gs: Remove the contribs directory

Some of the games no longer work. For example, when calling
cols:start/0, there will be a 'badfun' exception because of
an attempt to apply a tuple fun.

There are also calls to the deprecated now/0 function and to
the deprecated 'random' module.

Since the entire gs application is deprecated and scheduled
to be removed any release now, there is no need to keep the
contribs directory.

1 files changed, 0 insertions, 351 deletions

diff --git a/lib/gs/contribs/mandel/mandel.erl b/lib/gs/contribs/mandel/mandel.erl
deleted file mode 100644
index e6061ba77d..0000000000
--- a/lib/gs/contribs/mandel/mandel.erl
+++ /dev/null
@@ -1,351 +0,0 @@
-%%
-%% %CopyrightBegin%
-%% 
-%% Copyright Ericsson AB 1996-2013. 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%
-%%
-
--module(mandel).
--compile([{nowarn_deprecated_function,{gs,assq,2}},
-          {nowarn_deprecated_function,{gs,config,2}},
-          {nowarn_deprecated_function,{gs,create,4}},
-          {nowarn_deprecated_function,{gs,image,2}},
-          {nowarn_deprecated_function,{gs,start,0}}]).
--author('(mbj,eklas)@erlang.ericsson.se').
-
-%% User's interface
--export([start/0,start/1]).
-
-%% Internal exports:
--export([start_client/2,refresher/1,start_server/1,respond/2]).
-
-%%%-----------------------------------------------------------------
-%%% Distributed Mandelbrot program.
-%%% Originally written i C++/rpc/lwp/interviews by Klas Eriksson.(1200 lines)
-%%% Rewritten in Erlang by Klas Eriksson and Martin Björklund.
-%%%-----------------------------------------------------------------
-
-%% unix>erl -sname foo            (all nodes will get the same name)
-%% (foo@data)1>mandel:start([{hosts,["computer1","computer2"]},{window,400}]).
-
-%% unix>erl
-%% 1> mandel:start().
-
--record(state,{image,width,height,xmax,ymax,range,
-	       maxiter,colortable,zoomstep}).
--record(job,{left,right,ymin,ymax,height,width,maxiter,data=[]}).
--define(JOBWIDTH,10).
-
-%%-----------------------------------------------------------------
-%% This is the client start function.
-%%-----------------------------------------------------------------
-start() ->
-    start([]).
-
-%%----------------------------------------------------------------------
-%% Option is list of Option. Option is:
-%% {xmax,float()}|{ymax,float()}|{range,float()}|
-%% {maxiter,integer()}|{window,integer()}|{zoomstep,float()}|
-%% {hosts,(list of string())|all_found_nodes}
-%%----------------------------------------------------------------------
-start(Opts) ->
-    Nodes1 = nodes(),
-    Nodes = case get_option(hosts,Opts,all_found_nodes) of
-		all_found_nodes when Nodes1 == [] ->
-		    N = [node()],
-		    spawn(mandel,start_server,[N]),
-		    N;
-		all_found_nodes ->
-		    start_nodes(dir(),Nodes1),
-		    Nodes1;
-		Hosts ->
-		    start_slaves(Hosts),
-		    start_nodes(dir(),Nodes1),
-		    Nodes1
-	    end,
-    spawn(mandel,start_client,[Opts,Nodes]).
-    
-%% This is not an application so we don't have their way of knowing
-%% a private data directory where the GIF files are located (this directory).
-%% We can find GS and makes it relative from there /kgb
-
--define(EbinFromGsPriv,"../contribs/ebin").
-
-dir()->
-    GsPrivDir = code:priv_dir(gs),
-    filename:join(GsPrivDir,?EbinFromGsPriv).
-
-
-start_slaves([]) -> ok;
-start_slaves([Host|Hs]) ->
-    {ok,Name}=slave:start(Host),
-    io:format("host ~p is up~n", [Name]),
-    start_slaves(Hs).
-
-start_nodes(_Dir,[]) -> ok;
-start_nodes(Dir,[Node|Nodes]) ->
-    rpc:call(Node,code,add_path,[Dir]), % hack? should be done in .erlang
-    spawn_link(Node,mandel,start_server,[[node()]]),
-    io:format("started mandelserver at node: ~p~n", [Node]),
-    start_nodes(Dir,Nodes).
