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-module(ex10).
-copyright('Copyright (c) 1991-97 Ericsson Telecom AB').
-vsn('$Revision: /main/release/2 $ ').
-export([start/0, init/3]).
start() ->
start("Pick a fruit:",
[apple, banana, lemon, orange, strawberry,
mango, kiwi, pear, cherry,pineapple,peach,apricot]).
start(Text,Items) ->
spawn(ex10,init,[self(),Text,Items]),
receive
{browser,Result} -> Result
end.
init(Pid,Text,Items) ->
S=gs:start(),
Win=gs:window(S,[{width,250},{height,270},
{title,"Browser"}]),
Lbl=gs:label(Win,[{label,{text,Text}},{width,250}]),
Entry=gs:entry(Win,[{y,35},{width,240},{x,5},
{keypress,true},
{setfocus,true}]),
Lb=gs:listbox(Win,[{x,5},{y,65},{width,160},
{height,195},{vscroll,right},
{click,true},{doubleclick,true}]),
Ok=gs:button(Win,[{label,{text,"OK"}},
{width,40},{x,185},{y,175}]),
Cancel=gs:button(Win,[{label,{text,"Cancel"}},
{x,175},{y,225},{width,65}]),
gs:config(Lb,[{items,Items}]),
gs:config(Win,{map,true}),
browser_loop(Pid,Ok,Cancel,Entry,Lb).
browser_loop(Pid,Ok,Cancel,Entry,Lb) ->
receive
{gs,Ok,click,_,_} ->
Txt=gs:read(Entry,text),
Pid ! {browser,{ok,Txt}};
{gs,Cancel,click,_,_} ->
Pid ! {browser,cancel};
{gs,Entry,keypress,_,['Return'|_]} ->
Txt=gs:read(Entry,text),
Pid ! {browser,{ok,Txt}};
{gs,Entry,keypress,_,_} ->
browser_loop(Pid,Ok,Cancel,Entry,Lb);
{gs,Lb,click,_,[Idx, Txt|_]} ->
gs:config(Entry,{text,Txt}),
browser_loop(Pid,Ok,Cancel,Entry,Lb);
{gs,Lb,doubleclick,_,[Idx, Txt|_]} ->
Pid ! {browser,{ok,Txt}};
{gs,_,destroy,_,_} ->
Pid ! {browser,cancel};
X ->
io:format("Got X=~w~n",[X]),
browser_loop(Pid,Ok,Cancel,Entry,Lb)
end.
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