mlaga97/PySimpleGUI
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Added Enable/Disable to all input elements! Refresh of many Demo programs

Browse source
This commit is contained in:
MikeTheWatchGuy 2018-09-11 08:38:38 -04:00
parent 5a59f4753b
commit c79b0be31d
11 changed files with 389 additions and 302 deletions
Download patch file Download diff file Expand all files Collapse all files

56
Demo_PNG_Viewer.py
View file

@ -4,9 +4,9 @@ import os
# Simple Image Browser based on PySimpleGUI
# Get the folder containing the images from the user
rc, folder = sg.GetPathBox('Image Browser', 'Image folder to open', default_path='')
if rc is False or folder is '':
sg.MsgBoxCancel('Cancelling')
folder = sg.PopupGetFolder('Image folder to open')
if folder is None:
sg.PopupCancel('Cancelling')
exit(0)
# get list of PNG files in folder
@ -14,52 +14,62 @@ png_files = [folder + '\\' + f for f in os.listdir(folder) if '.png' in f]
filenames_only = [f for f in os.listdir(folder) if '.png' in f]
if len(png_files) == 0:
sg.MsgBox('No PNG images in folder')
sg.Popup('No PNG images in folder')
exit(0)
# define menu layout
menu = [['File', ['Open Folder', 'Exit']], ['Help', ['About',]]]
# create the form that also returns keyboard events
form = sg.FlexForm('Image Browser', return_keyboard_events=True, location=(0,0), use_default_focus=False )
# make these 2 elements outside the layout because want to "update" them later
# initialize to the first PNG file in the list
image_elem = sg.Image(filename=png_files[0])
filename_display_elem = sg.Text(png_files[0], size=(80, 3))
file_num_display_elem = sg.Text('File 1 of {}'.format(len(png_files)), size=(15,1))
# define layout, show and read the form
col = [[filename_display_elem],
[image_elem],
[sg.ReadFormButton('Next', size=(8,2)), sg.ReadFormButton('Prev', size=(8,2)), file_num_display_elem]]
col = [[sg.Text(png_files[0], size=(80, 3), key='filename')],
[sg.Image(filename=png_files[0], key='image')],
[sg.ReadFormButton('Next', size=(8,2)), sg.ReadFormButton('Prev', size=(8,2)),
sg.Text('File 1 of {}'.format(len(png_files)), size=(15,1), key='filenum')]]
col_files = [[sg.Listbox(values=filenames_only, size=(60,30), key='listbox')],
[sg.ReadFormButton('Read')]]
layout = [[sg.Column(col_files), sg.Column(col)]]
layout = [[sg.Menu(menu)], [sg.Column(col_files), sg.Column(col)]]
button, values = form.LayoutAndRead(layout) # Shows form on screen
# loop reading the user input and displaying image, filename
i=0
while True:
# perform button and keyboard operations
# --------------------- Button & Keyboard ---------------------
if button is None:
break
elif button in ('Next', 'MouseWheel:Down', 'Down:40', 'Next:34') and i < len(png_files)-1:
i += 1
elif button in ('Prev', 'MouseWheel:Up', 'Up:38', 'Prior:33') and i > 0:
i -= 1
elif button == 'Exit':
exit(69)
if button == 'Read':
filename = folder + '\\' + values['listbox'][0]
# print(filename)
else:
filename = png_files[i]
filename = folder + '/' + values['listbox'][0] if button == 'Read' else png_files[i]
# ----------------- Menu choices -----------------
if button == 'Open Folder':
newfolder = sg.PopupGetFolder('New folder', no_window=True)
if newfolder is None:
continue
folder = newfolder
png_files = [folder + '/' + f for f in os.listdir(folder) if '.png' in f]
filenames_only = [f for f in os.listdir(folder) if '.png' in f]
form.FindElement('listbox').Update(values=filenames_only)
form.Refresh()
i = 0
elif button == 'About':
sg.Popup('Demo PNG Viewer Program', 'Please give PySimpleGUI a try!')
# update window with new image
image_elem.Update(filename=filename)
form.FindElement('image').Update(filename=filename)
# update window with filename
filename_display_elem.Update(filename)
form.FindElement('filename').Update(filename)
# update page display
file_num_display_elem.Update('File {} of {}'.format(i+1, len(png_files)))
form.FindElement('filenum').Update('File {} of {}'.format(i+1, len(png_files)))
# read the form
button, values = form.Read()