-
-start_client(Opts,Nodes) ->
-    Wt = get_option(window,Opts,100) div ?JOBWIDTH * ?JOBWIDTH,
-    Ht = get_option(window,Opts,100) div ?JOBWIDTH * ?JOBWIDTH,
-    S=gs:start(),
-    Win=gs:create(window,win1,S,[{title,"Mandel"},{width,Wt-1},{height,Ht-1},
-				{configure,true}]),
-    Canvas=gs:create(canvas,can1,Win,[{width,Wt},{height,Ht}]),
-    Image=gs:image(Canvas,[{buttonpress,true}]),
-    MaxIters = get_option(maxiter,Opts,100),
-    timer:apply_after(8000,mandel,refresher,[Image]),
-    CT = make_color_table(MaxIters),
-    State2=#state{image=Image,width=Wt,height=Ht,
-		  xmax=try_random(get_option(xmax,Opts,2),-2,2),
-		  ymax=try_random(get_option(ymax,Opts,2),-2,2),
-		  range=try_random(get_option(range,Opts,4),0,4),
-		  maxiter=MaxIters,colortable=CT,
-		  zoomstep=get_option(zoomstep,Opts,1.7)},
-    ToDo = make_jobs(State2),
-    gs:config(Win,[{map,true}]),
-    main(State2, [], Nodes, ToDo).
-
-try_random(random,Low,High) ->
-    random:uniform()*(High-Low)+Low;
-try_random(Float,_Low,_High) when is_number(Float) -> Float.
-    
-
-%%-----------------------------------------------------------------
-%% Distribute work to the nodes. When a node returns, that
-%% node is the first to be used if there's any job left.
-%%-----------------------------------------------------------------
-main(State, [], PassiveNodes, []) ->
-    wait_event(State,[],PassiveNodes,[]);
-main(State, ActiveNodes, PassiveNodes, []) ->
-    % No jobs left, but some nodes are still active.
-    % Wait_Event for their results
-    wait_event(State,ActiveNodes,PassiveNodes,[]);
-main(State, ActiveNodes, [Node|PassiveNodes], [Job|ToDo]) ->
-    % We have work to do, and at least one passive node.
-    % Let him do it.
-    distribute_job(Node, Job),
-    main(State, [Node|ActiveNodes], PassiveNodes, ToDo);
-main(State, ActiveNodes, [], ToDo) ->
-    % We have work to do, but all nodes are active.
-    _Node = wait_event(State,ActiveNodes,[],ToDo).
-    
-wait_event(State,ActiveNodes,PassiveNodes,ToDo) ->
-    receive
-	{calculation_done, {Node, Job}} ->
-	    if   % a small hack. we want to discard data for old pictures
-		Job#job.ymax==State#state.ymax ->
-		    draw(State, Node, Job);
-		true -> true
-	    end,
-	    main(State,lists:delete(Node,ActiveNodes),[Node|PassiveNodes],ToDo);
-	{gs,_Img,buttonpress,_Data,[_Butt,X,Y|_]} ->
-	    #state{width=W,height=H,ymax=Ymax,xmax=Xmax,range=R,zoomstep=ZS} =
-		State,
-	    RX = Xmax-R+(X/W)*R,
-	    RY = Ymax-R+(1-(Y/H))*R,
-	    R2 = R/ZS,
-	    Xmax2 = RX + R2/2,
-	    Ymax2 = RY + R2/2,
-	    State2 = State#state{xmax=Xmax2,ymax=Ymax2,range=R2},
-	    io:format("{xmax,~w},{ymax,~w},{range,~w}~n", [Xmax2,Ymax2,R2]),
-	    ToDo2=make_jobs(State2),
-	    main(State2,ActiveNodes,PassiveNodes,ToDo2);
-	{gs,_Win,destroy,_,_} ->
-	    kill_nodes(lists:append(ActiveNodes,PassiveNodes));
-	{gs,_Win,configure,_Data,[W,H|_]}
-	when State#state.width==W+1, State#state.height==H+1->
-	    main(State,ActiveNodes,PassiveNodes,ToDo);
-	{gs,_Win,configure,_Data,[W|_]} ->
-	    gs:config(can1,[{width,W},{height,W}]),
-	    gs:config(win1,{configure,false}),
-	    gs:config(win1,[{width,W-1},{height,W-1}]),
-	    gs:config(win1,{configure,true}),
-	    State2 = State#state{width=W,height=W},
-	    ToDo2=make_jobs(State2),
-	    main(State2,ActiveNodes,PassiveNodes,ToDo2)
-    end.
