Console: internal changes
This commit is contained in:
Eduardo Silva
parent
c9cd87b142
commit
34e8277d15
@ -1,4 +1,4 @@
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#!/usr/bin/env python
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##!/usr/bin/env python
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# Copyright (C) 2007, Eduardo Silva (edsiper@gmail.com).
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#
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@ -21,33 +21,32 @@ import sys
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import gtk
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import string
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import gobject
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import drwarea
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import procmem
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class CPU_Usage:
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CPU_HZ = 0
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last_jiffies = 0
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times = 0
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_CPU_HZ = 0
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_last_jiffies = 0
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_times = 0
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def __init__(self):
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self.CPU_hz = os.sysconf(2)
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self._CPU_HZ = os.sysconf(2)
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def _get_CPU_data(self):
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# Uptime info
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stat_file = "/proc/stat"
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try:
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infile = file(stat_file, "r")
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except:
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print "Error trying uptime file"
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return -1
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stat_line = infile.readline()
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cpu_info = string.split(stat_line, ' ')
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infile.close()
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return cpu_info
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def _get_CPU_usage(self):
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@ -56,13 +55,13 @@ class CPU_Usage:
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used_jiffies = (int(cpu_info[2]) + int(cpu_info[3]) + int(cpu_info[4]))
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if self.times ==0:
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self.last_jiffies = used_jiffies
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self.times +=1
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return True
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new_ujiffies = (used_jiffies - self.last_jiffies)
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new_ajiffies = ((self.frequency/1000) * self.CPU_hz)
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if self._times ==0:
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self._last_jiffies = used_jiffies
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self._times +=1
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return 0
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new_ujiffies = (used_jiffies - self._last_jiffies)
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new_ajiffies = ((self.frequency/1000) * self._CPU_HZ)
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if new_ajiffies <= 0:
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pcpu = 0.0
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@ -71,186 +70,184 @@ class CPU_Usage:
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if pcpu >100:
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pcpu = 100
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self.times +=1
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self.last_jiffies = used_jiffies
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self._times +=1
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self._last_jiffies = used_jiffies
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return pcpu
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class XO_CPU(gtk.Frame):
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context = None
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frequency_timer = 1
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graph_offset = 7
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_frequency_timer = 1
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def __init__(self):
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gtk.Frame.__init__(self, 'System CPU Usage')
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self.set_border_width(10)
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self._updated = False
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self.drw_width = (gtk.gdk.screen_width() * 99 / 100) - 50
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self.drw_height = (gtk.gdk.screen_height() * 15 / 100) - 20
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width = (gtk.gdk.screen_width() * 99 / 100) - 50
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height = (gtk.gdk.screen_height() * 15 / 100) - 20
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self.y_cpu = self.drw_height - self.graph_offset
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self._cpu = 0
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self._cpu_buffer = [0]
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self._graphic = HorizontalGraphic()
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self._graphic.set_size_request(width, height)
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self._drawingarea = gtk.DrawingArea()
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self._drawingarea.set_size_request(self.drw_width, self.drw_height)
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self._drawingarea.connect("expose-event", self.do_expose)
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self.dat = drwarea.Drawing_Area_Tools(self._drawingarea)
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fixed = gtk.Fixed()
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fixed.set_border_width(10)
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fixed.add(self._drawingarea)
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fixed.add(self._graphic)
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self.add(fixed)
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self._DRW_CPU = CPU_Usage()
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self._DRW_CPU.frequency = 1000 # 1 Second
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gobject.timeout_add(self._DRW_CPU.frequency, self._update_cpu_usage)
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def _update_cpu_usage(self):
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redraw_all = False
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# end of the drawing area
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if ((self.frequency_timer + 1)*self.graph_offset) >= (self.drw_width - self.graph_offset):
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self.frequency_timer = 1
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self._cpu_buffer = [self._cpu_buffer[-1]]
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redraw_all = True
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length = 1
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else:
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length = len(self._cpu_buffer) - 1
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self._cpu = self._DRW_CPU._get_CPU_usage()
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self._cpu_buffer.append(self._cpu)
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self._updated = True
