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------------------------------------------------------------------------------
-- Template to create control classes for IupLua5
-- The Lua module is used by the "generator.lua" to build a C module,
-- and loaded during iuplua_open to initialize the control.
------------------------------------------------------------------------------
local ctrl = {
nick = "mycontrol", -- name of the control, used in the control creation: iup.mycontrol{}
-- also used for the generated C module
parent = WIDGET, -- used to define a few methods used fro creation and set attribute
creation = "nn", -- the creation parameters in Lua
-- "n" = int
-- "d" = double
-- "s" = char*
-- "S" = optional char*, can be nil
-- "i" = Ihandle*
-- "-" = NULL, no parameters in Lua, but a NULL parameter in C
-- "a" = char* array in a table
-- "t" = int array in a table
-- "v" = Ihandle* array in a table
funcname = "myControl", -- [optional] name of the function used in C
-- default is ctrl.nick with first letter uppercase
callback = { -- partial list of callbacks
-- only the callbacks that are not already defined by other controls needs to be defined
action = "ff",
button_cb = "nnnns",
enterwindow_cb = "",
leavewindow_cb = "",
motion_cb = "nns",
resize_cb = "nn",
scroll_cb = "nff",
keypress_cb = "nn",
wom_cb = "n",
wheel_cb = "fnns",
mdiactivate_cb = "",
focus_cb = "n",
value_cb = {"nn", ret = "s"}, -- ret is return type, default is n ("int")
-- the following types can be used for callback parameters:
-- n = "int",
-- s = "char *",
-- i = "Ihandle *",
-- c = "unsigned char ",
-- d = "double",
-- f = "float",
-- v = "Ihandle **",
--
-- Other parameters must be implemented in C using the extrafuncs module
-- IMPORTANT: callbacks with the same name in different controls
-- are assumed to have the same parameters, that's why they are defined only once
-- When callbacks conflict using the same name, but different parameters
-- generator.lua must be edited to include the callback in the list of conflicting callbacks
-- "action" is a common callback that conflicts
-- In the callback list, just declare the callback with the parameters used in that control.
}
include = "iupmycontrol.h", -- [optional] header to be included, it is where the creation function is declared.
extrafuncs = 1, -- [optional] additional module in C called by the initialization function
createfunc = [[ -- [optional] creation function in C,
-- used if creation parameters needs some interpretation in C
-- not to be used together with funcname
#include<stdlib.h>
static int myControl (lua_State * L)
{
xxxx;
yyyy;
return 1;
}
]]
extracode = [[ -- [optional] extra fucntions to be defined in C.
int luaopen_iupluamycontrol51(lua_State* L)
{
return iupmycontrollua_open(L);
}
]]
}
-- must be defined so the WIDGET constructor can call it
function ctrl.createElement(class, arg)
return myControl()
end
-- here you can add some custom methods to the class
function ctrl.popup(handle, x, y)
Popup(handle,x,y)
end
iupRegisterWidget(ctrl) -- will make iup.mycontrol available
iupSetClass(ctrl, "iup widget") -- register the class in the registry
|
