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1 ###############################################################################
2 # Name: misc/gdb/print.py
3 # Purpose: pretty-printers for wx data structures: this file is meant to
4 # be sourced from gdb using "source -p" (or, better, autoloaded
5 # in the future...)
6 # Author: Vadim Zeitlin
7 # Created: 2009-01-04
8 # RCS-Id: $Id$
9 # Copyright: (c) 2009 Vadim Zeitlin
10 # Licence: wxWindows licence
11 ###############################################################################
12
13 # Define wxFooPrinter class implementing (at least) to_string() method for each
14 # wxFoo class we want to pretty print. Then just add wxFoo to the types array
15 # in wxLookupFunction at the bottom of this file.
16
17
18 # shamelessly stolen from std::string example
19 class wxStringPrinter:
20 def __init__(self, val):
21 self.val = val
22
23 def to_string(self):
24 return self.val['m_impl']['_M_dataplus']['_M_p'].string()
25
26 def display_hint(self):
27 return 'string'
28
29 class wxXYPrinterBase:
30 def __init__(self, val):
31 self.x = val['x']
32 self.y = val['y']
33
34 class wxPointPrinter(wxXYPrinterBase):
35 def to_string(self):
36 return '(%d, %d)' % (self.x, self.y)
37
38 class wxSizePrinter(wxXYPrinterBase):
39 def to_string(self):
40 return '%d*%d' % (self.x, self.y)
41
42 class wxRectPrinter(wxXYPrinterBase):
43 def __init__(self, val):
44 wxXYPrinterBase.__init__(self, val)
45 self.width = val['width']
46 self.height = val['height']
47
48 def to_string(self):
49 return '(%d, %d) %d*%d' % (self.x, self.y, self.width, self.height)
50
51
52 # The function looking up the pretty-printer to use for the given value.
53 def wxLookupFunction(val):
54 # Using a list is probably ok for so few items but consider switching to a
55 # set (or a dict and cache class types as the keys in it?) if needed later.
56 types = ['wxString', 'wxPoint', 'wxSize', 'wxRect']
57
58 for t in types:
59 if val.type.tag == t:
60 # Not sure if this is the best name to create the object of a class
61 # by name but at least it beats eval()
62 return globals()[t + 'Printer'](val)
63
64 return None
65
66 gdb.pretty_printers.append(wxLookupFunction)