wxlua-users — wxLua list for users and developers

Re: [wxlua-users] Debugging wxlua programs in Zerobrane studio

[Paul K <pau...@ya...>]

Hi Milind,

> I just started using the studio and it is very good. Only thing is when I go into debug it executes my program using lua. I like to execute it using wxlua. How can I configure that?

You can change the executable that is used to run/debug the scripts.
The example is here
(https://github.com/pkulchenko/ZeroBraneStudio/blob/master/cfg/user-sample.lua#L44)
and instruction are here
(http://studio.zerobrane.com/doc-configuration.html)

> Also is the UI done in wxlua? If yes how do you implement the main text with down with different colors, breakpoint mark and line numbers?

Yes, everything is done in wxlua. The editing component is Scintilla,
so all I need to do is to configure it to display proper margins,
markers, and set colors I want. This is mostly done in
src/editor/editor.lua (CreateEditor) and src/editor/style.lua (where
all the style information is processed).

Paul.


On Tue, May 14, 2013 at 12:42 PM, Milind Gupta <mil...@gm...> wrote:
> Hi Paul,
>       I just started using the studio and it is very good. Only thing is
> when I go into debug it executes my program using lua. I like to execute it
> using wxlua. How can I configure that?
>       Also is the UI done in wxlua? If yes how do you implement the main
> text with down with different colors, breakpoint mark and line numbers?
>
> Thanks,
> Milind
>
>
> On Fri, May 3, 2013 at 9:41 AM, Paul K <pau...@ya...> wrote:
>>
>> Hi All,
>>
>> Does anyone have a simple drag and drop example that works with wxlua?
>> I've seen an example in this ticket
>>
>> (http://sourceforge.net/tracker/index.php?func=detail&aid=3060958&group_id=140042&atid=745327),
>> but can't get it to work. It seems like I'm missing SetDropTarget
>> call, but I can't figure out what to pass it as a parameter. According
>> to the docs
>> (http://docs.wxwidgets.org/2.8/wx_wxwindow.html#wxwindowsetdroptarget)
>> it expects wxDropTarget, but wx.wxDropTarget is an empty table for me,
>> so I'm not sure how to instantiate it.
>>
>> I need to implement it for wxTreeCtrl and wxStyledTextCtrl, but any
>> working example will help. Thank you.
>>
>> Paul.
>>
>>
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[wxlua-users] Debugging wxlua programs in Zerobrane studio

[Milind G. <mil...@gm...>]

Hi Paul,
      I just started using the studio and it is very good. Only thing is
when I go into debug it executes my program using lua. I like to execute it
using wxlua. How can I configure that?
      Also is the UI done in wxlua? If yes how do you implement the main
text with down with different colors, breakpoint mark and line numbers?

Thanks,
Milind


On Fri, May 3, 2013 at 9:41 AM, Paul K <pau...@ya...> wrote:

> Hi All,
>
> Does anyone have a simple drag and drop example that works with wxlua?
> I've seen an example in this ticket
> (
> http://sourceforge.net/tracker/index.php?func=detail&aid=3060958&group_id=140042&atid=745327
> ),
> but can't get it to work. It seems like I'm missing SetDropTarget
> call, but I can't figure out what to pass it as a parameter. According
> to the docs (
> http://docs.wxwidgets.org/2.8/wx_wxwindow.html#wxwindowsetdroptarget)
> it expects wxDropTarget, but wx.wxDropTarget is an empty table for me,
> so I'm not sure how to instantiate it.
>
> I need to implement it for wxTreeCtrl and wxStyledTextCtrl, but any
> working example will help. Thank you.
>
> Paul.
>
>
> ------------------------------------------------------------------------------
> Get 100% visibility into Java/.NET code with AppDynamics Lite
> It's a free troubleshooting tool designed for production
> Get down to code-level detail for bottlenecks, with <2% overhead.
> Download for free and get started troubleshooting in minutes.
> http://p.sf.net/sfu/appdyn_d2d_ap2
> _______________________________________________
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[wxlua-users] Fwd: wxMenu is missing SetParent/GetParent methods from the binding (2.9.x methods).

[Paul K <pau...@ya...>]

Hi John,

Thank you for adding wxEVT_LUA_ERROR and wxTreeCtrl::SetItemState.

There are couple of other (relatively easy) methods that are missing
from the binding: wxMenu SetParent and GetParent methods
(http://docs.wxwidgets.org/trunk/classwx_menu.html#abfba34a537e6a69ee6531e333dfbeacb);
these are 2.9 methods. Would it be possible to add these as well?
Thank you.

