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Merge pull request #3126 from PySimpleGUI/Dev-latest 

New PIL Image Viewer that will also resize images and runs on Qt too
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PySimpleGUI 2020-07-09 05:47:00 -04:00 committed by GitHub
parent a48b1fb34e 78917db9bc
commit 66f026fbe2
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1 changed files with 12 additions and 7 deletions
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19
DemoPrograms/Demo_Image_Elem_Image_Viewer_PIL_Based.py
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@ -13,7 +13,8 @@ import base64
The key to the program is the function "convert_to_bytes" which takes a filename or a
bytes object and converts (with optional resize) into a PNG formatted bytes object that
can then be passed to an Image Element's update method
can then be passed to an Image Element's update method. This function can also optionally
resize the image.
Copyright 2020 PySimpleGUI.org
"""
@ -51,7 +52,8 @@ def convert_to_bytes(file_or_bytes, resize=None):
# First the window layout...2 columns
left_col = [[sg.Text('Folder'), sg.In(size=(25,1), enable_events=True ,key='-FOLDER-'), sg.FolderBrowse()],
[sg.Listbox(values=[], enable_events=True, size=(40,20),key='-FILE LIST-')]]
[sg.Listbox(values=[], enable_events=True, size=(40,20),key='-FILE LIST-')],
[sg.Text('Resize to'), sg.In(key='-W-', size=(5,1)), sg.In(key='-H-', size=(5,1))]]
# For now will only show the name of the file that was chosen
images_col = [[sg.Text('You choose from the list:')],
@ -59,7 +61,7 @@ images_col = [[sg.Text('You choose from the list:')],
[sg.Image(key='-IMAGE-')]]
# ----- Full layout -----
layout = [[sg.Column(left_col), sg.VSeperator(),sg.Column(images_col, element_justification='c')]]
layout = [[sg.Column(left_col, element_justification='c'), sg.VSeperator(),sg.Column(images_col, element_justification='c')]]
# --------------------------------- Create Window ---------------------------------
window = sg.Window('Multiple Format Image Viewer', layout,resizable=True)
@ -85,10 +87,13 @@ while True:
try:
filename = os.path.join(values['-FOLDER-'], values['-FILE LIST-'][0])
window['-TOUT-'].update(filename)
window['-IMAGE-'].update(data=convert_to_bytes(filename))
except:
if values['-W-'] and values['-H-']:
new_size = int(values['-W-']), int(values['-H-'])
else:
new_size = None
window['-IMAGE-'].update(data=convert_to_bytes(filename, resize=new_size))
except Exception as E:
print(f'** Error {E} **')
pass # something weird happened making the full filename
# --------------------------------- Close & Exit ---------------------------------
window.close()