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