Console: new graphics package

configure.ac

@@ -57,6 +57,7 @@ shell/model/Makefile
 shell/model/devices/Makefile
 shell/model/devices/network/Makefile
 services/console/lib/Makefile
+services/console/lib/graphics/Makefile
 services/console/lib/procmem/Makefile
 services/console/Makefile
 services/console/interface/Makefile

services/console/interface/xo/battery.py

@@ -20,6 +20,7 @@ import gtk
 import gobject
 
 from label import Label
+from graphics.box import BoxGraphic
 
 class XO_Battery(gtk.Fixed):
 
@@ -31,13 +32,13 @@ class XO_Battery(gtk.Fixed):
                 
         self._battery_charge = self._get_battery_status()
 
-        self._battery_drw = gtk.DrawingArea()
+        self._battery_box = BoxGraphic()
-        self._battery_drw.set_size_request(70, 150)
+        self._battery_box.set_size_request(70, 150)
-        self._battery_drw.connect("expose-event", self.do_expose)
+        self._battery_box.set_capacity(self._battery_charge)
 
         fixed = gtk.Fixed();
         fixed.set_border_width(10)
-        fixed.add(self._battery_drw)
+        fixed.add(self._battery_box)
 
         hbox = gtk.HBox(False, 0)
         hbox.pack_start(fixed, False, False, 4)
@@ -85,22 +86,10 @@ class XO_Battery(gtk.Fixed):
         if new_charge != self._battery_charge:
             self._battery_charge = self._get_battery_status()
             self.label_charge_value.set_text(str(self._battery_charge) + '%')
-            self._battery_drw.queue_draw()
+            self._battery_box.set_capacity(self._battery_charge)
 
         return True
 
-    def do_expose(self, widget, event):
-        context = widget.window.cairo_create()
-        
-        [width, height] = widget.size_request()
-        context.rectangle(0, 0, width, height)
-
-        context.set_source_rgb (0,0,0)
-        context.fill_preserve()
-        context.stroke()
-        
-        self._draw_battery_usage(context, width, height)
-
     def _get_battery_status(self):
         battery_class_path = '/sys/class/battery/psu_0/'
         capacity_path = battery_class_path + 'capacity_percentage'
@@ -113,20 +102,3 @@ class XO_Battery(gtk.Fixed):
             capacity = 0
 
         return capacity
-        
-    def _draw_battery_usage(self, context, width, height):
-        
-        usage_height = (self._battery_charge*height)/100
-
-        context.rectangle(0, height - usage_height, width, height)
-        
-        if self._battery_charge > 50:
-            context.set_source_rgb (0,1,0)
-        
-        if self._battery_charge > 10 and self._battery_charge <= 50:
-            context.set_source_rgb (1,1,0)
-            
-        if self._battery_charge <= 10:
-            context.set_source_rgb (1,0,0)
-
-        context.fill_preserve()

services/console/interface/xo/cpu.py

@@ -21,9 +21,11 @@ import sys
 import gtk
 import string
 import gobject
-
+import cairo
 import procmem
 
+from graphics.frequency import HorizontalGraphic
+
 class CPU_Usage:
     
     _CPU_HZ = 0
@@ -87,6 +89,7 @@ class XO_CPU(gtk.Frame):
         width = (gtk.gdk.screen_width() * 99 / 100) - 50
         height = (gtk.gdk.screen_height() * 15 / 100) - 20
 
+        # Create graphic
         self._graphic = HorizontalGraphic()
         self._graphic.set_size_request(width, height)
 
@@ -105,149 +108,7 @@ class XO_CPU(gtk.Frame):
         self._cpu = self._DRW_CPU._get_CPU_usage()
         self._updated = True
 
