Allow window resizing when in single photo mode. Updated the PIL resizing to much more recent resizing code.
This commit is contained in:
PySimpleGUI
parent
5035d24f2c
commit
854bdccdd3
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@ -1,8 +1,12 @@
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import PySimpleGUI as sg
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import datetime
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import PIL.Image, PIL.ImageTk
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import PIL
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from PIL import Image
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import random
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import os
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import io
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import base64
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"""
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Another simple Desktop Widget using PySimpleGUI
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@ -16,17 +20,76 @@ import os
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* How long to show the image and if you wnt this time to vary semi-randomly
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* Folder containing your images
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Copyright 2021 PySimpleGUI
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Copyright 2021, 2023 PySimpleGUI
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"""
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ALPHA = 0.9 # Initial alpha until user changes
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refresh_font = sg.user_settings_get_entry('-refresh font-', 'Courier 8')
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def convert_to_bytes(file_or_bytes, resize=None):
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image = PIL.Image.open(file_or_bytes)
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image.thumbnail(resize)
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photo_img = PIL.ImageTk.PhotoImage(image)
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return photo_img
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def make_square(im, fill_color=(0, 0, 0, 0)):
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x, y = im.size
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size = max(x, y)
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new_im = Image.new('RGBA', (size, size), fill_color)
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new_im.paste(im, (int((size - x) / 2), int((size - y) / 2)))
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return new_im
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def get_image_size(source):
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if isinstance(source, str):
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image = PIL.Image.open(source)
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elif isinstance(source, bytes):
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image = PIL.Image.open(io.BytesIO(base64.b64decode(source)))
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else:
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image = PIL.Image.open(io.BytesIO(source))
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width, height = image.size
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return (width, height)
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def convert_to_bytes(source, size=(None, None), subsample=None, zoom=None, fill=False):
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"""
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Will convert into bytes and optionally resize an image that is a file or a base64 bytes object.
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Turns into PNG format in the process so that can be displayed by tkinter
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:param source: either a string filename or a bytes base64 image object
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:type source: (Union[str, bytes])
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:param size: optional new size (width, height)
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:type size: (Tuple[int, int] or None)
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:param subsample: change the size by multiplying width and height by 1/subsample
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:type subsample: (int)
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:param zoom: change the size by multiplying width and height by zoom
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:type zoom: (int)
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:param fill: If True then the image is filled/padded so that the image is square
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:type fill: (bool)
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:return: (bytes) a byte-string object
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:rtype: (bytes)
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"""
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# print(f'converting {source} {size}')
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if isinstance(source, str):
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image = PIL.Image.open(source)
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elif isinstance(source, bytes):
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image = PIL.Image.open(io.BytesIO(base64.b64decode(source)))
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else:
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image = PIL.Image.open(io.BytesIO(source))
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width, height = image.size
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scale = None
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if size != (None, None):
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new_width, new_height = size
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scale = min(new_height/height, new_width/width)
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elif subsample is not None:
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scale = 1/subsample
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elif zoom is not None:
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scale = zoom
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resized_image = image.resize((int(width * scale), int(height * scale)), Image.ANTIALIAS) if scale is not None else image
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if fill and scale is not None:
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resized_image = make_square(resized_image)
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# encode a PNG formatted version of image into BASE64
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with io.BytesIO() as bio:
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resized_image.save(bio, format="PNG")
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contents = bio.getvalue()
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encoded = base64.b64encode(contents)
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return encoded
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def choose_theme(location):
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@ -43,6 +106,15 @@ def choose_theme(location):
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else:
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return None
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def reset_settings():
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sg.user_settings_set_entry('-time per image-', 60)
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sg.user_settings_set_entry('-random time-', False)
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sg.user_settings_set_entry('-image size-', (None, None))
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sg.user_settings_set_entry('-image_folder-', None)
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sg.user_settings_set_entry('-location-', (None, None))
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sg.user_settings_set_entry('-single image-', None)
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sg.user_settings_set_entry('-alpha-', ALPHA)
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def make_window(location):
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alpha = sg.user_settings_get_entry('-alpha-', ALPHA)
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@ -61,7 +133,7 @@ def make_window(location):
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layout = [[sg.Image(k='-IMAGE-', enable_events=True)],
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[sg.pin(sg.Column(refresh_info, key='-REFRESH INFO-', element_justification='c', visible=sg.user_settings_get_entry('-show refresh-', True)))]]
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window = sg.Window('Photo Frame', layout, location=location, no_titlebar=True, grab_anywhere=True, margins=(0, 0), element_justification='c', element_padding=(0, 0), alpha_channel=alpha, finalize=True, right_click_menu=right_click_menu, keep_on_top=True, enable_close_attempted_event=True)
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window = sg.Window('Photo Frame', layout, location=location, no_titlebar=True, grab_anywhere=True, margins=(0, 0), element_justification='c', element_padding=(0, 0), alpha_channel=alpha, finalize=True, right_click_menu=right_click_menu, keep_on_top=True, enable_close_attempted_event=True, enable_window_config_events=True)
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return window
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@ -69,11 +141,10 @@ def make_window(location):
