%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1997-2010. 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(dbg_ui_trace_win).
-compile([{nowarn_deprecated_function,{gs,button,2}},
{nowarn_deprecated_function,{gs,button,3}},
{nowarn_deprecated_function,{gs,checkbutton,2}},
{nowarn_deprecated_function,{gs,config,2}},
{nowarn_deprecated_function,{gs,create,4}},
{nowarn_deprecated_function,{gs,destroy,1}},
{nowarn_deprecated_function,{gs,editor,2}},
{nowarn_deprecated_function,{gs,editor,3}},
{nowarn_deprecated_function,{gs,entry,2}},
{nowarn_deprecated_function,{gs,entry,3}},
{nowarn_deprecated_function,{gs,frame,3}},
{nowarn_deprecated_function,{gs,grid,3}},
{nowarn_deprecated_function,{gs,gridline,2}},
{nowarn_deprecated_function,{gs,label,2}},
{nowarn_deprecated_function,{gs,label,3}},
{nowarn_deprecated_function,{gs,menubar,2}},
{nowarn_deprecated_function,{gs,read,2}},
{nowarn_deprecated_function,{gs,window,2}},
{nowarn_deprecated_function,{gs,window,3}}]).
%% External exports
-export([init/0]).
-export([create_win/4, get_window/1,
configure/2,
enable/2, is_enabled/1, select/2,
add_break/3, update_break/2, delete_break/2,
clear_breaks/1, clear_breaks/2,
display/1, % Help messages
is_shown/2, % Code area
show_code/3, show_no_code/1, remove_code/2,
mark_line/3, unmark_line/1,
select_line/2, selected_line/1,
eval_output/2, % Evaluator area
update_bindings/1, % Bindings area
trace_output/1, % Trace area
handle_event/2
]).
-export([helpwin/4, % Help windows
helpwin/5]).
-record(breakInfo, {point, status, break}).
-record(winInfo, {window, % gsobj()
size, % {W, H}
flags, % {F,F,F,F} F = open|close
marked_line=0, % integer() Current line
selected_line=0, % integer() Selected line
breaks=[], % [#breakInfo{}] Known breakpoints
editor, % {Mod, Editor} Visible code editor
editors=[] % [{Mod,Editor}] Code editors
}).
%%====================================================================
%% External exports
%%====================================================================
%%--------------------------------------------------------------------
%% init() -> GS
%% GS = term()
%%--------------------------------------------------------------------
init() ->
dbg_ui_win:init().
%%--------------------------------------------------------------------
%% create_win(GS, Title, TraceWin, Menus) -> #winInfo{}
%% GS = gsobj()
%% Title = string()
%% TraceWin = [WinArea]
%% WinArea = 'Button|Evaluator|Bindings|Trace Area'
%% Menus = [menu()] See dbg_ui_win.erl
%%--------------------------------------------------------------------
create_win(GS, Title, TraceWin, Menus) ->
Bu = flip(lists:member('Button Area', TraceWin)),
Ev = flip(lists:member('Evaluator Area', TraceWin)),
Bi = flip(lists:member('Bindings Area', TraceWin)),
Tr = flip(lists:member('Trace Area', TraceWin)),
Win = gs:window(trace_window, GS, [{title, Title},
{width, 550},
{configure,true}, {destroy,true},
{keypress,true}, {motion,true}]),
MenuBar = gs:menubar(Win, []),
dbg_ui_win:create_menus(MenuBar, Menus),
dbg_ui_winman:windows_menu(MenuBar),
FrameOpts = [{anchor,nw}, {relief,raised}, {bw,2}, {keypress,true}],
Editor = code_area(2, 25, FrameOpts, Win),
button_area(Bu, 2, 235, FrameOpts, Win),
eval_area({Ev,Bi}, 2, 265, FrameOpts, Win),
bind_area({Ev,Bi}, 300, 265, FrameOpts, Win),
trace_area(Tr, 2, 475, FrameOpts, Win),
Flags = {Bu, Ev, Bi, Tr},
resizebar(rb1(Flags), 'RB1', 2, 225, 710, 10, Win),
resizebar(rb2(Flags), 'RB2', 2, 465, 710, 10, Win),
resizebar(rb3(Flags), 'RB3', 290, 265, 10, 200, Win),
config_v(),
config_h(),
gs:config(Win,{height,
25 +
gs:read('CodeArea', height) +
gs:read('RB1', height) +
gs:read('ButtonArea', height) +
erlang:max(gs:read('EvalArea', height),
gs:read('BindArea', height)) +
gs:read('RB2', height) +
gs:read('TraceArea', height)}),
gs:config(Win, {map, true}),
#winInfo{window=Win, size={gs:read(Win,width), gs:read(Win,height)},
flags=Flags,
editor={'$top', Editor}, editors=[{'$top', Editor}]}.
flip(true) -> open;
flip(false) -> close.
%%--------------------------------------------------------------------
%% get_window(WinInfo) -> Window
%% WinInfo = #winInfo{}
%% Window = gsobj()
%%--------------------------------------------------------------------
get_window(WinInfo) ->
WinInfo#winInfo.window.
%%--------------------------------------------------------------------
%% configure(WinInfo, TraceWin) -> WinInfo
%% WinInfo = #winInfo{}
%% TraceWin = [WinArea]
%% WinArea = 'Button|Evaluator|Bindings|Trace Area'
%% Window areas should be opened or closed.
