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Major update of all demo programs to use new PEP8 bindings, etc

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This commit is contained in:
PySimpleGUI 2019-10-23 16:10:03 -04:00
parent 3f7c87c562
commit 7f52778bcc
307 changed files with 19546 additions and 3297 deletions
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31
DemoPrograms/Demo_PDF_Viewer.py
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@ -34,19 +34,16 @@ pixmaps and page re-visits will re-use a once-created display list.
"""
import sys
import fitz
if sys.version_info[0] >= 3:
import PySimpleGUI as sg
else:
import PySimpleGUI27 as sg
from sys import exit as exit
from binascii import hexlify
import PySimpleGUI as sg
from sys import exit
sg.ChangeLookAndFeel('GreenTan')
sg.change_look_and_feel('GreenTan')
if len(sys.argv) == 1:
fname = sg.PopupGetFile('PDF Browser', 'PDF file to open', file_types=(("PDF Files", "*.pdf"),))
fname = sg.popup_get_file(
'PDF Browser', 'PDF file to open', file_types=(("PDF Files", "*.pdf"),))
if fname is None:
sg.PopupCancel('Cancelling')
sg.popup_cancel('Cancelling')
exit(0)
else:
fname = sys.argv[1]
@ -90,12 +87,13 @@ def get_page(pno, zoom=0):
return pix.getPNGData() # return the PNG image
window = sg.Window(title, return_keyboard_events=True, use_default_focus=False)
window = sg.Window(title, layout,
return_keyboard_events=True, use_default_focus=False)
cur_page = 0
data = get_page(cur_page) # show page 1 for start
image_elem = sg.Image(data=data)
goto = sg.InputText(str(cur_page + 1), size=(5, 1), do_not_clear=True)
goto = sg.InputText(str(cur_page + 1), size=(5, 1))
layout = [
[
@ -113,8 +111,6 @@ layout = [
],
[image_elem],
]
window.Layout(layout)
my_keys = ("Next", "Next:34", "Prev", "Prior:33", "Top-L", "Top-R",
"Bot-L", "Bot-R", "MouseWheel:Down", "MouseWheel:Up")
zoom_buttons = ("Top-L", "Top-R", "Bot-L", "Bot-R")
@ -124,7 +120,7 @@ old_zoom = 0 # used for zoom on/off
# the zoom buttons work in on/off mode.
while True:
event, values = window.Read(timeout=100)
event, values = window.read(timeout=100)
zoom = 0
force_page = False
if event is None:
@ -132,7 +128,6 @@ while True:
if event in ("Escape:27",): # this spares me a 'Quit' button!
break
# print("hex(button)", hexlify(button.encode()))
if event[0] == chr(13): # surprise: this is 'Enter'!
try:
cur_page = int(values[0]) - 1 # check if valid
@ -140,7 +135,7 @@ while True:
cur_page += page_count
except:
cur_page = 0 # this guy's trying to fool me
goto.Update(str(cur_page + 1))
goto.update(str(cur_page + 1))
# goto.TKStringVar.set(str(cur_page + 1))
elif event in ("Next", "Next:34", "MouseWheel:Down"):
@ -177,11 +172,11 @@ while True:
if force_page:
data = get_page(cur_page, zoom)
image_elem.Update(data=data)
image_elem.update(data=data)
old_page = cur_page
old_zoom = zoom
# update page number field
if event in my_keys or not values[0]:
goto.Update(str(cur_page + 1))
goto.update(str(cur_page + 1))
# goto.TKStringVar.set(str(cur_page + 1))