Major update of all demo programs to use new PEP8 bindings, etc

DemoPrograms old/Demo_Media_Player.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python
+import sys
+if sys.version_info[0] >= 3:
+    import PySimpleGUI as sg
+    # import PySimpleGUIQt as sg      # portable to QT
+else:
+    import PySimpleGUI27 as sg
+
+#
+# An Async Demonstration of a media player
+# Uses button images for a super snazzy look
+# See how it looks here:
+# https://user-images.githubusercontent.com/13696193/43159403-45c9726e-8f50-11e8-9da0-0d272e20c579.jpg
+#
+def MediaPlayerGUI():
+    background = '#F0F0F0'
+    # Set the backgrounds the same as the background on the buttons
+    sg.SetOptions(background_color=background, element_background_color=background)
+    # Images are located in a subfolder in the Demo Media Player.py folder
+    image_pause = './ButtonGraphics/Pause.png'
+    image_restart = './ButtonGraphics/Restart.png'
+    image_next = './ButtonGraphics/Next.png'
+    image_exit = './ButtonGraphics/Exit.png'
+
+    # A text element that will be changed to display messages in the GUI
+
+    ImageButton = lambda image_filename, key:sg.Button('', button_color=(background,background), image_filename=image_filename, image_size=(50, 50), image_subsample=2, border_width=0, key=key)
+
+    # define layout of the rows
+    layout= [[sg.Text('Media File Player', font=("Helvetica", 25))],
+             [sg.Text('', size=(15, 2), font=("Helvetica", 14), key='output')],
+             [ImageButton(image_restart, key='Restart Song'), sg.Text(' ' * 2),
+              ImageButton(image_pause, key='Pause'),
+                                sg.Text(' ' * 2),
+              ImageButton(image_next, key='Next'),
+                                sg.Text(' ' * 2),
+              sg.Text(' ' * 2),ImageButton(image_exit, key='Exit')],
+             ]
+
+    # Open a form, note that context manager can't be used generally speaking for async forms
+    window = sg.Window('Media File Player', auto_size_text=True, default_element_size=(20, 1),
+                       font=("Helvetica", 25)).Layout(layout)
+    # Our event loop
+    while(True):
+        event, values = window.Read(timeout=100)        # Poll every 100 ms
+        if event == 'Exit' or event is None:
+            break
+        # If a button was pressed, display it on the GUI by updating the text element
+        if event != sg.TIMEOUT_KEY:
+            window.FindElement('output').Update(event)
+
+MediaPlayerGUI()
+