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We set imageLabel's size policy to ignored, making the users able to scale the image to whatever size they want when the Fit to Window option is turned on. The size policy describes how the item should grow horizontally and vertically when arranged in a layout. The setSizePolicy() sets the size policy to policy. The setBackgroundRole() method let us use a color role for the background, which means one of the predefined color of the style applied to the widget. ScrollArea->setBackgroundRole(QPalette::Dark) ImageLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored)
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ImageLabel->setBackgroundRole(QPalette::Base) ImageViewer::ImageViewer(QWidget *parent) :
IMAGEVIEWER LINUX CODE
This time, we set up the QScrollArea and the QLable using code but not Designer. More work on the Scroll area and the Label If the child widget exceeds the size of the frame, QScrollArea automatically provides scroll bars. QScrollArea provides a scrolling view around another widget. QLabel is typically used for displaying text, but it can also display an image. We want to put Scroll Area into the Main Window: Let's open up Designer by double-clicking the imageviewer.ui. Also, in the header, we declared a pointer to the Ui::ImageViewer as a private member, ui. Note that we have a namespace UI, and our ImageViewer is under the UI scope. GreaterThan(QT_MAJOR_VERSION, 4): QT += widgetsįrom the highlight line, we have an incident of the ImageViewer class.Įxplicit ImageViewer(QWidget *parent = 0) Let's open up imageviewer.pro, add a line to support print:
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While it does more than just view images, Shotwell is quite speedy and does a great job of displaying photos and other graphics.ĭo you have a favorite lightweight image viewer for the Linux desktop? Feel free to share your preferences by leaving a comment.Applications->Qt Gui Application->Choose. Shotwell is the photo manager for the GNOME desktop. It packs features, like metadata editing and viewing camera RAW image formats, that other viewers lack. Don't let its simplicity fool you, though. Geeqie is one of the lighter and faster image viewers out there. Both the ImageMagick and GraphicsMagick image manipulation packages have an application named display, and both versions have basic and advanced options for viewing images. If the command line is more your thing, then display might be the viewer for you. Its interface is clean and uncluttered, and Viewnior can even do some basic image manipulation. Viewnior bills itself as a "fast and simple image viewer for GNU/Linux," and it fits that bill nicely. If these four image viewers don't suit your needs, here are some others that might interest you. You can, for example, control whether Feh's window has a border, set the minimum and maximum sizes of the images you want to view, and tell Feh at which image in a folder you want to start viewing. What could be simpler?įeh might be light, but it offers some options. Feh loads quickly, and you can scroll through a set of images with a mouse click or by using the left and right arrow keys on your keyboard. You drive Feh from the command line: just point it at an image or a folder containing images and away you go.
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It's simple, unadorned, and does what it's designed to do very well. Fehįeh is an old favorite from the days when I computed on older, slower hardware.
IMAGEVIEWER LINUX PLUS
If you want something with a few more features, but still want it to be lightweight, then take a closer look at these four image viewers for the Linux desktop, plus a handful of bonus options if they don't meet your needs. On the other hand, the basic image viewer included with most Linux desktop environments might not be enough for your needs. Free online course: RHEL Technical Overview.