Paul.

[wxlua-users] A simple drag and drop example?

[Paul K <pau...@ya...>]

Hi All,

Does anyone have a simple drag and drop example that works with wxlua?
I've seen an example in this ticket
(http://sourceforge.net/tracker/index.php?func=detail&aid=3060958&group_id=140042&atid=745327),
but can't get it to work. It seems like I'm missing SetDropTarget
call, but I can't figure out what to pass it as a parameter. According
to the docs (http://docs.wxwidgets.org/2.8/wx_wxwindow.html#wxwindowsetdroptarget)
it expects wxDropTarget, but wx.wxDropTarget is an empty table for me,
so I'm not sure how to instantiate it.

I need to implement it for wxTreeCtrl and wxStyledTextCtrl, but any
working example will help. Thank you.

Paul.

Re: [wxlua-users] wxTreeCtrl:SetItemState is missing in wxLua 2.8.12.x

[John L. <jla...@gm...>]

On Mon, Apr 22, 2013 at 2:54 PM, Paul K <pau...@ya...> wrote:

> Hi John,
>
> Can you add wxTreeCtrl:SetItemState (2.9.x call) as well as related
> constants (wxTREE_ITEMSTATE_*)?
>

Sure, added in SVN trunk.

Regards,
    John

Re: [wxlua-users] Patch: trunk won't run on pre-XP systems

[John L. <jla...@gm...>]

On Tue, Apr 30, 2013 at 9:27 AM, Les Newell <les...@fa...>wrote:

> The trunk version of wxLua won't run on pre-XP systems because it depends
> on AttachConsole in kernel32 (introduced in XP). The attached patch only
> calls AttachConsole if it is available.
>
>
Thanks for the patch, applied in SVN trunk.

Regards,
    John

[wxlua-users] Patch: trunk won't run on pre-XP systems

[Les N. <les...@fa...>]

The trunk version of wxLua won't run on pre-XP systems because it 
depends on AttachConsole in kernel32 (introduced in XP). The attached 
patch only calls AttachConsole if it is available.

[wxlua-users] How to install custom EVT_LUA_ERROR handler?

[Paul K <pau...@ya...>]

Hi John,

I'm trying to provide my own custom error handler that will replace
the default dialog shown after run-time errors in wxlua
(wxLuaModuleApp::OnLuaError), but I'm having trouble with it as
wxEVT_LUA_ERROR doesn't seem to be available to Lua scripts.

Was that intentional and is it possible to make it available as it
would be very convenient for my app to capture and report errors and
to provide a customized error message?

I also tried providing my own debug.traceback call to hadle this (and
to return nil from it), but wxlua still shows an empty dialog in this
case (and I'd prefer the dialog to be completely removed). Having
ability to assign EVT_LUA_ERROR handler would be the easiest/proper
way to handle this. Thank you.

Paul.

[wxlua-users] wxTreeCtrl:SetItemState is missing in wxLua 2.8.12.x

[Paul K <pau...@ya...>]

Hi John,

Can you add wxTreeCtrl:SetItemState (2.9.x call) as well as related
constants (wxTREE_ITEMSTATE_*)?

The click event for the item state is there
(EVT_(COMMAND_)TREE_STATE_IMAGE_CLICK), but not the state setting
method. Thank you.

Paul.

Re: [wxlua-users] wxLua dispatching Asynchronous events?

[Javier Mr <jav...@ym...>]

Hi, 


thanks a lot for the detailed information. I finally resolve the issue and it turns out that was due to running my App compiled in Debug and loading wxLua, in release. Once done that the app works perfectly.

The problem was that it didn't crash at start or always at the same point, mostly crashed when extresed. But i have said, problem running with Debug and Release libraries mixed.

