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

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

Browse source
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
Download patch file Download diff file Expand all files Collapse all files

78
DemoPrograms/Demo_PNG_Thumbnail_Viewer.py
View file

@ -1,26 +1,25 @@
#!/usr/bin/env python
import sys
if sys.version_info[0] >= 3:
import PySimpleGUI as sg
else:
import PySimpleGUI27 as sg
from PIL import Image
from sys import exit
import PySimpleGUI as sg
import os
from sys import exit as exit
from PIL import Image
import io
import numpy as np
thumbnails = {}
thumbnails = {}
ROWS = 8
COLUMNS = 8
sg.SetOptions(border_width=0)
sg.set_options(border_width=0)
# Get the folder containing the images from the user
# folder = 'A:/TEMP/pdfs'
folder = sg.PopupGetFolder('Image folder to open')
folder = sg.popup_get_folder('Image folder to open')
if folder is None:
sg.PopupCancel('Cancelling')
sg.popup_cancel('Cancelling')
exit(0)
def image_file_to_bytes(filename, size):
try:
image = Image.open(filename)
@ -32,65 +31,72 @@ def image_file_to_bytes(filename, size):
imgbytes = None
return imgbytes
def set_image_to_blank(key):
img = Image.new('RGB', (100, 100), (255, 255, 255))
img.thumbnail((1, 1), Image.ANTIALIAS)
bio = io.BytesIO()
img.save(bio, format='PNG')
imgbytes = bio.getvalue()
window.FindElement(key).Update(image_data=imgbytes)
window[key].update(image_data=imgbytes)
# get list of PNG files in folder
png_files = [os.path.join(folder, f) for f in os.listdir(folder) if '.png' in f]
png_files = [os.path.join(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.Popup('No PNG images in folder')
sg.popup('No PNG images in folder')
exit(0)
# define menu layout
menu = [['&File', ['&Open Folder', 'E&xit']], ['&Help', ['&About',]]]
menu = [['&File', ['&Open Folder', 'E&xit']], ['&Help', ['&About', ]]]
buttons = []
for display_index in range(ROWS):
row = []
for j in range(COLUMNS):
row.append(sg.Button('',border_width=0,button_color=sg.COLOR_SYSTEM_DEFAULT, key=(display_index, j)))
row.append(sg.Button('', border_width=0,
button_color=sg.COLOR_SYSTEM_DEFAULT, key=(display_index, j)))
buttons.append(row)
col_buttons = [[]]
# define layout, show and read the window
col = [[sg.Text(png_files[0], size=(80, 3), key='filename')],
[sg.Image(data=image_file_to_bytes(png_files[0], (500,500)), key='image')],]
[sg.Image(data=image_file_to_bytes(png_files[0], (500, 500)), key='image')], ]
layout = [[sg.Menu(menu)], [sg.Column(buttons), sg.Column([[sg.Slider((len(png_files),0),default_value=0,size=(38,20),orientation='v', key='_slider_', change_submits=True)]]), sg.Column(col)]]
window = sg.Window('Image Browser',
layout = [
[sg.Menu(menu)],
[sg.Col(buttons), sg.Col([[sg.Slider((len(png_files), 0), default_value=0, size=(38, 20), orientation='v', key='-slider-', change_submits=True)]]), sg.Col(col)]
]
window = sg.Window('Image Browser', layout,
return_keyboard_events=True,
use_default_focus=False ).Layout(layout).Finalize()
use_default_focus=False, finalize=True)
# -------========= Event Loop =========--------
display_index=0
display_index = 0
while True:
for x in range(ROWS): # update thumbnails
for y in range(COLUMNS):
cur_index = display_index + (x * 4) + y
if cur_index < len(png_files):
filename = png_files[cur_index]
if filename not in thumbnails:
imgbytes = image_file_to_bytes(filename, (100,100))
imgbytes = image_file_to_bytes(filename, (100, 100))
thumbnails[filename] = imgbytes
else:
imgbytes = thumbnails[filename]
button_elem = window.FindElement(key=(x,y))
button_elem.Update(image_data=imgbytes)
button_elem = window[(x, y)]
button_elem.update(image_data=imgbytes)
else:
set_image_to_blank((x,y))
set_image_to_blank((x, y))
event, values = window.Read()
display_index = values['_slider_']
event, values = window.read()
display_index = values['-slider-']
# --------------------- Button & Keyboard ---------------------
if event in (None, 'Exit'):
break
@ -103,28 +109,30 @@ while True:
elif event in ('Next:34', 'Next'):
display_index += 16
window.FindElement('_slider_').Update(display_index)
window['-slider-'].update(display_index)
# ----------------- Menu choices -----------------
if event == 'Open Folder':
newfolder = sg.PopupGetFolder('New folder', no_window=True)
newfolder = sg.popup_get_folder('New folder', no_window=True)
if newfolder is None:
continue
folder = newfolder
png_files = [os.path.join(folder, f) for f in os.listdir(folder) if '.png' in f]
png_files = [os.path.join(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]
display_index = 0
thumbnail = {}
for j in range(ROWS):
for i in range(COLUMNS):
set_image_to_blank((i,j))
set_image_to_blank((i, j))
elif event == 'About':
sg.Popup('Demo PNG Viewer Program', 'Please give PySimpleGUI a try!')
sg.popup('Demo PNG Viewer Program', 'Please give PySimpleGUI a try!')
elif type(event) is tuple:
x, y = event
image_index = display_index + (x * 4) + y
if image_index < len(png_files):
filename = png_files[image_index]
imgbytes = image_file_to_bytes(filename, (500, 500))
window.FindElement('image').Update(data=imgbytes)
window.FindElement('filename').Update(filename)
window['image'].update(data=imgbytes)
window['filename'].update(filename)
window.close()