-        #print "Sending: " + str(self._cpu)
         self.set_label('System CPU Usage: ' + str(self._cpu) + '%')
+        # Draw the value into the graphic
         self._graphic.draw_value(self._cpu)
         return True
-
-class HorizontalGraphic(gtk.DrawingArea):
-    _MARGIN = 5
-    _LINE_WIDTH = 2
-    _GRAPH_OFFSET = 7
-    _range_x = []
-    _range_y = []
-    _frequency_timer = 0
-
-    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):
-        context = widget.window.cairo_create()
-        context.rectangle(0, 0, self._width - 1, self._height - 1)
-        context.set_source_rgb (0,0,0)
-        context.fill_preserve()
-        context.set_line_width(self._LINE_WIDTH)
-
-        if event.area.x == 0:
-            draw_all = True
-
-            self._draw_border_lines(context)
-            context.stroke()            
-        else:
-            draw_all = False
-            context.rectangle(event.area.x, event.area.y, event.area.width, event.area.height)
-            context.clip()
-
-        context.set_source_rgb(1, 1, 1)
-        self._draw_buffer(event, widget, context, draw_all)
-        context.stroke()
-
-        self._updated = False
-        return False
-
-    def draw_value(self, percent):
-        redraw_all = False
-
-        if (len(self._buffer) + 1) *self._GRAPH_OFFSET >= self._width:
-            redraw_all = True
-            self._buffer = [self._buffer[-1]]
-            length = 1
-        else:
-            length = len(self._buffer) - 1
-
-        self._buffer.append(percent)
-        self._updated = True
-
-        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)         
-
-    def _draw_buffer(self, event, drwarea, context, draw_all=True):
-        buffer_offset = 0
-        freq = 1 # Frequency timer
-
-        length = len(self._buffer)
-        
-        if length == 0:
-            return
-
-        # Context properties
-        context.set_line_width(self._LINE_WIDTH)
-        context.set_source_rgb(0,1,0)
-
-        if draw_all == True:
-            buffer_offset = 0
-            freq = 0
-        else:
-            freq = buffer_offset = (event.area.x/self._GRAPH_OFFSET)
-
-        for percent in self._buffer[buffer_offset:length]:
-            if buffer_offset == 0:
-                from_y = self._height - self._GRAPH_OFFSET
-                from_x = self._GRAPH_OFFSET
-            else:
-                from_y = self._get_y(self._buffer[buffer_offset-1])
-                from_x = (freq * self._GRAPH_OFFSET)
-
-            to_x = (freq+1) * self._GRAPH_OFFSET
-            to_y = self._get_y(percent)
-
-            self._draw_line(context, from_x, from_y, to_x, to_y)
-            buffer_offset+=1
-            freq+=1
-
-        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()
-"""

services/console/interface/xo/drwarea.py

@@ -1,53 +0,0 @@
-#!/usr/bin/env python
-
-# Copyright (C) 2007, Eduardo Silva (edsiper@gmail.com).
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
-
-#############################################
-# Drawing area tools
-#############################################
-
-import gtk
-import gtk.gdk
-
-class Drawing_Area_Tools:
-    
-    height	= 0 
-    width	= 0
-
-    margin = 5 # Left and bottom margin
-
-    range_x = []
-    range_y = []
-    
-    def __init__(self, drwarea):
-        drwarea_size = drwarea.get_size_request()
-
-        self.width	= drwarea_size[0]
-        self.height	= drwarea_size[1]
-
-        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)}
-                
-    def draw_line(self, context, from_x, from_y, to_x, to_y):				
-        context.move_to(from_x, from_y)
-        context.line_to(to_x, to_y)			
-            
-    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)
-        context.stroke()

services/console/lib/Makefile.am

@@ -1,4 +1,4 @@
-SUBDIRS = procmem
+SUBDIRS = procmem graphics
 
 sugardir = $(pkgdatadir)/shell/console/lib
 sugar_PYTHON =				

services/console/lib/graphics/Makefile.am

@@ -0,0 +1,7 @@
+
+sugardir = $(pkgdatadir)/services/console/lib/graphics
+
+sugar_PYTHON =				\
+	__init__.py			\
+	box.py				\
+	frequency.py			