-
-kill_nodes([]) ->
-    done;
-kill_nodes([Node|Nodes]) ->
-    exit(rpc:call(Node,erlang,whereis,[mandel_server]),kill),
-    kill_nodes(Nodes).
-    
-
-distribute_job(Node, Job) ->
-    {mandel_server, Node} ! {mandel_job, {self(), Job}}.
-
-draw(#state{image=Image, width=Wt, height=Ht, xmax=Xmax,
-		maxiter=MI,colortable=ColorTable,range=R}, Node, Job) ->
-    #job{left=Left,data=Data}=Job,
-    io:format("Got data from node ~30w~n", [Node]),
-%% PixelX = K * RealX + M
-%% 0      = K * Xmin  + M
-%% Width-1= K * Xmax  + M
-    K=(1-Wt)/-R,
-    M=Wt-1-K*Xmax,
-    Xbegin = round(Left*K+M),
-    draw_cols(Image, Xbegin, Ht, lists:reverse(Data),MI,ColorTable).
-
-draw_cols(Image, X, Ht, [H|T],MaxIter,ColorTable) ->
-    draw_col(Image, X, 0, H,MaxIter,ColorTable),
-    draw_cols(Image, X+1, Ht, T,MaxIter,ColorTable);
-draw_cols(_Image, _X, _, [],_MaxIter,_ColorTable) ->
-    done.
-
-draw_col(_Image, _X,_Y,[{no_first_color,0}],_MaxIter,_ColorTable) ->
-    done;
-draw_col(Image, X,Y,[{Color,1}|T],MaxIter,ColorTable) ->
-    gs:config(Image,[{pix_val,{{X,Y},
-			       element(Color+1,ColorTable)}}]),
-    draw_col(Image, X,Y+1,T,MaxIter,ColorTable);
-draw_col(Image, X,Y,[{Color,Height}|T],MaxIter,ColorTable) ->
-    gs:config(Image,[{pix_val,{{{X,Y},{X+1,Y+Height}},
-			       element(Color+1,ColorTable)}}]),
-    draw_col(Image, X,Y+Height,T,MaxIter,ColorTable).
-
-make_jobs(#state{width=W,height=H,range=R,
-		 xmax=Xmax,ymax=Ymax,maxiter=MI}) ->
-    make_jobs(Xmax-R,Xmax,Ymax-R,Ymax,H,W,MI).
-
-make_jobs(Xmin,Xmax,Ymin,Ymax,Ht,Wt,MaxIter) ->
-    NoJobs = Wt/?JOBWIDTH,  % Each job is ?JOBWIDTH pixel-col
-    DX = (Xmax - Xmin)/NoJobs,
-    make_jobs(DX,Xmin,Xmax,#job{ymin=Ymin,ymax=Ymax,height=Ht,width=Wt/NoJobs,
-				  maxiter=MaxIter},[]).
-
-make_jobs(DX,Left,Xmax,JobSkel,Res) when Left =< Xmax ->
-    Right = Left + DX,
-    Job = JobSkel#job{left=Left,right=Right},
-    make_jobs(DX,Right,Xmax,JobSkel,[Job | Res]);
-make_jobs(_DX,_Left,_Xmax,_JobSkel,Res)  -> Res.
-    
-%%----------------------------------------------------------------------
-%% A small process that refreshes the screen now and then.
-%%----------------------------------------------------------------------
-refresher(Image) ->
-    gs:config(Image,flush),
-    timer:apply_after(8000,mandel,refresher,[Image]).
-
-%%-----------------------------------------------------------------
-%% This is the server start function.
-%%-----------------------------------------------------------------
-start_server([ClientNode]) ->
-    register(mandel_server, self()),
-    erlang:monitor_node(ClientNode, true),
-    server_loop().
-
-server_loop() ->
-    receive
-	{mandel_job, {Pid, Job}} ->
-	    spawn_link(mandel, respond, [Pid, Job]),
-	    server_loop()
-    end.
-    
-respond(Pid, Job) ->
-    Data = do_job(Job),
-    Pid ! {calculation_done, {node(), Data}}.
-
-do_job(Job) ->
-    calculate_area(Job).