Best regards.
Javi



----- Mensaje original -----
> De: John Labenski <jla...@gm...>
> Para: Javier Mr <jav...@ym...>; wxl...@li...
> CC: 
> Enviado: Viernes 12 de abril de 2013 23:56
> Asunto: Re: [wxlua-users] wxLua dispatching Asynchronous events?
> 
> On Fri, Apr 12, 2013 at 4:13 PM, Javier Mr <jav...@ym...> 
> wrote:
>>  Hi,
>> 
>>  i'm using wxLua to make an interface, but i'm facing several 
> crashed and after looking for the source of them i could find it. I have an idea 
> of a posible reason so i will ask in case this is a known behaviour. First 
> several questions?
>> 
>>  1. First in wxWidgets, are events (click, cell changes, tree item 
> activation, etc...) dispatched synchronously or asynchronously?
> 
> Asynchronously (in a way), but single threaded. wxWidgets apps
> basically "hang" in the native OS event loop until the mouse is moved,
> key pressed, etc. You can "pump" the event loop by requesting a
> wxIdleEvent or using a wxTimer.
> 
>>  2. If asynchronously, could it be posible that to events are dispatcher 
> against the same lua state simultaneaously?.
> 
> You will never have two functions called at once by the wxWidgets event loop.
> 
>>  What i have is a tree control with several items and a grid, so when a item 
> in the tree is activated the grid is filled up. I'm currently connected to 
> events for tree item activation, tree item right click, grid cell changed.
>> 
>>  Let's suppose the wxWidget thread running on the main loop is A ( 3. 
> which i belive is the thread that load the lua script, isn't it? ),
> 
> Yes, same thread.
> 
>>  when i activate a tree node a event (evt1) will be queued in the event 
> queue (4. isn't it?), and the main loop will check for pending events it 
> will find the event (evt1) and will dispatch it (5. but will the lua function 
> from the event handler be called by the thread running the main loop (A) or will 
> a second thread be created (B) ?).
>> 
> 
> Never a second thread.
> 
>> 
>>  In case question 5 is that a new thread will be created for executing the 
> handler, could another event in the tree (evt2) be queued in the events queue 
> and then the main loop thread (A) dispatch it creating a new thread (C) 
> **accesing** and modifiying the lua state while the previous event thread (B) 
> hasn't return yet?
>> 
> 
> Nobody, including your code, should *ever* try to access any wxWidgets
> control from any other thread than the one it was created in.
> 
>>  My hole test so far have been repainting the grid while clicking several 
> timer over a tree item so the event handler doesn't return inmediatly.
>> 
>>  I think all previous questions could be summariazed but, does wxLua protect 
> the access to the lua state from within wxLua?
> 
> No, there would be way too many places to put mutexes, it would be really ugly.
> 
> A wxLua app works this way.
> 
> 1) Start Lua... load the libs require("wx") etc.
> 2) Execute the Lua code, but it quickly gets to the end of the code.
>     The code defines functions, creates the wxFrame add child windows,
> connect events... but doesn't really do any "work"
> 3) Then if any wxFrames (or any wxTopLevelWindow derived class) exist,
> wxLua starts the wxWidgets event loop and the app "hangs" in it
> waiting for user input.
> 
> Hope this makes sense,
>      John
> 

Re: [wxlua-users] wxLua dispatching Asynchronous events?

[John L. <jla...@gm...>]

On Fri, Apr 12, 2013 at 4:13 PM, Javier Mr <jav...@ym...> wrote:
> Hi,
>
> i'm using wxLua to make an interface, but i'm facing several crashed and after looking for the source of them i could find it. I have an idea of a posible reason so i will ask in case this is a known behaviour. First several questions?
>
> 1. First in wxWidgets, are events (click, cell changes, tree item activation, etc...) dispatched synchronously or asynchronously?

Asynchronously (in a way), but single threaded. wxWidgets apps
basically "hang" in the native OS event loop until the mouse is moved,
key pressed, etc. You can "pump" the event loop by requesting a
wxIdleEvent or using a wxTimer.

> 2. If asynchronously, could it be posible that to events are dispatcher against the same lua state simultaneaously?.

You will never have two functions called at once by the wxWidgets event loop.

> What i have is a tree control with several items and a grid, so when a item in the tree is activated the grid is filled up. I'm currently connected to events for tree item activation, tree item right click, grid cell changed.
>
> Let's suppose the wxWidget thread running on the main loop is A ( 3. which i belive is the thread that load the lua script, isn't it? ),

Yes, same thread.

> when i activate a tree node a event (evt1) will be queued in the event queue (4. isn't it?), and the main loop will check for pending events it will find the event (evt1) and will dispatch it (5. but will the lua function from the event handler be called by the thread running the main loop (A) or will a second thread be created (B) ?).
>

Never a second thread.

>
> In case question 5 is that a new thread will be created for executing the handler, could another event in the tree (evt2) be queued in the events queue and then the main loop thread (A) dispatch it creating a new thread (C) **accesing** and modifiying the lua state while the previous event thread (B) hasn't return yet?
>

Nobody, including your code, should *ever* try to access any wxWidgets
control from any other thread than the one it was created in.

