def test_unicodeTagName(self):
"""
A L{Tag} with a C{tagName} attribute which is C{unicode} instead of
C{str} is flattened to an XML representation.
"""
self.assertStringEqual(self.flatten(Tag(u'div')), "<div></div>")
self.assertStringEqual(self.flatten(Tag(u'div')['']), "<div></div>")
def render_tics(self, ctx, data):
elts = []
elts.extend([
Tag("line")(x1=25, y1=15, x2=25, y2=240),
Tag("line")(x1=25, y1=240, x2=840, y2=240)
])
x = floatOrLiteral(self.xrange[0])
lastPxTic = -100
while x <= floatOrLiteral(self.xrange[1]):
px, py = self.trans((x, self.yrange[0]))
if px > lastPxTic + 30:
lastPxTic = px
try:
xfmt = "%.1f" % x
except TypeError:
xfmt = str(x)
elts.append(
Tag("text")
(x=px,
y=240 + 4,
style=
"text-anchor:middle;dominant-baseline:text-before-edge;font-size:7pt;font-family:helvetica;"
)[Tag("tspan")[xfmt]])
elts.append(Tag("line")(x1=px, y1=240, x2=px, y2=240 + 3))
dx = self.xwidth() / 30
if isinstance(x, (datetime.date, datetime.datetime)):
dx = datetime.datetime.fromtimestamp(
dx) - datetime.datetime.fromtimestamp(0)
oldx = x
x = x + dx
if x == oldx:
raise ValueError("x is stuck at %r, dx=%r" % (x, dx))
y = self.yrange[0]
while y <= self.yrange[1]:
px, py = self.trans((self.xrange[0], y))
elts.append(Tag("line")(x1=25 - 4, y1=py, x2=25, y2=py))
elts.append(
Tag("text")
(x=25 - 4,
y=py,
style=
"text-anchor:end;dominant-baseline:middle;font-size:7pt;font-family:helvetica;"
)[Tag("tspan")["%.1f" % y]])
y += .2 / (self.yrange[1] - self.yrange[0])
for pt in self.pts:
px, py = self.trans(pt)
elts.append(
Tag("line")(style="stroke-width:.1",
x1=px,
y1=240,
x2=px,
y2=py))
return elts
def test_unicodeAttributeName(self):
"""
A L{Tag} with an attribute name which is C{unicode} instead of C{str}
is flattened to an XML representation.
"""
self.assertStringEqual(self.flatten(Tag(u'div', {u'foo': 'bar'})),
'<div foo="bar"></div>')
def test_invisibleTag(self):
"""
L{Tag} instances with an empty C{tagName} attribute don't have markup
generated for them, only for their children.
"""
self.assertStringEqual(self.flatten(invisible["foo"]), "foo")
self.assertStringEqual(self.flatten(Tag("")["foo"]), "foo")
class MainPage(rend.Page):
docFactory = loaders.stan(T.html[
T.body[T.p["svg linegraph demo"],
Tag("embed")
(src="graph", type="image/svg+xml", width=850, height=260)]])
addSlash = True
def child_graph(self, ctx):
return LineGraph([(x, math.sin(x)) for x in range(0, 50)])
def test_tagWithoutLocation(self):
"""
If a L{FlattenerError} is created with a L{Tag} instance without source
location information, only the tagName is included in the string
representation of the exception.
"""
self.assertEqual(
str(FlattenerError(RuntimeError("reason"), [Tag('span')], [])),
"Exception while flattening:\n"
" Tag <span>\n"
"RuntimeError: reason\n")
def render_line(self, ctx, data):
d = ""
for pt in self.pts:
if pt is self.pts[0]:
d += "M "
elif pt is self.pts[1]:
d += "L "
d += "%s %s " % self.trans(pt)
return Tag("path")(stroke="black",
fill="none",
style="marker-mid:url(#Dot);",
d=d)
def test_tag(self):
"""
If a L{FlattenerError} is created with a L{Tag} instance with source
location information, the source location is included in the string
representation of the exception.
