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wings_msg.erl
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wings_msg.erl
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%%
%% wings_msg.erl --
%%
%% Helpers for formatting and showing messages.
%%
%% Copyright (c) 2001-2011 Bjorn Gustavsson
%%
%% See the file "license.terms" for information on usage and redistribution
%% of this file, and for a DISCLAIMER OF ALL WARRANTIES.
%%
%% $Id$
%%
-module(wings_msg).
-export([button/1,button/2,button/3,
button_format/1,button_format/2,button_format/3,
rmb_format/1,join/1,join/2,
free_modifier/0,free_lmb_modifier/0,additional_free_lmb_modifier/0,
free_rmb_modifier/0,mod_name/1,mod_format/3]).
-define(NEED_ESDL, 1).
-include("wings.hrl").
-import(lists, [reverse/1]).
-define(SEP, [160,160,160,160,160]). %Equivalent to two and a half space character width.
-define(CSEP, 160). %Short space.
button(LmbMsg) ->
wings_wm:message(button_format(LmbMsg)).
button(LmbMsg, MmbMsg) ->
wings_wm:message(button_format(LmbMsg, MmbMsg)).
button(LmbMsg, MmbMsg, RmbMsg) ->
wings_wm:message(button_format(LmbMsg, MmbMsg, RmbMsg)).
button_format(LmbMsg) ->
[lmb_name(),?CSEP|LmbMsg].
button_format(LmbMsg, MmbMsg) ->
button_format(LmbMsg, MmbMsg, []).
button_format(Msg, [], Msg) when Msg =/= [] ->
Buttons = wings_pref:get_value(num_buttons),
Lmb = drop_last(lmb_name()),
Rmb = rmb_name(Buttons),
[Lmb,$,,Rmb,?CSEP|Msg];
button_format(LmbMsg, Msg, Msg) when Msg =/= [] ->
Buttons = wings_pref:get_value(num_buttons),
Lmb = lmb_name(),
Mmb = drop_last(mmb_name(Buttons)),
Rmb = rmb_name(Buttons),
Lmsg = if
LmbMsg =/= [] -> [Lmb,?CSEP|LmbMsg];
true -> []
end,
RMmsg = [Mmb,$,,Rmb,?CSEP|Msg],
join(Lmsg, RMmsg);
button_format(LmbMsg, MmbMsg, RmbMsg) ->
Buttons = wings_pref:get_value(num_buttons),
Lmb = lmb_name(),
Mmb = mmb_name(Buttons),
Rmb = rmb_name(Buttons),
Lmsg = if
LmbMsg =/= [] -> [Lmb,?CSEP|LmbMsg];
true -> []
end,
Mmsg = if
MmbMsg =/= [] -> [Mmb,?CSEP|MmbMsg];
true -> []
end,
Rmsg = if
RmbMsg =/= [] -> [Rmb,?CSEP|RmbMsg];
true -> []
end,
join(Lmsg, join(Mmsg, Rmsg)).
join([M0,M1|T]) ->
join(join(M0, M1), join(T));
join([M]) -> M;
join([]) -> [].
join([], Msg) -> Msg;
join(Msg, []) -> Msg;
join(Msg1, Msg2) -> [Msg1,?SEP,Msg2].
rmb_format(Message) ->
ModName = mod_name(free_rmb_modifier()),
[ModName,$+,rmb_name(),?CSEP|Message].
free_modifier() ->
case wings_pref:get_value(num_buttons) of
1 -> ?META_BITS;
_ -> ?CTRL_BITS
end.
free_lmb_modifier() ->
case wings_pref:get_value(camera_mode) of
maya -> ?CTRL_BITS;
blender -> ?CTRL_BITS;
nendo ->
case wings_pref:get_value(num_buttons) of
1 -> ?META_BITS;
_ -> ?ALT_BITS
end;
_ -> ?ALT_BITS
end.
additional_free_lmb_modifier() ->
case wings_pref:get_value(camera_mode) of
mb -> none;
_ -> ?SHIFT_BITS
end.
free_rmb_modifier() ->
case wings_pref:get_value(camera_mode) of
maya -> ?CTRL_BITS;
nendo ->
case wings_pref:get_value(num_buttons) of
1 -> ?META_BITS;
_ -> ?ALT_BITS
end;
_ -> ?ALT_BITS
end.
mod_format(Mod, 1, Msg) ->
mod_format(Mod, lmb_name(), Msg);
mod_format(Mod, 2, Msg) ->
mod_format(Mod, mmb_name(), Msg);
mod_format(Mod, 3, Msg) ->
mod_format(Mod, rmb_name(), Msg);
mod_format(0, But, Msg) ->
[But,?CSEP,Msg];
mod_format(Mod, But, Msg) ->
M0 = [But,?CSEP,Msg],
M1 = if
(Mod band ?SHIFT_BITS) =/= 0 ->
[wings_s:key(shift),$+|M0];
true -> M0
end,
M2 = if
(Mod band ?ALT_BITS) =/= 0 ->
[wings_s:key(alt),$+|M1];
true -> M1
end,
M3 = if
(Mod band ?CTRL_BITS) =/= 0 ->
[wings_s:key(ctrl),$+|M2];
true -> M2
end,
if
(Mod band ?META_BITS) =/= 0 ->
[wings_s:key(command),$+|M3];
true -> M3
end.
mod_name(?ALT_BITS) -> wings_s:key(alt);
mod_name(?CTRL_BITS) -> wings_s:key(ctrl);
mod_name(?META_BITS) -> wings_s:key(command).
%%%
%%% Local functions.
%%%
drop_last(S) ->
reverse(tl(reverse(S))).
lmb_name() -> [wings_s:lmb()|":"].
mmb_name() ->
mmb_name(wings_pref:get_value(num_buttons)).
mmb_name(3) -> [wings_s:mmb()|":"];
mmb_name(2) ->
case wings_pref:get_value(camera_mode) of
blender -> [wings_s:key(alt),$+|lmb_name()];
nendo -> [wings_s:key(ctrl),$+|rmb_name(2)]
end;
mmb_name(1) -> [wings_s:key(alt),$+|lmb_name()].
rmb_name() ->
rmb_name(wings_pref:get_value(num_buttons)).
rmb_name(1) -> [wings_s:key(ctrl),$+,lmb_name()];
rmb_name(_) -> [wings_s:rmb()|":"].