wxruby users - Nov 2005 - Wx::SystemSettings

Hi all

Please find attached files to implement (much of) Wx::SystemSettings for 
wxruby2. I really just wanted to be able to get screen width and screen 
height, but there''s lots of other stuff there too; the sample file 
provides a listing of what''s avaiable, with descriptions. With this
email

* patch to typemap.i
* patch to RubyConstants.i
* new SystemSettings.i file for swig/classes
* new sample file for samples/system_settings/

There''s a few wrinkles that are beyond me:
1) The wx header file in wxruby2 CVS tree seems to be missing some 
methods listed elsewhere: SystemSettings::GetScreenType (listed in 2.6 
docs & my wx header file, settings.h), and SystemSettings::HasFeature 
(in header files, not in docs though)

2) Wx::SystemSettings.get_colour(xxx) segfaults for me (OS X 10.3) on a 
few of the constants listed in the docs. I have commented these out in 
the sample file for now, and the rest work as expected. For reference, 
running this in gdb I get the following error with the bad colours:

Program received signal EXC_BAD_ACCESS, Could not access memory.
0x02da4c04 in wxColour::wxColour(wxColour const&) ()

3) Wx::SystemSettings.get_font(xxx) segfaults for me for any value, so I 
have %ignored it for now in the .i file. For reference, gdb reports:

Program received signal EXC_BAD_ACCESS, Could not access memory.
0x02d83d68 in wxObject::Ref(wxObject const&) ()

all the best
alex







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Alex Fenton wrote:
> 2) Wx::SystemSettings.get_colour(xxx) segfaults for me (OS X 10.3) on 
> a few of the constants listed in the docs.
>
> 3) Wx::SystemSettings.get_font(xxx) segfaults for me for any value, so 
> I have %ignored it for now in the .i file.
A post on the wxwidgets list pointed out that trying to use GetColour 
static function without an inited App is not recommended, and causes 
segfaults. Turns out this was the problem with GetFont, so this class 
can be ported completely.

Please don''t commit for now, I''ll resubmit shortly with a
sample which
works and the %ignore removed.

Would be nice if WxWidgets did something more informative than segfaulting.

alex