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Console: internal changes

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This commit is contained in:
Eduardo Silva 2007-06-09 11:01:35 -04:00
parent c9cd87b142
commit 34e8277d15
2 changed files with 136 additions and 143 deletions
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275
services/console/interface/xo/cpu.py
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@ -1,4 +1,4 @@
#!/usr/bin/env python ##!/usr/bin/env python
# Copyright (C) 2007, Eduardo Silva (edsiper@gmail.com). # Copyright (C) 2007, Eduardo Silva (edsiper@gmail.com).
# #
@ -21,33 +21,32 @@ import sys
import gtk import gtk
import string import string
import gobject import gobject
import drwarea
import procmem import procmem
class CPU_Usage: class CPU_Usage:
CPU_HZ = 0 _CPU_HZ = 0
last_jiffies = 0 _last_jiffies = 0
times = 0 _times = 0
def __init__(self): def __init__(self):
self.CPU_hz = os.sysconf(2) self._CPU_HZ = os.sysconf(2)
def _get_CPU_data(self): def _get_CPU_data(self):
# Uptime info # Uptime info
stat_file = "/proc/stat" stat_file = "/proc/stat"
try: try:
infile = file(stat_file, "r") infile = file(stat_file, "r")
except: except:
print "Error trying uptime file" print "Error trying uptime file"
return -1 return -1
stat_line = infile.readline() stat_line = infile.readline()
cpu_info = string.split(stat_line, ' ') cpu_info = string.split(stat_line, ' ')
infile.close() infile.close()
return cpu_info return cpu_info
def _get_CPU_usage(self): def _get_CPU_usage(self):
@ -56,13 +55,13 @@ class CPU_Usage:
used_jiffies = (int(cpu_info[2]) + int(cpu_info[3]) + int(cpu_info[4])) used_jiffies = (int(cpu_info[2]) + int(cpu_info[3]) + int(cpu_info[4]))
if self.times ==0: if self._times ==0:
self.last_jiffies = used_jiffies self._last_jiffies = used_jiffies
self.times +=1 self._times +=1
return True return 0
new_ujiffies = (used_jiffies - self.last_jiffies) new_ujiffies = (used_jiffies - self._last_jiffies)
new_ajiffies = ((self.frequency/1000) * self.CPU_hz) new_ajiffies = ((self.frequency/1000) * self._CPU_HZ)
if new_ajiffies <= 0: if new_ajiffies <= 0:
pcpu = 0.0 pcpu = 0.0
@ -71,186 +70,184 @@ class CPU_Usage:
if pcpu >100: if pcpu >100:
pcpu = 100 pcpu = 100
self.times +=1 self._times +=1
self.last_jiffies = used_jiffies self._last_jiffies = used_jiffies
return pcpu return pcpu
class XO_CPU(gtk.Frame): class XO_CPU(gtk.Frame):
_frequency_timer = 1
context = None
frequency_timer = 1
graph_offset = 7
def __init__(self): def __init__(self):
gtk.Frame.__init__(self, 'System CPU Usage') gtk.Frame.__init__(self, 'System CPU Usage')
self.set_border_width(10) self.set_border_width(10)
self._updated = False self._updated = False
self.drw_width = (gtk.gdk.screen_width() * 99 / 100) - 50 width = (gtk.gdk.screen_width() * 99 / 100) - 50
self.drw_height = (gtk.gdk.screen_height() * 15 / 100) - 20 height = (gtk.gdk.screen_height() * 15 / 100) - 20
self.y_cpu = self.drw_height - self.graph_offset self._graphic = HorizontalGraphic()
self._cpu = 0 self._graphic.set_size_request(width, height)
self._cpu_buffer = [0]
self._drawingarea = gtk.DrawingArea()
self._drawingarea.set_size_request(self.drw_width, self.drw_height)
self._drawingarea.connect("expose-event", self.do_expose)
self.dat = drwarea.Drawing_Area_Tools(self._drawingarea)
fixed = gtk.Fixed() fixed = gtk.Fixed()
fixed.set_border_width(10) fixed.set_border_width(10)
fixed.add(self._drawingarea) fixed.add(self._graphic)
self.add(fixed) self.add(fixed)
self._DRW_CPU = CPU_Usage() self._DRW_CPU = CPU_Usage()
self._DRW_CPU.frequency = 1000 # 1 Second self._DRW_CPU.frequency = 1000 # 1 Second
gobject.timeout_add(self._DRW_CPU.frequency, self._update_cpu_usage) gobject.timeout_add(self._DRW_CPU.frequency, self._update_cpu_usage)
def _update_cpu_usage(self): def _update_cpu_usage(self):
redraw_all = False
# end of the drawing area
if ((self.frequency_timer + 1)*self.graph_offset) >= (self.drw_width - self.graph_offset):
