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-rw-r--r--lib/observer/src/observer_wx.erl20
1 files changed, 17 insertions, 3 deletions
diff --git a/lib/observer/src/observer_wx.erl b/lib/observer/src/observer_wx.erl
index 453e3bdc2d..71db586845 100644
--- a/lib/observer/src/observer_wx.erl
+++ b/lib/observer/src/observer_wx.erl
@@ -22,7 +22,7 @@
-export([start/0, stop/0]).
-export([create_menus/2, get_attrib/1, get_tracer/0, get_active_node/0, get_menubar/0,
- set_status/1, create_txt_dialog/4, try_rpc/4, return_to_localnode/2]).
+ get_scale/0, set_status/1, create_txt_dialog/4, try_rpc/4, return_to_localnode/2]).
-export([init/1, handle_event/2, handle_cast/2, terminate/2, code_change/3,
handle_call/3, handle_info/2, check_page_title/1]).
@@ -91,14 +91,24 @@ get_active_node() ->
get_menubar() ->
wx_object:call(observer, get_menubar).
+get_scale() ->
+ ScaleStr = os:getenv("OBSERVER_SCALE", "1"),
+ try list_to_integer(ScaleStr) of
+ Scale when Scale < 1 -> 1;
+ Scale -> Scale
+ catch _:_ ->
+ 1
+ end.
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
init(_Args) ->
register(observer, self()),
wx:new(),
catch wxSystemOptions:setOption("mac.listctrl.always_use_generic", 1),
+ Scale = get_scale(),
Frame = wxFrame:new(wx:null(), ?wxID_ANY, "Observer",
- [{size, {850, 600}}, {style, ?wxDEFAULT_FRAME_STYLE}]),
+ [{size, {Scale * 850, Scale * 600}}, {style, ?wxDEFAULT_FRAME_STYLE}]),
IconFile = filename:join(code:priv_dir(observer), "erlang_observer.png"),
Icon = wxIcon:new(IconFile, [{type,?wxBITMAP_TYPE_PNG}]),
wxFrame:setIcon(Frame, Icon),
@@ -771,7 +781,11 @@ ensure_sasl_started(Node) ->
ensure_mf_h_handler_used(Node) ->
%% is log_mf_h used ?
- Handlers = rpc:block_call(Node, gen_event, which_handlers, [error_logger]),
+ Handlers =
+ case rpc:block_call(Node, gen_event, which_handlers, [error_logger]) of
+ {badrpc,{'EXIT',noproc}} -> []; % OTP-21+ and no event handler exists
+ Hs -> Hs
+ end,
case lists:any(fun(L)-> L == log_mf_h end, Handlers) of
false -> throw("Error: log_mf_h handler not used in sasl."),
error;