wxlua-users Mailing List for wxLua

On Jan 5, 2008 1:57 PM, John Labenski <jla...@gm...> wrote:

> Yes it builds fine for me. I use the src of wxWidgets 2.8 from svn and
> this configure script.
>
> ../configure \
> --prefix=/home/john/wx/wxWidgets/wxWidgets_28/config_gtk2ud \
> --enable-optimise=no \
> --enable-debug=yes \
> --enable-debug_gdb=yes \
> --enable-mem_tracing=no \
> --enable-profile=no \
> --with-dmalloc=no \
> --enable-prologio=no \
> --enable-gtk2=yes \
> --enable-unicode=yes \
> --with-gnomeprint \
> --enable-mediactrl=yes \
> --with-opengl \
> --enable-graphics_ctx


I tried this and it doesn't work for me. I am obviously missing a package.
Are you using Ubuntu? If so what packages do you have installed? To build
wxLua this is what packages I installed:

   - mesa-common-dev
   - libglu1-mesa-dev
   - libwxbase2.8-0
   - libwxbase2.8-dev
   - libwxbase2.8-dbg
   - libwxgtk2.8-0
   - libwxgtk2.8-dev
   - libwxgtk2.8-dbg
   - wx-common
   - wx2.8-docs
   - wx2.8-headers

Check to see if you have these two libs
> libwx_gtk2ud_gl-2.8.so.0.3.0
> libwx_gtk2ud_media-2.8.so.0.3.0
>

I verified that I have them.

I think you can disable building the media and gl libs for wxLua using
> configure with
>  --enable-wxbindmedia=no  --enable-wxbindgl=no
> or edit modules/wxbind/setup/wxluasetup.h and set these
> #define wxLUA_USE_wxMediaCtrl                   0
> #define wxLUA_USE_wxGLCanvas                    0
>

I tried to configure with
  --enable-wxbindmedia=no  --enable-wxbindgl=no
but still no success.
-- 
Regards,
Ryan

On Jan 5, 2008 1:52 PM, Steve <sm...@gm...> wrote:

> Yes I did, hence the reason I replied.
> if your GL stuff is missing check your build settings and make sure
> --with-opengl (i think thats it anyways) is enabled.

I only ran exactly this command:
./configure && make

Is that the problem?


> Also check to make sure you do in fact have GL headers on your system
> in general.
> I had problems building the GL subsystem at one time a few years back
> because I didn't have OpenGL drivers (with sources or at least
> headers) installed on my computer.


I verified that I have the headers /usr/include/GL/gl.h/glu.h and such.

And for the record I'm using Gusty, so yes it builds, so check your
> build settings and make sure your deps are taken care of.
> Then do a make clean a ./configure --with-opengl and try to build again.


Will do. I am not specifying anything in the configure line.

It still didn't work. I also should mention that I get the wxWidgets apt
repository. I also verified that I have the media and gl wxWidgets
libraries. If you look at the command line it doesn't show any linking
against gl or media. Why? I choose to enable the gl using what you
suggested. I am not an expert on configure, and I know how to build
wxWidgets applications on Linux.
-- 
Regards,
Ryan

I am getting all kinds of errors when using the wxLua Lua module in Linux.
In the Terminal I see errors for sizing upon creation. Here are the errors I
get when running:

$ lua luamodule.wx.lua
>
> (<unknown>:30818): Gtk-CRITICAL **: gtk_window_resize: assertion `height >
> 0' failed
>

Here is what I am trying to achieve. I have a simple script that has a
frame, menu, and a button. I attached the script to this post so that
testing can be done. I need to use wxLua as a Lua module. I made a custom
build file to create it because the current method shipped with wxLua does
not work for me. I don't think that has anything to do with the problem, I
just thought I would mention it. I can successfully run the minimal and
veryminimal samples, but I see the same results when trying to run a more
complex example.