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if redraw_all:
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area_x = 0
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area_width = self.drw_width
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else:
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area_x = (length*self.graph_offset)
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area_width = self.graph_offset*2
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self._drawingarea.queue_draw_area(area_x, 0, area_width, self.drw_height - 5)
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self.frequency_timer += 1
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#print "Sending: " + str(self._cpu)
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self.set_label('System CPU Usage: ' + str(self._cpu) + '%')
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self._graphic.draw_value(self._cpu)
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return True
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def _get_y_cpu(self, pcpu):
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height = (self.dat.range_y['to']) - (self.dat.range_y['from'])
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# Get percent of cpu usage
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y_value = (height - ((pcpu*height)/100) + 4)
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class HorizontalGraphic(gtk.DrawingArea):
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_MARGIN = 5
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_LINE_WIDTH = 2
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_GRAPH_OFFSET = 7
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_range_x = []
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_range_y = []
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_frequency_timer = 0
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return int(y_value)
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def __init__(self):
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gtk.DrawingArea.__init__(self)
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self.connect('expose-event', self.do_expose)
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self.connect('size-allocate', self._change_size_cb)
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self._buffer = [0]
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def do_expose(self, widget, event):
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context = widget.window.cairo_create()
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context.rectangle(0, 0, self.dat.width - 1, self.dat.height - 1)
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context = widget.window.cairo_create()
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context.rectangle(0, 0, self._width - 1, self._height - 1)
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context.set_source_rgb (0,0,0)
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context.fill_preserve()
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context.set_line_width(self._LINE_WIDTH)
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if event.area.x == 0:
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draw_all = True
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self._draw_border_lines(context)
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context.stroke()
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else:
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draw_all = False
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context.rectangle(event.area.x, event.area.y, event.area.width, event.area.height)
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context.clip()
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context.rectangle(event.area.x, event.area.y, event.area.width, event.area.height)
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context.clip()
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# Drawing horizontal and vertical border lines
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self.dat.draw_border_lines(context)
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# Drawing grid
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line_margin = self.dat.margin
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context.set_source_rgb(1, 1, 1)
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context.set_line_width(1)
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#self.draw_grid(context, event, line_margin + 1, line_margin + 1, self.dat.width - line_margin - 2, self.dat.height - line_margin - 2)
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self._draw_buffer(event, widget, context, draw_all)
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cpu_label = str(round(self._cpu, 4))
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self.set_label('System CPU Usage: ' + cpu_label + ' %')
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context.stroke()
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self._updated = False
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return False
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# Draw a grid
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def draw_grid(self, context, event, init_x, init_y, end_x, end_y):
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x_range = (end_x - init_x) + 5
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y_range = (end_y - init_y) + 1
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current_y = init_y
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context.set_line_width(0.3)
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#for y in range(y_range):
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for y in range(0, y_range, 20):
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if (y%20) == 0:
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context.move_to(init_x, y)
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context.line_to(end_x, y)
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def draw_value(self, percent):
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redraw_all = False
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if (len(self._buffer) + 1) *self._GRAPH_OFFSET >= self._width:
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redraw_all = True
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self._buffer = [self._buffer[-1]]
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length = 1
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else:
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length = len(self._buffer) - 1
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self._buffer.append(percent)
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self._updated = True
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if redraw_all:
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area_x = 0
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area_y = 0
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height = self._height
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width = self._width
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else:
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area_x = (length*self._GRAPH_OFFSET)
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area_y = self._graph_y
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width = self._GRAPH_OFFSET * 2
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height = self._graph_height
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self.queue_draw_area(area_x, area_y, width, height)
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self._frequency_timer += 1
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return True
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def _draw_border_lines(self, context):
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context.set_source_rgb(1, 1, 1)
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self._draw_line(context, self._MARGIN, self._MARGIN, self._MARGIN, self._height - self._MARGIN)
