wxlua-users Mailing List for wxLua

Hi John,

> "If you choose to use the container to do the styling you can use the
> SCI_SETLEXER command to select SCLEX_CONTAINER, in which case the
> container is sent a SCN_STYLENEEDED notification each time text needs
> styling for display."

You are absolutely right. In fact, I was reading this fragment and
somehow missed that STYLENEEDED is going to be *only* called when the
lexer is set to SCLEX_CONTAINER.

> I think the idea is that you will have to style everything all the
> time. Though, I don't remember having tried it myself.

Ok, related question then. Is it possible to use SCLEX_CONTAINER, but
still make a call that will apply styling using some lexer (for
example, Lua) and I'll do the rest of the styling as needed?

Paul.

On Thu, Nov 15, 2012 at 1:12 PM, John Labenski <jla...@gm...> wrote:
> On Thu, Nov 15, 2012 at 3:56 PM, Paul K <pau...@ya...> wrote:
>> Hi John,
>>
>> I've been doing custom styling and realized that the work that I've
>> done is mostly in UPDATEUI handlers, whereas it should probably be in
>> STYLENEEDED handlers. I looked at your editor and see that you also
>> only use UPDATEUI, but not STYLENEEDED.
>
> The Scintilla docs are pretty complete and map reasonably well to the
> wxWidgets wrapper.
> http://www.scintilla.org/ScintillaDoc.html
>
> "If you choose to use the container to do the styling you can use the
> SCI_SETLEXER command to select SCLEX_CONTAINER, in which case the
> container is sent a SCN_STYLENEEDED notification each time text needs
> styling for display."
>
> I think the idea is that you will have to style everything all the
> time. Though, I don't remember having tried it myself.
>
> Regards,
>     John
>
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On Thu, Nov 15, 2012 at 3:56 PM, Paul K <pau...@ya...> wrote:
> Hi John,
>
> I've been doing custom styling and realized that the work that I've
> done is mostly in UPDATEUI handlers, whereas it should probably be in
> STYLENEEDED handlers. I looked at your editor and see that you also
> only use UPDATEUI, but not STYLENEEDED.

The Scintilla docs are pretty complete and map reasonably well to the
wxWidgets wrapper.
http://www.scintilla.org/ScintillaDoc.html

"If you choose to use the container to do the styling you can use the
SCI_SETLEXER command to select SCLEX_CONTAINER, in which case the
container is sent a SCN_STYLENEEDED notification each time text needs
styling for display."

I think the idea is that you will have to style everything all the
time. Though, I don't remember having tried it myself.

Regards,
    John

Hi John,

I've been doing custom styling and realized that the work that I've
done is mostly in UPDATEUI handlers, whereas it should probably be in
STYLENEEDED handlers. I looked at your editor and see that you also
only use UPDATEUI, but not STYLENEEDED.

I did some tests and STYLENEEDED didn't seem to be called at all
(tested on Windows Vista with wxlua 2.8.12.2). You can easily see it
yourself by adding the following code to editor.wx.lua around line
587:

    editor:Connect(wxstc.wxEVT_STC_STYLENEEDED,
            function (event) DisplayOutput("StyleNeeded\n") end)

Just in case I added debug output to UPDATEUI handler and it's called
as expected. I thought maybe the constant is mistyped, but it's the
same one present in the DLL file and it returns 10281 as the value.

Is there some trick I need to involve to get EVT_STC_STYLENEEDED
generated? Is there a working example where it's used? Anyone else is
using this event?

Paul.

Hello,

This is what I get:

>lua.exe
Lua 5.1.5  Copyright (C) 1994-2012 Lua.org, PUC-Rio
> print(1.234, string.format("%f", 2.345), os.setlocale())
1.234   2.345000        C
> require("wx")
> print(1.234, string.format("%f", 2.345), os.setlocale())
1,234   2,345000        Spanish_Spain.1252
> print(os.setlocale("", "all"))
Spanish_Spain.1252
> print(1.234, string.format("%f", 2.345), os.setlocale())
1,234   2,345000        Spanish_Spain.1252
>

manual from lua.51 says:
If locale is the empty string, the current locale is set to an 
implementation-defined native locale.
May be Spanish locale was hard coded in my lua.exe compilation and wxlua 
calls os.setlocale("", "all")?

I have used os.setlocale("C") in my lua script after require"wx" and 
everything works as I expected
(but of course wx.wxMessageBox prints 1.234 which is not anoying for me). 
Would be good idea to
mention in the FAQ what is happenig with the locale.


Best Regards

On Wed, Nov 14, 2012 at 4:02 AM, Victor Bombi <so...@te...> wrote:
> Hello,
>
>> wxLua does not change the locale, but wxWidgets might to make the UI
>> numeric display appropriate for users.
>
> That`s true:
> with print(os.locale()) before and after the require"wx" I get
>
> C
> Spanish_Spain.1252
>
>> What OS are you on? If you're in Linux you can apply the patch below
>> and recompile the wxLua module lib. Please let me know if it works for
>> you and I will apply it to svn.
>
> My OS is windows. Perhaps the solution would be just calling os.locale("C")
> after require"wx"?

I'm fairly new to this stuff, but curious...

It looks like you can change it temporarily for a given prompt.
http://publib.boulder.ibm.com/infocenter/wmbhelp/v6r1m0/index.jsp?topic=%2Fcom.ibm.etools.mft.doc%2Fae19495_.htm

Open a new command (DOS) prompt:

# This is what I use normally
c:\>chcp
Active code page: 437

# Change it to this
c:\>chcp 1252
Active code page: 1252

# Run lua and see what happens.
C:\>lua.exe
Lua 5.1.5  Copyright (C) 1994-2012 Lua.org, PUC-Rio
> print(1.234, string.format("%f", 2.345), os.setlocale())
1.234   2.345000        C
> require("wx")
> print(1.234, string.format("%f", 2.345), os.setlocale())
1.234   2.345000        C
> print(os.setlocale("", "all"))
English_United States.1252
> print(1.234, string.format("%f", 2.345), os.setlocale())
1.234   2.345000        English_United States.1252

On a whim, I tried this...