Here is a bit more information. It displays the frame as a very small frame
or as a VERY long titlebar only. It displays the errors in the terminal when
I run it. If I comment out the SetSizeHints() I get the frame to show up
correctly, but it only has the menu. I don't see the controls. This works on
Windows, but not on Linux. I hope I am doing something wrong.

Thanks

<script>
package.cpath =
";;./?.dll;./?.so;../lib/?.so;../lib/vc_dll/?.dll;../lib/bcc_dll/?.dll;../lib/mingw_dll/?.dll;"
require("wx")

-- simple test of Non GUI elements
p = wx.wxPoint(1,2)
print("The point is", p:GetX(), p:GetY())

frame = wx.wxFrame(wx.NULL, -1, "wxLua module sample")

-- create a simple file menu so you can exit the program nicely
local fileMenu = wx.wxMenu()
fileMenu:Append(wx.wxID_EXIT, "E&xit", "Quit the program")
local menuBar = wx.wxMenuBar()
menuBar:Append(fileMenu, "&File")
frame:SetMenuBar(menuBar)
frame:Connect(wx.wxID_EXIT, wx.wxEVT_COMMAND_MENU_SELECTED,
              function (event) frame:Close(true) end )

-- Layout all the buttons using wxSizers
local mainSizer = wx.wxBoxSizer( wx.wxVERTICAL )
local ID_BUTTON = 1001
local buildButton = wx.wxButton( frame, ID_BUTTON, "Button1" )
mainSizer:Add( buildButton, 0, wx.wxALL + wx.wxEXPAND, 5 )
frame:SetSizer( mainSizer )
mainSizer:SetSizeHints( frame )

frame:Show(true)

-- ALWAYS call wx.wxGetApp():MainLoop() last to keep the program active
-- otherwise the lua program will exit immediately
wx.wxGetApp():MainLoop()
</script>
-- 
Regards,
Ryan

On Jan 5, 2008 1:43 PM, Ryan Pusztai <rpu...@gm...> wrote:
> On Jan 4, 2008 5:54 PM, Steve <sm...@gm...> wrote:
>
> > You need to install the WX libs.
> >
> > sudo aptitude install libwxbase2.8-dev
>  It is already installed. You would have seen many other types of errors if
> that was not installed. If you look at the errors it is only for the media
> control and the OpenGL stuff. Can somebody confirm that they built wxLua CVS
> on Linux lately.
>
> John,
> Have you built wxLua on Linux lately?

Yes it builds fine for me. I use the src of wxWidgets 2.8 from svn and
this configure script.

../configure \
--prefix=/home/john/wx/wxWidgets/wxWidgets_28/config_gtk2ud \
--enable-optimise=no \
--enable-debug=yes \
--enable-debug_gdb=yes \
--enable-mem_tracing=no \
--enable-profile=no \
--with-dmalloc=no \
--enable-prologio=no \
--enable-gtk2=yes \
--enable-unicode=yes \
--with-gnomeprint \
--enable-mediactrl=yes \
--with-opengl \
--enable-graphics_ctx

Check to see if you have these two libs
libwx_gtk2ud_gl-2.8.so.0.3.0
libwx_gtk2ud_media-2.8.so.0.3.0

I think you can disable building the media and gl libs for wxLua using
configure with
 --enable-wxbindmedia=no  --enable-wxbindgl=no
or edit modules/wxbind/setup/wxluasetup.h and set these
#define wxLUA_USE_wxMediaCtrl                   0
#define wxLUA_USE_wxGLCanvas                    0

Hope this helps,
    John

Yes I did, hence the reason I replied.
if your GL stuff is missing check your build settings and make sure
--with-opengl (i think thats it anyways) is enabled.
Also check to make sure you do in fact have GL headers on your system
in general.
I had problems building the GL subsystem at one time a few years back
because I didn't have OpenGL drivers (with sources or at least
headers) installed on my computer.

