Fixed instability when there is no parallel toolbox.

Author: elgar328

tools/ProgressBar/ProgressBar.m

@@ -60,7 +60,7 @@
 %
 %
 % created 2023. 07. 14.
-% edited 2023. 07. 19.
+% edited 2023. 07. 30.
 % author Cho HyunGwang
 % 
 % https://github.com/elgar328/matlab-code-examples/tree/main/tools/ProgressBar
@@ -106,6 +106,7 @@
  % ------------------------ Properties for GUI -------------------------
  properties (Access = private, Transient)
  bar_ratio = 0;
+ prev_count_time
  end
  properties (SetAccess = immutable, Hidden = true, Transient)
  fig_handle
@@ -158,7 +159,11 @@
  end
  % ---------------------------- Counter ----------------------------
  function count(obj)
- if obj.no_parallel_toolbox || isempty(getCurrentJob)
+ % The || operator was not used intentionally.
+ % Short circuit does not work normally under certain conditions.
+ if obj.no_parallel_toolbox
+ obj.localIncrement(); % Serial processing
+ elseif isempty(getCurrentJob)
  obj.localIncrement(); % Serial processing
  else
  send(obj.Queue, true); % Parallel processing
@@ -179,11 +184,9 @@ function delete(obj)
  methods (Access = private)
  % ------------------------- localIncrement ------------------------
  function localIncrement(obj)
- persistent prev_count_time
-
  if isempty(obj.start_time) % at first count
  obj.start_time = datetime();
- prev_count_time = datetime();
+ obj.prev_count_time = datetime();
  if strcmp(obj.ui_type,'cli')
  update_cli("", true, true);
  end
@@ -192,11 +195,11 @@ function localIncrement(obj)
  obj.counter = 1 + obj.counter;
  obj.ratio = obj.counter/obj.N;
 
- if (seconds(datetime()-prev_count_time) < obj.frame_interval_limit) ...
+ if (seconds(datetime()-obj.prev_count_time) < obj.frame_interval_limit) ...
  && (obj.counter ~= obj.N)
  return
  end
- prev_count_time = datetime();
+ obj.prev_count_time = datetime();
 
  switch obj.ui_type
  case 'cli'