> print(os.setlocale("Spanish_Spain.1252", "all"))
Spanish_Spain.1252
> print(1.234, string.format("%f", 2.345), os.setlocale())
1,234   2,345000        Spanish_Spain.1252
> wx.wxMessageBox(string.format("%f", 1.234), string.format("%f", 2.345), wx.wxOK)
Displays a message box using 1,234 and 2,345...

Can you try the above commands and let me know what they print for you?

=========================

The code I posted is to ensure that the Lua parser uses the C locale
(1.0 not 1,0), but using require("wx") means that Lua has already
parsed the Lua code so that doesn't matter. I imagine the right thing
to do would be to save the locale before initializing wxWidgets in
wx.dll then if changed set to back to what it was. I don't know if
this is a suitable solution though. If the locale was forced to 'C' or
back to what it was then Lua might work "normally", but the GUI would
look wrong for some people. I would imagine that wxWidgets changes it
to make the GUI right and that's probably the right thing to do.
Hopefully you can force it back by calling Lua's os.setlocale("C",
"all") and if it works I'll put it in the FAQ.

Regards,
    John

Hello,

> wxLua does not change the locale, but wxWidgets might to make the UI
> numeric display appropriate for users.

That`s true:
with print(os.locale()) before and after the require"wx" I get

C
Spanish_Spain.1252


> What OS are you on? If you're in Linux you can apply the patch below
> and recompile the wxLua module lib. Please let me know if it works for
> you and I will apply it to svn.

My OS is windows. Perhaps the solution would be just calling os.locale("C") 
after require"wx"?

Best Regards
Victor Bombi
 

On Tue, Nov 13, 2012 at 8:02 AM, Konstantin <lal...@gm...> wrote:
> I've success built wxLua-r156 (patched) with wxWidgets 2.9.4 on Linux and
> Windows!
>
> Can u add this binding please?

Yep, thanks for the patch.

> Also it will be cool to see wxScrolledCanvas and base classes like
> wxNavigationEnabled<wxWindow> and wxControlContainerBase
> to use Focus functions in 2.9!

Use wxScrolledWindow, wxNavigationEnabled has no public functions in
the docs and since wxPanel is derived from it you already have it, the
wxEvtHandler class has the Get/SetClientData/Object() functions so all
classes including wxWindows have those functions too.

The wxLua bindings are loose interpretations of the actual wxWidgets
C++ headers to allow it to work for 2.8 and 2.9 without having to
really hack it up too badly.

Regards,
    John

On Mon, Nov 12, 2012 at 2:14 PM, Victor Bombi <so...@te...> wrote:
> Hello,
>
> this script:
>
> print(0.4)
> require("wx")
> print(0.4)
>
> does this output:
>
> 0.4
> 0,4
>
> For me is very bad because I cant serialize floats. Is there any reason for
> changing tostring method for numbers or could be reverted?

wxLua does not change the locale, but wxWidgets might to make the UI
numeric display appropriate for users.

What OS are you on? If you're in Linux you can apply the patch below
and recompile the wxLua module lib. Please let me know if it works for
you and I will apply it to svn.

Regards,
    John


Index: wxLua/modules/luamodule/luamodule.cpp
===================================================================
--- C:/NOSCAN/wx/svnroot_wx/wx/wxLua/wxLua-trunk/trunk/wxLua/modules/luamodule/luamodule.cpp	(revision
156)
+++ C:/NOSCAN/wx/svnroot_wx/wx/wxLua/wxLua-trunk/trunk/wxLua/modules/luamodule/luamodule.cpp	(working
copy)
@@ -192,6 +192,17 @@
             return 0;
         }

+        #ifdef __WXGTK__
+            // this call is very important since otherwise scripts
using the decimal
+            // point '.' could not work with those locales which use
a different symbol
+            // (e.g. the comma) for the decimal point...
+            // It doesn't work to put os.setlocale('c', 'numeric') in
the Lua file that
+            // you want to use decimal points in. That's because the
file has been lexed
+            // and compiler before the locale has changed, so the
lexer - the part that
+            // recognises numbers - will use the old locale.
+            setlocale(LC_NUMERIC, "C");
+        #endif
+
         wxTheApp->SetExitOnFrameDelete(true);
         wxInitAllImageHandlers();

Hello,

this script:

print(0.4)
require("wx")
print(0.4)

does this output:

0.4
0,4

For me is very bad because I cant serialize floats. Is there any reason for changing tostring method for numbers or could be reverted?

Thank you

Victor Bombi

On Nov 7, 2012 9:59 AM, "Bartłomiej Piotrowski" <b...@bp...> wrote:
>
> Hello!
>
> Do I have bigger vision problems than I thought or there is no sources
> of 2.8.12.2 release on SourceForge? If the latter is correct, where can
> I get them (apart from Git/Subversion)?

I'm afraid I didn't make them as they are not exactly official releases,
though they are stable. There are instructions on getting the svn in the
install.html document. The svn viewer even has a link to download a
tarball, though I haven't tried it myself.

Regards,
    John

Hello!

Do I have bigger vision problems than I thought or there is no sources
of 2.8.12.2 release on SourceForge? If the latter is correct, where can
I get them (apart from Git/Subversion)?

-- 
Bartłomiej Piotrowski
http://bpiotrowski.pl/