%%--------------------------------------------------------------------
configure(WinInfo, TraceWin) ->
{Bu1, Ev1, Bi1, Tr1} = OldFlags = WinInfo#winInfo.flags,
Bu2 = flip(lists:member('Button Area', TraceWin)),
Ev2 = flip(lists:member('Evaluator Area', TraceWin)),
Bi2 = flip(lists:member('Bindings Area', TraceWin)),
Tr2 = flip(lists:member('Trace Area', TraceWin)),
NewFlags = {Bu2, Ev2, Bi2, Tr2},
Win = WinInfo#winInfo.window,
W = gs:read(Win, width),
H = gs:read(Win, height),
H2 = if
Bu1 =:= close, Bu2 =:= open ->
resize_button_area(open, width, W-4),
gs:config('ButtonArea', {height, 30}),
H+30;
Bu1 =:= open, Bu2 =:= close ->
gs:config('ButtonArea', [{width, 0}, {height, 0}]),
H-30;
true -> H
end,
H3 = if
Ev1 =:= close, Ev2 =:= open, Bi1 =:= open ->
Wnew1 = round((W-10-4)/2), % W = window/2 - rb - pads
Hbi1 = gs:read('BindArea', height), % H = bind area h
resize_eval_area(open, width, Wnew1),
resize_eval_area(open, height, Hbi1),
gs:config('RB3', {width, 10}),
gs:config('RB3', {height, Hbi1}),
resize_bind_area(open, width,
Wnew1-gs:read('BindArea', width)),
H2;
Ev1 =:= close, Ev2 =:= open, Bi1 =:= close ->
resize_eval_area(open, width, W-4),
resize_eval_area(open, height, 200),
H2+200;
Ev1 =:= open, Ev2 =:= close, Bi1 =:= open ->
gs:config('EvalArea', [{width,0}, {height,0}]),
gs:config('RB3', [{width, 0}, {height, 0}]),
Wnew2 = W-4,
resize_bind_area(open, width,
Wnew2-gs:read('BindArea', width)),
H2;
Ev1 =:= open, Ev2 =:= close, Bi1 =:= close ->
Hs1 = gs:read('EvalArea', height),
gs:config('EvalArea', [{width, 0}, {height, 0}]),
H2-Hs1;
true -> H2
end,
H4 = if
Bi1 =:= close, Bi2 =:= open, Ev2 =:= open ->
Wnew3 = round((W-10-4)/2), % W = window/2 - rb - pads
Hs2 = gs:read('EvalArea', height), % H = eval area h
resize_bind_area(open, width, Wnew3),
resize_bind_area(open, height, Hs2),
gs:config('RB3', [{width,10},{height,Hs2}]),
resize_eval_area(open, width,
Wnew3-gs:read('EvalArea', width)),
H3;
Bi1 =:= close, Bi2 =:= open, Ev2 =:= close ->
resize_bind_area(open, width, W-4),
resize_bind_area(open, height, 200),
H3+200;
Bi1 =:= open, Bi2 =:= close, Ev2 =:= open ->
gs:config('BindArea', [{width, 0}, {height, 0}]),
gs:config('RB3', [{width, 0}, {height, 0}]),
Wnew4 = W-4,
resize_eval_area(open, width,
Wnew4-gs:read('EvalArea', width)),
H3;
Bi1 =:= open, Bi2 =:= close, Ev2 =:= close ->
Hbi2 = gs:read('BindArea', height),
gs:config('BindArea', [{width, 0}, {height, 0}]),
H3-Hbi2;
true -> H3
end,
H5 = if
Tr1 =:= close, Tr2 =:= open ->
resize_trace_area(open, width, W-4),
resize_trace_area(open, height, 200),
H4+200;
Tr1 =:= open, Tr2 =:= close ->
Hf = gs:read('TraceArea', height),
gs:config('TraceArea', [{width, 0}, {height, 0}]),
H4-Hf;
true -> H4
end,
gs:config(Win, {height, H5}),
RB1old = rb1(OldFlags), RB1new = rb1(NewFlags),
if
RB1old =:= close, RB1new =:= open ->
gs:config('RB1', [{width, W-4}, {height, 10}]),
gs:config(Win, {height, gs:read(Win, height)+10});
RB1old =:= open, RB1new =:= close ->
gs:config('RB1', [{width, 0}, {height, 0}, lower]),
gs:config(Win, {height, gs:read(Win, height)-10});
true -> ignore
end,
RB2old = rb2(OldFlags), RB2new = rb2(NewFlags),
if
RB2old =:= close, RB2new =:= open ->
gs:config('RB2', [{width, W-4}, {height, 10}]),
gs:config(Win, {height,gs:read(Win, height)+10});
RB2old =:= open, RB2new =:= close ->
gs:config('RB2', [{width, 0}, {height, 0}, lower]),
gs:config(Win, {height, gs:read(Win, height)-10});
true -> ignore
end,
config_v(),
config_h(),
flush_configure(),
WinInfo#winInfo{size={gs:read(Win, width), gs:read(Win, height)},
flags=NewFlags}.
flush_configure() ->
receive
{gs, _Id, configure, _Data, _Arg} ->
flush_configure()
after 100 ->
true
end.
%%--------------------------------------------------------------------
%% enable([MenuItem], Bool)
%% is_enabled(MenuItem) -> Bool
%% MenuItem = atom()
%% Bool = boolean()
%%--------------------------------------------------------------------
enable(MenuItems, Bool) ->
lists:foreach(fun(MenuItem) ->
gs:config(MenuItem, {enable, Bool}),
case is_button(MenuItem) of
{true, Button} ->
gs:config(Button, {enable, Bool});
false -> ignore
end
end,
MenuItems).
is_enabled(MenuItem) ->
gs:read(MenuItem, enable).
%%--------------------------------------------------------------------
%% select(MenuItem, Bool)
%% MenuItem = atom()
%% Bool = boolean()
%%--------------------------------------------------------------------
select(MenuItem, Bool) ->
dbg_ui_win:select(MenuItem, Bool).
%%--------------------------------------------------------------------
%% add_break(WinInfo, Name, {Point, Options}) -> WinInfo
%% WinInfo = #winInfo{}
%% Name = atom() Menu name
%% Point = {Mod, Line}
%% Options = [Status, Action, Mods, Cond]
%% Status = active | inactive
%% Action = enable | disable | delete
%% Mods = null (not used)
%% Cond = null | {Mod, Func}
%%--------------------------------------------------------------------
add_break(WinInfo, Menu, {{Mod,Line},[Status|_Options]}=Break) ->
case lists:keyfind(Mod, 1, WinInfo#winInfo.editors) of
{Mod, Editor} ->
add_break_to_code(Editor, Line, Status);
false -> ignore
end,
add_break_to_menu(WinInfo, Menu, Break).
add_break_to_code(Editor, Line, Status) ->
Color = if Status =:= active -> red; Status =:= inactive -> blue end,
config_editor(Editor, [{overwrite,{{Line,0},"-@- "}},
{fg,{{{Line,0},{Line,lineend}}, Color}}]).
add_break_to_menu(WinInfo, Menu, {Point, [Status|_Options]=Options}) ->
Break = dbg_ui_win:add_break(Menu, Point),
dbg_ui_win:update_break(Break, Options),
BreakInfo = #breakInfo{point=Point, status=Status, break=Break},
WinInfo#winInfo{breaks=[BreakInfo|WinInfo#winInfo.breaks]}.
%%--------------------------------------------------------------------
%% update_break(WinInfo, {Point, Options}) -> WinInfo
%% WinInfo = #winInfo{}
%% Point = {Mod, Line}
%% Options = [Status, Action, Mods, Cond]
%% Status = active | inactive
%% Action = enable | disable | delete
%% Mods = null (not used)
%% Cond = null | {Mod, Func}
%%--------------------------------------------------------------------
update_break(WinInfo, {{Mod,Line},[Status|_Options]}=Break) ->
case lists:keyfind(Mod, 1, WinInfo#winInfo.editors) of
{Mod, Editor} ->
add_break_to_code(Editor, Line, Status);
false -> ignore
end,
update_break_in_menu(WinInfo, Break).
update_break_in_menu(WinInfo, {Point, [Status|_Options]=Options}) ->
{value, BreakInfo} = lists:keysearch(Point, #breakInfo.point,
WinInfo#winInfo.breaks),
dbg_ui_win:update_break(BreakInfo#breakInfo.break, Options),
BreakInfo2 = BreakInfo#breakInfo{status=Status},
WinInfo#winInfo{breaks=lists:keyreplace(Point, #breakInfo.point,
WinInfo#winInfo.breaks,
BreakInfo2)}.
%%--------------------------------------------------------------------
%% delete_break(WinInfo, Point) -> WinInfo
%% WinInfo = #winInfo{}
%% Point = {Mod, Line}
%%--------------------------------------------------------------------
delete_break(WinInfo, {Mod,Line}=Point) ->
case lists:keyfind(Mod, 1, WinInfo#winInfo.editors) of
{Mod, Editor} -> delete_break_from_code(Editor, Line);
false -> ignore
end,
delete_break_from_menu(WinInfo, Point).
delete_break_from_code(Editor, Line) ->
Prefix = string:substr(integer_to_list(Line)++": ", 1, 5),
config_editor(Editor, [{overwrite,{{Line,0},Prefix}},
{fg,{{{Line,0},{Line,lineend}}, black}}]).
delete_break_from_menu(WinInfo, Point) ->
{value, BreakInfo} = lists:keysearch(Point, #breakInfo.point,
WinInfo#winInfo.breaks),
dbg_ui_win:delete_break(BreakInfo#breakInfo.break),
WinInfo#winInfo{breaks=lists:keydelete(Point, #breakInfo.point,
WinInfo#winInfo.breaks)}.
