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-rw-r--r--lib/observer/src/observer_lib.erl199
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diff --git a/lib/observer/src/observer_lib.erl b/lib/observer/src/observer_lib.erl
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+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2011. 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(observer_lib).
+
+-export([get_wx_parent/1,
+ display_info_dialog/1,
+ interval_dialog/4, start_timer/1, stop_timer/1,
+ display_info/2, update_info/2, to_str/1]).
+
+-include_lib("wx/include/wx.hrl").
+
+get_wx_parent(Window) ->
+ Parent = wxWindow:getParent(Window),
+ case wx:is_null(Parent) of
+ true -> Window;
+ false -> get_wx_parent(Parent)
+ end.
+
+interval_dialog(Parent0, {Timer, Value}, Min, Max) ->
+ Parent = get_wx_parent(Parent0),
+ Dialog = wxDialog:new(Parent, ?wxID_ANY, "Update Interval",
+ [{style, ?wxDEFAULT_DIALOG_STYLE bor
+ ?wxRESIZE_BORDER}]),
+ Panel = wxPanel:new(Dialog),
+ Check = wxCheckBox:new(Panel, ?wxID_ANY, "Periodical refresh"),
+ wxCheckBox:setValue(Check, Timer /= false),
+ Style = ?wxSL_HORIZONTAL bor ?wxSL_AUTOTICKS bor ?wxSL_LABELS,
+ Slider = wxSlider:new(Panel, ?wxID_ANY, Value, Min, Max,
+ [{style, Style}, {size, {200, -1}}]),
+ wxWindow:enable(Slider, [{enable, Timer /= false}]),
+ InnerSizer = wxBoxSizer:new(?wxVERTICAL),
+ Buttons = wxDialog:createButtonSizer(Dialog, ?wxOK bor ?wxCANCEL),
+ Flags = [{flag, ?wxEXPAND bor ?wxALL}, {border, 2}],
+ wxSizer:add(InnerSizer, Check, Flags),
+ wxSizer:add(InnerSizer, Slider, Flags),
+ wxPanel:setSizer(Panel, InnerSizer),
+ TopSizer = wxBoxSizer:new(?wxVERTICAL),
+ wxSizer:add(TopSizer, Panel, [{flag, ?wxEXPAND bor ?wxALL}, {border, 5}]),
+ wxSizer:add(TopSizer, Buttons, [{flag, ?wxEXPAND}]),
+ wxWindow:setSizerAndFit(Dialog, TopSizer),
+ wxSizer:setSizeHints(TopSizer, Dialog),
+ wxCheckBox:connect(Check, command_checkbox_clicked,
+ [{callback, fun(#wx{event=#wxCommand{commandInt=Enable0}},_) ->
+ Enable = Enable0 > 0,
+ wxWindow:enable(Slider, [{enable, Enable}])
+ end}]),
+ Res = case wxDialog:showModal(Dialog) of
+ ?wxID_OK ->
+ Enabled = wxCheckBox:isChecked(Check),
+ setup_timer(Enabled, {Timer, wxSlider:getValue(Slider)});
+ ?wxID_CANCEL ->
+ {Timer, Value}
+ end,
+ wxDialog:destroy(Dialog),
+ Res.
+
+stop_timer(Timer = {false, _}) -> Timer;
+stop_timer(Timer = {true, _}) -> Timer;
+stop_timer(Timer = {_, Intv}) ->
+ setup_timer(false, Timer),
+ {true, Intv}.
+start_timer(Intv) when is_integer(Intv) ->
+ setup_timer(true, {true, Intv});
+start_timer(Timer) ->
+ setup_timer(true, Timer).
+
+setup_timer(false, {Timer, Value})
+ when is_boolean(Timer) ->
+ {false, Value};
+setup_timer(true, {false, Value}) ->
+ {ok, Timer} = timer:send_interval(Value * 1000, refresh_interval),
+ {Timer, Value};
+setup_timer(Bool, {Timer, Old}) ->
+ timer:cancel(Timer),
+ setup_timer(Bool, {false, Old}).
+
+display_info_dialog(Str) ->
+ Dlg = wxMessageDialog:new(wx:null(), Str),
+ wxMessageDialog:showModal(Dlg),
+ wxMessageDialog:destroy(Dlg),
+ ok.
