/usr/lib/gdesklets/display/TargetPlotter.py is in gdesklets 0.36.1-5+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 | from TargetCanvas import TargetCanvas
from utils.datatypes import *
#
# Class for plotting graphs.
#
class TargetPlotter(TargetCanvas):
def __init__(self, name, parent):
# history of plot values
self.__history = []
# colors
self.__bgcolor = ""
self.__color = "navy"
# scale range, initial value
self.__minscale = 0
self.__maxscale = 100
TargetCanvas.__init__(self, name, parent)
self._register_property("value", TYPE_FLOAT,
self._setp_value, self._getp)
self._register_property("bg-color", TYPE_STRING,
self._setp_bgcolor, self._getp)
self._register_property("color", TYPE_STRING,
self._setp_color, self._getp)
self._register_property("size", TYPE_INT,
self._setp, self._getp)
self._setp("size", 50)
self._register_property("scala", TYPE_INT,
self._setp, self._getp)
self._setp("scala", 0)
self._register_property("scala-color", TYPE_STRING,
self._setp, self._getp)
self._setp("scala-color", "black")
self._register_property("scala-font", TYPE_STRING,
self._setp, self._getp)
self._setp("scala-font", "Sans")
# scale-bidir: not only scale the upper bound, but also the lower one
self._register_property("scale-bidir", TYPE_BOOL,
self._setp, self._getp)
self._setp("scale-bidir", False)
# scale-holdmax: keep the maximum 'all-time' scaling, not only
# max(history)
self._register_property("scale-holdmax", TYPE_BOOL,
self._setp, self._getp)
self._setp("scale-holdmax", False)
self._register_property("bars", TYPE_BOOL,
self._setp, self._getp)
self._setp("bars", False)
#
# Plots the values from the history.
#
def __plot(self):
bg, fg = self.__bgcolor, self.__color
min_value = self.__minscale
max_value = self.__maxscale
size = self.get_prop("size")
x = 0.0
delta_x = 100.0 / (size - 1)
if (bg):
try:
color, opacity = self.__parse_color(bg)
except ValueError, exc:
log(`exc`)
return
body = "<rect x=\"0\" y=\"0\" width=\"100\" height=\"100\" " \
"style=\"stroke:%s;stroke-opacity:%d%%;fill:%s;" \
"fill-opacity:%d%%\"/>" % (color, opacity, color, opacity)
else:
body = ""
if (self.__history):
if ((self.get_prop("scale-holdmax")) == False):
# reset scale range to default:
max_value = 100
min_value = 0
max_value = max(max_value, max(self.__history))
if (self.get_prop("scale-bidir")):
min_value = min(min_value, min(self.__history))
self.__minscale = min_value
self.__maxscale = max_value
scale = 100.0 / (max_value - min_value)
history_size = min(len(self.__history), size)
x, y = x, self.__history[-history_size]
if (self.get_prop("bars")):
body += "<path d=\"M%f %f " % (x, 100 + min_value * scale)
for y in self.__history[-history_size + 1:]:
y = 100 - (y - min_value) * scale
body += "L%(x)f %(y)f " % vars()
x += delta_x
body += "M%f %f " % (x, 100 + min_value * scale)
else:
body += "<path d=\"M%f %f " % (x, 100 - (y - min_value) * scale)
x += delta_x
for y in self.__history[-history_size + 1:]:
y = 100 - (y - min_value) * scale
body += "L%(x)f %(y)f " % vars()
x += delta_x
try:
color, opacity = self.__parse_color(fg)
except ValueError, exc:
log(`exc`)
return
body += "\" style=\"stroke:%s;opacity:%d%%;fill:none\"/>" % \
(color, opacity)
# draw scala
scala = self.get_prop("scala")
if (scala):
scala_color = self.get_prop("scala-color")
scala_font = self.get_prop("scala-font")
for i in range(0, max_value + 1, scala):
body += "<text x=\"0\" y=\"%d\" font-family=\"%s\" " \
"font-size=\"%d\" fill=\"%s\">%d</text>" \
% (max_value - i, scala_font, 5, scala_color, i)
gfx = "<svg>" + body + "</svg>"
self.set_prop("graphics", gfx)
def __parse_color(self, value):
if ("#" in value and len(value) == 9):
opacity = float(int(value[7:], 16) / 255.0) * 100
return (value[:7], opacity)
elif (value.isalnum()):
return (value, 100)
else:
raise ValueError("%s is an invalid color." % `value`)
def _setp_value(self, key, value):
self.__history.append(value)
self.__plot()
if (len(self.__history) > self.get_prop("size")):
self.__history.pop(0)
self._setp(key, value)
def _setp_bgcolor(self, key, value):
self.__bgcolor = value
self.__plot()
self._setp(key, value)
def _setp_color(self, key, value):
self.__color = value
self.__plot()
self._setp(key, value)
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