> My hole test so far have been repainting the grid while clicking several timer over a tree item so the event handler doesn't return inmediatly.
>
> I think all previous questions could be summariazed but, does wxLua protect the access to the lua state from within wxLua?

No, there would be way too many places to put mutexes, it would be really ugly.

A wxLua app works this way.

1) Start Lua... load the libs require("wx") etc.
2) Execute the Lua code, but it quickly gets to the end of the code.
    The code defines functions, creates the wxFrame add child windows,
connect events... but doesn't really do any "work"
3) Then if any wxFrames (or any wxTopLevelWindow derived class) exist,
wxLua starts the wxWidgets event loop and the app "hangs" in it
waiting for user input.

Hope this makes sense,
     John

[wxlua-users] wxLua dispatching Asynchronous events?

[Javier Mr <jav...@ym...>]

Hi,

i'm using wxLua to make an interface, but i'm facing several crashed and after looking for the source of them i could find it. I have an idea of a posible reason so i will ask in case this is a known behaviour. First several questions?

1. First in wxWidgets, are events (click, cell changes, tree item activation, etc...) dispatched synchronously or asynchronously?

2. If asynchronously, could it be posible that to events are dispatcher against the same lua state simultaneaously?.

What i have is a tree control with several items and a grid, so when a item in the tree is activated the grid is filled up. I'm currently connected to events for tree item activation, tree item right click, grid cell changed.

Let's suppose the wxWidget thread running on the main loop is A ( 3. which i belive is the thread that load the lua script, isn't it? ), when i activate a tree node a event (evt1) will be queued in the event queue (4. isn't it?), and the main loop will check for pending events it will find the event (evt1) and will dispatch it (5. but will the lua function from the event handler be called by the thread running the main loop (A) or will a second thread be created (B) ?). 


In case question 5 is that a new thread will be created for executing the handler, could another event in the tree (evt2) be queued in the events queue and then the main loop thread (A) dispatch it creating a new thread (C) **accesing** and modifiying the lua state while the previous event thread (B) hasn't return yet?

My hole test so far have been repainting the grid while clicking several timer over a tree item so the event handler doesn't return inmediatly.

I think all previous questions could be summariazed but, does wxLua protect the access to the lua state from within wxLua?

Thanks in advance.

Best regards.

Javi.

Note: I will post the same question on StackOverflow, just letting you know. I will copy the solution from one to another.

Re: [wxlua-users] undefined reference to wxLuaState::Ok()

[John L. <jla...@gm...>]

On Wed, Apr 10, 2013 at 5:39 PM, andreas graeper
<agr...@go...> wrote:
> hi,
> lubuntu12
> lua5.1.5
> wx2.8.12 gtk2du
> wxlua2.8.10.0 this downloaded as source archive
>
> now i tried svn version:
>
>
> CMake Error at build/CMakewxAppLib.cmake:112 (get_filename_component):
>   get_filename_component called with incorrect number of arguments
> Call Stack (most recent call first):
>   CMakeLists.txt:25 (include)

What version of CMake and did you compile it yourself? wxLua is tested
mostly with 2.8.4 -> 2.8.9 in Windows and Fedora, RHEL, and Mandriva.
I'm guessing that the variable CMAKE_EDIT_COMMAND is somehow not set
by CMake? It should point to cmake-gui falling back to ccmake which
should be a part of any normal CMake install.

Please add this line shown below and let me know what the output is :

Index: wxLua/build/CMakewxAppLib.cmake
===================================================================
--- wxLua/build/CMakewxAppLib.cmake	(revision 178)
+++ wxLua/build/CMakewxAppLib.cmake	(working copy)
@@ -109,6 +109,7 @@

 if (UNIX)
     # We want to open it in the gui, not in the curses ccmake which
is broken in the gnome terminal (RHEL6)
+    MESSAGE("AAAA '${CMAKE_EDIT_COMMAND}'")
     get_filename_component(CMAKE_EDIT_COMMAND_PATH ${CMAKE_EDIT_COMMAND} PATH)

     if (EXISTS ${CMAKE_EDIT_COMMAND_PATH}/cmake-gui)


> and other output tells, that installed lua is not used.

Don't worry about that yet, as long as you're getting the error
anything else is meaningless.

Regards,
    John

Re: [wxlua-users] undefined reference to wxLuaState::Ok()

[andreas g. <agr...@go...>]

hi,
lubuntu12
lua5.1.5
wx2.8.12 gtk2du
wxlua2.8.10.0 this downloaded as source archive

now i tried svn version:


CMake Error at build/CMakewxAppLib.cmake:112 (get_filename_component):
  get_filename_component called with incorrect number of arguments
Call Stack (most recent call first):
  CMakeLists.txt:25 (include)

and other output tells, that installed lua is not used.



