New featrure - OneLineProgressMeters, New Demo_Progress_Meters

Demo_Progress_Meters.py

@@ -0,0 +1,45 @@
+from time import sleep
+import PySimpleGUI as sg
+
+"""
+    Demonstration of multiple OneLineProgressMeter's
+    
+    Shows how 2 progress meters can be running at the same time.
+    Note -- If the user wants to cancel a meter, it's important to use the "Cancel" button, not the X
+    If the software determined that a meter should be cancelled early, 
+        calling OneLineProgresMeterCancel(key) will cancel the meter with the matching key
+"""
+
+sg.ChangeLookAndFeel('Dark')
+
+layout = [
+            [sg.T('One-Line Progress Meter Demo', font=('Any 18'))],
+            [sg.T('Outer Loop Count', size=(15,1), justification='r'), sg.In(default_text='100', size=(5,1), key='CountOuter', do_not_clear=True),
+             sg.T('Delay'), sg.In(default_text='10', key='TimeOuter', size=(5,1), do_not_clear=True), sg.T('ms')],
+            [sg.T('Inner Loop Count', size=(15,1), justification='r'), sg.In(default_text='100', size=(5,1), key='CountInner', do_not_clear=True) ,
+             sg.T('Delay'), sg.In(default_text='10', key='TimeInner', size=(5,1), do_not_clear=True), sg.T('ms')],
+            [sg.SimpleButton('Show', pad=((0,0), 3), bind_return_key=True), sg.T('me the meters!')]
+          ]
+
+form = sg.FlexForm('One-Line Progress Meter Demo')
+form.Layout(layout)
+
+while True:
+    button, values = form.Read()
+    if button is None:
+        break
+    if button == 'Show':
+        max_outer = int(values['CountOuter'])
+        max_inner = int(values['CountInner'])
+        delay_inner = int(values['TimeInner'])
+        delay_outer = int(values['TimeOuter'])
+        for i in range(max_outer):
+            if not sg.OneLineProgressMeter('Outer Loop', i+1, max_outer, 'outer'):
+                break
+            sleep(delay_outer/1000)
+            for j in range(max_inner):
+                if not sg.OneLineProgressMeter('Inner Loop', j+1, max_inner, 'inner'):
+                    break
+                sleep(delay_inner/1000)
+
+exit(69)

PySimpleGUI.py

@@ -3127,7 +3127,7 @@ def EasyProgressMeterCancel(title, *args):
 _one_line_progress_meters = {}
 
 # ============================== OneLineProgressMeter  =====#
-def OneLineProgressMeter(title, current_value, max_value, *args, orientation=None, bar_color=(None,None), button_color=None, size=DEFAULT_PROGRESS_BAR_SIZE, scale=(None, None), border_width=None, key=None):
+def OneLineProgressMeter(title, current_value, max_value, key, *args, orientation=None, bar_color=(None,None), button_color=None, size=DEFAULT_PROGRESS_BAR_SIZE, scale=(None, None), border_width=None):
 
     global _one_line_progress_meters
 
@@ -3162,7 +3162,6 @@ def OneLineProgressMeter(title, current_value, max_value, *args, orientation=Non
     if current_value >= meter_data.MaxValue or not rc:
         del _one_line_progress_meters[key]
         return False
-
     return rc           # return whatever the update told us