And for the record I'm using Gusty, so yes it builds, so check your
build settings and make sure your deps are taken care of.
Then do a make clean a ./configure --with-opengl and try to build again.

Sincerely,
Steve

On Jan 5, 2008 11:43 AM, Ryan Pusztai <rpu...@gm...> wrote:
> On Jan 4, 2008 5:54 PM, Steve <sm...@gm...> wrote:
>
> > You need to install the WX libs.
> >
> > sudo aptitude install libwxbase2.8-dev
>  It is already installed. You would have seen many other types of errors if
> that was not installed. If you look at the errors it is only for the media
> control and the OpenGL stuff. Can somebody confirm that they built wxLua CVS
> on Linux lately.
>
> John,
> Have you built wxLua on Linux lately?
> --
> Regards,
> Ryan
> -------------------------------------------------------------------------
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>

On Jan 4, 2008 5:54 PM, Steve <sm...@gm...> wrote:

> You need to install the WX libs.
>
> sudo aptitude install libwxbase2.8-dev


It is already installed. You would have seen many other types of errors if
that was not installed. If you look at the errors it is only for the media
control and the OpenGL stuff. Can somebody confirm that they built wxLua CVS
on Linux lately.

John,
Have you built wxLua on Linux lately?
-- 
Regards,
Ryan

On Dec 31, 2007 7:44 PM, francisco leite <den...@ho...> wrote:
>
>  Hi,
>
> im traying to make a TaskBar Control, but im not understand some things
> and there are few examples of use, ... i tried some dumbs events and its
> give right such as Double_Right_Click event and show me a
> window...right, but i want a built-in menu like this:
> http://wiki.wxpython.org/AnotherTutorial?action=AttachFile&do=get&target=taskbaricon.png

This is pretty easy. I think the last binary version of wxLua had a
little problem with the wxTaskBarIcon, but it's fixed now in CVS.

The code below shows the wxTaskBarIcon and pops up a menu when clicked.

------------------------------------
ID_CLICK = 5
ID_CHECK = 6

taskbarIcon = wx.wxTaskBarIcon()
local icon = wx.wxIcon()
local bmp = wx.wxArtProvider.GetBitmap(wx.wxART_INFORMATION,
wx.wxART_TOOLBAR, wx.wxSize(16, 16))
icon:CopyFromBitmap(bmp)
taskbarIcon:SetIcon(icon, "Tooltop for wxTaskBarIcon from controls.wx.lua")
icon:delete()
bmp:delete()

taskbarMenu = wx.wxMenu()
taskbarMenu:Append(ID_CLICK, "Click me", "Please click this", wx.wxITEM_NORMAL)
taskbarMenu:Append(ID_CHECK, "Check me", "Please check this", wx.wxITEM_CHECK)

taskbarIcon:Connect(wx.wxEVT_TASKBAR_LEFT_UP,
    function(event)
        taskbarIcon:PopupMenu(taskbarMenu)
    end)

taskbarIcon:Connect(wx.wxID_ANY, wx.wxEVT_COMMAND_MENU_SELECTED,
    function(event)
        print("Menu item with id = "..tostring(event:GetId()).." was clicked")
    end)
------------------------------------

> that i saw on this site:
> http://wiki.wxpython.org/AnotherTutorial
> So Python is a OO based and Lua is Meta-Based!...it fries my mind
> I Know that you can help me!...Please, if possible post a simple and
> quite example

Lua can be OO if you create a class type using a table and setting
it's metatable. See the Lua wiki for some examples. I think the book
"Programming in Lua" (PIL) has an example, the first version of this
book is on-line.

