/usr/lib/python2.7/dist-packages/tryton/gui/window/view_form/view/graph_gtk/pie.py is in tryton-client 3.4.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#this repository contains the full copyright notices and license terms.
#This code is inspired by the pycha project
#(http://www.lorenzogil.com/projects/pycha/)
from graph import Graph, Area
import math
import cairo
from tryton.common import hex2rgb, float_time_to_text
import locale
import tryton.rpc as rpc
class Pie(Graph):
def _getDatasKeys(self):
return self.datas.keys()
def drawLegend(self, cr, width, height):
pass
def drawAxis(self, cr, width, height):
cr.set_source_rgb(*hex2rgb('#000000'))
for slice in self.slices:
normalisedAngle = slice.normalisedAngle()
labelx = self.centerx + \
math.sin(normalisedAngle) * (self.radius + 10)
labely = self.centery - \
math.cos(normalisedAngle) * (self.radius + 10)
label = '%s (%s%%)' % (self.labels[slice.xname],
locale.format('%.2f', slice.fraction * 100))
extents = cr.text_extents(label)
labelWidth = extents[2]
labelHeight = extents[3]
x = y = 0
if normalisedAngle <= math.pi * 0.5:
x = labelx
y = labely - labelHeight
elif math.pi / 2 < normalisedAngle <= math.pi:
x = labelx
y = labely
elif math.pi < normalisedAngle <= math.pi * 1.5:
x = labelx - labelWidth
y = labely
else:
x = labelx - labelWidth
y = labely - labelHeight
cr.move_to(x, y)
cr.show_text(label)
def drawLines(self, cr, width, height):
pass
def updateArea(self, cr, width, height):
width = width - self.leftPadding - self.rightPadding
height = height - self.topPadding - self.bottomPadding
self.area = Area(self.leftPadding, self.topPadding, width, height)
self.centerx = self.area.x + self.area.w * 0.5
self.centery = self.area.y + self.area.h * 0.5
self.radius = min(self.area.w * 0.4, self.area.h * 0.4)
def updateGraph(self):
self.sum = 0.0
for xkey in self.datas.iterkeys():
key = self.yfields[0].get('key', self.yfields[0]['name'])
if self.datas[xkey][key] > 0:
self.sum += self.datas[xkey][key]
fraction = angle = 0.0
self.slices = []
for xkey in self.datas.iterkeys():
key = self.yfields[0].get('key', self.yfields[0]['name'])
value = self.datas[xkey][key]
if value > 0:
angle += fraction
fraction = value / self.sum
slice = Slice(xkey, fraction, value, angle)
self.slices.append(slice)
def drawGraph(self, cr, width, height):
cr.set_line_join(cairo.LINE_JOIN_ROUND)
cr.save()
for slice in self.slices:
if slice.isBigEnough():
if bool(int(self.yfields[0].get('fill', 1))):
color = self.colorScheme[slice.xname]
if slice.highlight:
color = self.colorScheme['__highlight']
cr.set_source_rgba(*color)
slice.draw(cr, self.centerx, self.centery, self.radius)
cr.fill()
cr.set_source_rgb(*hex2rgb(
self.attrs.get('background', '#f5f5f5')))
slice.draw(cr, self.centerx, self.centery, self.radius)
cr.set_line_width(2)
cr.stroke()
cr.restore()
def motion(self, widget, event):
super(Pie, self).motion(widget, event)
if not getattr(self, 'area', None):
return
d = (event.x - self.centerx) ** 2 + (event.y - self.centery) ** 2
if d > self.radius ** 2:
self.popup.hide()
for slice in self.slices:
if slice.highlight:
self.queue_draw()
slice.highlight = False
return
self.popup.show()
if event.y == self.centery:
angle = math.pi / 2
else:
angle = math.atan((event.x - self.centerx)
/ (self.centery - event.y))
if event.x >= self.centerx:
if event.y <= self.centery:
pass
else:
angle += math.pi
else:
if event.y < self.centery:
angle += 2 * math.pi
else:
angle += math.pi
for slice in self.slices:
if slice.startAngle <= angle <= slice.endAngle:
if not slice.highlight:
slice.highlight = True
if self.yfields[0].get('widget') == 'float_time':
conv = None
if self.yfields[0].get('float_time'):
conv = rpc.CONTEXT.get(
self.yfields[0]['float_time'])
value = float_time_to_text(slice.fraction * self.sum,
conv)
sum = float_time_to_text(self.sum, conv)
else:
value = locale.format('%.2f',
slice.fraction * self.sum)
sum = locale.format('%.2f', self.sum)
label = '%s (%s%%)\n%s/%s' % (self.labels[slice.xname],
locale.format('%.2f', slice.fraction * 100),
value, sum)
self.popup.set_text(label)
self.queue_draw()
else:
if slice.highlight:
slice.highlight = False
self.queue_draw()
def action(self):
super(Pie, self).action()
for slice in self.slices:
if slice.highlight:
ids = self.ids[slice.xname]
self.action_keyword(ids)
class Slice(object):
def __init__(self, xname, fraction, value, angle):
self.xname = xname
self.fraction = fraction
self.value = value
self.startAngle = 2 * angle * math.pi
self.endAngle = 2 * (angle + fraction) * math.pi
self.highlight = False
def isBigEnough(self):
return abs(self.startAngle - self.endAngle) > 0.001
def draw(self, cr, centerx, centery, radius):
cr.new_path()
cr.move_to(centerx, centery)
cr.arc(centerx, centery, radius,
self.startAngle - (math.pi / 2),
self.endAngle - (math.pi / 2))
cr.line_to(centerx, centery)
cr.close_path()
def normalisedAngle(self):
normalisedAngle = (self.startAngle + self.endAngle) / 2
if normalisedAngle > 2 * math.pi:
normalisedAngle -= 2 * math.pi
elif normalisedAngle < 0:
normalisedAngle += 2 * math.pi
return normalisedAngle
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