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

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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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58
DemoPrograms/Demo_OpenCV.py
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@ -1,13 +1,8 @@
#!/usr/bin/env python
import sys
if sys.version_info[0] >= 3:
import PySimpleGUI as sg
else:
import PySimpleGUI27 as sg
import cv2 as cv
import PySimpleGUI as sg
from PIL import Image
import cv2 as cv
import io
from sys import exit as exit
"""
Demo program to open and play a file using OpenCV
@ -18,55 +13,70 @@ It's main purpose is to show you:
For added fun, you can reposition the video using the slider.
"""
def main():
# ---===--- Get the filename --- #
filename = sg.PopupGetFile('Filename to play')
filename = sg.popup_get_file('Filename to play')
if filename is None:
exit(69)
return
vidFile = cv.VideoCapture(filename)
# ---===--- Get some Stats --- #
num_frames = vidFile.get(cv.CAP_PROP_FRAME_COUNT)
fps = vidFile.get(cv.CAP_PROP_FPS)
sg.ChangeLookAndFeel('Black')
sg.change_look_and_feel('Black')
# ---===--- define the window layout --- #
layout = [[sg.Text('OpenCV Demo', size=(15, 1), font='Helvetica 20')],
[sg.Image(filename='', key='_image_')],
[sg.Slider(range=(0, num_frames), size=(60, 10), orientation='h', key='_slider_')],
[sg.Image(filename='', key='-image-')],
[sg.Slider(range=(0, num_frames),
size=(60, 10), orientation='h', key='-slider-')],
[sg.Button('Exit', size=(7, 1), pad=((600, 0), 3), font='Helvetica 14')]]
# create the window and show it without the plot
window = sg.Window('Demo Application - OpenCV Integration', no_titlebar=False, location=(0,0)).Layout(layout)
window = sg.Window('Demo Application - OpenCV Integration',
layout,
no_titlebar=False,
location=(0, 0))
image_elem = window.Element('_image_') # locate the elements we'll be updating. Does the search only 1 time
slider_elem = window.Element('_slider_')
# locate the elements we'll be updating. Does the search only 1 time
image_elem = window['-image-']
slider_elem = window['-slider-']
# ---===--- LOOP through video file by frame --- #
cur_frame = 0
while vidFile.isOpened():
event, values = window.Read(timeout=0)
event, values = window.read(timeout=0)
if event in ('Exit', None):
exit(69)
break
ret, frame = vidFile.read()
if not ret: # if out of data stop looping
break
if int(values['_slider_']) != cur_frame-1: # if someone moved the slider manually, the jump to that frame
cur_frame = int(values['_slider_'])
# if someone moved the slider manually, the jump to that frame
if int(values['-slider-']) != cur_frame-1:
cur_frame = int(values['-slider-'])
vidFile.set(cv.CAP_PROP_POS_FRAMES, cur_frame)
slider_elem.Update(cur_frame)
slider_elem.update(cur_frame)
cur_frame += 1
imgbytes = cv.imencode('.png', frame)[1].tobytes() # ditto
image_elem.Update(data=imgbytes)
image_elem.update(data=imgbytes)
"""
#############
# | | #
# | | #
# |_| #
# __ __ #
# \ \ / / #
# \ V / #
# \_/ #
""" #############
# This was another way updates were being done, but seems slower than the above
img = Image.fromarray(frame) # create PIL image from frame
bio = io.BytesIO() # a binary memory resident stream
img.save(bio, format= 'PNG') # save image as png to it
imgbytes = bio.getvalue() # this can be used by OpenCV hopefully
image_elem.Update(data=imgbytes)
image_elem.update(data=imgbytes)
"""
main()
main()