New demo - Base64 single image encode

DemoPrograms/Demo_Base64_Single_Image_Encoder.py

@@ -0,0 +1,40 @@
+import PySimpleGUI as sg
+import base64
+import pyperclip
+
+"""
+    Make base64 image from a file
+    This is usually done in order to create a Base64 image for use as an Ucon or a Button image
+    To use, either copy and paste the full path to the file or use the browse button to locate the file.
+    Once chosen, the conversion will happen automatically with the result placed on the clipboard.
+    When complete, a popup window is shown that automatically closes after 1 second so you aren't bothered with having to close it
+
+    NOTE - if you're replacing your ICO file for your window with a base64 image, you will first need to convert your icon from
+    an ICO file into a PNG file.  Encode the PNG file and then you'll be able to pass that value in your call to Window:
+
+    window = sg.Window('Window Title', layout, icon=icon)
+
+    Where icon is a variable you created using the contents of the clipboard folowing running this program.
+
+    Input: a single image file
+    Output: clipboard will contain the Base64 Byte String of the source image
+"""
+
+
+def convert_file_to_base64(filename):
+    try:
+        contents = open(filename, 'rb').read()
+        encoded = base64.b64encode(contents)
+        pyperclip.copy(str(encoded))
+        sg.popup('Copied to your clipboard!', auto_close=True, auto_close_duration=1)
+    except Exception as error:
+        sg.popup_error('Cancelled - An error occurred', error)
+
+
+if __name__ == '__main__':
+    filename = sg.popup_get_file('Source Image will be encoded and results placed on clipboard', title='Base64 Encoder')
+
+    if filename:
+        convert_file_to_base64(filename)
+    else:
+        sg.popup_cancel('Cancelled - No valid file entered')