2013/4/10 John Labenski <jla...@gm...>

> Hi Andreas,
>
> You got a lot going on here. First things first, what OS are you on,
> what wxLua version are you compiling? I recommend using the SVN
> version and the CMake build since it is far easier to work with. Use
> the install.html file in the SVN docs/ dir.
>
> Regards,
>     John
>
>
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>

Re: [wxlua-users] RawControlDown, SetRawControlDown, wxMOD_RAW_CONTROL, wxACCEL_RAW_CTRL, and WXK_RAW_CONTROL not present in wxlua 2.8.12.3

[John L. <jla...@gm...>]

On Apr 9, 2013 11:41 PM, "Paul K" <pau...@ya...> wrote:
>
> Hi John,
>
> Would it be possible to add missing calls and constants? Thank you.
>
> BTW, ControlDown() has changed its behavior between 2.8 and 2.9 wxwidgets
as it used to mean Ctrl on all platforms (with CmdDown() meaning Ctrl/Cmd),
but it now means Ctrl/Cmd (and CmdDown() is deprecated). RawControlDown()
replaced the "old" ControlDown(). wxMOD_* modifiers have been updated in a
similar way.
>

What class? wxKeyEvent?

Regards,
    John

[wxlua-users] RawControlDown, SetRawControlDown, wxMOD_RAW_CONTROL, wxACCEL_RAW_CTRL, and WXK_RAW_CONTROL not present in wxlua 2.8.12.3

[Paul K <pau...@ya...>]

Hi John,

Would it be possible to add missing calls and constants? Thank you.

BTW, ControlDown() has changed its behavior between 2.8 and 2.9 wxwidgets
as it used to mean Ctrl on all platforms (with CmdDown() meaning Ctrl/Cmd),
but it now means Ctrl/Cmd (and CmdDown() is deprecated). RawControlDown()
replaced the "old" ControlDown(). wxMOD_* modifiers have been updated in a
similar way.

Just wanted to let you and others know as I got burned by this a bit...

Paul.

Re: [wxlua-users] undefined reference to wxLuaState::Ok()

[John L. <jla...@gm...>]

Hi Andreas,

You got a lot going on here. First things first, what OS are you on,
what wxLua version are you compiling? I recommend using the SVN
version and the CMake build since it is far easier to work with. Use
the install.html file in the SVN docs/ dir.

Regards,
    John

Re: [wxlua-users] Asyncronous updates

[John L. <jla...@gm...>]

On Tue, Apr 9, 2013 at 9:06 AM, Javier Mr <jav...@ym...> wrote:
> Hi,
>
> Thanks for your response. But, as i have understand, with that aproach i need to subclass wx (affordable) and connect my native app directly with wxWidgets; this is not desirable in my case since my app will mostly run in a terminal just with a text interface and in certain cases bring up the GUI. Doing that would imply that i have to compile against wxWidgets and also the i would have one dependency more in the proyect.

You might want to consider using a plugin type architecture for the
data/status handler. In your Lua work module you provide a function
that allows people to register functions to use as callbacks when new
data is available. On new data/status the work module loops through
the list of handler functions and calls them. This separates the wxLua
part from your worker code and in the function you push from wxLua you
call wxPostEvent with whatever upvalues you need to make it work...


Regards,
    John

Re: [wxlua-users] undefined reference to wxLuaState::Ok()

[andreas g. <agr...@go...>]

i tried to load wx.so (simply require"wx") but got a segfault.
so i removed everything (lua and wxlua) and started with installation of
lua 5.1.5
wxlua configure script does not find lua installation

no fun anymore.


