PySimpleGUI/DemoPrograms/Demo_Image_Resize_and_Base64_Encode.pyw

import PySimpleGUI as sg
from PIL import Image
import os
import base64

"""
    Demo Image Resize and Base64 Encode

    A quick little utility that will resize an image and also Base64 Encode it.

    Base64 is particularly good to use to make icons or other images that you include in your sourcecode.
    
    Use this Demo to help you code your PySimpleGUI programs.  Here's how:
    1. Resize your image
    2. Paste the base64 encoded byte-string into your code as a variable
    3. Use your variable for things like an icon, an image for buttons, etc.

    Copyright 2021 PySimpleGUI
"""

def resize(input_file, output_file, size):
    image = Image.open(input_file)
    width, height = image.size
    print(f"The original image size is {width} wide x {height} high")
    new_width, new_height = size
    scale = min(new_height / height, new_width / width)
    resized_image = image.resize((int(width * scale), int(height * scale)), Image.ANTIALIAS)
    # resized_image = image.resize(size)
    width, height = resized_image.size
    print(f"The resized image size is {width} wide x {height} high")
    resized_image.save(output_file)

def convert_file_to_base64(filename):
    try:
        contents = open(filename, 'rb').read()
        encoded = base64.b64encode(contents)
        sg.clipboard_set(encoded)
        if not sg.user_settings_get_entry('-autoclose-'):
            sg.popup('Copied to your clipboard!', 'Keep program open until you have pasted the base64 bytestring', auto_close=True, auto_close_duration=4)
    except Exception as error:
        sg.popup_error('Cancelled - An error occurred', error)

def main():
    layout = [  [sg.Text('Image Resizer')],
                [sg.Frame('Input Image', [[sg.Input(key='-IN-', enable_events=True), sg.FileBrowse()],
                [sg.T('Original size'), sg.T(k='-ORIG WIDTH-'), sg.T('X'), sg.T(k='-ORIG HEIGHT-')]])],
                [sg.Frame('New Size', [[sg.In(50, s=4, k='-WIDTH-'), sg.T('X'), sg.In(50, s=4, k='-HEIGHT-')]])],
                [sg.CBox('Encode to Base64 and leave on Clipboard', default=True,k='-BASE64-')],
                [sg.CBox('Autoclose Immediately When Done', default=sg.user_settings_get_entry('-autoclose-', True if sg.running_windows() else False),k='-AUTOCLOSE-')],
                [sg.Button('Resize', bind_return_key=True), sg.Button('Exit')],
                [sg.T('Note - on some systems, autoclose cannot be used\nbecause the clipboard is cleared by tkinter')],]

    window = sg.Window('Resize Image', layout, icon=image_resize_icon, right_click_menu=sg.MENU_RIGHT_CLICK_EDITME_VER_LOC_EXIT, enable_close_attempted_event=True)

    while True:
        event, values = window.read()
        # print(event, values)
        if event in (sg.WIN_CLOSED, sg.WIN_CLOSE_ATTEMPTED_EVENT, 'Exit'):
            sg.user_settings_set_entry('-autoclose-', values['-AUTOCLOSE-'])
            break
        sg.user_settings_set_entry('-autoclose-', values['-AUTOCLOSE-'])
        infile = values['-IN-']
        if event == '-IN-':
            if os.path.isfile(infile):
                image = Image.open(infile)
                window['-ORIG WIDTH-'].update(image.size[0])
                window['-ORIG HEIGHT-'].update(image.size[1])
        if event == 'Resize':
            if os.path.isfile(infile):
                infilename = os.path.basename(infile)
                infilenameonly, infileext = os.path.splitext(infilename)
                try:
                    width, height = int(values['-WIDTH-']), int(values['-HEIGHT-'])
                    outfile = f'{infilenameonly}{width}x{height}{infileext}'
                    outfullfilename = os.path.join(os.path.dirname(infile), outfile)
                    resize(input_file=infile, output_file=outfullfilename, size=(width, height))
                    if values['-BASE64-']:
                        convert_file_to_base64(outfullfilename)
                except Exception as e:
                    sg.popup_error_with_traceback('Error resizing or converting', 'Error encountered during the resize or Base64 encoding', e)
                sg.popup_quick_message('DONE!', font='_ 40', background_color='red', text_color='white')
                if sg.user_settings_get_entry('-autoclose-'):
                    break
        elif event == 'Version':
            sg.popup_scrolled(sg.get_versions(), non_blocking=True)
        elif event == 'Edit Me':
            sg.execute_editor(__file__)
        elif event == 'File Location':
            sg.popup_scrolled('This Python file is:', __file__)
    window.close()