self.frequency_timer = 1
self._cpu_buffer = [self._cpu_buffer[-1]]
redraw_all = True
length = 1
else:
length = len(self._cpu_buffer) - 1
self._cpu = self._DRW_CPU._get_CPU_usage() self._cpu = self._DRW_CPU._get_CPU_usage()
self._cpu_buffer.append(self._cpu)
self._updated = True self._updated = True
if redraw_all: #print "Sending: " + str(self._cpu)
area_x = 0 self.set_label('System CPU Usage: ' + str(self._cpu) + '%')
area_width = self.drw_width self._graphic.draw_value(self._cpu)
else:
area_x = (length*self.graph_offset)
area_width = self.graph_offset*2
self._drawingarea.queue_draw_area(area_x, 0, area_width, self.drw_height - 5)
self.frequency_timer += 1
return True return True
def _get_y_cpu(self, pcpu):
height = (self.dat.range_y['to']) - (self.dat.range_y['from']) class HorizontalGraphic(gtk.DrawingArea):
_MARGIN = 5
# Get percent of cpu usage _LINE_WIDTH = 2
y_value = (height - ((pcpu*height)/100) + 4) _GRAPH_OFFSET = 7
_range_x = []
_range_y = []
_frequency_timer = 0
return int(y_value) def __init__(self):
gtk.DrawingArea.__init__(self)
self.connect('expose-event', self.do_expose)
self.connect('size-allocate', self._change_size_cb)
self._buffer = [0]
def do_expose(self, widget, event): def do_expose(self, widget, event):
context = widget.window.cairo_create() context = widget.window.cairo_create()
context.rectangle(0, 0, self._width - 1, self._height - 1)
context.rectangle(0, 0, self.dat.width - 1, self.dat.height - 1)
context.set_source_rgb (0,0,0) context.set_source_rgb (0,0,0)
context.fill_preserve() context.fill_preserve()
context.set_line_width(self._LINE_WIDTH)
if event.area.x == 0: if event.area.x == 0:
draw_all = True draw_all = True
self._draw_border_lines(context)
context.stroke()
else: else:
draw_all = False draw_all = False
context.rectangle(event.area.x, event.area.y, event.area.width, event.area.height)
context.clip()
context.rectangle(event.area.x, event.area.y, event.area.width, event.area.height)
context.clip()
# Drawing horizontal and vertical border lines
self.dat.draw_border_lines(context)
# Drawing grid
line_margin = self.dat.margin
context.set_source_rgb(1, 1, 1) context.set_source_rgb(1, 1, 1)
context.set_line_width(1)
#self.draw_grid(context, event, line_margin + 1, line_margin + 1, self.dat.width - line_margin - 2, self.dat.height - line_margin - 2)
self._draw_buffer(event, widget, context, draw_all) self._draw_buffer(event, widget, context, draw_all)
context.stroke()
cpu_label = str(round(self._cpu, 4))
self.set_label('System CPU Usage: ' + cpu_label + ' %')
self._updated = False self._updated = False
return False return False
# Draw a grid def draw_value(self, percent):
def draw_grid(self, context, event, init_x, init_y, end_x, end_y): redraw_all = False
x_range = (end_x - init_x) + 5 if (len(self._buffer) + 1) *self._GRAPH_OFFSET >= self._width:
y_range = (end_y - init_y) + 1 redraw_all = True
self._buffer = [self._buffer[-1]]
current_y = init_y length = 1
context.set_line_width(0.3) else:
length = len(self._buffer) - 1
#for y in range(y_range):
for y in range(0, y_range, 20): self._buffer.append(percent)
if (y%20) == 0: self._updated = True
context.move_to(init_x, y)
context.line_to(end_x, y) if redraw_all:
area_x = 0
area_y = 0
height = self._height
width = self._width
else:
area_x = (length*self._GRAPH_OFFSET)
area_y = self._graph_y
width = self._GRAPH_OFFSET * 2
height = self._graph_height
self.queue_draw_area(area_x, area_y, width, height)
self._frequency_timer += 1
return True
def _draw_border_lines(self, context):
context.set_source_rgb(1, 1, 1)
self._draw_line(context, self._MARGIN, self._MARGIN, self._MARGIN, self._height - self._MARGIN)
self._draw_line(context, self._MARGIN, self._height - self._MARGIN - 1, self._width - self._MARGIN, self._height - self._MARGIN - 1)
def _draw_line(self, context, from_x, from_y, to_x, to_y):
#print ""
#print "DRAWING LINE"
#print "from: " + str(from_x) + "," + str(from_y) + "," + str(to_x) + "," + str(to_y)
