%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2008-2016. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%%-------------------------------------------------------------------
%%% File : wxe_util.erl
%%% Author : Dan Gudmundsson <[email protected]>
%%% Description :
%%%
%%% Created : 9 Feb 2007 by Dan Gudmundsson <[email protected]>
%%%-------------------------------------------------------------------
%% @hidden
-module(wxe_util).
-export([call/2,cast/2,construct/2,
destroy/2, register_pid/1,
connect_cb/2,disconnect_cb/2,
send_bin/1, get_cbId/1,
get_const/1,colour_bin/1,datetime_bin/1,
to_bool/1,from_bool/1]).
-export([wxgl_dl/0, priv_dir/2, opt_error_log/3]).
-include("wxe.hrl").
to_bool(0) -> false;
to_bool(_) -> true.
from_bool(true) -> 1;
from_bool(false) -> 0.
colour_bin({R,G,B}) ->
<<R:32/?UI,G:32/?UI, B:32/?UI,255:32/?UI>>;
colour_bin({R,G,B,A}) ->
<<R:32/?UI,G:32/?UI, B:32/?UI,A:32/?UI>>.
datetime_bin({{Y,Mo,D},{H,Mi,S}}) ->
%% DMY fits wxDaytime constructor
%% Also wxDaytime:Month is enum from zero
<<D:32/?UI,(Mo-1):32/?UI,Y:32/?UI,H:32/?UI,Mi:32/?UI,S:32/?UI>>.
get_const(Id) ->
[{Id, Data}] = ets:lookup(wx_non_consts, Id),
Data.
cast(Op,Args) ->
#wx_env{port=Port,debug=Dbg} = wx:get_env(),
_ = erlang:port_control(Port,Op,Args),
case Dbg > 0 of
true -> debug_cast(Dbg band 15, Op,Args,Port);
false -> ok
end,
ok.
call(Op, Args) ->
#wx_env{port=Port,debug=Dbg} = wx:get_env(),
case Dbg > 0 of
false ->
_ = erlang:port_control(Port,Op,Args),
rec(Op);
true ->
debug_call(Dbg band 15, Op, Args, Port)
end.
rec(Op) ->
receive
{'_wxe_result_', Res} -> Res;
{'_wxe_error_', Op, Error} ->
[{_,MF}] = ets:lookup(wx_debug_info,Op),
erlang:error({Error, MF});
{'_wxe_error_', Old, Error} ->
[{_,{M,F,A}}] = ets:lookup(wx_debug_info,Old),
Msg = io_lib:format("~p in ~w:~w/~w", [Error, M, F, A]),
wxe_master ! {wxe_driver, error, Msg},
rec(Op)
end.
construct(Op, Args) ->
call(Op,Args).
destroy(Op, #wx_ref{ref=Ref}) ->
cast(Op,<<Ref:32/?UI>>).
register_pid(#wx_ref{ref=Ref}) ->
call(?WXE_REGISTER_OBJECT, <<Ref:32/?UI>>).
send_bin(Bin) when is_binary(Bin) ->
#wx_env{port=Port,debug=Dbg} = wx:get_env(),
case Dbg > 0 of
false ->
erlang:port_command(Port, Bin);
true ->
io:format("WX binary ~p(~p) ~n",[self(), Port]),
erlang:port_command(Port, Bin)
end.
get_cbId(Fun) ->
gen_server:call((wx:get_env())#wx_env.sv,{register_cb, Fun}, infinity).
connect_cb(Object,EvData0 = #evh{cb=Callback}) ->
Server = (wx:get_env())#wx_env.sv,
case Callback of
0 -> %% Message api connect from this process
case wxEvtHandler:connect_impl(Object,EvData0) of
{ok, Listener} ->
EvData = EvData0#evh{handler=Listener, userdata=undefined},
gen_server:call(Server, {connect_cb,Object,EvData}, infinity);
Error ->
Error
end;
_ -> %% callback, fun or pid (pid for wx_object:sync_events masked callbacks)
%% let the server do the connect
gen_server:call(Server, {connect_cb,Object,EvData0}, infinity)
end.
disconnect_cb(Object,EvData) ->
Server = (wx:get_env())#wx_env.sv,
{try_in_order, Handlers} =
gen_server:call(Server, {disconnect_cb,Object,EvData}, infinity),
disconnect(Object, Handlers).
disconnect(Object,[Ev|Evs]) ->
try wxEvtHandler:disconnect_impl(Object,Ev) of
true -> true;
false -> disconnect(Object, Evs);
Error -> Error
catch _:_ ->
false
end;
disconnect(_, []) -> false.