if __name__ == '__main__':
    image_resize_icon = b'iVBORw0KGgoAAAANSUhEUgAAADIAAAAyCAYAAAAeP4ixAAAJaklEQVR4nMWabYxU1RnHf885d+7s7uxrBWFFEClagqxYX1upWm3Q2i+KiaRNqwg0VWljtVjR2pT4oZFGa0pSSxt1gdjEBk0x0cZi1QpCGrUmwgKlVkWBZdcX2GWX2Z25L+fphzu7vOzMujO7q/8PM3fu3Oee53/Oc5/zP8+5wjjgwPpZp6RNakIc0aQqNQAi2mc9uvIu/PT0RXsOjXWbMhY3OdR6ztTQmG+I43IHc0GngjSCVilik4Y0BsmBdoPsN7BdDVtSzm09Zcmu/aP1oWIi76yema6vq/62ERY51SvTKdsoArFTYgeqigLJR9KSACKCNWCNoApB5LqAV42wrutI/6azf/pu/nMhoisxndPPXWhEl1sjF1ojBJHDuUqaB2PA90zSAbH+W1QenvjhjqflAcq6Y1lE9j9xzty0Nb+xRq4BCCL9LJOy4HuJO3Gsm/LOrZi6dNf2kdqOmEjH2pYfW+HXKc805IIKu3+EqPINYeSOxMr9zYvbHh2JzWcS2bv2jKoa6n+X8uTWKE6egc8D1giehTDSP/XRc+eZiz/MDXf9sEQ+2jC71h21T2bS5vq+wKEKhY+x9Lm4WyKIQI1v6A/cRjLxzZMW7j46jEVx6Norqj7Ww09Vp8312bxD4xBQTCoDxhvOdJRQ1IVo2Jc4aH0yaUM2757NyZe+d+bizUVHxit1u049vDozSCLAb76IzOzv4zWdjXhVJETGY2QUjfqJut6jb89fyLf/i2zepyZtrtf84dXArcWsinbrwcdbllWlzaNB5HBRQHrK12ma/wfEqx4Hx0tD4zzdL91Bbv9mjOfje4ZcoMtOW7pjzcnXDiGyr7WlJS1sFZH62Cm4iKZrHiN9+jyiIx+Q3bmOuPcAiMGkasH6xW6DVBp5qmAsmZaleI0zCD5+m8N/uxlQrDGoao+zMq/55h07jzc7IbR0w422s3fPb9O+qe8PHKhD/Fq8xukAZNtaybatS0LLhSCGouGloChiUpVxiXKI9am/dCWpxhmY6gm4vo+InVDtm/q+vHtEN3CtLCQuSqSzZ88Nvi/z+0+YJ4TBHnchYn1sZhJ1F92NyZxawhMlaN9Gduf6AtkyIUJ09GDh2CLGS/pLIBc40imZ39HbsgDanhlC5J3VM9OI3jt8NhLUhfiTLqD6rOuG9cVrPJPsf56COKwozqTgh8YhGucH3To2/nrfO6tnPjegzQaJ1NWm56dS5vwRyY6TetnlDtP/7nNJM2JAIeh4HeI8BfFbPpFUpkAkj8YBx3dwECl+ypxfV5ueDzx/AhHELLFGCCtIqeLXo2GWnjceQsQmZMQg1q+IBKqITReOHcWeQ2uEUMwSCkQMwKfr5k4BvSqMytNQLneYfPs2xHjUfnUZDZf+CmwKsX7lJEaIMHIoetW+dXOnQIFIqNFlVSnbEJerBV3EkS33k3v/BQAyLYupv/jnqMaFnhw/xA6qU7bBRNFlUCCCmisqyvtikklr8wpyezcBkGlZQv1Fd6MlQmIsIQLWyOUARldiVPW88lStDH6L8dA4oHvzvcfInLuUugvuQF1c+hZjgMRnOU9XYkz7jFlNAlPLCSuN+weOUBcmef4kMumpVyTnx3FUCkvqae0zZjV54ryJCo2qI2tQrE/Q8SY9r68i7j2ABkcLWQqIA468dj9Bx+sEn7SR1BsqS78jQcHnRnHeRM/GNKkhPfJ+EzTOkd3ROjTFGotGebK7/pyMhikprscEmriT1pgmT42pBvXKiwApSPlifw3z31hDQRBrjVSbY6dKYewWUBoHaJwr0pyiUS6RIuXes/BtxLl+0LikvyKVCb8hLTqqpl9NzazvJlJ9cJ5REI9My+Lkv3IgABrHzvV7saVLHHkjeEWHRUwiO0YDF2Myp9J45UOITeM1TE/kDKAak5rwFeq/dh+oI+h8g+jQf8vgQV4sXUZN9AnQLUVnRE1ImFESMQaX6yL3wUtAYdK8+J5EATiHmCRhqB47HhGRxOfuTMZ9bKa8v6dLRPbZUtFj7BikUEnkzGu/PEnO3JOkaB2YOMur0FgDiOxr2LW728gDOKduuzVFRkRBjIeMdkQgec5cQPeW+04gU3fJPRXLGWsEQd+WB3AGwAivFp8PNZkLxmpSEwsuTMjs/TsAtXN/RN2Fd0IFcibxWTfDgPo13tb+MD5SNLwG1hdjgGSRFKJBL10v30n//zYCSnrKvKTDRqguIAmr/jA+Eua9rVBYWE27ZXt7R2vLKynPLIiL1nVHO5coiCXTshivceYAK5BEcA4uospAyjPEoXt52u3b2+G4FWKsrjV2smCoDwqFCr/Guco4uRjbMI36S+4d9rKkyDCyEEuUr7YO/B4kMqVOX+zs1bf8lFxwwrpdI3AOLLggS0VMjMVlOzi6/TG8xi+XvCw6tIuot/0z073vCUGob02uc/8YQkQW7g4OPtGyCnh6sBgqksS1C0cZXEn1pffNhxm+I7QgQkuXYwes1ciDsnB3MIQIQHNd28bOoy0vVvvm6qS2JYkGCvsg3YBX20wu7C/roSzmbEmIJHosyh2XKU8kXuUb+vLxi811O589/vwJRGQhccfjsjwfum3WSH3sBA2O4vo+wtY2U3POTaiLxmU9rnEeDbMAmNpmMrN/AIDLHSpU5gVrhHzoekTN8uOrjEPpFnDw8Tm3VaXtmqSInaf6rOtovHzVmKXhEcPFdG9eQf97zxeK2EIu724/7Yc7/3jypSUDtuOJljU1Vea2vrwDF5Ge9k2qz7oBr3HGOK43BqqLOaKud+nbs4F8+1bEpKhJG/rybk3zkrZlxSxLLuFypucu8vWTMmmzIJv3yH34Crl9/8R4NeO80QNohAuzhULd4EbPxpz0/KyUyfBbb7+fXasZu77aNzf0f0Fbb9W+oS9wfz2UjRfN+UkFW28D2Lv2jKpq6h/xPbn9i9gMDUJdM2ly/13yneFfJBhxfHSunXObMfKgb01jLnDjNibCwPa0doWR+0WxB7uU3Yix/7E55/qeWeVZrgUIIx0zQgKkCi8MRDEvqOqKyUva2sqxLwuqSGfrnButkeXGyMXWCmGkFYecNULKE+JYiZ2+IfDwxFvanhEpt65TIXaunO2fMsO72sIi5/RbaU+aRKTMl2qUfKRdBnk5NvH6ybmqTXLrW2El/oxJDv30yZbTnZN5zukVwFxVnTbca04iss8gb2PYYoxum3BT24HR+jAuk8EX8eLZ/wFhy2TPNmJizQAAAABJRU5ErkJggg=='

    main()