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MsgBox changed to Popup. Removed Read button. Listbox returns when selected

This commit is contained in:
MikeTheWatchGuy 2018-09-03 16:51:25 -04:00
parent c14ba594e7
commit 5d6ae5dcdc
1 changed files with 13 additions and 12 deletions
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25
Demo_Img_Viewer.py
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@ -20,7 +20,7 @@ PIL
# Get the folder containing the images from the user
rc, folder = sg.GetPathBox('Image Browser', 'Image folder to open', default_path='')
if not rc or not folder:
sg.MsgBoxCancel('Cancelling')
sg.PopupCancel('Cancelling')
raise SystemExit()
# PIL supported image types
@ -34,7 +34,7 @@ fnames = [f for f in flist0 if os.path.isfile(os.path.join(folder,f)) and f.lowe
num_files = len(fnames) # number of iamges found
if num_files == 0:
sg.MsgBox('No files in folder')
sg.Popup('No files in folder')
raise SystemExit()
del flist0 # no longer needed
@ -69,20 +69,21 @@ file_num_display_elem = sg.Text('File 1 of {}'.format(num_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]]
[image_elem]]
col_files = [[sg.Listbox(values = fnames, size=(60,30), key='listbox')],
[sg.ReadFormButton('Read')]]
col_files = [[sg.Listbox(values = fnames, select_submits=True, size=(60,30), key='listbox')],
[sg.ReadFormButton('Next', size=(8,2)), sg.ReadFormButton('Prev',
size=(8,2)), file_num_display_elem]]
layout = [[sg.Column(col_files), sg.Column(col)]]
button, values = form.LayoutAndRead(layout) # Shows form on screen
form.Layout(layout) # Shows form on screen
# loop reading the user input and displaying image, filename
i=0
while True:
# read the form
button, values = form.Read()
# perform button and keyboard operations
if button is None:
@ -91,12 +92,13 @@ while True:
i += 1
if i >= num_files:
i -= num_files
filename = os.path.join(folder, fnames[i])
elif button in ('Prev', 'MouseWheel:Up', 'Up:38', 'Prior:33'):
i -= 1
if i < 0:
i = num_files + i
if button == 'Read': # something from the listbox
filename = os.path.join(folder, fnames[i])
elif button in ('Read', ''): # something from the listbox
f = values["listbox"][0] # selected filename
filename = os.path.join(folder, f) # read this file
i = fnames.index(f) # update running index
@ -110,5 +112,4 @@ while True:
# update page display
file_num_display_elem.Update('File {} of {}'.format(i+1, num_files))
# read the form
button, values = form.Read()