1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
from pyjamas.chart.HovertextChunk import formatAsHovertext
from pyjamas.chart.GChart import GChart
class CurveNumberHoverParameterInterpreter:
def getHoverParameter(self, paramName, hoveredOver):
# Returning None tells GChart "I don't know how to expand that
# parameter name". The built-in parameters (${x}, ${y}, etc.) won't
# be processed correctly unless you return None for this "no
# matching parameter" case.
result = None
if "curveNumber" == paramName:
# The parent of a point is the curve containing it, and the
# parent of that curve is the GChart itself. So, from the
# single hovered over point ref., we can self.get at any info
# within the GChart we may need to generate our snippets.
result = str(hoveredOver.getParent().getParent().getCurveIndex(
hoveredOver.getParent()))
# add "elif" branches to support more parameter names
print "getHoverParam", paramName, hoveredOver, result
return result
"""*
* Illustrates how to use a <tt>HoverParameterInterpreter</tt> to define
* your own custom parameter names that GChart will then expand when
* included in a hover text template via <tt>setHovertextTemplate</tt>.
* <p>
*
* This example adds a custom parameter called <tt>curveNumber</tt> that
* expands into the index of the curve containing the hovered over
* point.
*
*
"""
class GChartExample17 (GChart):
def __init__(self):
GChart.__init__(self)
self.setChartSize(200, 200)
self.setBorderWidth("0px")
self.setHoverParameterInterpreter(
CurveNumberHoverParameterInterpreter())
template = formatAsHovertext(
"Curve #${curveNumber}:<br>x=${x}, y=${y}")
for iCurve in range(3):
self.addCurve()
self.getCurve().getSymbol().setHovertextTemplate(template)
for iPoint in range(10):
self.getCurve().addPoint(iPoint, (iCurve+1)*iPoint)
|
