scipy tutorial - Baustatik-Info-Server

#line 108 "wx_example.py"
dc->BeginDrawing();
dc->SetPen(wxPen(*red,4,wxSOLID));
dc->DrawRectangle(5,5,50,50);
dc->SetBrush(*grey_brush);
dc->SetPen(wxPen(*blue,4,wxSOLID));
dc->DrawRectangle(15, 15, 50, 50);
"""
inline(code,[’dc’,’red’,’blue’,’grey_brush’])
dc.SetFont(wxFont(14, wxSWISS, wxNORMAL, wxNORMAL))
dc.SetTextForeground(wxColour(0xFF, 0x20, 0xFF))
te = dc.GetTextExtent("Hello World")
dc.DrawText("Hello World", 60, 65)
dc.SetPen(wxPen(wxNamedColour(’VIOLET’), 4))
dc.DrawLine(5, 65+te[1], 60+te[0], 65+te[1])
...
SciPy Reference Guide, Release 0.8.dev
Here, some of the Python calls to wx objects were just converted to C++ calls. There isn’t any benefit, it just demonstrates
the capabilities. You might want to use this if you have a computationally intensive loop in your drawing code
that you want to speed up. On windows, you’ll have to use the MSVC compiler if you use the standard wxPython
DLLs distributed by Robin Dunn. Thats because MSVC and gcc, while binary compatible in C, are not binary compatible
for C++. In fact, its probably best, no matter what platform you’re on, to specify that inline use the same
compiler that was used to build wxPython to be on the safe side. There isn’t currently a way to learn this info from the
library – you just have to know. Also, at least on the windows platform, you’ll need to install the wxWindows libraries
and link to them. I think there is a way around this, but I haven’t found it yet – I get some linking errors dealing with
wxString. One final note. You’ll probably have to tweak weave/wx_spec.py or weave/wx_info.py for your machine’s
configuration to point at the correct directories etc. There. That should sufficiently scare people into not even looking
at this... :)
Keyword Option
The basic definition of the inline() function has a slew of optional variables. It also takes keyword arguments that
are passed to distutils as compiler options. The following is a formatted cut/paste of the argument section of
inline’s doc-string. It explains all of the variables. Some examples using various options will follow.
def inline(code,arg_names,local_dict = None, global_dict = None,
force = 0,
compiler=’’,
verbose = 0,
support_code = None,
customize=None,
type_factories = None,
auto_downcast=1,
**kw):
inline has quite a few options as listed below. Also, the keyword arguments for distutils extension modules are
accepted to specify extra information needed for compiling.
Inline Arguments
code string. A string of valid C++ code. It should not specify a return statement. Instead it should assign results that
need to be returned to Python in the return_val. arg_names list of strings. A list of Python variable names that should
1.12. Weave 97