%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2009-2013. 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_sashWindow).
-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,
top_sash,
bottom_sash
}).
-define(TOP_SASH, 1).
-define(BOTTOM_SASH, 2).
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 = wxBoxSizer:new(?wxVERTICAL),
TopSash = wxSashWindow:new(Panel, [{id, ?TOP_SASH},
{style, ?wxSW_3D}]),
Win1 = wxPanel:new(TopSash, []),
wxStaticText:new(Win1, ?wxID_ANY, "This is the top sash", []),
BottomSash = wxSashWindow:new(Panel, [{id, ?BOTTOM_SASH},
{style, ?wxSW_3D}]),
Win2 = wxPanel:new(BottomSash, []),
wxStaticText:new(Win2, ?wxID_ANY, "This is the bottom sash", []),
%% Make the bottom edge of the top sash dragable
wxSashWindow:setSashVisible(TopSash, ?wxSASH_BOTTOM, true),
wxPanel:connect(Panel, sash_dragged),
wxPanel:connect(Panel, size),
%% Add to sizers
Options = [{flag, ?wxEXPAND}, {proportion, 1}],
wxSizer:add(Sizer, TopSash, Options),
wxSizer:add(Sizer, BottomSash, Options),
wxSizer:add(MainSizer, Sizer, Options),
wxPanel:setSizer(Panel, MainSizer),
wxSizer:fit(MainSizer, Panel),
wxSizer:setSizeHints(MainSizer, Panel),
{Panel, #state{parent=Panel, config=Config,
top_sash = TopSash, bottom_sash = BottomSash}}.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Async Events are handled in handle_event as in handle_info
handle_event(#wx{event = #wxSash{dragRect = {_X,Y, _W, H}}},
State = #state{top_sash = TopSash,
bottom_sash = BottomSash}) ->
{OldW, OldH} = wxPanel:getSize(State#state.parent),
Diff = OldH - H,
{OldX, _} = wxSashWindow:getPosition(BottomSash),
wxSashWindow:setMinSize(BottomSash, {OldW,Diff}),
wxSashWindow:setMinSize(TopSash, {OldW,H}),
wxSashWindow:setSize(BottomSash, {OldX, Y,OldW,Diff}),
wxSashWindow:setSize(TopSash, {OldW,H}),
wxPanel:refresh(State#state.parent),
{noreply, State};
handle_event(#wx{event = #wxSize{size = {W, H}}},
State = #state{top_sash = TopSash,
bottom_sash = BottomSash}) ->
wxSashWindow:setMinSize(TopSash, {W, H div 2}),
wxSashWindow:setMinSize(BottomSash, {W, H div 2}),
wxSashWindow:setSize(TopSash, {W, H div 2}),
wxSashWindow:setSize(BottomSash, {0,H div 2,W,H div 2}),
wxPanel:refresh(State#state.parent),
{noreply, State};
handle_event(Ev = #wx{}, State = #state{}) ->
demo:format(State#state.config, "Got Event ~p\n", [Ev]),
{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
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