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self._draw_line(context, self._MARGIN, self._height - self._MARGIN - 1, self._width - self._MARGIN, self._height - self._MARGIN - 1)
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def _draw_line(self, context, from_x, from_y, to_x, to_y):
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#print ""
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#print "DRAWING LINE"
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#print "from: " + str(from_x) + "," + str(from_y) + "," + str(to_x) + "," + str(to_y)
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context.move_to(from_x, from_y)
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context.line_to(to_x, to_y)
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for x in range(0, x_range, 20):
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if (x%20) == 0:
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context.move_to(x, init_y)
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context.line_to(x, end_y)
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context.stroke()
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def check_context(self, event, offset, length, freq):
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print "CONTEXT ALLOWED - from: " + str(event.area.x) + " to: " + str(event.area.x+event.area.width)
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if event.area.x != (freq*self.graph_offset):
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print "************************"
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print " ERROR DRAWING CONTEXT"
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print " ---> Area X: " + str(event.area.x) + " To X: " + str(freq*self.graph_offset)
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print "************************"
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def _draw_buffer(self, event, drwarea, context, draw_all=True):
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buffer_offset = 0
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freq = 1 # Frequency timer
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length = len(self._cpu_buffer)
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length = len(self._buffer)
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if length == 0:
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return
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# Context properties
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context.set_line_width(2)
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context.set_line_width(self._LINE_WIDTH)
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context.set_source_rgb(0,1,0)
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if draw_all == True:
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buffer_offset = 0
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freq = 0
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else:
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freq = buffer_offset = (event.area.x/self.graph_offset)
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freq = buffer_offset = (event.area.x/self._GRAPH_OFFSET)
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for pcpu in self._cpu_buffer[buffer_offset:length]:
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for percent in self._buffer[buffer_offset:length]:
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if buffer_offset == 0:
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from_y = self.drw_height - self.graph_offset
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from_x = self.graph_offset
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from_y = self._height - self._GRAPH_OFFSET
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from_x = self._GRAPH_OFFSET
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else:
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from_y = self._get_y_cpu(self._cpu_buffer[buffer_offset-1])
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from_x = (freq * self.graph_offset)
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to_x = (freq+1) * self.graph_offset
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to_y = self._get_y_cpu(pcpu)
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# Debug context, just for development
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#self.check_context(event, buffer_offset, length, freq)
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self.dat.draw_line(context, from_x, from_y, to_x, to_y)
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from_y = self._get_y(self._buffer[buffer_offset-1])
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from_x = (freq * self._GRAPH_OFFSET)
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to_x = (freq+1) * self._GRAPH_OFFSET
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to_y = self._get_y(percent)
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self._draw_line(context, from_x, from_y, to_x, to_y)
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buffer_offset+=1
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freq+=1
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context.stroke()
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def _get_y(self, percent):
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y_value = self._GRAPH_OFFSET + (self._graph_height - ((percent*self._graph_height)/100))
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return int(y_value)
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def _change_size_cb(self, widget, allocation):
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self._width = allocation.width
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self._height = allocation.height
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self._graph_x = self._MARGIN + self._LINE_WIDTH
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self._graph_y = self._MARGIN + self._LINE_WIDTH
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self._graph_width = self._width - (self._MARGIN + self._LINE_WIDTH)
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self._graph_height = self._height - ((self._MARGIN + self._LINE_WIDTH)*2)
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# Just for test >:)
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#graph = HorizontalGraphic()
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#graph.set_size_request(400,200)
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"""
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window = gtk.Window()
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window.set_size_request(500, 250)
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window.add(XO_CPU())
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window.show_all()
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gtk.main()
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"""
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@ -39,9 +39,6 @@ class Drawing_Area_Tools:
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self.width = drwarea_size[0]
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self.height = drwarea_size[1]
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# print "width %i" % self.width
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# print "height %i" % self.height
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self.range_x = {'from': self.margin+2, 'to': self.width - (self.margin+2)}
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self.range_y = {'from': self.margin+2, 'to': self.height - (self.margin+2)}
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@ -54,4 +51,3 @@ class Drawing_Area_Tools:
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self.draw_line(context, self.margin, self.margin, self.margin, self.height - self.margin)
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self.draw_line(context, self.margin, self.height - self.margin - 1, self.width - self.margin, self.height - self.margin - 1)
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context.stroke()
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