%%--------------------------------------------------------------------
%% clear_breaks(WinInfo) -> WinInfo
%% clear_breaks(WinInfo, Mod) -> WinInfo
%% WinInfo = #winInfo{}
%%--------------------------------------------------------------------
clear_breaks(WinInfo) ->
clear_breaks(WinInfo, all).
clear_breaks(WinInfo, Mod) ->
Remove = if
Mod =:= all -> WinInfo#winInfo.breaks;
true ->
lists:filter(fun(#breakInfo{point={Mod2,_L}}) ->
if
Mod2 =:= Mod -> true;
true -> false
end
end,
WinInfo#winInfo.breaks)
end,
lists:foreach(fun(#breakInfo{point=Point}) ->
delete_break(WinInfo, Point)
end,
Remove),
Remain = WinInfo#winInfo.breaks -- Remove,
WinInfo#winInfo{breaks=Remain}.
%%--------------------------------------------------------------------
%% display(Arg)
%% Arg = idle | {Status,Mod,Line} | {running,Mod}
%% � {exit,Where,Reason} | {text,Text}
%% Status = break | wait � Level
%% Level = int()
%% Mod = atom()
%% Line = integer()
%% Where = {Mod,Line} | null
%% Reason = term()
%% Text = string()
%%--------------------------------------------------------------------
display(Arg) ->
Str = case Arg of
idle -> "State: uninterpreted";
{exit, {Mod,Line}, Reason} ->
gs:config(trace_window, raise),
io_lib:format("State: EXITED [~w.erl/~w], Reason:~w",
[Mod, Line, Reason]);
{exit, null, Reason} ->
gs:config(trace_window, raise),
io_lib:format("State: EXITED [uninterpreted], "
"Reason:~w", [Reason]);
{Level, null, _Line} when is_integer(Level) ->
io_lib:format("*** Call level #~w "
"(in non-interpreted code)",
[Level]);
{Level, Mod, Line} when is_integer(Level) ->
io_lib:format("*** Call level #~w [~w.erl/~w]",
[Level, Mod, Line]);
{Status, Mod, Line} ->
What = case Status of
wait -> 'receive';
_ -> Status
end,
io_lib:format("State: ~w [~w.erl/~w]",
[What, Mod, Line]);
{running, Mod} ->
io_lib:format("State: running [~w.erl]", [Mod]);
{text, Text} -> Text
end,
gs:config(info_window, {label,{text,lists:flatten(Str)}}).
%%--------------------------------------------------------------------
%% is_shown(WinInfo, Mod) -> {true, WinInfo} | false
%% show_code(WinInfo, Mod, Contents) -> WinInfo
%% show_no_code(WinInfo) -> WinInfo
%% remove_code(WinInfo, Mod) -> WinInfo
%% WinInfo = #winInfo{}
%% Mod = atom()
%% Contents = string()
%% Note: remove_code/2 should not be used for currently shown module.
%%--------------------------------------------------------------------
is_shown(WinInfo, Mod) ->
case lists:keyfind(Mod, 1, WinInfo#winInfo.editors) of
{Mod, Editor} ->
gs:config(Editor, raise),
{true, WinInfo#winInfo{editor={Mod, Editor}}};
false -> false
end.
show_code(WinInfo, Mod, Contents) ->
Editors = WinInfo#winInfo.editors,
{Flag, Editor} = case lists:keyfind(Mod, 1, Editors) of
{Mod, Ed} -> {existing, Ed};
false -> {new, code_editor()}
end,
%% Insert code and update breakpoints, if any
config_editor(Editor, [raise, clear]),
show_code(Editor, Contents),
lists:foreach(fun(BreakInfo) ->
case BreakInfo#breakInfo.point of
{Mod2, Line} when Mod2 =:= Mod ->
Status = BreakInfo#breakInfo.status,
add_break_to_code(Editor, Line,Status);
_Point -> ignore
end
end,
WinInfo#winInfo.breaks),
case Flag of
existing ->
WinInfo#winInfo{editor={Mod, Editor}};
new ->
WinInfo#winInfo{editor={Mod, Editor},
editors=[{Mod, Editor} | Editors]}
end.
show_code(Editor, Text) when length(Text) > 1500 ->
%% Add some text at a time so that other processes may get scheduled
Str = string:sub_string(Text, 1, 1500),
config_editor(Editor, {insert,{'end', Str}}),
show_code(Editor, string:sub_string(Text, 1501));
show_code(Editor, Text) ->
config_editor(Editor, {insert,{'end',Text}}).
show_no_code(WinInfo) ->
{'$top', Editor} = lists:keyfind('$top', 1, WinInfo#winInfo.editors),
gs:config(Editor, raise),
WinInfo#winInfo{editor={'$top', Editor}}.
remove_code(WinInfo, Mod) ->
Editors = WinInfo#winInfo.editors,
case lists:keyfind(Mod, 1, Editors) of
{Mod, Editor} ->
gs:destroy(Editor),
WinInfo#winInfo{editors=lists:keydelete(Mod, 1, Editors)};
false ->
WinInfo
end.
%%--------------------------------------------------------------------
%% mark_line(WinInfo, Line, How) -> WinInfo
%% WinInfo = #winInfo{}
%% Line = integer()
%% How = break | where
%% Mark the code line where the process is executing.
%%--------------------------------------------------------------------
mark_line(WinInfo, Line, How) ->
{_Mod, Editor} = WinInfo#winInfo.editor,
mark_line2(Editor, WinInfo#winInfo.marked_line, false),
mark_line2(Editor, Line, How),
if
Line =/= 0 -> config_editor(Editor, {vscrollpos, Line-5});
true -> ignore
end,
WinInfo#winInfo{marked_line=Line}.
unmark_line(WinInfo) ->
mark_line(WinInfo, 0, false).
mark_line2(Editor, Line, How) ->
Prefix = case How of
break -> "-->";
where -> ">>>";
false -> " "
end,
Font = if
How =:= false -> dbg_ui_win:font(normal);
true -> dbg_ui_win:font(bold)
end,
config_editor(Editor, [{overwrite, {{Line,5}, Prefix}},
{font_style,
{{{Line,0},{Line,lineend}}, Font}}]).
%%--------------------------------------------------------------------
%% select_line(WinInfo, Line) -> WinInfo
%% selected_line(WinInfo) -> undefined | Line
%% WinInfo = #winInfo{}
%% Line = integer()
%% Select/unselect a line (unselect if Line=0).