services/console/lib/graphics/box.py

@@ -0,0 +1,63 @@
+##!/usr/bin/env python
+
+# Copyright (C) 2007, Eduardo Silva (edsiper@gmail.com).
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+import gtk
+import cairo
+
+class BoxGraphic(gtk.DrawingArea):
+    def __init__(self):
+        gtk.DrawingArea.__init__(self)
+        self.connect("expose-event", self.do_expose)
+        self.connect('size-allocate', self._change_size_cb)
+        self.set_capacity(0)
+
+    def do_expose(self, widget, event):
+        context = widget.window.cairo_create()
+        context.rectangle(0, 0, self._width, self._height)
+
+        context.set_source_rgb (0,0,0)
+        context.fill_preserve()
+        context.stroke()
+        
+        print self._percent
+        self._draw_content(context, self._percent)
+
+    def set_capacity(self, percent):
+        self._percent = percent
+        self.queue_draw()
+
+    def _draw_content(self, context, percent):
+        usage_height = (percent*self._height)/100
+
+        context.rectangle(0, self._height - usage_height, self._width, self._height)
+
+        if self._percent > 50:
+            context.set_source_rgb (0,1,0)
+
+        if self._percent > 10 and self._percent <= 50:
+            context.set_source_rgb (1,1,0)
+
+        if self._percent <= 10:
+            context.set_source_rgb (1,0,0)
+
+        context.fill_preserve()
+
+    def _change_size_cb(self, widget, allocation):
+        self._width = allocation.width
+        self._height = allocation.height
+        self.queue_draw()

services/console/lib/graphics/frequency.py

@@ -0,0 +1,144 @@
+##!/usr/bin/env python
+
+# Copyright (C) 2007, Eduardo Silva (edsiper@gmail.com).
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+import gtk
+
+class HorizontalGraphic(gtk.DrawingArea):
+    _MARGIN = 5
+    _LINE_WIDTH = 2
+    _GRAPH_OFFSET = 7
+    _range_x = []
+    _range_y = []
+    _frequency_timer = 0
+
+    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):
+        context = widget.window.cairo_create()
+        context.rectangle(0, 0, self._width - 1, self._height - 1)
+        context.set_source_rgb (0,0,0)
+        context.fill_preserve()
+        context.set_line_width(self._LINE_WIDTH)
+
+        if event.area.x == 0:
+            draw_all = True
+
+            self._draw_border_lines(context)
+            context.stroke()            
+        else:
+            draw_all = False
+            context.rectangle(event.area.x, event.area.y, event.area.width, event.area.height)
+            context.clip()
+
+        context.set_source_rgb(1, 1, 1)
+        self._draw_buffer(event, widget, context, draw_all)
+        context.stroke()
+
+        self._updated = False
+        return False
+
+    def draw_value(self, percent):
+        redraw_all = False
+
+        if (len(self._buffer) + 1) *self._GRAPH_OFFSET >= self._width:
+            redraw_all = True
+            self._buffer = [self._buffer[-1]]
+            length = 1
+        else:
+            length = len(self._buffer) - 1
+
+        self._buffer.append(percent)
+        self._updated = True
+
+        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):               
+        context.move_to(from_x, from_y)
+        context.line_to(to_x, to_y)         
+
+    def _draw_buffer(self, event, drwarea, context, draw_all=True):
+        buffer_offset = 0
+        freq = 1 # Frequency timer
+
+        length = len(self._buffer)
+        
+        if length == 0:
+            return
+
+        # Context properties
+        context.set_line_width(self._LINE_WIDTH)
+        context.set_source_rgb(0,1,0)
+
+        if draw_all == True:
+            buffer_offset = 0
+            freq = 0
+        else:
+            freq = buffer_offset = (event.area.x/self._GRAPH_OFFSET)
+
+        for percent in self._buffer[buffer_offset:length]:
+            if buffer_offset == 0:
+                from_y = self._height - self._GRAPH_OFFSET
+                from_x = self._GRAPH_OFFSET
+            else:
+                from_y = self._get_y(self._buffer[buffer_offset-1])
+                from_x = (freq * self._GRAPH_OFFSET)
+
+            to_x = (freq+1) * self._GRAPH_OFFSET
+            to_y = self._get_y(percent)
+
+            self._draw_line(context, from_x, from_y, to_x, to_y)
+            buffer_offset+=1
+            freq+=1
+
+        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)