context.move_to(from_x, from_y)
context.line_to(to_x, to_y)
for x in range(0, x_range, 20):
if (x%20) == 0:
context.move_to(x, init_y)
context.line_to(x, end_y)
context.stroke()
def check_context(self, event, offset, length, freq):
print "CONTEXT ALLOWED - from: " + str(event.area.x) + " to: " + str(event.area.x+event.area.width)
if event.area.x != (freq*self.graph_offset):
print "************************"
print " ERROR DRAWING CONTEXT"
print " ---> Area X: " + str(event.area.x) + " To X: " + str(freq*self.graph_offset)
print "************************"
def _draw_buffer(self, event, drwarea, context, draw_all=True): def _draw_buffer(self, event, drwarea, context, draw_all=True):
buffer_offset = 0 buffer_offset = 0
freq = 1 # Frequency timer freq = 1 # Frequency timer
length = len(self._cpu_buffer) length = len(self._buffer)
if length == 0: if length == 0:
return return
# Context properties # Context properties
context.set_line_width(2) context.set_line_width(self._LINE_WIDTH)
context.set_source_rgb(0,1,0) context.set_source_rgb(0,1,0)
if draw_all == True: if draw_all == True:
buffer_offset = 0 buffer_offset = 0
freq = 0 freq = 0
else: else:
freq = buffer_offset = (event.area.x/self.graph_offset) freq = buffer_offset = (event.area.x/self._GRAPH_OFFSET)
for pcpu in self._cpu_buffer[buffer_offset:length]: for percent in self._buffer[buffer_offset:length]:
if buffer_offset == 0: if buffer_offset == 0:
from_y = self.drw_height - self.graph_offset from_y = self._height - self._GRAPH_OFFSET
from_x = self.graph_offset from_x = self._GRAPH_OFFSET
else: else:
from_y = self._get_y_cpu(self._cpu_buffer[buffer_offset-1]) from_y = self._get_y(self._buffer[buffer_offset-1])
from_x = (freq * self.graph_offset) from_x = (freq * self._GRAPH_OFFSET)
to_x = (freq+1) * self._GRAPH_OFFSET
to_x = (freq+1) * self.graph_offset to_y = self._get_y(percent)
to_y = self._get_y_cpu(pcpu)
self._draw_line(context, from_x, from_y, to_x, to_y)
# Debug context, just for development
#self.check_context(event, buffer_offset, length, freq)
self.dat.draw_line(context, from_x, from_y, to_x, to_y)
buffer_offset+=1 buffer_offset+=1
freq+=1 freq+=1
context.stroke() context.stroke()
def _get_y(self, percent):
y_value = self._GRAPH_OFFSET + (self._graph_height - ((percent*self._graph_height)/100))
return int(y_value)
def _change_size_cb(self, widget, allocation):
self._width = allocation.width
self._height = allocation.height
self._graph_x = self._MARGIN + self._LINE_WIDTH
self._graph_y = self._MARGIN + self._LINE_WIDTH
self._graph_width = self._width - (self._MARGIN + self._LINE_WIDTH)
self._graph_height = self._height - ((self._MARGIN + self._LINE_WIDTH)*2)
# Just for test >:)
#graph = HorizontalGraphic()
#graph.set_size_request(400,200)
"""
window = gtk.Window()
window.set_size_request(500, 250)
window.add(XO_CPU())
window.show_all()
gtk.main()
"""

4
services/console/interface/xo/drwarea.py
View File

@ -39,9 +39,6 @@ class Drawing_Area_Tools:
self.width = drwarea_size[0] self.width = drwarea_size[0]
self.height = drwarea_size[1] self.height = drwarea_size[1]
# print "width %i" % self.width
# print "height %i" % self.height
self.range_x = {'from': self.margin+2, 'to': self.width - (self.margin+2)} self.range_x = {'from': self.margin+2, 'to': self.width - (self.margin+2)}
self.range_y = {'from': self.margin+2, 'to': self.height - (self.margin+2)} self.range_y = {'from': self.margin+2, 'to': self.height - (self.margin+2)}
@ -54,4 +51,3 @@ class Drawing_Area_Tools:
self.draw_line(context, self.margin, self.margin, self.margin, self.height - self.margin) self.draw_line(context, self.margin, self.margin, self.margin, self.height - self.margin)
self.draw_line(context, self.margin, self.height - self.margin - 1, self.width - self.margin, self.height - self.margin - 1) self.draw_line(context, self.margin, self.height - self.margin - 1, self.width - self.margin, self.height - self.margin - 1)
context.stroke() context.stroke()