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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1996-2012. 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%
%%
%%
%% ------------------------------------------------------------
%% Simple Browser
%% ------------------------------------------------------------
-module(browser).
-compile([{nowarn_deprecated_function,{gs,button,2}},
{nowarn_deprecated_function,{gs,config,2}},
{nowarn_deprecated_function,{gs,entry,2}},
{nowarn_deprecated_function,{gs,label,2}},
{nowarn_deprecated_function,{gs,listbox,2}},
{nowarn_deprecated_function,{gs,read,2}},
{nowarn_deprecated_function,{gs,start,0}},
{nowarn_deprecated_function,{gs,window,2}}]).
-export([start/0,start/2,init/3]).
start() ->
spawn(browser,init,[self(),text(),items()]),
receive
{browser,Result} -> Result
end.
text() -> "Pick an erlangian: ".
items() ->
lists:sort(["marcus","bjorn","anders","dalle","henrik","mk",
"keisu","klas","patric","ola","torpvret","lelle",
"eklas","mbj","janne","martin","kent","pippi",
"gunilla","uwiger","macr"]).
start(Text,Items) ->
spawn(browser,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"}]),
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.
%% ------------------------------------------------------------
%% end of browser.erl
|
