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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2009. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights 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_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(Msg, _From, State) ->
+ demo:format(State#state.config, "Got Call ~p\n", [Msg]),
+ {reply,{error, nyi}, State}.
+
+code_change(_, _, State) ->
+ {stop, ignore, State}.
+
+terminate(_Reason, _State) ->
+ ok.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Local functions
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+