(in) = 2.54(cm)
self.assertEqual('cm', a.unit)
self.assertEqual('2.54cm', a.tostring())
a.convert(SVGLength.TYPE_PX) # 2.54(cm) = 96(px)
self.assertEqual('px', a.unit)
self.assertEqual('96px', a.tostring())
a.convert(SVGLength.TYPE_NUMBER) # 96(px) = 96
self.assertIsNone(a.unit)
self.assertEqual('96', a.tostring())
a.convert(SVGLength.TYPE_MM) # 96(px) = 25.4(mm)
self.assertEqual('mm', a.unit)
self.assertEqual('25.4mm', a.tostring())
# 100(%) = 16(px)
a.convert(SVGLength.TYPE_PERCENTAGE) # 96(px) = 600(%)
self.assertEqual('%', a.unit)
self.assertEqual('600%', a.tostring())
# 100(%) = 1(em)
a.convert(SVGLength.TYPE_EMS) # 600(%) = 6(em)
self.assertEqual('em', a.unit)
self.assertEqual('6em', a.tostring())
# 1(ex) = x-height(px)
# 96(px) -> x-height: 53(px)
# 96(px) / 53(px) = 1.8113...
a.convert(SVGLength.TYPE_EXS)
self.assertEqual('ex', a.unit)
self.assertEqual('1.811ex', a.tostring())
# font-family: "DejaVu Sans", sans-serif
# element font size: 16(px) -> 1(ex) = 9(px)
# 1.8113(ex) = 1.8113 * 9 = 16.3017...(px)
# 1(px) = 0.75(pt)
# 16.3017 * 0.75 = 12.2263...(pt)
a.convert(SVGLength.TYPE_PT)
self.assertEqual('pt', a.unit)
self.assertEqual('12.226pt', a.tostring())
# 1(pt) = 1 / 12(pc)
# 12.2263(pt) = 1.0189...(pc)
a.convert(SVGLength.TYPE_PC)
self.assertEqual('pc', a.unit)
self.assertEqual('1.019pc', a.tostring())