Question

我是二郎的新手，我正试图绕过wxerlang，但是已经撞墙了。有人可以看看这个代码，并告诉我有什么问题。我认为这是非常明显的事情，但我无法解决这个问题。


-module(main).

-include_lib("include/wx.hrl").

-behavoiur(wx_object).
-export([start/0]).  %% API
-export([init/1, handle_call/3, handle_event/2, handle_info/2, terminate/2]). %% Call Backs

-record(state, {win, action}).

-define(NEW_APP, 101).

start() ->
    wx_object:start(?MODULE, [], []).

init(Options) ->
    wx:new(Options),
    Frame = wxFrame:new(wx:null(), ?wxID_ANY, "Rails IDE", [{size,{1000,500}}]),

    MB = wxMenuBar:new(),
    wxFrame:setMenuBar(Frame,MB),
    File    = wxMenu:new([]),
    wxMenu:append(File, ?NEW_APP, "&New"),
    wxMenu:append(File, ?wxID_EXIT, "&Quit"),

    wxMenuBar:append(MB, File, "&File"),

    wxFrame:connect(Frame, command_menu_selected),

    _SB = wxFrame:createStatusBar(Frame,[]),

    MainSplitter = wxSplitterWindow:new(Frame, []),
    LeftSplitter = wxSplitterWindow:new(MainSplitter, []),
    CenterSplitter = wxSplitterWindow:new(MainSplitter, []),
    RightSplitter = wxSplitterWindow:new(MainSplitter, []),
    BottomSplitter = wxSplitterWindow:new(MainSplitter, []),

    wxSplitterWindow:setMinimumPaneSize(MainSplitter, 1),
    wxSplitterWindow:setMinimumPaneSize(LeftSplitter, 1),
    wxSplitterWindow:setMinimumPaneSize(CenterSplitter, 1),
    wxSplitterWindow:setMinimumPaneSize(RightSplitter, 1),
    wxSplitterWindow:setMinimumPaneSize(BottomSplitter, 1),

    wxFrame:show(Frame),

    State = #state{win=Frame},
    {Frame, State}.

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}.

handle_event(#wx{id = Id,
                 event = #wxCommand{type = command_menu_selected}},
             State = #state{}) ->
    case Id of
        ?NEW_APP ->
            Panel = newAppDialog(State#state.win),
            {noreply,  State#state{action=Panel}};
        ?wxID_EXIT ->
            {stop, normal, State};
        _ ->
            {noreply, State}
    end;

handle_event(Ev,State) ->
    io:format("~p Got event ~p ~n",[?MODULE, Ev]),
    {noreply, State}.

terminate(_Reason, _State) ->
    wx:destroy().


newAppDialog(Frame) ->
    Panel = wxPanel:new(Frame, []),

    %% Setup sizers
    MainSizer = wxBoxSizer:new(?wxVERTICAL),
    SubSizer = wxStaticBoxSizer:new(?wxVERTICAL, Panel, [{label, "Create a new Rails app."}]),

    Label1 = wxStaticText:new(Panel, 1, "App root"),
    DirPicker = wxDirPickerCtrl:new(Panel, 2,
                                    [{path, "/"},
                                     {style, ?wxDIRP_USE_TEXTCTRL},
                                     {message, "Select app root"}]),
    Label2 = wxStaticText:new(Panel, 3, "App name"),
    TextCtrl = wxTextCtrl:new(Panel, 4),
    Button = wxButton:new(Panel, ?wxID_OK),

    %% Add to sizers
            PickerOptions = [{border, 4},{flag, ?wxALL bor ?wxEXPAND}],
    wxSizer:add(SubSizer, Label1, PickerOptions ),
    wxSizer:add(SubSizer, DirPicker, PickerOptions ),
    wxSizer:add(SubSizer, Label2, PickerOptions ),
    wxSizer:add(SubSizer, TextCtrl, PickerOptions),
    wxSizer:add(SubSizer, Button, PickerOptions),

    SizerOptions  = [{flag, ?wxEXPAND}],
    wxSizer:add(MainSizer, SubSizer, SizerOptions),

    wxWindow:connect(Panel, command_button_clicked),
    wxPanel:setSizer(Panel, MainSizer),
    wxSizer:layout(MainSizer),
    Panel.

Answer 1

您是否收到编译错误？

将include_lib行更改为

-include_lib("wx/include/wx.hrl").

通过该更改，它会编译并在运行时得到一个空白窗口（我在Mac OS X上使用erl 5.7.2）。那是你的期望吗？

如果您是Erlang的新手，可能更容易从更简单的事情开始。理解wx_object手册页并不是很难，但只有在你掌握了OTP之后才能理解，并且在我的拙见中首先编写了几个测试服务器。一旦你在那一点上覆盖wx的工作方式就更简单了。同时做两件事将会更具挑战性，但你的里程可能会有所不同......！

Answer 2

我意识到这是一个老问题，但我注意到了

-behaviour（wx_object）。

拼错了。（你有行为（wx_object）。

wxErlang - 这段代码有什么问题？

2 个答案: