/[ascend]/trunk/pygtk/loading.py
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Contents of /trunk/pygtk/loading.py

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Revision 1443 - (show annotations) (download) (as text)
Sat May 26 09:00:53 2007 UTC (17 years, 1 month ago) by jpye
File MIME type: text/x-python
File size: 2663 byte(s)
Fixed problems with installation of documentation on FC6
1 import sys
2 import config
3 import os.path
4
5 try:
6 import pygtk
7 pygtk.require('2.0')
8 import gtk
9 is_loading = True
10 except:
11 print "PyGTK COULD NOT BE LOADED (is it installed? do you have X-Windows running?)"
12 is_loading = False
13
14 _messages = []
15
16 def get_messages():
17 return _messages
18
19 def print_status(status,msg=None):
20 if is_loading:
21 print status
22 loadinglabel.set_text(status)
23 if msg is not None:
24 sys.stderr.write(msg+"\n")
25 _messages.append(msg)
26 while gtk.events_pending():
27 gtk.main_iteration(False)
28 else:
29 sys.stderr.write("\r \r")
30 if msg!=None:
31 sys.stderr.write(msg+"\n")
32 _messages.append(msg)
33 sys.stderr.write(status+"...\r")
34 sys.stderr.flush()
35
36 def complete():
37 loadingwindow.destroy()
38 _is_loading = False
39
40 def load_matplotlib(throw=False):
41 print_status("Loading python matplotlib")
42 try:
43 import matplotlib
44 matplotlib.use('GTKAgg')
45
46 try:
47 print_status("Trying python numpy")
48 import numpy
49 matplotlib.rcParams['numerix'] = 'numpy'
50 print_status("","Using python module numpy")
51 except ImportError:
52 try:
53 print_status("Trying python numarray")
54 import numarray
55 matplotlib.rcParams['numerix'] = 'numarray'
56 print_status("","Using python module numarray")
57 except ImportError:
58 try:
59 print_status("Trying python Numeric")
60 import Numeric
61 matplotlib.rcParams['numerix'] = 'Numeric'
62 print_status("","Using python module Numeric")
63 except ImportError:
64 print_status("","FAILED TO LOAD A NUMERIC MODULE FOR PYTHON")
65
66 except ImportError,e:
67 print_status("","FAILED TO LOAD MATPLOTLIB")
68 if throw:
69 _d = gtk.MessageDialog(None,gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT
70 ,gtk.MESSAGE_ERROR,gtk.BUTTONS_CLOSE,"Plotting functions are not available unless you have 'matplotlib' installed.\n\nSee http://matplotlib.sf.net/\n\nFailed to load matplotlib (%s)" % str(e)
71 )
72 _d.run()
73 _d.destroy()
74 while gtk.events_pending():
75 gtk.main_iteration(False)
76 raise RuntimeError("Failed to load plotting library 'matplotlib'. Details:"+str(e))
77
78 def create_window():
79 _w = gtk.Window(gtk.WINDOW_TOPLEVEL)
80 _w.set_decorated(False)
81 _w.set_position(gtk.WIN_POS_CENTER)
82 _a = gtk.Alignment()
83 _a.set_padding(4,4,4,4)
84 _w.add(_a)
85 _a.show()
86 _v = gtk.VBox()
87 _a.add(_v)
88 _v.show()
89 _i = gtk.Image()
90 _i.set_pixel_size(3)
91 _i.set_from_file(os.path.join(config.PYGTK_ASSETS,'ascend-loading.svg'))
92 _v.add(_i)
93 _i.show()
94 _l = gtk.Label("Loading ASCEND...")
95 _l.set_justify(gtk.JUSTIFY_CENTER)
96 _v.add(_l)
97 _l.show()
98 _w.show()
99 return _w, _l
100
101 loadingwindow, loadinglabel = create_window()
102 is_loading = True
103

john.pye@anu.edu.au
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