To view the resulting UI, we can use the standard application template below. Start by creating a QPixmap and a QLabel. QPixmap supports all the major image formats: BMP,GIF,JPG,JPEG,PNG,PBM,PGM,PPM,XBM and XPM. To show the image, add the QPixmap to a QLabel. QPixmap () can load an image, as parameter it has the filename. This shows the entire image at all times, although it does not respect the aspect ratio of the image if you resize the widget. A QPixmap can be used to show an image in a PyQT window. When scaledContents is enabled the image is resized to the fit the bounding box of the QLabel widget. In the same controls panel, click to enable scaledContents. It is build with pyqt framework and it relies on qml language to structure the view. You need to resize the QLabel to be able to see the entire image. This python application is an image viewer which support visualization of EXIF data. From the property editor dropdown select "Choose File…" and select an image file to insert.Īs you can see, the image is inserted, but the image is kept at its original size, cropped to the boundaries of the QLabel box. Next, with the Label selected, look in the right hand QLabel properties panel for the pixmap property (scroll down to the blue region). Drag this onto the QMainWindow to add it. You can find Label at in Display Widgets in the bottom of the left hand panel. Using Qt Designerįirst, create a MainWindow object in Qt Designer and add a "Label" to it.
#Pyqt image viewer how to
Below we'll look at how to use QLabel to display a widget in your applications. The primary use of QLabel is of course to add labels to a UI, but it also has the ability to display an image - or pixmap - instead, covering the entire area of the widget. MainWindow Sample app to test the ImageViewer class. The widget you use to display an image is QLabel. ImageViewer Image Viewer than can pan & zoom images (QPixmaps). Since you're wanting to insert an image you might be expecting to use a widget named QImage or similar, but that would make a bit too much sense! QImage is actually Qt's image object type, which is used to store the actual image data for use within your application.
#Pyqt image viewer code
In this short tutorial, we will look at how you can insert an external image into your PyQt5/Pyside2 application layout, using both code and Qt Designer. Unfortunately, because of how this is done in Qt, it can be a little bit tricky to work out at first. :/images/arrow-up.png:/images/arrow-up.Adding images to your application is a common requirement, whether you're building an image/photo viewer, or just want to add some decoration to your GUI. :/images/bookmarks.png:/images/bookmarks.png :/images/lookfeel.png:/images/lookfeel.png :/images/edit-copy.png:/images/edit-copy.png :/images/arrow-down.png:/images/arrow-down.png Widget used for display and analysis of image data. Its primary goals are to provide fast, interactive graphics for displaying data (plots, video, etc.). :/images/document_open.png:/images/document_open.png PyQtGraph is a graphics and user interface library for Python that provides functionality commonly required in designing and science applications. WebKit is an up-to-date, standards-compliant rendering engine used by Google's. :/images/dialog_information.png:/images/dialog_information.png The QWebView is a highly useful control it allows you to display web pages from URLs, arbitrary HTML, XML with XSLT stylesheets, web pages constructed as QWebPages, and other data whose MIME types it knows how to interpret. :/images/chapters.png:/images/chapters.png :/images/font_size_smaller.png:/images/font_size_smaller.png QScrollArea provides a scrolling view around another widget.
#Pyqt image viewer software
It is a free software originally designed by Riverbank Computing, it is accessible via similar terms to Qt versions older than 4.5, signifying that a wide array of licenses such as General Public License are supported, yet unlike Qt, PyQt cannot be used with LGPL. QLabel is typically used for displaying text, but it can also display an image. What is PyQt PyQt is a Python binding of the cross-platform GUI toolkit Qt, used as a Python module. :/images/font_size_larger.png:/images/font_size_larger.png Image Viewer Example - Qt for Python Image Viewer Example The example shows how to combine QLabel and QScrollArea to display an image. :/images/previous.png:/images/previous.png Static functions of QFileDialog class (getOpenFileName () and getSaveFileName. The dialog is invoked either through static functions or by calling exec () function on the dialog object. :/images/window-close.png:/images/window-close.png It enables the user to navigate through the file system and select a file to open or save.
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