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def main():
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loc = sg.user_settings_get_entry('-location-', (None, None))
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sg.theme(sg.user_settings_get_entry('-theme-', None))
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window = make_window(loc)
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time_per_image = sg.user_settings_get_entry('-time per image-', 60)
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vary_randomly = sg.user_settings_get_entry('-random time-', False)
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width, height = sg.user_settings_get_entry('-image size-', (400,300))
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width, height = sg.user_settings_get_entry('-image size-', (None, None))
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image_folder = sg.user_settings_get_entry('-image_folder-', None)
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try:
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@ -82,36 +153,26 @@ def main():
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image_folder = None
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sg.user_settings_set_entry('-image_folder-', None)
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single_image = sg.user_settings_get_entry('-single image-', None)
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image_name = single_image = sg.user_settings_get_entry('-single image-', None)
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if image_folder is None and single_image is None:
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while True:
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images = None
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image_folder = sg.popup_get_folder('Choose location of your images', location=window.current_location(), keep_on_top=True)
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if image_folder is not None:
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sg.user_settings_set_entry('-image_folder-', image_folder)
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break
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else:
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if sg.popup_yes_no('No folder entered','Go you want to exit the program entirely?', keep_on_top=True) == 'Yes':
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exit()
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elif single_image is None:
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image_name = single_image = sg.popup_get_file('Choose a starting image', keep_on_top=True)
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if not single_image:
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if sg.popup_yes_no('No folder entered','Go you want to exit the program entirely?', keep_on_top=True) == 'Yes':
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exit()
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if image_folder is not None and single_image is None:
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images = os.listdir(image_folder)
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images = [i for i in images if i.lower().endswith(('.png', '.jpg', '.gif'))]
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image_name = os.path.join(image_folder, random.choice(images))
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else: # means single image is not none
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images = None
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image_name = single_image
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window = make_window(loc)
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window_size = window.size
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image_data = convert_to_bytes(image_name, (width, height))
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while True: # Event Loop
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# First update the status information
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# for debugging show the last update date time
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if single_image is None:
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image_name =random.choice(images)
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image_data = convert_to_bytes(os.path.join(image_folder, image_name), (width, height))
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window['-FOLDER-'].update(image_folder)
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else:
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image_name = single_image
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image_data = convert_to_bytes(single_image, (width, height))
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window['-FILENAME-'].update(image_name)
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window['-IMAGE-'].update(data=image_data)
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window['-REFRESHED-'].update(datetime.datetime.now().strftime("%m/%d/%Y %I:%M:%S %p"))
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# -------------- Start of normal event loop --------------
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timeout = time_per_image * 1000 + (random.randint(int(-time_per_image * 500), int(time_per_image * 500)) if vary_randomly else 0) if single_image is None else None
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event, values = window.read(timeout=timeout)
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@ -120,6 +181,28 @@ def main():
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elif event in (sg.WIN_CLOSE_ATTEMPTED_EVENT, 'Exit'):
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sg.user_settings_set_entry('-location-', window.current_location()) # The line of code to save the position before exiting
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break
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# First update the status information
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# for debugging show the last update date time
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if event == sg.TIMEOUT_EVENT:
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if single_image is None:
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image_name =random.choice(images)
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image_data = convert_to_bytes(os.path.join(image_folder, image_name))
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window['-FOLDER-'].update(image_folder)
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else:
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image_name = single_image
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image_data = convert_to_bytes(single_image, (width, height))
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window['-FILENAME-'].update(image_name)
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window['-IMAGE-'].update(data=image_data)
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window['-REFRESHED-'].update(datetime.datetime.now().strftime("%m/%d/%Y %I:%M:%S %p"))
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if event == sg.WINDOW_CONFIG_EVENT:
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new_size = window.size
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if new_size != window_size:
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print(f'resizing {new_size}')
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(width, height) = new_size
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image_data = convert_to_bytes(image_data, (width, height))
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window['-IMAGE-'].update(data=image_data)
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window.size = get_image_size(image_data)
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window_size = window.size
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if event == 'Edit Me':
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sg.execute_editor(__file__)
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elif event == 'Choose Image Folder':
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@ -175,12 +258,15 @@ def main():
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window.close()
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window = make_window(loc)
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elif event == 'Choose Single Image':
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single_image = sg.popup_get_file('Choose single image to show', history=True)
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image_name = single_image = sg.popup_get_file('Choose single image to show', history=True)
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sg.user_settings_set_entry('-single image-', single_image)
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(width, height) = get_image_size(single_image)
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sg.user_settings_set_entry('-image size-', (width, height))
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image_data = convert_to_bytes(image_name, (width, height))
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window['-IMAGE-'].update(data=image_data)
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window.size = window_size = (width, height)
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window.close()
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if __name__ == '__main__':
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# reset_settings() # if get corrupted problems, uncomment this
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main()
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