-
-calculate_area(Job) ->
-    #job{ymin=Ymin,ymax=Ymax,height=Ht,width=Wt,left=Xmin,right=Xmax}=Job,
-    Job#job{data=x_loop(0,[],Wt,(Xmax-Xmin)/Wt,(Ymax-Ymin)/Ht,Xmin,Job)}.
-
-x_loop(IX,Res,Wt,Dx,Dy,X,Job) when IX < Wt ->
-    #job{ymin=Ymin,height=Ht,maxiter=MaxIter}=Job,
-    Cols = y_loop(0,Ht,[],MaxIter,Dy,X,Ymin,no_first_color,0),
-    x_loop(IX+1,[Cols|Res],Wt,Dx,Dy,X+Dx,Job);
-x_loop(_,Res,_,_,_,_,_) ->
-    Res.
-
-y_loop(IY,Ht,Res,MaxIter,Dy,X,Y,PrevColor,NprevColor) when IY < Ht -> 
-    Color = color_loop(1,MaxIter,0,0,0,0,X,Y),
-    if
-	Color == PrevColor ->
-	    y_loop(IY+1,Ht,Res,MaxIter,Dy,X,Y+Dy,PrevColor,NprevColor+1);
-	true ->
-	    y_loop(IY+1,Ht,[{PrevColor,NprevColor}|Res],MaxIter,
-		   Dy,X,Y+Dy,Color,1)
-    end;
-
-y_loop(_,_,Res,_,_,_,_,PC,N) -> 
-    [{PC,N}|Res].
-
-color_loop(Color,MaxIter,Za,Zb,Za2,Zb2,X,Y) 
-            when Za2 + Zb2 < 4, Color < MaxIter->
-    Ztmp = Za2 - Zb2 + X,
-    ZbN = 2 * Za * Zb + Y,
-    color_loop(Color+1,MaxIter,Ztmp,ZbN,Ztmp * Ztmp,ZbN * ZbN,X,Y);
-color_loop(MaxIter,MaxIter,_Za,_Zb,_Za2,_Zb2,_X,_Y) ->
-    0; % black
-color_loop(Color,_,_,_,_,_,_,_) ->
-    Color.
-
-%%----------------------------------------------------------------------
-%% The "colormodel".
-%%----------------------------------------------------------------------
-make_color_table(MaxColors) ->
-    list_to_tuple([{0,0,0}|colors(MaxColors)]).
-
-colors(Ncolors) ->
-    {A,B,C}=erlang:now(),
-    random:seed(A,B,C),
-    Colors = random_colors(Ncolors),
-    Colors2 = best_insert([hd(Colors)],tl(Colors)),
-    Colors2.
-
-random_colors(0) -> [];
-random_colors(N) ->
-    R = random:uniform(256)-1,
-    G = random:uniform(256)-1,
-    B = random:uniform(256)-1,
-   [{R,G,B}|random_colors(N-1)].
-
-best_insert(Sorted,[RGB|Unsorted]) ->
-    best_insert(insert_at(best_pos(RGB,Sorted),RGB,Sorted),Unsorted);
-best_insert(Sorted,[]) -> Sorted.
-
-insert_at(1,Elem,L) -> [Elem|L];
-insert_at(N,Elem,[H|T]) -> [H|insert_at(N-1,Elem,T)].
-
-best_pos(RGB, Sorted) ->
-    D = distances(RGB,Sorted),
-    pos_for_smallest_distance(D,1,1000,-1).
-
-pos_for_smallest_distance([],_CurPos,_SmallestDist,Pos) -> Pos;
-pos_for_smallest_distance([Dist|T],CurPos,SmallDist,_Pos)
- when Dist < SmallDist ->
-    pos_for_smallest_distance(T,CurPos+1,Dist,CurPos);
-pos_for_smallest_distance([_|T],CurPos,Smallest,Pos) ->
-    pos_for_smallest_distance(T,CurPos+1,Smallest,Pos).
-
-distances(_RGB,[]) ->
-    [];
-distances({R,G,B},[{R2,G2,B2}|T]) ->
-    [lists:max([abs(R-R2),abs(G-G2),abs(B-B2)])|distances({R,G,B},T)].
-
-get_option(Option, Options, Default) ->
-    case gs:assq(Option, Options) of
-	{value, Val} -> Val;
-	false -> Default
-    end.