"""
tag = Tag(
'div', filename='/foo/filename.xhtml', lineNumber=17, columnNumber=12)
self.assertEqual(
str(FlattenerError(RuntimeError("reason"), [tag], [])),
"Exception while flattening:\n"
" File \"/foo/filename.xhtml\", line 17, column 12, in \"div\"\n"
"RuntimeError: reason\n")
class LineGraph(rend.Page):
"""pts are (x,y), where x could be date like '2006-01-02'"""
def __init__(self, pts):
self.pts = pts
self.xrange = min(pts)[0], max(pts)[0]
ys = [p[1] for p in pts]
self.yrange = rangeWithoutOutliers(ys)
def beforeRender(self, ctx):
inevow.IRequest(ctx).setHeader("Content-Type",
"image/svg+xml; charset=UTF-8")
def xfloat(self, x):
if isinstance(x, Literal):
x = getLiteralValue(x)
if isinstance(x, (datetime.date, datetime.datetime)):
return float(x.strftime("%s"))
return x
def xwidth(self):
"""as float, uses seconds for days"""
return self.xfloat(self.xrange[1]) - self.xfloat(self.xrange[0])
def trans(self, pt):
xfrac = (self.xfloat(pt[0]) -
self.xfloat(self.xrange[0])) / self.xwidth()
return (25 + 835 * xfrac, 240 - 240 * (pt[1] - self.yrange[0]) /
(self.yrange[1] - self.yrange[0]))
def render_tics(self, ctx, data):
elts = []
elts.extend([
Tag("line")(x1=25, y1=15, x2=25, y2=240),
Tag("line")(x1=25, y1=240, x2=840, y2=240)
])
x = floatOrLiteral(self.xrange[0])
lastPxTic = -100
while x <= floatOrLiteral(self.xrange[1]):
px, py = self.trans((x, self.yrange[0]))
if px > lastPxTic + 30:
lastPxTic = px
try:
xfmt = "%.1f" % x
except TypeError:
xfmt = str(x)
elts.append(
Tag("text")
(x=px,
y=240 + 4,
style=
"text-anchor:middle;dominant-baseline:text-before-edge;font-size:7pt;font-family:helvetica;"
)[Tag("tspan")[xfmt]])
elts.append(Tag("line")(x1=px, y1=240, x2=px, y2=240 + 3))
dx = self.xwidth() / 30
if isinstance(x, (datetime.date, datetime.datetime)):
dx = datetime.datetime.fromtimestamp(
dx) - datetime.datetime.fromtimestamp(0)
oldx = x
x = x + dx
if x == oldx:
raise ValueError("x is stuck at %r, dx=%r" % (x, dx))
y = self.yrange[0]
while y <= self.yrange[1]:
px, py = self.trans((self.xrange[0], y))
elts.append(Tag("line")(x1=25 - 4, y1=py, x2=25, y2=py))
elts.append(
Tag("text")
(x=25 - 4,
y=py,
style=
"text-anchor:end;dominant-baseline:middle;font-size:7pt;font-family:helvetica;"
)[Tag("tspan")["%.1f" % y]])
y += .2 / (self.yrange[1] - self.yrange[0])
for pt in self.pts:
px, py = self.trans(pt)
elts.append(
Tag("line")(style="stroke-width:.1",
x1=px,
y1=240,
x2=px,
y2=py))
return elts
def render_line(self, ctx, data):
d = ""
for pt in self.pts:
if pt is self.pts[0]:
d += "M "
elif pt is self.pts[1]:
d += "L "
d += "%s %s " % self.trans(pt)
return Tag("path")(stroke="black",
fill="none",
style="marker-mid:url(#Dot);",
d=d)
docFactory = loaders.stan(
Tag("svg")(
xmlns="http://www.w3.org/2000/svg",
width=850,
height=260,
style="stroke-width:1px",
stroke="black")[Tag("defs")[Tag("marker")(
id="Dot",
viewBox="0 0 10 10",
refX=5,
refY=5,
markerWidth=5,
markerHeight=5,
orient="auto")[Tag("circle")(fill="red", cx=5, cy=5, r=4)]],
Tag("g")(transform="")[render_line,
render_tics, ]])