[wxlua-users] recursive calls runbuffer

[klaas.holwerda <ng...@kl...>]

Hi,

Recursive calls to RunBuffer() is a problem, gives an assert.

int wxLuaState::RunBuffer(const char buf[], size_t size, const wxString &name, int nresults)
{
     wxCHECK_MSG(Ok(), LUA_ERRRUN, wxT("Invalid wxLuaState"));
     wxCHECK_MSG(!M_WXLSTATEDATA->m_wxlStateData->m_is_running, LUA_ERRRUN, wxT("Lua interpreter is 
already running"));

Maybe a solution could be to make m_running an integer, which is incremented and decremented, as 
long as > 1, interpreter is running.
But maybe it should be done different, still I would like to use the same wxlua state.

Recursive happens in lua scripts which define functions to be used inside canvas objects, and are 
run there using:

         wxLuaState lst = a2dLuaWP->GetLuaState();
         lua_State* L = lst.GetLuaState();
         if ( 0 != lst.RunString( m_script ) )

The function is defined like this in the wxLua script.

     TheObjectAddScript_2 =
     [[
         function XoverX( canobj, x, y, args )
             fill = wx.a2dFill( args.Colour )

             local childs = canobj:CreateChildObjectList()
             canobjcirc2 = wx.a2dCircle( 0, 0, 20 )
             childs:push_back( canobjcirc2 )
             for i = -args.maxX, args.maxX do
                 local y2
                 if  i ~= 0  then
                     y2 = -args.maxY*math.sin(i/16)/(i/16)
                 else
                     y2 = -args.maxY; --sin(x)/x goes to one at zero
                 end
                 -- all relative
                 line = wx.a2dRect( i, 0, 0.1, y2 )
                 line:SetFill( fill )
                 childs:push_back( line )
             end
         end
     ]]

-- add the object using the above string as input script
canobjAddScript2 = wx.a2dCanvasObjectLua( 350, -450, TheObjectAddScript_2, "XoverX"  )

Regards,

Klaas