2013/4/9 andreas graeper <agr...@go...>

> i tried to make with wxLuaEdit=no (cause missing wxstedit) :
>
>
> ../../modules/wxbind/src/wxcore_image.cpp:2296:54: error: taking address
> of temporary [-fpermissive]
>
> this looks rather ill to me :
>
>  wxImageHistogram::iterator* returns = &((*self)++);
>
>  intended (?) :
>   ++*self ;
>   returns = self ;
>
> after correcting this, make completes.
>
>
>
>
> 2013/4/9 andreas graeper <agr...@go...>
>
>> hi,
>> i did not use cmake. just configure and make. why cmake ? no clue.
>>
>> i read install.html again and tried once again with
>> configure-shell-script in extra build directory. but now it still tells me
>> that
>> wxcode_gtk2ud_stedit-2.8 could not be found. i have installed it twice,
>> once with prefix /usr/local (default) and again with prefix /usr
>> libwxcode_gtk2ud_stedit-2.8.so exists in /usr/lib and /usr/local/lib
>>
>> i used wxlua-configure option --with-wxstedit-prefix=/usr/local
>> i tried to set env variable WXSTEDIT to wxstedit-include-path for both
>> prefix=/usr and /usr/local ( /usr/local/include/wx/stedit/ )
>> but could not succeed.
>>
>>
>> 2013/4/8 John Labenski <jla...@gm...>
>>
>>> On Sun, Apr 7, 2013 at 2:41 PM, andreas graeper <agr...@go...>
>>> wrote:
>>> >
>>> > g++
>>> >  -o ../bin/wxlua
>>> >  app_wxlua_lconsole.o
>>> >  app_wxlua_wxlua.o
>>> >
>>> ...
>>> > lconsole.cpp:(.text+0x53e): undefined reference to `wxLuaState::Ok()
>>> const'
>>> ...
>>> > libwxlua_gtk2u_wxlua-2.8.so:000000000001fc90 T _ZNK10wxLuaState2OkEv
>>> ...
>>> > symbol should be defined in libwxlua_gtk2u_wxlua-2.8.so ?!
>>>
>>> It should be and looks like it is. How did you build wxLua? Did you
>>> build wxLua libs and apps using the CMake build files?
>>>
>>> Regards,
>>>     John
>>>
>>>
>>> ------------------------------------------------------------------------------
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>>> the most talented Cisco Certified professionals. Visit the
>>> Employer Resources Portal
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>>> _______________________________________________
>>> wxlua-users mailing list
>>> wxl...@li...
>>> https://lists.sourceforge.net/lists/listinfo/wxlua-users
>>>
>>
>>
>

Re: [wxlua-users] undefined reference to wxLuaState::Ok()

[andreas g. <agr...@go...>]

i tried to make with wxLuaEdit=no (cause missing wxstedit) :


../../modules/wxbind/src/wxcore_image.cpp:2296:54: error: taking address of
temporary [-fpermissive]

this looks rather ill to me :

 wxImageHistogram::iterator* returns = &((*self)++);

 intended (?) :
  ++*self ;
  returns = self ;

after correcting this, make completes.




2013/4/9 andreas graeper <agr...@go...>

> hi,
> i did not use cmake. just configure and make. why cmake ? no clue.
>
> i read install.html again and tried once again with configure-shell-script
> in extra build directory. but now it still tells me that
> wxcode_gtk2ud_stedit-2.8 could not be found. i have installed it twice,
> once with prefix /usr/local (default) and again with prefix /usr
> libwxcode_gtk2ud_stedit-2.8.so exists in /usr/lib and /usr/local/lib
>
> i used wxlua-configure option --with-wxstedit-prefix=/usr/local
> i tried to set env variable WXSTEDIT to wxstedit-include-path for both
> prefix=/usr and /usr/local ( /usr/local/include/wx/stedit/ )
> but could not succeed.
>
>
> 2013/4/8 John Labenski <jla...@gm...>
>
>> On Sun, Apr 7, 2013 at 2:41 PM, andreas graeper <agr...@go...>
>> wrote:
>> >
>> > g++
>> >  -o ../bin/wxlua
>> >  app_wxlua_lconsole.o
>> >  app_wxlua_wxlua.o
>> >
>> ...
>> > lconsole.cpp:(.text+0x53e): undefined reference to `wxLuaState::Ok()
>> const'
>> ...
>> > libwxlua_gtk2u_wxlua-2.8.so:000000000001fc90 T _ZNK10wxLuaState2OkEv
>> ...
>> > symbol should be defined in libwxlua_gtk2u_wxlua-2.8.so ?!
>>
>> It should be and looks like it is. How did you build wxLua? Did you
>> build wxLua libs and apps using the CMake build files?
>>
>> Regards,
>>     John
>>
>>
>> ------------------------------------------------------------------------------
>> Minimize network downtime and maximize team effectiveness.
>> Reduce network management and security costs.Learn how to hire
>> the most talented Cisco Certified professionals. Visit the
>> Employer Resources Portal
>> http://www.cisco.com/web/learning/employer_resources/index.html
>> _______________________________________________
>> wxlua-users mailing list
>> wxl...@li...
>> https://lists.sourceforge.net/lists/listinfo/wxlua-users
>>
>
>

