%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2009-2016. 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(ex_treeCtrl).
-behaviour(wx_object).
%% Client API
-export([start/1]).
%% wx_object callbacks
-export([init/1, terminate/2, code_change/3,
handle_info/2, handle_call/3, handle_cast/2, handle_event/2]).
-include_lib("wx/include/wx.hrl").
-record(state,
{
parent,
config
}).
start(Config) ->
wx_object:start_link(?MODULE, Config, []).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
init(Config) ->
wx:batch(fun() -> do_init(Config) end).
do_init(Config) ->
Parent = proplists:get_value(parent, Config),
Panel = wxPanel:new(Parent, []),
%% Setup sizers
MainSizer = wxBoxSizer:new(?wxVERTICAL),
Sizer = wxStaticBoxSizer:new(?wxVERTICAL, Panel,
[{label, "wxTreeCtrl"}]),
%% Setup treeCtrl
TreeCtrl = wxTreeCtrl:new(Panel, []),
RootId = wxTreeCtrl:addRoot(TreeCtrl, "Root"),
%% Name the first items
Items = ["item "++integer_to_list(Int)||
Int <- lists:seq(1,10)],
%% Create the first items in the treeCtrl
SubItems = [{wxTreeCtrl:appendItem(TreeCtrl, RootId, Item), Item}||
Item <- Items],
%% Create sub items
[wxTreeCtrl:appendItem(TreeCtrl, ItemId, Item++" sub item "++integer_to_list(Int))||
{ItemId, Item} <- SubItems, Int <- lists:seq(1,10)],
wxTreeCtrl:expand(TreeCtrl, RootId),
%% Add to sizers
Options = [{flag, ?wxEXPAND}, {proportion, 1}],
wxSizer:add(Sizer, TreeCtrl, Options),
wxSizer:add(MainSizer, Sizer, Options),
wxTreeCtrl:connect(TreeCtrl, command_tree_item_collapsed),
wxTreeCtrl:connect(TreeCtrl, command_tree_item_expanded),
wxTreeCtrl:connect(TreeCtrl, command_tree_sel_changed),
wxPanel:setSizer(Panel, MainSizer),
{Panel, #state{parent=Panel, config=Config}}.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Async Events are handled in handle_event as in handle_info
handle_event(#wx{event = #wxTree{type = command_tree_item_collapsed,
item = Item},
obj = TreeCtrl},
State = #state{}) ->
ItemText = wxTreeCtrl:getItemText(TreeCtrl, Item),
demo:format(State#state.config, "You have collapsed ~p.\n", [ItemText]),
{noreply, State};
handle_event(#wx{event = #wxTree{type = command_tree_item_expanded,
item = Item},
obj = TreeCtrl},
State = #state{}) ->
ItemText = wxTreeCtrl:getItemText(TreeCtrl, Item),
demo:format(State#state.config, "You have expanded ~p.\n", [ItemText]),
{noreply, State};
handle_event(#wx{event = #wxTree{type = command_tree_sel_changed,
item = Item},
obj = TreeCtrl},
State = #state{}) ->
ItemText = wxTreeCtrl:getItemText(TreeCtrl, Item),
demo:format(State#state.config, "You have selected ~p.\n", [ItemText]),
{noreply, State}.
%% Callbacks handled as normal gen_server callbacks
handle_info(Msg, State) ->
demo:format(State#state.config, "Got Info ~p\n", [Msg]),
{noreply, State}.
handle_call(shutdown, _From, State=#state{parent=Panel}) ->
wxPanel:destroy(Panel),
{stop, normal, ok, State};
handle_call(Msg, _From, State) ->
demo:format(State#state.config, "Got Call ~p\n", [Msg]),
{reply,{error, nyi}, State}.
handle_cast(Msg, State) ->
io:format("Got cast ~p~n",[Msg]),
{noreply,State}.
code_change(_, _, State) ->
{stop, ignore, State}.
terminate(_Reason, _State) ->
ok.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Local functions
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
