Viewing file:  Representation.py (4.3 KB) -rw-r--r--
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"""This file contains the Representation class."""
import gtk
import Const
class Representation:
"""This class maps a device to presentation texts and icons used in
the GUI"""
def load_and_scale_icon(self, path):
"""Helper function for loading an icon and scaling it to 16x16"""
orig = gtk.gdk.pixbuf_new_from_file(path)
icon = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, True, 8, 16, 16)
orig.scale(icon, 0, 0, 16, 16,
0, 0,
16.0/orig.get_width(),
16.0/orig.get_height(),
gtk.gdk.INTERP_HYPER)
return icon
def __init__(self):
"""Init the class and load neccessary resources."""
self.icons = {}
self.icons["computer"] = self.load_and_scale_icon(Const.DATADIR + "/hal-computer.png")
self.icons["bus_pci"] = self.load_and_scale_icon(Const.DATADIR + "/hal-bus-pci.png")
self.icons["bus_usb"] = self.load_and_scale_icon(Const.DATADIR + "/hal-bus-usb.png")
self.icons["abstract"] = self.load_and_scale_icon(Const.DATADIR + "/hal-abstract.png");
self.icons["harddisk"] = self.load_and_scale_icon(Const.DATADIR + "/hal-harddisk.png");
self.icons["cdrom"] = self.load_and_scale_icon(Const.DATADIR + "/hal-cdrom.png");
self.icons["floppy"] = self.load_and_scale_icon(Const.DATADIR + "/hal-floppy.png");
self.icons["unknown"] = self.load_and_scale_icon(Const.DATADIR + "/hal-unknown.png")
self.icons["mouse"] = self.load_and_scale_icon(Const.DATADIR + "/hal-cat-mouse.png")
self.icons["keyboard"] = self.load_and_scale_icon(Const.DATADIR + "/hal-cat-keyboard.png")
self.icons["cardbus"] = self.load_and_scale_icon(Const.DATADIR + "/hal-cat-cardbus.png")
self.icons["video"] = self.load_and_scale_icon(Const.DATADIR + "/hal-video.png")
self.icons["flash"] = self.load_and_scale_icon(Const.DATADIR + "/hal-flash.png")
self.icons["network"] = self.load_and_scale_icon(Const.DATADIR + "/hal-network.png")
self.icons["audio"] = self.load_and_scale_icon(Const.DATADIR + "/hal-audio.png")
self.icons["camera"] = self.load_and_scale_icon(Const.DATADIR + "/hal-camera.png")
self.icons["serial"] = self.load_and_scale_icon(Const.DATADIR + "/hal-serial-port.png")
def get_icon(self, device):
"""Given a Device object return an icon to display"""
# Default to abstract icon
icon = self.icons["abstract"]
try:
product = device.properties["info.product"]
except KeyError:
product = "Unknown"
except TypeError:
return icon
if product=="Computer":
return self.icons["computer"]
# First look at bus type, every device got Bus property
if device.properties.has_key("info.bus"):
bus = device.properties["info.bus"]
if bus=="usb_device":
icon = self.icons["bus_usb"]
elif bus=="pci":
icon = self.icons["bus_pci"]
else:
bus = "unknown"
# Then look at Category, if available
if not device.properties.has_key("info.category"):
return icon
cat = device.properties["info.category"]
if cat=="input.mouse":
icon = self.icons["mouse"]
elif cat=="input.keyboard":
icon = self.icons["keyboard"]
elif cat=="pcmcia_socket":
icon = self.icons["cardbus"]
elif cat=="video4linux":
icon = self.icons["video"]
elif cat=="dvb":
icon = self.icons["video"]
elif cat=="camera":
icon = self.icons["camera"]
elif cat=="storage" or cat=="storage.removable":
if device.properties.has_key("storage.media"):
media = device.properties["storage.media"]
if media=="cdrom":
icon = self.icons["cdrom"]
elif media=="floppy":
icon = self.icons["floppy"]
elif media=="disk":
icon = self.icons["harddisk"]
elif media=="flash":
icon = self.icons["flash"]
elif cat=="net":
icon = self.icons["network"]
elif cat=="multimedia.audio":
icon = self.icons["audio"]
elif cat=="serial":
icon = self.icons["serial"]
return icon
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