%%--------------------------------------------------------------------
select_line(WinInfo, Line) ->
{_Mod, Editor} = WinInfo#winInfo.editor,
%% Since 'Line' may be specified by the user in the 'Go To Line'
%% help window, it must be checked that it is correct
Size = gs:read(Editor, size),
if
Line =:= 0 ->
select_line(Editor, WinInfo#winInfo.selected_line, false),
WinInfo#winInfo{selected_line=0};
Line < Size ->
select_line(Editor, Line, true),
config_editor(Editor, {vscrollpos, Line-5}),
WinInfo#winInfo{selected_line=Line};
true ->
WinInfo
end.
select_line(Editor, Line, true) ->
config_editor(Editor, {selection, {{Line,0}, {Line,lineend}}});
select_line(Editor, _Line, false) ->
config_editor(Editor, {selection, {{1,0}, {1,0}}}).
selected_line(WinInfo) ->
case WinInfo#winInfo.selected_line of
0 -> undefined;
Line -> Line
end.
%%--------------------------------------------------------------------
%% eval_output(Str, Face)
%% Str = string()
%% Face = normal | bold
%%--------------------------------------------------------------------
eval_output(Text, Face) ->
Y1 = gs:read('EvalEditor', size),
config_editor('EvalEditor', {insert,{'end',Text}}),
Y2 = gs:read('EvalEditor', size),
Font = dbg_ui_win:font(Face),
config_editor('EvalEditor',
[{font_style, {{{Y1,0},{Y2,lineend}}, Font}},
{vscrollpos,Y2}]).
%%--------------------------------------------------------------------
%% update_bindings(Bs)
%% Bs = [{Var,Val}]
%%--------------------------------------------------------------------
update_bindings(Bs) ->
gs:config('BindGrid', {rows, {1,length(Bs)+1}}),
Font = dbg_ui_win:font(normal),
Last =
lists:foldl(fun({Var, Val}, Row) ->
Opts = [{text, {1,atom_to_list(Var)}},
{text, {2,io_lib:format("~P",
[Val, 4])}},
{doubleclick, true},
{data, {binding,{Var,Val}}}],
case gs:read('BindGrid',{obj_at_row,Row}) of
undefined ->
gs:gridline('BindGrid',
[{row, Row},
{height, 14},
{font, Font} | Opts]);
GridLine ->
gs:config(GridLine, Opts)
end,
Row+1
end,
2,
Bs),
delete_gridlines(Last).
delete_gridlines(Row) ->
case gs:read('BindGrid', {obj_at_row, Row}) of
undefined -> true;
GridLine ->
gs:destroy(GridLine),
delete_gridlines(Row+1)
end.
%%--------------------------------------------------------------------
%% trace_output(Str)
%% Str = string()
%%--------------------------------------------------------------------
trace_output(Str) ->
Font = dbg_ui_win:font(normal),
config_editor('TraceEditor',
[{insert, {'end',Str}},
{fg, {{{1,0},'end'},black}},
{font_style, {{{1,0},'end'},Font}}]),
Max = gs:read('TraceEditor', size),
config_editor('TraceEditor', {vscrollpos, Max}).
%%--------------------------------------------------------------------
%% handle_event(GSEvent, WinInfo) -> Command
%% GSEvent = {gs, Id, Event, Data, Arg}
%% WinInfo = #winInfo{}
%% Command = ignore
%% | {win, WinInfo}
%% | stopped
%% | {coords, {X,Y}}
%%
%% | {shortcut, Key}
%% | MenuItem | {Menu, [MenuItem]}
%% MenuItem = Menu = atom()
%% | {break, Point, What}
%% What = add | delete | {status,Status} |{trigger,Trigger}
%% | {module, Mod, view}
%%
%% | {user_command, Cmd}
%%
%% | {edit, {Var, Val}}
%%--------------------------------------------------------------------
%% Window events
handle_event({gs, _Id, configure, _Data, [W, H|_]}, WinInfo) ->
case WinInfo#winInfo.size of
{W, H} -> ignore;
_Size ->
configure(WinInfo, W, H),
{win, WinInfo#winInfo{size={W, H}}}
end;
handle_event({gs, _Id, destroy, _Data, _Arg}, _WinInfo) ->
stopped;
handle_event({gs, _Id, motion, _Data, [X,Y]}, WinInfo) ->
{LastX, LastY} = dbg_ui_win:motion(X, Y),
Win = WinInfo#winInfo.window,
{coords, {gs:read(Win, x)+LastX-5, gs:read(Win, y)+LastY-5}};
handle_event({gs, RB, buttonpress, resizebar, _Arg}, WinInfo) ->
resize(WinInfo, RB), % Resize window contents
ignore;
%% Menus, buttons and keyboard shortcuts
handle_event({gs, _Id, keypress, _Data, [Key,_,_,1]}, _WinInfo) ->
{shortcut, Key};
handle_event({gs, _Id, click, {dbg_ui_winman, Win}, _Arg}, _WinInfo) ->
dbg_ui_winman:raise(Win),
ignore;
handle_event({gs, _Id, click, {menuitem, Name}, _Arg}, _WinInfo) ->
Name;
handle_event({gs, _Id, click, {menu, Menu}, _Arg}, _WinInfo) ->
Names = dbg_ui_win:selected(Menu),
{Menu, Names};
handle_event({gs, _Id, click, {break, Point, What}, _Arg}, _WinInfo) ->
{break, Point, What};
handle_event({gs, _Id, click, {module, Mod, view}, _Arg}, _WinInfo) ->
{module, Mod, view};
%% Code area
handle_event({gs, Editor, buttonpress, code_editor, _Arg}, WinInfo) ->
{Row, _Col} = gs:read(Editor, insertpos),
Again = receive
{gs, Editor, buttonpress, code_editor, _} ->
gs:read(Editor, insertpos)
after 500 ->
false
end,
case Again of
{Row, _} ->
{Mod, _Editor} = WinInfo#winInfo.editor,
Point = {Mod, Row},
case lists:keymember(Point, #breakInfo.point,
WinInfo#winInfo.breaks) of
false -> {break, Point, add};
true -> {break, Point, delete}
end;
{Row2, _} ->
select_line(Editor, Row2, true),
{win, WinInfo#winInfo{selected_line=Row2}};
false ->
select_line(Editor, Row, true),
{win, WinInfo#winInfo{selected_line=Row}}
end;
%% Button area
handle_event({gs, _Id, click, {button, Name}, _Arg}, _WinInfo) ->
Name;
%% Evaluator area
handle_event({gs, 'EvalEntry', keypress, _Data, ['Return'|_]}, _WI) ->
Command = case gs:read('EvalEntry', text) of
[10] ->
eval_output("\n", normal),
ignore;
Cmd ->
eval_output([$>, Cmd, 10], normal),
{user_command, Cmd}
end,
gs:config('EvalEntry', [{text,""}, {focus,false}]),
Command;
%% Bindings area
handle_event({gs, _Id, click, {binding, {Var, Val}}, _Arg}, _WinInfo) ->
Str = io_lib:format("< ~p = ~p~n", [Var, Val]),
eval_output(Str, bold),
ignore;
handle_event({gs, _Id, doubleclick, {binding, B}, _Arg}, _WinInfo) ->
{edit, B};
handle_event(_GSEvent, _WinInfo) ->
ignore.
