%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1997-2009. 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(pman_module_info).
%% Window with module information (View->Module Info...)
%% External exports
-export([start/1]).
%% Record for keeping the loop state for the
%% module info process.
-record(state, {topwin, % GS identifier for top window
editor, % GS identifier for editor
module, % Name of the viewed module
parent}). % Pid of the parent
start(Module) ->
Self = self(),
spawn_link(fun() -> init(Module, Self) end).
init(Module, Parent) ->
process_flag(trap_exit, true),
GS = gs:start([{kernel,true}]),
Font = pman_win:font(GS),
WinTitle = lists:flatten(io_lib:format("Pman - Module Info: ~p",
[Module])),
WinOptions = [{title,WinTitle}, {width,550}, {height, 400},
{configure,true}, {keypress,true}, {destroy,true}],
TopWindow = gse:window(GS, WinOptions),
%% File menu
MenuBar = gse:menubar(TopWindow, []),
MBFile = gse:menubutton(MenuBar, [{label,{text," File "}},
{font,Font}, {underline, 1}]),
MenuFile = gse:menu(MBFile, []),
gse:named_menuitem('Save buffer', MenuFile,
[{label,{text,"Save buffer..."}},
{font,Font}, {underline,0}]),
gse:named_menuitem('Close', MenuFile,
[{label,{text,"Close"}},
{font,Font}, {underline,0}]),
%% Output part of window
Editor = gse:editor(TopWindow,
[{font,Font},
{x,3}, {y,40}, {width,546}, {height,348}]),
gse:config(Editor, [{keypress,true},
{insert,{'end',pman_win:module_data(Module)}}]),
gse:config(Editor, [{enable,false},
{vscroll,right}, {hscroll,bottom},
{wrap,none}]),
gse:map(TopWindow),
State = #state{topwin=TopWindow, editor=Editor, module=Module,
parent=Parent},
loop(State).
loop(State) ->
receive
%% Die if the parent dies
{'EXIT', Pid, _Reason} when Pid==State#state.parent ->
gse:destroy(State#state.topwin);
%% Ignore other exit signals (from file dialog window)
{'EXIT', _Pid, _Reason} ->
loop(State);
%% Window closed
{gs, _TopWindow, destroy, [], []} ->
ok;
%% Window resized or moved
{gs, _TopWindow, configure ,_Data, [W,H,_X,_Y|_]} ->
gs:config(State#state.editor, [{width,W-3}, {height,H-40}]),
loop(State);
%% Close - destroy window and exit process
{gs, 'Close', click, _Data, _Args} ->
gse:destroy(State#state.topwin),
ok;
%% Save Buffer - make filename and save buffer to file
{gs, 'Save buffer', click, _Data, _Args} ->
save_buffer(State),
loop(State);
%% Keyboard accelerator commands
{gs, _, keypress, [], [c,_,0,1]} -> % 'Close'
gse:destroy(State#state.topwin),
ok;
{gs, _, keypress, [], [s,_,0,1]} -> % 'Save buffer'
save_buffer(State),
loop(State);
{gs, _, keypress, _Data, _Args} ->
loop(State)
end.
save_buffer(State) ->
DefaultFile = atom_to_list(State#state.module) ++ ".module_info",
Result = tool_utils:file_dialog([{type,save}, {file,DefaultFile}]),
case Result of
%% User selected a file, now save the result
{ok, File, _Dir} ->
gs:config(State#state.editor, {save,File}),
Msg = "Module information saved in file\n" ++ File,
tool_utils:notify(State#state.topwin, Msg);
%% File dialog was cancelled in some way.
{error, _Reason} ->
ignore
end.
