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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2009-2018. 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 : hello.erl
%%% Author : Matthew Harrison <harryhuk at users.sourceforge.net>
%%% Description : _really_ minimal example of a wxerlang app
%%% implemented with wx_object behaviour
%%%
%%% Created : 18 Sep 2008 by Matthew Harrison <harryhuk at users.sourceforge.net>
%%% Dan rewrote it to show wx_object behaviour
%%%-------------------------------------------------------------------
-module(hello2).
-include_lib("wx/include/wx.hrl").
-export([start/0,
init/1, handle_info/2, handle_event/2, handle_call/3,
code_change/3, terminate/2]).
-behaviour(wx_object).
-record(state, {win}).
start() ->
wx_object:start_link(?MODULE, [], []).
%% Init is called in the new process.
init([]) ->
wx:new(),
Frame = wxFrame:new(wx:null(),
-1, % window id
"Hello World", % window title
[{size, {600,400}}]),
wxFrame:createStatusBar(Frame,[]),
%% if we don't handle this ourselves, wxwidgets will close the window
%% when the user clicks the frame's close button, but the event loop still runs
wxFrame:connect(Frame, close_window),
ok = wxFrame:setStatusText(Frame, "Hello World!",[]),
wxWindow:show(Frame),
{Frame, #state{win=Frame}}.
%% Handled as in normal gen_server callbacks
handle_info(Msg, State) ->
io:format("Got Info ~p~n",[Msg]),
{noreply,State}.
handle_call(Msg, _From, State) ->
io:format("Got Call ~p~n",[Msg]),
{reply,ok,State}.
%% Async Events are handled in handle_event as in handle_info
handle_event(#wx{event=#wxClose{}}, State = #state{win=Frame}) ->
io:format("~p Closing window ~n",[self()]),
ok = wxFrame:setStatusText(Frame, "Closing...",[]),
wxWindow:destroy(Frame),
{stop, normal, State}.
code_change(_, _, State) ->
{stop, not_yet_implemented, State}.
terminate(_Reason, _State) ->
ok.
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