%%====================================================================
%% Internal functions
%%====================================================================
%%--Code Area---------------------------------------------------------
code_area(X, Y, FrameOpts, Win) ->
gs:frame('CodeArea', Win,
[{x,X}, {y,Y}, {width,546}, {height,400} | FrameOpts]),
gs:label(info_window, 'CodeArea',
[{label,{text,""}}, {font,dbg_ui_win:font(normal)},
{x,5}, {y,10}, {width,406}, {height,15},
{anchor,nw}, {align,w}]),
code_editor('CodeEditor', 536, 365).
code_editor() ->
W = gs:read('CodeEditor', width),
H = gs:read('CodeEditor', height),
code_editor(null, W, H).
code_editor(Name, W, H) ->
Editor = if
Name =:= null -> gs:editor('CodeArea', []);
true -> gs:editor(Name, 'CodeArea', [])
end,
gs:config(Editor, [{x,5}, {y,30}, {width,W}, {height,H},
{keypress,false}, {buttonpress,true},
{data,code_editor}]),
config_editor(Editor, [{vscroll,right}, {hscroll,bottom}]),
Font = dbg_ui_win:font(normal),
config_editor(Editor, [{wrap,none}, {fg,{{{1,0},'end'},black}},
{font, Font},
{font_style, {{{1,0},'end'},Font}}]),
Editor.
resize_code_area(WinInfo, Key, Diff) ->
gs:config('CodeArea', {Key,gs:read('CodeArea', Key)+Diff}),
case Key of
width ->
gs:config(info_window, {Key,gs:read(info_window,Key)+Diff});
height -> ignore
end,
%% Resize all code editors
Value = gs:read('CodeEditor', Key)+Diff,
gs:config('CodeEditor', {Key,Value}),
Editors = WinInfo#winInfo.editors,
lists:foreach(fun({_Mod, Editor}) ->
gs:config(Editor, {Key,Value})
end,
Editors).
%%--Button Area-------------------------------------------------------
buttons() ->
[{'Step','StepButton'}, {'Next','NextButton'},
{'Continue','ContinueButton'}, {'Finish','FinishButton'},
{'Where','WhereButton'}, {'Up','UpButton'}, {'Down','DownButton'}].
is_button(Name) ->
case lists:keyfind(Name, 1, buttons()) of
{Name, Button} -> {true, Button};
false -> false
end.
button_area(Bu, X, Y, FrameOpts, Win) ->
{W,H} = case Bu of
open -> {546,30};
close -> {0,0}
end,
gs:frame('ButtonArea', Win,
[{x,X}, {y,Y}, {width,W}, {height,H} | FrameOpts]),
Font = dbg_ui_win:font(normal),
lists:foldl(fun({Name, Button}, Xb) ->
gs:button(Button, 'ButtonArea',
[{label, {text,Name}}, {font,Font},
{x, Xb}, {y, 1},
{width, 77}, {height, 24},
{data, {button,Name}}]),
Xb+78
end,
1,
buttons()).
resize_button_area(close, width, _Diff) ->
ignore;
resize_button_area(open, width, Diff) ->
gs:config('ButtonArea', {width, gs:read('ButtonArea', width)+Diff}).
%%--Evaluator Area----------------------------------------------------
eval_area({Ev,Bi}, X, Y, FrameOpts, Win) ->
{W,H} = if
Ev =:= open -> {289,200};
true -> {0,0}
end,
Font = dbg_ui_win:font(normal),
gs:frame('EvalArea', Win,
[{x,X}, {y,Y}, {width,W}, {height,H} | FrameOpts]),
gs:label('EvalArea',
[{label,{text,"Evaluator:"}}, {font, Font},
{x,5}, {y,35}, {width,80}, {height,25},
{anchor,sw}, {align,center}]),
gs:entry('EvalEntry', 'EvalArea',
[{font, Font},
{x,80}, {y,35}, {width,185}, {height,25},
{anchor,sw}, {keypress,true}]),
gs:editor('EvalEditor', 'EvalArea',
[{x,5}, {y,35}, {width, 280}, {height, 160},
{keypress,false},
{vscroll,right}, {hscroll,bottom},
{wrap,none}, {fg,{{{1,0},'end'},black}},
{font, Font},
{font_style,{{{1,0},'end'},Font}}]),
gs:config('EvalEditor', {enable, false}),
if
Ev =:= open, Bi =:= close -> resize_eval_area(Ev, width, 257);
true -> ignore
end.
resize_eval_area(close, _Key, _Diff) ->
ignore;
resize_eval_area(open, Key, Diff) ->
New = gs:read('EvalArea', Key)+Diff,
gs:config('EvalArea', {Key,New}),
case Key of
width ->
gs:config('EvalEntry', {width,New-104}),
gs:config('EvalEditor', {width,New-9});
height ->
gs:config('EvalEditor', {height,New-40})
end.
%%--Bindings Area-----------------------------------------------------
bind_area({Ev,Bi}, X, Y, FrameOpts, Win) ->
{W,H} = if
Bi =:= open -> {249,200};
true -> {0,0}
end,
gs:frame('BindArea', Win,
[{x,X}, {y,Y}, {width,W}, {height,H} | FrameOpts]),
Font = dbg_ui_win:font(bold),
gs:grid('BindGrid', 'BindArea',
[{x,2}, {y,2}, {height,193}, {width,241},
{fg,black}, {vscroll,right}, {hscroll,bottom},
{font,Font},
calc_columnwidths(241), {rows, {1,50}}]),
gs:gridline('BindGrid',
[{row,1}, {height,14}, {fg,blue},
{text,{1,"Name"}}, {text,{2,"Value"}}, {font,Font}]),
gs:config('BindGrid', {rows,{1,1}}),
if
Bi =:= open, Ev =:= close -> resize_bind_area(Bi, width, 297);
true -> ignore
end.
resize_bind_area(close, _Key, _Diff) ->
ignore;
resize_bind_area(open, Key, Diff) ->
New = gs:read('BindArea', Key)+Diff,
gs:config('BindArea', {Key,New}),
case Key of
width ->
gs:config('BindGrid', {width,New-8}),
Cols = calc_columnwidths(New-8),
gs:config('BindGrid', Cols);
height ->
gs:config('BindGrid', {height,New-7})
end.
calc_columnwidths(Width) ->
if Width =< 291 ->
{columnwidths,[90,198]};
true ->
S = (Width)/(90+198),
{columnwidths,[round(90*S),round(198*S)]}
end.
%%--Trace Area--------------------------------------------------------
trace_area(Tr, X, Y, FrameOpts, Win) ->
{W,H} = case Tr of
open -> {546,200};
close -> {0,0}
end,
gs:frame('TraceArea', Win,
[{x,X}, {y,Y}, {width,W}, {height,H} | FrameOpts]),
Editor = gs:editor('TraceEditor', 'TraceArea',
[{x,5}, {y,5}, {width,536}, {height,190},
{keypress,false}]),
Font = dbg_ui_win:font(normal),
config_editor(Editor,
[{vscroll,right}, {hscroll,bottom},
{wrap,none},{fg,{{{1,0},'end'},black}},
{font, Font},
{font_style,{{{1,0},'end'},Font}}]).
resize_trace_area(close, _Key, _Diff) ->
ignore;
resize_trace_area(open, Key, Diff) ->
New = gs:read('TraceArea', Key)+Diff,
gs:config('TraceArea', {Key,New}),
gs:config('TraceEditor', {Key,New-10}).
%%--Editors-----------------------------------------------------------
config_editor(Editor, Opts) ->
gs:config(Editor, {enable,true}),
gs:config(Editor, Opts),
gs:config(Editor, {enable,false}).