Re: [wxlua-users] undefined reference to wxLuaState::Ok()

[andreas g. <agr...@go...>]

hi,
i did not use cmake. just configure and make. why cmake ? no clue.

i read install.html again and tried once again with configure-shell-script
in extra build directory. but now it still tells me that
wxcode_gtk2ud_stedit-2.8 could not be found. i have installed it twice,
once with prefix /usr/local (default) and again with prefix /usr
libwxcode_gtk2ud_stedit-2.8.so exists in /usr/lib and /usr/local/lib

i used wxlua-configure option --with-wxstedit-prefix=/usr/local
i tried to set env variable WXSTEDIT to wxstedit-include-path for both
prefix=/usr and /usr/local ( /usr/local/include/wx/stedit/ )
but could not succeed.


2013/4/8 John Labenski <jla...@gm...>

> On Sun, Apr 7, 2013 at 2:41 PM, andreas graeper <agr...@go...>
> wrote:
> >
> > g++
> >  -o ../bin/wxlua
> >  app_wxlua_lconsole.o
> >  app_wxlua_wxlua.o
> >
> ...
> > lconsole.cpp:(.text+0x53e): undefined reference to `wxLuaState::Ok()
> const'
> ...
> > libwxlua_gtk2u_wxlua-2.8.so:000000000001fc90 T _ZNK10wxLuaState2OkEv
> ...
> > symbol should be defined in libwxlua_gtk2u_wxlua-2.8.so ?!
>
> It should be and looks like it is. How did you build wxLua? Did you
> build wxLua libs and apps using the CMake build files?
>
> Regards,
>     John
>
>
> ------------------------------------------------------------------------------
> Minimize network downtime and maximize team effectiveness.
> Reduce network management and security costs.Learn how to hire
> the most talented Cisco Certified professionals. Visit the
> Employer Resources Portal
> http://www.cisco.com/web/learning/employer_resources/index.html
> _______________________________________________
> wxlua-users mailing list
> wxl...@li...
> https://lists.sourceforge.net/lists/listinfo/wxlua-users
>

Re: [wxlua-users] Asyncronous updates

[Javier Mr <jav...@ym...>]

Hi,

Thanks for your response. But, as i have understand, with that aproach i need to subclass wx (affordable) and connect my native app directly with wxWidgets; this is not desirable in my case since my app will mostly run in a terminal just with a text interface and in certain cases bring up the GUI. Doing that would imply that i have to compile against wxWidgets and also the i would have one dependency more in the proyect.

I finally solve the problem by doing pooling, my first approach was to use the wxEVT_IDLE event handler, but in that case that event only is triggered after a diferent one has been triggered (two idle events wont be triggered continuosly), i have read a workaround to that, but instead i have opted to make a wxTimer and refresh the GUI once or twice a second.

Just for reference a general idea of the architecture (imagine each column represents the life of a module):
-----------
| A   | B   |
|    1->     | C  
|     |    2->-------| D
|    5->    |  3 ->------|
|     |    6->    <-4    |
|     |       |------|-------|
--------------
 


Where A and B are two threads from the C++ app, A generates data and B is the thread where the Lua interpreter runs (C).
C is the Lua interpreter executed in the B thread. The Lua script loads wxLua (D). 

1, 2 and 3 are the order of creation of each component. Once all is up and running new data is generated (5), and procesed in the lua script (6), at the same time events from the interface (D) can also call the Luainterpreter (C).

By doing pooling with the timer the step 6 is done in the opposite direction, so no issues in accesing simultaneously from two threads to the lua state; while avoiding dependencies in the native code (if other interface is desired just changing the lua script will work).


A snipet if the code to solve the issue:
---------------------------------------

local frame = wx.wxFrame(wx.NULL, wx.wxID_ANY, "Example", wx.wxDefaultPosition, wx.wxSize(800, 600));
local timer = wx.wxTimer(frame);

frame:Connect(wx.wxEVT_CLOSE_WINDOW,    function ( event )
                                                                            print("Closing app");
                                                                            wx.wxGetApp():ExitMainLoop();
                                                                        end);

frame:Connect(wx.wxEVT_TIMER,   function ( event )
                                                        print("Timer event");
                                                    end);

timer:Start(1000);

frame:Show(true);

wx.wxGetApp():MainLoop();

----------------------------------------------

Anyway, thanks for the response.

