CODEWITHSUNDEEP
pythonqtpyqtpysideqwidget
alphanumeric
alphanumeric

Reputation: 19379

QImage: URL instead of file path?

enter image description here

This code assigns a raster pixmap to a label. Instead of generating one I could simply read a local file:

img = QtGui.QImage('/Users/user/Desktop/photo.jpg')

I wonder if there is a way to specify the URL link instead of file path? Then QLabel would get its pixmap straight from a web?

from PyQt4 import QtCore, QtGui


if __name__ == '__main__':
    app = QtGui.QApplication(sys.argv)
    if not QtGui.QApplication.instance():
        app=QtGui.QApplication([])

    window = QtGui.QWidget()
    window.setLayout(QtGui.QVBoxLayout())

    img = QtGui.QImage(32, 32, QtGui.QImage.Format_RGB32)
    img.fill(QtCore.Qt.red)

    pixmap = QtGui.QPixmap(img)
    lbl = QtGui.QLabel()
    lbl.setPixmap(pixmap)

    icon = QtGui.QIcon(pixmap)
    window.layout().addWidget(lbl)

    window.show()
    sys.exit(app.exec_())

Upvotes: 3

Views: 4154

Answers (2)

Matanoga
Matanoga

Reputation: 111

To my knowledge, there is no direct way of getting a QImage or QPixMap to load data straight from a URL. But you can bypass that by first extracting the data from the URL, and then loading it to a QPixMap.

Get data from the URL:

import urllib2 
url_data = urllib2.urlopen(path).read()

Python3:

import urllib.request
url_data = urllib.request.urlopen(path).read()

Now load it to your QPixMap:

pixmap = QPixmap()
pixmap.loadFromData(url_data)
lbl.setPixmap(pixmap)

It is worth saying you should try and catch exceptions like urllib2.URLError or InvalidURL, handle cases where the URL is secured (https) etc.

Upvotes: 4

Oliseh Genesis
Oliseh Genesis

Reputation: 1

'''

import requests

''' imageurl = "your url here" headers = { "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36" }

try: with requests.get(image_url, headers=headers, stream=True) as response: response.raise_for_status()

    # Read the content in chunks to handle large files
    url_data = b""
    for chunk in response.iter_content(chunk_size=8192):
        url_data += chunk

'''

# Continue with your image processing code
image = QImage()
image.loadFromData(url_data)
image_label = QLabel()
image_label.setPixmap(QPixmap(image))
# image_label.setFixedSize()  # Adjust the size as needed
layout.addWidget(image_label)

''' except requests.HTTPError as e: print(f"Failed to retrieve image. HTTP Error: {e}") except Exception as e: print(f"An error occurred: {e}") '''

Upvotes: 0

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