%%--Resize Bars-------------------------------------------------------
%% The resize bars are used to resize the areas within the window.
%%--------------------------------------------------------------------
%% resizebar(Flag, Name, X, Y, W, H, Obj) -> resizebar()
%% Flag = open | close
%% Name = atom()
%% X = Y = integer() Coordinates relative to Obj
%% W = H = integer() Width and height
%% Obj = gsobj()
%% Creates a 'resize bar', a frame object over which the cursor will
%% be of the 'resize' type.
%%--------------------------------------------------------------------
resizebar(Flag, Name, X, Y, W, H, Obj) ->
{W2,H2} = case Flag of
open -> {W,H};
close -> {0,0}
end,
gs:create(frame, Name, Obj, [{x,X}, {y,Y}, {width,W2}, {height,H2},
{bw,2},
{cursor,resize},
{buttonpress,true}, {buttonrelease,true},
{data,resizebar}]).
rb1({_Bu,Ev,Bi,Tr}) ->
if
Ev =:= close, Bi =:= close, Tr =:= close -> close;
true -> open
end.
rb2({_Bu,Ev,Bi,Tr}) ->
if
Tr =:= open ->
if
Ev =:= close, Bi =:= close -> close;
true -> open
end;
true -> close
end.
rb3({_Bu,Ev,Bi,_Tr}) ->
if
Ev =:= open, Bi =:= open -> open;
true -> close
end.
%%--Configuration-----------------------------------------------------
%% Resize the window as well as its contents
%%--------------------------------------------------------------------
%% config_v()
%% Reconfigure the window vertically.
%%--------------------------------------------------------------------
config_v() ->
Y1 = 25+gs:read('CodeArea', height),
gs:config('RB1', {y,Y1}),
Y2 = Y1+gs:read('RB1', height),
gs:config('ButtonArea', {y,Y2}),
Y3 = Y2+gs:read('ButtonArea', height),
gs:config('EvalArea', {y,Y3}),
gs:config('RB3', {y,Y3}),
gs:config('BindArea', {y,Y3}),
Y4 = Y3 + erlang:max(gs:read('EvalArea', height),
gs:read('BindArea', height)),
gs:config('RB2', {y,Y4}),
Y5 = Y4 + gs:read('RB2', height),
gs:config('TraceArea', {y,Y5}).
%%--------------------------------------------------------------------
%% config_h()
%% Reconfigure the window horizontally.
%%--------------------------------------------------------------------
config_h() ->
X1 = 2+gs:read('EvalArea', width),
gs:config('RB3', {x,X1}),
X2 = X1+gs:read('RB3', width),
gs:config('BindArea', {x,X2}).
%%--------------------------------------------------------------------
%% configure(WinInfo, W, H)
%% The window has been resized, now its contents must be resized too.
%%--------------------------------------------------------------------
configure(WinInfo, NewW, NewH) ->
{Bu,Ev,Bi,Tr} = Flags = WinInfo#winInfo.flags,
OldW = gs:read('CodeArea', width)+4,
OldH = 25+gs:read('CodeArea', height)+
gs:read('RB1', height)+
gs:read('ButtonArea', height)+
erlang:max(gs:read('EvalArea', height), gs:read('BindArea', height))+
gs:read('RB2', height)+
gs:read('TraceArea', height),
%% Adjust width unless it is unchanged or less than minimum width
if
OldW =/= NewW ->
{Dcode,Deval,Dbind} = configure_widths(OldW,NewW,Flags),
resize_code_area(WinInfo, width, Dcode),
case rb1(Flags) of
open ->
gs:config('RB1', {width,gs:read('RB1',width)+Dcode});
close -> ignore
end,
resize_button_area(Bu, width, Dcode),
resize_eval_area(Ev, width, Deval),
resize_bind_area(Bi, width, Dbind),
case rb2(Flags) of
open ->
gs:config('RB2', {width,gs:read('RB2',width)+Dcode});
close -> ignore
end,
resize_trace_area(Tr, width, Dcode),
config_h();
true -> ignore
end,
%% Adjust height unless it is unchanged or less than minimum height
if
OldH =/= NewH ->
{Dcode2,Deval2,Dtrace} = configure_heights(OldH,NewH,Flags),
resize_code_area(WinInfo, height, Dcode2),
resize_eval_area(Ev, height, Deval2),
case rb3(Flags) of
open ->
gs:config('RB3',
{height,gs:read('RB3',height)+Deval2});
close -> ignore
end,
resize_bind_area(Bi, height, Deval2),
resize_trace_area(Tr, height, Dtrace),
config_v();
true -> ignore
end.
%% Compute how much the width of each frame must be increased or
%% decreased in order to adjust to the new window width.
configure_widths(OldW, NewW, Flags) ->
{_Bu,Ev,Bi,_Tr} = Flags,
%% Difference between old and new width, considering min window width
Diff = abs(erlang:max(OldW,330)-erlang:max(NewW,330)),
%% Check how much the frames can be resized in reality
Limits = if
%% Window larger
NewW > OldW ->
if
Ev =:= open, Bi =:= open -> {0,Diff,Diff};
Ev =:= open -> {0,Diff,0};
Bi =:= open -> {0,0,Diff};
true -> {Diff,0,0}
end;
%% Window smaller; get difference between min size
%% and current size
OldW>NewW ->
if
Ev =:= open, Bi =:= open ->
{0,
gs:read('EvalArea',width)-204,
gs:read('BindArea',width)-112};
Ev =:= open -> {0,Diff,0};
Bi =:= open -> {0,0,Diff};
true -> {Diff,0,0}
end
end,
case Limits of
%% No Shell or Bind frame, larger window
{T,0,0} when NewW > OldW -> {T,0,0};
%% No Shell or Bind frame, smaller window
{T,0,0} when OldW > NewW -> {-T,0,0};
%% Window larger; divide Diff among the frames and return result
{_,Sf,B} when NewW > OldW ->
{_,Sf2,B2} = divide([{0,0},{0,Sf},{0,B}],Diff),
{Sf2+B2,Sf2,B2};
%% Window smaller; divide Diff among the frames and return
%% the inverted result (the frames should shrink)
{_,Sf,B} when OldW>NewW ->
{_,Sf2,B2} = divide([{0,0},{0,Sf},{0,B}],Diff),
{-(Sf2+B2),-Sf2,-B2}
end.
%% Compute how much the height of each frame must be increased or
%% decreased in order to adjust to the new window height.
configure_heights(OldH, NewH, Flags) ->
{_Bu,Ev,Bi,Tr} = Flags,
%% Difference between old and new height, considering min win height
MinH = min_height(Flags),
Diff = abs(erlang:max(OldH,MinH)-erlang:max(NewH,MinH)),
%% Check how much the frames can be resized in reality
{T,Sf,Ff} = if
%% Window larger
NewH > OldH ->
{Diff,
if
Ev =:= close, Bi =:= close -> 0;
true -> Diff
end,
if
Tr =:= open -> Diff;
true -> 0
end};
%% Window smaller; get difference between min size
%% and current size
OldH > NewH ->
{gs:read('CodeArea',height)-100,
if
Ev =:= close, Bi =:= close -> 0;
true ->
if
Ev =:= open ->
gs:read('EvalArea',height)-100;
Bi =:= open ->
gs:read('BindArea',height)-100
end
end,
if
Tr =:= open -> gs:read('TraceArea',height)-100;
true -> 0
end}
end,
if
%% Window larger; divide Diff among the frames and return result
NewH>OldH -> divide([{0,T},{0,Sf},{0,Ff}],Diff);
%% Window smaller; divide Diff among the frames and return
%% the inverted result (the frames should shrink)
OldH>NewH ->
{T2,Sf2,Ff2} = divide([{0,T},{0,Sf},{0,Ff}],Diff),
{-T2,-Sf2,-Ff2}
end.
