1%%
2%% %CopyrightBegin%
3%%
4%% Copyright Ericsson AB 2009-2016. All Rights Reserved.
5%%
6%% Licensed under the Apache License, Version 2.0 (the "License");
7%% you may not use this file except in compliance with the License.
8%% You may obtain a copy of the License at
9%%
10%%     http://www.apache.org/licenses/LICENSE-2.0
11%%
12%% Unless required by applicable law or agreed to in writing, software
13%% distributed under the License is distributed on an "AS IS" BASIS,
14%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15%% See the License for the specific language governing permissions and
16%% limitations under the License.
17%%
18%% %CopyrightEnd%
19
20-module(ex_slider).
21
22-behaviour(wx_object).
23
24-export([start/1, init/1, terminate/2,  code_change/3,
25	 handle_info/2, handle_call/3, handle_cast/2, handle_event/2]).
26
27-include_lib("wx/include/wx.hrl").
28
29-record(state,
30	{
31	  parent,
32	  config
33	 }).
34
35start(Config) ->
36    wx_object:start_link(?MODULE, Config, []).
37
38%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
39init(Config) ->
40        wx:batch(fun() -> do_init(Config) end).
41
42do_init(Config) ->
43    Parent = proplists:get_value(parent, Config),
44    Panel = wxPanel:new(Parent, []),
45
46    %% Setup sizers
47    MainSizer = wxBoxSizer:new(?wxVERTICAL),
48    Sizer = wxStaticBoxSizer:new(?wxVERTICAL, Panel,
49				 [{label, "Horizontal wxSlider"}]),
50    Sizer2 = wxStaticBoxSizer:new(?wxHORIZONTAL, Panel,
51				 [{label, "Vertical wxSlider"}]),
52
53    %% Setup slider with range from 0 to 100
54    %% and a start value of 25
55    Min = 0,
56    Max = 100,
57    StartValue = 25,
58    %% Horizontal slider (default) with label
59    Slider = wxSlider:new(Panel, 1, StartValue, Min, Max,
60				[{style, ?wxSL_HORIZONTAL bor
61				  ?wxSL_LABELS}]),
62    %% Horizontal inverse slider with label
63    InverseSlider = wxSlider:new(Panel, 2, StartValue, Min, Max,
64				 [{style, ?wxSL_HORIZONTAL bor
65				   ?wxSL_LABELS bor
66				   ?wxSL_INVERSE}]),
67    VerticalSlider = wxSlider:new(Panel, 3, StartValue, Min, Max,
68				 [{style, ?wxSL_VERTICAL bor
69				   ?wxSL_LABELS}]),
70    InverseVerticalSlider = wxSlider:new(Panel, 4, StartValue, Min, Max,
71					 [{style, ?wxSL_VERTICAL bor
72					   ?wxSL_LABELS bor
73					   ?wxSL_INVERSE}]),
74
75    %% Add to sizers
76    wxSizer:add(Sizer, Slider, [{flag, ?wxEXPAND}]),
77    wxSizer:add(Sizer, InverseSlider, [{flag, ?wxEXPAND}]),
78    wxSizer:add(Sizer2, VerticalSlider, [{flag, ?wxEXPAND},
79					 {proportion, 1}]),
80    wxSizer:add(Sizer2, InverseVerticalSlider, [{flag, ?wxEXPAND},
81						{proportion, 1}]),
82
83    wxSizer:add(MainSizer, Sizer, [{flag, ?wxEXPAND}]),
84    wxSizer:add(MainSizer, Sizer2, [{flag, ?wxEXPAND},
85				    {proportion, 1}]),
86
87    wxPanel:setSizer(Panel, MainSizer),
88    {Panel, #state{parent=Panel, config=Config}}.
89
90%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
91%% Async Events are handled in handle_event as in handle_info
92handle_event(Ev = #wx{}, State = #state{}) ->
93    demo:format(State#state.config,"Got Event ~p\n",[Ev]),
94    {noreply, State}.
95
96%% Callbacks handled as normal gen_server callbacks
97handle_info(Msg, State) ->
98    demo:format(State#state.config, "Got Info ~p\n",[Msg]),
99    {noreply, State}.
100
101handle_call(shutdown, _From, State=#state{parent=Panel}) ->
102    wxPanel:destroy(Panel),
103    {stop, normal, ok, State};
104
105handle_call(Msg, _From, State) ->
106    demo:format(State#state.config,"Got Call ~p\n",[Msg]),
107    {reply, {error, nyi},State}.
108
109handle_cast(Msg, State) ->
110    io:format("Got cast ~p~n",[Msg]),
111    {noreply,State}.
112
113code_change(_, _, State) ->
114    {stop, ignore, State}.
115
116terminate(_Reason, _State) ->
117    ok.
118
119%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
120%% Local functions
121%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
122
123