+
+%% display_info(Parent, [{Title, [{Label, Info}]}]) -> {Panel, Sizer, InfoFieldsToUpdate}
+display_info(Frame, Info) ->
+ Panel = wxPanel:new(Frame),
+ wxWindow:setBackgroundColour(Panel, {255,255,255}),
+ Sizer = wxBoxSizer:new(?wxVERTICAL),
+ wxSizer:addSpacer(Sizer, 5),
+ Add = fun(BoxInfo) ->
+ {Box, InfoFs} = create_box(Panel, BoxInfo),
+ wxSizer:add(Sizer, Box, [{flag, ?wxEXPAND bor ?wxALL},
+ {border, 5}]),
+ wxSizer:addSpacer(Sizer, 5),
+ InfoFs
+ end,
+ InfoFs = [Add(I) || I <- Info],
+ wxWindow:setSizerAndFit(Panel, Sizer),
+ {Panel, Sizer, InfoFs}.
+
+update_info([Fields|Fs], [{_Header, SubStructure}| Rest]) ->
+ update_info2(Fields, SubStructure),
+ update_info(Fs, Rest);
+update_info([Fields|Fs], [{_Header, _Attrib, SubStructure}| Rest]) ->
+ update_info2(Fields, SubStructure),
+ update_info(Fs, Rest);
+update_info([], []) ->
+ ok.
+
+update_info2([Field|Fs], [{_Str, Value}|Rest]) ->
+ wxStaticText:setLabel(Field, to_str(Value)),
+ update_info2(Fs, Rest);
+update_info2([], []) -> ok.
+
+
+to_str(Value) when is_atom(Value) ->
+ atom_to_list(Value);
+to_str({bytes, B}) ->
+ KB = B div 1024,
+ MB = KB div 1024,
+ if
+ MB > 10 -> integer_to_list(MB) ++ " mB";
+ KB > 0 -> integer_to_list(KB) ++ " kB";
+ true -> integer_to_list(B) ++ " B "
+ end;
+to_str({time_ms, MS}) ->
+ S = MS div 1000,
+ Min = S div 60,
+ Hours = Min div 60,
+ Days = Hours div 24,
+ if
+ Days > 0 -> integer_to_list(Days) ++ " Days";
+ Hours > 0 -> integer_to_list(Hours) ++ " Hours";
+ Min > 0 -> integer_to_list(Min) ++ " Mins";
+ true -> integer_to_list(S) ++ " Secs"
+ end;
+
+to_str({A, B}) ->
+ lists:concat([A, ":", B]);
+to_str({M,F,A}) ->
+ lists:concat([M, ":", F, "/", A]);
+to_str(Value) when is_list(Value) ->
+ case lists:all(fun(X) -> is_integer(X) end, Value) of
+ true -> Value;
+ false ->
+ lists:foldl(fun(X, Acc) ->
+ to_str(X) ++ " " ++ Acc end,
+ "", Value)
+ end;
+to_str(Port) when is_port(Port) ->
+ erlang:port_to_list(Port);
+to_str(Pid) when is_pid(Pid) ->
+ pid_to_list(Pid);
+to_str(No) when is_integer(No) ->
+ integer_to_list(No);
+to_str(ShouldNotGetHere) ->
+ erlang:error({?MODULE, to_str, ShouldNotGetHere}).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+get_box_info({Title, List}) when is_list(List) -> {Title, ?wxALIGN_LEFT, List};
+get_box_info({Title, left, List}) -> {Title, ?wxALIGN_LEFT, List};
+get_box_info({Title, right, List}) -> {Title, ?wxALIGN_RIGHT, List}.
+
+create_box(Panel, Data) ->
+ {Title, Align, Info} = get_box_info(Data),
+ Box = wxStaticBoxSizer:new(?wxHORIZONTAL, Panel, [{label, Title}]),
+ Left = wxBoxSizer:new(?wxVERTICAL),
+ Right = wxBoxSizer:new(?wxVERTICAL),
+ Expand = [{flag, ?wxEXPAND}],
+ ExpAlign = [{flag, Align}],
+ AddRow = fun({Desc, Value}) ->
+ wxSizer:add(Left, wxStaticText:new(Panel, ?wxID_ANY, Desc ++ ":"), Expand),
+ Field = wxStaticText:new(Panel, ?wxID_ANY, to_str(Value)),
+ wxSizer:add(Right, Field, ExpAlign),
+ Field
+ end,
+ InfoFields = [AddRow(Entry) || Entry <- Info],
+ wxSizer:add(Box, Left),
+ wxSizer:addSpacer(Box, 10),
+ wxSizer:add(Box, Right),
+ wxSizer:addSpacer(Box, 30),
+ {Box, InfoFields}.
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