%% Compute minimum window height
min_height(Flags) ->
{Bu,S,Bi,F} = Flags,
H1 = 25 + 100 + 2, % Upper pad + Trace frame + lower pad
H2 = H1 + bu(Bu) + s_bi(S,Bi) + f(F),
H3 = case rb1(Flags) of
open -> H2+10;
close -> H2
end,
H4 = case rb2(Flags) of
open -> H3+10;
close -> H3
end,
H4.
bu(close) -> 0;
bu(open) -> 30.
s_bi(close,close) -> 0;
s_bi(_,_) -> 100.
f(close) -> 0;
f(open) -> 100.
%% Try to distribute Diff as evenly as possible between E1, E2 and E3.
divide([{T,T},{S,S},{F,F}], _Diff) ->
{T,S,F};
divide(L, Diff) ->
[{T,Tmax},{S,Smax},{F,Fmax}] = L,
%% Count how many elements in L can still be filled
Rem = remaining(L),
%% Divide Diff by Rem
D = Diff div Rem,
if
%% All of Diff has been distributed
D =:= 0 -> {T,S,F};
true ->
%% For each element, try to add as much as possible of D
{NewT,Dt} = divide2(D,T,Tmax),
{NewS,Ds} = divide2(D,S,Smax),
{NewF,Df} = divide2(D,F,Fmax),
%% Recur with a list of elements with new current values
%% and decreased Diff
divide([{NewT,Tmax},{NewS,Smax},{NewF,Fmax}],
(Diff rem Rem)+Dt+Ds+Df)
end.
%% Count the number of 'non-filled' elements in L, ie where Curr<Max.
remaining([]) -> 0;
remaining([{Max,Max}|T]) -> remaining(T);
remaining([_H|T]) -> 1 + remaining(T).
divide2(_Diff, Max, Max) -> {Max,0};
divide2(Diff, Curr, Max) ->
New = Curr+Diff,
if
New>Max -> {Max,New-Max};
true -> {New,0}
end.
%%--Resizing using resize bars----------------------------------------
%% Motions event will move the ResizeBar accordingly in Win, when
%% the mouse button is released, the window is reconfigured.
resize(WinInfo, ResizeBar) ->
%% Get window dimensions
W = gs:read(WinInfo#winInfo.window, width),
H = gs:read(WinInfo#winInfo.window, height),
%% Call resize loop with min and max for the resize bars derived
%% from the window dimensions
resizeloop(WinInfo, ResizeBar, null,
rblimits('RB1',W,H),
rblimits('RB2',W,H),
rblimits('RB3',W,H)).
resizeloop(WI, RB, Prev, {Min1,Max1}, {Min2,Max2}, {Min3,Max3}) ->
receive
{gs,_,motion,_,[_,Y]} when RB =:= 'RB1', Y > Min1, Y < Max1 ->
gs:config('RB1', {y,Y}),
resizeloop(WI, RB, Y, {Min1,Max1}, {Min2,Max2}, {Min3,Max3});
{gs,_,motion,_,_} when RB =:= 'RB1' ->
resizeloop(WI, RB, Prev, {Min1,Max1}, {Min2,Max2}, {Min3,Max3});
{gs,_,motion,_,[_,Y]} when RB =:= 'RB2', Y > Min2, Y < Max2 ->
gs:config('RB2', {y,Y}),
resizeloop(WI, RB, Y, {Min1,Max1}, {Min2,Max2}, {Min3,Max3});
{gs,_,motion,_,_} when RB =:= 'RB2' ->
resizeloop(WI, RB, Prev, {Min1,Max1}, {Min2,Max2}, {Min3,Max3});
{gs,_,motion,_,[X,_]} when RB =:= 'RB3', X > Min3, X < Max3 ->
gs:config('RB3', {x,X}),
resizeloop(WI, RB, X, {Min1,Max1}, {Min2,Max2}, {Min3,Max3});
{gs,_,motion,_,_} when RB =:= 'RB3' ->
resizeloop(WI, RB, Prev, {Min1,Max1}, {Min2,Max2}, {Min3,Max3});
{gs,_,buttonrelease,_,_} ->
resize_win(WI, RB, Prev)
end.
resize_win(_WinInfo, _RB, null) -> ignore;
resize_win(WinInfo, 'RB1', Y) ->
{_Bu,S,Bi,F} = Flags = WinInfo#winInfo.flags,
H = gs:read('CodeArea', height),
Diff = H-(Y-25),
%% Resize Code, Evaluator and Binding areas
resize_code_area(WinInfo, height, -Diff),
if
S =:= close, Bi =:= close, F =:= open ->
resize_trace_area(open, height, Diff);
true ->
resize_eval_area(S, height, Diff),
resize_bind_area(Bi, height, Diff)
end,
%% Resize vertical resize bar
case rb3(Flags) of
open -> gs:config('RB3', {height,gs:read('RB3',height)+Diff});
close -> ignore
end,
%% Adjust the frames y coordinates
config_v();
resize_win(WinInfo, 'RB2', Y) ->
{_Bu,S,Bi,F} = Flags = WinInfo#winInfo.flags,
Prev = gs:read('TraceArea',y),
Diff = Prev-(Y+10),
%% Resize Trace, Evaluator and Binding areas
resize_trace_area(F, height, Diff),
resize_eval_area(S, height, -Diff),
resize_bind_area(Bi, height, -Diff),
%% Resize vertical resize bar
case rb3(Flags) of
open -> gs:config('RB3', {height,gs:read('RB3',height)-Diff});
close -> ignore
end,
%% Adjust the frames y coordinates
config_v();
resize_win(WinInfo, 'RB3', X) ->
{_Bu,S,Bi,_F} = WinInfo#winInfo.flags,
Prev = gs:read('BindArea', x),
Diff = Prev-(X+10),
%% Resize Binding and Trace areas
resize_bind_area(Bi, width, Diff),
resize_eval_area(S, width, -Diff),
%% Adjust the frames x coordinates
config_h().
%% Given the window dimensions, return the limits for a resize bar.
rblimits('RB1',_W,H) ->
%% Code frame should not have height <100
Min = 126,
%% Max is decided by a minimum distance to 'RB2'
%% unless 'RB2' is invisible and 'CodeArea' is visible
%% (=> EvalFrame and BindFrame invisible) in which case
%% TraceFrame should not have height <100
RB2 = gs:read('RB2',height),
FF = gs:read('TraceArea',height),
Max = case RB2 of
0 when FF =/= 0 ->
H-112;
_ ->
Y = gs:read('RB2',y),
erlang:max(Min,Y-140)
end,
{Min,Max};
rblimits('RB2',_W,H) ->
%% TraceFrame should not have height < 100
Max = H-112,
%% Min is decided by a minimum distance to 'RB1'
Y = gs:read('RB1',y),
Min = erlang:min(Max,Y+140),
{Min,Max};
rblimits('RB3',W,_H) ->
%% Neither CodeArea nor BindArea should occupy
%% less than 1/3 of the total window width and EvalFrame should
%% be at least 289 pixels wide
{erlang:max(round(W/3),289),round(2*W/3)}.