Best regards.
Javi




>________________________________
> De: John Labenski <jla...@gm...>
>Para: Javier Mr <jav...@ym...>; wxl...@li... 
>Enviado: Martes 9 de abril de 2013 6:11
>Asunto: Re: [wxlua-users] Asyncronous updates
> 
>On Mon, Apr 8, 2013 at 7:23 AM, Javier Mr <jav...@ym...> wrote:
>> Hi,
>>
>> i'm getting a crash when running my app and i wonder if i'm doing it wrong.
>>
>> The situation is like this:
>> I have a native C++ application wich has a Lua interpreter embedded. This
>> embedded interpreter load a lua script that contains wxLua. The idea is, the
>> native code is multithraeded a modifies interal structures (protected with
>> mutex) and i want to observe that values so i load the lua script with
>> wxLua.
>
>This sounds reasonable.
>
>> I think my problem is that my native app do call the lua state to notify
>> that changes to the internal data have occur, and the same?¿ lua state is
>> called by wx as callbacks to the GUI events, could be this the reason for
>> crash? Is there a way to avoid this? Not ideal but would be OK to do pooling
>
>Neither Lua or wxWidgets/wxLua are threadsafe (way too much overhead).
>I believe it is possible, but I wouldn't recommend running the GUI in
>a single secondary thread, I would reserve the main thread for that.
>
>> in the MainLoop, so i could (every second for example) retrieve the new data
>> from the native side and update the GUI with the current data.
>
>You can use wxPostEvent() to asynchronously send a message from other
>threads to the GUI thread (though a wxWindow derived class perhaps)
>notifying them that there is new data to show. You can send any
>derived wxEvent class and wxEventType (wxEVT_COMMAND_ENTER) you like
>and use the ID to discriminate your event from anything else.
>Depending on the size of the data you could even put it into the
>wxString member of a wxCommandEvent.
>
>Regards,
>    John
>
>
>

Re: [wxlua-users] Asyncronous updates

[John L. <jla...@gm...>]

On Mon, Apr 8, 2013 at 7:23 AM, Javier Mr <jav...@ym...> wrote:
> Hi,
>
> i'm getting a crash when running my app and i wonder if i'm doing it wrong.
>
> The situation is like this:
> I have a native C++ application wich has a Lua interpreter embedded. This
> embedded interpreter load a lua script that contains wxLua. The idea is, the
> native code is multithraeded a modifies interal structures (protected with
> mutex) and i want to observe that values so i load the lua script with
> wxLua.

This sounds reasonable.

> I think my problem is that my native app do call the lua state to notify
> that changes to the internal data have occur, and the same?¿ lua state is
> called by wx as callbacks to the GUI events, could be this the reason for
> crash? Is there a way to avoid this? Not ideal but would be OK to do pooling

Neither Lua or wxWidgets/wxLua are threadsafe (way too much overhead).
I believe it is possible, but I wouldn't recommend running the GUI in
a single secondary thread, I would reserve the main thread for that.

> in the MainLoop, so i could (every second for example) retrieve the new data
> from the native side and update the GUI with the current data.

You can use wxPostEvent() to asynchronously send a message from other
threads to the GUI thread (though a wxWindow derived class perhaps)
notifying them that there is new data to show. You can send any
derived wxEvent class and wxEventType (wxEVT_COMMAND_ENTER) you like
and use the ID to discriminate your event from anything else.
Depending on the size of the data you could even put it into the
wxString member of a wxCommandEvent.

Regards,
    John

Re: [wxlua-users] compliling for 5.2

[Victor B. <so...@te...>]

Hello,

I told Benoit Germain and he changed Lanes in order to work with 
LUA_COMPAT_ALL

Everything is fine now

Best
Victor Bombi 

[wxlua-users] Asyncronous updates

[Javier Mr <jav...@ym...>]

Hi,

i'm getting a crash when running my app and i wonder if i'm doing it wrong.

The situation is like this:
I have a native C++ application wich has a Lua interpreter embedded. This embedded interpreter load a lua script that contains wxLua. The idea is, the native code is multithraeded a modifies interal structures (protected with mutex) and i want to observe that values so i load the lua script with wxLua. 


I think my problem is that my native app do call the lua state to notify that changes to the internal data have occur, and the same?¿ lua state is called by wx as callbacks to the GUI events, could be this the reason for crash? Is there a way to avoid this? Not ideal but would be OK to do pooling in the MainLoop, so i could (every second for example) retrieve the new data from the native side and update the GUI with the current data.

I hope i have been clear.
Thanks in advance.
Javier Monge.