debug_cast(1, Op, _Args, _Port) ->
check_previous(),
case ets:lookup(wx_debug_info,Op) of
[{_,{M,F,_}}] ->
io:format("WX ~p: ~s:~s(~p) -> ok~n", [self(),M,F,Op]);
[] ->
io:format("WX ~p: unknown(~p) -> ok~n", [self(),Op])
end;
debug_cast(2, Op, Args, Port) ->
check_previous(),
case ets:lookup(wx_debug_info,Op) of
[{_,{M,F,_}}] ->
io:format("WX ~p(~p): ~s:~s(~p) (~p) -> ok~n",
[self(),Port,M,F,Op,Args]);
[] ->
io:format("WX ~p(~p): unknown(~p) (~p) -> ok~n",
[self(),Port,Op,Args])
end;
debug_cast(_, _Op, _Args, _Port) ->
check_previous(),
ok.
debug_call(1, Op, Args, Port) ->
check_previous(),
case ets:lookup(wx_debug_info,Op) of
[{_,{M,F,_}}] ->
io:format("WX ~p: ~s:~s(~p) -> ",[self(),M,F,Op]);
[] ->
io:format("WX ~p: unknown(~p) -> ",[self(),Op])
end,
_ = erlang:port_control(Port,Op,Args),
debug_rec(1);
debug_call(2, Op, Args, Port) ->
check_previous(),
case ets:lookup(wx_debug_info,Op) of
[{_,{M,F,_}}] ->
io:format("WX ~p(~p): ~s:~s(~p) (~p) -> ",
[self(), Port, M, F, Op, Args]);
[] ->
io:format("WX ~p(~p): unknown(~p) (~p) -> ",
[self(), Port, Op, Args])
end,
_ = erlang:port_control(Port,Op,Args),
debug_rec(2);
debug_call(_, Op, Args, Port) ->
check_previous(),
_ = erlang:port_control(Port,Op,Args),
rec(Op).
debug_rec(1) ->
receive
{'_wxe_result_', Res} ->
io:format("complete ~n", []),
Res;
{'_wxe_error_', Op2, Error} ->
[{_,MF2}] = ets:lookup(wx_debug_info,Op2),
erlang:error({Error, MF2})
end;
debug_rec(2) ->
receive
{'_wxe_result_', Res} ->
io:format("~p ~n", [Res]),
Res;
{'_wxe_error_', Op, Error} ->
io:format("Error ~p ~n", [Error]),
[{_,MF}] = ets:lookup(wx_debug_info,Op),
erlang:error({Error, MF})
end.
check_previous() ->
receive
{'_wxe_error_', Op, Error} ->
[{_,MF={M,F,_}}] = ets:lookup(wx_debug_info,Op),
io:format("WX ~p: ERROR in previous command ~s:~s~n",[self(), M,F]),
erlang:error({Error, MF})
after 0 -> ok
end.
%% Get gl dynamic library
wxgl_dl() ->
DynLib0 = "erl_gl",
PrivDir = priv_dir(DynLib0, false),
DynLib = case os:type() of
{win32,_} ->
DynLib0 ++ ".dll";
_ ->
DynLib0 ++ ".so"
end,
filename:join(PrivDir, DynLib).
priv_dir(Driver0, Silent) ->
{file, Path} = code:is_loaded(?MODULE),
Priv = case filelib:is_regular(Path) of
true ->
Beam = filename:join(["ebin/",atom_to_list(?MODULE) ++ ".beam"]),
filename:join(strip(Path, Beam), "priv");
false ->
code:priv_dir(wx)
end,
Driver = case os:type() of
{win32,_} ->
Driver0 ++ ".dll";
_ ->
Driver0 ++ ".so"
end,
case file:read_file_info(filename:join(Priv, Driver)) of
{ok, _} ->
Priv;
{error, _} ->
SrcPriv = filename:join(Priv, erlang:system_info(system_architecture)),
case file:read_file_info(filename:join(SrcPriv, Driver)) of
{ok, _} ->
SrcPriv;
{error, _} ->
opt_error_log(Silent,
"ERROR: Could not find \'~s\' in: ~s~n",
[Driver, Priv]),
erlang:error({load_driver, "No driver found"})
end
end.
strip(Src, Src) ->
[];
strip([H|R], Src) ->
[H| strip(R, Src)].
opt_error_log(false, Format, Args) ->
error_logger:format(Format, Args);
opt_error_log(true, _Format, _Args) ->
ok.