%%====================================================================
%% 'Go To Line' and 'Search' help windows
%%====================================================================
helpwin(gotoline, WinInfo, GS, Coords) ->
spawn_link(?MODULE, helpwin, [gotoline, WinInfo, GS, Coords,self()]);
helpwin(search, WinInfo, GS, Coords) ->
spawn_link(?MODULE, helpwin, [search, WinInfo, GS, Coords, self()]).
helpwin(Type, WinInfo, GS, Coords, AttPid) ->
{_Mod, Editor} = WinInfo#winInfo.editor,
Data = case Type of
gotoline -> null;
search ->
{{1, 0}, false}
end,
Win = helpwin(Type, GS, Coords),
helpwin_loop(Type, AttPid, Editor, Data, Win).
helpwin_loop(Type, AttPid, Editor, Data, Win) ->
receive
{gs, _Id, destroy, _Data, _Arg} ->
helpwin_stop(Type, AttPid, Editor, Data),
true;
{gs, _Id, keypress, _Data, ['Return'|_]} ->
gs:config(btn(Win), flash),
Data2 = helpwin_action(Type, default,
AttPid, Editor, Data, Win),
helpwin_loop(Type, AttPid, Editor, Data2, Win);
{gs, _Id, keypress, _Data, _Arg} ->
helpwin_loop(Type, AttPid, Editor, Data, Win);
{gs, _Id, click, _Data, ["Clear"]} ->
gs:config(ent(Win), {delete, {0,last}}),
Data2 = helpwin_clear(Type, AttPid, Editor, Data, Win),
helpwin_loop(Type, AttPid, Editor, Data2, Win);
{gs, _Id, click, _Data, ["Close"]} ->
helpwin_stop(Type, AttPid, Editor, Data),
true;
{gs, _Id, click, Action, _Arg} ->
Data2 =
helpwin_action(Type, Action, AttPid, Editor, Data, Win),
helpwin_loop(Type, AttPid, Editor, Data2, Win)
end.
helpwin_stop(gotoline, _AttPid, _Editor, _Data) ->
ignore;
helpwin_stop(search, _AttPid, Editor, {Pos, _CS}) ->
unmark_string(Editor, Pos).
helpwin_clear(gotoline, _AttPid, _Editor, Data, _Win) ->
Data;
helpwin_clear(search, _AttPid, Editor, {Pos, CS}, Win) ->
unmark_string(Editor, Pos),
gs:config(lbl(Win), {label, {text,""}}),
{{1, 0}, CS}.
helpwin_action(gotoline, default, AttPid, _Editor, Data, Win) ->
case string:strip(gs:read(ent(Win), text)) of
"" -> ignore;
Str ->
case catch list_to_integer(Str) of
{'EXIT', _Reason} -> ignore;
Line -> AttPid ! {gui, {gotoline, Line}}
end
end,
Data;
helpwin_action(search, case_sensitive, _AttPid, _Ed, {Pos, CS}, _Win) ->
Bool = if CS =:= true -> false; CS =:= false -> true end,
{Pos, Bool};
helpwin_action(search, default, _AttPid, Editor, {Pos, CS}, Win) ->
gs:config(lbl(Win), {label, {text, ""}}),
unmark_string(Editor, Pos),
case gs:read(ent(Win), text) of
"" -> {Pos, CS};
Str ->
gs:config(lbl(Win), {label, {text,"Searching..."}}),
Str2 = lowercase(CS, Str),
case search(Str2, Editor, gs:read(Editor, size), Pos, CS) of
{Row, Col} ->
gs:config(lbl(Win), {label, {text,""}}),
mark_string(Editor, {Row, Col}, Str),
{{Row, Col}, CS};
not_found ->
gs:config(lbl(Win), {label, {text,"Not found"}}),
{Pos, CS}
end
end.
search(_Str, _Editor, Max, {Row, _Col}, _CS) when Row>Max ->
not_found;
search(Str, Editor, Max, {Row, Col}, CS) ->
SearchIn = lowercase(CS, gs:read(Editor,
{get,{{Row,Col+1},{Row,lineend}}})),
case string:str(SearchIn, Str) of
0 -> search(Str, Editor, Max, {Row+1, 0}, CS);
N -> {Row, Col+N}
end.
lowercase(true, Str) -> Str;
lowercase(false, Str) ->
[if Char >= $A, Char =< $Z -> Char+32;
true -> Char
end || Char <- Str].
mark_string(Editor, {Row, Col}, Str) ->
Between = {{Row,Col}, {Row,Col+length(Str)}},
Font = dbg_ui_win:font(bold),
gs:config(Editor, [{vscrollpos, Row-5},
{font_style, {Between, Font}},
{fg, {Between, red}}]).
unmark_string(Editor, {Row, Col}) ->
Between = {{Row,Col}, {Row,lineend}},
Font = dbg_ui_win:font(normal),
gs:config(Editor, [{vscrollpos, Row-5},
{font_style, {Between, Font}},
{fg, {Between, black}}]).
helpwin(Type, GS, {X, Y}) ->
W = 200, Pad = 10, Wbtn = 50,
Title = case Type of search -> "Search"; gotoline -> "Go To Line" end,
Win = gs:window(GS, [{title, Title}, {x, X}, {y, Y}, {width, W},
{destroy, true}]),
Ent = gs:entry(Win, [{x, Pad}, {y, Pad}, {width, W-2*Pad},
{keypress, true}]),
Hent = gs:read(Ent, height),
Font = dbg_ui_win:font(normal),
{Ybtn, Lbl} =
case Type of
search ->
Ycb = Pad+Hent,
gs:checkbutton(Win, [{label, {text, "Case Sensitive"}},
{font, Font},
{align, w},
{x, Pad}, {y, Ycb},
{width, W-2*Pad}, {height, 15},
{data, case_sensitive}]),
Ylbl = Ycb+15,
{Ylbl+Hent+Pad,
gs:label(Win, [{x, Pad}, {y, Ylbl},
{width, W-2*Pad}, {height, Hent}])};
gotoline -> {Pad+Hent+Pad, null}
end,
BtnLbl = case Type of search -> "Search"; gotoline -> "Go" end,
Btn = gs:button(Win, [{label, {text, BtnLbl}}, {font, Font},
{x, W/2-3/2*Wbtn-Pad}, {y, Ybtn},
{width, Wbtn}, {height, Hent},
{data, default}]),
gs:button(Win, [{label, {text, "Clear"}}, {font, Font},
{x, W/2-1/2*Wbtn}, {y, Ybtn},
{width, Wbtn}, {height, Hent}]),
gs:button(Win, [{label, {text, "Close"}}, {font, Font},
{x, W/2+1/2*Wbtn+Pad}, {y, Ybtn},
{width, Wbtn}, {height, Hent}]),
H = Ybtn+Hent+Pad,
gs:config(Win, [{height, H}, {map, true}]),
{Ent, Lbl, Btn}.
ent(Win) -> element(1, Win).
lbl(Win) -> element(2, Win).
btn(Win) -> element(3, Win).