I just checked in a fix for what may be a similar error. The

On Jan 3, 2008 9:35 AM, Klaas Holwerda <db...@nl...> wrote:
> Hi John,
>
> I did all you suggested, but the problem is, it does not fail where you expect
> it. This does not mean that the error is not created where you think.
>
> With this here added as you suggested, the output is as i expected.
>
>      wxLogDebug(wxT("pushuserdatatype1 %p %p pushing %p type %d\n"),
> a2dLuaWP, a2dMaskProc, obj_ptr, wxl_type);
>
>          if (wxluaO_istrackedweakobject(L, (void*)obj_ptr, wxl_type, true))
>              return true;
>
>    wxLogDebug(wxT("pushuserdatatype2 %p %p pushing %p type %d\n"),
> a2dLuaWP, a2dMaskProc, obj_ptr, wxl_type);
>
> ========= OUTPUT ===============
>
> 14:43:47: pushuserdatatype1 020062B0 020062B0 pushing 020062B0 type 426
>
> 14:43:47: pushuserdatatype2 020062B0 020062B0 pushing 020062B0 type 426
>
> 14:44:21: pushuserdatatype1 020062B0 020062B0 pushing 020062B0 type 429
>
> 14:44:21: pushuserdatatype2 020062B0 020062B0 pushing 020062B0 type 429
>
> First-chance exception in maskproc.exe: 0xC0000005: Access Violation.
> First-chance exception in maskproc.exe (KERNEL32.DLL): 0xE06D7363: Microsoft C++
> Exception.
>
> Here the second time the same pointer is pushed, i get the exception with the
> stack dump at the end of this mail. From the output it is clear I do not have a
> tracked object/pointer, because in both cases false is returned.

It is normal that it can't find the object when you're registering the
bindings since it's being push for the first time. The whole idea
behind the check for wxluaO_istrackedweakobject() is that we don't
want to create multiple Lua userdata wrapping our C++ object, but push
the same one again. However, just like in C++ the object can be cast
to different types and wxLua must create new userdata for each type to
distinguish them (for wxObject::DynamicCast()).

> Now the second time the same pointer is pushed, it follows a different path in
> this function here, but in both cases the return is false. But the first time
> it skips the "if (lua_istable(L, -1))" part, while the second it goes in there,
> but the "if (wxlua_iswxuserdata(L, -1) && (wxl_type == wxluaT_type(L, -1)))"part
> is skipped.

Exactly, the second time through it finds that the object was already
pushed, but with a different type so as far as wxLua is concerned,
it's not what we want and returns false.

> ===============Stack ================
>
> luaO_rawequalObj(const lua_TValue * 0x4d6584b1, const lua_TValue * 0x02006608)
> line 73 + 6 bytes
> luaH_get(Table * 0x02174b60, const lua_TValue * 0x02006608) line 484 + 16 bytes
> luaH_set(lua_State * 0x02006318, Table * 0x02174b60, const lua_TValue *
> 0x02006608) line 495 + 13 bytes
> lua_rawset(lua_State * 0x02006318, int -3) line 673 + 37 bytes

??? What happens here?

wxLuaBinding::DoRegisterBinding
...
    if (wxlObject->objPtr != 0)
        wxluaT_pushuserdatatype(L, wxlObject->objPtr,
*wxlObject->wxluatype, true);

then

bool LUACALL wxluaT_pushuserdatatype
...
            if (wxluaR_getref(L, wxl_type, &wxlua_lreg_types_key))
            {
                // pop the table and set it as the metatable for the newuserdata
                lua_setmetatable(L, -2);

                if (track)
                    wxluaO_trackweakobject(L, -1, (void*)obj_ptr, wxl_type);

                return true; // leave value on the stack
            }

Does it crash in wxluaO_trackweakobject() or wxluaR_getref()?

> wxLuaBinding::DoRegisterBinding(const wxLuaState & {...}, int 1) line 1191 + 11
> bytes
> wxLuaBinding::RegisterBinding(const wxLuaState & {...}) line 985
> wxLuaState::RegisterBindings() line 2687 + 17 bytes
> wxLuaState::Create(lua_State * 0x02006318, int 2) line 2221

Thanks,
    John